CA2041613C - Regulator cone - Google Patents
Regulator cone Download PDFInfo
- Publication number
- CA2041613C CA2041613C CA 2041613 CA2041613A CA2041613C CA 2041613 C CA2041613 C CA 2041613C CA 2041613 CA2041613 CA 2041613 CA 2041613 A CA2041613 A CA 2041613A CA 2041613 C CA2041613 C CA 2041613C
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- CA
- Canada
- Prior art keywords
- grooves
- regulator device
- primary
- groove
- regulator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86718—Dividing into parallel flow paths with recombining
- Y10T137/86734—With metering feature
Abstract
The disclosure relates to a regulator cone (1) of substantially cylindrical form, on whose circumferential surface there are provided four V-shaped grooves (2, 3), whose cross-sectional areas increase along the longi-tudinal axis of the regulator cone (1). Two of the grooves (2, 3), the primary grooves (2), extend along the entire active length of the regulator cone (1), and two of the grooves (2, 3), the secondary grooves (3), extend along that half of the active length of the regulator cone (1) where the primary grooves (2) have their largest cross-sectional area.
Description
~~v~~
_1_ ~ R~GUL,~TDR C~iV~
T,~'CHIVICAL FILL
The present invention relates to a regulator cone fox a valve, there being provided, on the circumferential sur face of the regulator cane, substantially V-shaped grooves whose cross-sectional areas increase along the longi tudinal axis of the regulator cone.
~~CfCGR~IJ~IIl ~1R~' Regulator cones with grooves - either rectancJular ar V-shaped - provided in the circumferential surface are previously known in the art, far example from German Patent Specification DE 1062507.
In regulating the flaw in a piping system, it is often necessary to obtain an exponential flow charac teristic to be able to achieve performance targets. The flow characteristic is defined as the relationship between the flow and the stroke length.
In flow .regulation in piping systems which, in 'their one end, are fed at an as good as constant liquid pressure and, in their other end, discharge towards another lower, as good as constant liquid pressure, i.e. from a pressure tank to an open level vessel, the total pressure drop over the piping system will be distributed between, an the one hand, pressure drop in pipes because of flow losses, and, on the other hand, pressure drop over the regulator cone.
Thereby, the pressure drop over the regulator cone will be a function of the flaw.
In flow regulation in systems in which. the pressure drop over the regulator cane is a function of the flow, ~0 the surface area characteristic must be steeper than the flow characteristic, since the surface area characteristic must also compensate for the reducing pressure drop over the regulator cone on increasing flaw. The surface area characteristic is defined as the relationship between the regulator surface and the stroke length, Conventional types of regulator cones do not provide a desired surface area increase, nor do the prior art reg ulator cones provided with V-grooves display such a flow characteristic.
~SJE~TS of TtdE If~IIVET~T'IO9~
One, object of the present invention is to realize a regulator cone with an exponential flow characteristic which is well-defined in order to be able to obtain rapid and exact regulation of the flow.
A further object of the present invention is to re alize a regulator cone of reasonably long stroke length, which is necessary in employment together with aseptic diaphragms within, for instance, the food industry.
Yet a further object of the present invention is to realize a regulator cone whictz .is gentle to sensitive pro ducts and which is hygienic and easy to clean. Further more, the regulator cone according to the invention is less susceptible to wear.
Soturlonr zs These and other objects have been attained according to the present invention in that the regulator cone of the type described by way of introduction has been given the characterizing features that the regulator cone is of sub-stantially cylindrical form and that the grooves consist of an even number, of which half of the number of grooves, the primary grooves, extend along the entire active length of the regula°tor cone, and half of the number of grooves, the secondary grooves, extend along a portion of the ac-five length of the regulator cone. Preferred embodiments of the present invention have further been given the characterizing features as set forth in the appended sub-claims.
- 2a -Thus, in one aspect, the invention provides a regulator device, useable in a valve body for controlling fluid flowing through the body during successive strokes of the regulator device. The regulator device comprises a substantially cylindrical member having a first end and an oppositely po:~itioned second end. When in use in a valve body, fluid flows from the first end toward the second end.
The cylindric<~l member has four substantially V-shaped grooves formed in an outer circumferential surface thereof.
