Aisin Corporation

Takatoshi Katayama

Teppei Yamashita

Takayoshi Hanai

Hiroaki Sanji

Nozomu Takahashi

Yusuke Naito

Takuya Muneto

A vehicular drive device includes a rotating electrical machine, transmission mechanism, case, and communication oil passage. The case includes a first housing chamber housing the rotating electrical machine and a second housing chamber housing the transmission mechanism. The communication oil passage communicates with the first and second housing chambers. The lower part of the second housing chamber forms a second oil reservoir where oil is scraped up by gear rotation. The case includes a partition wall between the first and second housing chambers axially. The communication oil passage runs under the partition wall and includes a first and second opening. The first opening opens to the first housing chamber at a first position away from the partition wall toward the first side in the axial direction. The second opening opens to the second housing chamber at a second position away from the partition wall toward the second side axially.

Vehicular drive device capable of securing an appropriate amount of oil in a first housing chamber and a second housing chamber

A vehicle drive device includes an axial oil guide passage that receives oil splashed by a differential input gear and dropping from a meshing portion between the differential input gear and a second counter gear and guides the oil in an axial direction along a third axis to a tooth surface of a first counter gear.

Vehicle drive device with an axial oil guide passage

A vehicle drive device includes a first catch tank that stores oil splashed by a differential input gear in response to a rotor rotating in a first rotation direction and stores oil splashed by a first counter gear in response to the rotor rotating in a second rotation direction reverse to the first rotation direction and a second catch tank that stores oil splashed by the first counter gear in response to the rotor rotating in the second rotation direction. The first catch tank and the second catch tank are aligned in a vertical direction and at least partially overlap each other when viewed in the vertical direction. The second catch tank is at a lower position than the first catch tank.

Growing community of inventors

Kariya, Japan

Takatoshi Katayama