Belt type continuously variable transmission for vehicle

Details Belt type continuously variable transmission for vehicle Belt type continuously variable transmission for vehicle

1988-04-25

1989-11-21

Bui, Thuy M.

Endless belt power transmission systems or components

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

Load responsive

74865, 474 28, F16H 1102

Patent

active

048819255

ABSTRACT:
A hydraulic pressure controller is provided between a hydraulic actuator for changing the effective radii of a drive V-pulley mounted on an input shaft and a driven V-pulley mounted on an output shaft and a hydraulic pump is provided for supplying hydraulic pressure to the hydraulic actuator. The hydraulic pressure controller is controlled by an input torque sensor and a speed change ratio sensor, whereby the hydraulic pressure supplied to the hydraulic actuator is automatically controlled in proportion to the input torque received by the input shaft and the speed change ratio between the input and output shafts.

REFERENCES:
patent: 3720113 (1973-03-01), Doorne et al.
patent: 4519790 (1985-05-01), Yamamuro et al.
patent: 4522086 (1985-06-01), Haley
patent: 4526561 (1985-07-01), Hattori
patent: 4533340 (1985-08-01), Abo et al.
patent: 4552548 (1985-11-01), Hattori
patent: 4560369 (1985-12-01), Hattori
patent: 4619157 (1986-10-01), Sakai
patent: 4672864 (1987-06-01), Morimoto
patent: 4764156 (1988-08-01), Ohkumo

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