GB1528058A - Automatic braking force regulators - Google Patents
Automatic braking force regulatorsInfo
- Publication number
- GB1528058A GB1528058A GB1319576A GB1319576A GB1528058A GB 1528058 A GB1528058 A GB 1528058A GB 1319576 A GB1319576 A GB 1319576A GB 1319576 A GB1319576 A GB 1319576A GB 1528058 A GB1528058 A GB 1528058A
- Authority
- GB
- United Kingdom
- Prior art keywords
- load
- regulator
- pressure
- piston
- minimum
- 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
- 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
- B60T8/18—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution
- B60T8/1812—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution characterised by the means for pressure reduction
- B60T8/1825—Means for changing the diaphragm area submitted to pressure
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Control Valves For Brake Systems (AREA)
- Regulating Braking Force (AREA)
Abstract
1528058 Load-responsive proportioning valves DAIMLER-BENZ AG 1 April 1976 [3 April 1975] 13195/76 Headings F2F and F2V An automatic brake pressure regulator 8, Fig. 2, varies brake pressure with load, the latter being represented by the variation of the distance between the regulator 8 mounted on the vehicle frame 9, Fig. 1, and the vehicle axles 1 and 2, the regulator including a control lever 6 which rotates in one direction with increasing load and in the opposite direction with decreasing load, the braking pressure being variable between a maximum corresponding to the regulator input pressure at full load and a predetermined minimum at no load, but if the lever 6 or its associated transmission linkage is severed, a spring in the regulator rotates control lever 6 beyond the minimum pressure position to result in a brake pressure above the minimum. In the regulator of Fig. 2, increasing input pressure at 11 causes downward movement of piston 13, eventually causing tappet 15 to lift valve member 14 from its seat to allow communication from inlet 11 to outlet 19 to the brake cylinders. A diaphragm 21 connects housing 22 with piston 13 and is progressively stretched over an entraining disc 24 of piston 13 as the latter moves downwards. When the maximum brake pressure for the particular load has been reached the piston 13 is returned to the initial position shown. The control lever 6 controls the position of the tappet 15 by rotating a cam 17 between a maximum pressure (fully loaded) position II and minimum (no load) position IV, the latter resulting in later opening of valve 14 in the stroke of piston 13 due to the depressed position of tappet 15. If the control lever 6 or its transmission linkage (parts 3, 5 and 7) is severed, a torsion spring (not shown) associated with shaft 27 rotates the shaft and cam, and hence lever 6, beyond position IV to a position V which causes the tappet 15 to rise to a position giving a braking pressure above the minimum and amounting to preferably 65% of the maximum.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752514484 DE2514484C3 (en) | 1975-04-03 | 1975-04-03 | Load-dependent brake pressure regulator for a vehicle equipped with compressed air brakes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1528058A true GB1528058A (en) | 1978-10-11 |
Family
ID=5942975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1319576A Expired GB1528058A (en) | 1975-04-03 | 1976-04-01 | Automatic braking force regulators |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2514484C3 (en) |
| FR (1) | FR2306104A1 (en) |
| GB (1) | GB1528058A (en) |
| IT (1) | IT1058073B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2719109C2 (en) * | 1977-04-29 | 1985-06-05 | Robert Bosch Gmbh, 7000 Stuttgart | Load-dependent brake pressure control device |
| DE2849879C2 (en) * | 1978-11-17 | 1985-03-14 | Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover | Load-dependent control of brake force regulators |
| DE2855295A1 (en) * | 1978-12-21 | 1980-07-03 | Wabco Fahrzeugbremsen Gmbh | ADJUSTING DEVICE FOR MECHANICALLY CONTROLLED BRAKING REGULATORS |
| DE3328957C2 (en) * | 1983-08-11 | 1994-01-27 | Bosch Gmbh Robert | Reset device for the camshaft of a load-dependent brake force regulator |
| DE3724894A1 (en) * | 1987-07-28 | 1989-02-09 | Wabco Westinghouse Fahrzeug | VALVE DEVICE FOR PRESSURE MEDIUM |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1231584B (en) * | 1961-11-04 | 1966-12-29 | Westinghouse Bremsen Apparate | Brake force regulators for vehicles, in particular motor vehicles |
| FR1355219A (en) * | 1962-04-23 | 1964-03-13 | Bendix Westinghouse Automotive | Control valve for compressed air brake system |
| ES371510A1 (en) * | 1968-09-16 | 1971-11-01 | Magneti Marelli Spa | Improvements in the construction of automatic regulating devices for braking vehicles in charge function. (Machine-translation by Google Translate, not legally binding) |
| DE2057973C2 (en) * | 1970-11-25 | 1984-07-05 | Robert Bosch Gmbh, 7000 Stuttgart | Brake force control system |
-
1975
- 1975-04-03 DE DE19752514484 patent/DE2514484C3/en not_active Expired
-
1976
- 1976-04-01 FR FR7609472A patent/FR2306104A1/en active Granted
- 1976-04-01 GB GB1319576A patent/GB1528058A/en not_active Expired
- 1976-04-02 IT IT4885676A patent/IT1058073B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| FR2306104B1 (en) | 1979-03-23 |
| IT1058073B (en) | 1982-04-10 |
| FR2306104A1 (en) | 1976-10-29 |
| DE2514484A1 (en) | 1976-10-14 |
| DE2514484C3 (en) | 1981-08-20 |
| DE2514484B2 (en) | 1977-05-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19960331 |