Vehicle drive device

A vehicle drive device, comprising

• an input shaft drivably coupled to an internal combustion engine,
• a rotary electric machine,
• an output shaft drivably coupled to wheels,
• a power transfer mechanism that drivably couples the input shaft, the rotary electric machine, and the output shaft, and
• a case that houses at least the rotary electric machine and the power transfer mechanism, wherein:
• the rotary electric machine includes a rotor and a cylindrical rotor shaft disposed coaxially with the input shaft to support the rotor;
• the power transfer mechanism includes a cylindrical member and an inside gear mechanism provided on a side in a first axial direction, which corresponds to one side in an axial direction, with respect to the rotor;
• the inside gear mechanism meshes with internal teeth provided on an inner peripheral face of the cylindrical member, and is housed in an inside housing space formed on a radially inner side of the cylindrical member;
• the cylindrical member is rotatably supported from a radially inner side by two support bearings disposed on both sides in the axial direction across the inside gear mechanism;
• an oil reserving portion capable of reserving oil supplied by rotation of the power transfer mechanism is provided above the rotor shaft inside the case;
• a communication oil passage that communicates between the oil reserving portion and an inner circumferential space formed inside the rotor shaft is provided;
• and
• the rotor shaft is disposed to be inserted into the inside housing space, and has a supply communication hole that communicates between the inner circumferential space and the inside housing space.