GB977531A - Epicyclic power transmission mechanisms - Google Patents

Epicyclic power transmission mechanisms

Info

Publication number
GB977531A
GB977531A GB1550060A GB1550060A GB977531A GB 977531 A GB977531 A GB 977531A GB 1550060 A GB1550060 A GB 1550060A GB 1550060 A GB1550060 A GB 1550060A GB 977531 A GB977531 A GB 977531A
Authority
GB
United Kingdom
Prior art keywords
elements
gear
clutch
brake
epicyclic
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
GB1550060A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1550060A priority Critical patent/GB977531A/en
Publication of GB977531A publication Critical patent/GB977531A/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
    • 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
    • F16H2716/00—Control devices for speed-change mechanisms of planetary gearings, with toothed wheels remaining engaged, e.g. also for devices to simplify the control or for synchronising devices combined with control devices
    • F16H2716/04—Control devices for speed-change mechanisms of planetary gearings, with toothed wheels remaining engaged, e.g. also for devices to simplify the control or for synchronising devices combined with control devices the control being hydraulic or pneumatic

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Retarders (AREA)

Abstract

977,531. Variable - speed epicyclic gear. A. C. WICKMAN. April 24, 1961 [May 3, 1960], No. 15500/60. Heading F2D. In a three-element epicyclic over/under drive gear the sun pinion 2 is engageable by axially-movable brake and clutch elements 10, 11, respectively, operated by one or more springs 17, located between the elements, and an overriding hydraulic actuator 24 for controlling the engagement and release of the second clutch element 16 carrying the annulus 6. In the overdrive unit shown spring 17 normally holds clutch elements 11, 16 in engagement to lock the gear for direct drive, but upon operation of piston 24 a lever 20 bearing against a fulcrum 21 on brake element 10 first disengages the clutch elements 11, 16 to release annulus 6, and then engages the brake elements 12, 13 to hold sun-wheel 2 fixed, so that the output shaft 8 is driven through the gear at increased speed. In a modification, Fig. 2 (not shown), the hydraulic actuator consists of differential pistons, the larger of which acts directly on brake element 10 and the smaller on clutch element 11. Underdrive arrangements with shafts 4, 8 reversed, Figs. 3 and 4 (not shown), are also described.
GB1550060A 1960-05-03 1960-05-03 Epicyclic power transmission mechanisms Expired GB977531A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1550060A GB977531A (en) 1960-05-03 1960-05-03 Epicyclic power transmission mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1550060A GB977531A (en) 1960-05-03 1960-05-03 Epicyclic power transmission mechanisms

Publications (1)

Publication Number Publication Date
GB977531A true GB977531A (en) 1964-12-09

Family

ID=10060234

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1550060A Expired GB977531A (en) 1960-05-03 1960-05-03 Epicyclic power transmission mechanisms

Country Status (1)

Country Link
GB (1) GB977531A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5735767A (en) * 1996-10-21 1998-04-07 New Venture Gear, Inc. Add-on two-speed compounder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5735767A (en) * 1996-10-21 1998-04-07 New Venture Gear, Inc. Add-on two-speed compounder
US5975263A (en) * 1996-10-21 1999-11-02 New Venture Gear, Inc. Synchronizer clutch

Similar Documents

Publication Publication Date Title
GB959763A (en) Variable-speed transmission
GB931884A (en) Planetary drive transmission device
GB957145A (en) Improvements in variable-speed transmissions
GB1045844A (en) Variable speed transmission
GB977531A (en) Epicyclic power transmission mechanisms
GB567340A (en) Improvements relating to epi-cyclic change-speed gearing
GB884562A (en) Railway locomotive transmissions
GB936586A (en) Improvements in and relating to epicyclic change speed gearing
US3144788A (en) Variable speed power transmission mechanism for vehicles
GB700424A (en) Epicyclic power transmission mechanisms
GB1273110A (en) Multiple speed ratio power transmission mechanism
GB908911A (en) Variable speed power transmission mechanisms for vehicles
GB691705A (en) Epicyclic power transmission mechanisms
GB652027A (en) Improved variable-speed power transmission mechanism
GB893670A (en) Improvements relating to automatic variable speed mechanisms
GB739126A (en) Epicyclic power transmission mechanisms
GB911448A (en) Improvements in and relating to reversing gearing
GB886326A (en) Improved multiple speed power transmission mechanism
GB910653A (en) Improvements relating to variable ratio transmission mechanisms
GB889991A (en) Improvements in or relating to a gradual mechanical automatic speed variator
GB813872A (en) Improvements in change speed gearing
GB862409A (en) Improved variable-speed power transmission mechanism for motor vehicles
GB932155A (en) Improvements in or relating to drive transmissions
GB918085A (en) Improvements in and relating to friction wheel planetary gears
GB816560A (en) Automatic speed changing transmission for rotary motion