GB1256797A - - Google Patents

Info

Publication number
GB1256797A
GB1256797A GB1256797DA GB1256797A GB 1256797 A GB1256797 A GB 1256797A GB 1256797D A GB1256797D A GB 1256797DA GB 1256797 A GB1256797 A GB 1256797A
Authority
GB
United Kingdom
Prior art keywords
valve
master cylinder
pressure
hydraulic
pneumatic
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
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 filed Critical
Publication of GB1256797A publication Critical patent/GB1256797A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

1,256,797. Controlling clutches. AUTOMOTIVE PRODUCTS CO. Ltd. 27 Feb., 1970 [26 March, 1969], No. 15776/69. Heading F2L. [Also in Division G3] A fluid-pressure servomotor for actuating a vehicle clutch has a pedal-operated master cylinder 44 which supplies hydraulic pressure to the small diameter end 14 of a spring- loaded stepped piston (13) acting on the clutch thrust bearing and simultaneously operates a valve 23 to connect a pneumatic (or hydraulic) pressure source 42 to a chamber (18) via open valve 29 and port 40 so as to act on the annular surface of the stepped piston in the same direction as the master cylinder pressure. Reduction in master cylinder pressure causes valve 29 to close and seat 34 to move away from valve 33 to connect port 40 to atmosphere via bores 35, 36 and outlet 38. Valve 33 is aligned with plunger 25 by cruciform guide 39 moving in bore 35 or a disc moving in enlargement 30. Master cylinder 44 may be replaced by a valve controlling flow from an hydraulic or pneumatic pressure source.
GB1256797D 1969-03-26 1969-03-26 Expired GB1256797A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1577669 1969-03-26

Publications (1)

Publication Number Publication Date
GB1256797A true GB1256797A (en) 1971-12-15

Family

ID=10065272

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1256797D Expired GB1256797A (en) 1969-03-26 1969-03-26

Country Status (3)

Country Link
FR (1) FR2037992A5 (en)
GB (1) GB1256797A (en)
SE (1) SE366096B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041840A (en) * 1974-12-31 1977-08-16 Robert Bosch Gmbh Control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041840A (en) * 1974-12-31 1977-08-16 Robert Bosch Gmbh Control system

Also Published As

Publication number Publication date
FR2037992A5 (en) 1970-12-31
SE366096B (en) 1974-04-08

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PLNP Patent lapsed through nonpayment of renewal fees