Power transfer device having center differential gear for four-w

Details Power transfer device having center differential gear for four-w Power transfer device having center differential gear for four-w

1990-11-06

1993-02-02

Mitchell, David M.

Motor vehicles

Having four wheels driven

With manually operated means for disengaging drive to one or...

180250, 74339, 192 53F, 475250, B60K 17352

Patent

active

051831325

ABSTRACT:
A power transfer device having a center differential gear unit for use in a four-wheel drive vehicle of part time four-wheel drive type of the present invention comprises: an intermediate shaft which is rotatably provided around a rotary shaft, which rotary shaft is driven to transmit the driving power of an engine and connected with one of the output elements of the center differential gear unit, and which is detechably connected with the rotary shaft through the first clutch mechanism; and an output shaft which is rotatably provided around the intermediate shaft and detachably connected with the intermediate shaft through the second clutch mechanism having a synchro-mesh unit, wherein the transmission can be optionally changed over among the two-wheel drive state in which the center differential gear unit is locked, the four-wheel drive state in which the center differential gear unit is locked, and the four-wheel drive state in which the center differential gear is released, by moving the sleeve in the first clutch mechanism.

REFERENCES:
patent: 2221892 (1940-11-01), Orr
patent: 4804061 (1989-02-01), Kameda
patent: 4907473 (1990-03-01), Fujitani et al.

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