WO2010071396A1

WO2010071396A1 - Improvements to a pump-type laundry washing machine

Info

Publication number: WO2010071396A1
Application number: PCT/MX2009/000139
Authority: WO
Inventors: Blanca Estela Guerrero Lara; Salvador Virgilio Guerrero Parra; Gilberto Manuel Guerrero Parra
Original assignee: Blanca Estela Guerrero Lara; Salvador Virgilio Guerrero Parra; Gilberto Manuel Guerrero Parra
Priority date: 2008-12-19
Filing date: 2009-12-18
Publication date: 2010-06-24
Also published as: EP2402494A1; CN102325933A; US20120118023A1; EP2402494A4; MX2008016451A; CN102325933B

Abstract

This invention relates to a vertical machine for washing and wringing clothes in two tubs by means of a closed pump circuit which supplies the washing or centrifuging system. The washing process uses a special eductor which produces a cavitation effect above the clothes, together with a rotary washing system which causes the paused circulation of the clothes; rotation of the washing system is produced by the same water flow. Centrifuging is performed inside the inner tub which is rotationally driven by means of a turbine so that the tub rotates about the virtual axis which passes through the centre of gravity thereof and the clothes to be wrung, together with the use of a special annular self-balancing chamber. Rotation of the tub about the virtual axis is achieved by float-mounting the inner tub or by means of special supports which combine the speed components of any point of the tub. The basic principles of the above concepts are applicable to different embodiments and also, with certain modifications, to a horizontal-axis or front-loading washing machine or an industrial washing machine.

Description

"IMPROVEMENTS TO WASHING CLOTHES BY PUMPING"

TO THIS CED BETWEEN:

The current vertical clothes washers employ agitators, either of the oscillating type or of the propeller type, to scrub the clothes and produce currents within the wash tub that pass through the fabrics of the fabric and try to loosen the particles adhered thereto; but these currents are not so strong and effective to pass through the innermost fibers of the threads, so that the washing times may be too long and spend more energy than is necessary. These washing machines require machined transmission and speed reduction mechanisms to produce the oscillatory movement of the agitator impeller or in the case of propeller impellers, these tend to tangle the clothes a lot. In addition, during the squeezing of the clothes by centrifugation, the tub rotates supported by a fixed central axis that makes balancing difficult during rotation.

This invention is an improvement to the patent No. 5,953,939 registered by the authors thereof in the United States of America. The purpose of this invention is to improve washing machines, rinse and squeeze clothes; In addition to taking advantage of the cavitation phenomenon in some way for a more efficient washing. The invention relates to a machine for washing clothes by means of a recirculating pumping system that employs a special educator to produce cavitation inside the washing tub and, for squeezing, has a self-balancing centrifuge system that causes the tub to rotate on the virtual axis that passes through its center of gravity. With these improvements it is a question of obtaining a deeper and more uniform washing by circulating the clothes through the cavitation zone inside the tub; In addition to reducing pressure losses in the hydraulic circuit. Here too, as variants, the way to apply all these new ideas to a horizontal or front-loading washing machine and an industrial washing machine is shown.

This document presents the new basic ideas of the invention and its variants, with the intention of combining in a practical way the most suitable to have a washing machine and squeezing clothes that increase the efficiency and speed of washing, saving time and energy in its operation.

D ES CR IP CIÓN In the following description and in the attached drawings the characteristics of the invention are detailed, indicating the parts thereof with the same reference signs both in the description and in the figures; the parts with the same function in the different figures are marked with the same number in each of them. Fig. 1 represents a first version of the washing machine in which, in general, the recirculating pumping system is used, which is used to launch a water jet inside the washing tub and to drive a turbine which, by means of A speed reducer moves a rotary washing system that produces the transit of the clothes inside the washing tub. In addition, the centrifuge system that rotates the floating tub on the virtual axis that passes through its center of gravity is shown. For simplicity, the eductor system is not shown.

Fig. 2 shows the special eductor and a rotary washing system that is driven by a jet reaction; This jet is thrown on a drag zone to push the clothes into the tub. In Fig. 3 a first version of the application of the rotary washing system of

Fig. 2, as well as a first way of arranging, remaining fixed in the system, the special eductor and the steam chamber that feeds it to produce steam bubbles that cavitate within the wash tub.

Figure 4 is a variant of the rotary washing system of Fig. 3, used to reduce friction losses in the pipe. In this version, the eductor rotates together with the rotary washing system, while the steam chamber remains fixed, whereby a rotating seal system, mechanical seal type, is inserted in the tube that conducts the steam between the steam chamber static and the suction of the eductor in rotation.

Fig. 5 is another system similar to the previous one, in which the steam chamber and the eductor rotate together to avoid the use of a rotating seal, in addition to using a planetary reducer to transmit the rotation to the system.

Fig. 6 describes a mechanism for the rotation of the washing system to be paused.

In Fig. 7 the feeding to the rotary washing system is carried out below the tubs. In this case, the rotary washing system moves laterally together with the centrifuge tub during this cycle, so that Fig. 8, as a continuation of Fig. 7, shows mechanisms to allow this displacement in the case of using A speed reducer.

In Fig. 9 the same system of Fig. 7 is shown, except that in this figure the rotary washing system remains centered with the geometric axis of the washing machine and the steam chamber is fixed. Figures 10 and 11 describe a system to obtain a better balance of the centrifuge tub.

Fig. 12 is a mechanism, in addition to the flotation system, for holding the tub during centrifugation in its free rotation on any virtual axis that passes through the center of gravity of the tub and the clothes to be squeezed. Fig. 13 is a variant of Figs. 7 or 9 in which the support of Fig. 12 is applied and a pump is used for the pumping circuit of the wash and another for the centrifuge, both driven by the same motor.

In Fig. 14 a system is presented to eliminate the threads and fluff that the clothes give off. In Fig. 15 the way of applying the new washing and centrifuging system of the previous figures in a washing machine of the type of tubs or drums of horizontal axial axis or frontal load is illustrated.

Fig. 16 is the same as Fig. 15, except that the washing system changes slightly.

In Fig. 17 the basic idea of Fig. 12 is applied to the case of Fig. 15 or 16, and Fig. 18 and 19 are variants of the same idea applied to a vertical axis washer like those of Ia Fig. 7, 9 or 13. In Fig. 20 or in Fig. 21 the system of Fig. 18 or 19 is used for a version of the washing machine of Fig. 3 with less losses.

Fig. 22 is an industrial washing machine for washing large quantities of clothes and Fig. 23 is the squeezing system of the laundry washed in the system of Fig. 22. Fig. 24 is a second version of the industrial washing machine of Fig. 21 in which the squeezing is carried out by centrifuging the clothes. Fig. 25 is a version of Fig. 9 and Fig. 26 is an optional system of a planetary speed reducer that produces an oscillatory movement of blades to make the transit of the clothes inside the tubs.

Support structures, controls, cabinet, etc., for simplicity, are not shown in the figures.

- Returning to Fig. 1, it is seen that the new washing machine has a main tub (7) inside which an internal tub (14) is placed that is approximately half the height of that, in order that the nodding of the internal tub is minimal when it rotates floating, with the clothes to be squeezed seated in its bottom, inside the main one. A closed annular chamber (28) forms the side of the internal tub (14) and contains, as a counterweight to balance in the centrifuge, a certain amount of a fluid and heavy material, such as some liquid or small spheres of smooth material. The internal tub is housed in a widening of the lower half of the main tub (7), so that the diameters of both tubs are sufficiently matched. The peripheral separation between the widening step of the main tub and the upper edge of the interior is covered, to prevent the passage of the clothes, by a kind of sliding annular gate (31) with an "L" shaped section, whose The vertical portion is adjusted slightly inside the main tub and the horizontal one is supported, by the weight itself, on the upper edge of the inner tub. The horizontal part of the "L" has attached below a plate (30) of anti-friction material, which sits and slides on another plate (30) of the same material fixed on the upper edge of the inner tub, when it rotates. In the center of the bottom of the inner tub (14) a wide vertical tube (11) rises that ends, in its upper part, in the case of a planetary speed reducer (2) and, crossing the tub, extends towards down in another tube (20) to drain the water from the tub. Below the level of the bottom of the tub, a vertical and axial turbine (26) is housed within a widening, like a carcass, of the vertical tube (11), so that the axis (32) of the turbine 'drives to the planetary reducer entering it through a bearing housing (33) with seal against leakage of the lubricant. On the other hand, the central axis (34) of the outlet of the reducer (2) is welded, above it, to the center of the upper cover (35) of a second wide tube or hollow central post (1), called hereafter center post This hollow central post is outer, concentric and not very tight to the wide tube (11), it is also sealed only on its upper part with such a lid; around this central post, one or two helical plates (4) are fixed, which, by turning the post, serve as a screw to push the clothes down. Also fixed to the central post (1), at the bottom of the tub, are radial blades (12) that turn towards the periphery of the clothes that fall to the bottom of the tub. The hollow central post, the helical plate welded to it and the system that rotates both to move the clothes inside the tub form the rotary washing system in this figure and following.

The washing and rinsing cycles are carried out by means of a closed pumping circuit. The circuit consists of a pump (18) placed under the tubs and with its discharge connected, through the tube (8) and the control valve (13), to a nozzle (6) or to a special eductor (not shown in The figure for simplification) that discharges in a suitable direction a strong jet of water inside the tubs. Through the holes (10), which both tubes (11) and (1) have in the lower part of its periphery, the flow of discharge water continuously leaves the internal tub through the central tube (11) and the tube eviction (20) to drive the rotation of the turbine (26). By means of the speed reducer (2), the rotating movement of the shaft (32) of the turbine is transmitted, with less speed and greater force, to the hollow central post (1) to move the clothes with the helical plates and blades. The upper part of both tubes has no holes and is closed so that when filling the tub with water a chamber (3) of compressed air is formed inside them that prevents water from reaching the reducer system. To facilitate the movement of the clothes more, the tubs have in their inner periphery other helical plates (5) which, with the circular movement of the water flow inside the tub, make the clothes tend to ascend along the sides of the tubs . The water leaving the discharge of the turbine continues to flow through the evacuation tube (20) of the internal tub and, leaving it, enters directly to the suction tube (19) of the pump (18) that returns the flow of water to it to complete the closed pumping circuit.

The squeeze cycle is carried out by centrifuging the clothes. For this, you start by evacuating the water from the tubs by some drainage system, not indicated in Fig. 1, until that the water level decreases to a little below the bottom of the tubs, so that the water that is inside the internal tub (14) leaves through the check or check valves (27) of the bottom of the tub. Upon completion of dislodging the water to such a level, water is reintroduced so that only the space between the two tubs is filled to a certain predetermined level (29); Due to the check valves (27) of the internal tub, the water will not be introduced back into this tub, which will remain floating in the water between both tubs. The evacuation tube (20) of the internal tub also has a check valve (15) with a floating shutter, which serves to introduce water again between the two tubs and during centrifugation the same water does not enter this tube to The internal tub.

Floating the internal tub, it is rotated by a special turbine and similar to a horizontal Pelton type turbine. This turbine consists of a vertical box (25), almost cylindrical in shape, which is centrally connected to the bottom of the tub or to the vertical evacuation tube (20) and is transferred by it; on the side of the box, a distributed series of radial buckets of simple cavity (24), similar to a curved ladle almost 180 degrees, leaving the free passage inside of The box only through its cavities. On the other hand, as observed in the cut AA ', the internal edges of the buckets (24) are directed and topped in a series of holes (21) that the evacuation tube (20) has on its side of that area, so that the water from the jets that impel the buckets is discharged through such holes into the tube. These water jets are launched by a series of nozzles (17) on the bucket cavities tangentially, so that the impulse applied on the buckets by the jets rotates the internal tub (14).

To operate the turbine described in the previous paragraph, the control valve (16) of the nozzles (17) connected to the discharge of the pump (18) is opened. The water flow that drives the turbine is discharged by the evacuation tube (20) at the inlet of the suction tube (19) of the pump (18), so that this same flow is pumped back to the nozzles (17 ) and the closed pumping circuit that maintains the rotation of the turbine is established. The water that wets the clothes and is centrifuged is dislodged from the internal tub by the holes (9) of the tub that are above the level of flotation. The entire system that produces the rotating impulse of the tub is contained in the cylindrical housing (23) or centrifuge chamber that is centrally attached to the bottom of the main tub (7), as a continuation of this one, and at whose bottom the suction tube (19) of the pump. Since the internal tub (14) does not rotate supported by a rigid axis that supports it in its geometric center, it will tend to rotate, due to its flotation, on the virtual axis that passes through the center of gravity of the tub assembly and the clothes to be squeezed. Although the internal tub (14) rotates in a balanced way or without vibrations on this virtual axis, if the clothes are not distributed symmetrically within the tub the virtual axis moves from the geometric axis, causing the tub to nod and oscillate at the no rotate on its geometric axis, so it can hit or rub against the main tub (7). This undesirable effect is diminished by means of the fluid and heavy material contained in the closed annular chamber (28) that forms the side of the tub (14), since when the tub starts rotating the liquid inside this chamber accumulates on the side contrary to the virtual axis shift with respect to the geometric one. When the weight of the accumulated fluid on one side of the chamber counteracts the unbalanced weight of the clothes on the opposite side, the distance between the virtual axis of rotation and the geometric center will decrease, although it will not be null and will remain at an intermediate point, since As these axes approach, the fluid within the balancing chamber (28) is redistributed to a certain extent, but the oscillation and pitching are improved. Between the sides of the tubs are placed bearings with shock absorbers, not shown in the figure, to withstand friction and small knocking between the tubs. Below are methods to prevent redistribution of the counterweight fluid.

So that the flotation of the internal tub within the main tub is stable, a flotation counterweight (22) is added at the lower end of the evacuation tube (20); in this way the metacentro is fixed between the center of flotation and the center of gravity of the entire internal tub system, including wet clothes.

- Fig. 2 illustrates a rotary washing system, similar to that described in the previous figure, which uses the impulse of a jet reaction to rotate the central post with its helical plate, in such a way that the rotation of the post is combined with a positive thrust of the same water jet on the clothes, in order to cause the movement of the same within the tubs and their transit through the area where the cavitation occurs. In the same drawing the special educator mentioned above is described.

In the upper part of Fig. 2 the device is observed to produce the positive thrust on the clothes, which consists of a drag area of the clothes limited by two warped surfaces, (44) and (45), separated by a certain distance one in front of the other, with curvatures found and a certain degree of convergence between the two; in such a way that the clothes, which are in the space limited by both surfaces, can suffer an effective thrust or drag by a jet of water that passes between both surfaces in the direction of the convergence and that leaves a nozzle, a tube or of the educator illustrated in the same figure as a producer of the jet in this case.

Also in the upper part of the figure it is seen that the special eductor is composed, in the first place, of a conical tube or Venturi (39) fed by a tube (40), which increases the speed and lowers the water pressure to a negative pressure The terminal end (41) of the Venturi, of smaller diameter, is enclosed and surrounded by a small cylindrical box or suction chamber of the eductor (37) communicated, through a small suction tube (38), with the upper part of a closed chamber (57) (Fig. 3), described below, where low pressure steam is generated. The suction chamber (37) ends in an outlet tube (36) with a diameter equal to the terminal diameter (41) of the Venturi and aligned with the outlet thereof; to absorb the vapor, a very small clearing (42) is left between the end (41) of the Venturi (39) and the initial end of the outlet tube (36). The outlet tube (36) of the eductor initially has a short and small internal contraction that forms the throat (43) of the eductor and then maintains its normal diameter for the entire length, to preserve the vacuum pressure produced by the Venturi and The throat, unlike a normal eductor that ends in a diffuser. The water fed by the tube (40) to the Venturi (39) of the eductor and the steam sucked by it from the steam chamber, are released by the outlet of the eductor (36) in a stream of water mixed with steam bubbles at a vacuum pressure, which collapse due to atmospheric pressure when discharged into the tub, causing implosions and shock waves that wash the clothes.

