Methods and controls for hydrogen to cathode inlet of a fuel cell system
US8603690B2 · kind B2 · utility
1Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2008 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Jul 12, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system and method for quickly heating a fuel cell stack at fuel cell system start-up. The fuel cell system includes a three-way valve positioned in the anode exhaust that selectively directs the anode exhaust gases to the cathode input of the fuel cell stack so that hydrogen in the anode exhaust gas can be used to heat the fuel cell stack. During normal operation when the fuel cell stack is at the desired temperature, the three-way valve in the anode exhaust can be used to bleed nitrogen to the cathode exhaust.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.