Each of the grooves has a. cross-sectional area that increases in a direction towards the first end of the cylindrical member, and the four grooves include two oppositely positioned primary grooves which extend along substantially the entire length of the cylindrical member and two oppositely positioned secondary grooves that extend along less of the len<~th of the cylindrical member than the primary grooves. The length of the secondary grooves is substantially one-half the length of the primary grooves to achieve an exponential flow characteristic for the regulator device. The secondary grooves extend along the portion of the length of the cylindrical member in which the cross-sectional area of the primary grooves is largest so that during a first half of the stroke of the regulator device the two primary grooves permit fluid flow while the two secondary grooves prevent fluid flow. During a second half of the stroke of the regulator device, the two primary grooves and the two secondary grooves both permit fluid flow.
In another aspect, the invention provides a regulator device, for use in a valve to control fluid flow, 2b -comprising: a generally cylindrical member defining an active length of the regulator device for interacting with a valve seat of the valve, to control the flow of material from a first end of the member toward an oppositely located second end of the member during successive strokes of the regulator device. The c:;rlindrical member has an outer circumferential surface in which is formed a plurality of substantially V-shaped grooves, each of the grooves having a cross-sectional area t=hat increases along a longitudinal extent thereof toward one end of the member. The plurality of V-shaped grooves inc7_udes at least one primary groove that extends substantia7_ly the entire active length of the member and at least one secondary groove. The at least one secondary groove extend: over substantially one-half the active length of the mennber to thereby result in an exponential flow characteristic for the regulator device.
The at least one secondary groove is positioned with respect to the primary groove such that the at least one secondary groove extend: along the portion of the active length of the member in which the primary groove has its largest cross-sectional <area so that during a first half of the stroke of the regulator device the at least one primary groove is active for permitting fluid flow while the at least one secondary groove is inactive for preventing fluid flow. During a second half of the stroke of the regulator device the at. least one primary groove and the at least one secondary groove are boi=h active for permitting fluid flow.
N
_1_ ~ R~GUL,~TDR C~iV~
T,~'CHIVICAL FILL
The present invention relates to a regulator cone fox a valve, there being provided, on the circumferential sur face of the regulator cane, substantially V-shaped grooves whose cross-sectional areas increase along the longi tudinal axis of the regulator cone.
~~CfCGR~IJ~IIl ~1R~' Regulator cones with grooves - either rectancJular ar V-shaped - provided in the circumferential surface are previously known in the art, far example from German Patent Specification DE 1062507.
In regulating the flaw in a piping system, it is often necessary to obtain an exponential flow charac teristic to be able to achieve performance targets. The flow characteristic is defined as the relationship between the flow and the stroke length.
In flow .regulation in piping systems which, in 'their one end, are fed at an as good as constant liquid pressure and, in their other end, discharge towards another lower, as good as constant liquid pressure, i.e. from a pressure tank to an open level vessel, the total pressure drop over the piping system will be distributed between, an the one hand, pressure drop in pipes because of flow losses, and, on the other hand, pressure drop over the regulator cone.
Thereby, the pressure drop over the regulator cone will be a function of the flaw.
In flow regulation in systems in which. the pressure drop over the regulator cane is a function of the flow, ~0 the surface area characteristic must be steeper than the flow characteristic, since the surface area characteristic must also compensate for the reducing pressure drop over the regulator cone on increasing flaw. The surface area characteristic is defined as the relationship between the regulator surface and the stroke length, Conventional types of regulator cones do not provide a desired surface area increase, nor do the prior art reg ulator cones provided with V-grooves display such a flow characteristic.
~SJE~TS of TtdE If~IIVET~T'IO9~
One, object of the present invention is to realize a regulator cone with an exponential flow characteristic which is well-defined in order to be able to obtain rapid and exact regulation of the flow.
A further object of the present invention is to re alize a regulator cone of reasonably long stroke length, which is necessary in employment together with aseptic diaphragms within, for instance, the food industry.
Yet a further object of the present invention is to realize a regulator cone whictz .is gentle to sensitive pro ducts and which is hygienic and easy to clean. Further more, the regulator cone according to the invention is less susceptible to wear.
Soturlonr zs These and other objects have been attained according to the present invention in that the regulator cone of the type described by way of introduction has been given the characterizing features that the regulator cone is of sub-stantially cylindrical form and that the grooves consist of an even number, of which half of the number of grooves, the primary grooves, extend along the entire active length of the regula°tor cone, and half of the number of grooves, the secondary grooves, extend along a portion of the ac-five length of the regulator cone. Preferred embodiments of the present invention have further been given the characterizing features as set forth in the appended sub-claims.
