GB1344087A - Rams - Google Patents

Rams

Info

Publication number
GB1344087A
GB1344087A GB1344087DA GB1344087A GB 1344087 A GB1344087 A GB 1344087A GB 1344087D A GB1344087D A GB 1344087DA GB 1344087 A GB1344087 A GB 1344087A
Authority
GB
United Kingdom
Prior art keywords
piston
fluid
master cylinder
rod
brake
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
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.)
Weatherill Ltd F E
Original Assignee
Weatherill Ltd F E
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 Weatherill Ltd F E filed Critical Weatherill Ltd F E
Publication of GB1344087A publication Critical patent/GB1344087A/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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/16—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs
    • B60T13/161—Systems with master cylinder
    • B60T13/162—Master cylinder mechanically coupled with booster
    • B60T13/163—Pilot valve provided inside booster piston

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

1344087 Hydraulic boosters for brake or clutch master cylinders F E WEATHERILL Ltd 6 Sept 1972 [29 Nov 1971] 55240/71 Heading F2F An hydraulic booster for a clutch or brake master cylinder, comprises a piston 34 slidable within a casing 10 and defining inlet and outlet chambers 15, 16 with ports 14, 17 connectible to a source of fluid pressure such as a pump 3 and to the brake respectively, the piston 34 having at least one first passageway with a ball valve 36 so that fluid can flow only from the outlet chamber to the inlet chamber therethrough and a second passageway through which fluid can flow from inlet to outlet via an adjustable orifice formed by a rod 24 co-operating with a bore 39 in the piston. The pedal 18 moves rod 24 to close the orifice and cause a pressure differential across the piston 34 which is then moved to operate the master cylinder. In the event of pressure failure from pump 3 the master cylinder is operated manually by means of rod 24 moving piston 34 the ball valve allowing reverse flow of fluid.
GB1344087D 1971-11-29 1971-11-29 Rams Expired GB1344087A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5524071 1971-11-29

Publications (1)

Publication Number Publication Date
GB1344087A true GB1344087A (en) 1974-01-16

Family

ID=10473355

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1344087D Expired GB1344087A (en) 1971-11-29 1971-11-29 Rams

Country Status (1)

Country Link
GB (1) GB1344087A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418129A1 (en) * 1978-02-25 1979-09-21 Girling Ltd IMPROVEMENTS TO SERVO-MOTOR ASSEMBLIES ACTUATED BY A PRESSURIZED FLUID

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418129A1 (en) * 1978-02-25 1979-09-21 Girling Ltd IMPROVEMENTS TO SERVO-MOTOR ASSEMBLIES ACTUATED BY A PRESSURIZED FLUID

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Legal Events

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