Infinitely variable-speed transmission

Details Infinitely variable-speed transmission Infinitely variable-speed transmission

1997-10-07

2000-09-26

Bucci, David A.

Endless belt power transmission systems or components

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

474 18, 474 28, F16H 5556, F16H 5900, F16H 6100

Patent

active

061236349

ABSTRACT:
An infinitely variable-speed transmission for use in the power train of a motor vehicle has two rotary sheaves and an endless flexible element trained over the sheaves to transmit torque from the flanges of one of the sheaves to the flanges of the other sheave when the one sheave is driven by the prime mover of the vehicle. The flanges have exposed conical surfaces which are frictionally engaged by the exposed end surfaces of pintles forming part of the flexible element when the latter transmits torque. The flanges are hardened, cushioned, roughened and/or otherwise treated at their exposed surfaces to promote the ability of the sheaves to eliminate or reduce noise on contact with the pintles, to stand long periods of use without extensive wear, and/or to transmit pronounced and variable torques.

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patent: 5766105 (1998-06-01), Fellows et al.
patent: 5797819 (1998-08-01), Arai
patent: 5879253 (1999-03-01), Friedmann et al.

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