US3752609A - Vane pump with fluid-biased end walls - Google Patents

Vane pump with fluid-biased end walls Download PDF

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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
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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
Application number
US00227227A
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English (en)
Inventor
A Niemiec
R Pettibone
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Vickers Inc
Original Assignee
Sperry Rand Corp
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Filing date
Publication date
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Publication of US3752609A publication Critical patent/US3752609A/en
Assigned to SPERRY CORPORATION reassignment SPERRY CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: SPERRY RAND CORPORATION
Assigned to VICKERS, INCORPORATED reassignment VICKERS, INCORPORATED ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SPERRY CORPORATION A DE CORP.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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.

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  • 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)
US00227227A 1972-02-17 1972-02-17 Vane pump with fluid-biased end walls Expired - Lifetime US3752609A (en)

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 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5148802B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AU (1) AU469183B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA979737A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2306064C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2172731A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1415544A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT976896B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE377831B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (20)

* Cited by examiner, † Cited by third party
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
EP0540067A3 (en) * 1991-08-23 1993-05-12 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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (8)

* Cited by examiner, † Cited by third party
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 (29)

* Cited by examiner, † Cited by third party
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
DE4109149A1 (de) * 1991-03-20 1992-09-24 Rexroth Mannesmann Gmbh Steuerscheibe fuer fluegelzellenpumpe
US5222886A (en) * 1991-03-20 1993-06-29 Mannesmann Rexroth Gmbh Cheek plate for a vane pump
DE4109149C3 (de) * 1991-03-20 1999-01-14 Mannesmann Rexroth Ag Steuerscheibe für Flügelzellenpumpe
EP0540067A3 (en) * 1991-08-23 1993-05-12 Van Doorne's Transmissie B.V. Rotary pump
US5308287A (en) * 1991-08-23 1994-05-03 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
GB2340889B (en) * 1998-06-24 2003-04-23 Luk Fahrzeug Hydraulik Hydraulic delivery service
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
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
JPS5148802B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1976-12-23
AU469183B2 (en) 1976-02-05
GB1415544A (en) 1975-11-26
AU5099573A (en) 1974-07-11
DE2306064A1 (de) 1973-08-30
IT976896B (it) 1974-09-10
JPS4890004A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-11-24
CA979737A (en) 1975-12-16
DE2306064C2 (de) 1983-08-18
SE377831B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-07-28
FR2172731A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-09-28

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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