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:
Feb. 07, 2017
Filed:
Nov. 30, 2011
Takashi Ono, Kirishima, JP;
Takashi Shigehisa, Kirishima, JP;
Eizou Matsui, Kirishima, JP;
Shinpei Shiraishi, Kirishima, JP;
Takashi Ono, Kirishima, JP;
Takashi Shigehisa, Kirishima, JP;
Eizou Matsui, Kirishima, JP;
Shinpei Shiraishi, Kirishima, JP;
KYOCERA CORPORATION, Kyoto, JP;
Abstract
A fuel cell system includes a fuel cell that generates electric power using fuel gas and oxygen-containing gas and combusts fuel gas remaining unused for generation of electric power; a fuel gas supply line that supplies the fuel gas to the fuel cell; and an on-off valve disposed in the fuel gas supply line. A shutdown transition mode in which the fuel gas in the fuel gas supply line downstream from the on-off valve is supplied to the fuel cell at a flow rate smaller than that at a time of generation of electric power and is combusted therein after the on-off valve is closed, and a shutdown mode which is started after the shutdown transition mode are provided as an emergency shutdown mode in which the fuel cell undergoes emergency shutdown when the on-off valve of the fuel gas supply line is closed.