Shutdown procedure to improve startup at sub-freezing temperatures
US6864000B2 · kind B2 · utility
2Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2002 |
| Grant date | Mar 8, 2005 |
| Priority date | — |
| Expiry date | Jun 30, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for shutting down a fuel cell system including a plurality of fuel cells arranged in a stack, includes cooling the fuel cells to a shutdown temperature while maintaining a substantially uniform water vapor pressure through the fuel cells whereby migration of water within the fuel cells during cooling is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.