Modification to stampable flowfields to improve flow distribution in the channels of PEM fuel cells
US9065088B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | May 11, 2010 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Feb 4, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fuel cell device includes a plurality of channels that have at least one unrestricted inlet, a conduit for directing a flow having a distribution pattern to the unrestricted inlet, and a gap region between the conduit and the plurality of channels for receiving the flow distribution pattern, the gap region having such dimensions in which the distribution pattern tends to normalize within the gap region so that flow to each of the unrestricted inlets tends to normalize across said gap region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.