Fuel cell stack having bent section flow passage grooves
US6528196B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2000 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Aug 25, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
First gas flow passage grooves which communicate with an oxygen-containing gas inlet, and second gas flow passage grooves into which the first gas flow passage grooves are merged and which communicate with an oxygen-containing gas outlet are provided on a surface of a first separator. First communication passages and second communication passages for enabling the air to flow therethrough are provided at first and second bent sections of the first gas flow passage grooves and the second gas flow passage grooves. Accordingly, when the air flowing in the surface of the separator is bent over, then the flow rate of the air is not partially lowered, and it is possible to reliably remove produced water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.