Fuel cell system and method for operating the same
US8663858B2 · kind B2 · utility
0Cited by
0References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2008 |
| Grant date | Mar 4, 2014 |
| Priority date | — |
| Expiry date | Aug 12, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fuel cell system which prevents the deterioration of the fuel cell stack when feeding of the oxidant gas is paused under a load to perform a fuel conservation operation. Controller shuts down oxidant gas compressor and cooling water circulating pump to execute fuel conservation operation at a low fuel cell system load. The controller gives a current draw instruction to electric power controller. In the fuel conservation operation, electric power controller draws a current larger than zero from fuel cell stack, and keeps the total charge drawn per unit time constant or substantially constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.