GB1108568A - Hydraulic braking system incorporating a fluid pressure booster - Google Patents

Hydraulic braking system incorporating a fluid pressure booster

Info

Publication number
GB1108568A
GB1108568A GB2893164A GB2893164A GB1108568A GB 1108568 A GB1108568 A GB 1108568A GB 2893164 A GB2893164 A GB 2893164A GB 2893164 A GB2893164 A GB 2893164A GB 1108568 A GB1108568 A GB 1108568A
Authority
GB
United Kingdom
Prior art keywords
master cylinder
pressure
booster
control piston
brakes
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
GB2893164A
Inventor
Harold Fineman
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.)
Girling Ltd
Original Assignee
Girling Ltd
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 Girling Ltd filed Critical Girling Ltd
Priority to GB2893164A priority Critical patent/GB1108568A/en
Publication of GB1108568A publication Critical patent/GB1108568A/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
    • B60T13/242—The control valve is provided as one unit with the servomotor cylinder
    • B60T13/245—Hydraulic command of the control valve, hydraulic transmission to the brake

Landscapes

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

Abstract

1,108,568. Fluid pressure operated brakes. GIRLING Ltd. 30 June, 1965 [14 July, 1964], No. 28931/64. Heading F2F. In a booster and. auxiliary master cylinder unit for an hydraulic braking system of the kind in which a piston 24 in the auxiliary master cylinder 21 is actuated by the booster, the energization of which is controlled through valves carried by a T-shaped rocking lever 28 which is engaged by a differential control piston 29 acted upon at one end by hydraulic pressure from a pedal-operated master cylinder and at the other end by hydraulic pressure generated in the auxiliary master cylinder, an axial passage 34 in the control piston 29 is closed by a valve 35 when the control piston moves away from a stationary abutment 39. As shown fluid pressure from a pedal operated tandem master cylinder is connected to a port 33 of the auxiliary master cylinder. Prior to operation of the brakes, the control piston 29 is urged leftwards by a spring 38 so that the valve 35 is open and fluid from the tandem master cylinder may pass through the control piston directly to the slave cylinders of the brakes. When fluid is supplied to the inlet 33, the hydraulic pressure moves the control piston 29 rightwards, closing the valve 35 and actuating the rocking lever 28, which forms part of a valve assembly of the type disclosed in Specification 786,524, to operate the booster and generate pressure in the pressure space 21 of the auxiliary master cylinder. This pressure is communicated to the store cylinders of the brakes and also acts on the small end of the differential piston 29 in opposition to the force exerted by the pressure on the large end of the control piston. In a braking system using the booster (Fig. 1, not shown) the front wheel brakes are operated by pressure from the booster and the rear wheel brake, which have store cylinders (13) larger in diameter than the front wheel brake cylinders 18, are operated directly from the master cylinder 10. A spring-loaded valve 42 may be inserted in the line 17 from the booster to prevent the front wheel brakes being actuated until a predetermined pressure is reached.
GB2893164A 1964-07-14 1964-07-14 Hydraulic braking system incorporating a fluid pressure booster Expired GB1108568A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2893164A GB1108568A (en) 1964-07-14 1964-07-14 Hydraulic braking system incorporating a fluid pressure booster

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2893164A GB1108568A (en) 1964-07-14 1964-07-14 Hydraulic braking system incorporating a fluid pressure booster

Publications (1)

Publication Number Publication Date
GB1108568A true GB1108568A (en) 1968-04-03

Family

ID=10283522

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2893164A Expired GB1108568A (en) 1964-07-14 1964-07-14 Hydraulic braking system incorporating a fluid pressure booster

Country Status (1)

Country Link
GB (1) GB1108568A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036271A1 (en) * 1980-03-17 1981-09-23 LUCAS INDUSTRIES public limited company Master cylinder assemblies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036271A1 (en) * 1980-03-17 1981-09-23 LUCAS INDUSTRIES public limited company Master cylinder assemblies

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