GB1146323A - Improvements relating to variable-ratio frictional drives - Google Patents

Improvements relating to variable-ratio frictional drives

Info

Publication number
GB1146323A
GB1146323A GB1057467A GB1057467A GB1146323A GB 1146323 A GB1146323 A GB 1146323A GB 1057467 A GB1057467 A GB 1057467A GB 1057467 A GB1057467 A GB 1057467A GB 1146323 A GB1146323 A GB 1146323A
Authority
GB
United Kingdom
Prior art keywords
variable
loading piston
ball
piston
pistons
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
GB1057467A
Inventor
George Maurice Martin Magill
Clifford Raymond Schofield
Richard Nelson Rhodes
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.)
English Electric Co Ltd
Original Assignee
English Electric Co 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 English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to GB1057467A priority Critical patent/GB1146323A/en
Publication of GB1146323A publication Critical patent/GB1146323A/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
    • 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)
  • Gear-Shifting Mechanisms (AREA)

Abstract

1,146,323. Variable-speed friction gears. ENGLISH ELECTRIC CO. Ltd. 8 March, 1967 [9 March, 1966], No. 10574/67. Heading F2D. A variable-speed friction gear comprises precessing rollers 24 which are engaged between axially loaded toric driving and driven discs 30, 32, one of which includes a fluid-pressure loading piston as described in Specification 1,146,321, each roller being mounted in a tilting carriage 76 with ball ends 88, 80 respectively engaging in parallel laterally displaced cylinders 92, 98 in the carriage support spiders 17. Each ball 88 engages a loading piston 86 supplied with pressure liquid from the disc loading piston, a screw stop 106 limiting outward movement of the piston. Each ball 80 engages a guide sleeve 96 screwed into the bore 98 and locked in position by a plug 97. The pressure liquid for the pistons 86 is supplied from the disc loading piston to chambers 132 in the spider hubs, Fig. 9, from which it is fed through passages 109, 110 in the spider arms, the end of each passage 110 having a screwed plug 111 with an orifice for damping oscillations of the pistons 86.
GB1057467A 1966-03-09 1966-03-09 Improvements relating to variable-ratio frictional drives Expired GB1146323A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1057467A GB1146323A (en) 1966-03-09 1966-03-09 Improvements relating to variable-ratio frictional drives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1057467A GB1146323A (en) 1966-03-09 1966-03-09 Improvements relating to variable-ratio frictional drives

Publications (1)

Publication Number Publication Date
GB1146323A true GB1146323A (en) 1969-03-26

Family

ID=9970363

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1057467A Expired GB1146323A (en) 1966-03-09 1966-03-09 Improvements relating to variable-ratio frictional drives

Country Status (1)

Country Link
GB (1) GB1146323A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2361582A1 (en) * 1976-08-14 1978-03-10 Lucas Industries Ltd VARIABLE SPEED TRANSMISSION MECHANISM
GB2319571A (en) * 1996-10-31 1998-05-27 Jatco Corp Toroidal-race rolling traction continuously-variable transmission
US10487930B2 (en) 2017-06-20 2019-11-26 Team Industries, Inc. Drive clutch a CVT

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2361582A1 (en) * 1976-08-14 1978-03-10 Lucas Industries Ltd VARIABLE SPEED TRANSMISSION MECHANISM
GB2319571A (en) * 1996-10-31 1998-05-27 Jatco Corp Toroidal-race rolling traction continuously-variable transmission
GB2319571B (en) * 1996-10-31 2000-11-01 Jatco Corp Toroidal-type continuously variable transmission
US10487930B2 (en) 2017-06-20 2019-11-26 Team Industries, Inc. Drive clutch a CVT

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