DE3664155D1 - A rolling traction automotive transmission - Google Patents

A rolling traction automotive transmission

Info

Publication number
DE3664155D1
DE3664155D1 DE8686300559T DE3664155T DE3664155D1 DE 3664155 D1 DE3664155 D1 DE 3664155D1 DE 8686300559 T DE8686300559 T DE 8686300559T DE 3664155 T DE3664155 T DE 3664155T DE 3664155 D1 DE3664155 D1 DE 3664155D1
Authority
DE
Germany
Prior art keywords
automotive transmission
rolling traction
traction
rolling
automotive
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
DE8686300559T
Other languages
English (en)
Inventor
Forbes George De Brie Perry
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.)
BTG International Ltd
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Application granted granted Critical
Publication of DE3664155D1 publication Critical patent/DE3664155D1/de
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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
    • F16J15/48—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings influenced by the pressure within the member to be sealed
    • 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
    • F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
    • F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
    • F16H15/04—Gearings providing a continuous range of gear ratios
    • F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
    • F16H15/32—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line
    • F16H15/36—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface
    • F16H15/38—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Fluid Mechanics (AREA)
  • Friction Gearing (AREA)
DE8686300559T 1985-01-30 1986-01-28 A rolling traction automotive transmission Expired DE3664155D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8502318A GB2170284B (en) 1985-01-30 1985-01-30 Improvements in or relating to automotive transmissions of the rolling traction type

Publications (1)

Publication Number Publication Date
DE3664155D1 true DE3664155D1 (en) 1989-08-03

Family

ID=10573658

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686300559T Expired DE3664155D1 (en) 1985-01-30 1986-01-28 A rolling traction automotive transmission

Country Status (5)

Country Link
US (1) US4713978A (de)
EP (1) EP0190032B1 (de)
JP (1) JPS61184263A (de)
DE (1) DE3664155D1 (de)
GB (1) GB2170284B (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9024987D0 (en) * 1990-11-16 1991-01-02 Greenwood Christopher J Improvements in or relating to variators for transmissions of the toroidal-race rolling-traction type
JP4196486B2 (ja) * 1999-06-29 2008-12-17 日本精工株式会社 トロイダル形無段変速装置
KR100428290B1 (ko) * 2000-11-15 2004-04-30 현대자동차주식회사 차량의 마찰 가변 변속장치
WO2002079675A1 (en) * 2001-03-29 2002-10-10 Torotrak (Development) Ltd. Hydraulic control circuit for a variator
DE10352174A1 (de) * 2003-11-05 2005-06-09 Daimlerchrysler Ag Toroidgetriebe mit einer hydraulischen Anpressvorrichtung
EP2524212B1 (de) 2010-01-11 2022-11-09 Waters Technologies Corporation Nadeldichtungskraftsensor
JP2012172685A (ja) * 2011-02-17 2012-09-10 Nsk Ltd トロイダル型無段変速機
JP6179332B2 (ja) * 2013-10-10 2017-08-16 日本精工株式会社 トロイダル型無段変速機

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446409A (en) * 1945-01-08 1948-08-03 Allan Chilton Torque responsive transmission means
US2979970A (en) * 1957-12-09 1961-04-18 William S Rouverol Variable speed transmission
US3173312A (en) * 1962-12-31 1965-03-16 Ford Motor Co Variable speed drive mechanism
US3163050A (en) * 1963-06-19 1964-12-29 Excelermatic Toroidal transmission bearing means
GB1146321A (en) * 1965-03-09 1969-03-26 English Electric Co Ltd Variable ratio friction gears
GB1296827A (de) * 1968-12-06 1972-11-22
DE2554037C3 (de) * 1975-12-02 1981-01-15 Dieter Dipl.-Ing. 7432 Urach Weigle Dichtungsanordnung für die Abdichtung bei hohen Drücken
GB1583958A (en) * 1976-08-14 1981-02-04 Lucas Industries Ltd Axial loading device
GB2018894B (en) * 1978-04-11 1983-01-06 Brie Perry F G De Fluid pressure operated actuator
US4272999A (en) * 1978-04-11 1981-06-16 National Research Development Corporation Fluid pressure operated actuator
US4297918A (en) * 1978-06-23 1981-11-03 National Research Development Corporation Control systems for steplessly-variable ratio transmissions
GB2023753B (en) * 1978-06-23 1982-12-22 Brie Perry F G De Control systems for steplessly-varibale ratio transmissions
US4314485A (en) * 1978-11-16 1982-02-09 Cam Gears Limited Speed control systems
JPS5718058A (en) * 1980-07-08 1982-01-29 Matsushita Electric Ind Co Ltd Rotating controller
GB2122289B (en) * 1982-06-23 1985-11-27 Nat Res Dev Generating the end load for transmission units of the toroidal race rolling friction type
US4484487A (en) * 1983-01-03 1984-11-27 Excelermatic Inc. Hydraulically controlled infinitely variable traction roller transmission
US4576055A (en) * 1984-08-15 1986-03-18 Excelermatic, Inc. Hydraulically controlled infinitely variable traction roller transmission

Also Published As

Publication number Publication date
GB2170284B (en) 1989-07-05
GB8502318D0 (en) 1985-02-27
GB2170284A (en) 1986-07-30
US4713978A (en) 1987-12-22
EP0190032B1 (de) 1989-06-28
JPS61184263A (ja) 1986-08-16
EP0190032A1 (de) 1986-08-06

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: BRITISH TECHNOLOGY GROUP LTD., LONDON, GB

8328 Change in the person/name/address of the agent

Free format text: GALLO, W., DIPL.-ING. (FH), 86152 AUGSBURG SCHROETER, H., DIPL.-PHYS. FLEUCHAUS, L., DIPL.-ING. LEHMANN, K., DIPL.-ING., 81479 MUENCHEN WEHSER, W., DIPL.-ING., PAT.-ANWAELTE, 30161 HANNOVER

8339 Ceased/non-payment of the annual fee