Automatic transmission's Ravigneaux type planetary gear train having two ring gears
A planetary gear system is described comprising: a stationary member; input means for receiving a driving torque; an output shaft; a compound planetary gear train; a clutch group including a first clutch disposed between the input means and the first sun gear for connection and disconnection therebetween, a second clutch disposed between the input means and the second sun gear for connection and disconnection therebetween, and a third clutch disposed between the input means and the pinion carrier for connection and disconnection therebetween; and a holding device group including a first holding device disposed between the first sun gear and the stationary member for holding the first sun gear, a second holding device disposed between the pinion carrier and the stationary member for holding the pinion carrier, and a third holding device disposed between the second ring gear and the stationary member for holding the second ring gear.
- Assignee:
- Nissan Motor Co., Ltd., Yokohama
- Patent Number(s):
- US 4802385
- OSTI ID:
- 6196451
- Country of Publication:
- United States
- Language:
- English
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Planetary gear train
Planetary gear train for automatic transmission