US3752609A - Vane pump with fluid-biased end walls - Google Patents
Vane pump with fluid-biased end walls Download PDFInfo
- Publication number
- US3752609A US3752609A US00227227A US3752609DA US3752609A US 3752609 A US3752609 A US 3752609A US 00227227 A US00227227 A US 00227227A US 3752609D A US3752609D A US 3752609DA US 3752609 A US3752609 A US 3752609A
- Authority
- US
- United States
- Prior art keywords
- base
- cartridge
- cam ring
- cheek plates
- 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
- 238000005086 pumping Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 9
- 239000000945 filler Substances 0.000 claims description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
- F04C15/0023—Axial sealings for working fluid
Definitions
- a balanced vane pump has a body supporting the driveshaft and clamping together the pumping cartridge.
- the cartridge includes an ovoid cam ring and a slotted rotor carrying radially slidable vanes.
- Flexible cheek plates are clamped against the cam ring and pressed toward the rotor and vanes by outlet pressure applied over limited areas defined by pressure pockets surrounding the outlet ports in the cheek plates.
- the present invention aims to provide a vane pump in which the clearances at the faces of the rotor may be adjusted automatically in accordance with changes in outlet pressure and which permits the use of a smaller and lighter pump body than has heretofore been possible.
- the invention consists in a balanced vane pump comprising a first body portion forming a base, a driveshaft journalled in the base, a pumping cartridge supported by the base, a second body portion forming a head clamping the cartridge to the base, a third body portion comprising a cup-like cover secured to the base and enclosing the cartridge and the head, means forming an inlet passage in the cover, means forming an outlet passage in the base, the cartridge comprising a cam ring having an ovoid interior cavity, a rotor driven by the shaft and carrying radially slidable vanes, the rotor and vanes being slightly shorter axially than the cam ring, flexible cheek plates clamped at their peripheries against the sides of the cam ring and providing diametrically opposite arcuate inlet ports and diametrically opposite arcuate outlet ports, means at the interfaces of the cheek plates with the base and the head forming two pairs of pressure pockets surrounding the outlet ports, and elastomeric seals surrounding the pressure pockets.
- FIG. I is a cross section taken on line 1-1 of FIG. 2 of a vane pump incorporating a preferred form of the present invention.
- FIG. 2 is a partial cross section taken on line 2-2 of FIG. 1.
- FIG. 3 is a view taken on line 3--3 of FIG. I.
- FIG. 4 is a perspective view of a pumping cartridge forming part of FIG. I with the cheek plates removed.
- FIG. 5 is a perspective view of a check plate incorporated in the pumping cartridge.
- the body of the pump illustrated in FIGS. 1 and 2 includes a main or base section in which is incorporated a bearing 12 and seal 14 for the support of a rotary driveshaft 16.
- the base portion It) incorporates a pump outlet passage 18.
- a second body part 20 comprises a head which is secured to the base 10 by screws 22 and clamps together a pumping cartridge 24.
- a third body portion 26 Surrounding the head 20 and cartridge 24 is a third body portion 26 which is of cup-like configuration and has an inlet passage 28. Bolts 30 secure the cover 26 to the base 10.
- the pumping cartridge 24 includes a cam ring 32, FIG. 4, having an ovoid cavity 34 and a slotted rotor 36 slidably splined to the driveshaft l6, and carrying radially slidable vanes 38.
- the axial dimensions of the rotor and vanes are somewhat smaller than the axial width of the cam ring 32 by an amount which is somewhat larger than the minimum allowable clearance at full rated pressure.
- the pumping cartridge also includes a pair of cheek plates 40 which are preferably formed of a bimetallic sheet material, such as steel and bronze, with the steel forming a resilient flexible support for the bronze bearing material adjacent to the rotor and vanes.
- the check plates may be formed inexpensively by a punching operation which, besides the usual bolt holes and shaft hole, forms a pair of diametrically opposite outlet ports 42 which register with two branches of the outlet passage 18 in the base 10. Also punched out of the plate 40 are a pair of diametrically opposite inlet ports 44 which open to the inlet passage 28. Other passages, such as 46and 48, may be punched out to provide communication between the bottom of the vane slots in the rotor and the appropriateinlet and outlet passages.
