GB1239289A - - Google Patents
Info
- Publication number
- GB1239289A GB1239289A GB1239289DA GB1239289A GB 1239289 A GB1239289 A GB 1239289A GB 1239289D A GB1239289D A GB 1239289DA GB 1239289 A GB1239289 A GB 1239289A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- plug
- load
- cylinders
- braking system
- 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
- B60T8/1837—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 load-detecting arrangements
- B60T8/185—Arrangements for detecting vehicle level
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Control Valves For Brake Systems (AREA)
Abstract
1,239,289. Load responsive braking system. AUTOMOTIVE PRODUCTS CO. Ltd. 19 Aug., 1969 [17 Sept., 1968], No. 44085/68. Heading F2F. A fluid pressure vehicle braking system having a pressure reducing valve controlled by means responsive to the load on the vehicle wheels 13 comprises a master cylinder 10, actuating cylinders 12 and a pressure reducing valve 18 interposed in a conduit 19 connecting the master and actuating cylinders, an actuating lever 51 of the valve being connected by a tension spring 52 to links 16, 17 pivoted together and to the vehicle body 15 and axle 14 respectively. When the brakes are applied fluid pressure from the master cylinder 10 acts in an annular space 33 on a plunger 27 to urge it against a plug 26 against which it is already held by a spring 47, the fluid pressure also acting on the end of the plunger 27, facing the plug, to move it away therefrom so that when the pressure reaches a predetermined value depending on the resultant thrust of springs 47, 52 the plunger moves away from plug 26 allowing a ball 39 to seat on a seat 38, the ball having previously been held off by a rod 42 engaging the plug 26, and isolate the cylinders 12 from the cylinder 10. If the load decreases as for example due to weight transference the load exerted by spring 52 increases and reduces the pressure in the brake cylinders 12. The system may alternatively include an air pressure braking system or a source of liquid pressure such as a pump, the connection being controlled by a driver-operated valve.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4408568 | 1968-09-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1239289A true GB1239289A (en) | 1971-07-14 |
Family
ID=10431689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1239289D Expired GB1239289A (en) | 1968-09-17 | 1968-09-17 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1239289A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3837713A (en) * | 1972-03-24 | 1974-09-24 | Jidosha Kiki Co | Load sensing proportioning valve |
US3941431A (en) * | 1973-06-05 | 1976-03-02 | Regie Nationale Des Usines Renault | Inertia and load responsive device for limiting braking pressure |
FR2495079A1 (en) * | 1980-11-28 | 1982-06-04 | Dba | Braking pressure control device - has tension spring applying force tending to reduce brake pressure |
EP0053528A1 (en) * | 1980-11-28 | 1982-06-09 | Societe Anonyme D.B.A. | Brake pressure proportioning valve |
-
1968
- 1968-09-17 GB GB1239289D patent/GB1239289A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3837713A (en) * | 1972-03-24 | 1974-09-24 | Jidosha Kiki Co | Load sensing proportioning valve |
US3941431A (en) * | 1973-06-05 | 1976-03-02 | Regie Nationale Des Usines Renault | Inertia and load responsive device for limiting braking pressure |
FR2495079A1 (en) * | 1980-11-28 | 1982-06-04 | Dba | Braking pressure control device - has tension spring applying force tending to reduce brake pressure |
EP0053528A1 (en) * | 1980-11-28 | 1982-06-09 | Societe Anonyme D.B.A. | Brake pressure proportioning valve |
US4448457A (en) * | 1980-11-28 | 1984-05-15 | Societe Anonyme Dba | Braking pressure corrector |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
PLNP | Patent lapsed through nonpayment of renewal fees |