GB1216057A - Overdrive gear system - Google Patents

Overdrive gear system

Info

Publication number
GB1216057A
GB1216057A GB4721969A GB4721969A GB1216057A GB 1216057 A GB1216057 A GB 1216057A GB 4721969 A GB4721969 A GB 4721969A GB 4721969 A GB4721969 A GB 4721969A GB 1216057 A GB1216057 A GB 1216057A
Authority
GB
United Kingdom
Prior art keywords
clutch
cone
drive
gear
sun
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
GB4721969A
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.)
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Motor Co Ltd
Ford Motor Co
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 Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Motor Co Ltd
Publication of GB1216057A publication Critical patent/GB1216057A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

1,216,057. Change-speed gear; friction clutches. FORD MOTOR CO. Ltd. 25 Sept., 1969 [4 Nov., 1968], No. 47219/69. Headings F2C and F2D. In a motor vehicle three-element epicyclic overdrive gear unit comprising intermeshing planets 30, 28 rotatably mounted on a carrier 32 fast with an output shaft 34 and respectively meshing a ring-gear 26, fast on an input shaft 10, and a sun 24 formed on a freelymounted axially movable clutch-brake member 44, in which the clutch-brake member 44 is biased by a spring 72 to clutch the sun 24 via a cone clutch 38 to the ring gear 26 for direct lock-up drive, normal torque delivery in direct drive being transmitted through a oneway clutch 36 arranged between the input ring 26 and output planet carrier 32, and oppositely moved by a selectively controlled fluid pressureoperated annular piston 56 to disengage the cone clutch 38 and brake the sun 24 via a multidisc brake 50, 52 to a fixed casing 14, 16 for overdrive at the planetary ratio, the one-way clutch overrunning, cone clutch 38 engagement during vehicle overrun or reverse in direct drive ratio is variably augmented by the torque responsive thrust of helical teeth of the gearing. During direct lock-up forward drive, the clutchbrake member 44 is loaded by the spring 72 to engage its clutch cone surface 42 with the ring gear 26 to lock the sun 24 thereto but plays no part in the forward torque transmission which is directly through the one-way clutch 36, however, during reverse torque, e.g. overrun or reverse drive, when the one-way clutch 21 becomes ineffective, the cone clutch 38 takes the drive and in addition to the spring thrust 72 the cone clutch engagement is increased by the variable load of the torque responsive helical gear thrust which now acts in the opposite direction to that for normal drive. In Figs. 2-A, 2-B (not shown), the cone clutch 38 additionally includes intermediate cone friction plates (74, 76) enabling a smaller helix angle to be used in the gearing.
GB4721969A 1968-11-04 1969-09-25 Overdrive gear system Expired GB1216057A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77296268A 1968-11-04 1968-11-04

Publications (1)

Publication Number Publication Date
GB1216057A true GB1216057A (en) 1970-12-16

Family

ID=25096741

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4721969A Expired GB1216057A (en) 1968-11-04 1969-09-25 Overdrive gear system

Country Status (2)

Country Link
DE (1) DE1947239A1 (en)
GB (1) GB1216057A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2221732A (en) * 1988-08-11 1990-02-14 Aisin Aw Co Carrier device for planetary gearing in an automatic transmission
CN111043257A (en) * 2019-12-04 2020-04-21 西南大学 Self-adaptive automatic speed change assembly adopting multi-piece type large-torque friction clutch

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU169541B (en) * 1973-03-21 1976-12-28
US10982723B1 (en) * 2019-11-18 2021-04-20 GM Global Technology Operations LLC Friction clutch assemblies with low-drag disconnect clutch pack having cone clutch synchronizer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2221732A (en) * 1988-08-11 1990-02-14 Aisin Aw Co Carrier device for planetary gearing in an automatic transmission
US5019025A (en) * 1988-08-11 1991-05-28 Aisin Aw Co., Ltd. Carrier device in an automatic transmission
GB2221732B (en) * 1988-08-11 1993-01-13 Aisin Aw Co Automatic transmission incorporating a carrier
CN111043257A (en) * 2019-12-04 2020-04-21 西南大学 Self-adaptive automatic speed change assembly adopting multi-piece type large-torque friction clutch

Also Published As

Publication number Publication date
DE1947239A1 (en) 1970-05-27

Similar Documents

Publication Publication Date Title
US4237749A (en) Multi-speed power transmission
FR2056270A5 (en)
GB1305180A (en)
GB1180634A (en) A Split Torque Type Automatic Speed Change Device
GB1142052A (en) Change-speed transmission
GB1087680A (en) Variable-ratio power transmission mechanisms
GB1347931A (en) Infinitely variable overdrive transmission mechnism
GB931884A (en) Planetary drive transmission device
GB1156317A (en) Improvements in or relating to an Epicyclic Change-Speed Gearing
GB1334830A (en) Multiple ratio power transmission mechanism with an infinitely variable overdrive range
GB1021130A (en) Infinitely variable transmission
GB1157049A (en) An Automatic Speed Change Device for Vehicles
GB1383897A (en) Variable-ratio power transmission mechanisms
GB1216057A (en) Overdrive gear system
US3640153A (en) Four-speed ratio power transmission mechanism having simple planetary gear units
GB964968A (en) New or improved epicyclic gearing
GB1045844A (en) Variable speed transmission
US3150541A (en) Rear mounted transmission
GB952371A (en) Epicyclic change speed power transmission mechanisms
GB1084603A (en) Improvements in or relating to variable ratio drive units
US3000235A (en) Planetary transmission
US2957373A (en) Dual coupling shift transmission
GB885942A (en) A self-shifting change speed gear
GB1180599A (en) Planetary Power Transmission
US3039325A (en) Split torque transmission