FR1289325A - Continuously variable gear ratio transmission mechanism - Google Patents

Continuously variable gear ratio transmission mechanism

Info

Publication number
FR1289325A
FR1289325A FR862233A FR862233A FR1289325A FR 1289325 A FR1289325 A FR 1289325A FR 862233 A FR862233 A FR 862233A FR 862233 A FR862233 A FR 862233A FR 1289325 A FR1289325 A FR 1289325A
Authority
FR
France
Prior art keywords
transmission mechanism
gear ratio
continuously variable
variable gear
ratio transmission
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
FR862233A
Other languages
French (fr)
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.)
National Research Development Corp UK
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 FR1289325A publication Critical patent/FR1289325A/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
    • 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)
FR862233A 1960-05-18 1961-05-18 Continuously variable gear ratio transmission mechanism Expired FR1289325A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1760660A GB979062A (en) 1960-05-18 1960-05-18 Improvements in or relating to a continuously variable ratio transmission

Publications (1)

Publication Number Publication Date
FR1289325A true FR1289325A (en) 1962-03-30

Family

ID=10098093

Family Applications (1)

Application Number Title Priority Date Filing Date
FR862233A Expired FR1289325A (en) 1960-05-18 1961-05-18 Continuously variable gear ratio transmission mechanism

Country Status (2)

Country Link
FR (1) FR1289325A (en)
GB (1) GB979062A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1450777B1 (en) * 1963-05-07 1970-04-02 Nat Res Dev Switching device for swivel roller gear with pressure receiving and control element
DE1450783B1 (en) * 1964-01-01 1970-04-02 Nat Res Dev Switching device with damping for mechanically controlled swivel roller gears
DE1650790B1 (en) * 1966-09-12 1971-06-09 Nat Res Dev SWITCHING UNIT FOR SWIVEL ROLLER GEAR WITH DAMPING

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1209322A (en) * 1967-06-30 1970-10-21 Nat Res Dev Infinitely variable transmission system
US4297918A (en) * 1978-06-23 1981-11-03 National Research Development Corporation Control systems for steplessly-variable ratio transmissions
GB2225395A (en) * 1988-10-27 1990-05-30 Perry Forbes G D Toroidal race rolling traction transmission units with angled ball race
US5423727A (en) * 1988-11-21 1995-06-13 Torotrak (Development) Limited Transmission of the toroidal-race rolling-traction type
GB9027795D0 (en) * 1990-12-21 1991-02-13 Fellows Thomas G Improvements in or relating to transmissions of toroidal-race rolling-traction type
GB2229780A (en) * 1989-03-28 1990-10-03 Perry Forbes G D Toroidal race rolling traction transmission with resilient damping ring
US6030310A (en) * 1996-04-19 2000-02-29 Torotrak (Development) Limited Variator control system
GB2312257A (en) * 1996-04-19 1997-10-22 Torotrak Dev Ltd Toroidal race variator control system varies end loading according to net pres sure
GB0201628D0 (en) 2002-01-24 2002-03-13 Torotrak Dev Ltd Improvements relating to continuously variable transmissions
US11078812B2 (en) 2015-07-13 2021-08-03 Borgwarner Inc. Continuously variable friction drive phaser

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1450777B1 (en) * 1963-05-07 1970-04-02 Nat Res Dev Switching device for swivel roller gear with pressure receiving and control element
DE1450783B1 (en) * 1964-01-01 1970-04-02 Nat Res Dev Switching device with damping for mechanically controlled swivel roller gears
DE1650790B1 (en) * 1966-09-12 1971-06-09 Nat Res Dev SWITCHING UNIT FOR SWIVEL ROLLER GEAR WITH DAMPING

Also Published As

Publication number Publication date
GB979062A (en) 1965-01-01

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