Manually-operated control device for a motor vehicle gearbox com

Details Manually-operated control device for a motor vehicle gearbox com Manually-operated control device for a motor vehicle gearbox com

1987-01-14

1988-06-21

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

74868, F16H 1104

Patent

active

047522780

ABSTRACT:
The device enables the control of a gearbox comprising a continuous variator with two hydraulically-controlled pulleys, primary and secondary, of expanding type. The device comprises a hydraulic control unit with a supply inlet for connection to a source of hydraulic fluid, and first and second control outlets for connection to the primary and secondary pulleys of the variator. The hydraulic unit includes a manually-operated control member. In dependence on the position of the control member, the hydraulic unit supplies varying amounts of pressurized hydraulic fluid to the primary and secondary pulleys of the variator, producing a different transmission ratio.

REFERENCES:
patent: 3043152 (1962-07-01), Karig et al.
patent: 3200666 (1965-08-01), Schrodt et al.
patent: 4161894 (1979-07-01), Giacosa
patent: 4627313 (1986-12-01), Sakai
patent: 4671140 (1987-06-01), Koshio

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