GB870971A - Improvements in or relating to fluid pressure control valve mechanisms - Google Patents

Improvements in or relating to fluid pressure control valve mechanisms

Info

Publication number
GB870971A
GB870971A GB38302/59A GB3830259A GB870971A GB 870971 A GB870971 A GB 870971A GB 38302/59 A GB38302/59 A GB 38302/59A GB 3830259 A GB3830259 A GB 3830259A GB 870971 A GB870971 A GB 870971A
Authority
GB
United Kingdom
Prior art keywords
valve
pedal
recess
pressure
plate
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
GB38302/59A
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.)
Bendix Westinghouse Automotive Air Brake Co
Original Assignee
Bendix Westinghouse Automotive Air Brake Co
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 Bendix Westinghouse Automotive Air Brake Co filed Critical Bendix Westinghouse Automotive Air Brake Co
Publication of GB870971A publication Critical patent/GB870971A/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
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/04—Driver's valves
    • B60T15/043—Driver's valves controlling service pressure brakes

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

870,971. Valves. BENDIX-WESTING- HOUSE AUTOMOTIVE AIR BRAKE CO. Nov. 11, 1959 [May 11, 1959], No. 38302/59. Class 135. [Also in Groups XXXII and XXXIV] A fluid pressure control valve, for a braking system, comprises a housing 10 in which a selflapping valve 24 is acted upon by a pressureresponsive member 44 to control the pressure differential between inlet and outlet chambers 16, 18. The member 44 is provided with a plunger portion 46 and a recess 54 which receives a rubber annulus 60, the annulus being initially axially compressed through a bolt 64 and a plate 62 movable in a larger recess 58 of the member. A brake pedal 66 is pivoted at 70 and carries a roller 72 which acts on a plunger 74. In operation, depression of the pedal 66 acts through the plunger 74, plate 62 and rubber annulus 60 to move the pressure-responsive member 44 whereby the end 48 of the plunger portion 46 first seats on the valve 24 and then opens this valve so that fluid passes from the inlet chamber to the outlet chamber. As the pressure in the outlet chamber increases, it acts on the member 44 to compress the rubber annulus 60 and allow the valve 24 to close. Further depression of the pedal increases the pressure in the outlet chamber until the plate 62 seats on the bottom of recess 58 after which, further depression of the lever 66 holds the valve 24 open. When the pedal is released the valve 24 closes and the fluid in the outlet chamber escapes past the end 48 of the plunger and through a bore 28 to the outside. The rubber annulus 60 is so constructed (see Group XXXII) that when it is compressed axially it will not bulge radially outward into the space between the plate 62 and recess 58. The valve described provides for small travel of the pedal, as compared with existing valves, over the range of pressures normally employed in braking and once the plate 62 is seated in the recess 58 and the valve 24 is open, only increased manual pressure on the pedal 66 is required to hold the valve open without further movement of this pedal.
GB38302/59A 1959-05-11 1959-11-11 Improvements in or relating to fluid pressure control valve mechanisms Expired GB870971A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US870971XA 1959-05-11 1959-05-11

Publications (1)

Publication Number Publication Date
GB870971A true GB870971A (en) 1961-06-21

Family

ID=22203095

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38302/59A Expired GB870971A (en) 1959-05-11 1959-11-11 Improvements in or relating to fluid pressure control valve mechanisms

Country Status (1)

Country Link
GB (1) GB870971A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1248490B (en) * 1962-08-29 1967-08-24 Berg Airlectro Products Co Control valve for compressed air braking systems on vehicles, especially motor vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1248490B (en) * 1962-08-29 1967-08-24 Berg Airlectro Products Co Control valve for compressed air braking systems on vehicles, especially motor vehicles

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