Shift actuator for a multi-speed transmission

Details Shift actuator for a multi-speed transmission Shift actuator for a multi-speed transmission

1978-11-13

1981-02-17

Rosenthal, Arnold

Fluid handling

Systems

Multi-way valve unit

251251, 74107, F16K 1107, F16K 31524

Patent

active

042509238

ABSTRACT:
A shift actuator for a multi-speed transmission includes a valve body and a spool movably positioned in a bore defined in the valve body. Fluid pressure acts on one end of the valve spool while a rotary cam is manually positionable to move the spool to various operating positions. Porting communicating with the valve bore is selectively blocked by the spool in its various positions.

REFERENCES:
patent: 1748732 (1930-02-01), Rode
patent: 2928612 (1960-03-01), MacCracken et al.
patent: 3279748 (1966-10-01), Coulter
patent: 3352325 (1967-11-01), Stryker
patent: 3903926 (1975-09-01), Constantinesco

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