GB1366807A - Brake pressure control means - Google Patents

Brake pressure control means

Info

Publication number
GB1366807A
GB1366807A GB577772A GB577772A GB1366807A GB 1366807 A GB1366807 A GB 1366807A GB 577772 A GB577772 A GB 577772A GB 577772 A GB577772 A GB 577772A GB 1366807 A GB1366807 A GB 1366807A
Authority
GB
United Kingdom
Prior art keywords
pressure
space
valve
face
righthand
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
GB577772A
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 GB577772A priority Critical patent/GB1366807A/en
Publication of GB1366807A publication Critical patent/GB1366807A/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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/26—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels
    • 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
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • B60T17/226—Devices for monitoring or checking brake systems; Signal devices using devices being responsive to the difference between the fluid pressions in conduits of multiple braking systems

Landscapes

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

Abstract

1366807 Combined pressure warning device and reducing valve; valves GIRLING Ltd 31 Jan 1973 [8 Feb 1972] 5777/72 Headings F2E F2F and F2V A pressure differential warning device has first and second pressure spaces 8, 9 separated by a pressure responsive member 4, each space having its own inlet and outlet, the first space having its outlet 8B connected to a reducing valve and a by-pass outlet 8C closed by a valve member with an annular seal normally closed by face-to-face engagement with a valve seat and which opens upon movement of the responsive member upon the pressure being less in the second space than the first space. An electrical switch 7 has a plunger 6 which is actuated by movement of the responsive member 4 due to a V-groove. Upon movement of the member 4, say to the right, a lefthand sealed sleeve 5 is held stationary by contact with the switch, but a righthand sleeve 5 is moved by a circlip on the member 4. Upon subsequent balancing of pressures in the spaces 8, 9, the member and righthand sleeve 5 are actuated by fluid pressure to move the member back to its central position. A valve head 22 of the reducing valve is moved from its seating 23 by pressure fluid from the space 8 until the force on the lefthand face equals that in the righthand annular face causing subsequent closing. Thus the flow is metered through this valve to produce a lower downstream pressure. The fluid from the space 8 actuates rear wheel brakes, and that of the space 9 actuates front wheel brakes, the pressure of the rear brakes being lower. Upon failure of the front brakes due to pressure loss, the by-pass valve 10 allows full pressure for rear brake actuation.
GB577772A 1973-01-31 1973-01-31 Brake pressure control means Expired GB1366807A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB577772A GB1366807A (en) 1973-01-31 1973-01-31 Brake pressure control means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB577772A GB1366807A (en) 1973-01-31 1973-01-31 Brake pressure control means

Publications (1)

Publication Number Publication Date
GB1366807A true GB1366807A (en) 1974-09-11

Family

ID=9802435

Family Applications (1)

Application Number Title Priority Date Filing Date
GB577772A Expired GB1366807A (en) 1973-01-31 1973-01-31 Brake pressure control means

Country Status (1)

Country Link
GB (1) GB1366807A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190157A (en) * 1986-05-02 1987-11-11 Teves Gmbh Alfred Pressure control unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190157A (en) * 1986-05-02 1987-11-11 Teves Gmbh Alfred Pressure control unit
US4858999A (en) * 1986-05-02 1989-08-22 Alfred Teves Gmbh Pressure control unit with locking device for dual circuit brake systems
GB2190157B (en) * 1986-05-02 1989-12-13 Teves Gmbh Alfred Pressure control unit

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Legal Events

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