Hybrid rotor module cooling
AssigneeBorgWarner Inc.
InventorsBradley Duane Chamberlin, Sven Norbert Altlay, Jomon Kaniampalackal, Clemens Burger
Life of this patent
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Abstract
An electric machine including a housing, and a stator mounted to the housing. The stator includes a plurality of laminations, a first end turn and a second end turn. A rotor shaft extends through the housing. A hybrid rotor module is coupled to the rotor shaft. The hybrid rotor module includes a clutch basket having a rotor carrier. The clutch basket houses one or more clutch assemblies. A rotor is mounted to the rotor carrier, and one or more openings are formed in the rotor carrier. The one or more openings direct coolant onto at least one of the stator, the first end turn, and the second end turn.
Claims22
An electric machine comprising:
- a housing;
- a stator mounted to the housing, the stator including a plurality of laminations, a first end turn and a second end turn;
- a rotor shaft extending through the housing;
- a hybrid rotor module coupled to the rotor shaft, the hybrid rotor module comprising:
- a clutch basket including a rotor carrier, the clutch basket housing one or more clutch assemblies;
- a rotor mounted to the rotor carrier;
- and
- one or more openings formed in the rotor carrier, the one or more openings directing coolant onto at least one of the stator, the first end turn, and the second end turn.
A method of cooling a hybrid rotor module of an electric machine comprising:
- guiding an volume of coolant into a clutch basket of the hybrid rotor module;
- passing at least a portion of the volume of coolant to at least one clutch assembly arranged in the clutch basket;
- directing at least some of the portion of the volume of coolant through a rotor carrier of the clutch basket;
- and
- flinging the at least some of the portion of the volume of coolant onto at least one end turn of a stator of the electric machine.
Dependencies are inferred from the claim text.