Continuously variable speed transmission

Details Continuously variable speed transmission Continuously variable speed transmission

1992-10-19

1994-03-22

Watts, Douglas D.

Endless belt power transmission systems or components

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

Load responsive

74867, F16H 918, F16H 1102

Patent

active

052959155

ABSTRACT:
A continuously variable speed transmission with first and second adjustable sheaves and an endless flexible element which is trained over the sheaves. A torque sensor is installed between a prime mover and the shaft for the first sheave to determine the axial position of the axially movable flange of the first sheave in dependency on the transmitted torque and the selected transmission ratio. The torque sensor employs an annulus of spherical rolling elements between the surfaces of two ramps one of which is movable axially of the shaft for the first sheave to initiate controlled radial and/or axial movements of the rolling elements. The surfaces of the ramps generate torque- and transmission ratio-dependent forces.

REFERENCES:
patent: 4261213 (1981-04-01), Rattunde
patent: 5046991 (1991-09-01), Friedmann

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