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GB1534253A - Two-line brake system for a trailer vehicle - Google Patents

Two-line brake system for a trailer vehicle

Info

Publication number
GB1534253A
GB1534253A GB2358377A GB2358377A GB1534253A GB 1534253 A GB1534253 A GB 1534253A GB 2358377 A GB2358377 A GB 2358377A GB 2358377 A GB2358377 A GB 2358377A GB 1534253 A GB1534253 A GB 1534253A
Authority
GB
United Kingdom
Prior art keywords
valve
pressure
chamber
brake
service
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.)
Expired
Application number
GB2358377A
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
Original Assignee
WABCO WESTINGHOUSE 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 WABCO WESTINGHOUSE GmbH filed Critical WABCO WESTINGHOUSE GmbH
Publication of GB1534253A publication Critical patent/GB1534253A/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
    • 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
    • B60T15/20—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 two fluid pressures
    • B60T15/22—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 two fluid pressures with one or more auxiliary valves, for braking, releasing, filling reservoirs
    • 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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/26—Compressed-air systems
    • B60T13/261—Compressed-air systems systems with both indirect application and application by springs or weights and released by compressed air
    • B60T13/265—Compressed-air systems systems with both indirect application and application by springs or weights and released by compressed air dependent systems, e.g. trailer systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Braking Systems And Boosters (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)

Abstract

1534253 Pneumatic brake systems for trailers WABCO WESTINGHOUSE GmbH 3 June 1977 [11 June 1976] 23583/77 Heading F2F The system has service and auxiliary brake circuits with respective reservoirs 46, 36 and respective relay valves 21, 8 between those reservoirs and the corresponding service and auxiliary (spring-applied) cylinders 20, 29, valve 8 having three control chambers 15, 16, 17 connected respectively to the service brake cylinders 20, the brake control line 24 and the outlet of a manually operable on/off valve 9 whose inlets 1, 2 are connected to the supply line 27 and the reservoir 36 respectively. Thus with valve 9 in the position shown, chamber 17 is pressurized and piston 12 contacts valve member 42 to close its vent passage while opening valve 38 to admit pressure from reser. voir 36 to the auxiliary cylinder 29. Pressure in control line operates relay valve 21 for service braking this pressure being transmitted to both chambers 15, 16 and thus having no effect on valve 8. Loss of pressure in line 27 depressurizes chamber 17 so that piston 12 rises and the auxiliary cylinder is vented; loss of pressure in reservoir 46 also results in auxiliary brake application when service braking is desired since line 24 pressure is transmitted to chamber 16 and is no longer balanced by that in chamber 15. The latter effect also applies if pressure is lost between valve 21 and the service brake cylinder. Manual valve 9 can be depressed to release the auxiliary brake by admitting pressure from reservoir 36 to chamber 17.
GB2358377A 1976-06-11 1977-06-03 Two-line brake system for a trailer vehicle Expired GB1534253A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762626134 DE2626134C3 (en) 1976-06-11 1976-06-11 Dual-line single-circuit braking system for trailers

Publications (1)

Publication Number Publication Date
GB1534253A true GB1534253A (en) 1978-11-29

Family

ID=5980273

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2358377A Expired GB1534253A (en) 1976-06-11 1977-06-03 Two-line brake system for a trailer vehicle

Country Status (6)

Country Link
AT (1) AT357890B (en)
DE (1) DE2626134C3 (en)
FR (1) FR2354227A1 (en)
GB (1) GB1534253A (en)
IT (1) IT1083271B (en)
SE (1) SE416121B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495081A (en) * 1982-07-13 1985-01-22 The Dow Chemical Company Compositions containing polyether polyols and aliphatic primary amines
US6669307B1 (en) * 1998-11-20 2003-12-30 Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh Parking and maneuvering valve for trailers having a spring-loaded parking brake
EP3000631A1 (en) * 2014-05-30 2016-03-30 Studio Tecnico 6 M S.R.L. Device for the towing vehicle-trailer connection
US10427663B2 (en) 2014-06-18 2019-10-01 Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh Dual-piston relay valve having an anti-compounding function

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3605444A1 (en) * 1985-02-23 1986-09-25 Graubremse Gmbh, 6900 Heidelberg Air brake system for trailers
GB8506978D0 (en) * 1985-03-18 1985-04-24 Lucas Ind Plc Vehicle anti-skid air braking systems
DE3535973A1 (en) * 1985-10-09 1987-04-09 Wabco Westinghouse Fahrzeug PRESSURE-OPERATED BRAKE SYSTEM OF A VEHICLE
DE3630892A1 (en) * 1986-09-11 1988-03-24 Graubremse Gmbh Dual line brake system for trailers
GB2508885A (en) * 2012-12-14 2014-06-18 Haldex Brake Products Ltd Trailer control system where power may be provided to the EBS from an on-board power source
DE102016010639A1 (en) * 2016-09-02 2018-03-08 Wabco Gmbh Pneumatic brake system for a trailer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495081A (en) * 1982-07-13 1985-01-22 The Dow Chemical Company Compositions containing polyether polyols and aliphatic primary amines
US6669307B1 (en) * 1998-11-20 2003-12-30 Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh Parking and maneuvering valve for trailers having a spring-loaded parking brake
EP3000631A1 (en) * 2014-05-30 2016-03-30 Studio Tecnico 6 M S.R.L. Device for the towing vehicle-trailer connection
US10427663B2 (en) 2014-06-18 2019-10-01 Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh Dual-piston relay valve having an anti-compounding function

Also Published As

Publication number Publication date
FR2354227B1 (en) 1984-05-04
DE2626134A1 (en) 1977-12-15
FR2354227A1 (en) 1978-01-06
SE7706540L (en) 1977-12-12
AT357890B (en) 1980-08-11
IT1083271B (en) 1985-05-21
DE2626134B2 (en) 1979-04-05
SE416121B (en) 1980-12-01
DE2626134C3 (en) 1979-11-22
ATA296977A (en) 1979-12-15

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Legal Events

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