The lower part of Fig. 2 shows the system that produces the impulse to rotate the central post (1) with the helical plate (4), by means of a jet reaction in a rotating tube (48) fed by the tube fixed (8) connected to the discharge of the pump. To the left of the lower part of the figure, it is observed that a first type of rotating coupling between these two tubes, which allows the first to rotate over the second, consists in introducing a certain distance the end of the feeding tube (8) into swivel tube (48), with a fine adjustment between the two as a chumacera. The axial displacement between both tubes is limited by mounting on the fixed tube (8) a shoe (52), in the form of a disc with smooth surfaces, which is linked or imprisoned slightly between a pair of discs or turntables, also with smooth surfaces, that are attached or linked to each other at its periphery. The upper plate (51), with a bushing slightly adjusted to the fixed tube, supports the rotation of the system on the upper surface of the shoe (52) and the lower plate (50) joins the rotating tube (48) to support it.

Another version of the swivel coupling between the fixed tube (8) and the swivel (48) is illustrated in the drawing to the right of the previous version. In this case, the fixed feeding tube (8) ends in a wide and hollow cylinder (54), which has the external diameter of a long bushing (53) screwed inside it that serves as a bearing for the rotation of the rotating tube (48), for which the upper end of this tube is inserted into the hub with a fine adjustment. This bushing (53) is gently trapped, on its lower face, by a shoe (52) mounted on the swivel tube and, on its upper face, by another bushing (55) screwed, as a nut, at the end thereof tube. In the lower left part of Fig. 2, it is observed that the rotating tube (48), vertical and centered inside the hollow post (1), has in its lower part a first (46) bend at 90 ° and continues, then leaving a hole in the post, with a second (47) horizontal fold, also close to 90 °, which places the end (40) of the tube outlet perpendicular to the axis of rotation of the tube itself, at a certain distance from this and directing the jet of water that launches at such end towards the area of drag, formed between the terminal surface (44) of the helical plate (4) and the surface (45) of another lower plate welded to the same central post (1), so that the water jet drags the clothes that, pushed by the rotation of the helical plate, it is housed successively in this space.

The distance and perpendicular direction with respect to the axis of the rotating tube (48) with which the water jet exits at the end (40) of the same tube, due to its two bends at 90 degrees, causes this jet, by reaction , push the end of the tube back and drive the rotation of the tube. The transmission of the rotation of the turntable tube to the central post can be done directly, by connecting the pole with the arms (50) to the turntable (50) of the tube, or by means of a speed reducer to increase the torque and decrease The speed of the central post, so that the helical plate (4) is moving the clothes towards the drag zone.

- Fig. 3 is a recirculating pumping washing machine with washing and spinning systems similar to those described in Fig. 1, except that the rotary washing system is driven with a tube that rotates by jet reaction, as described in Fig. 2; In addition, the use of the special eductor in the rotary washing system and the arrangement of the steam chamber (57) that

15 produces this at negative pressure. In this case, the steam chamber and the eductor remain fixed, connected to the feeding tube (8), in order to be able to directly connect the electrical energy to the resistor (56) that heats water in the steam chamber and directly feed the steam produced to The eductor suction chamber. In the lower part of Fig. 3 an enlargement (67) of the eductor and the steam generating system can be seen, which are indicated with the same number (67) in the upper part of the tub (7).

The feeding tube (8) for washing enters centrally inside the tubs, (7) and (14), above these and connects directly with the conical tube or Venturi (39) of the special eductor, in such a way that this together with its suction chamber (37) pass through and remain centrally housed within the steam chamber (57). The steam chamber is a cylindrical box, sealed 5 and housed inside the central post (1), where water is heated by means of the electrical resistance (56) to generate steam at the low pressure of the eductor; This steam is sucked by the suction chamber (37) of the eductor through the small tube (38) whose mouth is in the upper part of the steam chamber to aspirate only this one. Under the center of the bottom of the steam chamber (57), the outlet tube (36) of the eductor protrudes to engage, by means of the support shoe (52) and the rotating plates (50) and (51) as in Fig. 2, with the rotating tube (48) that retains the same small diameter of the outlet tube (36), to maintain the high speed and low pressure of the flow of water and steam produced by the eductor, as already described. United by means of arms (49), the rotating tube (48) drags in its turn to the central post (1); in addition, the lower part and the folds (46) of the same tube are housed within a widening of the lower part of the central post or cover (58) in the form flared, in order to prevent the clothing from getting stuck with such folds. The end (40) of the rotating tube (48) protrudes from the cover (58) through a hole in a radial and vertical plane (66) that interrupts the shape of the bell, so that the water jet and steam bubbles, which are discharged by such end, it is directed towards the drag zone formed between the surface (44) of the helical plate (4) and the plate (45), where the bubbles collapse causing shock waves that wash the clothes.

Inside the inner tub (14) another additional tub (59) is placed, separated a little and with a series of holes (10) through which the water that the tube (40) discharges into the inner tub is flowing out. Through the space (60) between the bottoms of the two tubs, the water leaves them through an eviction tube (20) that starts from the center of the bottom of the inner tub (14) and extends downwards until it flows, very near, on the inlet of the suction tube (19) of the pump (18), to complete the closed pumping circuit during the wash cycle.

To set the level of flotation (29) in Fig. 3, first the water is discharged from the tubs by means of a small pump (62) that discharges (63) to the general drain and whose suction (64) is connected to a outlet (65) of the main tub (7), which is located on its side at the same height as the predetermined float level (29). When the water level reaches the height of the opening (65) it is not possible to continue dislodging the water and the level (29) of the latter will no longer drop; at this point the main pump (18) is started, which begins to suck, through its suction tube (19), the water at the bottom of the centrifuge housing (23) while discharging this same water in jets thrown through the nozzles (17) on the Pelton turbine, which begins to turn and return the water used to the bottom of the housing (23) through the tube (61), coaxial and external to the tube (20), to be recirculated from again for the pump. Since the passage of water from the evacuation tube (20) to the suction tube (19) is more direct, it will suck more water from inside the tube (20) than water dislodged by the turbine. Thus, the tube (20) will empty a certain volume, which will leave the internal tub (14) but cannot return to it due to the check valve (15) inside the tube itself; In this way, the volume of water dislodged from the internal tub increases, by the same amount, the volume between the two tubs, so that the level of water between them will increase beyond the opening (65). In this condition the drain pump (62) will return to work eliminating such excess and repeating the cycle until the internal tub is emptied and floats the rest of the cycle. - In Fig. 4 only a rotary washing system is drawn, for simplicity, which is a variant of the system of Fig. 3, which is used if the pressure losses in it are large. In Fig. 3 the rotating tube (48) has a small diameter, equal to the outlet (36) of the eductor, which can cause large friction losses due to the high speed of the water in the tube and its curvature. To limit these losses, keeping a large diameter throughout the rotating tube (48), in Fig. 4 the eductor is install at the end (40) of the tube (48), after its double curvature (46) (47), connecting such end (40) directly to the Venturi (39) of the eductor.

The closed cylindrical steam chamber (57), which is fixed to be able to directly feed the electrical resistance (56), is housed inside the central post (1) and is centrally transferred and supported by a wide passage tube (69) that It is a continuation of the feeding tube (8). The lower end of the passage tube (69) protrudes from the bottom of the steam chamber (57), sufficient to articulate with the rotating tube (48) by means of a rotating coupling with the shoe (52) linked by the lower rotating plates ( 50) and higher (51), as already described.

The connection between the fixed steam chamber and the suction of the eductor, which rotates with the system, consists of a thin vertical tube (68) that, with its upper end inside the chamber, sucks the generated steam and then is introduced by the side of the passage tube (69), so that its lower end is concentric or coaxial with this tube and connected to the bore of a small vertical bushing (70) with a thick wall fixed, by means of arms (73), to the inside the wall of the passage tube (69). Below the bushing (70), a second thin and short second tube (76) that I could turn inside the bushing is introduced into the borehole, adjusting its diameters slightly as a bearing. This second short tube (76) is connected, through a small section of flexible hose (72), with a third equal tube (38) that goes down centered until it is placed inside the rotating tube (48), where it is held by a ring (74) fixed inside the swivel tube by other arms (73); then, the third tube (38) leaves the rotating tube (48) through the wall thereof and connects directly with the suction (37) of the eductor. The sealing of the connection between the fixed part and the rotating part of the steam duct is done with a mechanical or rotating seal that comprises a ring or disk (71), with a polished and tight face around the second thin tube (76), which it is pressed against the lower face, also polished, of the bushing (70), pushed by a spring (75) that in the lower part is supported against the ring (74) that holds the third steam conduit tube (38). The flexible hose section (72) serves to allow the spring to push the sealing disc. In this way, the steam sucked by the fixed tube (68) can flow through the tube (38), which rotates with the eductor, towards the suction chamber (37) thereof. The arrangement of the other components of the rotary washing system is the same as in Fig. 3.

As an option, the steam chamber (57) of Figures 3 and 4 can be fixed in any other place outside the central post, using a tube (38) or (69) connecting with the suction of the eductor of sufficient length.

- Fig. 5 is similar to the washing system described in Fig. 4 and also shows the tubs (7) and (14). The difference is that the steam chamber (57) is not static and rotates attached to the rotating tube (48). Also shown is the planetary speed reducer (2) that transmits the rotation of the rotating tube (48) to the central post (1). The feeding tube (8) also enters through the upper part of the tubs and is articulated to the rotating tube (48), of equal diameter, by means of the rotating coupling already described, which is composed of the support shoe (52) and the lower (50) and upper (51) rotating plates. The planetary reducer (2) is centered inside the pole and above the rotating coupling between the tubes. The drive gear (79) of the reducer is mounted on a bushing (78) attached to the upper plate (51) and slightly adjusted to the feed tube (8). The axes of the other gears of the reducer, which are fixed to transmit the torque, are mounted on a round support (80), fixed to the feed tube (8), which also serves to support the rotation of the post ( 1) by means of a bearing system (81).

Below the rotating coupling, the cylindrical steam chamber (57) is integrated into the rotating tube (48) so that it passes through centrally. The rotation of the eductor and the steam chamber (57), together with the rotating tube (48), allows the continuity between the inner tube (68) of the steam chamber and the tube (38) that feeds from it to the Ia Suction chamber (37) of the eductor is performed without the need to use a rotating seal. The supply of the electrical energy to the resistance (56) that heats the water of the steam chamber is carried out indirectly, either by means of a connection of sliding contacts on rotating rings of copper or brass, as described below, or by means of of an electrical transformer whose primary is fixed and the secondary, turning with the other components, feeds the electrical resistance. Another way to heat the water stored inside the chamber is by conduction of heat through the walls thereof, placing a heater close to the external part of these walls. These heating systems are not shown in the figure. As in Fig. 4, the curved part (46) and (47) of the rotating tube (48) and the eductor are confined within the cover (58), which in this case is separated from the post (1). It is observed that, within the cover, the curved part of the rotating tube (48) and its end (40), connected to the Venturi (39), increase its diameter as far as possible to reduce the pressure losses. The outlet tube (36) protrudes from the plane (66) of the cover (58) directed towards the drag zone that is formed by the end (44) of the helical plate (4) and the bottom surface of the tub ( 59). In front of the exit of the eductor (36) and the drag zone, the cover (58) has a horizontal plate (77) bent upwardly welded (see the section cut of section AA '), which serves to make the jet of water and the dragged clothes are diverted upwards from the tub and the rotating impulse of the mass of water around the pole is broken, so that in the other spaces of the tub the currents are slow and the clothes do not get very entangled. - Fig. 6 is a mechanism that controls the slow rotation of a rotary washing system that employs a planetary speed reducer to transmit the rotation of the rotating tube (48) to the central post (1). The figure only shows an area of the central post (1) with the rotating tube (48), the planetary speed reducer (2) in the upper part and the control mechanism in the lower part, with a part of the flared cover ( 58). It can be seen that the mechanism consists first of a thick ring of rectangular section (87) or cam ring, concentric with the rotating tube (48) and connected by radial arms (49) to the inner wall of the central post (1) . The upper surface of this annular plate (87) or cam ring is divided into any convenient number of sections comprising, each of them, a split part or valley (89) followed by a slope that ends at a flat peak or crest (88), by way of cam tracks. In each section, four in this figure, a corresponding leg (86) with a rounded or sliding end is supported and slid on each of the tracks, which together support a second heavy ring (85) from above. This ring is mounted on the rotating tube (48) and carved into it by a longitudinal wedge (90) fixed to the tube itself, so that, with slight adjustments, the ring (85) can slide along the length of the tube but not rotate Regarding this one. The rotation of the second ring (85) and, therefore, the turning tube (48) is braked when the upper face of this ring is pressed against a braking plate (84) attached to a third ring (83) not rotary. The third ring (83) can be raised slightly to separate the braking surfaces and release the rotation of the second ring (85) and, consequently, the rotation of the rotating tube (48), the reducer (2) and the post ( one). For this purpose, this third ring has in its upper part an ear (82) articulated at the end of a lever (91), which raises the ring by turning at its other end on a pivot embedded in a bar (92) which, passing through the free space of the reducer (2), it is fixed to the support (80) of the axes of the reducer; so that this arrangement prevents, on the other hand, the rotation of the ring (83). To brake or release the tube rotation, allowing the third ring to press on the second or separating them, the lever moves vertically by means of a rod (93) articulated in the middle part of the lever and operated by means of springs and any mechanical or electromagnetic control system.

By means of the reducer and this mechanism, the cycle of the slow rotation of the rotating tube (48), coordinated with the rotation of the pole (1) and its helical plate, is carried out by the frequency of operation of the rod (93) and by the relative rotation between the rotating tube (48) and the cam ring (87) which rotates, together with the post, slower than the tube. During this relative rotation, the second ring (85) reaches its legs (86) on the high tracks of the cam and is pressed against the plate (84) of the third ring (83), slowing its rotation and the assembly. The braking lasts until the rod (93) lifts the third ring a moment to release the rotation again, which, by continuing, causes the legs of the second ring to fall on the lower track of the cam, avoiding braking until The aforementioned relative rotation returns them to the braking position. The ratio of the speed reducer (2), the frequency of the brake pauses and the cyclic position of the exit tube of the eductor with respect to the drag zone, should be such that they allow the leisurely transit of all clothing through the tub, without tending to get too tangled up. - Fig. 7 is basically similar to the rotary washing system of Fig. 5, except that the connection to the system is below the tubs (7) and (14), connecting the feeding tube (8) to a passage hole (103) in the center of the bottom of the centrifuge housing (23). A short section of flexible hose (102) whose upper end joins a first short and rigid tube (101) is fixed vertically, as a continuation of the feed tube (8), following these two Loosely housed inside the drain tube (61) of the centrifuge turbine. This first rigid tube (101) is introduced a certain distance into a second tube (100) attached to the center of the bottom of the internal tub (14) and which, through it, rises inside the tub to a height a little above of the floating level (29) preset of the same tub. This arrangement serves so that, without interrupting the continuity of the feeding conduit, the second tube (100) and the tub can rotate on the first tube (101) and, at the same time, move with it laterally in any direction due to the flexibility of the hose, allowing the rotation of the floating tub around any virtual axis during centrifugation.

A third tube or rotating tube (48), equivalent to the tube (48) of Fig. 5, is introduced into the second tube (100) by the upper part thereof, until smooth shoes (99) in the form of rings , which have each of the two tubes, seat one on the other to support the weight and rotation of the third tube on the second.

The previous tubes are introduced into each other with a fine adjustment, as a bearing, to allow free rotation between them and to form, together with the initial hose, the conduit to feed the rotary washing system as a continuation, with equal large diameter of the feeding tube (8).

