Driving device for vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorTakayuki NISHIDA
Life of this patent
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Abstract
A driving device for a vehicle may include: a rotary electrical machine having a hollow output shaft extending along an axial direction; a case housing the rotary electrical machine; an intermediate shaft extending in a through hole of the output shaft along the axial direction and configured to transmit torque of the rotary electrical machine to wheels of a vehicle; and a bearing having an outer ring fixed to the case and an inner ring fixed to the output shaft, in which the intermediate shaft has a first channel configured to supply coolant to the rotary electrical machine, the case has a second channel configured to supply the coolant to the first channel, and a part of the second channel extends in proximity to the outer ring fixed to the case along a circumferential direction of the outer ring.
Claims4
A driving device for a vehicle, the driving device comprising:
- a rotary electrical machine having a hollow output shaft extending along an axial direction;
- a case housing the rotary electrical machine;
- an intermediate shaft extending in a through hole of the output shaft along the axial direction and configured to transmit torque of the rotary electrical machine to wheels of a vehicle;
- and
- a bearing having an outer ring fixed to the case and an inner ring fixed to the output shaft, and supporting the output shaft rotatably relative to the case,
- wherein the intermediate shaft has a first channel configured to supply coolant to the rotary electrical machine,
- the case has a second channel configured to supply the coolant to the first channel, and
- a part of the second channel extends in proximity to the outer ring fixed to the case along a circumferential direction of the outer ring.
Dependencies are inferred from the claim text.