GB331700A - Hydraulic brakes - Google Patents
Hydraulic brakesInfo
- Publication number
- GB331700A GB331700A GB2146029A GB2146029A GB331700A GB 331700 A GB331700 A GB 331700A GB 2146029 A GB2146029 A GB 2146029A GB 2146029 A GB2146029 A GB 2146029A GB 331700 A GB331700 A GB 331700A
- Authority
- GB
- United Kingdom
- Prior art keywords
- duct
- brakes
- pressure
- valve
- brake
- 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
- B60T11/32—Automatic cut-off valves for defective pipes
- B60T11/323—Automatic cut-off valves for defective pipes in hydraulic systems
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)
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
331,700. Coatalen, L. July 12, 1929. Fluid-pressure. - In hydraulic brake mechanism having a separate pressurecreating means and pipe line system for each brake or set of brakes a duct is provided for interconnecting the systems to equalize the pressures by means operative only when the pressures are effective to apply the brakes, the duct being closed between anv two systems when the pressure in one of them fails, so that the other brakes are not rendered inoperative. As shown three master cylinders 2 are arranged side by side each containing a piston 4 moved by a finger 5 on a shaft 6 turned by the brake pedal or hand lever, the pistons being moved simultaneously. The outlet pipe 7 from each cylinder is connected to a brake or set of brakes and communicates with the cylinder by passages 30 and a valve chamber 11 the valves 14 each having a needle portion 31 pressed by a spring 15 on a seating at the end of an axial passage 27 in an abutment 24. The passages 27 communicate with each other by a compensating duct 13. When the master cylinders 2 are operated the valves are lifted by the pressure acting on the cups 23, the opening movement being limited by flanges 17 formed on caps 16, and the pressure in the pipe lines 7 is equalized by the duct 13. If a leak occurs in one pipe line the valve 31 associated with that pipe-line closes, the pressure from the other cylinders acting through the bore 27 not being sufficient to overcome the spring 15. The valves may be arranged in a unitary body, closing caps 29 being spaced slightly from the abutments 24 to provide chambers communicating with the axial passages 27 and the compensating duct 13. The passages 30 connecting the cylinders with the pipes 7 are partly formed in bored bolts 32. The arrangement shown may be applied to six-wheeled vehicles or vehicles with a transmission brake in addition to wheel brakes. Each valve chamber may be connected to the oil reservoir 18 so that any oil leaking past the valve returns to the reservoir. The piston may be operated by separate pedals and one of the pedal shafts may be capable of hand operation. In modifications the compensating duct 13 opens directly into the valve chambers 11 and the needle valve 31 is omitted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2146029A GB331700A (en) | 1929-07-12 | 1929-07-12 | Hydraulic brakes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2146029A GB331700A (en) | 1929-07-12 | 1929-07-12 | Hydraulic brakes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB331700A true GB331700A (en) | 1930-07-10 |
Family
ID=10163308
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2146029A Expired GB331700A (en) | 1929-07-12 | 1929-07-12 | Hydraulic brakes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB331700A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2563168A (en) * | 1948-09-10 | 1951-08-07 | David R Herriott | Safety device for fluid brakes |
US11590948B2 (en) | 2017-10-25 | 2023-02-28 | Continental Teves Ag & Co. Ohg | Fluid reservoir with a stop valve |
-
1929
- 1929-07-12 GB GB2146029A patent/GB331700A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2563168A (en) * | 1948-09-10 | 1951-08-07 | David R Herriott | Safety device for fluid brakes |
US11590948B2 (en) | 2017-10-25 | 2023-02-28 | Continental Teves Ag & Co. Ohg | Fluid reservoir with a stop valve |
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