Pulley device for continuously variable transmission

Details Pulley device for continuously variable transmission Pulley device for continuously variable transmission

1994-01-27

1995-08-08

Schoeppel, Roger J.

Endless belt power transmission systems or components

Pulley with belt-receiving groove formed by drive faces on...

Load responsive

474 28, F16H 5900

Patent

active

054394198

ABSTRACT:
A pulley device includes a moveable conical pulley component which is moveable to a stationary conical pulley component by a servo motor. The servo motor includes a cylinder fixedly held with respect to a shaft portion of the stationary conical pulley component, and a piston fixed to the moveable conical pulley component and slidably engaging the cylinder. The servo motor also includes an auxiliary cylinder reduced in diameter than the cylinder and fixed with respect to the shaft portion, and an auxiliary piston fixed to the moveable conical pulley component. The auxiliary piston is received in the auxiliary cylinder.

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patent: 4735597 (1988-05-01), Cadee
patent: 4850936 (1989-07-01), Nakamura
patent: 4948370 (1990-08-01), Yamada
patent: 4977798 (1990-12-01), Takahashi

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