IT961680B - Ingranaggio di trasmissione a frizione con rapporto variabile - Google Patents

Ingranaggio di trasmissione a frizione con rapporto variabile

Info

Publication number
IT961680B
IT961680B IT5173472A IT5173472A IT961680B IT 961680 B IT961680 B IT 961680B IT 5173472 A IT5173472 A IT 5173472A IT 5173472 A IT5173472 A IT 5173472A IT 961680 B IT961680 B IT 961680B
Authority
IT
Italy
Prior art keywords
clutch
drive gear
variable ratio
variable
ratio
Prior art date
Application number
IT5173472A
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 IT961680B publication Critical patent/IT961680B/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)
  • Control Of Transmission Device (AREA)
IT5173472A 1971-07-27 1972-07-25 Ingranaggio di trasmissione a frizione con rapporto variabile IT961680B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3531871A GB1392707A (en) 1971-07-27 1971-07-27 Variable-ratio frictional drive gears

Publications (1)

Publication Number Publication Date
IT961680B true IT961680B (it) 1973-12-10

Family

ID=10376364

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5173472A IT961680B (it) 1971-07-27 1972-07-25 Ingranaggio di trasmissione a frizione con rapporto variabile

Country Status (7)

Country Link
JP (1) JPS5718057B1 (it)
DE (1) DE2236290C3 (it)
FR (1) FR2147720A5 (it)
GB (1) GB1392707A (it)
IT (1) IT961680B (it)
NL (1) NL164648B (it)
SE (1) SE370775B (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5517784A (en) * 1978-05-31 1980-02-07 British Leyland Cars Ltd Rolling friction type transmission device having continuous variable ratio
US4499782A (en) * 1981-10-05 1985-02-19 National Research Development Corporation Transmission units of the toroidal race rolling friction type
JPH0848154A (ja) * 1995-06-12 1996-02-20 Yanmar Diesel Engine Co Ltd 作業車両
JPH0848155A (ja) * 1995-06-12 1996-02-20 Yanmar Diesel Engine Co Ltd 作業車両
US7018320B2 (en) 2000-11-29 2006-03-28 Torotrak (Development) Limited Roller control unit

Also Published As

Publication number Publication date
SE370775B (it) 1974-10-28
NL7210390A (it) 1973-01-30
GB1392707A (en) 1975-04-30
DE2236290A1 (de) 1973-02-08
JPS5718057B1 (it) 1982-04-14
NL164648B (nl) 1980-08-15
DE2236290C3 (de) 1979-02-15
DE2236290B2 (de) 1978-06-22
FR2147720A5 (it) 1973-03-09

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