Patent ID: 8096115

Claim:
A pump drive of an automatic transmission ( 1 ) with a hydrodynamic torque converter ( 10 ) driven by a drive motor (MOT) and an oil pump ( 49 ) driven by a pump wheel ( 11 ) of the torque converter ( 10 ), the pump wheel ( 11 ) of the torque converter ( 10 ) being connected to a converter hub ( 12 ) that extends from the pump wheel ( 11 ) of the torque converter ( 10 ) in the direction opposite the drive motor (MOT), the converter hub ( 12 ) is radially supported by a converter hub bearing ( 22 ) in or on a wall ( 21 , 21 a ) of the automatic transmission ( 1 ) fixed with respect to a transmission housing, and radially encloses a section of a pump drive shaft ( 40 ) of the oil pump ( 49 ), the pump drive shaft ( 40 ) is radially centered in the converter hub ( 12 ) and on a side facing toward the drive motor (MOT), being connected by positive interlock to the converter hub ( 12 ) by a driving profile ( 41 ).