GB1312123A - Brake valve for a three-circuit air brake system - Google Patents
Brake valve for a three-circuit air brake systemInfo
- 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
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.
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)
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)
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 |
-
1969
- 1969-07-12 DE DE19691935537 patent/DE1935537A1/en active Pending
-
1970
- 1970-07-10 NL NL7010245A patent/NL7010245A/xx unknown
- 1970-07-10 FR FR7025875A patent/FR2068737B1/fr not_active Expired
- 1970-07-10 ES ES381652A patent/ES381652A1/en not_active Expired
- 1970-07-13 GB GB3383170A patent/GB1312123A/en not_active Expired
Cited By (6)
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 |
---|---|
FR2068737A1 (en) | 1971-09-03 |
NL7010245A (en) | 1971-01-14 |
SU403149A3 (en) | 1973-10-19 |
ES381652A1 (en) | 1973-04-01 |
DE1935537A1 (en) | 1971-02-11 |
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 |