In Fig. 7 it is seen that the upper end of the rotating tube (48) ends and ends inside a closed chamber (97) in the form of a dome or wide double-walled bell so that the tube (48), opening Gradually its diameter is connected to the inner cusp of the bell, which, centrally surrounding the tube, extends and unfolds to the bottom of the tub. On the mouth of the rotating tube (48) there is a conical appendage (98) that, with the vertex directed downwards, serves as a deflector so that the flow coming out of the mouth of the tube (48) is diverted 180 degrees towards the periphery and the bottom of the double bell, where the same bottom and the two walls of the chamber (97) extend and converge (see section AA section) so that they are molded into a circular outlet (107), horizontal and tangential that connects with the conical and gradual entry of a horizontal, curved and large diameter tube (40), paired to the bottom of the bell. As in Fig. 5, the tube (40) is connected to the venturi (39) of the eductor, so that they remain inside the cover (58) which is a radial extension of the flared chamber and only the tube (36 ) The exit of the eductor protrudes through a hole in a vertical and radial plane (66) in which the cover ends, directing the discharge of the water jet and steam bubbles towards the drag zone formed by the surface (44) of the helical plate (4) and the bottom of the tub (14). In front of the drag zone, an upwardly curved plate (77) is fixed to the chamber (97), with the same function described in Fig. 5. The rotating coupling of the tube (48) with the second tube (100) and the discharge of the water jet, perpendicular and at a certain distance from the center, by the tube (36) of the eductor outlet produces the pair of forces by jet reaction that rotates the washing system, as already described. Due to the large section of the flared chamber (97), the losses due to the change of direction of the flow within it are minimal.

So that the suction of the eductor is fed by the steam chamber (57), turning both with the system, it is housed inside the central post (1) such that the same connecting tube (38) of the steam is used for joining the center of the bottom of the steam chamber with the center of the dome of the flared chamber (97), to rotate that. The upper end (68) of the connection tube (38) is inside the steam chamber to suck it and its lower end (104), welded to the dome, continues its connection to the suction (37) of the eductor. In the upper part of the steam chamber (57) a shaft (105) is welded that moves the gear

(79) central of a planetary speed reducer (2), which transmits the rotation of the chamber to the central post (1). To transmit the torque of the drive shaft (105) it is necessary that the shafts of the other intermediate gears (96) be fixedly supported with respect to the system; but, on the other hand, the entire rotary washing system must be able to move in any lateral direction as the internal tub moves in the centrifuge. On the reducer (2) a round plate (80) is placed that supports such axes and is connected, above, to another upper plate (95) fixed to the structure (94) of the washing machine by means of a flexible tube (106) that it supports the torsion, in order to allow, without turning, the lateral displacement of the support plate together with the rotary system. In addition, the plate (80) records the rotation of the upper end of the drive shaft (105) in a central hub and, in its periphery, the rotation of the central post (1). The electrical supply, which in this figure appears inside the flexible tube (106), to the resistance (56) of the steam chamber is detailed in Fig. 8.

- Fig. 8 is an enlargement of the upper part of the central post (1) of Fig. 7 and shows two more variants of the system that allows lateral displacement of the support of the axes of the speed reducer (2). As in the previous figure, these variants have a round plate (80) that supports the shafts of the gears (96) of the reducer and also records the rotation of the drive shaft (105) and the central post (1).

Before continuing, Fig. 8 is used to describe the power supply to the resistance (56) of the steam chamber (57) (Fig. 7). The support plate (80) extends upwards in a box (108) within which two electrically insulated copper or brass rings (109) are mounted, at the end of the drive shaft (105) attached to the steam chamber. Each ring (109) is connected to a terminal of the resistance (56) by means of cables that run, sealed, within an axial hollow (not illustrated) in the same drive shaft (105) until the resistance (see Fig. 7 ). The electrical energy is fed by the brushes (110) that slide on the rings (109) during the rotation. On the case (108) of the support (80) of the axes a horizontal bushing (111) is fixed centrally within which a round bar (114) slides freely, at whose two ends they are welded, perpendicular to it and centered, two others round bars (112). Each of these two bars moves freely in turn within a set of bushings (113), one on each side of the bar, which are attached to a plate (95) fixed to the structure or cover (94) of The washing machine In summary, the mechanism consists in fixing the housing (108) of the support (80) to a first slide, which allows it to move along an axis, and this first slide is fixed to another similar slide that moves perpendicularly the first, so that the device, combining both perpendicular displacements, allows the support to move in any lateral direction, but not to rotate.

The lower right part of Fig. 8 shows a third variant of the system that holds the support plate (80) so that it can move laterally, combining a linear movement with another angular one. On the housing (108) of the support, a horizontal round bar (114) is inserted into a bushing (111) that can slide freely along the bar and rotate articulated to a vertical bolt (118) fixed in the center of The box; In addition, one end of the bar can rotate on another bushing (116) articulated in another vertical bolt (115) fixed to the structure (94) of the washing machine. To avoid the tendency to turn of the plate (80) and its box (108), some stops (117) are placed on the box (108), so that when the plate begins to rotate these stops block the rotation with the side of the bar (114).

• Fig. 9 is a washing machine equal to that of Fig. 7, except that the steam chamber (57) is fixed and can be placed outside the rotating washing system, which remains centered with the geometric axis of the washing machine without moving with the internal tub (14) during the spin cycle. As in Fig. 7, the feeding tube (8) is connected to the central passage hole (103) of the bottom of the centrifuge housing (23) and on this hole is fixed directly, on a shoe or base ring (120 ) of smooth surface, a first short tube (101) as a continuation of the feeding tube (8). In this case, the short tube (101) is introduced, with fine adjustment of the bearing block, into the third rotating tube (48) described in such Fig. 7, so that it can rotate freely on it supporting its shoe or smooth ring ( 99) lower on the base ring (120), to support the rotation and vertical thrust of the washing system. As a passageway for the rotating tube (48) to penetrate the internal tub (14) and finish inside it in the flared chamber (97), a second tube (100) is raised in the center of the bottom of the internal tub at a height greater than the level of flotation (29), to prevent water from entering the tub during the same flotation. The second tube (100), unlike the same tube of Ia Fig. 7, does not stick to the other two tubes and must be of such diameter that it leaves enough clearance between it and the rotating tube (48) and equal clearance with the inner wall (119) of the flared chamber (97), to that the tub (14) and the same second tube (100) can be moved laterally during centrifugation, without colliding with the chamber or with the rotating tube. The steam conduction between the fixed steam chamber (57) and the suction chamber (37) of the eductor is first carried out by means of a thin tube (68) that connects the upper area of the steam chamber with the inside of a box closed (108) inside the post (1). This box serves for the passage of steam to a second vertical thin tube (38) whose upper end penetrates, with slight adjustment, into a hub centered at the bottom of the box. Since, having its lower end (104) welded to the center of the dome of the flared chamber (97), the tube (38) must rotate on the bushing, at the entrance of the tube (38) it is placed, to avoid leaks, a rotating seal (71). The steam connection is completed by another thin tube or hose connected between the lower end (104) of the second thin tube and the suction chamber (37) of the eductor. In the second tube (38) the inlet gear (79) of the planetary reducer (2) is mounted and the support (80) of the axes thereof, integrated to the passage box (108), is fixed to the cover ( 94) or structure of a washing machine. In this way, the thin tube (38), in addition to driving the steam towards the suction of the eductor, serves as the driving axis of the speed reducer and as an axis that supports the upper part of the rotary washing system, which rotates centered and does not require of the mechanisms described in Fig. 8.

Fig. 9 also shows another system for setting the level of flotation (29) of the tub before centrifugation. The system consists of a closed container (126) that has a volume equal to the volume of the water that is between the two vats and the level of flotation (29), excluding the free volume within the centrifuge housing (23). Below the closed container (126) there is a small drain pump (62) that connects its inlet or suction (122) to the bottom of the main tub (7) through a valve (121) and its outlet or discharge (124 ) at the bottom of the closed container (126) through another valve (125). In addition to this first connection, another pair of tubes is added with their control valves (123) that connect the suction and discharge of the pump by exchanging the initial connection between them with the tub and the closed container respectively. Above, the container has a tube (64), with its control valve (127), which connects it to the outlet (65) of the main tub (7) at the flotation level (29), in addition to also having a drain pipe (63) to drain it to a high level. After the wash or rinse cycles and keeping the valves (123) closed, the drain pump (62) is started with the valves of the first connection, (121) and (125), open to dislodge, up to the level of the bottom of the main tub, the water in the tubs transferring it to the closed container (126); so that the excess water that exceeds the volume of the container is dislodged by the drain pipe (63) to the general drain and therefore only the volume (therefore) remains in the container (126) necessary to refill the space between the tubs at the flotation level. When the level of the extracted water becomes below the bottom of the internal tub (14), the check valves (27) at the bottom of the tub open and allow the remaining water to flow out of it. After emptying the tubs, the valves (121) and (125) of the initial connection are closed and the two valves (123) of the second connection are opened, so that the circulation of water between the container and the tub is reversed , in such a way that all the water stored in the container (126) is returned to the main tub so that the water level between the tubs reaches the predetermined floating level. When the water that is returning to the main tub (7) reaches the bottom level of the internal tub (14), the check valves of the tub close and prevent the entry of water into the tub, so that it remains floating to start spinning. With the valve (127) open, the excess water of the squeezed clothes, which leaves the internal tub, is drained by the outlet tube (64) on the side of the main tub into the closed container (126), being preserved the level of flotation (29).

• Fig. 10 is an extension, for clarity, of only the lower part of the tub (7) and the tub (14) with its central tube (100) and the balancing chamber (28), of Figs. 7 or 9. This chamber, as a variant of the chamber of Fig. 1, not only comprises the first annular part (28) of the side of the internal tub, but continues in a second part or cylindrical cavity (129) below of the base of this tub, as a double bottom crossed by the central tube (100). The annular part (28) of the chamber is divided by vertical plates (128) into a series of cells, open and communicated below with the second part of the chamber (129). These vertical cells are of two types, both distributed alternately around the side of the tub.

Each cell (133) of the first type is divided into two parts by means of a horizontal plate (130). The upper part is separated from the rest of the chamber by the plate, forming a compartment (131) that has a series of holes (10) in its inner wall and another series of holes (132) above the flotation level (29) , so as not to affect it, on its outer wall; Thus, the first type of cells serves to dislodge the flow of recirculating water from the internal tub (14). The lower part of these first cells (133) have the same function as the second type of cells. Filters can be placed inside the compartments (131).

The cells of the second type (134) lack holes and are directly connected to the double bottom of the tub (129), which stores, when the tub does not rotate, the fluid and heavy material that serves as a counterweight to balance. If the clothes are not distributed when turning the tub, the virtual axis of rotation, which passes through the center of gravity, will move a certain distance from the geometric axis of the tub to where the overweight is, so that the cells diametrically opposed to the overweight will remain with a turning radius greater than that of the cells near the overweight, causing the tendency, by centrifugal force, for the counterweight fluid to enter more in the opposite cells than in those near overweight. By increasing the balance of the tub by this distribution of the fluid and although, by the same token, the virtual axis moves to coincide with the geometric axis, the fluid trapped in each of the second cells (134) cannot be redistributed in the entire annular chamber as in Fig. 1, since the separator plates (128) of the cells are prevented, which allows to keep the initial balance.

- Fig. 11 shows only the bottom area of the main (7) and inner (14) tubs of Fig. 10, making the vertical scale larger with respect to the horizontal one in order to describe more clearly a mechanism that is add to the balancing chamber of Fig. 10 to improve its operation. This mechanism is housed in the second horizontal cylindrical part (129), crossed centrally by the tube (100), of the chamber (28) and works by obstructing the passage of the balancing fluid towards the cells of the second type (134) on the side of the overweight to compensate and allows this step towards the cells on the opposite side. Within the cylindrical cavity (129) of the balancing chamber a horizontal bar (135) is housed with a ring (138) in its center slightly adjusted to the diameter of the support tube (100), which serves as an axis so that the bar rotate with respect to the geometric center of the tub. At one end of the bar (135) a small counterweight (136) is mounted that can slide on the bar and whose slide towards the tip of the bar is limited by a spring (137), which works under compression with little force. Near the entrance of the cells, the other end of the bar joins the center of a slight vertical plate (139) that has a width, a curvature and a length that obstructs the passage of the fluid into some cells. If the weight of the clothes is asymmetrically distributed when the tub begins to rotate, the geometric axis of the tub or the passage tube (100) and, therefore, the rod (135) together with its central ring

(138) will rotate around the virtual axis of rotation that is displaced a certain distance from the geometric axis; Therefore, the centrifugal force applied to the counterweight (136) will cause the bar to rotate on its ring (138) until the counterweight is diametrically opposed to the virtual axis or to the overweight of the clothes, compressing the spring (137) as it travels towards at the end of the bar. In this position, the obstruction plate (139) covers the inlet of the balancing fluid to the cells of the second type (134) on the side where the overweight is, until the fluid entering the opposite cells compensates for the undistributed weight. As the weight within the tub is balanced, the virtual axis of rotation approaches the geometric axis and the centrifugal force on the counterweight (136) is canceled when both axes coincide; at the same time, the counterweight (136) stops compressing the spring (137) and travels, pushed by it, towards the center to its initial position; this shift causes, by the conservation of the angular momentum, that the counterweight (136), the bar (135) and the obstruction plate

(139) tend to increase their rotation speed by rotating faster than the tub, so that the position, relative to the cells, of the bar (135) and the plate (139) is indifferent and the rest of the fluid of balancing is evenly distributed in them.

- Fig. 12 is a mechanism that supports the internal tub during centrifugation, whether or not its virtual axis of rotation coincides with its geometric axis. It is considered that the speed of any point of the tub is equal to the speed of the point with respect to the geometric axis of the tub plus the speed of this axis with respect to the virtual axis.

This figure only shows the bottom of the tubs, main (7) and interior (14), and the new mechanism that supports the internal tub. The first part of the mechanism consists of a platform (146), centered under the internal tub (14), which has a central hole that is crossed, loosely, by a guide tube (145) that is centrally attached to the bottom of the tub. The rotation and the weight of the internal tub are supported by a series or circular row, concentric with the tub, of vertical wheels (143) with axes fixed to the platform and directed radially to the center of the tub. Another series of horizontal wheels (144), with their vertical axes also fixed to the platform, is distributed around the periphery of the hole of the platform, such that the wheels, supporting their rotation on the surface of the guide tube (145) , maintain and guide the concentric rotation of the internal tub (14) with respect to its geometric axis and the platform (146). The velocity of any point of the tub due to this rotation, concentric with the geometric axis of the tub, constitutes the first component of the absolute velocity of the same point.

The second part of the mechanism allows the platform to move freely in any lateral direction; for this, a series of supports that support it are placed under the platform. Each support consists of a horizontal bushing (147) with a round bar (141) of a certain length inside it, on which the bushing slides freely as a slide; The bushing can rotate transversely to its geometric axis on a vertical pivot (148) fixed to the platform below it, at the same time that the bar (141) can move angularly and horizontally by rotating on one of its welded ends to another articulated bushing. to a vertical pivot (142), anchored in a mamelon protruding from the bottom of the main tub (7). So that each of the bars (141) does not support in cantiliver the part of the weight of the tub that its sliding bushing (147) transmits, at the other end of each bar, opposite to the turning one, a wheel (140) is mounted ) vertical with its collinear axis to the bar and of such diameter that it rolls by drawing a circle resting on the bottom of the main tub (7), when the bar moves angularly. The combination of the linear movement of the sliding bushings (147) on the bars (141) and the angular displacement of these on one of its ends, gives freedom to the platform (146) to move in its horizontal plane, without turning, in any lateral direction, similar to the system described in the lower part of Fig. 8.

Another way of supporting the lateral displacement of the platform (146) is by subjecting it to a first sliding system that moves in a certain horizontal direction, this being the first system fastened in turn to a second sliding system, fixed to the main tub, which also moves horizontally, in a direction perpendicular to that of the first system, similar to the system illustrated in the upper part of Rg.8 .

The second part of the mechanism described in the last two paragraphs, in any of its two versions, allows the platform (146), supporting the internal tub and carried or pushed by it, to move horizontally drawing a circle equal to the circle that Trace the geometric axis of the tub around any virtual axis on which the tub rotates. This movement of the platform provides to any point of the tub the second component of the total speed, with which such point moves with respect to the virtual axis on which the tub rotates. - Fig. 13 is the same washing machine of Fig. 7, except that the mechanism of Fig.

