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:
Aug. 08, 2006
Filed:
Jul. 02, 2002
Takuya Sugino, Hiki-gun, JP;
Jun Suzuki, Saitama, JP;
Nobutaka Nakajima, Utsunomiya, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention relates to a fuel cell operation method in which a fuel cellthat generates power using hydrogen gas and oxidant gas as reaction gas is operated at an operating pressure that corresponds to a required power generation state. A hydrogen sensorthat detects hydrogen density is provided in a vicinity of the fuel cell, and based on values detected by the hydrogen sensorand on the amount of hydrogen leakage at the current operating pressure and on the characteristics of the fuel cell, an operating pressure is predicted at which the hydrogen leakage amount from the fuel cell will not exceed a predetermined value, and the fuel cellis operated while limiting the operating pressure to below the predicted operating pressure.