The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 15, 2012
Filed:
Jan. 31, 2008
Masato Nishikawa, Moriguchi, JP;
Tatsuyuki Nakagawa, Moriguchi, JP;
Hitoshi Kihara, Moriguchi, JP;
SANYO Electric Co., Ltd., Moriguchi, JP;
Abstract
Fuel cell of this invention generates electricity by supplying fuel fluid to one of a pair of electrodes forming an MEA, 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 pathdefined on a surface of the MEAand a drive circuit driving the gas supply device comprising a vibrating plateand a reflection wall on both sides of the flow path, and the drive circuit performs a normal operation control generating gas flow from inlet to outlet of the flow pathdue to sound pressure gradient generated in the flow pathby vibrating the vibrating plateand a foreign material elimination operation control eliminating foreign material in the flow pathby changing a vibration mode of the vibrating plate