12 to support the rotation of the internal tub (14). In addition, two centrifugal pumps coupled to the same submersible motor (150) are used, which are located within the centrifuge chamber (23) supported by a plate (152) hanging from the platform (146) of the same support mechanism of Fig. 12. One of the pumps (149) directly feeds the jets of the nozzles (17) that drive the Pelton special turbine, whose housing (25) is attached to the guide tube (145) at the bottom of the tub. The feeding tube (8), connected without valve to the discharge of the other pump (18), is introduced directly, with slight adjustment, into the passage tube (100) of the tub on which the tube rotates (48) of the same rotary washing system of Fig. 7. The suctions (19) of both pumps are directly submerged within the centrifuge chamber (23), from which the water is continuously recirculated to establish the two closed pumping circuits. The two centrifugal pumps operate with a different direction of rotation, in order to operate either the rotary washing system or the spinning system, it is enough to change the direction of rotation of the motor in its power cables (151), sealed and flexible, activating the operation of one system and deactivating that of the other without the need to use control valves. The motor with two counter-rotating pumps can be used in the other cases described here.

- Fig. 14 is a device for disintegrating the threads that releases the clothes and preventing them from obstructing the operation of the pump (18). The device is mounted inside a large diameter tube (159), sandwiched in the suction tube (19) by a conical tube (155). The device consists of a rotating blade (157) of several blades, mounted transversely on an extension (156) of the axis of the impeller of the pump, which cuts the threads that drags the water against another fixed blade (153), also of several blades , adjusting the pressure between them with the spring (158) at the end of the shaft. The rotating blades (157) also press against a lower plate (154) with multiple perforations that retain some threads to be crushed by the blades against the same plate. - Fig. 15 shows a two-tub washer with horizontal axial axis and front load, similar to the common ones of this type, in which the new concepts described in the previous figures are applied. As in those figures, the washing machine has a main tub (7) which, in this case, is a drum placed horizontally, with a chamfered or conical circular opening (161) on its front face and into which it is placed, centrally, another rotating horizontal drum or internal drum (14); This last drum has multiple perforations (10) and a series of internal parallel fins (5) welded along its side, in addition to a circular opening (168) chamfered in its front face, to introduce the clothes. To contain the water inside the drums, the front opening (161) of the main drum (7) is hermetically sealed by a conical periphery cover (162) with sealing gasket.

During washing or spinning, the internal drum (14) must be adapted to rotate inside the main drum (7); for this, the main drum (7) has, in the rear part and housed inwardly, a first wide and short tube (174) connected at its rear end to the center of the bottom of the drum, with free passage inside it; so that this first wide tube is, with slight adjustment, within a second wide tube (175) with its front end attached, externally, to the center of the bottom of the inner drum (14); in this way, the rotation of the internal drum (14) is supported by the rotation of the second wide tube (175), as a bearing, on the first wide tube (174), as a support axis.

On the other hand, the rotation of the internal drum (14) at its front end rests on a wheel (167), with conical periphery, which records in the round opening (168) chamfered with the drum and rotates with it. The axle (163) of the hub (165) of this wheel (167) rotates supported by a sealed bearing housing (164) and connected to the center of the cover (162) of the main drum (7), so that this cover pulls with it to the support wheel (167) when closing and opening, to put or take out the clothes. In order to have a pressure of adjustment of the register between the wheel (167) and the opening of the internal drum (14), the hub (165) of the wheel internally has a compression spring (166) which, supported on the inner end of the axle (163), pushes the hub so that the wheel is pressed on the opening of the drum.

Also in Fig. 15 the washing machine works with a closed pumping circuit that feeds energy to the washing system or the centrifuge system, connecting the discharge of the pump (18) to each of these two systems and its suction (19) on the lower side of the main drum (7). Because during centrifugation, as will be seen in the following figure, the drums move together with their connection pipes to the pump (18), these pipes have intercalated hoses (102) with sufficient flexibility to absorb such movements.

The washing is carried out, as in the previous cases, by a special fixed eductor fed by a tube (8), with control valve (13), connected to the discharge of the pump (18) and with the suction (37) of the eductor connected to a steam generating chamber (57), also fixed. The rear and central connection of the water flow for washing is carried out using an intermediate conical extension (172), with a deflector core (173) also conical in its center, to connect the feed tube (8) with the end rear of the first (174) wide tube of the main drum, such that this tube introduces the flow into the inner drum, passing through the wide tube (175) of the latter. The wide feeding tube (174) is connected and ends centrally, inside the internal drum, at the base of a horizontal cylindrical box (97) which serves to direct the flow towards the entrance of the eductor; in such a way that the large area of the section of these two components decreases the flow velocity and, therefore, friction losses due to changes in its direction. So that the water flow acquires a rotating impulse when entering the cylindrical box (97), it is placed inside the first wide tube (174), along this and to the bottom of the cylindrical box, a conduit or helical plate (160) that this movement is printed to flow. The flow that enters the cylindrical box with such movement is directed, through a volute (176) inside the box, towards a tangential outlet tube (40) on the periphery of the box. The outlet tube (40) ends at the Venturi (39) of the eductor, which directs its outlet (36) down and as tangentially as possible on the fins (5) of the lower side of the drum, so that the jet of water and bubbles, colliding with the fins, drives the rotation of the internal drum to pierce the clothes with the same fins, in which the bubbles cavitate. The connection between the steam chamber (57) and the suction chamber (37) of the eductor is made by a thin tube (38) that enters, through the wall of the first wide tube (174), towards the cylindrical box and the eductor within it.

To perform the centrifugal squeezing, a common Pelton turbine (170) is mounted on the second wide tube (175), which is driven by water jets that stick on its buckets (24) and are launched by nozzles (17) , with control valve (16), connected to the discharge of the pump (18); Therefore, in this way, the turbine drags the internal drum in rotation, containing the wet clothes for squeezing. In the front face of the buckets a small hole (169) is drilled in which a thin radial duct (171) ends that reaches the internal surface of the second wide tube (175), so that the rotation of this tube Lubricate with a small part of the same water that the nozzles throw on the buckets.

- Fig. 16 is a variant very similar to the horizontal washing machine of Fig. 15 and, as in this figure, the supply connection is through the central rear part of the main drum (7). In this case, the feeding tube (8) is connected directly to the Venturi (39), so that it, the outlet tube of reduced diameter (36) and the suction chamber (37), fed by the fixed steam chamber (57) through the tube (38), which make up the special eductor, are fixedly housed within the wide tube (174) attached to the center of the main drum (7) and which serves as the axis of the internal drum (14) which rotates together with a second wide tube (175), as a chumacera, on the first wide tube. The eductor outlet tube (36), which is as short as possible, protrudes slightly from the bottom of the inner drum (14) and bends slightly downward to direct the water jet and steam bubbles towards the bottom side of the drum . The end of the outlet tube (36) is covered with a disc (58) near the bottom of the inner drum and with a rounded surface to prevent the clothes from snagging with such an end.

In this case, the closed pumping circuits for washing and for centrifugal squeezing are separated, so that the hydraulic circuit that feeds the eductor is fed by a centrifugal pump (18) that operates with a direction of rotation contrary to that of The centrifugal pump (149) of the centrifugal squeezing circuit, both pumps being driven by the same motor with interchangeable rotation to activate one or the other pump. Suction (19) connected to the bottom of the main drum (7) is common to both pumps. This double pumping circuit has the purpose of operating each circuit alternately, in such a way that when operating the squeeze pump (149), it releases a jet of water, through its tube and discharge nozzle (17), on the buckets (24) of the Pelton turbine (170) attached to the internal drum to rotate it a little and perform the shoveling of the clothes by means of the internal blades (5) of the drum. Next, the rotation of the motor is changed to operate the washing pump (18) that feeds and activates the washing action of the eductor, the alternation of the two cycles in a slow manner being adequately repeated. • Fig. 17 shows the system that allows the internal drum (14) of Fig. 15 or 16 to rotate, during centrifugation, on the virtual axis that passes through its center of gravity. This system is similar to that described in Fig. 12 and is also based on a support, equivalent to the support (146) of this figure, which holds the tub or internal drum (14) rotating on its own geometric axis, while the support and drum move laterally around the virtual axis of rotation. In this case, the same main drum (7) has the function of said support since the internal drum rotates centered inside the main drum. The system that holds the main drum and allows it to move laterally, in any direction, consists of four ears (177) welded symmetrically to the sides of the main drum (7) at four points, two forward and two back. In each ear, a vertical bushing (147) is articulated by means of a horizontal pivot (148) that can rotate transversely to its geometric axis on such a pivot. A round vertical bar (141) whose upper end is articulated to a pivot (142) slides inside the bushing, which allows the bar to oscillate angularly, as a pendulum, on such end in a perpendicular plane to the axis of the drums. At the lower end of each bar (141) a spring (178) is fixed that supports the weight of the drums supporting the bushings (147) on the upper ends of the springs. To avoid that the forces of vertical movement of any previous system of supports of the drums are transmitted to the structure (94) of the washing machine in the form of vibration, this system in turn is subjected to another mechanism that consists in respectively fixing the two pivots (142) of the front oscillating bars (141), and also in the two rear pivots, to each of 5 the ends of a horizontal bar (179) in whose middle part a vertical rod (183) is raised. At the upper end of this rod (183), one end of each of two other bars (184) that are opposite, each one towards one side of the rod, and inclined downward at a certain angle, are rotatably articulated, such as normal position The other end of each of these two inclined bars is also articulated, in the same rotating manner, to a corresponding second horizontal push bar (182) running inside a bushing (180) fixed to the structure (94) of The washing machine The opposite direction of these last two horizontal push bars (182) is limited by springs (181). In this way, the force of the vertical movement up and down of the horizontal bar (179) is projected by the two inclined bars (184) in two horizontal and opposite forces on the bars (182) and the springs (181) of push on both sides of the stem; in addition to

15 that the small vertical projection of this force only produces opposite torque or torque in each fixed bushing (180), in such a way that the forces on the two springs and the torque on the two bushings are contrary to those of the other side and, therefore, the reactions on the structure of the washing machine are the same and opposite, so that the forces of vertical movement are transformed into internal forces on the structure, annulling them as producers of vibration. 0 To decrease the displacement of the virtual axis of rotation with respect to the geometric axis of the drum, as in Fig. 1, annular balancing chambers (28) are placed surrounding each end of the internal drum (14).

- Fig. 18 is a variant of Fig. 12 to avoid vibration in the centrifuge, similar to the system of Fig. 17 but applied to a vertical washing machine, so that the main tub can be moved laterally when held by a special support system, while the internal tub rotates on its geometric axis within the main one. The washing system is the same as in Fig. 7, except that the feeding tube (8) of the eductor enters directly into the main tub (7) fixed thereto and adjusted inside the central passage tube (100) of the Ia internal tub (14), so that, in addition, the tub can rotate on its same passage tube (100) coupled to the turbine (25) Pelton type and registering 0 its rotation in a hub (185) than the main tub (7) has in its center. Although not required, it is convenient for the internal tub to float so that its weight on the bushing is less.

The mechanism that during centrifugation allows the main tub to move in any lateral direction consists of a series of supports that support the tub below and around it, similar to the wheels that automatically line up in the direction of the shift to any side. In this case each support is composed of a horizontal flat bar (147) that at one of its ends is articulated to a vertical axis bearing or pivot (148) fixed to the bottom of the tub, which allows the bar to oscillate in a horizontal plane on such end. The flat bar, following the movement of the tub, slides linearly in either direction supported on the upper periphery of a vertical wheel (186) whose mount (141) can rotate horizontally on another vertical axis bearing (142), to that the wheel can be aligned at any time with the direction of the bar. Below the box that holds this last bearing (142), a vertical guide bar (188) is welded that runs inside a support bushing (187) fixed to the structure (94) of the washing machine. Between the bearing housing (142) and this support bushing (187) a compression spring (178) is placed, damping the shock absorber to support the weight of the assembly in its displacement around the virtual axis of rotation. The flat bar (147) must be of sufficient length to allow the displacement of the expected main tub (7) and so that the vertical wheel (186) always keeps a minimum horizontal distance with respect to the pivot or bearing (148) of the bar, in order that there is a pair that induces the alignment of the bar with the direction of movement of the tub at all times.

On the other hand, the connecting pipes, (8) (17) and (19), between the tubs and the pumps, (18) (149), have, as in Fig. 17, interleaved sections of flexible hoses ( 102) to allow lateral movement of the supply pipes together with the main tub (7) with respect to the pumps.

- Fig. 19 is a variant of the supports of Ia Rg. 18, so that this new support system (189) of the main tub (7) also serves to allow it to move laterally in any direction, while the internal tub (14) rotates on the shaft (194), which It records its rotation in the central hub (185) of the main tub and is driven by the turbine system (25) already described.

The new system consists of a series of supports (189) that support the main tub (7) distributed around its upper periphery. Basically, each support consists of a horizontal crossbar with two bars or shafts (191) joined at its center at 90 °, so that one of the shafts rotates at its ends on the sides of an upper U-shaped plate (190). "inverted welded to the upper part (187) of the structure of the washing machine through the fixed bar (193). The other crossed axis also rotates on the sides of another lower "U" shaped plate (192) from which hangs the upper end of a second bar (141) that loosely passes through a horizontal hole in an ear or plate (177) welded to the side of the main tub (7), so that a compression spring (178), fixed to the lower end of the bar, supports below the hole of the ear to it and the weight of the tub . In this way, the combination of the free oscillation or angular rotation in a plane, on one of the axes of the crosshead (191), of the lower "U" plate (192) together with the bar (141) and the oscillation or angular rotation of these on the other axis of the crosshead, in the other plane perpendicular to the First, it allows the bar (141) to oscillate angularly in any direction with respect to the support bar (193) of the crosshead, holding the tub in any limited lateral displacement thereof. This system is similar, with a different application, to a universal rotation transmission joint between two non-aligned shafts such as bars (141) and (193). A variant, not shown in the figure, consists in welding the upper end of the bar

(141), which holds the tub, to a sphere seated on a spherical surface of the structure (187), in the manner of a ball joint that would allow it to oscillate in any direction in which the tub moves.

- Fig. 20 is a vertical washing machine in which, as in Fig. 3, the eductor and its steam chamber (57) are fixed inside the central post, and the inlet of the feeding tube (8) is by Ia top of the post. In addition, it uses the support system (189) of the main tub (7) of Fig. 19, so that the internal tub (14) can be centered within that rotating on its geometric axis (194) inside the central hub ( 185); thanks to this and the flexible hose sections (102), the connections of the pipes (8), (17) and (19) can be fixed to the main tub, so that the washing machine can use the rotary washing system described right away.

In Fig. 20, the feeding tube (8), fixed to the main tub (7), penetrates deeply above the central post (1), fixed in turn to the feeding tube, where it is connected with the Venturi (39) of the eductor, so that the outlet tube (36) of the latter is as close as possible to the bottom of the inner tub (14). By means of a rotating coupling, with its support shoe (52) and turntable (50) as already described, the outlet tube (36) of the eductor is articulated with a rotating tube (48) that is short, of the same diameter and is folded a few degrees with respect to the vertical. The possibility that the rotating tube (48) is as short as possible and that its bending is small, allows for minimal friction losses in this, compared to the same tube of Fig. 3. The suction of the eductor is fed directly, through the tube (38), by the steam chamber (57) and the electrical resistance within it is also fed directly.

The fixed central post (1) has two helical plates (4) 180 ° separated from each other and, on the other hand, the bottom (45) of the internal tub (14) is rounded from the center towards the periphery, a way of a half toroid curve, so that in the center of the bottom a conical elevation (197) is raised close to the end of the rotating tube (48); in this way, drag zones are formed between the surfaces (44) of the ends of the helical plates (4) and the curved surface (45) of the bottom of the internal tub (14). The exit of the rotating tube (48) is tangential to the curvature of the cusp of the elevation (197) and placed between this curvature and a small conical deflector (196) attached around the lower end of the central post (1). In this way, the jet of water and bubbles discharged by the rotating tube (48) drags the clothes that are in such drag areas, going towards the periphery of the tub where the current and the clothes, guided by the curvature of the bottom of the tub, rise along the side of the tubs to the top of these, to return back to the bottom through the center of the same guided tubs by the helical plates (4) again towards the drag zones, to be repeatedly driven by the jet leaving the eductor. In the lower part of Fig. 20 the amplified detail (195), indicated in the upper part with the same number (195), of the area of the short rotating tube (48) is shown. In this part the system that rotates the rotating tube (48) is observed so that the jet leaving it is recommended the entire peripheral drag zone of the tub.

