GB1312123A - Brake valve for a three-circuit air brake system - Google Patents

Brake valve for a three-circuit air brake system

Info

Publication number
GB1312123A
GB1312123A GB3383170A GB3383170A GB1312123A GB 1312123 A GB1312123 A GB 1312123A GB 3383170 A GB3383170 A GB 3383170A GB 3383170 A GB3383170 A GB 3383170A GB 1312123 A GB1312123 A GB 1312123A
Authority
GB
United Kingdom
Prior art keywords
piston
circuit
brake
rod
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.)
Expired
Application number
GB3383170A
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.)
Westinghouse Bremsen und Apparatebau GmbH
Original Assignee
Westinghouse Bremsen und Apparatebau 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 Westinghouse Bremsen und Apparatebau GmbH filed Critical Westinghouse Bremsen und Apparatebau GmbH
Publication of GB1312123A publication Critical patent/GB1312123A/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
    • B60T15/04—Driver's valves
    • B60T15/043—Driver's valves controlling service pressure brakes
    • B60T15/045—Driver's valves controlling service pressure brakes in multiple circuit systems, e.g. dual circuit systems
    • B60T15/046—Driver's valves controlling service pressure brakes in multiple circuit systems, e.g. dual circuit systems with valves mounted in tandem

Landscapes

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

Abstract

1312123 Brake valves WESTINGHOUSE BREMSENUND APPARATEBAU GmbH 13 July 1970 [12 July 1969] 33831/70 Heading F2F An air brake valve for use in a three-circuit air braking system has respective inlets 1, 2, 3 and outlets 4, 5, 6 connected to actuate brake cylinders when a disc 30 is moved downwardly by a brake pedal compressing a rubber shockabsorbing member 32 and depressing a piston 24. A sealing face 29 is provided on piston 24 which firstly closes communication between an outlet duct 10 and atmosphere through a star-shaped rod 22 and immediately after opens a valve 11, 12 to connect inlet duct 9 and outlet 10 of the first circuit. Air then passes through a port 53 provided in a partition 7 causing two pistons 35, 38 to move downwardly cutting off communication between atmosphere and outlet 5 and thereafter opening valve 41, 42 and connecting inlet 2 and outlet 5. Air in this second circuit passes through a port 54 in a second partition 8 depressing a piston 46 which closes off the atmosphere connection and then opens valve 49, 50 to establish communication between inlet 3 and outlet 6 of the third circuit. If the first brake circuit fails a threaded rod 28 carried by disc 30 engages rod 22 which is carried downwardly until it abuts piston 38 and causes valve 41, 42 to open. If the second brake circuit fails, control piston 35 is charged with air from the first circuit as described previously but as no counterpressure acts on piston 35, piston 38 and a push-rod 22 move down until rod 22 actuates a push-rod 47 and thus piston 46 of the third brake circuit. The pressure build-up in chamber 10 in conjunction with compression spring 26 acts upon the lower face of piston 24 which tends to move again so as to provide an indication at the pedal of braking pressure being applied.
GB3383170A 1969-07-12 1970-07-13 Brake valve for a three-circuit air brake system Expired GB1312123A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691935537 DE1935537A1 (en) 1969-07-12 1969-07-12 Brake valve for three-circuit air brake systems

Publications (1)

Publication Number Publication Date
GB1312123A true GB1312123A (en) 1973-04-04

Family

ID=5739673

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3383170A Expired GB1312123A (en) 1969-07-12 1970-07-13 Brake valve for a three-circuit air brake system

Country Status (5)

Country Link
DE (1) DE1935537A1 (en)
ES (1) ES381652A1 (en)
FR (1) FR2068737B1 (en)
GB (1) GB1312123A (en)
NL (1) NL7010245A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121496A (en) * 1982-05-28 1983-12-21 Lucas Ind Plc Improvements in dual brake valves
CN102862563A (en) * 2012-09-18 2013-01-09 河南昌通科技有限公司 Automobile brake anti-failure three-control relay valve
WO2015092499A3 (en) * 2013-12-20 2015-08-13 Wabco India Limited Pneumatic control valve
CN110065486A (en) * 2019-05-24 2019-07-30 福州大学 A kind of double brake valve and its control method based on brake system of car

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1062209B (en) * 1975-11-03 1983-09-20 Wabco Westinghouse Gmbh DOUBLE CIRCUIT BRAKING SYSTEM..WITH ADJUSTMENT ACCORDING TO THE LOAD.. FOR VEHICLES
DE2736661C2 (en) * 1977-08-13 1987-04-02 Robert Bosch Gmbh, 7000 Stuttgart Dual-circuit control valve

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121496A (en) * 1982-05-28 1983-12-21 Lucas Ind Plc Improvements in dual brake valves
CN102862563A (en) * 2012-09-18 2013-01-09 河南昌通科技有限公司 Automobile brake anti-failure three-control relay valve
CN102862563B (en) * 2012-09-18 2014-10-01 昌通科技有限公司 Automobile brake anti-failure three-control relay valve
WO2015092499A3 (en) * 2013-12-20 2015-08-13 Wabco India Limited Pneumatic control valve
US9932025B2 (en) 2013-12-20 2018-04-03 Wabco India Limited Pneumatic control valve
CN110065486A (en) * 2019-05-24 2019-07-30 福州大学 A kind of double brake valve and its control method based on brake system of car

Also Published As

Publication number Publication date
ES381652A1 (en) 1973-04-01
FR2068737A1 (en) 1971-09-03
DE1935537A1 (en) 1971-02-11
SU403149A3 (en) 1973-10-19
NL7010245A (en) 1971-01-14
FR2068737B1 (en) 1974-06-28

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Legal Events

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