Patent ID: 6612196
Filing Date: 2003-09-02
Classification: F16H,Y10T

Abstract:
A power-assisted gear shifting device (118) for a multi-speed step-change transmission (102) of a step-down design, the power-assisted gear shifting device (118) comprising:a shift cylinder (1) accommodating a single movable piston (2); a plurality of valves (4, 5, 6, 7) connected to the shift cylinder (1) for facilitating movement of the piston, via a pressurized fluid, within the shift cylinder (1); a gear shifting element (2A), directly connected to the piston, for facilitating torque transmission by a gear of the transmission; and a single guiding rail (9) engaging with the shift cylinder (1) and extending axially through the shift cylinder and the single piston and supporting the piston such that the piston is bidirectionally axially movable along the guiding rail (9).