GB875514A - Improvements in or relating to servo-assisted clutch-operating mechanisms - Google Patents

Improvements in or relating to servo-assisted clutch-operating mechanisms

Info

Publication number
GB875514A
GB875514A GB5798/59A GB579859A GB875514A GB 875514 A GB875514 A GB 875514A GB 5798/59 A GB5798/59 A GB 5798/59A GB 579859 A GB579859 A GB 579859A GB 875514 A GB875514 A GB 875514A
Authority
GB
United Kingdom
Prior art keywords
valve
clutch
engagement
pressure
cylinder
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
GB5798/59A
Inventor
George Kenneth Farmery
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.)
Wabco Automotive UK Ltd
Original Assignee
Clayton Dewandre Co 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 Clayton Dewandre Co Ltd filed Critical Clayton Dewandre Co Ltd
Priority to GB5798/59A priority Critical patent/GB875514A/en
Publication of GB875514A publication Critical patent/GB875514A/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
    • F16D25/12—Details not specific to one of the before-mentioned types
    • F16D25/14—Fluid pressure control
    • 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
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D48/04—Control by fluid pressure providing power assistance
    • 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
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D2048/0215—Control by fluid pressure for damping of pulsations within the fluid system
    • 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
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D2048/0221—Valves for clutch control systems; Details thereof
    • 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
    • F16D2300/00—Special features for couplings or clutches
    • F16D2300/22—Vibration damping

Landscapes

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

Abstract

875,514. Clutch control. CLAYTON DE-WANDRE CO. Ltd. Feb. 8, 1960 [Feb. 19, 1959], No. 5798/59. Class 80 (2). In a fluid pressure servomotor clutch control system for effecting rapid disengagement and controlled re-engagement of the clutch, the second stage of the re-engagement is effected more slowly by the closure of a restrictor valve when the pressure in the servo-cylinder falls to a predetermined value. In the arrangement shown, operation of a micro-switch 23 on the gear lever opens a solenoid-controlled valve 27 to admit compressed air from a supply pipe 28, through a pipe 11, past a non-return valve 12, into the cylinder 1 to act upon the piston 2 and disengage the clutch 5 through a lever 4. The pressure of the air acting upon a diaphragm 18 lifts a restrictor valve 17 off its seating 16 against a loading spring 19. When valve 27 is closed, air from cylinder 1 escapes directly through a by-pass 15 opened by valve 17 until the pressure falls to a value when spring 19 re-closes valve 17, when it can only escape through the restriction 22 in the valve, thus reducing the rate of clutch re-engagement.
GB5798/59A 1959-02-19 1959-02-19 Improvements in or relating to servo-assisted clutch-operating mechanisms Expired GB875514A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5798/59A GB875514A (en) 1959-02-19 1959-02-19 Improvements in or relating to servo-assisted clutch-operating mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5798/59A GB875514A (en) 1959-02-19 1959-02-19 Improvements in or relating to servo-assisted clutch-operating mechanisms

Publications (1)

Publication Number Publication Date
GB875514A true GB875514A (en) 1961-08-23

Family

ID=9802821

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5798/59A Expired GB875514A (en) 1959-02-19 1959-02-19 Improvements in or relating to servo-assisted clutch-operating mechanisms

Country Status (1)

Country Link
GB (1) GB875514A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2306368A1 (en) * 1975-04-03 1976-10-29 Zahnradfabrik Friedrichshafen Control valve for hydraulic plate clutch - incorporates automatic relief valve formed by sprung stepped piston within control piston
US6032776A (en) * 1997-09-12 2000-03-07 Aichi Kikai Kogyo Kabushiki Kaisha Automatic operating apparatus for a friction clutch
CN109555795A (en) * 2017-09-25 2019-04-02 郑州宇通客车股份有限公司 Clutch servo-cylinder and on-off control mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2306368A1 (en) * 1975-04-03 1976-10-29 Zahnradfabrik Friedrichshafen Control valve for hydraulic plate clutch - incorporates automatic relief valve formed by sprung stepped piston within control piston
US6032776A (en) * 1997-09-12 2000-03-07 Aichi Kikai Kogyo Kabushiki Kaisha Automatic operating apparatus for a friction clutch
CN109555795A (en) * 2017-09-25 2019-04-02 郑州宇通客车股份有限公司 Clutch servo-cylinder and on-off control mechanism
CN109555795B (en) * 2017-09-25 2024-04-26 宇通客车股份有限公司 Clutch booster cylinder and clutch operating mechanism

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