Vehicle drive device for lubrication a power transmission and cooling a rotating electric machine
US11114921B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 24, 2019 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Apr 28, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16N2270/56
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A vehicle drive device is provided with a lubricating path including a first oil pump to pump up an oil stored in the casing by the first oil pump and to supply the oil to the power transmission mechanism for lubricating the power transmission mechanism, and a cooling path that is separated from the lubricating circuit and provided for the rotating electric machine, the cooling path including a second oil pump to pump up the oil stored in the casing by the second oil pump to supply the oil exclusively to the rotating electric machine for cooling the rotating electric machine, the second oil pump is an electric oil pump, and the cooling path is provided with an oil cooler cooling the oil to be supplied to the rotating electric machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.