Transmission unit, particularly motor vehicle transmission unit, has four planetary gear trains arranged behind one another along main axis of rotation, six coupling units, drive unit and sun wheel of latter planetary gear train

摘要

The transmission unit has four planetary gear trains (P1a,P2a,P3a,P4a) arranged behind one another along a main axis of rotation (10a), six coupling units (S1a,S2a,S3a,S4a,S5a,S6a), a drive unit (11a) and a sun wheel (P21a) of the latter planetary gear train. The transmission unit has an output unit (12a), a planetary carrier (P32a) of the third planetary gear train and a hollow wheel (P43a) of the fourth planetary gear train, which are connected with each other in a torque-proof manner.