IT961679B - Ingranaggio di trasmissione a frizione con rapporto variabile - Google Patents

Ingranaggio di trasmissione a frizione con rapporto variabile

Info

Publication number
IT961679B
IT961679B IT51733/72A IT5173372A IT961679B IT 961679 B IT961679 B IT 961679B IT 51733/72 A IT51733/72 A IT 51733/72A IT 5173372 A IT5173372 A IT 5173372A IT 961679 B IT961679 B IT 961679B
Authority
IT
Italy
Prior art keywords
clutch
drive gear
variable ratio
variable
ratio
Prior art date
Application number
IT51733/72A
Other languages
English (en)
Original Assignee
Rotax Ltd
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 Rotax Ltd filed Critical Rotax Ltd
Application granted granted Critical
Publication of IT961679B publication Critical patent/IT961679B/it

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
    • 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
    • F16H61/66—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 specially adapted for continuously variable gearings
    • F16H61/664—Friction gearings
    • F16H61/6646—Friction gearings controlling shifting exclusively as a function of speed
    • 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
    • F16H2015/383—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 with two or more sets of toroid gearings arranged in parallel

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Friction Gearing (AREA)
  • Retarders (AREA)
  • Control Of Transmission Device (AREA)
IT51733/72A 1971-07-27 1972-07-25 Ingranaggio di trasmissione a frizione con rapporto variabile IT961679B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3532271A GB1392450A (en) 1971-07-27 1971-07-27 Variable-ratio friction drive gears

Publications (1)

Publication Number Publication Date
IT961679B true IT961679B (it) 1973-12-10

Family

ID=10376412

Family Applications (1)

Application Number Title Priority Date Filing Date
IT51733/72A IT961679B (it) 1971-07-27 1972-07-25 Ingranaggio di trasmissione a frizione con rapporto variabile

Country Status (8)

Country Link
US (1) US3826147A (it)
JP (1) JPS5718058B1 (it)
DE (1) DE2236257C3 (it)
FR (1) FR2147721A5 (it)
GB (1) GB1392450A (it)
IT (1) IT961679B (it)
NL (1) NL164647C (it)
SE (1) SE370995B (it)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4086820A (en) * 1976-06-25 1978-05-02 Excelermatic, Inc. Infinitely variable traction roller transmission
GB1600971A (en) * 1976-07-31 1981-10-21 Lucas Industries Ltd Variable speed transmission systems
GB1600973A (en) * 1976-08-14 1981-10-21 Lucas Industries Ltd Variable speed transmission systems
GB1583958A (en) * 1976-08-14 1981-02-04 Lucas Industries Ltd Axial loading device
GB1600972A (en) * 1976-08-14 1981-10-21 Lucas Industries Ltd Variable speed transmission systems
JPS5517784A (en) * 1978-05-31 1980-02-07 British Leyland Cars Ltd Rolling friction type transmission device having continuous variable ratio
US4297918A (en) * 1978-06-23 1981-11-03 National Research Development Corporation Control systems for steplessly-variable ratio transmissions
US4314485A (en) * 1978-11-16 1982-02-09 Cam Gears Limited Speed control systems
US4355547A (en) * 1979-05-30 1982-10-26 Bl Cars Limited Continuously variable ratio transmission
US4466312A (en) * 1980-05-27 1984-08-21 Aisin Seiki Kabushiki Kaisha System for controlling transmission ratio of transmission for automotive vehicles
GB2108600A (en) * 1981-10-24 1983-05-18 Leyland Vehicles Continuously-variable-ratio transmisson
JPS59183950U (ja) * 1983-05-24 1984-12-07 セイレイ工業株式会社 バツクホ−の旋回部におけるスイベルジヨイントのシ−ル機構
GB2215413A (en) * 1988-02-23 1989-09-20 Electro Hydraulic Technology L Gearbox control unit
US6030310A (en) * 1996-04-19 2000-02-29 Torotrak (Development) Limited Variator control system
EP3133316B1 (en) * 2014-04-14 2019-03-06 Kawasaki Jukogyo Kabushiki Kaisha Toroidal continuously variable transmission
CN108872622A (zh) * 2018-04-23 2018-11-23 徐州市永康电子科技有限公司 一种效果良好的理疗装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2076560A (en) * 1933-08-23 1937-04-13 Hayes Frank Anderson Variable speed power transmission system
US3142190A (en) * 1963-02-20 1964-07-28 Curtiss Wright Corp Ratio control system for toroidal transmission
GB1069874A (en) * 1963-05-03 1963-05-19 Nat Res Dev Variable ratio transmission
US3244025A (en) * 1963-12-31 1966-04-05 Curtiss Wright Corp Automatic toroidal-type transmission
GB1146321A (en) * 1965-03-09 1969-03-26 English Electric Co Ltd Variable ratio friction gears

Also Published As

Publication number Publication date
DE2236257B2 (de) 1981-05-21
FR2147721A5 (it) 1973-03-09
US3826147A (en) 1974-07-30
GB1392450A (en) 1975-04-30
DE2236257A1 (de) 1973-02-08
SE370995B (it) 1974-11-04
JPS5718058B1 (it) 1982-04-14
NL7210389A (it) 1973-01-30
NL164647C (nl) 1981-01-15
DE2236257C3 (de) 1982-01-21

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