Electric machine cooling system and method
US8659190B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2011 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Jun 20, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/276
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Embodiments of the invention provide an electric machine module including a housing defining a machine cavity. In some embodiments, an electric machine can be positioned within the machine cavity and include a rotor hub coupled to rotor laminations. The rotor hub can include first and second axial ends and the rotor laminations can include a recess. In some embodiments, the recesses can be aligned to define a portion of a plurality of coolant channels that can be in fluid communication with the machine cavity. In some embodiments, the rotor hub can include first and second rotor hub inlets in fluid communication with at least a portion of the coolant channels. The first and the second rotor hub inlets can be adjacent to the axial ends of the rotor hub. In some embodiments, the coolant channels are in fluid communication with the rotor hub inlets are not the same coolant channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.