- the clamping faces of the base 10 and of the head 20 are each provided with a diametrically opposite pair of pressure pockets 50, FIG. 2, which surround the outlet ports 42 and extend arcuately approximately twice the length of the ports 42.
- Each pressure pocket has an irregularly curved outline within which an elastomeric seal 52 is located around the periphery. This is preferably a simple O-ring distorted by means of a filler plate 54 (not shown in FIG. 1) which holds the O-ring into contact with the periphery of the pressure pocket 50.
- fluid entering the inlet 28 is handled by the pumping cartridge 24 in the well known manner and delivered to the outlet passage 18.
- the clearance between the cheek plates 40 and the rotor and vanes is automatically adjusted by outlet pressure applied in the pockets 50 to the outer faces of the cheek plates 40 over a limited area surrounding each outlet port 42.
- the modulus of the backing material of the cheek plates and their thickness is so chosen that at maximum rated pressure, the deflection of the' cheek plates inwardly closes up the clearance at the face of the rotor to a value commensurate with the film strength of the oil, the cheek plates bending as cantilevers in the arcs between the inlet and outlet ports. In this way, leakage along the end faces of the rotor and vanes may be closely controlled to maintain both high volumetric and high mechanical efficiency.
- a balanced vane pump comprising a first body portion forming a base, a driveshaft journalled in the base, a pumping cartridge supported by the base, a second body portion forming a head clamping the cartridge to the base, a third body portion comprising a cup-like cover secured to the base and enclosing the cartridge and the head, means forming an inlet passage in the cover, means forming an outlet passage in the base, the cartridge comprising a cam ring having an ovoid interior cavity, a rotor driven by the shaft and carrying radially slidable vanes, the rotor and vanes being slightly shorter axially than the cam ring, flexible cheek plates clamped at their peripheries against the sides of the cam ring and providing diametrically opposite arcuate inlet ports and diametrically opposite arcuate outlet ports, means at the interfaces of the cheek plates with the base and the head forming two pairs of pressure pockets surrounding the outlet ports, and elastomeric seals surrounding the pressure pockets.
- cheek plates are of laminar material including a layer of bearing material supported on a resilient backing material.
- the pockets comprise recesses of uniform depth and having irregularly curved outlines, the elastomeric seals comprising normally circular O-rings and filler pieces conforming to the outlines of the recesses and holding the O-ring against the peripheries of the pockets.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Hydraulic Motors (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US22722772A | 1972-02-17 | 1972-02-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3752609A true US3752609A (en) | 1973-08-14 |
Family
ID=22852279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00227227A Expired - Lifetime US3752609A (en) | 1972-02-17 | 1972-02-17 | Vane pump with fluid-biased end walls |
Country Status (9)
Country | Link |
---|---|