- 2a -Thus, in one aspect, the invention provides a regulator device, useable in a valve body for controlling fluid flowing through the body during successive strokes of the regulator device. The regulator device comprises a substantially cylindrical member having a first end and an oppositely po:~itioned second end. When in use in a valve body, fluid flows from the first end toward the second end.
The cylindric<~l member has four substantially V-shaped grooves formed in an outer circumferential surface thereof.
Each of the grooves has a. cross-sectional area that increases in a direction towards the first end of the cylindrical member, and the four grooves include two oppositely positioned primary grooves which extend along substantially the entire length of the cylindrical member and two oppositely positioned secondary grooves that extend along less of the len<~th of the cylindrical member than the primary grooves. The length of the secondary grooves is substantially one-half the length of the primary grooves to achieve an exponential flow characteristic for the regulator device. The secondary grooves extend along the portion of the length of the cylindrical member in which the cross-sectional area of the primary grooves is largest so that during a first half of the stroke of the regulator device the two primary grooves permit fluid flow while the two secondary grooves prevent fluid flow. During a second half of the stroke of the regulator device, the two primary grooves and the two secondary grooves both permit fluid flow.
In another aspect, the invention provides a regulator device, for use in a valve to control fluid flow, 2b -comprising: a generally cylindrical member defining an active length of the regulator device for interacting with a valve seat of the valve, to control the flow of material from a first end of the member toward an oppositely located second end of the member during successive strokes of the regulator device. The c:;rlindrical member has an outer circumferential surface in which is formed a plurality of substantially V-shaped grooves, each of the grooves having a cross-sectional area t=hat increases along a longitudinal extent thereof toward one end of the member. The plurality of V-shaped grooves inc7_udes at least one primary groove that extends substantia7_ly the entire active length of the member and at least one secondary groove. The at least one secondary groove extend: over substantially one-half the active length of the mennber to thereby result in an exponential flow characteristic for the regulator device.
The at least one secondary groove is positioned with respect to the primary groove such that the at least one secondary groove extend: along the portion of the active length of the member in which the primary groove has its largest cross-sectional <area so that during a first half of the stroke of the regulator device the at least one primary groove is active for permitting fluid flow while the at least one secondary groove is inactive for preventing fluid flow. During a second half of the stroke of the regulator device the at. least one primary groove and the at least one secondary groove are boi=h active for permitting fluid flow.
N
BRIEF t7~'~CIt,TP'TTCIV ~P ~'f~E ~CCiJMPaAi6IYIF~~ f~fdAE~T~~a Preferred embodiments of the presewt invention will now be described in greatex detail hereinbelow, with par-ticular reference to the accompanying Drawings.
In the accompanying Drawings:
Fig. 1 shows a first preferred embodiment of the present invention;
Fig. 2 shows a second preferred embodiment of the pxesent invention;
Fig. ~ is a diagram showing an exponential flow characteristic; and Fig. 4 is a schematic view of a regulator cone with its different operational phases.
The Drawings illustrate only those details essential to an understanding of the present invention.
Both of the preferred embodiments as illustrated in Figs. 1 and 2 show a substantially cylindrical regulator cone 1 on whose circumferential surface there are provided four substantially V-shaped grooves 2, 3, with triangular ax quasi-txiangular cross-sectional areas. Two of the grooves, the primary grooves 2, extend along the entire length of the regulator cane, while two of the gxooves, the secondary grooves 3, extend along a part of the length of the regulator cone 1. In both of the prefexred embodi-ments, the secondary grooves 9 extend along that half of the active length of the regulator cone 1 where the pri mary grooves 2 have their largest cross-sectional area.
The active length of the regulator cone 1 is defined as that substantially cylindrical part of the regulator cone 1 where the regulator cone 1 controls, in relation to a valve seat, the forwardly flowing liquid.
the regulator cane 1 may also be designed with two grooves 2, 3, of which one primary groove 2 and one secon-daxy groove 3. ~IotaPver, this results in a reguJ.ator cone 1 which is less capable than the regulator cone 1 of the ~04~.6~.
preferred embodiment of cancelling out the dynamic forces which occur in the liquid flowing forward through the reg-ulator valve.
Furthermore, the regulator con a 1 may be designed with six grooves 2, 3, three primary grooves 2 and three secondary grooves 3. However, this solution results in narrower throughflow channels in the regulator cone 1, which is a drawback fox certain foods, for example juice with fruit flesh pieces. Additional grooves 2, 3 in the regulator cone 1 would probably thereby be unsuitable and could even impede manufacture of the regulator cone 1.
