GB1209354A - Improvements in hydraulic braking systems - Google Patents

Improvements in hydraulic braking systems

Info

Publication number
GB1209354A
GB1209354A GB4172968A GB4172968A GB1209354A GB 1209354 A GB1209354 A GB 1209354A GB 4172968 A GB4172968 A GB 4172968A GB 4172968 A GB4172968 A GB 4172968A GB 1209354 A GB1209354 A GB 1209354A
Authority
GB
United Kingdom
Prior art keywords
piston
cylinder
spring
spigots
opposite sides
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
GB4172968A
Inventor
Gordon Haswell Moyes
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 US800091A priority Critical patent/US3520577A/en
Priority to DE19691908282 priority patent/DE1908282C/en
Priority to ES363857A priority patent/ES363857A1/en
Priority to JP44012212A priority patent/JPS4928942B1/ja
Priority to FR6904299A priority patent/FR2002277A1/fr
Publication of GB1209354A publication Critical patent/GB1209354A/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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/101—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic equalising arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
    • B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
    • B62D11/06—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source
    • B62D11/08—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using brakes or clutches as main steering-effecting means

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Braking Arrangements (AREA)

Abstract

1,209,354. Compensators for fluid pressure brakes. GIRLING Ltd. 4 Feb., 1969 [20 Feb, 1968], Nos. 8151/68 and 41729/68. Heading F2F. A compensator for an hydraulic braking system of the kind in which fluid under pressure is supplied to slave cylinders on wheels on opposite sides of a vehicle by separate master cylinders 35, 36 each operated by its own pedal, comprises a cylinder 19 adapted to be connected on opposite sides of a piston 26 working in the cylinder to the outlets from the master cylinders, the piston normally being held in a substantially central position in the cylinder by two oppositely acting springs 32, 33 of different strengths which hold the piston in engagement with a locating stop 24; the piston is free to move in either direction against the resilient resistance of the springs under differential pressures in the cylinder on opposite sides of the piston. As shown, the piston is provided with an O-ring seal 27 and has spigots 28, 29, the spigot 29 passing through a washer 31 held against a shoulder 24 by the spring 32 which is of greater strength than the spring 33. The cylinder 19, as shown may be integral with the master cylinders. An increase in fluid pressure in the smaller end of the bore 23 causes the piston to move to the right as seen in the Figure against the pressure of the spring 32 and assisted by the spring 33 and taking with it the washer 31, the travel of the piston being limited by the spigot 29. In the event of failure of a pipe line or other part of the hydraulic system on one side of the vehicle the piston moves axially until one of the spigots abuts the adjacent end of the cylinder whereby the brakes on the other side of the vehicle can still be applied. In a modification, the O-ring seal is omitted and rubber-faced sealing members provided on the ends of the spigots engage and close off ports at the ends of the cylinder.
GB4172968A 1968-02-20 1968-02-20 Improvements in hydraulic braking systems Expired GB1209354A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US800091A US3520577A (en) 1968-02-20 1969-02-18 Hydraulic braking systems
DE19691908282 DE1908282C (en) 1968-02-20 1969-02-19 Compensating cylinder for a hydraulic steering brake system for vehicles
ES363857A ES363857A1 (en) 1968-02-20 1969-02-20 Hydraulic braking systems
JP44012212A JPS4928942B1 (en) 1968-02-20 1969-02-20
FR6904299A FR2002277A1 (en) 1968-02-20 1969-02-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB815168 1968-02-20

Publications (1)

Publication Number Publication Date
GB1209354A true GB1209354A (en) 1970-10-21

Family

ID=9846734

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4172968A Expired GB1209354A (en) 1968-02-20 1968-02-20 Improvements in hydraulic braking systems

Country Status (2)

Country Link
GB (1) GB1209354A (en)
SU (1) SU617000A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202290A (en) * 1987-03-20 1988-09-21 Lucas Ind Plc Master cylinder assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202290A (en) * 1987-03-20 1988-09-21 Lucas Ind Plc Master cylinder assembly

Also Published As

Publication number Publication date
SU617000A3 (en) 1978-07-25

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Legal Events

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