Separator including tilted gas flow path grooves that retain water by capillary force and fuel cell using the same
US10164266B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2014 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | May 10, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A separator to be used in a fuel cell includes a gas flow path including a plurality of gas flow path grooves that allow reactive gas to flow; a gas discharge hole used for discharging the reactive gas from the gas flow path; and an outlet flow path part positioned between the gas discharge hole and the gas flow path and used for flowing the reactive gas discharged from the gas flow path into the gas discharge hole. The plurality of gas flow path grooves includes a coupling flow path part coupled to the outlet flow path part. The coupling flow path part includes tilted gas flow path grooves tilted from a direction of gravitational force. A groove width of the tilted gas flow path groove in the coupling flow path part is set such that a force of a wall surface of the tilted gas flow path groove to retain water by means of a surface tension of the water is larger than a force applied to the water by the gravitational force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.