GB1328728A - Rotary positive displacement pump - Google Patents

Rotary positive displacement pump

Info

Publication number
GB1328728A
GB1328728A GB2572071*A GB2572071A GB1328728A GB 1328728 A GB1328728 A GB 1328728A GB 2572071 A GB2572071 A GB 2572071A GB 1328728 A GB1328728 A GB 1328728A
Authority
GB
United Kingdom
Prior art keywords
passage
cam ring
pressure
april
forces
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
Application number
GB2572071*A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Motor Co Ltd
Ford Motor Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Motor Co Ltd
Publication of GB1328728A publication Critical patent/GB1328728A/en
Expired legal-status Critical Current

Links

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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
    • F04C14/223—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam
    • F04C14/226—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam by pivoting the cam around an eccentric axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/062—Details, component parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)

Abstract

1328728 Rotary positive-displacement pumps FORD MOTOR CO Ltd 19 April 1971 [2 April 1970] 25720/71 Heading F1F An hydraulic pump has a rotor 36 with spring- loaded slippers 40 that engage with a cam ring 22, which has a pivot extension 28 and carrier pins 34, 55 abutting a fixed housing 10 to form pressure chambers. High and low pressure ports 48, 44 are disposed in the housing as shown, the port 48 being connected to a hydro-kinetic torqueconverter (not shown). During normal operation pressure is applied to the exterior of the cam ring through a passage 80 from the port 44 and through a passage 64 and a further passage 66 controlled by a valve element 70, the forces thus acting on the ring being balanced. When the output pressure falls an externally-applied force moves the element 70 in opposition to the pressure acting thereon to partially shut off the passage 66 and thus unbalance said forces. The corresponding displacement of the cam ring increases the rate of flow and thereby causes the element 70 to re-open the passage 66. Modified forms of the pump, Figs. 3 and 4 (not shown), differ chiefly in regard to the pivot for the cam ring and the valve element and related parts.
GB2572071*A 1970-04-02 1971-04-19 Rotary positive displacement pump Expired GB1328728A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2498570A 1970-04-02 1970-04-02

Publications (1)

Publication Number Publication Date
GB1328728A true GB1328728A (en) 1973-08-30

Family

ID=21823409

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2572071*A Expired GB1328728A (en) 1970-04-02 1971-04-19 Rotary positive displacement pump

Country Status (4)

Country Link
US (1) US3656869A (en)
CA (1) CA935328A (en)
DE (1) DE2115488A1 (en)
GB (1) GB1328728A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2235500A (en) * 1989-07-03 1991-03-06 Voith Gmbh J M Hydrostatic displacement machine
US7108493B2 (en) 2002-03-27 2006-09-19 Argo-Tech Corporation Variable displacement pump having rotating cam ring

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4342545A (en) * 1978-07-24 1982-08-03 General Motors Corporation Variable displacement pump
JPS5958185A (en) * 1982-09-28 1984-04-03 Nachi Fujikoshi Corp Variable delivery pump
DE3247885C2 (en) * 1982-12-23 1986-12-18 Mannesmann Rexroth GmbH, 8770 Lohr Vane or radial piston pump
GB8518558D0 (en) * 1985-07-23 1985-08-29 Hobourn Eaton Ltd Variable delivery pumps
US5538400A (en) * 1992-12-28 1996-07-23 Jidosha Kiki Co., Ltd. Variable displacement pump
JP2932236B2 (en) * 1994-02-28 1999-08-09 自動車機器株式会社 Variable displacement pump
JPH09273487A (en) * 1996-04-08 1997-10-21 Jidosha Kiki Co Ltd Variable displacement type pump
JP2000087877A (en) * 1998-09-10 2000-03-28 Bosch Braking Systems Co Ltd Variable displacement pump
DE102005006703A1 (en) * 2005-02-15 2006-08-17 Audi Ag Apparatus and method for lubricating oil supply
WO2007087704A1 (en) 2006-01-31 2007-08-09 Magna Powertrain Inc. Variable displacement variable pressure vane pump system
CN104813032B (en) * 2012-11-19 2016-11-23 麦格纳动力系巴德霍姆堡有限责任公司 Motor vehicles vacuum pump
DE102016200893A1 (en) * 2016-01-22 2017-07-27 Magna Powertrain Bad Homburg GmbH pumps Fields

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433484A (en) * 1944-11-24 1947-12-30 Borg Warner Movable vane variable displacement pump
US2628567A (en) * 1946-12-12 1953-02-17 Houdaille Hershey Corp Reversible variable capacity fluid pump
US2635551A (en) * 1948-03-18 1953-04-21 Houdaille Hershey Corp Adjustable variable displacement pump
US2724339A (en) * 1949-06-25 1955-11-22 Houdaille Hershey Corp Automatically and selectively adjustable variable displacement pump
US2985109A (en) * 1955-02-02 1961-05-23 Thompson Grinder Co Hydraulic pump
US2811926A (en) * 1956-08-08 1957-11-05 Gilbert & Barker Mfg Co Variable-capacity rotary-vane pump

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2235500A (en) * 1989-07-03 1991-03-06 Voith Gmbh J M Hydrostatic displacement machine
GB2235500B (en) * 1989-07-03 1993-03-31 Voith Gmbh J M Hydrostatic displacement engine
US7491043B2 (en) 2001-04-05 2009-02-17 Argo-Tech Corporation Variable displacement pump having a rotating cam ring
US8740593B2 (en) 2001-04-05 2014-06-03 Eaton Industrial Corporation Variable displacement pump having a rotating cam ring
US9435338B2 (en) 2001-04-05 2016-09-06 Eaton Industrial Corporation Variable displacement pump having rotating cam ring
US7108493B2 (en) 2002-03-27 2006-09-19 Argo-Tech Corporation Variable displacement pump having rotating cam ring

Also Published As

Publication number Publication date
US3656869A (en) 1972-04-18
CA935328A (en) 1973-10-16
DE2115488A1 (en) 1971-10-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee