Vehicle drive device

A vehicle drive device comprising:

• a drive source configured to drive a wheel;
• a transmission mechanism configured to transmit power between the drive source and the wheel;
• and a case that houses the drive source and the transmission mechanism, wherein
• a target shaft portion that is a part of any one shaft of the transmission mechanism, an axial direction is a direction along a rotation axis of the target shaft portion, a first axial side is one side in the axial direction, and a second axial side is the other side in the axial direction,
• the case has a tubular inner peripheral surface that is an inner peripheral surface that faces a target outer peripheral surface that is an outer peripheral surface of the target shaft portion, a first opening and a second opening that are open in the tubular inner peripheral surface, a first oil passage that communicates with the first opening, and a second oil passage that communicates with the second opening,
• a blade portion configured to rotate integrally with the target shaft portion is provided between the target outer peripheral surface and the tubular inner peripheral surface,
• regulating portions configured to regulate a flow of oil in the axial direction between the target outer peripheral surface and the tubular inner peripheral surface are provided on the first axial side and the second axial side with respect to a region in the axial direction where the blade portion, the first opening, and the second opening are located,
• the first opening is located away from the second opening on the first axial side,
• the first oil passage communicates with an oil reservoir in which the oil is stored, and
• the second oil passage communicates with a target space that is a space where a supply target to which the oil is supplied is disposed,
• a third oil passage that communicates with the first opening and the target space;
• and
• a fourth oil passage that communicates with the second opening and the oil reservoir, wherein
• the blade portion is configured to force-feed the oil to the second axial side when the target shaft portion is in a forward rotation state that is a rotation state of each part when the wheel is rotating in a direction in which a vehicle moves forward,
• the first oil passage includes a first one-way valve configured to regulate a flow of the oil from the first opening to the oil reservoir and allow a flow of the oil from the oil reservoir to the first opening,
• the second oil passage includes a second one-way valve configured to regulate a flow of the oil from the target space to the second opening and allow a flow of the oil from the second opening to the target space,
• the third oil passage includes a third one-way valve configured to regulate a flow of the oil from the target space to the first opening and allow a flow of the oil from the first opening to the target space, and
• the fourth oil passage includes a fourth one-way valve configured to regulate a flow of the oil from the second opening to the oil reservoir and allow a flow of the oil from the oil reservoir to the second opening.