V belt stepless variable transmission

Details V belt stepless variable transmission V belt stepless variable transmission

1985-06-24

1987-12-22

Novosad, Stephen J.

Endless belt power transmission systems or components

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

Fluid pressure actuator for adjustment of member

474 29, F16H 904

Patent

active

047144513

ABSTRACT:
A V belt stepless variable transmission provided with a driving pulley comprising a stationary conical disc fixed to a drive shaft and a movable conical disc axially movable with respect to the drive shaft, a driven pulley comprising a stationary conical disc fixed to a driven shaft and a movable conical disc axially movable with repsect to the driven shaft, and an endless V belt running across both the pulleys, so that an interval between each stationary conical disc and each movable conical disc is changed to thereby carry out stepless variable transmission, the driving pulley being provided with a tension adjusting means for mechanically giving to the movable conical disc thrust to meet input torque to thereby adjust tension on the V belt, and the driven pulley being provided with an hydraulic actuating cylinder for hydraulically driving the movable conical disc at the driven pulley, so that a fluid is supplied or discharged to or from the hydraulic actuating cylinder so as to actuate the movable conical disc at the driven pulley, thereby controlling the pulley ratio.

REFERENCES:
patent: 3365967 (1968-01-01), Moogk
patent: 3722308 (1973-03-01), Steuer
patent: 4016771 (1977-04-01), Berens et al.
patent: 4026161 (1977-05-01), Vogel
patent: 4048864 (1977-09-01), Ritter
patent: 4173155 (1979-11-01), Togami et al.
patent: 4321991 (1982-03-01), Teijido et al.
patent: 4523917 (1985-06-01), Schildt

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