US2403572A - Rotary pump - Google Patents
Rotary pump Download PDFInfo
- Publication number
- US2403572A US2403572A US552227A US55222744A US2403572A US 2403572 A US2403572 A US 2403572A US 552227 A US552227 A US 552227A US 55222744 A US55222744 A US 55222744A US 2403572 A US2403572 A US 2403572A
- Authority
- US
- United States
- Prior art keywords
- coil
- tube
- ring
- eccentric
- rotary pump
- 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 - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
- F04B43/123—Machines, pumps, or pumping installations having flexible working members having peristaltic action using an excenter as the squeezing element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/0009—Special features
- F04B43/0054—Special features particularities of the flexible members
- F04B43/0072—Special features particularities of the flexible members of tubular flexible members
Definitions
- the new pump ofiers several important advantages. There is no piston or rotor moving within the liquid pumped, it has the appearance of the known rotary pump, but has no stufilng boxes for a piston rod or rotor shaft and corrosive liquids or gases can be easily handled without any protective coating hitherto used for the piston or rotor.
- Fig. 1 is an elevational view of the pump;
- Fil ig. 2 is a vertical section on the line IIII of Fig. 3 and Fig. 4 show constructional details on a larger scale.
- the new pump comprises a rubber tube I bent into a coil with preferably slightly more than one turn only.
- the coil is accommodated in an iron cylinder 2 with cast short intake and outlet pipes 3, 4.
- the coil is held in the cylinder by projecting with its ends into the pipes 3, 4.
- Cylinder 2 is closed at one end by a screwed on cover 5, and is attached at the other end to the flange 6 of a shaft bearing I forming part of a pedestal I.
- a shaft 9 projectin with one end into the tube coil, where it has keyed thereto an'eccentric disc ID.
- the outer end of shaft 9 may be coupled to an electromotor or transmission.
- a metallic ring H is arranged on the circumference of the eccentric which rolls upon the flattenedtubewhilethe eccentric rotates within. the ring.
- the metallic ring ll flts tightly into the inner space of the coil so that the wear of the 2 pipe by the rotation of the eccentric is completely eliminated.
- the width of the ring is approximately the same as that of the cylinder 2.
- the ring H is provided with a pin l2 engaging into a slot of a bar I! pivoted by means of another pin it to an eye I! of the casing 2. While the eccentric 1S rotating pin 1! slides in the slot and the bar l3 oscillates about its pivot and prevents ring H from rotating. Thus no relative movement takes place between the contacting surfaces of the ring I l and the tube.
- Tube I may be provided with prolecq tions or buttons l6 fitting into corresponding depressions or the ring II, thus wholly preventing turn, a cylindrical casing in which this coil is fixed, an eccentric disk rotatable within the coil.
- the coil being provided "with projections fitting into recesses of the said eecentric disk being adapted, by means of said ring, to compress said tube progressively and continuously through an angle of 360 with elimination, by said ring, of friction between said diskand tube.
- a rotary pump comprising a resilient tube of circular cross section, bent into a helical coil having slightly more than one full turn and having side lines parallel to its axis thronghout'its length, a cylindrical casing, in which this coil is fixed, an eccentric disk rotatable within the coil,
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Description
July 9, 1946. D. WITTENBERG ROTARY PUMP:
I Filed Sept. 1, 1944 0M0 MTTf/VEEEG Patented July 9, 1946 uNiTEo STATES PATENT orrica ROTARY PUMP David Wittenberg, Romema, Jerusalem,
Pale
sti
Application September 1, 1944, Serial No. 552,227 In Palestine August 31, 1943 or gas contained in the tube in front of the rotating rol er or eccentric *disc is pressed in the direction of rotationjand at the same time the tube portions behind the rotating member reassume, owing to their resiliency, their original shape and volume and suck in fresh fluid. The fluid flows without interruption and no check valve need to be provided to prevent any reflux, since the tube is always compressed at one point.
