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US 12,215,776 B2Granted
Power transmission device
AssigneeJATCO Ltd
InventorMasumi Fujikawa
Life of this patent
Estimating the term…
Abstract
A power transmission device, includes a motor; a gear mechanism connected downstream of the motor; a drive shaft connected downstream of the gear mechanism and disposed passing through an inner periphery of the motor; a pump that sucks oil through a pump inlet; and a plate that includes a facing surface facing the gear mechanism in an axial direction. The pump inlet is disposed adjacent to the plate on a back surface side of the facing surface.
Claims9
A power transmission device, comprising:
- a motor;
- a gear mechanism connected downstream of the motor, the gear mechanism including a planetary reduction gear and a differential mechanism;
- a drive shaft connected downstream of the gear mechanism and disposed passing through an inner periphery of the motor;
- a pump configured to suck oil through a pump inlet;
- a plate that includes a facing surface facing the planetary reduction gear and the differential mechanism in an axial direction and that supports the planetary reduction gear and the differential mechanism;
- a supporting wall provided on a gear mechanism side of the motor, the supporting wall supporting the motor, wherein
- the pump inlet is immersed in oil of an oil storage portion disposed in a first space formed between the plate and the supporting wall, the first space being separated from a second space wherein the planetary gear mechanism and the differential mechanism are disposed and the first space communicating with a third space wherein the motor is disposed through an opening in the supporting wall.
4 more elements
Dependencies are inferred from the claim text.