| 摘要 |
A fluid pressure-operated shift actuator (11) is provided of the type defining a series of fluid pressure chambers (69, 71, 91, and 95). The actuator is operable to move a shift finger (19) to any one of four shift rails (1,2,3,4) by actuating various combinations of solenoids (29,31,33). One of the fluid pressure chambers (95) provides a constant bias of the shift finger (19) toward the first shift rail (1). Actuation of the second and third pressure chambers (71,91) results in selection of the third shift rail, because pressurization of the third pressure chamber (91) limits the rightward movement of the crank arrangement (37) which directly controls position of the shift finger (19). |
