GB1281596A - Improvements in and relating to servo motors, especially for vehicle braking systems - Google Patents
Improvements in and relating to servo motors, especially for vehicle braking systemsInfo
- Publication number
- GB1281596A GB1281596A GB4417969A GB4417969A GB1281596A GB 1281596 A GB1281596 A GB 1281596A GB 4417969 A GB4417969 A GB 4417969A GB 4417969 A GB4417969 A GB 4417969A GB 1281596 A GB1281596 A GB 1281596A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- diaphragm
- casing
- annular plate
- sept
- 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
- B60T13/563—Vacuum systems indirect, i.e. vacuum booster units with multiple booster units, e.g. tandem booster units
-
- 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
- B60T13/567—Vacuum systems indirect, i.e. vacuum booster units characterised by constructional features of the casing or by its strengthening or mounting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
1281596 Fluid pressure brakes GIRLING Ltd 3 Sept 1970 [6 Sept 1969] 44179/69 Heading F2F [Also in Division F1] The peripheral head 38 of a rolling diaphragm 36 is clamped between an outwardly and radially directed shoulder 22 at one end portion of a generally cylindrical vacuum motor casing 10 and the rim 30 of an internal annular plate 26; the rim 30 being interposed between the head 38 and a circular row of inwardly directed dimples 24 formed in the casing adjacent the shoulder 22 thereof. The diaphragm 36 forms with the casing 10 a chamber 32 having a vacuum connection 56 and being in open communication through a spacer sleeve 58 with a chamber 46 hounded by a further rolling diaphragm 50 and an annular plate 40. The other side of diaphragm 50 forms with the casing end a chamber 48 connected by a duct 72 with a further chamber 34 bounded by diaphragm 36 and the annular plate 26. Chamber 48 and hence 34 may be connected to vacuum in chamber 46 or to atmospheric pressure according to the seating at 92, 90 of a known valve closure member 88 moved axially by a manual push rod 84. In operation and on pushing rod 84, diaphragms 36, 50 move to the left against a spring 68 and thus displace an output rod 82 which operates a brake master cylinder.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4417969A GB1281596A (en) | 1969-09-06 | 1969-09-06 | Improvements in and relating to servo motors, especially for vehicle braking systems |
AU19329/70A AU1932970A (en) | 1969-09-06 | 1970-08-28 | Improvements in and relating to servo motors, especially for vehicle braking systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4417969A GB1281596A (en) | 1969-09-06 | 1969-09-06 | Improvements in and relating to servo motors, especially for vehicle braking systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1281596A true GB1281596A (en) | 1972-07-12 |
Family
ID=10432139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4417969A Expired GB1281596A (en) | 1969-09-06 | 1969-09-06 | Improvements in and relating to servo motors, especially for vehicle braking systems |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU1932970A (en) |
GB (1) | GB1281596A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2450729A1 (en) * | 1979-03-05 | 1980-10-03 | Teves Gmbh Alfred | TWO-CIRCUIT PRESSURE AMPLIFIER |
DE3111188A1 (en) * | 1981-03-21 | 1982-09-30 | Alfred Teves Gmbh, 6000 Frankfurt | MECHANICALLY CONTROLLABLE POWER AMPLIFIER, ESPECIALLY FOR BRAKE SYSTEMS OF MOTOR VEHICLES |
US4637505A (en) * | 1981-09-15 | 1987-01-20 | Luk Lamellen Und Kupplungsbau Gmbh | Fluid-operated clutch disengaging apparatus |
FR2623763A1 (en) * | 1987-12-01 | 1989-06-02 | Bendix France | BRAKE ASSIST MOTOR |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU449949B2 (en) * | 1970-04-29 | 1974-06-10 | Girling Limited | Fluid pressure servomotor body |
-
1969
- 1969-09-06 GB GB4417969A patent/GB1281596A/en not_active Expired
-
1970
- 1970-08-28 AU AU19329/70A patent/AU1932970A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2450729A1 (en) * | 1979-03-05 | 1980-10-03 | Teves Gmbh Alfred | TWO-CIRCUIT PRESSURE AMPLIFIER |
DE3111188A1 (en) * | 1981-03-21 | 1982-09-30 | Alfred Teves Gmbh, 6000 Frankfurt | MECHANICALLY CONTROLLABLE POWER AMPLIFIER, ESPECIALLY FOR BRAKE SYSTEMS OF MOTOR VEHICLES |
US4637505A (en) * | 1981-09-15 | 1987-01-20 | Luk Lamellen Und Kupplungsbau Gmbh | Fluid-operated clutch disengaging apparatus |
FR2623763A1 (en) * | 1987-12-01 | 1989-06-02 | Bendix France | BRAKE ASSIST MOTOR |
EP0319359A1 (en) * | 1987-12-01 | 1989-06-07 | BENDIX EUROPE Services Techniques S.A. | Brake booster servo motor |
US5052274A (en) * | 1987-12-01 | 1991-10-01 | Bendix France | Tandem brake booster with return spring arrangement for rear piston chamber |
Also Published As
Publication number | Publication date |
---|---|
AU1932970A (en) | 1972-03-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |