GB1131614A - Improvements in fluid-pressure operated boosters or servo motors - Google Patents
Improvements in fluid-pressure operated boosters or servo motorsInfo
- Publication number
- GB1131614A GB1131614A GB4736465A GB4736465A GB1131614A GB 1131614 A GB1131614 A GB 1131614A GB 4736465 A GB4736465 A GB 4736465A GB 4736465 A GB4736465 A GB 4736465A GB 1131614 A GB1131614 A GB 1131614A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- input
- movable wall
- valve
- force
- 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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
- B60T13/569—Vacuum systems indirect, i.e. vacuum booster units characterised by piston details, e.g. construction, mounting of diaphragm
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
Abstract
1,131,614. Brake booster. GIRLING Ltd. 9 Nov., 1965 [18 Nov., 1964], No. 47364/65. Addition to 1,028,994. Heading F2F. A brake booster comprises a housing, a force input member acting on a force output member through a lever in the housing to apply an input force to the output member, a movable wall mounted in the housing or casing across which a pressure differential is developed to augment the input force, and a valve controlling the development of the pressure differential in response to movement of the lever, in which the input and output members are in axial alignment with the booster axis and the lever is formed by a part of the movable wall and is adapted to move angularly about a fulcrum on another part of the movable wall at a point spaced from the axis of the booster. In a first embodiment (Fig. 1), the movable wall comprises a member 14 with a peripheral diaphragm 15, the lever 18 being attached to the member 14 by a diaphragm 19 and abutting a pivot 21 detachably mounted in the member. Initially the chamber 12 is connected to the vacuum chamber 11 by passages 23, 24, 22, and vacuum valve 26. When the input rod 16 is moved the lever 18 moves clockwise to close valve 26 and open air valve 28 to admit air through filter 45 and hollow output rod 32. The differential pressure on the part of lever 18 defined by diaphragm 19 moves the lever back anticlockwise to close the air valve and to provide a "feel" force to the input rod proportional to the pressure differential. In a second embodiment (Fig. 3), the movable wall 55 is provided by two pressings 58, 59 clamping a diaphragm 54, the pressings having dished portions over an area 60 within which is provided a circular plate 62 forming the lever. The lever has part-spherical seatings engaging pins 63a on the wall to provide a fulcrum for the lever. The actuating valve is of spool form and when operated allows air to enter the chamber 57 through a filter 76.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB657563A GB1028994A (en) | 1964-11-18 | 1963-02-19 | Improvements in fluid-pressure-operated boosters |
US344477A US3269273A (en) | 1963-02-19 | 1964-02-12 | Fluid pressure operated boosters |
FR964395A FR1390488A (en) | 1963-02-19 | 1964-02-19 | Improvements to amplifier relays actuated by fluid pressure |
GB4736465A GB1131614A (en) | 1964-11-18 | 1964-11-18 | Improvements in fluid-pressure operated boosters or servo motors |
FR38945A FR89130E (en) | 1963-02-19 | 1965-11-18 | Improvements to amplifier relays actuated by fluid pressure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4736465A GB1131614A (en) | 1964-11-18 | 1964-11-18 | Improvements in fluid-pressure operated boosters or servo motors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1131614A true GB1131614A (en) | 1968-10-23 |
Family
ID=10444686
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB657563A Expired GB1028994A (en) | 1963-02-19 | 1963-02-19 | Improvements in fluid-pressure-operated boosters |
GB4736465A Expired GB1131614A (en) | 1963-02-19 | 1964-11-18 | Improvements in fluid-pressure operated boosters or servo motors |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB657563A Expired GB1028994A (en) | 1963-02-19 | 1963-02-19 | Improvements in fluid-pressure-operated boosters |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB1028994A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2493250A1 (en) * | 1980-08-19 | 1982-05-07 | Teves Gmbh Alfred | DEPRESSION SPEAKER FOR BRAKE FORCE AMPLIFIER FOR MOTOR VEHICLES |
EP0151028A2 (en) * | 1984-01-28 | 1985-08-07 | Tokico Ltd. | Vehicle braking system |
US5406969A (en) * | 1991-02-18 | 1995-04-18 | The University Of Melbourne | Regulation of flowrate of liquid furnace products |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3307880A1 (en) * | 1983-03-05 | 1984-09-06 | Alfred Teves Gmbh, 6000 Frankfurt | VACUUM HOUSING FOR A BRAKE AMPLIFIER |
-
1963
- 1963-02-19 GB GB657563A patent/GB1028994A/en not_active Expired
-
1964
- 1964-11-18 GB GB4736465A patent/GB1131614A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2493250A1 (en) * | 1980-08-19 | 1982-05-07 | Teves Gmbh Alfred | DEPRESSION SPEAKER FOR BRAKE FORCE AMPLIFIER FOR MOTOR VEHICLES |
EP0151028A2 (en) * | 1984-01-28 | 1985-08-07 | Tokico Ltd. | Vehicle braking system |
EP0151028A3 (en) * | 1984-01-28 | 1985-08-28 | Tokico Ltd. | Vehicle braking system |
US4630706A (en) * | 1984-01-28 | 1986-12-23 | Tokico Ltd. | Vehicle braking system |
US5406969A (en) * | 1991-02-18 | 1995-04-18 | The University Of Melbourne | Regulation of flowrate of liquid furnace products |
Also Published As
Publication number | Publication date |
---|---|
GB1028994A (en) | 1966-05-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB718754A (en) | Improvements in or relating to power units, more particularly for vehicle braking systems | |
GB1515939A (en) | Vacuum servo-motor | |
GB939827A (en) | Fluid pressure servomotors, particularly for fluid pressure braking systems | |
CA2016419A1 (en) | Key member for retaining a control valve in a hub | |
GB2132716A (en) | Vacuum-operated brake booster | |
EP0060201B1 (en) | Tandem brake booster | |
GB1525019A (en) | Servo-power-assisted hydraulic brake-actuating arrangemen | |
GB1161142A (en) | Improved Fluid Pressure Servomotor. | |
US3103855A (en) | Multi-diaphragm fluid pressure motor construction | |
GB1131614A (en) | Improvements in fluid-pressure operated boosters or servo motors | |
GB1286424A (en) | Power boost mechanism | |
US3845692A (en) | Vacuum suspended type servo-motor | |
US3910048A (en) | Hydraulic lock for hydraulic ratio changer | |
US3911681A (en) | Control means for a two-stage servomotor | |
ES459013A1 (en) | Fluid-pressure operated servo-motor assemblies for vehicle braking systems | |
US3357311A (en) | Servomotor system | |
GB2010996A (en) | Brake Control Valve Assembly | |
GB1055830A (en) | Fluid pressure motor mechanism | |
GB1131613A (en) | Improvements in fluid-pressure operated boosters or servo-motors | |
GB1033137A (en) | Improvements in and relating to pressure responsive servomotors | |
GB1011734A (en) | Fluid pressure servomotor | |
GB1056020A (en) | Fluid pressure servomotor | |
US3130551A (en) | Valve mechanism for controlling servo devices of the differential air pressure type | |
GB1010511A (en) | Improvements in or relating to vehicle hand brakes | |
GB805537A (en) | Improvements in electro-hydraulic servo mechanisms |