FR2365467A1 - Trailer braking force regulator - has piston to operate regulator and relay valves connected to second piston which operates relief valve - Google Patents

Trailer braking force regulator - has piston to operate regulator and relay valves connected to second piston which operates relief valve

Info

Publication number
FR2365467A1
FR2365467A1 FR7728822A FR7728822A FR2365467A1 FR 2365467 A1 FR2365467 A1 FR 2365467A1 FR 7728822 A FR7728822 A FR 7728822A FR 7728822 A FR7728822 A FR 7728822A FR 2365467 A1 FR2365467 A1 FR 2365467A1
Authority
FR
France
Prior art keywords
piston
regulator
valve
relief valve
operates
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
FR7728822A
Other languages
French (fr)
Other versions
FR2365467B1 (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.)
Wabco Westinghouse GmbH Germany
Original Assignee
Wabco Westinghouse GmbH Germany
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
Priority claimed from DE2643296A external-priority patent/DE2643296B2/en
Priority claimed from DE2646288A external-priority patent/DE2646288B2/en
Application filed by Wabco Westinghouse GmbH Germany filed Critical Wabco Westinghouse GmbH Germany
Publication of FR2365467A1 publication Critical patent/FR2365467A1/en
Application granted granted Critical
Publication of FR2365467B1 publication Critical patent/FR2365467B1/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

The braking force regulator for use in the fluid pressure braking system of a trailer, comprises a relief valve, a relay valve and a braking pressure regulator valve which serves the relay valve and the relief valve at the same time. A common piston, moved by the braking pressure sensed by a pressure valve, operates the regulator valve and the relay valve and is connected to another piston which operates the relief valve. This piston is moved under the pressure of the fluid supply from a reservoir, acting against a spring and has a moderating valve which closes when the relief valve is in operation.
FR7728822A 1976-09-25 1977-09-23 Trailer braking force regulator - has piston to operate regulator and relay valves connected to second piston which operates relief valve Granted FR2365467A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2643296A DE2643296B2 (en) 1976-09-25 1976-09-25 Load-dependent braking force control device
DE2646288A DE2646288B2 (en) 1976-10-14 1976-10-14 Load-dependent braking force control device

Publications (2)

Publication Number Publication Date
FR2365467A1 true FR2365467A1 (en) 1978-04-21
FR2365467B1 FR2365467B1 (en) 1984-09-14

Family

ID=25770943

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7728822A Granted FR2365467A1 (en) 1976-09-25 1977-09-23 Trailer braking force regulator - has piston to operate regulator and relay valves connected to second piston which operates relief valve

Country Status (1)

Country Link
FR (1) FR2365467A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2401805A1 (en) * 1977-09-05 1979-03-30 Wabco Westinghouse Gmbh BRAKE FORCE REGULATOR PROPORTIONAL TO THE LOAD
FR2444597A1 (en) * 1978-12-21 1980-07-18 Wabco Fahrzeugbremsen Gmbh ADJUSTING DEVICE FOR MECHANICALLY CONTROLLED BRAKE EFFORT REGULATORS
FR2449566A1 (en) * 1979-02-26 1980-09-19 Wabco Fahrzeugbremsen Gmbh DEVICE FOR AUTOMATIC REGULATION OF THE BRAKING FORCE AS A FUNCTION OF THE LOAD

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1457063A (en) * 1965-04-30 1966-10-28 Westinghouse Bremsen Apparate Load-dependent braking force regulator, especially for vehicles
US3285674A (en) * 1963-07-17 1966-11-15 Girling Ltd Control valves for air braking systems
FR2077139A5 (en) * 1970-01-30 1971-10-15 Knorr Bremse Gmbh
DE2425888A1 (en) * 1973-05-30 1974-12-19 Jidosha Kiki Co SOLENOID VALVE WITH A LOAD-SENSITIVE ADAPTER VALVE
DE2456074A1 (en) * 1973-11-28 1975-06-05 Jidosha Kiki Co LOAD-CONTROLLED RELAY VALVE FOR A COMPRESSED AIR BRAKE SYSTEM
DE2457543A1 (en) * 1973-12-06 1975-06-12 Jidosha Kiki Co LOAD-CONTROLLED PRESSURE MEASURING RELAY VALVE
DE2457793A1 (en) * 1973-12-06 1975-06-19 Jidosha Kiki Co VALVE FOR CONTROLLING A PRESSURE MEDIUM

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3285674A (en) * 1963-07-17 1966-11-15 Girling Ltd Control valves for air braking systems
FR1457063A (en) * 1965-04-30 1966-10-28 Westinghouse Bremsen Apparate Load-dependent braking force regulator, especially for vehicles
FR2077139A5 (en) * 1970-01-30 1971-10-15 Knorr Bremse Gmbh
DE2425888A1 (en) * 1973-05-30 1974-12-19 Jidosha Kiki Co SOLENOID VALVE WITH A LOAD-SENSITIVE ADAPTER VALVE
DE2456074A1 (en) * 1973-11-28 1975-06-05 Jidosha Kiki Co LOAD-CONTROLLED RELAY VALVE FOR A COMPRESSED AIR BRAKE SYSTEM
DE2457543A1 (en) * 1973-12-06 1975-06-12 Jidosha Kiki Co LOAD-CONTROLLED PRESSURE MEASURING RELAY VALVE
DE2457793A1 (en) * 1973-12-06 1975-06-19 Jidosha Kiki Co VALVE FOR CONTROLLING A PRESSURE MEDIUM

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2401805A1 (en) * 1977-09-05 1979-03-30 Wabco Westinghouse Gmbh BRAKE FORCE REGULATOR PROPORTIONAL TO THE LOAD
FR2444597A1 (en) * 1978-12-21 1980-07-18 Wabco Fahrzeugbremsen Gmbh ADJUSTING DEVICE FOR MECHANICALLY CONTROLLED BRAKE EFFORT REGULATORS
FR2449566A1 (en) * 1979-02-26 1980-09-19 Wabco Fahrzeugbremsen Gmbh DEVICE FOR AUTOMATIC REGULATION OF THE BRAKING FORCE AS A FUNCTION OF THE LOAD

Also Published As

Publication number Publication date
FR2365467B1 (en) 1984-09-14

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse