Enhanced spray cooling technique for wedge cooling
US8760014B2 · kind B2 · utility
7Cited by
9References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 13, 2011 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Jul 11, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/197
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wedge cooling apparatus and method for cooling a rotating machine, such as a generator, disperses a spray of cooling fluid into the wedges of the generator. The spray cooling method results in a high heat transfer coefficient of about 2000-3000 W/m2C as opposed to conventional conduction cooling, which has a heat transfer coefficient of about 200-300 W/m2C. The apparatus and method of the present invention efficiently removes heat from high powered, high current density designed generators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.