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:
Nov. 26, 2013
Filed:
May. 27, 2010
Katsuhisa Tsuchiya, Kitakyushu, JP;
Tsukasa Shigezumi, Kitakyushu, JP;
Toshiharu Ooe, Kitakyushu, JP;
Kiyotaka Nakano, Kitakyushu, JP;
Yoshiyuki Kawamura, Kitakyushu, JP;
Katsuhisa Tsuchiya, Kitakyushu, JP;
Tsukasa Shigezumi, Kitakyushu, JP;
Toshiharu Ooe, Kitakyushu, JP;
Kiyotaka Nakano, Kitakyushu, JP;
Yoshiyuki Kawamura, Kitakyushu, JP;
Toto Ltd., Kitakyushu-Shi, Fukuoka, JP;
Abstract
A solid oxide fuel cell (SOFC) device comprises a fuel cell assembly, a reformer, a fuel gas supply device, a reforming air supply device, a power generating air supply device, an ignition device, a temperature detection devices for detecting the temperature caused by combustion of fuel gas, and a control section for sequentially conducting a combustion operation in which fuel gas is ignited by the ignition device and combusted using the power generating air, a POX operation, an ATR operation, and an SR combination, wherein the control section determines that a flameout has occurred when the amount by which the temperature caused by combustion of fuel gas and detected by the temperature detection device drops within a predetermined time is equal to or greater than a preset, predetermined temperature drop threshold, and the predetermined temperature drop threshold is set as a plurality of predetermined temperature drop thresholds in accordance with temperature bands caused by the combustion of fuel gas, the lower the temperature induced by the combustion of fuel gas, the higher is the temperature drop threshold.