Tn Fig. 1, the two secondary grooves 3 consist of two separate grooves, while, in Fig. 2, they have been con-nected together into one groove normal to the longitudinal axis of the regulator cone 1. However, in this latter case, they functionally constitute two secondary grooves 3, since the area where the forwardly flowing liquid is permitted to advance is still triangular. Tn terms of pro-duction engineering, it may be an advantage to cause the secondary grooves 3 to consist of one groove which is dis-posed normal to the longitudinal axis of the regulator cone 1., since, in such instance, it is alsa possible to make the sides 3 of the grooves convex.
The four grooves may be designed with a straight bot tom line 9, 5, but they may also be designed with a curved line. Alternatively, some of the grooves, eg. the secon dary grooves, may be designed with a straight bottom line 5, while the bottom line 4 of the primary grooves is curved. At the one defining surface 6 of the regulator cone 1 where the grooves 2, 3 have their largest cross-sectional areas, the regulator cone according to the in-vention is provided with a bevelled edge 7.
The primary V-grooves 2 and the secondary grooves 3, respectively, are preferably disposed diametrically in order to counterbalance the dynamic forces from the flow of the liquid.
~o~.~
Tlae surface area characteristic of the regulator cone 1 according to the invention is illustrated diagram-matically in Fig. 3. The one axis of the diagram indicates the stroke length S in per cent and the second axis in-s dicates the cross-sectional area, the regulation area ~ in per cent.
In order to be able physically ~to design regulator cones 1 with reasonable stroke lengths and with as steep area characteristics as are required to achieve an ex-ponential flow characteristic as shown in Fig. 3, use must be made of a design with V-grooves 2, 3 which, already in linearly milled grooves, give an almost square change of the area with the stroke length of the regulator cone.
Moreover, use must be made of primary and secondary V-grooves 2, 3 in which, for example during the first half of the stroke length of the regulator cone, only the primary V-grooves 2 are open and, during 'the latter half of the stroke length, both the primary 2 and the secondary 3 V-grooves are open. By the combination of primary 2 and secondary 3 V-grooves, it is possible ~to achieve the situ-ation that the area characteristic during -the first part of the stroke length consists of an as good as square re-lationship and, during the second part of the stroke length, consists of a combination of two as good as square relationships, which together gives an exponential surface area characteristic.
The regulator cone 1 creates its pressure drop by converting pressure into speed which, in turn is converted into heat by vortex formation. This presupposes that the liquid flows a.n towards that end where the V-grooves 2, 3 of the regulator cone 1 have their largest cross-sectional area, see Fig. ~, and flows out where the area of the V-gxooves 2 and 3 is smallest. In the opposite flow di-rection, the V--grooves 2, 3 act as a diffusox and the kin-etic energy of the liquid is more ox less completely con-verted back into compression energy again.
It is possible to finely adjust the surface area characteristic so as to achieve tile desired ea~ponential flaw characteristic by milling the V-grooves 2, 3 in ac-cordance with a mathematically computed curve form. This curve form may be applied to all of the four V-grooves 2, 3, ox alternatively only -to the primary V-grooves 2. The mathematical calculations which are employed in order to impart to the regulator cane 1 a "tailor-made" design fox its practical application may be used for controlling the regulator valve. In that case in which the regulator valve is employed in filling machines for liquid contents, milk, juice or the like, which are controlled by computer soft ware, the mathematical calculation may be entered direct into the program and by such means a highly exact and rapid regulation of the valve may be achieved.
As shown in Figs. 3 and 9, during phase T only the primary grooves 2 are active, i.e. at a stroke length of 4 to 50 per cent. During phase TT, the secondary grooves axe activated and give the steep surface area characteristic shown by the curve in Fig. 3.
In the preferred embodiment; only 0 to 80 per cent stroke length is employed fox regulation. The remaining 20 per cent, i.e. phase IIT is used an washing of the regu-lator valve. Tn particular in the use of the regulator cone 1 according to the present invention in the food in-dustxy, in which the hygienic demands are stringent, the regulator cone 1 may be designed with a physical length which is shorter than its stroke length so that, on washing, it is possible wholly to withdraw the regulator cone 1 from the valve seat and thereby avoid tight gaps between the regulator cane 1 and the valve seat, at the same'time as a large opening area is provided so a~ to achieve the correct wash flow. Yn such instance, the bevel 7 which is disposed on the regulator cone 1 makes an active contributiorn. The V-shaped grooves 2, 3 axe also very easy to wash.