The new pump ofiers several important advantages. There is no piston or rotor moving within the liquid pumped, it has the appearance of the known rotary pump, but has no stufilng boxes for a piston rod or rotor shaft and corrosive liquids or gases can be easily handled without any protective coating hitherto used for the piston or rotor.
The invention is illustrated in the annexed drawing, wherein,
Fig. 1 is an elevational view of the pump; Fil ig. 2 is a vertical section on the line IIII of Fig. 3 and Fig. 4 show constructional details on a larger scale.
The new pump comprises a rubber tube I bent into a coil with preferably slightly more than one turn only. The coil is accommodated in an iron cylinder 2 with cast short intake and outlet pipes 3, 4. The coil is held in the cylinder by projecting with its ends into the pipes 3, 4. Cylinder 2 is closed at one end by a screwed on cover 5, and is attached at the other end to the flange 6 of a shaft bearing I forming part of a pedestal I. In the bearing 1 is'journalled a shaft 9 projectin with one end into the tube coil, where it has keyed thereto an'eccentric disc ID. The outer end of shaft 9 may be coupled to an electromotor or transmission.
To reduce the friction otherwise occurring between the rotating eccentric and the tube, a metallic ring H is arranged on the circumference of the eccentric which rolls upon the flattenedtubewhilethe eccentric rotates within. the ring. The metallic ring ll flts tightly into the inner space of the coil so that the wear of the 2 pipe by the rotation of the eccentric is completely eliminated. The width of the ring is approximately the same as that of the cylinder 2.
For further reducing the friction between the ring II and the tube-coil, the ring H is provided with a pin l2 engaging into a slot of a bar I! pivoted by means of another pin it to an eye I! of the casing 2. While the eccentric 1S rotating pin 1! slides in the slot and the bar l3 oscillates about its pivot and prevents ring H from rotating. Thus no relative movement takes place between the contacting surfaces of the ring I l and the tube. Tube I may be provided with prolecq tions or buttons l6 fitting into corresponding depressions or the ring II, thus wholly preventing turn, a cylindrical casing in which this coil is fixed, an eccentric disk rotatable within the coil. and a metallic ring inserted between the eccentric and the coil, the coil being provided "with projections fitting into recesses of the said eecentric disk being adapted, by means of said ring, to compress said tube progressively and continuously through an angle of 360 with elimination, by said ring, of friction between said diskand tube.
2. A rotary pump comprising a resilient tube of circular cross section, bent into a helical coil having slightly more than one full turn and having side lines parallel to its axis thronghout'its length, a cylindrical casing, in which this coil is fixed, an eccentric disk rotatable within the coil,
and a metallic ring inserted between the eccen-' angle of 360 with elimination, by said ring, of
friction between said disk and said tube.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL2403572X | 1943-08-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2403572A true US2403572A (en) | 1946-07-09 |
Family
ID=11075962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US552227A Expired - Lifetime US2403572A (en) | 1943-08-31 | 1944-09-01 | Rotary pump |
Country Status (1)
Country | Link |
---|---|
US (1) | US2403572A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2428619A (en) * | 1944-11-06 | 1947-10-07 | Douglas Norvel | Rotary pump or the like |
US2617362A (en) * | 1948-09-02 | 1952-11-11 | Ben G Parsons | Fluid motor or pump with collapsible chamber |
US2693766A (en) * | 1949-12-13 | 1954-11-09 | Seyler Leon Antoine | Rotary pump of the resilient tube type |
