Patent ID: 6845617

Claim:
An electric assisted turbocharger comprising: a center housing comprising a turbocharger shaft rotatably disposed therein that is rotatably carried on a bearing assembly; a turbine housing attached to the center housing and comprising a turbine disposed therein, the turbine being attached to one axial end of the turbocharger shaft; a compressor housing positioned at an end of the center housing opposite from the turbocharger housing, the compressor being attached to the other axial end of the turbocharger shaft; a motor housing interposed between the compressor housing and the center housing; and an electric motor positioned inside of the motor housing, the electric motor having a stator and a rotor, the rotor being coupled to the shaft, wherein the stator has a left-hand winding projecting outwardly from an axial end of the motor towards the compressor, and a right-hand winding projecting outwardly from an opposite axial end of the motor towards the center housing, wherein the left-hand winding extends radially a greater distance along the motor than that of the right-hand winding, and wherein the motor comprises a radial gap between the rotor and the right-hand winding; and wherein the center housing includes an axial end portion that projects inwardly into the motor housing into an area defined by the radial gap.