Separator of fuel cell
US8012645B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 17, 2006 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Aug 5, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A differential pressure in a boundary portion between a streaked or linear fluid channel formed of a plurality of convex and concave portions disposed adjacent to one another in an undulated manner and a distribution channel for distributing a reactant gas or cooling water to be introduced into the plurality of fluid channels is reduced. In a structure of a separator of a fuel cell having a structure including streaked fluid channels formed of adjacent convex and concave portions formed on the surface of the separator, and a distribution channel which distributes, to these fluid channels, a fluid to be introduced into the fluid channels, in a boundary portion between the linear fluid channel and the distribution channel, a position of a terminal end of the convex portion constituting the fluid channel and a position of a terminal end of the concave portion are displaced in a streak direction of the fluid channel. It is preferable that the terminal end of the concave portion is positioned closer to the distribution channel than the terminal end of the convex portion. It is also preferable that the separator has a structure of such a type that front and back surfaces are integrated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.