A system for cooling and lubricating a rotor shaft bearing of an electric machine is provided. In one example, the system includes a plurality of oil passages that extend axially through a rotor shaft and open into a sealed cavity near a housing interface between an electric machine housing and gearbox housing to route oil to the rotor shaft bearing for cooling and lubrication thereof.
Cooling and lubrication system for an electric motor and gearbox assembly
2024-05-14
Patent
Electronic Resource
English
COOLING AND LUBRICATION SYSTEM FOR AN ELECTRIC MOTOR AND GEARBOX ASSEMBLY
European Patent Office | 2023
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