Double offset transfer case with electronically-controlled torqu

Details Double offset transfer case with electronically-controlled torqu Double offset transfer case with electronically-controlled torqu

1995-11-27

1997-12-09

Hurley, Kevin

Motor vehicles

Having four wheels driven

With differential means for driving two wheel sets at...

180197, 475202, 475222, 364424098, B60K 1734

Patent

active

056950225

ABSTRACT:
A power transfer system for a four-wheel drive vehicle is disclosed having a transfer case with its input angled relative to its outputs by means of a constant velocity (CV) universal joint. More specifically, the transfer case input includes a first rotary member adapted to be rotatably driven about the rotary axis of the transmission output shaft, a second rotary member supported for rotation about a second rotary axis that is angled relative to the first rotary axis, and a CV joint interconnecting the first and second rotary members. The transfer case outputs include a pair of rotary output members supported for relative rotation about a common third rotary axis that is offset from the second rotary axis. A torque transfer arrangement is provided for transferring torque from the transfer case input to its outputs. As such, the CV joint allows the transfer case to be angulated so that reduced departure angles are achieved with respect to the prop shaft connections. The transfer case includes a two-speed reduction apparatus, an electronically-controlled transfer clutch, and a mode shift arrangement for permitting the vehicle operator to select operation in various on-demand and part-time four-wheel drive modes.

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