Operation method and purging system for a hydrogen demand/delivery unit in a fuel cell system
US7354669B2 · kind B2 · utility
9Cited by
2References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2004 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | Aug 10, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention pertains to a process for preventing the freezing of water in a structural component containing at least one moving part in the anode cycle of a fuel cell system, characterized by the fact that at the time of a switching-off process the structural component is scavenged by a dry scavenging gas in order to remove a quantity of water present there.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.