The system consists primarily of a small, low speed motor (199), mounted vertically on a plate (198) inside the central post (1). The axis of this motor is coupled by a small pinion gear (200) with the gear-shaped periphery of the plate (50) of the rotating coupling of the tubes, so that this plate also functions as driven gear to rotate the rotating tube .

- Fig. 21 is the same as Fig. 20, except that the connection of the feeding tube is carried out by the lower part of the tubs. The feeding tube (8) is introduced below the central part of the box (23) of the Pelton turbine (25) and ends at the Venturi (39), so that it, the suction chamber (37) and The outlet tube (36) of the special eductor is housed inside a tube (100) whose upper end is welded to the center of the bottom of the inner tub (14), in addition to being attached to the Pelton turbine (25). This tube (100), in addition to being the passageway of the eductor to the internal tub, also serves as the axis of rotation of the latter and of the turbine on the central hub (185) of the main tub, by

Io that its outer diameter fits such a bushing. Because the eductor is fixed, the steam generating chamber (57) is also fixed and feeds steam to the eductor directly through the tube (38).

To discharge the jet of the eductor into the internal tub, the rotating tube (48) is coupled, as already described, to the outlet tube (36) of the eductor, such that the end of the rotating tube protrudes slightly from the bottom of the internal tub through the passage tube and the necessary curve to radially discharge the jet towards the periphery of the tub is curved; in this way, the jet pushes the clothes that are in the drag zone, between the bottom (45) of the tub and the helical plate (44), towards the periphery and upwards of the tub. The length and the curved end of the rotating tube (48) are as small as possible to reduce the pressure losses in it, so it is convenient that the eductor is inserted into the shaft or passage tube (100) as high as possible .

The rotary washing system is completed by turning the internal tub (14) in small pauses together with the central post (1) and its helical plates (4), driven by the Pelton turbine; for this, the lower end of the post is attached to the bottom of the tub by thin legs (202) so that the jet that throws the rotating tube (48) is allowed to pass. Inside the central pole (1) it there is a cylindrical box (80), centrally attached to the structure (94) of the main tub (7), where a motor with speed reducer (199) is housed, which, by means of its centered axis (201) attached to the rotating tube (48), slowly rotates it so that the radially discharging jet runs along the entire periphery of the tub. In this way, during the washing cycle, the operation of the washing pump (18) can be alternated with that of the centrifugal pump (149) so that it activates the rotation of the Pelton turbine intermittently, in such a way that the slow rotation of the helical plates be combined with the rotation of the rotating tube (48) to facilitate the circulation of the clothes.

The lower part of Fig. 21 shows with the number (195) the same area framed by the dotted circle in the figure above, to show that a planetary reducer (2) can be added, as in Figures 5 and 7. between the central post (1) and the shaft (201) that moves the rotating tube, so that the post transmits its rotation to the rotating tube, without the need to use a motor with reducer (199) to rotate the tube.

It is to be noted that the method of Fig. 21 for rotating the central post together with the internal tub, centrally attached to the bottom thereof by two or three legs, can also be applied to the system of Fig. 20, also activating the Spin circuit alternately and in short breaks during the wash cycle.

- Fig. 22 represents an industrial washing machine for large quantities of clothing, which uses the principles of recirculating pumping and the discharge produced by a special educator (as described in Fig. 2) of low-pressure steam bubbles that implode in the breast of water and clothes, as already described in previous figures.

In this Fig. 22 it is observed that the washing tub (7) of this new industrial washing machine consists of a channel in the form of a closed rectangular path, of sufficient length and with both circular ends for the easy transit of water and clothes through of these. A series of special eductors such as that of Fig. 2, each consisting of a venturi (39), a discharge tube (36) without diffuser and a steam suction chamber (37) fed by the tube (38) from a steam generator or closed vessel (57) with water heated by a heater (56), discharges water jets and low pressure steam bubbles into the channel. These educators are placed in such a way along the channel that they impel the transit of the water and the clothes inside the channel in a closed trajectory around this one, allowing the cleaning action of the cavitation of the bubbles on the clothes.

Each Venturi of the series of special eductors is fed by the discharge tube (8) of a closed circuit pumping system whose suction tube (19) of the pump (18) is connected to the bottom of the channel through a filter (203). Along the internal sides of the canal, a series of inclined fins (204) are placed so that they cause the clothes to go through changing its relative position inside the tub.

- Fig. 23, as a continuation of Fig. 22, is the roller squeezing and rinsing system of the laundry washed in the washing machine of Fig. 22. This system consists primarily of a perforated conveyor belt (207) placed by above the straight part of the channel that forms the wash tub (7); said band is formed by two sections or parts, so that the structure (205) between two guide rollers (206) of the initial section of the band can be angularly turned downwards and the other part remains horizontal above the tub. After the washing in the tub (7) of Fig. 21, the structure (205) of the initial part of the band, turning angularly, is introduced slowly and gradually inclined into the tub (7) to the bottom, while water and clothes continue to circulate therein. The perforations of the conveyor belt (207) allow the water to continue to circulate while the belt retains the clothes and elevates it to the final and horizontal section of the belt that transports it to its end where it throws on another lower belt (208) that Ia leads to be introduced between the same band, resting on its guide roller (210), and another squeezing roller (209) pressed on the band, to squeeze the clothes by pressure. The clothes squeezed between the band (208) or the roller (210) and the roller (209) are poured into another tub (211), similar to the washing one, in which the clothes are rinsed by a recirculating pumping circuit of the water comprising the pump (18), the suction (19) and the discharge (8) with the nozzle (36).

- Fig. 24 is another version of the industrial washing machine that uses the same washing and spinning systems described above to carry out its work. The main tub (7) is formed by a closed path channel in a circle of sufficient size, such that the internal wall of the channel forms a central cylinder (219) of large diameter for the easy circulation of the clothes around it . The inner tub (14), as in previous figures, serves to centrifuge the clothes, has the same shape as the main one (7) and is housed inside it with a certain separation between them. For the spin cycle, in the upper part of the cylindrical body (219) a vertical motor (218) is fixed centrally whose axis, directed upwards, transmits its rotation to the internal tub (14) by means of a copy (215) that holds , by means of arms (216), to the upper part of the inner wall of the inner tub. On the other hand, the main tub (7) is supported, around its upper periphery, by a series of supports (189) equal to those of Fig. 19 which allow it to move in any lateral direction, while the internal tub rotates, on its geometric axis, driven by the vertical motor (218), as already described. To allow the free displacement of the main tub (7) with respect to the pipes of the pumping system, the pipes connected to the tub have interleaved sections of flexible hoses (102), as indicated in Figs. 17 and 18.

Washing by means of cavitation occurs, as already mentioned, by means of a series of special eductors whose suction is connected (38) to a steam generator (57), so that they are fed by a recirculating pumping system of the tub water, connecting the pump discharge (8) (18) to the special eductors and the suction of this one (19) to the filter (203) at the bottom of the main tub ( 7). The educators direct their discharge jets (36) into the tubs in the appropriate direction and from the top of these. The feeding tubes of the eductors have a flexible part (217) to be able to change the direction of the jet of the eductors during washing and to remove the eductors before removing the basket described in the following paragraph.

Inside the inner tub there is a basket (212) with the same profile or shape of the inner tub, except that it does not have the outer wall and holds a conical body (213), hollow and central, which in a detachable and Easy registration is coupled to an equally conical extension of the copy (215) of the centrifuge motor, so that the basket rotates linked to the internal tub in the centrifuge. The upper part of the conical body (213) has a clamp (214) that is used to lift the basket with a crane and remove the laundry already washed.

- Fig. 25 is a variant of the rotary washing system, similar to that of Fig. 9, except that in this figure the spinning system in the centrifuge is the same as that described in Figs. 19 and 21, with the special supports (189) of the main tub (7), the bushing (185) for the centered rotation of the inner tub (14) and the flexible hoses (102) intercalated in the connections of the pipes. The steam supply to the eductors without diffuser (221) is equal to that described in Fig. 9, where the steam generated in the fixed chamber (57) is conducted by the fixed tube (68) to the closed box (108) ), in which the steam is transferred to the vertical rotating portion of the central tube (38) that conducts the steam. In addition, in this case, the rotating tube (38) also serves as the driving axis of two planetary reducers (2) and (225) that move the hollow central post which is divided into two parts. The upper part of the post (224) rotates, driven by the upper reducer (2), in a single direction such that the helical plate (4) attached to this part pushes the clothes, as in previous figures, downwards. The lower part of the post (1) rotates in an oscillating manner by means of the special double planetary reducer (225) below, which operates so that the blades (12) attached to this part of the post oscillate in the same way as a common washing machine. The transfer of steam to the rotating tube (38) and the operation of the reducers driven by this tube will be described in detail in the following Fig. 26.

The feeding to this rotary washing system consists of a first fixed tube (101) of large diameter that penetrates centrally below the centrifuge housing (23) and conducts the flow from the discharge of the pump, similar to that of Fig. 9. This first tube is inserted into a second tube (100) that goes down, connected in its upper part to the center of the bottom of the internal tub (14), until the Pelton-type special turbine (25) is centrally supported. Above the second tube (100) a third tube or rotating tube (48) is introduced into it until it sits slightly by means of a shoe (99) on another shoe in the upper edge of the second tube. The first and the Third tube is inserted into the second with fine adjustment as a bearing.

The upper end of the rotating tube (48) gradually extends in a conical shape (220) until it empties, centrally and from below, into a closed cylindrical chamber (97) of low height, large diameter and housed in the bottom of the inner tub (14), instead of the flared chamber of Fig. 9 or 7. To better guide the flow outlet at the mouth of the rotating tube (48) on it, a conical appendage (98) is placed with the vertex down. The flow of water leaving the rotating tube (48) circulates radially within the cylindrical chamber (97) and gradually extends into the successive concentric sections of the chamber, which increase their area as they are away from the center. In this way, the flow velocity decreases in its transit through the conical and cylindrical part, so that the pressure losses due to the change in the flow direction are minimal. In addition, the flow is distributed within a series of radial sections of the chamber whose walls (222) converge in such a way (see section BB ') that each section guides the flow towards an outlet (107), circular and tangential, connected to the inlet tube (40) of the Venturi of a respective eductor without diffuser (221), placed in such a way in the perimeter of the chamber (97) that its short outlet tube (36), curved a little, discharges in a convenient direction and tangential water jets and steam bubbles that produce cavitation inside the clothes and drives, by reaction, the rotation of the cylindrical chamber on the rotating tube (48). Additionally, curved and radial plates (223) are added in each section to better guide the flow to the eductors.

The enlarged lower portion (226) of the vertical part of the steam conducting tube (38) is fixed centrally above the cylindrical chamber (97) so that the tube rotates with it and serves as the driving axis of the reducers, as already mentioned . On the other hand, the conduction of the steam towards the suction of the eductors (221) continues through other horizontal tubes (38) that leave radially from the lower portion (226) of the vertical part of the tube.

Since it is necessary for the operation of the planetary speed reducers (2) and (225) that the structure that supports the gears of these remain fixed, a bar (94) attached to the main tub (7) is welded to the box (108) of steam transfer and which is integrated into such structure.

- Fig. 26 shows in detail the system of the two planetary reducers (2) and (225), housed respectively in the upper part (224) and lower part (1) into which the central post is divided, and which produce the rotary movement of the helical plate (4) and the oscillatory movement of the blades (12) as described in Fig. 25. Both reducers are driven by the same vertical and central portion of the tube (38) that also conducts the steam to special educators, as was also briefly mentioned in such a previous figure.

As in Fig. 9, the support structure (80) of the gears of the reducers is integrated into the housing (108) that transfers the steam conducted by the fixed tube (68) to the upper rotating end of the tube (38), which enters the box through a through hole with mechanical seal (71) to prevent leaks. The box (108) is fastened (94) to the main tub to fix the entire structure (80).

Below the housing (108) is the planetary reducer (2) comprising the central gear (79) mounted on the drive tube (38), the intermediate gear (96) and the housing (244) of the peripheral external gear that , being attached to the upper part (224) of the central post, rotates it and its helical plate (4) in one direction only. The reducer rotates supported by bushings (239) on a round tubular part (227) of the structure (80).

The second reducer (225) that moves the lower part (1) of the central post is really a double reducer with two systems, aligned one above the other, of planetary gears (233) and (243); each of these systems has a central gear (235) mounted on a hollow shaft (241), so that these axes are independent of each other and rotate on aligned bushings (234). The upper end of the hollow shaft of the upper gear and the lower end of the lower gear shaft, protruding from their bushings, have radial bars (231). Within the two hollow shafts (241) runs a ratchet tube (240) with other bars or vertical bars (230) at each end so that they can be carved with the radial bars (231). The length of the ratchet tube (240) is such that, moving up or down, it is carved only with one of the two hollow shafts (241) of the central gears, leaving free the rotation of the other gear. Inside the ratchet tube (240) is the impeller tube (38) that rotates in only one direction and draws in its turn, by means of a wedge (237), to the ratchet tube (240), which in turn drives the central gear to the which is carved at that time. The cradle (236) in which the wedge is loosely housed is longer than this, so that the ratchet tube (240) has sufficient freedom to move up or down.

It is observed, in Fig. 26, that in the upper planetary gear system (233) the amount of intermediate gears (232) is a non number and in the lower system (243) the amount of these gears (242) is an even number; therefore, when the ratchet tube (240) is connected, which rotates in only one direction, one or the other system will cause one of them to rotate in the opposite direction to the other. In this way and as the peripheral gears of the two systems are connected to the lower post (1), this will oscillate at a certain frequency together with their blades (12), depending on whether the ratchet tube (240) is lowered or raised. The central post supports its oscillation in bushings (239) that rotate on the tube (227) of the structure (80) in the upper part and on the tube (38) in the lower part. The upper or lower vertical position of the ratchet tube (240) is controlled by means of a spring (238) and the action of a coil (229) on a magnetic core (228) mounted on the ratchet tube (240) or by a system of cams

- Fig. 27 is a variant of the two-tub industrial washing machine of Fig. 24 in combination with part of Fig. 25. In this new version, the main tub (7) has a flat bottom but configures a closed circular channel together with the shape of the internal tub (14); in addition, the central connection to the system for washing the feeding tube (8), or for discharging the pump (18) of the closed pumping circuit, it is vertically by the bottom of the main tub, so that it is connected with a rotating tube (48), introducing with light adjustment this one inside that one as a chumacera. In this case, the upper end of the rotating tube (48) is connected to the bottom of the internal tub (14) while, as in Fig. 25, it conically flows into a cylindrical chamber (97) which feeds a series of eductors (221) without a diffuser whose outlet tubes (36) direct their discharge over a drag zone, formed by curved plates (44) attached to the central body of the basket (212) and the bottom ( 45) of the same basket that serves to remove the washed clothes, as already described. The central cylindrical body (219), which constitutes the internal wall of the channel, is attached to the upper part of the cylindrical chamber (97) which also joins the bottom of the internal tub (14), integrating a single piece. The supports (189) of the main tub, the steam chamber (57) and the feeding tubes (38) of this to the eductors are the same as already described.

The rotation of the internal tub (14) in the centrifuge, which is supported by a shoe on a bushing (185) at the bottom of the main tub (7), is driven by a motor (218) whose vertical axis (245) axially penetrates into the vertical part of the feeding tube (8) through a hole made in the lower part of a 90 ° elbow of the same vertical part of the tube, sealing the shaft passage by means of a mechanical seal (71) . The upper end of this axis is attached to the inside of the widened lower end of the rotating tube (48) by narrow radial arms (246) that do not prevent the flow from passing, so that the motor (218), when operating, rotates to the tube together with the internal tub (14). During washing, the motor can rotate in the opposite direction to the circulation of the flow inside the tub, so that the drag zone moves against this flow and improves the transit of the clothes.

- Fig. 28 is a variant of the washing system in a vertical washing machine with two tubs (7) and (14), similar, in part, to the systems of Figures 9 and 25. As in Fig. 9, Ia discharge (8) of the pump (18) is connected, intercalating in this case a hose (102) between them, with a fixed central tube (101) that penetrates the centrifuge housing (23) and is anchored therein, to then cross the bottom of the inner tub (14) through a passage hole adjusted slightly to the same tube, which rises inside the tubs to near the top of these. At the upper end of this first tube (101) a second rotating tube (48) is introduced, with slight adjustment so that it can rotate inside the first, which is supported by a shoe (99) on another shoe at the end of the first tube . It is noted that this system does not use a hollow center post. To allow, in the centrifuge, the rotation centered on the hub (185) of the internal tub (14) within the main tub (7), for example, the same support system (189) of the main tub is used of figures 20 or 21.

