GB1105351A - Hydraulic power control device - Google Patents

Hydraulic power control device

Info

Publication number
GB1105351A
GB1105351A GB460866A GB460866A GB1105351A GB 1105351 A GB1105351 A GB 1105351A GB 460866 A GB460866 A GB 460866A GB 460866 A GB460866 A GB 460866A GB 1105351 A GB1105351 A GB 1105351A
Authority
GB
United Kingdom
Prior art keywords
piston
chamber
spool
rod
lever
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
Application number
GB460866A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DBA SA
Original Assignee
DBA SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DBA SA filed Critical DBA SA
Publication of GB1105351A publication Critical patent/GB1105351A/en
Expired legal-status Critical Current

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
    • B60T13/241—Differential pressure systems
    • 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
    • B60T13/12—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 liquid
    • B60T13/14—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 liquid using accumulators or reservoirs fed by pumps
    • B60T13/142—Systems with master cylinder
    • B60T13/143—Master cylinder mechanically coupled with booster

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)
  • Braking Arrangements (AREA)

Abstract

1,105,351. Brake cylinders. SOC. ANON. D.B.A. 2 Feb., 1966 [5 Feb., 1965; 31 Aug., 1965], No. 4608/66. Heading F2F. An hydraulic control for the master-cylinder 12 of a brake system has a servo-motor 10 in which the movements of its piston 44 are effected by pressure in a chamber 70 which is controlled by a servo-valve spool 58 disposed in a chamber 42 between an opening 52 to an accumulator 54 and one 56 to a reservoir (not shown), the displacements of the spool 58 being actuated by a lever 74 pivoted on the casting 14 at 78 and operating on the piston 44 and the spool 58 through a feeler member 76 which is tiltable about an axis 86 carried on the lever 74 so as to move with it when it is tilted by movement of a rod 84 of given cross-sectional area where it extends into the control chamber and is adapted to abut the piston 44 in case of a failure in the control pressure. The lever 74 is in the form of a U which is pivoted through both its legs at 78 and is slit transversely at 80 to receive an axis pin 82 which passes through the push-rod 84. When the rod 84 is pushed into the chamber 70 the lever 74 carries the pivot 86 of the member 76 forward so that its surfaces 94 and 96 are urged against the piston 44 and the spool 58. The spring 48 of the former is stronger than the spring 62 of the latter so that the spool moves into its cylinder 42, first covering the reservoir outlet 56 and then uncovering the accumulator outlet 52 from which pressure fluid then passes through channels 66 in the spool and over its reduced diameter end 68 into the chamber 70. The pressure in the chamber 70 then drives the piston 44 against its spring 48 to actuate the piston 20 of the master cylinder 12 through the push-rod 50. At the same time the pressure presses back on the push-rod 84 providing "feel" to the operator. Fig. 3 (not shown), illustrates another embodiment in which modifications are made to a number of the components to simplify manufacture and assembly.
GB460866A 1965-02-05 1966-02-02 Hydraulic power control device Expired GB1105351A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR4595A FR1436608A (en) 1965-02-05 1965-02-05 Assisted braking system with follower mechanism
FR29961 1965-08-31

Publications (1)

Publication Number Publication Date
GB1105351A true GB1105351A (en) 1968-03-06

Family

ID=26161906

Family Applications (1)

Application Number Title Priority Date Filing Date
GB460866A Expired GB1105351A (en) 1965-02-05 1966-02-02 Hydraulic power control device

Country Status (8)

Country Link
BE (1) BE675935A (en)
BR (1) BR6676873D0 (en)
CH (1) CH456356A (en)
DE (1) DE1580690A1 (en)
ES (1) ES322644A1 (en)
FR (2) FR1436608A (en)
GB (1) GB1105351A (en)
SE (1) SE341823B (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603209A (en) * 1969-01-16 1971-09-07 Bendix Corp Hydraulic brake booster
US3646850A (en) * 1970-03-16 1972-03-07 Bendix Corp Detent mechanism for brake booster
US3677140A (en) * 1970-11-23 1972-07-18 Bendix Corp Hydraulic booster with safety device
US3728942A (en) * 1971-01-22 1973-04-24 Bendix Corp Hydraulic brake booster pressure limiting device
US3805671A (en) * 1971-12-24 1974-04-23 Dba Sa Hydraulic power control device
DE2460529A1 (en) * 1973-12-22 1975-07-03 Girling Ltd MASTER CYLINDER FOR HYDRAULIC BRAKE SYSTEM
DE2461295A1 (en) * 1974-12-23 1976-07-01 Teves Gmbh Alfred BRAKE DEVICE FOR VEHICLES
DE2521368A1 (en) * 1975-05-14 1976-11-25 Teves Gmbh Alfred Vacuum servo for hydraulic brakes - with pressure control valve for fail safe manual overide if servo fails
FR2459167A1 (en) * 1979-06-21 1981-01-09 Bendix Corp HYDRAULIC BRAKING AMPLIFIER
DE3338322A1 (en) * 1983-10-21 1985-05-02 Alfred Teves Gmbh, 6000 Frankfurt Pressure medium operated vehicle brake system
GB2185548A (en) * 1986-01-15 1987-07-22 Teves Gmbh Alfred Hydraulic brake force booster

