Cooling system for motor
US9712021B2 · kind B2 · utility
3Cited by
3References
7Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 13, 2013 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | May 27, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/193
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a vertical through hole of a rotational shaft, a first protrusion portion and a second protrusion portion protruding from an inner peripheral surface of the vertical through hole are provided in an axial direction of the through hole to form a storage area for storing oil, and discharge holes for directly discharging oil flowing over the first protrusion portion into the transaxle casing are provided in parallel with cooling holes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.