Fuel cell
US8178255B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2008 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Feb 9, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Fuel cell of this invention generates electricity by supplying fuel fluid to one of a pair of electrodes forming an MEA 1, supplying oxidation fluid to the other electrode, at least one of the fuel and oxidation fluids being gas, comprising a gas supply device transferring the gas along a flow path 10 defined on a surface of the MEA 1 and a drive circuit driving the gas supply device comprising a vibrating plate 4 and a reflection wall on both sides of the flow path 10, and the drive circuit performs a normal operation control generating gas flow from inlet to outlet of the flow path 10 due to sound pressure gradient generated in the flow path 10 by vibrating the vibrating plate 4 and a foreign material elimination operation control eliminating foreign material in the flow path 10 by changing a vibration mode of the vibrating plate 4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.