GB1349855A - Differential pressure operated servo boosters for vehicle brake systems - Google Patents

Differential pressure operated servo boosters for vehicle brake systems

Info

Publication number
GB1349855A
GB1349855A GB3595370A GB1349855DA GB1349855A GB 1349855 A GB1349855 A GB 1349855A GB 3595370 A GB3595370 A GB 3595370A GB 1349855D A GB1349855D A GB 1349855DA GB 1349855 A GB1349855 A GB 1349855A
Authority
GB
United Kingdom
Prior art keywords
finger
fingers
differential pressure
july
vehicle brake
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
GB3595370A
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
Publication of GB1349855A publication Critical patent/GB1349855A/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
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/573—Vacuum systems indirect, i.e. vacuum booster units characterised by reaction devices
    • B60T13/577—Vacuum systems indirect, i.e. vacuum booster units characterised by reaction devices using levers

Landscapes

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

Abstract

1349855 Brake boosters GIRLING Ltd 16 July 1971 [24 July 1970] 35953/70 Heading F2F In a modification of the vacuum suspended brake booster described and claimed in Specification 1,144,567, a deflecting plate 18 comprises twelve rigid radial fingers 20 which are radially outwardly divergent in shape and each finger 20 has a raised portion 24 which acts as a pivot point or edge in conjunction with a flat outer peripheral portion 28 of a dished fulcrum plate 26. As shown, each finger 20, in fact, comprises two V-section raised portions but each finger 20 could alternatively comprise one central V-section portion or a point contact pivot could be used. The portions 24 may be formed integrally with the fingers 20 by stamping or they may be attached separately. The fingers 20 are held in pockets formed between sheets 22 of plastic material placed one upon the other. The described arrangement is said to reduce hysteresis effects in operation of the booster.
GB3595370A 1970-07-24 1970-07-24 Differential pressure operated servo boosters for vehicle brake systems Expired GB1349855A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3595370 1970-07-24

Publications (1)

Publication Number Publication Date
GB1349855A true GB1349855A (en) 1974-04-10

Family

ID=10383335

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3595370A Expired GB1349855A (en) 1970-07-24 1970-07-24 Differential pressure operated servo boosters for vehicle brake systems

Country Status (3)

Country Link
DE (1) DE2136981C3 (en)
GB (1) GB1349855A (en)
ZA (1) ZA714609B (en)

Also Published As

Publication number Publication date
DE2136981A1 (en) 1972-01-27
DE2136981B2 (en) 1977-12-08
DE2136981C3 (en) 1978-07-27
ZA714609B (en) 1972-07-26

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee