Manual transmission for four-wheel drive vehicle

Details Manual transmission for four-wheel drive vehicle Manual transmission for four-wheel drive vehicle

2006-05-09

2006-05-09

Wright, Dirk (Department: 3681)

Planetary gear transmission systems or components

Variable speed or direction transmission combined with...

With universal joint in drive train

Reexamination Certificate

active

07041025

ABSTRACT:
A manual transmission for a four-wheel drive vehicle transmits a power to a front drive shaft for driving front wheels and to a rear drive shaft for driving rear wheels through a propeller shaft. A plurality of shift gear trains are formed by drive gears mounted on an input shaft, driven gears meshing with the drive gears and mounted on an output shaft arranged below the input shaft and clutches. The output shaft is hollowed inside to incorporate the front drive shaft therein. An intermediate shaft is rotatably, coaxially disposed with the input shaft and is driven by the output shaft through a connection gear train. The intermediate shaft is coaxially connected with a transfer unit from which power is distributed to the front drive shaft through another connection gear train and at the same time to the rear drive shaft. Further, the transmission incorporates another clutch for directly transmitting power from the input shaft to the intermediate shaft so as to produce a shift gear ratio of 1.0.

REFERENCES:
patent: 5906557 (1999-05-01), Kobayashi
patent: 6830528 (2004-12-01), Yamada
patent: 10-166877 (1998-06-01), None

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