GB613422A - Improvements in or relating to compound hydraulic brake compressors or the like - Google Patents
Improvements in or relating to compound hydraulic brake compressors or the likeInfo
- Publication number
- GB613422A GB613422A GB12444/45A GB1244445A GB613422A GB 613422 A GB613422 A GB 613422A GB 12444/45 A GB12444/45 A GB 12444/45A GB 1244445 A GB1244445 A GB 1244445A GB 613422 A GB613422 A GB 613422A
- Authority
- GB
- United Kingdom
- Prior art keywords
- space
- pressure
- valve
- passages
- piston
- 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
- B60T11/16—Master control, e.g. master cylinders
- B60T11/224—Master control, e.g. master cylinders with pressure-varying means, e.g. with two stage operation provided by use of different piston diameters including continuous variation from one diameter to another
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
- F15B7/04—In which the ratio between pump stroke and motor stroke varies with the resistance against the motor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7781—With separate connected fluid reactor surface
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87257—Hydraulic brake line [e.g., hill holders]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
- Safety Valves (AREA)
Abstract
613,422. Brakes. RYDE, A. HULL-. May 17, 1945, No. 12444. Convention date, June 25, 1943. [Class 103 (i)] A master cylinder assembly for operating brakes or the like comprises a piston 2 which forces fluid through the brake connection 10, in the initial stage, under the influence of hydraulic pressure exerted by the piston 15 in the bore 14, and, in the final stage of the brake application, under the influence of the pressure in the bore 14 and of the same pressure transmitted, as described below, to the space 23 behind the packing 4 carried by the piston 2. The pedal pressure is transmitted by a rod 42 to the piston 15 which is axially bored to receive a return spring 17 and a valve 29 in the form of a plunger having a head 36. When the rod 42 is first pressed in, the pistons 15, 2 move together because of the fluid trapped between them. As the pressure in the cylinder 14 rises, the pressure transmitted to the space 37 through the passages 32, 40 in the valve, becomes sufficient to overcome the opposing pressure and the spring 33, and the valve moves forward to align the passages 31 and groove 30 with the passage 27 leading to the space 23. The pressure in this space closes a valve 24 to shut-off the space 23 from the space 21 connected to the space 5 and reservoir 6 by passages 22. The space 38 is connected to atmosphere or to the reservoir 6 so that movements of the valve 29 are not impeded by pressure in this space. A check valve 11 is fitted at the brake connection 10, and fluid is supplied from the reservoir 6 to the cylinder 14 through a priming-valve 19. In a modification, the member 29 is provided with a spring- loaded valve in the passage 40, the valve having a restricted opening therethrough. The passages 32, 40 are of increased diameter, so that, when the pressure in the space 37 exceeds that in the bore 14, the valve lifts and permits the excess pressure to be vented quickly. The restricted opening in the valve permits normal functioning when the pressure in the space 37 is building up.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US492281A US2407957A (en) | 1943-06-25 | 1943-06-25 | Compound hydraulic brake compressor and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB613422A true GB613422A (en) | 1948-11-29 |
Family
ID=23955672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12444/45A Expired GB613422A (en) | 1943-06-25 | 1945-05-17 | Improvements in or relating to compound hydraulic brake compressors or the like |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2407957A (en) |
| GB (1) | GB613422A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1227353B (en) * | 1960-01-13 | 1966-10-20 | Renault | Master cylinder for hydraulic braking devices, especially for motor vehicles |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2592442A (en) * | 1944-11-27 | 1952-04-08 | Warner Aircraft Corp | Power valve assembly |
| US2433213A (en) * | 1946-05-02 | 1947-12-23 | New York Air Brake Co | Air bleeding means for master cylinders |
| US2622397A (en) * | 1947-08-22 | 1952-12-23 | Nowak Alois Karl | Hydraulic transmission for press rams |
| US2886950A (en) * | 1957-05-13 | 1959-05-19 | Gen Motors Corp | Quick take-up master cylinder |
| US3122161A (en) * | 1960-10-31 | 1964-02-25 | Bendix Corp | Residual pressure check valve |
| US3431939A (en) * | 1966-01-13 | 1969-03-11 | Mekanprodukter Hans Holm Ab | Valve means for damping the piston stroke in a pneumatic cylinder |
| US4531708A (en) * | 1984-08-21 | 1985-07-30 | Honeywell Lucifer Sa | Solenoid valve |
| US8534639B1 (en) * | 2012-04-18 | 2013-09-17 | HUSCO Automotive Holdings, Inc. | Solenoid valve with a digressively damped armature |
-
1943
- 1943-06-25 US US492281A patent/US2407957A/en not_active Expired - Lifetime
-
1945
- 1945-05-17 GB GB12444/45A patent/GB613422A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1227353B (en) * | 1960-01-13 | 1966-10-20 | Renault | Master cylinder for hydraulic braking devices, especially for motor vehicles |
Also Published As
| Publication number | Publication date |
|---|---|
| US2407957A (en) | 1946-09-17 |
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