US (1) | US3752609A (xx) |
JP (1) | JPS5148802B2 (xx) |
AU (1) | AU469183B2 (xx) |
CA (1) | CA979737A (xx) |
DE (1) | DE2306064C2 (xx) |
FR (1) | FR2172731A5 (xx) |
GB (1) | GB1415544A (xx) |
IT (1) | IT976896B (xx) |
SE (1) | SE377831B (xx) |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2547467A1 (de) * | 1974-10-23 | 1976-05-06 | Sperry Rand Corp | Hydraulische rotationsfluegelmaschine |
US4008002A (en) * | 1975-11-07 | 1977-02-15 | Sperry Rand Corporation | Vane pump with speed responsive check plate deflection |
US4072451A (en) * | 1976-10-12 | 1978-02-07 | Sperry Rand Corporation | Power transmission |
DE2902301A1 (de) * | 1978-01-27 | 1979-08-16 | Nippon Piston Ring Co Ltd | Kreiselpumpe |
DE3018649A1 (de) * | 1980-05-16 | 1981-11-26 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Hochdruckpumpe |
US4376620A (en) * | 1980-09-08 | 1983-03-15 | Westinghouse Electric Corp. | Seawater hydraulic vane-type motor |
US4717320A (en) * | 1978-05-26 | 1988-01-05 | White Hollis Newcomb Jun | Gerotor motor balancing plate |
US4770612A (en) * | 1986-07-11 | 1988-09-13 | Vickers Systems Gmbh | Steering power-assistance arrangement |
DE4109149A1 (de) * | 1991-03-20 | 1992-09-24 | Rexroth Mannesmann Gmbh | Steuerscheibe fuer fluegelzellenpumpe |
US5201647A (en) * | 1991-10-23 | 1993-04-13 | Vickers, Incorporated | Rotary hydraulic vane device having a shaf seal |
EP0540067A2 (en) * | 1991-08-23 | 1993-05-05 | Van Doorne's Transmissie B.V. | Rotary pump |
US5222886A (en) * | 1991-03-20 | 1993-06-29 | Mannesmann Rexroth Gmbh | Cheek plate for a vane pump |
WO1998046884A1 (de) * | 1997-04-15 | 1998-10-22 | Luk Fahrzeug-Hydraulik Gmbh & Co. Kg | Flügelzellenpumpe |
FR2774134A1 (fr) * | 1998-01-23 | 1999-07-30 | Luk Fahrzeug Hydraulik | Pompe |
US6227816B1 (en) * | 1998-06-24 | 2001-05-08 | Luk Fahrzeug-Hydraulik Gmbh & Co. Kg | Hydraulic delivery device |
US6481990B2 (en) * | 2001-03-21 | 2002-11-19 | Delphi Technologies, Inc. | Hydraulically balanced multi-vane hydraulic motor |
US20100186605A1 (en) * | 2009-01-26 | 2010-07-29 | Deron Lichte | Heated humidified food cabinet |
US20100278676A1 (en) * | 2007-03-20 | 2010-11-04 | Arkadiusz Tomzik | Gear wheel pump |
EP3521560A3 (de) * | 2015-04-17 | 2019-08-21 | Schwäbische Hüttenwerke Automotive GmbH | Pumpe mit axialer druckfeder und dichtung |
US11608828B2 (en) | 2018-12-28 | 2023-03-21 | Schwäbische Hüttenwerke Automotive GmbH | Rotary pump with axial compensation, outlet gasket for a pump and pre-fitted pump unit |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2126656A (en) * | 1982-09-09 | 1984-03-28 | Davall Moulded Gears | Fluid pump or meter |
FR2592920B1 (fr) * | 1986-01-16 | 1989-06-02 | Penitot Pierre | Pompe volumetrique a multifonctions du type a piston oscillant. |
DE3921735A1 (de) * | 1989-07-01 | 1991-01-10 | Bayerische Motoren Werke Ag | Fluegelzellenpumpe mit mehreren druck- oder sauganschluessen |
GB9417477D0 (en) * | 1994-08-31 | 1994-10-19 | Mcdonald Donald A | Rotary hermetic refrigeration motor/compressor |
DE10027813A1 (de) * | 2000-06-05 | 2001-12-13 | Luk Fahrzeug Hydraulik | Pumpe |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2544987A (en) * | 1947-01-04 | 1951-03-13 | Vickers Inc | Power transmission |
US2924182A (en) * | 1955-08-31 | 1960-02-09 | American Brake Shoe Co | Fluid pressure energy translating device |
