GB1486301A - Master cylinders for vehicle dual circuit braking system - Google Patents

Master cylinders for vehicle dual circuit braking system

Info

Publication number
GB1486301A
GB1486301A GB3841474A GB3841474A GB1486301A GB 1486301 A GB1486301 A GB 1486301A GB 3841474 A GB3841474 A GB 3841474A GB 3841474 A GB3841474 A GB 3841474A GB 1486301 A GB1486301 A GB 1486301A
Authority
GB
United Kingdom
Prior art keywords
chamber
piston
valve
pressure
chambers
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
GB3841474A
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 GB3841474A priority Critical patent/GB1486301A/en
Priority to IN1634/CAL/75A priority patent/IN145937B/en
Priority to FR7526864A priority patent/FR2283803A1/en
Priority to DE19752539190 priority patent/DE2539190A1/en
Publication of GB1486301A publication Critical patent/GB1486301A/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
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/20—Tandem, side-by-side, or other multiple master cylinder units

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)

Abstract

1486301 Master cylinders GIRLING Ltd 15 Aug 1975 [3 Sept 1974] 38414/74 Heading F2F A tandem master cylinder with first and second pressure chambers 4, 4A has a by-pass outlet 6 to the second chamber controlled by a by-pass valve 8 which includes a differential area piston 9 subjected to the fluid pressures of the chambers 4, 4A on opposite sides thereof coupled to a valve member B, the valve being open when the chambers are substantially unpressurized but closed by built-up of pressure in the first chamber so that the valve is operated during each normal master cylinder operation and is opened by a predetermined excess pressure in the second chamber over that in the first chamber. Failure of pressure to the front brakes, connected to chamber 4, result in piston 9 being moved to pull member 13 clear of outlet 6 so that primary piston 2A engages secondary piston 2 and chamber 4A is pressurized, the fluid passing through outlet 6 direct to the rear brakes. As shown the piston 9 slides in a through bore 10 in piston 2A.
GB3841474A 1974-09-03 1974-09-03 Master cylinders for vehicle dual circuit braking system Expired GB1486301A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB3841474A GB1486301A (en) 1974-09-03 1974-09-03 Master cylinders for vehicle dual circuit braking system
IN1634/CAL/75A IN145937B (en) 1974-09-03 1975-08-21
FR7526864A FR2283803A1 (en) 1974-09-03 1975-09-02 MASTER CYLINDER FOR A DOUBLE CIRCUIT BRAKE SYSTEM FOR VEHICLE
DE19752539190 DE2539190A1 (en) 1974-09-03 1975-09-03 MAIN CYLINDER ARRANGEMENT FOR DUAL-CIRCUIT BRAKE SYSTEM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3841474A GB1486301A (en) 1974-09-03 1974-09-03 Master cylinders for vehicle dual circuit braking system

Publications (1)

Publication Number Publication Date
GB1486301A true GB1486301A (en) 1977-09-21

Family

ID=10403306

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3841474A Expired GB1486301A (en) 1974-09-03 1974-09-03 Master cylinders for vehicle dual circuit braking system

Country Status (4)

Country Link
DE (1) DE2539190A1 (en)
FR (1) FR2283803A1 (en)
GB (1) GB1486301A (en)
IN (1) IN145937B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2825132A1 (en) * 1978-06-08 1979-12-13 Bosch Gmbh Robert HYDRAULIC BRAKE AMPLIFIER
US4280738A (en) * 1978-07-10 1981-07-28 Itt Industries, Inc. Tandem master cylinder
US4249379A (en) * 1978-08-23 1981-02-10 The Bendix Corporation Fluid pressure generator and valve member therefor
DE3712040C1 (en) * 1987-04-09 1988-09-29 Bosch Gmbh Robert Valve for a vehicle brake system

Also Published As

Publication number Publication date
DE2539190A1 (en) 1976-03-11
IN145937B (en) 1979-01-20
FR2283803A1 (en) 1976-04-02
FR2283803B1 (en) 1981-06-26

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Legal Events

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