Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1986-09-10
1988-03-08
Wright, Dirk
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
192 58C, 180248, F16H 344, F16H 5710
Patent
active
047292628
ABSTRACT:
A transmission unit particularly intended for use as a differential between driven axles of a vehicle comprises an epicyclic gear train having three rotatable members, specifically, an input member connected to an input shaft, a second member connected to one section of a liquid friction coupling, and an output member connected to an output shaft. To avoid an occurrence of constraining torques as the vehicle is steered and to permit a modulation within a wide range of the relationship between the speed difference between the sections of the coupling and the torque limit of the transmission unit, the second section of the liquid friction coupling is non-rotatably connected to a stationary structure of the transmission unit, specifically to a housing of the epicyclic gear train. Alternatively, said second section of the coupling may be adapted to be held against rotation by a brake, so that the axles of the vehicles can easily be uncoupled from each other. Output torque is delivered from the transmission unit only by the output member of the epicyclic gear train.
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Steyr-Daimler-Puch AG
Wright Dirk
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