GB933315A - Improvements in or relating to valve devices for controlling servo-devices of the differential air pressure type, particularly for hydraulic brakes - Google Patents

Improvements in or relating to valve devices for controlling servo-devices of the differential air pressure type, particularly for hydraulic brakes

Info

Publication number
GB933315A
GB933315A GB3289259A GB3289259A GB933315A GB 933315 A GB933315 A GB 933315A GB 3289259 A GB3289259 A GB 3289259A GB 3289259 A GB3289259 A GB 3289259A GB 933315 A GB933315 A GB 933315A
Authority
GB
United Kingdom
Prior art keywords
servo
valve
pedal
devices
master cylinder
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
GB3289259A
Inventor
Leslie Cyril Chouings
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.)
Automotive Products PLC
Original Assignee
Automotive Products PLC
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 Automotive Products PLC filed Critical Automotive Products PLC
Priority to GB3289259A priority Critical patent/GB933315A/en
Priority to DEA35638A priority patent/DE1235161B/en
Publication of GB933315A publication Critical patent/GB933315A/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
    • 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
    • B60T13/244—Mechanical command of the control valve, hydraulic transmission to the brakes

Landscapes

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

Abstract

933,315. Fluid-pressure brakes. AUTOMOTIVE PRODUCTS CO. Ltd. Aug. 30, 1960 [Sept. 28, 1959], No. 32892/59. Class 103 (1). In a servo-assisted braking system for vehicles, a valve device 10 for controlling the servo device 1 of the differential air pressure type is adapted to be operatively associated with a pedal 23 or other operator-operated means associated with a master cylinder 22 so that movement of the pedal 23 causes displacement of the master cylinder 22 to effect operation of the valve device 10 through suitable mechanical linkage 25, 20. The servo device 1 is of the vacuum suspended type having vacuum present in chambers 3, 5 situated one on each side of an annular flexible diaphragm 2 when the apparatus is in its inoperative state shown in Fig. 1, an atmospheric valve head 11 being in its closed position and the valve head 12 being in its open position allowing vacuum to be present in each of chambers 3, 5. When the brake pedal 23 is depressed, the master cylinder 22 is slidably moved to actuate a lever arm 25 connected thereto at 24 about the pivoted connection 26 of the lever arm 25 to a fixed mounting. Movement of arm 25 causes displacement of the plunger 20 and diaphragm 2 connected thereto in order to close the valve port 13 and open valve port 7 to admit atmospheric air to the end 5 of the servo device 1 and cause movement of the diaphragm assembly to effect the servo operation which assist the pedal effort.
GB3289259A 1959-09-28 1959-09-28 Improvements in or relating to valve devices for controlling servo-devices of the differential air pressure type, particularly for hydraulic brakes Expired GB933315A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3289259A GB933315A (en) 1959-09-28 1959-09-28 Improvements in or relating to valve devices for controlling servo-devices of the differential air pressure type, particularly for hydraulic brakes
DEA35638A DE1235161B (en) 1959-09-28 1960-09-23 Brake system, especially for motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3289259A GB933315A (en) 1959-09-28 1959-09-28 Improvements in or relating to valve devices for controlling servo-devices of the differential air pressure type, particularly for hydraulic brakes

Publications (1)

Publication Number Publication Date
GB933315A true GB933315A (en) 1963-08-08

Family

ID=10345596

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3289259A Expired GB933315A (en) 1959-09-28 1959-09-28 Improvements in or relating to valve devices for controlling servo-devices of the differential air pressure type, particularly for hydraulic brakes

Country Status (2)

Country Link
DE (1) DE1235161B (en)
GB (1) GB933315A (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE765095C (en) * 1941-05-23 1954-02-08 Teves Kg Alfred Brake valve for several independent pressure medium brake circuits, of which at least one is hydraulic, especially for motor vehicles
DE854017C (en) * 1951-01-06 1952-10-30 Bosch Gmbh Robert Braking device for motor vehicles, especially truck trains
GB765079A (en) * 1954-07-09 1957-01-02 Dewandre Co Ltd C Improvements relating to power-operated braking mechanisms for road vehicles
US2867193A (en) * 1955-02-15 1959-01-06 Kelsey Hayes Co Power mechanism
US2883831A (en) * 1957-01-22 1959-04-28 Kelsey Hayes Co Booster brake mechanism

Also Published As

Publication number Publication date
DE1235161B (en) 1967-02-23

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