18474605. RADIAL FLUX ELECTRIC MOTOR WITH AIRGAP COOLING (GM Global Technology Operations LLC)
RADIAL FLUX ELECTRIC MOTOR WITH AIRGAP COOLING
Organization Name
GM Global Technology Operations LLC
Inventor(s)
Farzad Samie of Franklin MI US
RADIAL FLUX ELECTRIC MOTOR WITH AIRGAP COOLING
This abstract first appeared for US patent application 18474605 titled 'RADIAL FLUX ELECTRIC MOTOR WITH AIRGAP COOLING
Original Abstract Submitted
A radial flux electric motor includes a stator having a radially inner stator surface and a rotor mounted inside the stator. The rotor defines a rotational axis and has axially opposite rotor ends and a radially outer rotor surface positioned proximate the radially inner stator surface, thereby establishing an airgap therebetween. The rotor also includes a fluid circulation arrangement having at least one fluid channel extending through the rotor to the radially outer rotor surface and configured to receive a liquid via a first passage and a gas via at least one second passage. The fluid circulation arrangement is also configured to direct the liquid and the gas, via centrifugal force, into the airgap as the rotor rotates inside the stator sufficiently to discharge the liquid and the gas out of the airgap at the axially opposite ends of the rotor, thereby cooling the electric motor.
