Oil cooled motor/generator for an automotive powertrain

Abstract

An oil-cooled motor/generator for an automotive powertrain located outside of the transmission is provided, such as a BAS motor/generator. The motor/generator may have a stator, a rotor circumscribed by the stator, and a motor shaft on which the rotor is mounted for rotation. A housing assembly may surround the stator and the rotor, with a bearing positioned between the housing assembly and the motor shaft. A flow control member may at least partially circumscribe the rotor axially adjacent the stator. A bearing retainer may be positioned axially adjacent the bearing. A rotor end ring may be axially adjacent the rotor. The housing assembly may have an inlet configured to receive cooling oil. The housing assembly, the flow control member, the bearing retainer and the rotor end ring may be configured to distribute the cooling oil from the inlet to cool the stator, the rotor and the bearing.

Dependencies are inferred from the claim text.