Method for detecting the sealed state of a fuel cell
US9269972B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Oct 27, 2010 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | Dec 6, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Procedure for detecting the sealing state of a fuel cell stack in which, as soon as the fuel cell stack is considered to be extinguished, the sum of the pressures in the anode circuit and in the cathode circuit equal to P1 is recorded. After an additional period of time of 180 seconds, the sum of the pressures in the anode circuit and in the cathode circuit equal to P2 is recorded. If P2 is less than P1, an alarm is triggered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.