Fuel cell system and shutdown method of the same
US8067123B2 · kind B2 · utility
2Cited by
0References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2008 |
| Grant date | Nov 29, 2011 |
| Priority date | — |
| Expiry date | Jul 19, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
At shutdown of a fuel cell system, a system-shutdown controller is configured to cause a current extraction device to extract current from a fuel cell in a state where a supply of a fuel gas through a fuel supply system is continued and a supply of an oxidant gas through an oxidant supply system is stopped, and the system-shutdown controller is configured to airtightly close fresh-air control valves after increasing pressure of the fuel gas in a fuel electrode to not less than atmospheric pressure and not less than pressure of the oxidant gas in an oxidant electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.