The upper end of the rotating tube (48) flows into a closed chamber (97) in the form of a wide double-walled bell, in the same way and with the same function as the chamber similar shown and described in Fig. 9, except that, in this case, the periphery of the bottom of such chamber (97) is connected, by converging surfaces, to the entrances of a series of Venturi tubes (39) belonging to special eductors vertical without diffuser, whose outlet tubes (36) discharge down streams of water and steam bubbles that cavitate inside the clothes, 5 generating currents that drag the clothes and that, guided by the curved bottom (45) of The internal tub follows closed paths in vertical planes from the center to the side of the tub and all around it. It is observed in the figure that the series of eductors (39) slightly deviate from the vertical the same angle, so that the small horizontal component of the reaction of the jets that leave the outlet tubes (36) drive, over the rotating tube (48), the rotation of the chamber and the eductors around the tub.

Additionally, to assist the transit of the clothes inside the internal tub (14), radial blades (12) are fixed at the bottom of the tub that rotate with the tub when the pump (149) that feeds (17) is activated. jets that drive the Pelton turbine (25) of the internal tub in the spin cycle, as already described. This action is carried out in short periods during washing,

15 alternately with the operation of the pump (18) of the hydraulic circuit of the same wash; so that, in these short periods, the clothes that are at the bottom of the tub are driven by the rotation of the blades (12) towards the periphery, pushing and causing the movement of all the clothes within the currents produced by The educators

Finally, the feeding of the steam to the eductors is carried out in a similar way to that described 0 in Figure 9. On the center of the dome of the flared chamber (97) a closed box (108) is fixed for the distribution of the steam by means of a series of tubes (38), connected to the interior of the same box, and which lead the steam to each of the different educators suctions in which the flared chamber (97) ends. In turn, the closed distribution box (108) is fed by a tube (68) that penetrates the box, from above, through a hub centered and adjusted to the tube, so that the box can rotate on the tube (68) that conducts the steam from the fixed steam chamber (57). The inlet tube (68) is sealed by a mechanical seal (71).

0

Claims

REI VINDICA CIONES:

1. - A machine for washing, rinsing and squeezing clothes into a main tub containing another internal tub with holes for the passage of water flow to the main tub; This is characterized in that: the tubs are connected in series with a closed hydraulic pumping circuit consisting of a pump that continuously takes the water inside the tubs and the discharge, through a feeding tube, back into them, to produce the energy of the recirculating water flow that moves the systems; The discharge of the pump is connected, by means of control valves, either to the washing system or to the centrifugal squeezing system to activate any of the two systems or, optionally, a centrifugal pump is used for the hydraulic washing circuit and another for the hydraulic spin circuit, each of which operates with a different direction of rotation and is driven by the same motor that has a rotation change to activate one or the other pump; First, the closed pumping circuit feeds and activates the washing system consisting of a special eductor without a diffuser whose suction is connected to a low pressure steam generator; This generator is a closed steam chamber in which a heater heats water, directly or indirectly, so that the eductor discharges, in a certain suitable direction within the wash tub, a water jet with steam bubbles that cavitate in the breast of the laundry to be washed; Within the wash tubs there is a drag area of the clothes, or deflector space of the flow, limited by two separate surfaces a certain distance from each other, warped against and converging to a certain degree, in such a way that the jet of water and steam that leaves through the discharge of the eductor directed towards such area, in the direction of the convergence, produces a positive thrust on the clothes in this area, so that the same goes traveling through such space; In addition, the machine has a rotary system of washing, movement and circulation of the clothes inside the tubs that is activated by the flow of water from the closed pumping circuit and is composed of a wide tube or large diameter hollow post centrally housed inside of the tubs and called hollow center post; this post has wide helical plates welded around it and all along; The rotation of the hollow central post, which can be continuously or slowly controlled by means of a special mechanism, is produced, through a direct coupling or a planetary speed reducer, by a motor shaft centered with the post and driven by a axial flow turbine or by a rotating tube, also as a centered motor shaft, which drives the water flow of the system by being connected, by means of a rotating coupling between both tubes, to the end of the fixed feeding tube at the same time which can rotate on it driven by a jet reaction; the fixed feeding tube is introduced centrally through the upper or lower part of the tubs; To produce the impulse of the rotating tube, the system is used to make two bends at 90 ° at its free end that place at the exit of the tube in perpendicular position and at a certain distance from the geometric axis or rotation of the tube itself, in such a way that the jet of water leaving the tube causes, by reaction, the pair of forces that produce the rotation, at the same time as the jet it is projected in the direction of the drag zone; This drag zone is formed with the lower end of the helical plate as an upper surface and, as a lower surface, the same surface of the bottom of the tub or the surface of a horizontal plate welded to a round cover, within which it is located. The bent part of the rotating tube whose end end protrudes from the cover by a radial plane that interrupts its shape, this cover being separated or integrated to the central post; a deflector plate is placed in front of the drag zone that deflects the flow of water a little upwards and to the periphery of the tub; As an option to move the clothes, two central planetary reducers are used, aligned and with different direction of rotation, coupled to the central hollow post that has radial blades in its lower part, so that a centered tube or shaft, which rotates in a single direction, it alternately drives through a certain ratchet system to the central gear of each reducer to produce an oscillatory movement on the pole and blades; the eductor is connected in series with the feeding tube or with the swivel, before or after the swivel coupling between them, and is part of the water conduction; The steam chamber and the eductor can be fixed or rotated together with the rotary system; if the steam chamber is fixed and the eductor rotates with the rotary system, the steam conduction between the steam chamber and the eductor suction is carried out by means of a first section of fixed tube coming from the steam chamber and connected to a second section that rotates feeding the eductor suction, whereby a rotating or mechanical seal inserted between both tubes is used; if the steam chamber rotates together with the rotary washing system, the heating of the water inside it is carried out indirectly by an electric transformer whose primary is fixed and the secondary rotates with the system feeding, at the same time, an electrical resistance inside of the camera; or it is also carried out using a heater close to the walls of the chamber or the system of a pair of insulated metal rings that, electrically powered by brushes, are mounted on an axis that rotates together with the steam chamber and is connected to the resistance by sealed cables; Additionally, the tubs have narrow helical plates on their internal sides to guide the transit of the clothes and there is a system at the entrance of the pump that disintegrates and grinds the threads and fluff that releases the clothes; The squeezing system of the clothes by centrifugation in the internal tub consists in producing the rotation of the latter by means of a special horizontal Pelton type turbine, attached to the center of the bottom of the tub, which is driven by the jets of water supplied by a series of peripheral nozzles connected to the discharge of the pump of the corresponding hydraulic circuit, so that the turbine is housed inside a cylindrical box or housing, called a centrifuge chamber and is an extension of the bottom of the main tub; This Pelton turbine consists of a vertical cylindrical housing in which they are introduced in the middle and a distributed series of bucket-shaped radial buckets are fixed around its side; These buckets direct their internal exit edges, inclined a little downwards, almost radially towards the center of the box, where it is connected with a vertical discharge tube through which water is dislodged from the jets that drive The turbine; so that the rotation of the internal tub is balanced, it is rotated while floating in the contained water, at a certain predetermined level, within the main tub, such that the internal tub rotates freely with respect to any virtual axis that passes through the center of gravity of the tub and the clothes; furthermore, a centered counterweight is placed under the tub to stabilize the flotation of the inner tub; The machine has a system for conditioning the flotation of the internal tub within the main one, which consists, after previously draining the water from the main tub, in gravity dislodging the water from the internal tub through check valves, to then refill the space between the vats with water at the predetermined level of flotation; Another system to cause the internal tub to rotate on any virtual axis that passes through its center of gravity is using special supports that support the tub allowing it to move freely, in any lateral direction or around the virtual axis, at the same time as the The same tub rotates on its geometric axis, in such a way that the result of both movements is the rotation of the tub on the virtual axis, without resting on a rigid or fixed axis; the pipes have interleaved stretches of flexible hoses so as not to limit that the set of tubs and the connections to these of the same pipes can move laterally; to bring the virtual axis of rotation closer to the geometric axis of the internal tub, it has a closed peripheral balancing chamber that stores a certain amount of a heavy fluid; in this case, the balancing chamber is annular and forms the entire side of the internal tub, in such a constructed way that avoids the redistribution of the balancing fluid within it when approaching, when the balance increases, the virtual axis of rotation to the geometric axis of the same tub; The internal tub is only of the height necessary to contain the wet clothes, seated at its bottom before the centrifugation, and its side is housed within a widening that the main tub has for this purpose, with some space left over to contain the water in Ia which floats and turns the internal tub; The separation between the upper edge of the inner tub and the widening step of the main one is covered by means of an annular gate with an "L" shaped section, whose vertical part adjusts slightly to the diameter of the main tub and the part horizontal is supported on such upper edge by plates of friction resistant material; if the internal tub floats, it is damped in its oscillation when turning by anti-friction plates or bearings placed between the bottoms of the two tubs and between the lateral part of both; If a rotating tube is used and the internal tub does not have exit holes for flotation reasons, a third tub with multiple perforations is placed inside the internal tub, separated slightly from it, so that the water flow is drained by a vertical evacuation tube centered at the bottom of the internal tub and extending to near the bottom of the centrifuge chamber, where the suction tube mouth is of the bomb; The evacuation tube has a check valve that prevents the return of water inside the tub.

2. - A rotary washing system that employs a rotating tube coupled at one of its ends to another fixed flow feeding tube, so that the first tube rotates by a jet reaction and drives the rotation of the central post of the rotary system ; in accordance with clause No. 1, which is characterized in that the rotating coupling between these tubes consists in using the system of introducing the fixed feeding tube into the straight end of the rotating tube, with a fine adjustment between its diameters in a manner of chumacera; the axial displacement between both tubes is limited by a shoe, in the form of a ring with smooth surfaces, firmly mounted on the fixed tube and linked or imprisoned slightly between a pair of discs, flat rings or turntables, also with smooth surfaces, which are joined or linked to each other at its periphery, so that the lower plate attached to the end of the rotating tube and the upper one, crossed by the fixed tube, serves as a support for the rotation on the other side of the shoe; Another means used for this is to finely adjust, as a bearing, a bushing to the outer diameter of the rotating tube, gently pinching the bushing between its lateral faces by a lower shoe mounted on the rotating tube and an upper nut screwed to the free end of the same tube, so that the contact surfaces are smooth, this assembly is coupled to the fixed tube by screwing the outer diameter of the bearing hub to the enlarged inner diameter of the end of this fixed tube.

3. - A rotary washing system to move the clothes inside a two-tub machine and in which the hollow central pole rotates driven, through a planetary speed reducer, by an axial turbine propelled by the circulating water energy which generates a closed circuit pumping system, connected in series with the tubs; In addition, the pumping circuit activates a special eductor without a diffuser that launches water jets and steam bubbles inside the tubs for washing by cavitation; from the center of the internal tub a vertical evacuation tube comes down, with a check valve, which flows near the pump's suction tube; in accordance with the first clause; The rotary system of this machine is characterized in that in the center of the bottom of the internal tub, as a continuation of the vertical evacuation tube and housed inside the hollow central post, a second wide tube is raised until it ends in a planetary speed reducer in The upper part of the tubs; a vertical and central shaft that moves into the gearbox of the gearbox enters into this reducer, below and through a sealed bearing housing; the lower end of this central axis is coupled to the turbine, vertical and axial, which is below the level of the bottom of the inner tub and is housed in a widening of the tubes, as a case of the turbine; on the other hand, the output shaft of the speed reducer, which centrally protrudes above the same reducer, is welded to a cover of the upper end of the hollow central post, so that the upper area of the post is tightly closed; Additionally, the post has radial blades welded thereto near the bottom of the tub; The hollow post and the second wide tube inside it have, only in the part near the bottom of the tub, a series of holes for the passage of the water flow, in such a way that this flow is the load that moves the turbine, which is discharged by the vertical evacuation tube; The side of the inner tub lacks holes, except in the upper part above the level of flotation.

4. - A rotary washing system driven by the reaction of a jet of water and steam bubbles that launches a rotating tube on a drag zone; the bubbles are generated by a special fixed eductor intercalated in the feeding duct and whose suction is connected to a fixed steam chamber or housed inside the hollow center post or elsewhere; the system is fed by a closed pumping circuit, with vertical connection of the feeding tube by the upper central part of the tubs; according to clause No. 1; which is characterized by the fact that the feeding tube is connected directly to the Venturi of the eductor and this, or part of it, crosses and is housed centrally, sealing its entrance and exit, inside the steam chamber, in such a way that the chamber of i5> suction of the eductor can be connected directly with the interior of the steam chamber by means of a small tube that ends in the upper area of the latter; or the steam chamber can be fixed in any other place with a suitable tube connecting to the suction of the eductor; after its throat, the eductor's outlet tube, of reduced or small diameter, continues without diffuser or with the same diameter until it protrudes sufficiently from the bottom of the chamber to articulate, by means of a

20 rotating coupling, to a vertical rotating tube of equal small diameter which, following its bends, discharges the water and steam jet over the drag zone.

5. - A rotary washing system with loss reduction driven by the reaction of a water jet and steam bubbles that launches a rotating tube by jet reaction; the bubbles are produced by a special eductor sandwiched in the flow duct and whose suction is connected to

25 a fixed steam chamber housed inside the center post; the system is fed by a closed pumping circuit, with vertical connection of the feeding tube by the upper central part of the tubs; in accordance with clause No. 1; which is characterized in that the large diameter feeding tube fastened to the steam chamber by passing through it centrally, so that the end of this wide tube, protruding from the bottom of the steam chamber and by means of a rotating coupling,

30 articulates directly with the rotating tube of the same large diameter and whose end, after the bends, ends and connects with the venturi of the eductor without diffuser that directs its discharge towards a drag zone; and because the conduction of the steam towards the suction of the eductor is carried out, initially, by a fixed duct consisting of a first section of thin tube that sucks the steam into its chamber and then is introduced, through the wall and into below, within the section of the wide tube and fixed feed that passes through the steam chamber, to finish, finally, at the upper end of the bore of a vertical thick-walled bushing that is concentrically fixed within this feed tube; The other part of the duct is rotatable and consists of a second section of thin tube whose upper end is introduced, below and with slight adjustment as a bearing, into the bore of the vertical bushing to be able to rotate inside it, so that the same tube extends downwards until it enters centered on the rotating tube and then bends to exit through the wall of the latter and connect directly with the suction of the eductor; In order to avoid the steam leakage at the junction of the bushing and the second tube, there is a polished ring that is pressed, by means of a spring, against the lower face of the equally polished bushing, so that, so that the spring can exert such pressure, a short section of flexible hose is sandwiched in this second tube; instead of the tight ring and the hose section, a common mechanical seal is used in the joint of the bushing and the second thin tube.

6. - A rotary washing system with loss reduction driven by a jet reaction in a rotating vertical tube of large and articulated diameter, by means of a rotating coupling, to the feeding tube; the lower end of the rotating tube ends in an eductor without a diffuser that discharges the water jet with steam bubbles over a drag zone and has its suction connected to an indirectly heated steam chamber that rotates together with the rotary washing system; in accordance with clauses No. 1 and 5; which is characterized in that the rotating tube attached to the steam chamber being transferred centrally, so that the steam chamber is connected directly, by means of a thin tube, with the suction of the special eductor.

