GB1239981A - Improvements in or relating to valves - Google Patents

Improvements in or relating to valves

Info

Publication number
GB1239981A
GB1239981A GB4414668A GB4414668A GB1239981A GB 1239981 A GB1239981 A GB 1239981A GB 4414668 A GB4414668 A GB 4414668A GB 4414668 A GB4414668 A GB 4414668A GB 1239981 A GB1239981 A GB 1239981A
Authority
GB
United Kingdom
Prior art keywords
valve
valves
composite
gear
valve block
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
GB4414668A
Inventor
Wilbur Mills Page
Ralph Coupland
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 GB4414668A priority Critical patent/GB1239981A/en
Publication of GB1239981A publication Critical patent/GB1239981A/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
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0262—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic
    • F16H61/0276—Elements specially adapted for hydraulic control units, e.g. valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

1,239,981. Change-speed control. CLAYTON DEWANDRE CO. Ltd. 27 Aug., 1969 [17 Sept., 1968], No. 44146/68. Heading F2D. An inhibition valve block of an electropneumatically or electro-hydraulically operated change-speed control of a dix forward speed and reverse C.S.G. (not shown) of the type disclosed in Specification 1,177,965 having electrical means for sensing the rotational speeds of the gears to be engaged in the gear-box and means for preventing engagement of said gears until synchronism is attained, comprises a valve body 1 housing 1st and 2nd composite valves each having triple pistons 11, 12, 13 and respectively controlling engagement of 2nd, 4th and 6th and 1st, 3rd, 5th and reverse and a third centre valve having a stepped piston 31, 32 interconnected to jointly co-operate with the 2nd composite valve and a pneumatic actuator (not shown) during alternate gear selections, the composite inhibition valves being under the control of the speed synchronous responsive solenoid valves (23) (not shown) of Specification 1,239,982 and the emergency valve (1) (not shown) of Specification 1,239,982 used in the event of electrical failure of the solenoid valves (23). The valve block operates in the manner described for the similar valve block in the gear control system of Specification 1,177,965. Reference has been directed by the Comptroller to Specification 1,177,965.
GB4414668A 1968-09-17 1968-09-17 Improvements in or relating to valves Expired GB1239981A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4414668A GB1239981A (en) 1968-09-17 1968-09-17 Improvements in or relating to valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4414668A GB1239981A (en) 1968-09-17 1968-09-17 Improvements in or relating to valves

Publications (1)

Publication Number Publication Date
GB1239981A true GB1239981A (en) 1971-07-21

Family

ID=10432002

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4414668A Expired GB1239981A (en) 1968-09-17 1968-09-17 Improvements in or relating to valves

Country Status (1)

Country Link
GB (1) GB1239981A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110259747A (en) * 2019-06-20 2019-09-20 苏州跃翔智能科技有限公司 A kind of multilevel control valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110259747A (en) * 2019-06-20 2019-09-20 苏州跃翔智能科技有限公司 A kind of multilevel control valve
CN110259747B (en) * 2019-06-20 2024-02-13 苏州跃翔智能科技有限公司 Multistage control valve

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