Method to detect no coolant flow in a fuel cell system
US8389170B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Apr 5, 2010 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Jun 3, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for determining whether a fuel cell stack cooling fluid is flowing at cold fuel cell system start-up. The method monitors the temperature of the cooling fluid outside of the fuel cell stack, and determines whether the temperature of the cooling fluid is increasing properly as the temperature of the stack increases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.