FR2345603A1 - Vehicle hydraulic circuit pump cut off system - incorporates bistable diaphragm or two position electromagnetic valve operating at set levels - Google Patents

Vehicle hydraulic circuit pump cut off system - incorporates bistable diaphragm or two position electromagnetic valve operating at set levels

Info

Publication number
FR2345603A1
FR2345603A1 FR7608468A FR7608468A FR2345603A1 FR 2345603 A1 FR2345603 A1 FR 2345603A1 FR 7608468 A FR7608468 A FR 7608468A FR 7608468 A FR7608468 A FR 7608468A FR 2345603 A1 FR2345603 A1 FR 2345603A1
Authority
FR
France
Prior art keywords
hydraulic circuit
chamber
vehicle hydraulic
incorporates
electromagnetic valve
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
FR7608468A
Other languages
French (fr)
Other versions
FR2345603B1 (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.)
Automobiles Citroen SA
Original Assignee
Automobiles Citroen SA
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 Automobiles Citroen SA filed Critical Automobiles Citroen SA
Priority to FR7608468A priority Critical patent/FR2345603A1/en
Publication of FR2345603A1 publication Critical patent/FR2345603A1/en
Application granted granted Critical
Publication of FR2345603B1 publication Critical patent/FR2345603B1/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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/225—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

A pump for supplying a pressure accumulator in a vehicle hydraulic circuit has a pump chamber with an eccentric disc (6) while reciprocates a vertical spindle (3) so at to raise and lower a valve disc (12) against a spring (17) to allow fluid to pass to a horizontal channel (18) between feed and delivery tubes (23, 34) at opposite ends of the housing. The block (2) through which the pump spindle passes has an side outlet (8) which slopes upwards to a large chamber on the feed side of the horizontal channel. This chamber contains a diaphragm (37) which acts as a bistable element to open or close communication between one end and the other of the chamber so as to cut off or open the supply to the pressure accumulator when upper or lower pressure limits are exceeded. An alternative design uses a two position electromagnetically operated system.
FR7608468A 1976-03-24 1976-03-24 Vehicle hydraulic circuit pump cut off system - incorporates bistable diaphragm or two position electromagnetic valve operating at set levels Granted FR2345603A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7608468A FR2345603A1 (en) 1976-03-24 1976-03-24 Vehicle hydraulic circuit pump cut off system - incorporates bistable diaphragm or two position electromagnetic valve operating at set levels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7608468A FR2345603A1 (en) 1976-03-24 1976-03-24 Vehicle hydraulic circuit pump cut off system - incorporates bistable diaphragm or two position electromagnetic valve operating at set levels

Publications (2)

Publication Number Publication Date
FR2345603A1 true FR2345603A1 (en) 1977-10-21
FR2345603B1 FR2345603B1 (en) 1978-09-01

Family

ID=9170848

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7608468A Granted FR2345603A1 (en) 1976-03-24 1976-03-24 Vehicle hydraulic circuit pump cut off system - incorporates bistable diaphragm or two position electromagnetic valve operating at set levels

Country Status (1)

Country Link
FR (1) FR2345603A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462591A1 (en) * 1979-07-25 1981-02-13 Zahnradfabrik Friedrichshafen HIGH PRESSURE PUMP WITH PRESSURE REGULATOR
US5165865A (en) * 1990-04-11 1992-11-24 Robert Bosch Gmbh Intake neck connection for a hydraulic pump

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2221673A1 (en) * 1973-03-15 1974-10-11 Parker Hannifin Corp

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2221673A1 (en) * 1973-03-15 1974-10-11 Parker Hannifin Corp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462591A1 (en) * 1979-07-25 1981-02-13 Zahnradfabrik Friedrichshafen HIGH PRESSURE PUMP WITH PRESSURE REGULATOR
US5165865A (en) * 1990-04-11 1992-11-24 Robert Bosch Gmbh Intake neck connection for a hydraulic pump

Also Published As

Publication number Publication date
FR2345603B1 (en) 1978-09-01

Similar Documents

Publication Publication Date Title
GB2323130A (en) Pressure control system for a variable displacement hydraulic pump
ES2006279A6 (en) Apparatus for controlling start up and stop down of a hydraulic pump.
FR2345603A1 (en) Vehicle hydraulic circuit pump cut off system - incorporates bistable diaphragm or two position electromagnetic valve operating at set levels
GB1270485A (en) Hydro-pneumatic suspension unit with automatic level regulation
JPS56104186A (en) Flow controller for power steering working fluid
ES2079264A2 (en) Improvements in the regulation of fluid conditioning stations.
DE50113387D1 (en) Gear pump with a flow rate changing displacement unit
JPS5786605A (en) Hydraulic pressure proportional electro-magnetic valve
JPS5311306A (en) Pump unit
ATE1206T1 (en) GAS PRESSURE REGULATOR.
DE3665840D1 (en) Two circuit fluid pressure control valves
IT1218214B (en) Pressure regulation hydraulic valve with electric drive
ATE661T1 (en) GAS PRESSURE REGULATOR.
IT7921787A0 (en) VALVE TO REGULATE THE FLOW OF A PRESSURE FLUID, INCORPORATING AN AUTOMATIC BLOCK DEVICE FOR MAXIMUM PRESSURE.
JPS57191485A (en) Pressure switch controlling type pump
ATE8700T1 (en) GAS PRESSURE REGULATOR.
EP0092315A3 (en) Hydraulic pump control
FR2344378A1 (en) Hydraulic oscillator with valve movement control - has piston communicating between channel and chamber pocket when piston moves to end of displacement in one direction
JPS5586905A (en) Directional control valve with pressure compensation
GB1384085A (en) Piston pump for hydraulic systems
ES460613A1 (en) Variable delivery highhpressure pumps
FR2365467A1 (en) Trailer braking force regulator - has piston to operate regulator and relay valves connected to second piston which operates relief valve
FR2288261A1 (en) Self regulating fluid control valve - float which rises under increased pressure reduces flow
FR2244654A1 (en) Press regulating valve for vehicle suspension - plunger system reduces rear wheel press. when front wheel press. falls
FR2228389A5 (en) Spray pump for low viscosity lubricant - piston has low pressure and differential high pressure portions

Legal Events

Date Code Title Description
DL Decision of the director general to leave to make available licences of right
ST Notification of lapse