US3193190A (en) * | 1965-07-06 | Lindberg vacuum pump | ||
US3194168A (en) * | 1958-10-06 | 1965-07-13 | Rosaen Borje O | Fluid pumps |
US3204565A (en) * | 1962-05-09 | 1965-09-07 | Sperry Rand Corp | Power transmission |
US3303793A (en) * | 1965-08-17 | 1967-02-14 | Morita Nobuo | Rotary gear pump |
US3479962A (en) * | 1967-11-22 | 1969-11-25 | Sperry Rand Corp | Power transmission |
US3549288A (en) * | 1969-03-05 | 1970-12-22 | Ford Motor Co | Positive displacement slipper pump with flangeless drive shaft |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2842064A (en) * | 1954-05-24 | 1958-07-08 | Gunnar A Wahlmark | Hydraulic pressure unit |
US3200752A (en) * | 1963-05-16 | 1965-08-17 | Thompson Ramo Wooldridge Inc | Stack-up slipper pump with integral flow control valve |
US3499390A (en) * | 1968-04-11 | 1970-03-10 | Parker Hannifin Corp | Rotary pump |
US3632238A (en) * | 1969-09-05 | 1972-01-04 | Eaton Yale & Towne | Pump assembly |
-
1972
- 1972-02-17 US US00227227A patent/US3752609A/en not_active Expired - Lifetime
-
1973
- 1973-01-11 AU AU50995/73A patent/AU469183B2/en not_active Expired
- 1973-01-15 IT IT47700/73A patent/IT976896B/it active
- 1973-01-17 CA CA161,438A patent/CA979737A/en not_active Expired
- 1973-02-08 DE DE2306064A patent/DE2306064C2/de not_active Expired
- 1973-02-13 SE SE7302028A patent/SE377831B/xx unknown
- 1973-02-16 JP JP48019139A patent/JPS5148802B2/ja not_active Expired
- 1973-02-16 FR FR7305544A patent/FR2172731A5/fr not_active Expired
- 1973-02-16 GB GB762473A patent/GB1415544A/en not_active Expired
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3193190A (en) * | 1965-07-06 | Lindberg vacuum pump | ||
US2544987A (en) * | 1947-01-04 | 1951-03-13 | Vickers Inc | Power transmission |
US2924182A (en) * | 1955-08-31 | 1960-02-09 | American Brake Shoe Co | Fluid pressure energy translating device |
US3194168A (en) * | 1958-10-06 | 1965-07-13 | Rosaen Borje O | Fluid pumps |
US3204565A (en) * | 1962-05-09 | 1965-09-07 | Sperry Rand Corp | Power transmission |
US3303793A (en) * | 1965-08-17 | 1967-02-14 | Morita Nobuo | Rotary gear pump |
US3479962A (en) * | 1967-11-22 | 1969-11-25 | Sperry Rand Corp | Power transmission |
US3549288A (en) * | 1969-03-05 | 1970-12-22 | Ford Motor Co | Positive displacement slipper pump with flangeless drive shaft |
Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2547467A1 (de) * | 1974-10-23 | 1976-05-06 | Sperry Rand Corp | Hydraulische rotationsfluegelmaschine |
US4008002A (en) * | 1975-11-07 | 1977-02-15 | Sperry Rand Corporation | Vane pump with speed responsive check plate deflection |
US4072451A (en) * | 1976-10-12 | 1978-02-07 | Sperry Rand Corporation | Power transmission |
FR2367930A1 (fr) * | 1976-10-12 | 1978-05-12 | Sperry Rand Corp | Flasque anti-friction pour pompe ou moteur hydraulique a palettes |
DE2902301A1 (de) * | 1978-01-27 | 1979-08-16 | Nippon Piston Ring Co Ltd | Kreiselpumpe |
US4717320A (en) * | 1978-05-26 | 1988-01-05 | White Hollis Newcomb Jun | Gerotor motor balancing plate |
DE3018649A1 (de) * | 1980-05-16 | 1981-11-26 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Hochdruckpumpe |
US4376620A (en) * | 1980-09-08 | 1983-03-15 | Westinghouse Electric Corp. | Seawater hydraulic vane-type motor |
US4770612A (en) * | 1986-07-11 | 1988-09-13 | Vickers Systems Gmbh | Steering power-assistance arrangement |
