Patent ID: 6843745

Claim:
An automatic transmission for a vehicle comprising a housing accommodating an input shaft, an output shaft and at least one torque-controlling shaft ( 1 ), and the automatic transmission having a plurality of clutches and brakes positioned therein for engaging a desired gear of the automatic transmission; wherein a first end of the torque-controlling shaft ( 1 ) has a first set of teeth and a second opposed end of the torque-controlling shaft ( 1 ) has a second set of teeth, and the torque-controlling shaft ( 1 ), between the first and second sets of teeth, is a solid shaft without any cross bores and grooves and without any lengthwise bore formed therein for a central supply of fluid to desired ones of the plurality of clutches and brakes; and the central supply of fluid to the plurality of clutches and brakes is accomplished via a stator shaft ( 9 ) and an insert ( 6 ), the insert ( 6 ) and the stator shaft ( 9 ) together define and form fluid channels ( 8 ) for supplying fluid to the plurality of clutches and brakes.