Planetary gear transmission systems or components – Differential planetary gearing – Differential or nondifferential planetary combined with...
Patent
1991-05-10
1993-09-21
Bonck, Rodney H.
Planetary gear transmission systems or components
Differential planetary gearing
Differential or nondifferential planetary combined with...
475249, B60K 1734, F16H 142
Patent
active
052464083
ABSTRACT:
A central differential is provided for distributing the output of an automatic transmission to front and rear wheels of a motor vehicle. The central differential comprises a planetary gear device including a first sun gear operatively connected to an output shaft of the transmission, a carrier, first and second planetary pinions integral with each other and rotatably supported on the carrier, and a second sun gear. The first planetary pinion is engaged with the first sun gear, and the second planetary pinion is engaged with the second sun gear. The carrier is operatively connected to either the front wheels or rear wheels and the second sun gear is operatively connected to the other wheels. A brake is provided to prevent the second sun gear from rotating when output speed of the transmission exceeds a predetermined speed in the highest speed range of the transmission thereby providing an overdrive speed.
REFERENCES:
patent: 3941199 (1976-03-01), Williams
patent: 4779699 (1988-10-01), Hatano
patent: 5017183 (1991-05-01), Teraoka
patent: 5066268 (1991-11-01), Kobayashi
patent: 5071396 (1991-12-01), Kobayashi
patent: 5083988 (1992-01-01), Kobayashi et al.
patent: 5097921 (1992-03-01), Tezuka
patent: 5098351 (1992-03-01), Kobayashi
Bonck Rodney H.
Farber Martin A.
Fuji Jukogyo Kabushiki Kaisha
Massey Ryan W.
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