Oil vacuum shaft
AssigneeSchaeffler Technologies AG & Co. KG
InventorsJessica Sampieri, Rodrigo Bahena, David Arellano, Franklin May, Irving Azael Escamilla
Life of this patent
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Abstract
A drive unit including an electric motor having a stator and a rotor, and at least one cooling fluid flow path for distributing oil through the drive unit including to at least one of the rotor or the stator. The rotor includes a hollow rotor shaft, the hollow rotor shaft has a passageway forming at least a part of the at least one cooling fluid flow path. An impeller is supported within a portion of the passageway of the rotor shaft, the impeller is configured to rotate with the rotor shaft.
Claims20
A drive unit comprising:
- an electric motor having a stator and a rotor;
- and
- at least one cooling fluid flow path for distributing oil through the drive unit including to at least one of the rotor or the stator;
- wherein the rotor includes a hollow rotor shaft, the hollow rotor shaft having a passageway forming at least a part of the at least one cooling fluid flow path;
- and
- wherein an impeller is supported within a portion of the passageway of the rotor shaft, the impeller configured to rotate with the rotor shaft for rotation within the passageway of the rotor shaft.
An electric motor comprising:
- a stator;
- a rotor;
- and
- at least one cooling fluid flow path for distributing oil through to at least one of the rotor or the stator;
- wherein the rotor includes a hollow rotor shaft, the hollow rotor shaft having a passageway forming at least a part of the at least one cooling fluid flow path;
- and
- wherein an impeller is supported within a portion of the passageway of the rotor shaft, the impeller configured to rotate with the rotor shaft to draw fluid into the passageway.
A rotor shaft assembly comprising:
- a rotor shaft having a hollow interior;
- and
- an impeller supported within the hollow interior of the rotor shaft for rotation therewith.
Dependencies are inferred from the claim text.