Fuel cell cooled by latent heat of water evaporation
US7153605B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2002 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Sep 26, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fuel cell wherein efficient cooling is achieved by supplying air and cooling water simultaneously while maintaining cooling and wetting of a membrane without increasing the size of the fuel cell. The fuel cell includes a separator sandwiched between unit cells. The separator includes an air passage on a front surface side abutting at least on a cathode of the unit cell and cooling passages supplied with air and water on the rear side thereof to cool the unit cell with latent heat of evaporation of water by heat of the unit cell transmitted to the cooling space. Thereby, the unit cell is cooled via the separator and clogging of the air passages by water is prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.