Central differential for a four-wheel drive motor vehicle
 A central differential is composed of a planetary gear device. The planetary gear device comprises a first sun gear connected to an output shaft of a transmission, a carrier, a pinion set comprising 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 first and second planetary pinions are in the same phase, and a plurality of the pinion sets are equiangularly disposed around the first and second sun gears. 
Fuji Jukogyo Kabushiki Kaisha
B
B60K
inventional
Toshio Hiroshi
Kobayashi Yamashita