7. - A rotary system for washing a machine for washing clothes, whose rotation is produced and supported by the rotation of a large diameter centered tube that drives the flow and is driven by a jet reaction; the upper end of the rotating tube is connected to another special conduit through which the flow continues and changes its direction 180 ° increasing pressure losses to a minimum; such conduit ends in a special eductor whose suction is connected to a cylindrical steam chamber that is housed inside the central post and rotates together with the system, so that the eductor discharges, to a drag zone, a stream of water and bubbles low pressure steam in the perpendicular direction and at a certain distance from the central axis of rotation of the system; The system is fed by the discharge pipe of the pump of a closed circuit of pumping in series with the tubs; in accordance with clause 1, which is characterized by the fact that the feeding of the water flow is carried out by connecting the discharge tube of the pump with a through hole made in the center of the bottom of the centrifuge chamber, on which a short vertical section of hose of sufficient flexibility to move laterally in any direction is anchored; from above, the hose joins another short section of a first rigid tube that introduces a certain distance into the lower end of a second tube vertical which, together with the center of the bottom of the internal tub and passing this one, rises inside the tub at a height greater than the floatation level thereof; into the second tube, a third rotating tube or tube is inserted from above, which is seated by means of smooth stops in the upper edge thereof; The three tubes have a large diameter and the adjustment between them is a fine adjustment as a bearing, so that the corresponding tubes, one inside the other, can rotate between them with only small leaks of liquid by the union, at the same time that the flexible hose allows the lateral displacement of the tubes and the washing system together with the internal tub during any eccentric rotation thereof; above its settlement on the second tube, the rotating tube ends in a closed chamber in the form of a bell or double-wall dome and large section that, surrounding the tube, extends to the bottom of the tub, so that the end upper of the rotating tube or third tube, gradually increasing its diameter, flows into the chamber inside the cusp of its inner wall; The chamber has, above this mouth, an inverted conical appendage that has the function of diverting 180 ° towards the bottom of the chamber the flow of water leaving the rotating tube; the two walls of the double bell and the bottom of the latter gradually converge, near the bottom of the tub, to form the start of an outlet tube, conical and tangential to the perimeter of the bottom of the chamber, whose end end ends in the Venturi of the special eductor without diffuser that launches the flow jet directed towards the drag zone; The steam chamber feeds the suction of the eductor by means of a thin and centered tube that, starting from the upper inner zone of the chamber, crosses the bottom of the chamber and its lower end joins the dome of the flared chamber, continuing the connection from this end to the suction of the eductor through another conduit; in this way, the flared chamber draws the steam chamber in its turn when joined by such a thin tube; if a planetary speed reducer transmits this rotation to the central post, a central drive shaft of the reducer is raised above the steam chamber and, above the reducer, a non-rotating round plate records and supports the rotation by means of a hub in its center of this axis and, with other bushings, it supports the axles of the intermediate wheels of the reducer, in addition to registering on its periphery the rotation of the central post; this support plate is attached in its upper part to the cover or structure of the washing machine by means of a flexible sleeve or tube that allows lateral displacements and resists torsional stresses to prevent the rotation of the plate; The indirect power supply system is mounted on an extension of the drive shaft to the resistance of the steam chamber, this system being housed inside the flexible tube.

8. - A variant of the rotary washing system that has a rotating tube by jet fed reaction, by means of a closed pumping circuit, through a central passage hole located at the bottom of the main tub of a washing machine two tubs; this tube ends, inside the internal tub, in a double-walled flared chamber that flows into a special eductor with a steam chamber; in accordance with clause No. 7; Ia which is characterized by the rotary system wash rotates fixedly centered with the geometric axis of the main tub, for which a short section of vertical tube anchored over the central passage hole at the bottom of the centrifuge chamber or the main, as a continuation of the feeding tube, it is introduced into the rotating tube, with fine adjustment between the two as a chumacera, until the lower end of this rotating tube is supported with a smooth surface annular shoe on another equal shoe mounted on the base of the short inlet tube; in the center of the bottom of the inner tub, a wide passage tube is raised above the flotation level that serves to introduce into the same tub the rotating tube that ends, inside the inner tub, in the flared chamber; The diameters of this passage tube have sufficient clearance with respect to the rotating tube and the inner wall of the flared chamber, to prevent the passage tube from rubbing with the rotating tube or with the chamber during the lateral movement of the passage tube and the tub in the spin cycle; The steam chamber is fixed in any convenient place of the washing machine and its connection with the suction of the eductor begins with a first thin tube that connects the upper area of this steam chamber with the inside of a small closed passage box of the steam, housed in the upper part of the central post and fixed centrally to the structure of the washing machine; The steam conduction continues through a second tube, thin and vertical, which has its lower end welded to the center of the dome of the flared chamber, which rotates with it, and its upper end penetrates the steam passage box, of mode that records its rotation through a hub centered at the bottom of the same box; in addition, the entrance of the tube to the passage box is sealed by means of a rotating or mechanical seal; finally, the lower end of the vertical tube is connected, by means of a third tube or hose, with the suction of the eductor to complete the connection between it and the steam chamber; if a speed reducer is used, the input gear of the latter is mounted on the second thin conduit tube, so that it also serves as the drive shaft of the reducer.

9. - A variant of the lateral movement system, without turning, of the upper plate that supports the axes of a planetary speed reducer, transmitter of the rotation of the central axis driving the hollow post of a rotary washing system with lateral displacement during centrifugation, so that this support plate is articulated to a system that allows free lateral movement but prevents rotation; according to clause 7; which is characterized by the use of the system of two slides that run perpendicular to each other, for which in the upper part of the cylindrical housing of the support plate a horizontal bushing is fixed, within which a bar slides freely round joined perpendicularly to other bars that run inside other bushings perpendicular to the first; the second bushings are attached to a plate fixed to the structure of the washing machine, in such a way that the cylindrical box and, therefore, the support plate of the reducer axes, carried by the rotary system, can be moved, without turning , in any lateral direction combining both displacements; or because, as an option, it uses the system of a slide on a bar that rotates on one of its ends; system consisting of a horizontal bushing that rotates, transversely to its geometric axis, on a vertical pivot placed in the upper part of the cylindrical housing and of a bar that can slide inside the bushing and rotate horizontally on one of its ends articulated to a pivot fixed to the structure of the washing machine; The rotation of the support plate is limited by stops placed on the box thereof on each side of the bar.

10. - A special control mechanism that slows or releases, slowly and at a certain frequency, the rotation of a rotary washing system that is driven by a central motor shaft that transmits its rotation to the hollow central post by means of a planetary reducer of speed; according to clause No. 1; which is characterized by the fact that such a mechanism consists of a first horizontal, thick and rectangular section ring, whose upper face is divided into several equal sections, each consisting of a valley or split plane followed by a slope that ends at a flat crest, as a cam track; centered inside the central hollow post and connected to the interior of the latter by arms, the first ring rotates together with the post and through its center passes the tube or drive shaft; on each section of the cam track one of the legs is supported and slid which, together, support the weight of a second ring aligned, above, with the first; the second ring is carved, by means of a longitudinal wedge with slight adjustment, to the axis or rotating tube that draws it in its rotation but allows it to rise or fall along the same axis, so that the second ring rotates, according to to the reduction ratio, with respect to the first cam ring or track and resting its legs on it, it is pushed at some point up by the cams, in such a way that it is locked by notches or friction surfaces against the lower face of a third non-rotating upper ring, braking the entire system; subsequently, with a lever and an actuator rod, the third ring is slightly raised to free the system and allow the latter and the second ring to continue its rotation, this second ring settling its legs on the low cam track and separating from the third ring, until both rings are locked again in the next high section of the cam track, repeating these pauses of braking and turning.

11. - A vertical rotary washing system, powered by a closed pumping circuit with reduced losses, which consists of a central post with a helical plate, a steam chamber and a special fixed eductor, whose outlet tube is coupled to a rotating tube that discharges a stream of water and steam bubbles over a drag zone; so that the connections of the pipes of the pumping circuit remain fixed with respect to the tubs during the lateral displacement of these in the centrifuge; in accordance with clause No. 1; Which is characterized by the fact that the feeding tube penetrates as deeply as possible, above, into the hollow central post where it is connected directly with the venturi of the eductor and the outlet tube thereof, in an upright position, is it connects with a rotating tube as short as possible and of a diameter equal to that of the outlet tube; The bottom of the internal tub is rounded, downwards, from the center towards the periphery, similar to the half curve of a toroid, and the rotating tube bends a few degrees with respect to the vertical, so that it is tangent to the curvature of the elevation center of the bottom of the tub and between this curvature and a conical deflector fixed around the lower end of the central post; The rotating tube is driven by a small low speed motor and insulated inside the fixed central post, so that the axis of this motor is coupled to the rotating coupling plate of the rotating tube, to rotate it.

12.- A vertical rotary washing system, powered by a closed pumping circuit with reduced losses, which consists of a hollow central post with a helical plate, a io steam chamber and a special fixed eductor, whose outlet tube it is coupled to a rotating tube that discharges a stream of water and steam bubbles over a drag zone; so that the connections of the pipes of the pumping circuit remain fixed with respect to the tubs during the lateral displacement of these in the centrifuge; The internal tub rotates, driven by a Pelton turbine, on its geometric axis within the main tub; in accordance with clause No. 1; which is characterized by Ia

The supply tube connection is through the lower central part of the internal tub through a passage tube, which passes through and fastened to the Pelton turbine housing, so that this passage tube ends centrally at the bottom of The internal tub; The feeding tube is connected directly to the Venturi of the special eductor, which is housed as close as possible to the upper end or end of the passage tube, so that the rotating tube of the eductor protrudes slightly from the bottom of the tub and is it curves a bit such that it radially discharges the water jet and steam bubbles inside the internal tub; on the other hand, the passage tube also serves, driven and connected to the Pelton turbine, of the axis of rotation of the internal tub on a central hub of the main tub; above the end of the rotating tube, the central post is attached to the bottom of the inner tub by means of two or three thin legs, so that this pole, together with the helical plates and the inner tub, is rotated in small pauses 5 driven by the Pelton turbine, alternated with the wash cycle; The rotation of the rotating tube can be carried out by means of a motor with a reducer coupled to it and enclosed in a box inside the post or by a planetary reducer coupled to the rotation of the post.

13. - A chamber for balancing the rotation of an internal tub which, within a main tub, squeezes clothes by centrifugation; This chamber forms the side of the internal tub, is closed, or annular, contains a heavy fluid and is constructed in such a way that it avoids the redistribution of the fluid within it, as the virtual axis of rotation approaches the geometric axis of the tub when the balance increases; on the other hand, the internal tub tends to rotate freely on the virtual axis that passes through its center of gravity, without relying on a rigid axis; in accordance with clause 1; Which is characterized in that the closed balancing chamber is composed of a first vertical and annular part, which forms all the side of the inner tub and is divided with vertical plates in a series of cells; The chamber is extended, below the bottom of the tub as a double bottom, in a second part of cylindrical shape, of low height and without divisions, within which the fluid material is stored that, when the tub rotates, penetrates through the lower part of the cells, distributed within each cell according to its distance from the virtual axis of rotation; Some of the vertical cells have a horizontal lower plate that separates them from the rest of the chamber, in addition to a series of holes in the wall that leads to the inside of the tub and, in the opposite wall, another series of holes that remain above of the level of flotation of the tub, so that through these holes the water flows from the inner tub; lint trap filters are placed inside this second type of cell; The second cylindrical part of the chamber contains a horizontal bar that can rotate in its middle part with respect to a collinear axis with the geometric axis of the tub; at one of the ends of this bar a slight vertical sheet is fixed close to the entrance of the vertical cells of the chamber, with dimensions and curvature such that the sheet can hinder the entry of the fluid into some of the cells; at the other end of the bar a counterweight is inserted that can slide towards the end by pressing a slight compression spring fixed on the tip of the bar.

14. - A system for conditioning the flotation, within the main tub and at a predetermined level, of the internal tub that, to centrifuge the clothes, rotates by means of a Pelton turbine that is driven by the water jets that launch nozzles connected to the discharge of the main pump of a closed pumping circuit, whose suction tube is centrally connected to the bottom of the centrifuge chamber; The internal tub has, centered on its bottom, a vertical evacuation tube with check valve that extends until it reaches very close and in front of the mouth of the pump suction tube; according to clause 1; which is characterized in that the side of the main tub has, at the height of the flotation level, a drain opening connected to the suction of a small auxiliary pump that discharges to the drain; In addition, under dynamic flow conditions, the net suction load of the main pump through the internal tub and its vertical evacuation tube is greater than the net suction load on the paths, with greater friction losses, of the spaces between the tubs and the evacuation ducts of the turbine towards the same suction of the pump; The control of the pumps makes the auxiliary pump work first to drain the tubs to the flotation level and then it operates together with the main pump.

15. - A system for conditioning the flotation, within the main tub and at a predetermined level, of the internal tub which, to spin the clothes spinning, is driven by means of a special Pelton turbine; The system consists of previously draining, by means of an auxiliary pump, the water at the level of the bottom of the main tub and by gravity dislodging the water from the inner tub through check valves at the bottom of the tub, and then refilling it with water the space between the tubs at the predetermined level of flotation; in accordance with clause 1; This system is characterized by the fact that the machine has separate a closed reserve container with a volume equal to the volume of water contained in the main tub when the internal tub floats within it at the predetermined level; The auxiliary pump has its discharge connected to the bottom of the container and above it a drain hose is connected to the general drain; an opening at the level of flotation on the side of the main tub is connected by a tube with valve to the upper part of the container; The entire system is connected, by means of control tubes and valves, in such a way that, after evacuating the water from the tubs to the bottom of the main tub through the reservoir container, the connections of the auxiliary pump are reversed. between this container and the tub, so that the waste water stored in the reserve container is returned to the main tub.

16. - A special support of a vertical internal tub that, within a main tub, squeezes clothes by centrifugation, such that this support allows the internal tub freely to move laterally around any virtual axis that passes through its center of gravity, while the tub rotates on its geometric center; according to clause 1; Ia which is characterized by that, centered under the bottom of the internal tub, the special support consists of a round platform that has a central hole that is crossed, leaving a small clearance, by a central guide tube or cylindrical extension of the bottom of the Ia same tub; on the platform a circular series, concentric with the tub, of vertical wheels with its axes directed radially towards the center of the hole is fixed, so that these wheels support the weight and rotation of the tub rolling on the bottom of it ; in addition, another series of horizontal wheels, with their axes also fixed to the platform, are distributed around the central hole of the platform, in such a way that the wheels, rotating on the peripheral surface of the guide tube, keep the tub rotating on its own geometric center; The platform additionally has under it a distributed series of supports that support the assembly and allow the free movement of the platform in any lateral direction; each of these supports uses the system of a horizontal bushing that rotates, transversely to its geometric axis, on a bolt fixed below the platform and slides at the same time, mounted as a slide, on a round horizontal bar that oscillates or is angularly and horizontally it moves on one of its ends, this end joined to a vertical bushing that rotates on a bolt anchored in a mamelon that protrudes from the bottom of the main tub; At the other end of the bar a vertical wheel is mounted and perpendicular to the bar, of such diameter that the wheel rests on the bottom of the main tub supporting its weight.

17. - A variant of the platform system that supports the rotation of the internal tub that centrifuges clothes, in such a way that this system allows the assembly to move laterally around any virtual axis that passes through the center of gravity of the Ia tub; according to clause 16; which is characterized in that the platform uses, to be supported and achieve this movement, the method of two systems or sets of slides that run in perpendicular directions to each other, so that the platform is attached to the first set of slides and is in turn runs on the second set, fixing the latter to the structure of the washing machine.

18. - A machine with two tubs for washing and squeezing clothes, which has a rotary washing system and a spinning system for the clothes inside the internal tub; Each of these two systems is fed, below the internal tub, by a closed pumping circuit that employs a centrifugal pump for the washing circuit and another for the centrifuge, each of which operates with a different direction of rotation. and they are driven by the same motor with interchangeable rotation, in accordance with clause 1; The internal tub, rotating on its geometric axis, is supported by a platform that moves laterally in any direction, according to clause 16; This machine is characterized in that a submersible motor is used to move both pumps, so that the whole set, of the two hydraulic circuits and the motor, hangs from the platform and moves along with it inside the centrifuge chamber during this cycle .

19. - A special support of a vertical internal tub that squeezes clothes by centrifugation and is housed inside a main tub, in such a way that the internal tub rotates, without resting on a rigid axis, on the virtual axis that passes through the center of gravity of the tub and clothes; for this, the support allows the internal tub freely to move laterally around any virtual axis of rotation, while the tub rotates on its geometric center; in this case the main tub functions as such support of the internal tub, so that it rotates with its geometric axis on a bearing fixed in the center of the bottom of the main tub; according to clause 1; Which is characterized in that the main tub, to move freely laterally, uses a series of support mechanisms similar to those of the wheels that automatically align with the direction of travel to any side; each support of these consists of a horizontal and sufficiently long flat bar that at one of its ends is articulated to a first vertical axis or pivot bearing fixed to the bottom of the tub, so that the bar can oscillate horizontally on such end; in addition, the flat bar slides linearly, in either direction, resting on the upper periphery of a vertical wheel, or of a horizontal axis, whose vertical position can rotate horizontally on another pivot or second vertical axis bearing, of such so that, always maintaining a minimum distance between the support wheel and the first bearing, the bar is aligned with the direction of travel of the tub and the wheel with the direction of the bar at any time; below the box that holds the second bearing a vertical guide bar is welded that runs inside a support bushing welded to the structure of the washing machine; between the second bearing housing and the support bushing, a compression spring is placed, supporting the weight of the assembly.

20. - A variant of the support system of the main tub so that it moves freely laterally, while the internal tub rotates on its geometric axis within the main one; in accordance with clause No. 19; Which is characterized by the use of a series of special supports, similar to a universal transmission joint, for hanging from these to the main tub, around its upper periphery; each of these supports consists of a crosshead formed by two axes joined and crossed at 90 ° in its center, so that a vertical bar hangs and swings or rotates angularly with respect to its upper end on one of the two axes and the other axis rotates on itself attached to the structure of the machine; this bar loosely crosses the hole of a plate or ear welded to the main tub so that a compression spring, attached to the lower end of the bar and supported under the hole of the plate, supports the weight of the tub; in such a way that the oscillation of the bar in any direction allows lateral displacement in all directions of the main tub; or a ball joint is used to hang, from the structure, the upper end of these bars that hold the main tub.

21. - A rotary washing system, without a central pole, of a vertical washing machine fed by a large diameter vertical tube connected to the discharge of the pump from a closed pumping circuit in series with the tubs, so that this tube penetrates inside the tubs through a passage hole, practiced in the center of the bottom of the centrifuge chamber; at the end of this first tube a second vertical tube is inserted that rotates on it, by means of a rotating coupling, and flows, centrally, into a closed chamber in the form of a double-walled bell and large section, which changes 180 ° the direction of the flow with minimal pressure losses, so that the flow is directed within the chamber towards the Venturi tubes of a series of special eductors without diffuser; whose suctions are fed from a fixed steam generating chamber through a closed steam passage box centrally fixed to the flared chamber, which rotates with it and distributes the steam to the different suctions of the eductors, using a mechanical seal to join The fixed part with the rotating part of the steam line; in such a way that the educators produce jets of water and steam at low pressure generating currents that drag the clothes, with the help of the rounded bottom of the internal tub, in closed descending, ascending and radial paths, around the entire space of the internal tub; in such a way that these jets, by reaction, produce the rotation of the flared chamber and the eductors; The internal tub, driven by a Pelton turbine, rotates on its geometric axis within the main tub; according to clause 1.7 or 8, which is characterized in that the passage hole at the bottom of the internal tub so that between the feeding tube it has a slight adjustment with it, and the tube is raised inside the tub until close to its upper area where it is coupled with the second rotating tube or tube that ends and flows into the center of the lower part of the flared chamber, so that the periphery of the bottom of the latter is connected to the Venturi tubes from a series of special eductors without diffuser whose outlet tubes they direct the jets of water and steam bubbles towards the bottom of the inner tub, forming the drainage currents of the clothes in closed paths within the tub; the exit tubes of the eductors direct such jets in a slightly offset direction the same vertical angle, so that the horizontal component of the reaction thereof drives the rotation, on the second tube, of the flared chamber together with the educators; additionally and as an auxiliary system, at the bottom of the internal tub a series of radial blades are fixed such that, when the rotation of this tub is activated by means of the Pelton turbine, said blades propel towards the periphery or the side of The tub is the clothes that are in the area of the same blades.

22. - A vertical rotary washing system with a central pole, a steam chamber and a series of eductors without a diffuser, powered by a closed pumping circuit with reduced losses, whose rotation is supported by a centered rotating tube, which conducts the flow and spin driven by a jet reaction; the flow enters through a central tube fixed at the bottom of the centrifuge and coupled chamber, introducing one into the other, with another tube attached to the bottom of the internal tub and with the rotating tube; in accordance with clause 1; which is characterized in that the upper end of the rotating tube gradually increases its diameter in conical form to flow, centrally and below, into a closed cylindrical chamber, of low height and wide diameter, housed in the bottom of the inner tub; in such a way that, with minimal losses due to the change in its direction, the flow decreases its speed by radially traversing the conical and cylindrical section as the area of these sections increases; The cylindrical chamber has an inverted conical appendage on the mouth of the rotating tube; the flow that transits in the cylindrical chamber is distributed within a series of internal radial sections of the chamber, so that the walls of each section guide, converging, part of the flow towards the inlet tube of a respective eductor placed in the periphery from the cylindrical chamber and whose outlet tube, short and slightly curved, discharges water jets and steam bubbles in a suitable tangential direction; curved vertical plates are conveniently placed inside each radial section to help the flow go to the entrance of each eductor.

23. - A system of two planetary reducers, aligned one above the other, with different direction of rotation and centrally coupled to a hollow central pole with radial blades of a rotary washing system, such that a centered axis that rotates in a only one direction is driving alternately, through a certain ratchet system, to the central gear of each reducer, to produce an oscillatory movement on the pole; in accordance with clause No.1; which is characterized in that the central gear of each reducer rotates on a hollow shaft, so that within both axes, aligned and independent, a rotating ratchet tube that can be displaced vertically in such a way that, by any means, is comfortably housed. suitable tightening system, in its upper position it is carved with the hollow shaft of one of the central gears and in its lower position it is lashes with the hollow shaft of the other central gear, leaving the first shaft free; the number of intermediate gears of one reducer is even and the number of intermediate gears of the other is non, so that, although the two central gears always turn in the same direction, the peripheral gears of each reducer will rotate in the opposite direction, one respect to the other, as each central gear is driven alternately by the ratchet tube; in turn, the ratchet tube is rotated by a second tube or axial drive shaft that is inside it, coupled by a wedge adjusted slightly so that it allows vertical displacement of the ratchet tube; The alternating vertical movement of the ratchet tube is controlled by a spring and the actuation of a coil on a magnetic core mounted on the ratchet tube or by a cam system, at the required frequency.

24. - A machine for washing and squeezing clothes by centrifuging two front-loading tubs or horizontal axis, consisting of a horizontal main tub or drum with a circular, chamfered front opening, which is sealed tightly by a circular lid with tapered periphery and sealing gasket; inside the main drum another horizontal tub or rotating internal drum is housed, which also has a front opening, equally circular and chamfered, for inserting or removing the clothes, in addition to a series of fins and perforations along its internal side; Inside the internal drum there is a special fixed eductor without diffuser, with its suction connected to a steam generator chamber also fixed, which directs a stream of water and steam bubbles at low pressure on the water and the clothes that are transferred and settling on the lower side of the drum when it turns; in the squeezing of the clothes the internal drum rotates together with a common Pelton turbine driven by jets of water thrown by nozzles connected to the discharge of the pump; a series of annular balancing chambers surround the side of the internal drum; these two systems are activated by a closed pumping circuit; according to clause 1; Ia which is characterized in that in the center of the bottom of the main drum, towards the interior of this, a first wide horizontal tube is welded with free passage; This first tube is located inside a second wide tube welded in the center of the bottom of the inner drum and placed out of it, with slight adjustment between both tubes as a bearing, so that the inner drum and its tube can rotate on the main drum tube; On the front side, the internal drum rests firmly on a conical periphery wheel that records its taper in the chamfered opening of the same drum, such that the drum rotates together with the wheel whose axle is supported by a sealed bearing fixed to the Main drum cover and pushed by a spring, to adjust the recording pressure between the conical wheel and the internal drum opening; to wash, the feeding of the water flow inside the internal drum is carried out by connecting the discharge tube of the pump with the rear end of the wide tube of the main drum, using an intermediate conical extension and a conical deflector core to couple both tubes ; he front end of this wide tube ends, centrally and inside the internal drum, at the base of a horizontal cylindrical box; along the wide tube, and including the cylindrical box, a helical plate is placed that produces a rotary component at its speed when entering the cylindrical box; within the cylindrical box and from the central connection of the flow in it, a large section volute directs the flow towards the periphery of the box to exit through a tangential tube to the perimeter of the same box; The tangential tube ends in the Venturi of the eductor which directs its discharge, downwards and almost tangentially, on the fins of the internal drum so that the jet of water and steam bubbles sticks on them and rotate the drum.

25.- A variant of the machine for washing and squeezing clothes of two tubs or drums of horizontal axis, in which the main drum has a wide tube in the center of its bottom, with free passage inside the secondary or internal drum, on which rotates another wide tube attached to the internal drum and on which a Pelton turbine is mounted; This machine uses a closed pumping circuit to feed a special eductor without a wash diffuser and another circuit to feed the water jets that drive the Pelton turbine that produces the internal drum rotation; according to clauses 1 and 21; The machine is characterized in that the special eductor is housed inside the wide inlet tube attached to the bottom of the main drum and is fed directly by connecting the discharge tube of the washing circuit pump with the Venturi of the special eductor, in such a way that The small diameter outlet tube of this eductor is as short as possible and protrudes slightly from the bottom of the inner drum, so that its end curves a little downward so that it directs the water jet and steam bubbles at low pressure on the lower side of the inner drum; in addition, this end of the outlet tube is covered with a disk of rounded surfaces to prevent the clothes from being hooked with the same end of the tube; During the washing, the operation of the washing circuit is alternated with the operation in small intervals of the spin circuit, with the purpose of rotating the internal drum a little and the clothes are being pierced during washing.

26. - A machine with two horizontal axis tubs for squeezing clothes by centrifugation, which consists of a horizontal main tub or drum inside which is an internal drum that rotates on its geometric center with the clothes for squeezing into it; the whole of the drums is suspended from a system of special supports that allows the set of both drums to move laterally around the virtual axis that passes through the center of gravity of the internal tub; the pipes connected to the drums have interleaved sections of flexible hoses to allow this movement of the assembly; in accordance with clause 1; Which is characterized by the fact that the main drum moves laterally hung from a series of pairs of supports, a support on each side of the drum, which employs the system of a slide that slides on a bar that, articulated at one of its ends , moves angularly; and why each of these supports, which operate in planes perpendicular to the axis of the drum, consists of an ear welded to the main drum which supports a sliding bushing that can rotate, transversely to its geometric axis, on a horizontal pivot fixed to the ear and parallel to the axis of the drum; Inside the bushing a vertical round bar slides from its articulated upper end to a pivot on which it can oscillate or rotate angularly, as a pendulum, in a plane perpendicular to the axis of the drums; at the lower end of the oscillating bar a compression spring is fixed which is pressed against the lower face of the sliding bushing to support, together with the other supports of the series, the weight of the drums; each of the pivots of the upper end of the two oscillating bars which, placed in pairs, are each located on the respective side of the main drum, are attached to the corresponding ends of a horizontal bar, placed transversely above the drum, in whose middle part rises a vertical rod in which, at its upper end, two swivel bars are tilted against each other with a certain angle as normal position and one on each side of the rod; the opposite or lower end of each of the inclined bars is rotatably articulated to a respective end of a second round and horizontal bars running, opposed to each other and limited each by a compression spring, within a bushing fixed to the structure of the washing machine; in such a way that the force of the vertical movement of the drums is decomposed and projected, horizontally and vertically by the inclined bars, in two opposite forces on the springs and in two opposite torsion pairs on the bushings, which only cause internal stresses in The structure of the washing machine and its attachment to the floor.

27. - An industrial machine for washing clothes in large quantities that employs a series of special eductors without a diffuser fed by a closed water pumping circuit that is in the wash tub; these educators have their suction fed by a low pressure steam generator and discharge water jets with negative pressure steam bubbles inside the wash tub for washing by cavitation and in the proper direction for the circulation of water and clothes inside The tub, according to clause 1, which is characterized in that the wash tub consists of a channel of sufficient dimensions and a closed path in an oval or rectangular shape with rounded corners, inside which a series of special eductors discharge the jets of water and steam in a certain direction to circulate the clothes around the tub, so that the suction of the recirculating pumping system is arranged at the bottom of the tub; also, in the internal part of the sides of the tub a series of inclined fins are placed to cause the piercing of the circulating clothes.

28. - A system of squeezing the laundry washed in an industrial washing machine in accordance with clause 26, which consists in passing the clothes, guided by a conveyor belt, between two rotating rollers that press the clothes between them; This system is characterized in that a first perforated conveyor belt composed of two sections and placed horizontally above a straight part is used of the channel-shaped wash tub; this first conveyor belt comprises an initial section that can slowly turn downwardly inclined until its end touches the bottom of the channel; so that the initial section is collecting and raising the clothes towards the final section that remains horizontal; This final section of the first band takes the clothes to its end to throw it in a second conveyor belt, which is located below the first one, which guides the pair of rotating rollers that squeeze between them by pressure.

29. - A variant of the industrial machine for washing and squeezing clothes in a main wash tub in the form of a closed path channel that washes by means of water jets and low pressure steam that discharge, within the tub, a series of special eductors without diffuser fed by a closed pumping circuit, according to clause 26; furthermore, for centrifugation, the main tub is held by special supports that allow it to move laterally in any direction while an internal tub rotates centered within the main one; for this, the connection pipes with the pumping system comprise a flexible section, according to clause 20; This machine is characterized in that the main wash tub is in the form of a closed circular path channel and inside it is housed, with a certain separation between the two, the inner tub that has the same shape as that and serves to centrifuge the clothes by rotating it by a vertical motor fixed in the center of the main tub and to which it is coupled; additionally, inside the inner tub a basket is housed, with the same profile or shape similar to the tub, which is coupled with a conical body with eyelet for easy registration with the engine copy and rotates linked to the inner tub, so that this basket is used to remove the clothes by lifting this basket by means of a crane linked to the arm.

30, - A variant of the industrial machine for washing and squeezing clothes in two tubs and a basket to remove the washed clothes that are formed, together, of a large channel of closed circular path, within which the washing is carried out by means of eductors without diffuser that discharges on a drag zone and are connected to the periphery of a special horizontal cylindrical chamber, housed in the bottom of the internal tub, which in turn is connected, centrally and below, to a vertical rotating tube that flows in conical form inside it; the flow is supplied by a closed pumping circuit whose discharge or feed tube is coupled to the rotating tube, introducing it into it with a slight adjustment; The main tub has a support system for balancing the rotation of the internal tub that is produced by a vertical motor centrally placed under the tubs; in accordance with clauses 1, 21 and 28; Which is characterized in that the central connection of the feeding tube to the system is vertical through the flat bottom of the main tub and is directly coupled with the rotating tube attached to the cylindrical chamber; the central cylindrical body that forms the internal wall of the channel is fixed to the upper part of the cylindrical chamber and this, together with the rotating tube, are integrated to the bottom of the inner tub; the central cylindrical body of the basket to take out the clothes, adapted to the central cylindrical body of the channel, has curved, horizontal and radial plates that together with the bottom of the basket form drag zones placed in front of each eductor; The vertical portion of the discharge or feed tube forms a 90 ° elbow under which an engine is placed such that its vertical drive shaft crosses the elbow through a through hole and is axially housed within this part of the tube, sealing the passage of the shaft by means of a mechanical seal; the upper end of the drive shaft inside the feeding tube is joined, by narrow radial arms, to the inside of the lower end of the rotating tube attached to the inner tub, so that when the motor is operated the axis of the latter rotates the rotating tube together with the internal tub during the spin cycle.

31. - A washing system that employs a centrifugal pump to constantly recirculate the water from the wash tubs, between them and the same pump, according to the first clause, which is characterized by the fact that, transversely to the suction pipe of the pump, a series of radial blades mounted on the end of the same axis of the impeller of the pump are placed and pressed by means of springs against other similar blades and against a plate with multiple perforations, which are fixed to the pipe .