All-wheel drive transfer case with different front and rear...

Details All-wheel drive transfer case with different front and rear... All-wheel drive transfer case with different front and rear...

2005-08-09

2005-08-09

Pang, Roger (Department: 3681)

Planetary gear transmission systems or components

Variable speed or direction transmission combined with...

C475S204000, C475S206000, C475S210000, C475S213000, C475S223000, C475S269000, C475S295000, C475S303000, C475S311000, C475S330000, C180S247000, C180S233000, C192S053340, C192S053350, C192S048910

Reexamination Certificate

active

06926634

ABSTRACT:
A transfer case is provided for a vehicle having front and rear axles. The transfer case includes a planetary gear set with first, second and third members. The first member is continuously connected with the front axle and the second member is continuously connected with the rear axle. An input shaft is selectively connectable with the first, second or third member. The transfer case provides rear-wheel drive when the second member is connected with the input shaft, all-wheel drive when the third member is connected with the input shaft, and front-wheel drive when the first member is connected with the input shaft. It is important that the specific members of the planetary gear set be chosen so the absolute value of the torque of the third member is equal to the sum of the absolute value of the torques of the first and second members.

REFERENCES:
patent: 4349091 (1982-09-01), Miyake et al.
patent: 5199325 (1993-04-01), Reuter et al.
patent: 5911644 (1999-06-01), Williams
patent: 6022289 (2000-02-01), Francis
patent: 6056666 (2000-05-01), Williams
patent: 6602159 (2003-08-01), Williams
patent: 6814682 (2004-11-01), Spitale

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