Vehicle gearbox with continuously variable gear ratio

Details Vehicle gearbox with continuously variable gear ratio Vehicle gearbox with continuously variable gear ratio

1981-12-01

1984-11-20

Staab, Lawrence 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 18, F16H 5552

Patent

active

044836872

ABSTRACT:
Gear box, especially for motor vehicles, with a driving and a driven shaft, which carry pulleys, between which pulleys torque is transmitted by means of a V-belt or chain. The pulleys consist of discs movable towards and away from each other, to make variation possible of the speed ratio between the shafts. The movement of the discs and the clamping force against the V-belt is controlled with the aid of hydraulic cylinder devices. The hydraulic cylinder of the driving shaft is joined to a gear which is arranged concentrically with the cylinder and which engages a gear on the input shaft of the gear box.

REFERENCES:
patent: 3600961 (1971-08-01), Rattunde
patent: 4152947 (1979-05-01), van Deursen et al.
patent: 4292031 (1981-09-01), Rattunde
patent: 4403974 (1983-09-01), Shermann et al.

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