Variable ratio transmission

Details Variable ratio transmission Variable ratio transmission

1995-05-03

1996-12-10

Ta, Khoi Q.

Planetary gear transmission systems or components

Planet periphery surrounds axis of interacting gear

Friction gearing

74117, F16H 132, F16H 2904

Patent

active

055825567

ABSTRACT:
A variable speed transmission has a gyratory collar element and a conical element engaged over a portion of their respective surfaces through a friction material. The collar moves toward the base of the cone to increase the gear ratio. Movement of the collar may be controlled manually or automatically using sensors of speed and/or torque. The device may also serve as a clutch by withdrawing the collar from contact with the cone.

REFERENCES:
patent: 1771807 (1930-07-01), Mitchell
patent: 3227004 (1966-01-01), Orain
patent: 4515028 (1985-05-01), Vanderlinden et al.
patent: 4644810 (1987-02-01), Vanderlinden et al.

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