US5222886A (en) * | 1991-03-20 | 1993-06-29 | Mannesmann Rexroth Gmbh | Cheek plate for a vane pump |
DE4109149A1 (de) * | 1991-03-20 | 1992-09-24 | Rexroth Mannesmann Gmbh | Steuerscheibe fuer fluegelzellenpumpe |
DE4109149C3 (de) * | 1991-03-20 | 1999-01-14 | Mannesmann Rexroth Ag | Steuerscheibe für Flügelzellenpumpe |
US5308287A (en) * | 1991-08-23 | 1994-05-03 | Van Doorne's Transmissie B.V. | Rotary pump |
EP0540067A3 (en) * | 1991-08-23 | 1993-05-12 | Van Doorne's Transmissie B.V. | Rotary pump |
EP0540067A2 (en) * | 1991-08-23 | 1993-05-05 | Van Doorne's Transmissie B.V. | Rotary pump |
US5201647A (en) * | 1991-10-23 | 1993-04-13 | Vickers, Incorporated | Rotary hydraulic vane device having a shaf seal |
WO1998046884A1 (de) * | 1997-04-15 | 1998-10-22 | Luk Fahrzeug-Hydraulik Gmbh & Co. Kg | Flügelzellenpumpe |
GB2329678A (en) * | 1997-04-15 | 1999-03-31 | Luk Fahrzeug Hydraulik | Vane-cell pump |
US6123532A (en) * | 1997-04-15 | 2000-09-26 | Luk Fahrzeug--Hydraulik GmbH & Co. KG | Vane pump having a pressure plate which is concave when unloaded |
GB2329678B (en) * | 1997-04-15 | 2001-03-14 | Luk Fahrzeug Hydraulik | Vane pump |
FR2774134A1 (fr) * | 1998-01-23 | 1999-07-30 | Luk Fahrzeug Hydraulik | Pompe |
US6227816B1 (en) * | 1998-06-24 | 2001-05-08 | Luk Fahrzeug-Hydraulik Gmbh & Co. Kg | Hydraulic delivery device |
GB2340889B (en) * | 1998-06-24 | 2003-04-23 | Luk Fahrzeug Hydraulik | Hydraulic delivery service |
US6481990B2 (en) * | 2001-03-21 | 2002-11-19 | Delphi Technologies, Inc. | Hydraulically balanced multi-vane hydraulic motor |
US20100278676A1 (en) * | 2007-03-20 | 2010-11-04 | Arkadiusz Tomzik | Gear wheel pump |
US9004890B2 (en) * | 2007-03-20 | 2015-04-14 | Oerlikon Textile Gmbh & Co. Kg | Gear wheel pump |
US20100186605A1 (en) * | 2009-01-26 | 2010-07-29 | Deron Lichte | Heated humidified food cabinet |
EP3521560A3 (de) * | 2015-04-17 | 2019-08-21 | Schwäbische Hüttenwerke Automotive GmbH | Pumpe mit axialer druckfeder und dichtung |
EP3081741B1 (de) | 2015-04-17 | 2019-11-13 | Schwäbische Hüttenwerke Automotive GmbH | Pumpe mit axialer druckfeder und dichtung |
US11608828B2 (en) | 2018-12-28 | 2023-03-21 | Schwäbische Hüttenwerke Automotive GmbH | Rotary pump with axial compensation, outlet gasket for a pump and pre-fitted pump unit |
Also Published As
Publication number | Publication date |
---|---|
DE2306064C2 (de) | 1983-08-18 |
FR2172731A5 (xx) | 1973-09-28 |
JPS4890004A (xx) | 1973-11-24 |
IT976896B (it) | 1974-09-10 |
GB1415544A (en) | 1975-11-26 |
JPS5148802B2 (xx) | 1976-12-23 |
AU469183B2 (en) | 1976-02-05 |
DE2306064A1 (de) | 1973-08-30 |
SE377831B (xx) | 1975-07-28 |
CA979737A (en) | 1975-12-16 |
AU5099573A (en) | 1974-07-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SPERRY CORPORATION Free format text: CHANGE OF NAME;ASSIGNOR:SPERRY RAND CORPORATION;REEL/FRAME:003794/0122 Effective date: 19790824 |
|
AS | Assignment |
Owner name: VICKERS, INCORPORATED TROY, MI A DE CORP Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE NOVEMBER 2, 1983;ASSIGNOR:SPERRY CORPORATION A DE CORP.;REEL/FRAME:004337/0889 Effective date: 19831102 Owner name: VICKERS, INCORPORATED,MICHIGAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SPERRY CORPORATION A DE CORP.;REEL/FRAME:004337/0889 Effective date: 19831102 |