FR2418879A1 - HYDRAULIC PUMP - Google Patents

HYDRAULIC PUMP

Info

Publication number
FR2418879A1
FR2418879A1 FR7905236A FR7905236A FR2418879A1 FR 2418879 A1 FR2418879 A1 FR 2418879A1 FR 7905236 A FR7905236 A FR 7905236A FR 7905236 A FR7905236 A FR 7905236A FR 2418879 A1 FR2418879 A1 FR 2418879A1
Authority
FR
France
Prior art keywords
housing
cam
plate
rotating
hydraulic 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.)
Granted
Application number
FR7905236A
Other languages
French (fr)
Other versions
FR2418879B1 (en
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.)
Toyoda Koki KK
Original Assignee
Toyoda Koki KK
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 Toyoda Koki KK filed Critical Toyoda Koki KK
Publication of FR2418879A1 publication Critical patent/FR2418879A1/en
Application granted granted Critical
Publication of FR2418879B1 publication Critical patent/FR2418879B1/fr
Granted 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
    • F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)

Abstract

L'invention concerne une pompe hydraulique du type à ailettes. Celle-ci comprend un carter de pompe 10, 11 logeant une came en forme d'anneaux non rotative 17 et deux plaques latérales non rotatives axialement coulissantes 15 et 16. Un rotor 20 est logé dans un trou interne de la came 17 et envoie, en tournant, du fluide sous pression à une chambre 32 délimitée par le carter 10 et la plaque 16, laquelle pousse la première plaque 15 sur un côté de la came 17. La première et la seconde plaque délimitent entre elles une cavité de dérivation 30 qui communique avec une soupape de réglage de débit 35 envoyant du fluide dérivé à une zone d'entrée non pressurisée. L'invention s'applique aux dispositifs d'assistance de direction pour automobiles.The invention relates to a hydraulic pump of the vane type. This comprises a pump housing 10, 11 housing a non-rotating ring-shaped cam 17 and two axially sliding non-rotating side plates 15 and 16. A rotor 20 is housed in an internal hole of the cam 17 and sends, by rotating, pressurized fluid to a chamber 32 delimited by the housing 10 and the plate 16, which pushes the first plate 15 on one side of the cam 17. The first and the second plate define between them a bypass cavity 30 which communicates with a flow control valve 35 supplying bypass fluid to an unpressurized inlet zone. The invention applies to steering assistance devices for automobiles.

FR7905236A 1978-03-02 1979-02-28 HYDRAULIC PUMP Granted FR2418879A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2430078A JPS54116708A (en) 1978-03-02 1978-03-02 Oil pressure pump

Publications (2)

Publication Number Publication Date
FR2418879A1 true FR2418879A1 (en) 1979-09-28
FR2418879B1 FR2418879B1 (en) 1982-06-04

Family

ID=12134309

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7905236A Granted FR2418879A1 (en) 1978-03-02 1979-02-28 HYDRAULIC PUMP

Country Status (5)

Country Link
JP (1) JPS54116708A (en)
CA (1) CA1134202A (en)
DE (1) DE2907979C2 (en)
FR (1) FR2418879A1 (en)
GB (1) GB2015648B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088811B1 (en) * 1982-03-13 1985-07-31 Vickers Systems GmbH Sliding vane pump, particularly for power steering
JPS60203579A (en) * 1984-03-29 1985-10-15 Honda Motor Co Ltd Power steering system for car
CS260235B1 (en) * 1986-10-21 1988-12-15 Jiri Rybnicek Positive-displacement sliding-vane pump

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2782718A (en) * 1955-05-04 1957-02-26 Vickers Inc Speed-compensated flow control
USRE27241E (en) * 1970-02-24 1971-12-14 Porting for balanced hydraulic roller pump
FR2112894A5 (en) * 1970-11-05 1972-06-23 Trw Inc
FR2118446A5 (en) * 1970-12-17 1972-07-28 Trw Inc
US3806273A (en) * 1971-10-06 1974-04-23 Trw Inc Pump with means for supercharging the pump inlet

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125028A (en) * 1964-03-17 rohde
US2827854A (en) * 1953-03-16 1958-03-25 New York Air Brake Co Variable speed pump with non-graduating by-pass valve control

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2782718A (en) * 1955-05-04 1957-02-26 Vickers Inc Speed-compensated flow control
USRE27241E (en) * 1970-02-24 1971-12-14 Porting for balanced hydraulic roller pump
FR2112894A5 (en) * 1970-11-05 1972-06-23 Trw Inc
FR2118446A5 (en) * 1970-12-17 1972-07-28 Trw Inc
US3806273A (en) * 1971-10-06 1974-04-23 Trw Inc Pump with means for supercharging the pump inlet

Also Published As

Publication number Publication date
DE2907979A1 (en) 1979-09-06
FR2418879B1 (en) 1982-06-04
JPS54116708A (en) 1979-09-11
DE2907979C2 (en) 1985-05-30
GB2015648B (en) 1982-04-28
GB2015648A (en) 1979-09-12
CA1134202A (en) 1982-10-26

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Legal Events

Date Code Title Description
ST Notification of lapse