GB1081997A - Improvements in and relating to valves for fluid pressure systems - Google Patents
Improvements in and relating to valves for fluid pressure systemsInfo
- Publication number
- GB1081997A GB1081997A GB4014063A GB4014063A GB1081997A GB 1081997 A GB1081997 A GB 1081997A GB 4014063 A GB4014063 A GB 4014063A GB 4014063 A GB4014063 A GB 4014063A GB 1081997 A GB1081997 A GB 1081997A
- Authority
- GB
- United Kingdom
- Prior art keywords
- port
- ball
- piston
- pressure
- inlet
- 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
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/28—Valves specially adapted therefor
- B60T11/34—Pressure reducing or limiting valves
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Control Valves For Brake Systems (AREA)
Abstract
1,081,997. Valves; fluid-pressure brakes. AUTOMOTIVE PRODUCTS CO. Ltd. Sept. 24, 1964 [Oct. 11, 1963], No. 40140/63. Headings F2F and F2V. In a valve supplying a fluid pressure-operated brake, the inlet and outlet pressures are equal until the outlet pressure reaches a first predetermined value, whereafter further increase of the inlet pressure causes the outlet pressure to rise at a reduced rate until, when the inlet pressure reaches a second predetermined level, the supply to the brake is cut off. In the embodiment shown, fluid initially flows from a master cylinder to an inlet 17 and thence via a first port 14, the interior of two axially slidable concentric pistons 6, 7, a second port 20 in piston 6 and radial ports 21 to outlets 23 connected to the wheel cylinders. When the outlet pressure reaches a predetermined value it causes the inner piston 6 to move to the left against the action of a spring 12, thereby allowing a ball 24 to close port 20, the ball having been held away from the port by a projection 27 on a plug 9 screwed into the end of piston 7. If the inlet pressure is now increased, the ball 24 will open and close the port to raise the outlet pressure in proportion to the ratio of areas A 1 and A 2 . On reaching another predetermined value the inlet pressure moves piston 7 to the right against the action of a spring 10, thereby allowing a ball 18 to close port 14, the ball having been held away from the port by a projection 13 integral with piston 7.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4014063A GB1081997A (en) | 1963-10-11 | 1963-10-11 | Improvements in and relating to valves for fluid pressure systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4014063A GB1081997A (en) | 1963-10-11 | 1963-10-11 | Improvements in and relating to valves for fluid pressure systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1081997A true GB1081997A (en) | 1967-09-06 |
Family
ID=10413384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4014063A Expired GB1081997A (en) | 1963-10-11 | 1963-10-11 | Improvements in and relating to valves for fluid pressure systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1081997A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2454650A1 (en) * | 1979-04-19 | 1980-11-14 | Teves Gmbh Alfred | TWO-CIRCUIT PRESSURE REGULATOR AND METHOD FOR PRODUCING SUCH A REGULATOR |
DE3301903A1 (en) * | 1983-01-21 | 1984-07-26 | Alfred Teves Gmbh, 6000 Frankfurt | Pressure control device |
FR2583008A1 (en) * | 1985-06-07 | 1986-12-12 | Automotive Products Plc | PROPORTIONAL BRAKE PRESSURE REDUCER FOR VEHICLES |
FR2861677A1 (en) * | 2003-10-29 | 2005-05-06 | Beringer Sa | PRESSURE LIMITING DEVICE FOR A HYDRAULIC BRAKE CIRCUIT OF A VEHICLE |
-
1963
- 1963-10-11 GB GB4014063A patent/GB1081997A/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2454650A1 (en) * | 1979-04-19 | 1980-11-14 | Teves Gmbh Alfred | TWO-CIRCUIT PRESSURE REGULATOR AND METHOD FOR PRODUCING SUCH A REGULATOR |
DE3301903A1 (en) * | 1983-01-21 | 1984-07-26 | Alfred Teves Gmbh, 6000 Frankfurt | Pressure control device |
FR2583008A1 (en) * | 1985-06-07 | 1986-12-12 | Automotive Products Plc | PROPORTIONAL BRAKE PRESSURE REDUCER FOR VEHICLES |
EP0205249A1 (en) * | 1985-06-07 | 1986-12-17 | Automotive Products Public Limited Company | Vehicle brake pressure proportioning valve |
GB2176259A (en) * | 1985-06-07 | 1986-12-17 | Automotive Products Plc | Vehicle brake pressure proportioning valve |
US4702529A (en) * | 1985-06-07 | 1987-10-27 | Automotive Products Plc | Vehicle brake pressure proportioning valve |
FR2861677A1 (en) * | 2003-10-29 | 2005-05-06 | Beringer Sa | PRESSURE LIMITING DEVICE FOR A HYDRAULIC BRAKE CIRCUIT OF A VEHICLE |
WO2005042324A2 (en) * | 2003-10-29 | 2005-05-12 | Sa Beringer | Pressure limiting device for a hydraulic braking circuit of a vehicle |
WO2005042324A3 (en) * | 2003-10-29 | 2005-07-07 | Beringer Sa | Pressure limiting device for a hydraulic braking circuit of a vehicle |
US7651174B2 (en) | 2003-10-29 | 2010-01-26 | Sa Beringer | Pressure limiting device for a hydraulic braking circuit of vehicle |
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