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GB1435854A - Tandem mastercylinder for a split braking circuit - Google Patents

Tandem mastercylinder for a split braking circuit

Info

Publication number
GB1435854A
GB1435854A GB3699974A GB3699974A GB1435854A GB 1435854 A GB1435854 A GB 1435854A GB 3699974 A GB3699974 A GB 3699974A GB 3699974 A GB3699974 A GB 3699974A GB 1435854 A GB1435854 A GB 1435854A
Authority
GB
United Kingdom
Prior art keywords
valve
chamber
piston
actuators
tandem
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
GB3699974A
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.)
DBA SA
Original Assignee
DBA SA
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 DBA SA filed Critical DBA SA
Publication of GB1435854A publication Critical patent/GB1435854A/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
    • 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
    • B60T11/28—Valves specially adapted therefor
    • B60T11/34—Pressure reducing or limiting valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)

Abstract

1435854 Tandem master cylinders SOC ANON DBA 22 Aug 1974 [11 Sept 1973] 36999/74 Heading F2F In a tandem master cylinder 10, a control piston 16 and a floating piston 20 defines a first chamber 22 therebetween, connected to brake actuators via a connecting valve 38 or via a by-pass valve 40, the movable member 58 of which is actuated by transmission means to open the valve by the floating piston if pressure in a second chamber 24 between the piston 20 and an end of a main bore 14 is lower than in the first chamber. With operating pressures in both chambers 24, 22 fluid flows directly to brake actuators 34 for front brakes and via the valve 38, a modulating or limiting valve, e.g. dependent on vehicle load, to actuators 28 for rear brakes respectively. If a pressure failure occurs in the chamber 24, the piston 20 contacts a tappet 62 to open the valve 40 against a spring 60 to provide full pressure at the actuators 28.
GB3699974A 1973-09-11 1974-08-22 Tandem mastercylinder for a split braking circuit Expired GB1435854A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7332564A FR2243095B1 (en) 1973-09-11 1973-09-11

Publications (1)

Publication Number Publication Date
GB1435854A true GB1435854A (en) 1976-05-19

Family

ID=9124842

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3699974A Expired GB1435854A (en) 1973-09-11 1974-08-22 Tandem mastercylinder for a split braking circuit

Country Status (3)

Country Link
FR (1) FR2243095B1 (en)
GB (1) GB1435854A (en)
IT (1) IT1021140B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0146734A1 (en) * 1983-12-01 1985-07-03 Allied Corporation Master cylinder and proportioning valve assembly
DE3736057A1 (en) * 1987-10-24 1989-05-03 Teves Gmbh Alfred TANDEM MAIN CYLINDERS FOR HYDRAULIC BRAKE SYSTEMS OF MOTOR VEHICLES

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2830223A1 (en) * 1978-07-10 1980-01-24 Teves Gmbh Alfred TANDEM MAIN CYLINDER
US4280738A (en) * 1978-07-10 1981-07-28 Itt Industries, Inc. Tandem master cylinder
JPS5926507B2 (en) * 1979-02-14 1984-06-28 日産自動車株式会社 Tandem master cylinder with hydraulic control valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0146734A1 (en) * 1983-12-01 1985-07-03 Allied Corporation Master cylinder and proportioning valve assembly
DE3736057A1 (en) * 1987-10-24 1989-05-03 Teves Gmbh Alfred TANDEM MAIN CYLINDERS FOR HYDRAULIC BRAKE SYSTEMS OF MOTOR VEHICLES

Also Published As

Publication number Publication date
FR2243095B1 (en) 1976-06-18
IT1021140B (en) 1978-01-30
FR2243095A1 (en) 1975-04-04

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Legal Events

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