SE8104361L - VALVE FOR PRESSURE ADJUSTMENT, SEPARATELY IN A PNEUMATIC BRAKE SYSTEM IN VEHICLE - Google Patents
VALVE FOR PRESSURE ADJUSTMENT, SEPARATELY IN A PNEUMATIC BRAKE SYSTEM IN VEHICLEInfo
- Publication number
- SE8104361L SE8104361L SE8104361A SE8104361A SE8104361L SE 8104361 L SE8104361 L SE 8104361L SE 8104361 A SE8104361 A SE 8104361A SE 8104361 A SE8104361 A SE 8104361A SE 8104361 L SE8104361 L SE 8104361L
- Authority
- SE
- Sweden
- Prior art keywords
- chamber
- valve
- differential piston
- piston
- differential
- Prior art date
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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/26—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels
- B60T8/30—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels responsive to load
- B60T8/303—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels responsive to load using pneumatic valves
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Hydraulic Control Valves For Brake Systems (AREA)
- Regulating Braking Force (AREA)
Abstract
A valve for regulating pressure in front brakes 21 of a vehicle pneumatic brake system comprises a valve body (2) accommodating an auxiliary piston (4) installed coaxially with a differential piston (3), the pistons (3,4) being arranged to have a limited movement relative to each other and to move bodily. The auxiliary piston (4) is arranged in the valve body (2) so that it is caused to move towards the differential piston (3) by increase of driver's control pressure in chamber (5) and come into contact therewith for the two pistons (3,4) to move bodily and is acted upon in opposition to this movement by load responsive rear brake pressure in chamber (6). The interior of the valve body (2) is divided into the supply chamber (5) bounded in part by the smaller working surface (8) of the differential piston (3), the regulation chamber (6) bounded in part by the differential surface (11) of the differential piston (3), and a distribution or output chamber (7) bounded by the larger working surface (14) of the differential piston (3). The valve (1) comprises a double valve element (15) operated by the differential piston (3) and arranged to effect, depending on the position of the latter, admission of compressed air into the distribution chamber (7) from the chamber (5) (Fig. 1) or from a separate air supply when it is a relay valve (Fig. 2) and exhaust therefrom into the atmosphere. <IMAGE>
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802961326A SU996241A1 (en) | 1980-07-21 | 1980-07-21 | Pressure regulator |
SU802961603A SU996243A1 (en) | 1980-07-21 | 1980-07-21 | Pressure regulator |
SU802961605A SU990565A1 (en) | 1980-07-21 | 1980-07-21 | Pressure regulator |
SU802961327A SU996242A1 (en) | 1980-07-21 | 1980-07-21 | Pressure regulator |
SU802961604A SU990564A1 (en) | 1980-07-21 | 1980-07-21 | Pressure regulator |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8104361L true SE8104361L (en) | 1982-01-22 |
SE449835B SE449835B (en) | 1987-05-25 |
Family
ID=27532831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8104361A SE449835B (en) | 1980-07-21 | 1981-07-14 | VALVE FOR PRESSURE ADJUSTMENT, SEPARATELY IN A PNEUMATIC BRAKE SYSTEM IN VEHICLE |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS5741243A (en) |
CS (1) | CS538981A1 (en) |
DE (1) | DE3126843C2 (en) |
FR (1) | FR2486892A1 (en) |
GB (1) | GB2080899B (en) |
HU (1) | HU185438B (en) |
PL (1) | PL138048B1 (en) |
SE (1) | SE449835B (en) |
YU (1) | YU43772B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6298512U (en) * | 1985-12-10 | 1987-06-23 | ||
DE4112984A1 (en) * | 1991-04-20 | 1992-10-22 | Wabco Westinghouse Fahrzeug | VALVE DEVICE |
DE102018126312A1 (en) * | 2018-10-23 | 2020-04-23 | Wabco Gmbh | Electropneumatic brake system architecture without direct pneumatic service brake redundancy on the rear axle (1p1e) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1802370A1 (en) * | 1967-10-27 | 1969-07-17 | Autobrzdy Narodni Podnik | Valve for regulating the brake pressure in compressed air brake systems |
US3944294A (en) * | 1973-06-08 | 1976-03-16 | Jidosha Kiki Co., Ltd. | Combined load-sensing proportion and relay valve for an air brake system |
CH578963A5 (en) * | 1974-04-03 | 1976-08-31 | Marelli Fabbrica Italiana Magn | |
IT1062209B (en) * | 1975-11-03 | 1983-09-20 | Wabco Westinghouse Gmbh | DOUBLE CIRCUIT BRAKING SYSTEM..WITH ADJUSTMENT ACCORDING TO THE LOAD.. FOR VEHICLES |
DE2738948C2 (en) * | 1977-08-30 | 1986-09-18 | Knorr-Bremse AG, 8000 München | Pressure control valve for controlling the front axle brake pressure in pneumatic dual-circuit vehicle brake systems |
DE2820142A1 (en) * | 1978-05-09 | 1979-11-15 | Graubremse Gmbh | Multiple circuit air brake control valve - has interconnected stepped pistons for each circuit ensuring safe braking for heavy loads |
DE2849762C2 (en) * | 1978-11-16 | 1984-12-20 | Clayton Dewandre Co. Ltd., Lincoln | Fluid pressure operated dual circuit brake system for motor vehicles |
-
1981
- 1981-06-25 FR FR8112475A patent/FR2486892A1/en active Granted
- 1981-07-08 DE DE19813126843 patent/DE3126843C2/en not_active Expired
- 1981-07-13 CS CS815389A patent/CS538981A1/en unknown
- 1981-07-13 HU HU204881A patent/HU185438B/en not_active IP Right Cessation
- 1981-07-13 GB GB8121532A patent/GB2080899B/en not_active Expired
- 1981-07-14 SE SE8104361A patent/SE449835B/en not_active IP Right Cessation
- 1981-07-14 YU YU174281A patent/YU43772B/en unknown
- 1981-07-20 JP JP11238481A patent/JPS5741243A/en active Pending
- 1981-07-21 PL PL23230481A patent/PL138048B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE3126843C2 (en) | 1984-12-20 |
GB2080899A (en) | 1982-02-10 |
FR2486892B1 (en) | 1984-03-16 |
PL232304A1 (en) | 1982-02-15 |
YU174281A (en) | 1983-10-31 |
GB2080899B (en) | 1985-02-27 |
HU185438B (en) | 1985-02-28 |
YU43772B (en) | 1989-12-31 |
JPS5741243A (en) | 1982-03-08 |
CS538981A1 (en) | 1984-01-16 |
PL138048B1 (en) | 1986-08-30 |
SE449835B (en) | 1987-05-25 |
FR2486892A1 (en) | 1982-01-22 |
DE3126843A1 (en) | 1982-04-29 |
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