GB2016100A - Trailer relay valve for fluid pressure braking system - Google Patents

Trailer relay valve for fluid pressure braking system

Info

Publication number
GB2016100A
GB2016100A GB7906025A GB7906025A GB2016100A GB 2016100 A GB2016100 A GB 2016100A GB 7906025 A GB7906025 A GB 7906025A GB 7906025 A GB7906025 A GB 7906025A GB 2016100 A GB2016100 A GB 2016100A
Authority
GB
United Kingdom
Prior art keywords
trailer
chamber
braking system
pressure
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
GB7906025A
Other versions
GB2016100B (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
Application filed by Wabco Westinghouse GmbH Germany filed Critical Wabco Westinghouse GmbH Germany
Publication of GB2016100A publication Critical patent/GB2016100A/en
Application granted granted Critical
Publication of GB2016100B publication Critical patent/GB2016100B/en
Expired 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
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • 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
    • B60T15/24—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 controlled by three fluid pressures

Landscapes

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

Abstract

A trailer relay emergency valve for the braking system of a tractor/ trailer combination is constructed such that the area of the relay piston which is subject to output pressure, (in chamber 8) is divided into two portions respectively subject to the pressures in chambers 14 and 15, communication with chamber 14 being via a throttle 16 or a "leaky" seal 11 to delay the effect of that portion such as to improve the response of the valve and connected brake actuators to rapidly rising brake control pressure (in chamber 6). The valve further comprises a service or control input port 7, brake actuator ports 9, 10, a trailer pressure fluid reservoir port 33 and an emergency pressure port 20. <IMAGE>
GB7906025A 1978-03-13 1979-02-20 Trailer relay valve for fluid pressure braking system Expired GB2016100B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782810850 DE2810850A1 (en) 1978-03-13 1978-03-13 TRAILER BRAKE VALVE

Publications (2)

Publication Number Publication Date
GB2016100A true GB2016100A (en) 1979-09-19
GB2016100B GB2016100B (en) 1982-05-26

Family

ID=6034308

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7906025A Expired GB2016100B (en) 1978-03-13 1979-02-20 Trailer relay valve for fluid pressure braking system

Country Status (4)

Country Link
DE (1) DE2810850A1 (en)
FR (1) FR2419852B1 (en)
GB (1) GB2016100B (en)
IT (1) IT1164949B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103359102A (en) * 2013-07-30 2013-10-23 瑞立集团瑞安汽车零部件有限公司 Trailer valve with throttling function
US9988032B2 (en) 2013-10-26 2018-06-05 Wabco Gmbh Relay valve, valve device, and vehicle associated therewith

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3217538A1 (en) * 1982-05-10 1983-11-10 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover Relay valve
ES2283361T3 (en) 2000-09-14 2007-11-01 Wabco Gmbh BRAKE DEVICE FOR TRAILER WITH ELECTRONIC BRAKE REGULATION.
DE10139757A1 (en) 2000-09-14 2002-05-29 Wabco Gmbh & Co Ohg Trailer brake valve for trailer vehicles with electronic brake control and enhanced security of the parked trailer
EP1188634B2 (en) 2000-09-14 2011-12-21 WABCO GmbH Trailer brake valve for trailer vehicles with electronic brake control and increased security of the parked trailer
DE102007038472B4 (en) 2007-08-14 2009-04-23 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Valve arrangement for controlling a brake system of a trailer vehicle

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7406796U (en) * 1974-05-30 Graubremse Gmbh Brake valve
US2380507A (en) * 1943-06-14 1945-07-31 Bendix Westinghouse Automotive Fluid pressure control mechanism
GB660795A (en) * 1947-05-14 1951-11-14 Bendix Westinghouse Automotive Improvements in or relating to fluid pressure valves
GB1127256A (en) * 1965-12-11 1968-09-18 Sanwa Seiki Mfg Company Ltd Improvements in the structure of relay valve used in air brake system for automotivevehicles
GB1169252A (en) * 1967-05-25 1969-11-05 Dewandre Co Ltd C Improvements in or relating to variable ratio relay valves
DE1962132C3 (en) * 1969-12-11 1979-04-19 Knorr-Bremse Gmbh, 8000 Muenchen Drainage device for compressed air systems, in particular compressed air braking systems, of motor vehicles
FR2071193A5 (en) * 1969-12-19 1971-09-17 Westinghouse Freins & Signaux
DE2233144C3 (en) * 1971-07-10 1981-02-12 Fabbrica Italiana Magneti Marelli S.P.A., Mailand (Italien) Shut-off device for the damaged brake circuit (s) in a pneumatic vehicle multi-circuit brake system
FR2209685B1 (en) * 1972-12-08 1977-08-05 Westinghouse Freins & Signaux
IT1042832B (en) * 1974-09-27 1980-01-30 Graubremse Gmbh BRAKING VALVE FOR TWO-DUCT SYSTEMS FOR BRAKE FLUID FOR VEHICLE PIMORKS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103359102A (en) * 2013-07-30 2013-10-23 瑞立集团瑞安汽车零部件有限公司 Trailer valve with throttling function
CN103359102B (en) * 2013-07-30 2015-04-08 瑞立集团瑞安汽车零部件有限公司 Trailer valve with throttling function
US9988032B2 (en) 2013-10-26 2018-06-05 Wabco Gmbh Relay valve, valve device, and vehicle associated therewith

Also Published As

Publication number Publication date
FR2419852B1 (en) 1987-04-17
FR2419852A1 (en) 1979-10-12
IT1164949B (en) 1987-04-15
IT7967521A0 (en) 1979-03-12
GB2016100B (en) 1982-05-26
DE2810850A1 (en) 1979-10-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930220