Rotary electric machine having gas coolers
US10404138B2 · kind B2 · utility
1Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2014 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Nov 15, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Gas coolers one of which is housed in a gas cooler chamber provided at an upper portion of a casing and installed near an opening of the casing above each stator coil end, are provided. A gas circulation passage is formed in which a cooling gas circulates through a space A provided at an intake side of each fan→a space B surrounding the fan→the gas cooler chamber→the gas cooler→a space C including the stator coil end→a gap between a rotor and a stator and gas passages formed in the rotor and the stator→a space D between an outer periphery of the stator and the casing→the space A.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.