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3633462A (en) * 1970-02-24 1972-01-11 Bendix Corp Bypass orifice for hydraulic boost device
JPS5148222B1 (en) * 1970-03-09 1976-12-20
FR2188072B1 (en) * 1972-06-12 1974-07-26 Dba
FR2188073B1 (en) * 1972-06-12 1974-07-26 Dba
FR2210727B1 (en) * 1972-12-18 1978-03-10 Dba
DE2447445C2 (en) * 1974-10-04 1985-07-04 geb. Sewerin Frieda 3257 Springe Hildebrandt Protective device for piston rods of hydraulic or pneumatic working cylinders
FR2448463A1 (en) * 1979-02-06 1980-09-05 Ferodo Sa ASSISTED BRAKING DEVICE
DE2952364A1 (en) * 1979-12-24 1981-08-06 Wabco Fahrzeugbremsen Gmbh, 3000 Hannover TRANSMITTER CYLINDER FOR CONTROLLING PRESSURE
FR2483868A1 (en) * 1980-06-06 1981-12-11 Dba HYDRAULIC BRAKING AMPLIFIER
DE3037218C2 (en) * 1980-10-02 1982-09-02 Volkswagenwerk Ag, 3180 Wolfsburg Hydraulic booster valve, in particular for a hydraulic motor vehicle brake system
DE3108908A1 (en) * 1981-03-09 1982-09-30 Alfred Teves Gmbh, 6000 Frankfurt Hydraulic power amplifier
DE3136975A1 (en) * 1981-09-17 1983-04-14 Alfred Teves Gmbh, 6000 Frankfurt HYDRAULIC POWER AMPLIFIER
DE3315730C2 (en) * 1983-04-29 1993-10-21 Teves Gmbh Alfred Hydraulic booster
DE3725249A1 (en) * 1987-07-30 1989-02-09 Teves Gmbh Alfred HYDRAULIC POWER AMPLIFIER

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603209A (en) * 1969-01-16 1971-09-07 Bendix Corp Hydraulic brake booster
US3646850A (en) * 1970-03-16 1972-03-07 Bendix Corp Detent mechanism for brake booster
US3677140A (en) * 1970-11-23 1972-07-18 Bendix Corp Hydraulic booster with safety device
US3728942A (en) * 1971-01-22 1973-04-24 Bendix Corp Hydraulic brake booster pressure limiting device
US3805671A (en) * 1971-12-24 1974-04-23 Dba Sa Hydraulic power control device
DE2460529A1 (en) * 1973-12-22 1975-07-03 Girling Ltd MASTER CYLINDER FOR HYDRAULIC BRAKE SYSTEM
DE2461295A1 (en) * 1974-12-23 1976-07-01 Teves Gmbh Alfred BRAKE DEVICE FOR VEHICLES
DE2521368A1 (en) * 1975-05-14 1976-11-25 Teves Gmbh Alfred Vacuum servo for hydraulic brakes - with pressure control valve for fail safe manual overide if servo fails
FR2459167A1 (en) * 1979-06-21 1981-01-09 Bendix Corp HYDRAULIC BRAKING AMPLIFIER
US4296674A (en) * 1979-06-21 1981-10-27 The Bendix Corporation Quick take-up brake booster
DE3338322A1 (en) * 1983-10-21 1985-05-02 Alfred Teves Gmbh, 6000 Frankfurt Pressure medium operated vehicle brake system
GB2185548A (en) * 1986-01-15 1987-07-22 Teves Gmbh Alfred Hydraulic brake force booster
GB2185548B (en) * 1986-01-15 1989-10-25 Teves Gmbh Alfred Hydraulic force booster

Also Published As

Publication number Publication date
BE675935A (en) 1966-06-16
ES322644A1 (en) 1966-12-16
DE1580690A1 (en) 1970-07-16
FR88761E (en) 1967-06-07
BR6676873D0 (en) 1973-08-02
SE341823B (en) 1972-01-17
FR1436608A (en) 1966-04-29
CH456356A (en) 1968-07-15

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