Method and device for operating a fuel cell system
US5856034A · kind A · utility
15Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1997 |
| Grant date | Jan 5, 1999 |
| Priority date | — |
| Expiry date | Apr 8, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention provides a method and apparatus for controlling gas circulation in a fuel cell system in which a stack of fuel cells is surrounded by a protective housing. According to the invention, used cathode gas and burnt combustion gas from the fuel cell stack directly into the interior of a protective housing which surrounds the fuel cell stack. A blower which is arranged inside the housing causes the used cathode gas to mix with the burnt combustion gas and recirculate to the cathode input of the fuel cell stack, where it is further with fresh gas from the exterior.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.