2~~~.~1 - 7 ._ The regulator cone 1 according to the present in-vention also enjoys major advantages when it is employed for liquid foods including solid particles, since it per-mits, for instance, fruit flesh pieces to pass, as no nar-y row gaps are formed between the regulator cone 1 and the valve seat. Tn earlier designs of regulator canes, this situation would result in a pulsating flow, since fruit flesh pieces could easily become trapped in the narrow gaps formed at this region.
Sensitive food products such as acidulated milk, yog-hurt and the like will also be subject to gentler handling using a regulator cone 1 according to the present in-vention, since, in this case, the liquid is not sheared but is treated in a gentle manner. Today, no regulator 'I5 valves are employed for such foods, these being pumped in-stead, in order to ensure as gentle a handling process as possible.
Practical trials have shown that a regulator cone 1 according to the present invention causes less froth for motion. Tn addition, a regulator valve will be obtained which provides silent throttling of the flow and, thereby, a low wear forecast for the regulator cone 1 and the valve seat, because of minimized risk of erosion and cavatation.
As will have been apparent from the above des cription, the present invention realizes a regulator cone which may be employed for rapid and exact regulation,while not suffering from any of the faults and drawbacks in herent in prior art regulator cones.
The present invention should not be considered as re stricted to that described above and shown on the Draw ings, many modifications being conceivable without de parting from the spirit and scope of the appended Claims.
In the accompanying Drawings:
Fig. 1 shows a first preferred embodiment of the present invention;
Fig. 2 shows a second preferred embodiment of the pxesent invention;
Fig. ~ is a diagram showing an exponential flow characteristic; and Fig. 4 is a schematic view of a regulator cone with its different operational phases.
The Drawings illustrate only those details essential to an understanding of the present invention.
Both of the preferred embodiments as illustrated in Figs. 1 and 2 show a substantially cylindrical regulator cone 1 on whose circumferential surface there are provided four substantially V-shaped grooves 2, 3, with triangular ax quasi-txiangular cross-sectional areas. Two of the grooves, the primary grooves 2, extend along the entire length of the regulator cane, while two of the gxooves, the secondary grooves 3, extend along a part of the length of the regulator cone 1. In both of the prefexred embodi-ments, the secondary grooves 9 extend along that half of the active length of the regulator cone 1 where the pri mary grooves 2 have their largest cross-sectional area.
The active length of the regulator cone 1 is defined as that substantially cylindrical part of the regulator cone 1 where the regulator cone 1 controls, in relation to a valve seat, the forwardly flowing liquid.
the regulator cane 1 may also be designed with two grooves 2, 3, of which one primary groove 2 and one secon-daxy groove 3. ~IotaPver, this results in a reguJ.ator cone 1 which is less capable than the regulator cone 1 of the ~04~.6~.
preferred embodiment of cancelling out the dynamic forces which occur in the liquid flowing forward through the reg-ulator valve.
Furthermore, the regulator con a 1 may be designed with six grooves 2, 3, three primary grooves 2 and three secondary grooves 3. However, this solution results in narrower throughflow channels in the regulator cone 1, which is a drawback fox certain foods, for example juice with fruit flesh pieces. Additional grooves 2, 3 in the regulator cone 1 would probably thereby be unsuitable and could even impede manufacture of the regulator cone 1.
Tn Fig. 1, the two secondary grooves 3 consist of two separate grooves, while, in Fig. 2, they have been con-nected together into one groove normal to the longitudinal axis of the regulator cone 1. However, in this latter case, they functionally constitute two secondary grooves 3, since the area where the forwardly flowing liquid is permitted to advance is still triangular. Tn terms of pro-duction engineering, it may be an advantage to cause the secondary grooves 3 to consist of one groove which is dis-posed normal to the longitudinal axis of the regulator cone 1., since, in such instance, it is alsa possible to make the sides 3 of the grooves convex.
The four grooves may be designed with a straight bot tom line 9, 5, but they may also be designed with a curved line. Alternatively, some of the grooves, eg. the secon dary grooves, may be designed with a straight bottom line 5, while the bottom line 4 of the primary grooves is curved. At the one defining surface 6 of the regulator cone 1 where the grooves 2, 3 have their largest cross-sectional areas, the regulator cone according to the in-vention is provided with a bevelled edge 7.
