GB939428A - Improvements in or relating to fluid pressure servo-motors - Google Patents

Improvements in or relating to fluid pressure servo-motors

Info

Publication number
GB939428A
GB939428A GB4099959A GB4099959A GB939428A GB 939428 A GB939428 A GB 939428A GB 4099959 A GB4099959 A GB 4099959A GB 4099959 A GB4099959 A GB 4099959A GB 939428 A GB939428 A GB 939428A
Authority
GB
United Kingdom
Prior art keywords
chamber
diaphragm
valve
port
assembly
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
GB4099959A
Inventor
Albert Norman Bland
David Aubrey Davies
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.)
Automotive Products PLC
Original Assignee
Automotive Products PLC
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 Automotive Products PLC filed Critical Automotive Products PLC
Priority to GB4099959A priority Critical patent/GB939428A/en
Publication of GB939428A publication Critical patent/GB939428A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
    • B60K23/02—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for main transmission clutches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • F15B9/12—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor in which both the controlling element and the servomotor control the same member influencing a fluid passage and are connected to that member by means of a differential gearing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

939,428. Controlling clutches. AUTOMOTIVE PRODUCTS CO. Ltd. Nov. 22, 1960 [Dec. 2, 1959], No. 40999/59. Class 80 (2). [Also in Group XXIX] A servomotor comprises a flexible diaphragm 25, or a piston, spring-urged towards the right and connected by a rod 14 with an element, such as a clutch, to be operated, an assembly of plates 45, 46 operatively connected by a rod 19 and block 63 with an input lever 18 connected with an operator's clutch pedal, valve heads 53, 54 carried by a stem 52 and operable by movement of the assembly 45, 46, and a one-way valve 57 with a passage 62 therethrough for controlling the rate of movement of the diaphragm 25 in one direction. As shown, the diaphragm is permanently subjected to atmospheric pressure in a chamber 26, whilst a chamber 27 may be connected through the valve assembly with atmosphere or a vacuum reservoir, but the arrangement may alternatively be one in which both sides of the diaphragm are normally connected to suction and one side is connected to atmosphere to provide the operating pressure difference, or one in which operation is effected by super-atmospheric pressure on one side of the diaphragm. With the parts in the positions shown the chamber 27 is connected to atmosphere through passages 44, 43, a chamber 34, the passage 62 and a port 48 connecting with a chamber 35 which has an atmospheric connection (not shown) and is separated from the chamber 34 by a flexible diaphragm 33. Leftward movement of the assembly 45, 46 closes the port 48 and causes the valve head 54 to be lifted from a vacuum port 42 so that the chamber 27 is evacuated to cause leftward movement of the diaphragm and disengagement of the clutch. On release of the clutch pedal springs 51, 55 cause closure of the port 42 and opening of the port 48 so that atmospheric air passes to the chamber 27 and lifts the valve 57 against a spring 59 until the pressure difference across the valve 57 falls to the extent that it is overcome by the spring 59 when the valve closes and further flow of air into the chamber 27 is restricted by the passage 62.
GB4099959A 1959-12-02 1959-12-02 Improvements in or relating to fluid pressure servo-motors Expired GB939428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4099959A GB939428A (en) 1959-12-02 1959-12-02 Improvements in or relating to fluid pressure servo-motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4099959A GB939428A (en) 1959-12-02 1959-12-02 Improvements in or relating to fluid pressure servo-motors

Publications (1)

Publication Number Publication Date
GB939428A true GB939428A (en) 1963-10-16

Family

ID=10417627

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4099959A Expired GB939428A (en) 1959-12-02 1959-12-02 Improvements in or relating to fluid pressure servo-motors

Country Status (1)

Country Link
GB (1) GB939428A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3011777A1 (en) * 1980-03-27 1981-10-01 Volkswagenwerk Ag, 3180 Wolfsburg Passenger vehicle towing arrangement - has servo-assisted pedal-operated coupling release
GB2169981A (en) * 1985-01-18 1986-07-23 Nippon Air Brake Co Pull-type booster

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3011777A1 (en) * 1980-03-27 1981-10-01 Volkswagenwerk Ag, 3180 Wolfsburg Passenger vehicle towing arrangement - has servo-assisted pedal-operated coupling release
GB2169981A (en) * 1985-01-18 1986-07-23 Nippon Air Brake Co Pull-type booster
US4854220A (en) * 1985-01-18 1989-08-08 Nippon Air Brake Co., Ltd. Pull-type booster

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