FR2378967A1 - Relay valve for compressed air cylinder - has control piston charged by adjustable spring and back pressure valves - Google Patents

Relay valve for compressed air cylinder - has control piston charged by adjustable spring and back pressure valves

Info

Publication number
FR2378967A1
FR2378967A1 FR7802062A FR7802062A FR2378967A1 FR 2378967 A1 FR2378967 A1 FR 2378967A1 FR 7802062 A FR7802062 A FR 7802062A FR 7802062 A FR7802062 A FR 7802062A FR 2378967 A1 FR2378967 A1 FR 2378967A1
Authority
FR
France
Prior art keywords
control piston
control
compressed air
air cylinder
pressure
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
FR7802062A
Other languages
French (fr)
Other versions
FR2378967B1 (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.)
MAN AG
Original Assignee
MAN Maschinenfabrik Augsburg Nuernberg AG
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 MAN Maschinenfabrik Augsburg Nuernberg AG filed Critical MAN Maschinenfabrik Augsburg Nuernberg AG
Publication of FR2378967A1 publication Critical patent/FR2378967A1/en
Application granted granted Critical
Publication of FR2378967B1 publication Critical patent/FR2378967B1/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
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/36—Other control devices or valves characterised by definite functions
    • B60T15/54—Other control devices or valves characterised by definite functions for controlling exhaust from triple valve or from brake cylinder
    • 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
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/18—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Actuator (AREA)

Abstract

The relay valve is for rapid ventilation of a compressed air cylinder using a control piston. The piston is charged on one side with control pressure, and on the other side with the working pressure of the cylinder. A tubular valve body has a sealing collar, to open or close a passage between a storage pressure and a working pressure connection of the valve. During an adjustment, movement, the control piston moves the tubular valve, to open the passage. On the control pressure side, the control piston is additionally charged with the force of an adjustable pretensioned spring (13). Back pressure valves (1, 11) allow passage or air only in direction towards the control pressure side. The valves are formed by bores between the two sides of the piston, which are covered by a membrane on the control pressure side.
FR7802062A 1977-01-31 1978-01-25 Relay valve for compressed air cylinder - has control piston charged by adjustable spring and back pressure valves Granted FR2378967A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2703940A DE2703940C2 (en) 1977-01-31 1977-01-31 Relay valve for air cylinder

Publications (2)

Publication Number Publication Date
FR2378967A1 true FR2378967A1 (en) 1978-08-25
FR2378967B1 FR2378967B1 (en) 1983-03-18

Family

ID=5999992

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7802062A Granted FR2378967A1 (en) 1977-01-31 1978-01-25 Relay valve for compressed air cylinder - has control piston charged by adjustable spring and back pressure valves

Country Status (4)

Country Link
DE (1) DE2703940C2 (en)
FR (1) FR2378967A1 (en)
IT (1) IT1092332B (en)
SE (1) SE432989B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3344841C2 (en) * 1983-12-12 1994-05-11 Wabco Vermoegensverwaltung Relay valve for a pressure medium system
DE3345332A1 (en) * 1983-12-15 1985-06-27 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover Relay valve with pressure medium
US5762094A (en) * 1997-04-11 1998-06-09 Alliedsignal Truck Brake Systems Co. Automatic valve drain

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2493449A (en) * 1947-09-18 1950-01-03 Bendix Westinghouse Automotive Fluid-pressure valve
FR2144586A1 (en) * 1971-07-07 1973-02-16 Westinghouse Freins & Signaux

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE951681C (en) * 1953-09-17 1956-10-31 Lucas Industries Ltd Hydraulic servo device for the fuel supply in internal combustion engines
AT213676B (en) * 1958-02-15 1961-02-27 Zd Y Prumyslove Automatisace N Pneumatic amplifier
US3375843A (en) * 1965-01-14 1968-04-02 Pignone Sud Spa Pneumatic circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2493449A (en) * 1947-09-18 1950-01-03 Bendix Westinghouse Automotive Fluid-pressure valve
FR2144586A1 (en) * 1971-07-07 1973-02-16 Westinghouse Freins & Signaux

Also Published As

Publication number Publication date
SE7800664L (en) 1978-08-01
FR2378967B1 (en) 1983-03-18
DE2703940A1 (en) 1978-08-03
DE2703940C2 (en) 1982-07-15
IT1092332B (en) 1985-07-06
IT7819784A0 (en) 1978-01-30
SE432989B (en) 1984-04-30

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Legal Events

Date Code Title Description
ST Notification of lapse