The primary V-grooves 2 and the secondary grooves 3, respectively, are preferably disposed diametrically in order to counterbalance the dynamic forces from the flow of the liquid.
~o~.~
Tlae surface area characteristic of the regulator cone 1 according to the invention is illustrated diagram-matically in Fig. 3. The one axis of the diagram indicates the stroke length S in per cent and the second axis in-s dicates the cross-sectional area, the regulation area ~ in per cent.
In order to be able physically ~to design regulator cones 1 with reasonable stroke lengths and with as steep area characteristics as are required to achieve an ex-ponential flow characteristic as shown in Fig. 3, use must be made of a design with V-grooves 2, 3 which, already in linearly milled grooves, give an almost square change of the area with the stroke length of the regulator cone.
Moreover, use must be made of primary and secondary V-grooves 2, 3 in which, for example during the first half of the stroke length of the regulator cone, only the primary V-grooves 2 are open and, during 'the latter half of the stroke length, both the primary 2 and the secondary 3 V-grooves are open. By the combination of primary 2 and secondary 3 V-grooves, it is possible ~to achieve the situ-ation that the area characteristic during -the first part of the stroke length consists of an as good as square re-lationship and, during the second part of the stroke length, consists of a combination of two as good as square relationships, which together gives an exponential surface area characteristic.
The regulator cone 1 creates its pressure drop by converting pressure into speed which, in turn is converted into heat by vortex formation. This presupposes that the liquid flows a.n towards that end where the V-grooves 2, 3 of the regulator cone 1 have their largest cross-sectional area, see Fig. ~, and flows out where the area of the V-gxooves 2 and 3 is smallest. In the opposite flow di-rection, the V--grooves 2, 3 act as a diffusox and the kin-etic energy of the liquid is more ox less completely con-verted back into compression energy again.
It is possible to finely adjust the surface area characteristic so as to achieve tile desired ea~ponential flaw characteristic by milling the V-grooves 2, 3 in ac-cordance with a mathematically computed curve form. This curve form may be applied to all of the four V-grooves 2, 3, ox alternatively only -to the primary V-grooves 2. The mathematical calculations which are employed in order to impart to the regulator cane 1 a "tailor-made" design fox its practical application may be used for controlling the regulator valve. In that case in which the regulator valve is employed in filling machines for liquid contents, milk, juice or the like, which are controlled by computer soft ware, the mathematical calculation may be entered direct into the program and by such means a highly exact and rapid regulation of the valve may be achieved.
As shown in Figs. 3 and 9, during phase T only the primary grooves 2 are active, i.e. at a stroke length of 4 to 50 per cent. During phase TT, the secondary grooves axe activated and give the steep surface area characteristic shown by the curve in Fig. 3.
In the preferred embodiment; only 0 to 80 per cent stroke length is employed fox regulation. The remaining 20 per cent, i.e. phase IIT is used an washing of the regu-lator valve. Tn particular in the use of the regulator cone 1 according to the present invention in the food in-dustxy, in which the hygienic demands are stringent, the regulator cone 1 may be designed with a physical length which is shorter than its stroke length so that, on washing, it is possible wholly to withdraw the regulator cone 1 from the valve seat and thereby avoid tight gaps between the regulator cane 1 and the valve seat, at the same'time as a large opening area is provided so a~ to achieve the correct wash flow. Yn such instance, the bevel 7 which is disposed on the regulator cone 1 makes an active contributiorn. The V-shaped grooves 2, 3 axe also very easy to wash.
2~~~.~1 - 7 ._ The regulator cone 1 according to the present in-vention also enjoys major advantages when it is employed for liquid foods including solid particles, since it per-mits, for instance, fruit flesh pieces to pass, as no nar-y row gaps are formed between the regulator cone 1 and the valve seat. Tn earlier designs of regulator canes, this situation would result in a pulsating flow, since fruit flesh pieces could easily become trapped in the narrow gaps formed at this region.
Sensitive food products such as acidulated milk, yog-hurt and the like will also be subject to gentler handling using a regulator cone 1 according to the present in-vention, since, in this case, the liquid is not sheared but is treated in a gentle manner. Today, no regulator 'I5 valves are employed for such foods, these being pumped in-stead, in order to ensure as gentle a handling process as possible.
