GB1235566A - Improvements in or relating to control means for an auxiliary change-speed gearing - Google Patents

Improvements in or relating to control means for an auxiliary change-speed gearing

Info

Publication number
GB1235566A
GB1235566A GB2910368A GB2910368A GB1235566A GB 1235566 A GB1235566 A GB 1235566A GB 2910368 A GB2910368 A GB 2910368A GB 2910368 A GB2910368 A GB 2910368A GB 1235566 A GB1235566 A GB 1235566A
Authority
GB
United Kingdom
Prior art keywords
vacuum
change
valve
servo
auxiliary gear
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
GB2910368A
Inventor
Randle Leslie Abbott
Alan Salisbury Lamburn
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.)
GKN Birfield Transmissions Ltd
GKN Automotive Ltd
Original Assignee
GKN Transmissions Ltd
GKN Birfield Transmissions 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 GKN Transmissions Ltd, GKN Birfield Transmissions Ltd filed Critical GKN Transmissions Ltd
Priority to GB2910368A priority Critical patent/GB1235566A/en
Priority to ES368503A priority patent/ES368503A1/en
Priority to FR6920287A priority patent/FR2011207A1/fr
Priority to DE19691930985 priority patent/DE1930985A1/en
Publication of GB1235566A publication Critical patent/GB1235566A/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
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

1,235,566. Change-speed control. G.K.N. BIRFIELD TRANSMISSIONS Ltd. 16 June, 1969 [19 June, 1968], No. 29103/68. Heading F2D. A motor-vehicle transmission having the usual C.S.G. 11 connected via a clutch 12 to an I.C. engine 10 includes a two-speed auxiliary gear 13 manually pre-selected by a steering- column mounted lever and rod 34, 35 connected to a change-over valve 29 for controlling a vacuum-servo 17 operably connected via linkwork 18-20 to the auxiliary gear 13, the vacuum-servo 17 being connected to engine manifold depression 23 for establishment of one or other pre-selected ratio of the auxiliary gear on disengaging movement, i.e. depression of the clutch pedal 21. The vacuum-servo 17 is connected via ducts 30, 31 and the change-over valve 29 to a valve 25 the clutch pedal camoperated plunger 26 of which opens the valve 25, on clutch pedal depression, to connect engine manifold depression to the change-over valve 29, which valve has shift plungers 32, 33, controlled by a rockable arm 37, manually pre-selected by the lever and rod 35, 34, pivotable between two positions, to connect either duet 31 or 30 to vacuum, the other duct being automatically vented to atmosphere, for selection of one or other auxiliary gear ratio, the manual preselecting lever 35 being spring-biased at 42 back to a central position. The appropriate auxiliary ratio setting is indicated by panels 40, 41 illuminated via switches 39, 140 operated by the vacuum-servo link 20.
GB2910368A 1968-06-19 1968-06-19 Improvements in or relating to control means for an auxiliary change-speed gearing Expired GB1235566A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB2910368A GB1235566A (en) 1968-06-19 1968-06-19 Improvements in or relating to control means for an auxiliary change-speed gearing
ES368503A ES368503A1 (en) 1968-06-19 1969-06-18 Improvements in or relating to control means for an auxiliary change-speed gearing
FR6920287A FR2011207A1 (en) 1968-06-19 1969-06-18
DE19691930985 DE1930985A1 (en) 1968-06-19 1969-06-19 Device for controlling the movement of the switching element of an auxiliary gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2910368A GB1235566A (en) 1968-06-19 1968-06-19 Improvements in or relating to control means for an auxiliary change-speed gearing

Publications (1)

Publication Number Publication Date
GB1235566A true GB1235566A (en) 1971-06-16

Family

ID=10286209

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2910368A Expired GB1235566A (en) 1968-06-19 1968-06-19 Improvements in or relating to control means for an auxiliary change-speed gearing

Country Status (4)

Country Link
DE (1) DE1930985A1 (en)
ES (1) ES368503A1 (en)
FR (1) FR2011207A1 (en)
GB (1) GB1235566A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1067439B (en) * 1976-07-30 1985-03-16 Magneti Marelli Spa PNEUMATIC GROUP TO FEED THE COMMAND ORGANS OF THE GEARS OF THE GEARBOXES CHANGES OF MOTOR VEHICLES AND SIMILAR
FR2414414A1 (en) * 1978-01-12 1979-08-10 British Leyland Uk Ltd VEHICLE TRANSMISSION SYSTEM
EP0037197A3 (en) * 1980-03-25 1982-01-20 DANA CORPORATION (a Virginia corporation) Splitter control for a transmission

Also Published As

Publication number Publication date
FR2011207A1 (en) 1970-02-27
DE1930985A1 (en) 1970-07-02
ES368503A1 (en) 1971-05-01

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