Planetary gear transmission systems or components – Variable speed or direction transmission combined with... – Transmission output shaft parallel to differential output...
Patent
1998-02-04
2000-11-07
Marmor, Charles A
Planetary gear transmission systems or components
Variable speed or direction transmission combined with...
Transmission output shaft parallel to differential output...
475204, 475198, 74665GA, 180248, 180249, F16H 3708
Patent
active
061429058
ABSTRACT:
A transmission for a four-wheel drive vehicle having a multi-speed geartrain and power transfer mechanism incorporated into a common housing assembly. The multi-speed geartrain includes a input shaft, a mainshaft, and a plurality of constant-mesh gearsets arranged for selectively coupling the mainshaft to the input shaft for driven rotation at various speed ratios. The mainshaft can be selectively coupled to the power transfer mechanism for establishing two alternative power transmission routes. In particular, a range shift mechanism is provided for establishing a high-range power transmission route and a low-range power transmission route from the mainshaft to the input of an interaxle differential. The torque delivered to the interaxle differential is split between the front and rear drivelines to establish a full-time four-wheel drive mode. A transfer clutch is provided for automatically controlling slip and torque biasing between the outputs of the interaxle differential.
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Brown David
Zajac Alan P.
Marmor Charles A
New Venture Gear Inc.
Parekh Ankur
LandOfFree
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