Reduction of pressure variation with stamped embossment at bead neighbors
US10211473B2 · kind B2 · utility
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18Claims
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Assignee
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Key dates
| Filing date | Nov 21, 2016 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Jan 30, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fuel cell flow field plate providing a uniform gas flow pressure includes a first metal plate and a second metal plate. The first metal plate defines a first opening for providing a first reactant gas to a fuel cell with a first metal bead that surrounds the first opening. The first metal bead is an embossment in the second metal plate that defines a first channel. The first metal plate also defines a first pressure distributing structure that decreases pressure variation is a seal formed with the first metal bead. A second metal plate aligns with the first metal plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.