Practical trials have shown that a regulator cone 1 according to the present invention causes less froth for motion. Tn addition, a regulator valve will be obtained which provides silent throttling of the flow and, thereby, a low wear forecast for the regulator cone 1 and the valve seat, because of minimized risk of erosion and cavatation.
As will have been apparent from the above des cription, the present invention realizes a regulator cone which may be employed for rapid and exact regulation,while not suffering from any of the faults and drawbacks in herent in prior art regulator cones.
The present invention should not be considered as re stricted to that described above and shown on the Draw ings, many modifications being conceivable without de parting from the spirit and scope of the appended Claims.
Claims (13)
1. A regulator device, useable in a valve body for controlling fluid flowing through said body during successive strokes of the regulator device, said regulator device comprising: a substantially cylindrical member having a first end and an oppositely positioned second end so that when in use in a valve body, fluid flows from the first end toward the second end, said cylindrical member having four substantially V-shaped grooves formed in an outer circumferential surface thereof, each of said grooves having a cross-sectional area that increases in a direction towards the first end of the cylindrical member, said four grooves including two oppositely positioned primary grooves which extend along substantially the entire length of said cylindrical member and two oppositely positioned secondary grooves that extend along less of the length of said cylindrical member than the primary grooves, the length of the secondary grooves being substantially one-half the length of the primary grooves to achieve an exponential flow characteristic far the regulator device, the secondary grooves extending along the portion of the length of the cylindrical member in which the cross-sectional area of the primary grooves is largest so that during a first half of the stroke of the regulator device the two primary grooves permit fluid flow while the two secondary grooves prevent fluid flow, and during a second half of the stroke of the regulator device the twa primary grooves and the two secondary grooves both permit fluid flow.
2. The regulator device according to claim 1, wherein said cone has an end face adjacent the first end thereof, said primary and secondary grooves opening to said end face.
3. The regulator device according to claim 2, wherein said end face and said outer circumferential surface are connected to one another by a beveled surface.
4. A regulator device, for use in a valve to control fluid flow, comprising: a generally cylindrical member defining an active length of the regulator device for interacting with a valve seat of the valve to control the flow of material from a first end of the member toward an oppositely located second end of the member during successive strokes of the regulator device, said cylindrical member having an outer circumferential surface in which is formed a plurality of substantially V-shaped grooves, each of said grooves having a cross-sectional area that increases along a longitudinal extent thereof toward one end of the member, said plurality of V-shaped grooves including at least one primary groove that extends substantially the entire active length of the member and at least one secondary groove, said at least one secondary groove extending over substantially one-half the active length of the member to thereby result in an exponential flow characteristic for the regulator device, said at least one secondary groove being positioned with respect to the primary groove such that the at least one secondary groove extends along the portion of the active length of the member in which the primary groove has its largest cross-sectional area so that during a first half of the stroke of the regulator device the at least one primary groove is active for permitting fluid flow while the at least one secondary groove is inactive for preventing fluid flow and during a second half of the stroke of the regulator device the at least one primary groove and the at least one secondary groove are both active for permitting fluid flow.
5. The regulator device according to claim 4, wherein said plurality of grooves is an even number of grooves.
6. The regulator device according to claim 4 or 5, wherein said plurality of grooves includes at least four grooves.
7. The regulator device according to claim 4, 5, or 6, wherein said at least one primary groove includes at least two diametrically oppositely positioned primary grooves and said at least one secondary groove includes at least two diametrically oppositely positioned secondary grooves.
8. The regulator device according to claim 7, wherein said at least two secondary grooves are interconnected with one another by a groove disposed substantially perpendicular to a longitudinal axis of the cone.
9. The regulator device according to claim 7 or 8, wherein the primary grooves and the secondary grooves are defined by converging side walls that meet at a bottom line, the bottom line of at least one of the primary grooves and the bottom line of at least one of the secondary grooves being curved.
10. The regulator device according to any one of claims 4 to 9, wherein said primary groove and said secondary groove open to an end face of the cone located at the one end of the cone.
11. The regulator device according to claim 10, wherein the end face of the cone and the circumferential outer surface of the cone are connected to one another by a beveled surface.
12. The regulator device according to claim 4, 5, or 6, wherein the at least one primary groove is defined by converging side walls that meet at a bottom line, the bottom line of the at least one primary groove being curved.
