Power transmission device, motor unit, and vehicle
US12049952B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2021 |
| Grant date | Jul 30, 2024 |
| Priority date | — |
| Expiry date | Dec 20, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2057/0216
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gear portion of a power transmission device is connected to one side in an axial direction of a first shaft rotatable about a first axis extending along a horizontal direction. The first shaft is supported by a first bearing. The gear portion includes a second shaft rotatable about a second axis below the first axis. A lubricant is provided in a first bearing holding portion of the first bearing. A gear housing that houses the gear portion includes an oil passage below the first bearing. A first end of the oil passage is connected to the first bearing holding portion through the first bearing. A second end of the oil passage is connected to a second bearing holding portion of a second bearing that supports the second shaft through an opening below the first bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.