US2768638A (en) * | 1954-07-12 | 1956-10-30 | Badger Meter Mfg Co | Fluid chemical treating system |
US2952210A (en) * | 1958-05-15 | 1960-09-13 | Rohm & Haas | Fluid pump |
US2977890A (en) * | 1956-02-10 | 1961-04-04 | Seyler Leon Antoine | Pumps and compressors of the flexible-tube type |
US3109383A (en) * | 1961-05-08 | 1963-11-05 | John T Muller | Metering device |
US5057278A (en) * | 1990-04-26 | 1991-10-15 | Minnesota Mining And Manufacturing Company | Sterile loop calibration system |
US5171029A (en) * | 1990-04-26 | 1992-12-15 | Minnesota Mining And Manufacturing Company | Seal construction for pump apparatus |
US5278072A (en) * | 1990-04-26 | 1994-01-11 | Minnesota Mining And Manufacturing Company | Calibration system and housing |
WO2014198597A1 (en) * | 2013-06-13 | 2014-12-18 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Pump for delivering a liquid |
-
1944
- 1944-09-01 US US552227A patent/US2403572A/en not_active Expired - Lifetime
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2428619A (en) * | 1944-11-06 | 1947-10-07 | Douglas Norvel | Rotary pump or the like |
US2617362A (en) * | 1948-09-02 | 1952-11-11 | Ben G Parsons | Fluid motor or pump with collapsible chamber |
US2693766A (en) * | 1949-12-13 | 1954-11-09 | Seyler Leon Antoine | Rotary pump of the resilient tube type |
US2768638A (en) * | 1954-07-12 | 1956-10-30 | Badger Meter Mfg Co | Fluid chemical treating system |
US2977890A (en) * | 1956-02-10 | 1961-04-04 | Seyler Leon Antoine | Pumps and compressors of the flexible-tube type |
US2952210A (en) * | 1958-05-15 | 1960-09-13 | Rohm & Haas | Fluid pump |
US3109383A (en) * | 1961-05-08 | 1963-11-05 | John T Muller | Metering device |
US5057278A (en) * | 1990-04-26 | 1991-10-15 | Minnesota Mining And Manufacturing Company | Sterile loop calibration system |
US5171029A (en) * | 1990-04-26 | 1992-12-15 | Minnesota Mining And Manufacturing Company | Seal construction for pump apparatus |
US5278072A (en) * | 1990-04-26 | 1994-01-11 | Minnesota Mining And Manufacturing Company | Calibration system and housing |
US5348706A (en) * | 1990-04-26 | 1994-09-20 | Minnesota Mining And Manufacturing Company | Calibration system and method for making |
US5420038A (en) * | 1990-04-26 | 1995-05-30 | Minnesota Mining And Manufacturing Company | Calibration system and housing |
WO2014198597A1 (en) * | 2013-06-13 | 2014-12-18 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Pump for delivering a liquid |
CN105492770A (en) * | 2013-06-13 | 2016-04-13 | 大陆汽车有限责任公司 | Pump for delivering a liquid |
US20160138589A1 (en) * | 2013-06-13 | 2016-05-19 | Continental Automotive Gmbh | Pump for delivering a liquid |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2403572A (en) | Rotary pump | |
US2623469A (en) | Gear pump | |
US2195812A (en) | Rotary pump or engine | |
GB1177291A (en) | Improvements in or relating to Rotary Positive-Displacement Pumps of the Gyratory-Piston Type | |
US2402995A (en) | Centrifugal pump | |
US2263515A (en) | Circulator and flow valve | |
US2094160A (en) | Seal construction | |
US2353373A (en) | Pump | |
US2231579A (en) | Pump | |
US2666394A (en) | Pump construction | |
US2462481A (en) | Sliding vane pump or motor | |
US2046873A (en) | Rotary pump | |
US2569563A (en) | Centrifugal pump | |
US1666466A (en) | Rotary pump | |
US2759427A (en) | Centrifugal pump | |
US2486690A (en) | Hydraulic unit | |
US2446194A (en) | Pump construction | |
US3038414A (en) | Pump | |
US2976808A (en) | Rotary thrust pump | |
US1756323A (en) | Centrifugal pump | |
US3039397A (en) | Pump | |
US2002862A (en) | Rotary pump | |
US2614874A (en) | Fluid seal | |
US3074350A (en) | Portable pump with interchangeable drive unit | |
US3007349A (en) | Variably settable stroke drive for pumps and the like |