GB2368618B - Infinitely variable transmission with flexible drive member - Google Patents

Infinitely variable transmission with flexible drive member

Info

Publication number
GB2368618B
GB2368618B GB0130266A GB0130266A GB2368618B GB 2368618 B GB2368618 B GB 2368618B GB 0130266 A GB0130266 A GB 0130266A GB 0130266 A GB0130266 A GB 0130266A GB 2368618 B GB2368618 B GB 2368618B
Authority
GB
United Kingdom
Prior art keywords
drive member
variable transmission
flexible drive
infinitely variable
infinitely
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 - Fee Related
Application number
GB0130266A
Other versions
GB0130266D0 (en
GB2368618A (en
Inventor
Christopher John Greenwood
Michael Hough
Daniel Malcolm Watt
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.)
Torotrak Development Ltd
Torotrak PLC
Original Assignee
Torotrak Development Ltd
Torotrak PLC
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 Torotrak Development Ltd, Torotrak PLC filed Critical Torotrak Development Ltd
Publication of GB0130266D0 publication Critical patent/GB0130266D0/en
Publication of GB2368618A publication Critical patent/GB2368618A/en
Application granted granted Critical
Publication of GB2368618B publication Critical patent/GB2368618B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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)
  • Friction Gearing (AREA)
GB0130266A 1999-06-18 2000-06-16 Infinitely variable transmission with flexible drive member Expired - Fee Related GB2368618B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9914251.5A GB9914251D0 (en) 1999-06-18 1999-06-18 Drive mechanism for infinitely variable transmission
PCT/GB2000/002369 WO2000079150A1 (en) 1999-06-18 2000-06-16 Drive mechanism for infinitely variable transmission

Publications (3)

Publication Number Publication Date
GB0130266D0 GB0130266D0 (en) 2002-02-06
GB2368618A GB2368618A (en) 2002-05-08
GB2368618B true GB2368618B (en) 2003-04-02

Family

ID=10855605

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9914251.5A Ceased GB9914251D0 (en) 1999-06-18 1999-06-18 Drive mechanism for infinitely variable transmission
GB0130266A Expired - Fee Related GB2368618B (en) 1999-06-18 2000-06-16 Infinitely variable transmission with flexible drive member

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9914251.5A Ceased GB9914251D0 (en) 1999-06-18 1999-06-18 Drive mechanism for infinitely variable transmission

Country Status (3)

Country Link
AU (1) AU5548200A (en)
GB (2) GB9914251D0 (en)
WO (1) WO2000079150A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105021396B (en) 2009-12-16 2019-07-05 艾里逊变速箱公司 Converter fault detection system
CA2784348A1 (en) 2009-12-16 2011-06-23 Allison Transmission, Inc. System and method for controlling endload force of a variator
US8578802B2 (en) 2009-12-16 2013-11-12 Allison Transmission, Inc. System and method for multiplexing gear engagement control and providing fault protection in a toroidal traction drive automatic transmission
US8401752B2 (en) 2009-12-16 2013-03-19 Allison Transmission, Inc. Fail-to-neutral system and method for a toroidal traction drive automatic transmission
US8744697B2 (en) 2009-12-16 2014-06-03 Allison Transmission, Inc. Variator lockout valve system
CA2784373C (en) 2009-12-16 2017-11-07 Allison Transmission, Inc. Fast valve actuation system for an automatic transmission
US9228650B2 (en) 2010-08-16 2016-01-05 Allison Transmission, Inc. Gear scheme for infinitely variable transmission
CN103597255B (en) 2010-12-15 2015-12-16 艾里逊变速箱公司 For the gear switching valve scheme of anchor ring traction drive speed changer
AU2011343889B2 (en) 2010-12-15 2016-11-03 Allison Transmission, Inc. Dual pump regulator system for a motor vehicle transmission
WO2012082871A1 (en) 2010-12-15 2012-06-21 Long Charles F Variator multiplex valve scheme for a torroidal traction drive transmission
US11078812B2 (en) 2015-07-13 2021-08-03 Borgwarner Inc. Continuously variable friction drive phaser

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB431199A (en) * 1933-12-28 1935-06-28 John Leslie Cloudsley Improvements relating to variable speed power transmission mechanism
US2883839A (en) * 1957-05-24 1959-04-28 Bendix Aviat Corp Flexible drive shaft
WO1999034133A1 (en) * 1997-12-24 1999-07-08 Torotrak (Development) Ltd Drive mechanism for infinitely-variable-transmission

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB431199A (en) * 1933-12-28 1935-06-28 John Leslie Cloudsley Improvements relating to variable speed power transmission mechanism
US2883839A (en) * 1957-05-24 1959-04-28 Bendix Aviat Corp Flexible drive shaft
WO1999034133A1 (en) * 1997-12-24 1999-07-08 Torotrak (Development) Ltd Drive mechanism for infinitely-variable-transmission

Also Published As

Publication number Publication date
GB0130266D0 (en) 2002-02-06
AU5548200A (en) 2001-01-09
GB2368618A (en) 2002-05-08
GB9914251D0 (en) 1999-08-18
WO2000079150A1 (en) 2000-12-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20110616