FR2382358A1 - PRESSURE REDUCER FOR BRAKING CIRCUITS OF PRESSURE-ACTED MOTOR VEHICLES - Google Patents

PRESSURE REDUCER FOR BRAKING CIRCUITS OF PRESSURE-ACTED MOTOR VEHICLES

Info

Publication number
FR2382358A1
FR2382358A1 FR7805838A FR7805838A FR2382358A1 FR 2382358 A1 FR2382358 A1 FR 2382358A1 FR 7805838 A FR7805838 A FR 7805838A FR 7805838 A FR7805838 A FR 7805838A FR 2382358 A1 FR2382358 A1 FR 2382358A1
Authority
FR
France
Prior art keywords
chamber
pressure
motor vehicles
distribution
braking circuits
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
FR7805838A
Other languages
French (fr)
Other versions
FR2382358B1 (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.)
Graubremse GmbH
Original Assignee
Graubremse GmbH
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 Graubremse GmbH filed Critical Graubremse GmbH
Publication of FR2382358A1 publication Critical patent/FR2382358A1/en
Application granted granted Critical
Publication of FR2382358B1 publication Critical patent/FR2382358B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/18—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution
    • B60T8/1812—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution characterised by the means for pressure reduction
    • B60T8/1825—Means for changing the diaphragm area submitted to pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/28—Valves specially adapted therefor
    • B60T11/34—Pressure reducing or limiting valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/18—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution
    • B60T8/1806—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution characterised by the calibration process or the means therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Braking Arrangements (AREA)
  • Braking Systems And Boosters (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)

Abstract

a. Réducteur de pression pour circuit de freinage de véhicules automobiles actionné par un fluide sous pression, comprenant un piston différentiel soumis à l'action de la pression de commande sur l'une de ses surfaces actives partielles et une chambre de distribution prévue sur l'autre côté du piston différentiel, ainsi qu'une soupape de décharge comprenant une chambre d'admission et une chambre de sortie, supportée par un ressort réglable et présentant sur son côté arrière une surface active partielle soumise à l'action du fluide sous pression qui lui parvient b. La chambre de distribution 15 est isolée de la chambre de freinage 10, laquelle est en liaison avec la chambre d'admission 28 de la soupape de décharge 21 et la chambré de sortie 30 de la soupape de décharge 21 etant en liaison avec la chambre de distribution 15.at. Pressure reducer for a brake circuit of motor vehicles actuated by a pressurized fluid, comprising a differential piston subjected to the action of the control pressure on one of its partial active surfaces and a distribution chamber provided on the other side of the differential piston, as well as a relief valve comprising an inlet chamber and an outlet chamber, supported by an adjustable spring and having on its rear side a partial active surface subjected to the action of the pressurized fluid which it carries succeeds b. The distribution chamber 15 is isolated from the braking chamber 10, which is connected with the inlet chamber 28 of the discharge valve 21 and the outlet chamber 30 of the discharge valve 21 being connected with the discharge chamber. distribution 15.

FR7805838A 1977-03-02 1978-03-01 PRESSURE REDUCER FOR BRAKING CIRCUITS OF PRESSURE-ACTED MOTOR VEHICLES Granted FR2382358A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772708941 DE2708941A1 (en) 1977-03-02 1977-03-02 PRESSURE REDUCER FOR PRESSURIZED MOTOR VEHICLE BRAKING SYSTEMS

Publications (2)

Publication Number Publication Date
FR2382358A1 true FR2382358A1 (en) 1978-09-29
FR2382358B1 FR2382358B1 (en) 1981-12-11

Family

ID=6002528

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7805838A Granted FR2382358A1 (en) 1977-03-02 1978-03-01 PRESSURE REDUCER FOR BRAKING CIRCUITS OF PRESSURE-ACTED MOTOR VEHICLES

Country Status (4)

Country Link
DE (1) DE2708941A1 (en)
FR (1) FR2382358A1 (en)
GB (1) GB1593713A (en)
IT (1) IT1092891B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460239A1 (en) * 1979-06-28 1981-01-23 Chrysler France Brake compensator for hydraulic systems - uses differential sliding piston with hole through it blockable by diaphragm

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3222614A1 (en) * 1982-06-16 1983-12-22 Volkswagenwerk Ag, 3180 Wolfsburg HYDRAULIC BRAKE PRESSURE REGULATOR
FR2574733B1 (en) * 1984-12-19 1989-12-01 Kugelfischer G Schaefer & Co LOAD-DEPENDENT BRAKE PRESSURE REGULATOR
DE3543805A1 (en) * 1984-12-19 1986-06-19 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Load-dependent brake pressure control device
DE202009011798U1 (en) 2009-09-01 2009-11-19 Schmidt Verwaltungs Gmbh Apparatus for weighing a melt in an oven

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3420256A (en) * 1966-02-21 1969-01-07 Berg Mfg & Sales Co Reducing valve for front axle brake cylinders
US3776603A (en) * 1972-07-17 1973-12-04 Wagner Electric Corp Control valve

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3420256A (en) * 1966-02-21 1969-01-07 Berg Mfg & Sales Co Reducing valve for front axle brake cylinders
US3776603A (en) * 1972-07-17 1973-12-04 Wagner Electric Corp Control valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460239A1 (en) * 1979-06-28 1981-01-23 Chrysler France Brake compensator for hydraulic systems - uses differential sliding piston with hole through it blockable by diaphragm

Also Published As

Publication number Publication date
IT7820772A0 (en) 1978-03-01
IT1092891B (en) 1985-07-12
GB1593713A (en) 1981-07-22
FR2382358B1 (en) 1981-12-11
DE2708941A1 (en) 1978-09-07

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Legal Events

Date Code Title Description
ST Notification of lapse