Patent ID: 6729990
Filing Date: 2004-05-04
Classification: B60K,F16H,Y10T

Abstract:
An automatic transmission for motor vehicles with at least six gear steps and having a main wheel train (2) and a front-mounted wheel train (1), several wet-running shift elements (A to E) and a pump (3) for generating the shifting pressure for the shift elements (A to E) in the individual gear steps and connected through an input shaft (7) to a torsional-vibration damper power input to the transmission;wherein the main wheel train (2) and the front-mounted wheel train (1) are disposed in a power flow path through the transmission such that the front mounted wheel train (1) is connected in the power flow path by one of a first connection that is serial with and before the main wheel train (2) and a second connection that is parallel with the main wheel train (2), the front-mounted wheel train (1) and the main wheel train (2) are disposed co-axially with each other, the front-mounted wheel train (1) is non-shiftably designed and, relative to the input shaft (7), is situated spatially behind the main wheel train (2) upon a side of the automatic transmission remote from the input shaft (7) and an output of the main wheel train (2) is connected with a supported spur gear (12) operatively connected with a differential (9), and a bearing (4) is situated between the spur gear (12) and the pump (3).