13. The regulator device according to claim 4, 5, or 6, wherein the at least one secondary groove is defined by converging side walls that meet at a bottom line, the bottom line of the at least one secondary groove being curved.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9001727A SE466114B (en) | 1990-05-14 | 1990-05-14 | REGLERKAEGLA |
SE9001727-8 | 1990-05-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2041613A1 CA2041613A1 (en) | 1991-11-15 |
CA2041613C true CA2041613C (en) | 2002-07-23 |
Family
ID=20379471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2041613 Expired - Fee Related CA2041613C (en) | 1990-05-14 | 1991-05-01 | Regulator cone |
Country Status (17)
Country | Link |
---|---|
US (1) | US5163476A (en) |
EP (1) | EP0457132B1 (en) |
JP (1) | JP3078868B2 (en) |
AT (1) | ATE115250T1 (en) |
AU (1) | AU636026B2 (en) |
CA (1) | CA2041613C (en) |
CZ (1) | CZ281229B6 (en) |
DE (1) | DE69105612T2 (en) |
DK (1) | DK0457132T3 (en) |
ES (1) | ES2064804T3 (en) |
HU (1) | HU207149B (en) |
LT (1) | LT3508B (en) |
LV (1) | LV11220B (en) |
RU (1) | RU2048659C1 (en) |
SE (1) | SE466114B (en) |
SK (1) | SK278764B6 (en) |
YU (1) | YU48272B (en) |
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-
1990
- 1990-05-14 SE SE9001727A patent/SE466114B/en not_active IP Right Cessation
-
1991
- 1991-04-25 US US07/691,366 patent/US5163476A/en not_active Expired - Lifetime
- 1991-04-29 AU AU76193/91A patent/AU636026B2/en not_active Ceased
- 1991-05-01 CA CA 2041613 patent/CA2041613C/en not_active Expired - Fee Related
- 1991-05-03 DK DK91107224T patent/DK0457132T3/en active
- 1991-05-03 DE DE1991605612 patent/DE69105612T2/en not_active Expired - Fee Related
- 1991-05-03 AT AT91107224T patent/ATE115250T1/en not_active IP Right Cessation
- 1991-05-03 EP EP19910107224 patent/EP0457132B1/en not_active Expired - Lifetime
- 1991-05-03 ES ES91107224T patent/ES2064804T3/en not_active Expired - Lifetime
- 1991-05-13 HU HU911598A patent/HU207149B/en not_active IP Right Cessation
- 1991-05-13 YU YU82791A patent/YU48272B/en unknown
- 1991-05-13 RU SU914895499A patent/RU2048659C1/en not_active IP Right Cessation
- 1991-05-13 JP JP10714291A patent/JP3078868B2/en not_active Expired - Lifetime
- 1991-05-14 SK SK1418-91A patent/SK278764B6/en unknown
- 1991-05-14 CZ CS911418A patent/CZ281229B6/en not_active IP Right Cessation
-
1993
- 1993-11-22 LV LVP-93-1252A patent/LV11220B/en unknown
- 1993-12-07 LT LTIP1555A patent/LT3508B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CS141891A3 (en) | 1992-01-15 |
US5163476A (en) | 1992-11-17 |
DE69105612D1 (en) | 1995-01-19 |
SK278764B6 (en) | 1998-02-04 |
ATE115250T1 (en) | 1994-12-15 |
SE9001727D0 (en) | 1990-05-14 |
CZ281229B6 (en) | 1996-07-17 |
SE9001727A (en) | 1991-11-15 |
HU207149B (en) | 1993-03-01 |
HUT57401A (en) | 1991-11-28 |
YU82791A (en) | 1994-09-09 |
JP3078868B2 (en) | 2000-08-21 |
LV11220A (en) | 1996-04-20 |
CA2041613A1 (en) | 1991-11-15 |
LV11220B (en) | 1996-06-20 |
DK0457132T3 (en) | 1995-02-13 |
RU2048659C1 (en) | 1995-11-20 |
JPH0791562A (en) | 1995-04-04 |
EP0457132A1 (en) | 1991-11-21 |
AU7619391A (en) | 1991-11-14 |
SE466114B (en) | 1991-12-16 |
EP0457132B1 (en) | 1994-12-07 |
LTIP1555A (en) | 1995-06-26 |
AU636026B2 (en) | 1993-04-08 |
YU48272B (en) | 1997-12-05 |
LT3508B (en) | 1995-11-27 |
ES2064804T3 (en) | 1995-02-01 |
DE69105612T2 (en) | 1995-04-13 |
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Legal Events
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EEER | Examination request | ||
MKLA | Lapsed |