Planetary gear transmission systems or components – Variable speed or direction transmission combined with...
Patent
1995-11-13
1997-09-02
Marmor, Charles A.
Planetary gear transmission systems or components
Variable speed or direction transmission combined with...
475207, 180249, F16H 3708
Patent
active
056625430
ABSTRACT:
An improved geartrain includes a transmission unit operatively attached to a longitudinally placed engine. The transmission unit incorporates a multi-speed transmission and a lockable planetary differential and further includes an input shaft, an output shaft, and connecting drive and drive and gears. Two alternative torque paths are provided to a quill shaft from the output shaft. One of these paths is a high-range path and the other of these is a low-range path. The two torque paths are directed through a synchronizer clutch between low-range and high-range. One end of the quill shaft is connected to the low-high synchronizer clutch and the other end is connected to the lockable differential. The differential end of the quill shaft is connected to the pinion carrier of the differential. The torque delivered by the quill shaft is split by the differential when in its unlocked mode with a portion going to the rear wheels and a potion going to the front wheels. A front axle synchronizer clutch assembly is provided to allow the front axle to be disengaged for two-wheel drive operation, in which case the differential is locked.
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Kwon Peter T.
Marmor Charles A.
New Venture Gear Inc.
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