Transmission and control with hydraulically actuated synchronize

Details Transmission and control with hydraulically actuated synchronize Transmission and control with hydraulically actuated synchronize

1993-10-21

1995-08-29

Marmor, Charles A.

Machine element or mechanism

Gearing

Interchangeably locked

74335, 477130, F16H 6118, F16H 3083

Patent

active

054450420

ABSTRACT:
A countershaft type power transmission has a plurality of hydraulically actuated synchronizers which are selectively operable to establish the gear ratios in the transmission. Each synchronizer is effective to control one or more ratios and is positionable between neutral positions. A hydraulic control system is provided to control the movement of the synchronizers and to hydraulically force each synchronizer to neutral when it is not called upon for ratio establishment.

REFERENCES:
patent: 4262554 (1981-04-01), Ahlen et al.
patent: 4756213 (1988-07-01), Mainquist et al.
patent: 4901603 (1990-02-01), Ishikawa
patent: 5092187 (1992-03-01), Irwin
patent: 5129274 (1992-07-01), Vukovich et al.
patent: 5172604 (1992-12-01), Monette et al.
patent: 5335562 (1994-08-01), Mastroianni et al.

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