Patent ID: 8157544
Filing Date: 2012-04-17
Classification: F01D,F02B,F02C,F05D,H02K,Y02T

Abstract:
1. A motor-driven supercharger comprising: a turbine shaft having a turbine impeller in one end thereof; a compressor impeller rotationally driven by the turbine shaft; a bearing housing supporting the rotatable turbine shaft; a motor stator fixed within the bearing housing; and a motor rotor rotationally driven by the motor stator, wherein the motor stator has a stator iron core, a stator winding, and a mold member embedding the stator iron core and the stator winding therein and having a high coefficient of thermal conductivity, and further comprising an outer sleeve closely attached to an outer peripheral surface of the mold member and to an inner surface of the bearing housing, wherein the outer sleeve forms a liquid tight water cooling jacket,