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:
Apr. 13, 2010
Filed:
Nov. 23, 2005
Daishi Igarashi, Saitama-ken, JP;
Kenichiro Ueda, Saitama-ken, JP;
Junji Uehara, Saitama-ken, JP;
Koichiro Miyata, Saitama-ken, JP;
Shinji Yoshikawa, Saitama-ken, JP;
Daishi Igarashi, Saitama-ken, JP;
Kenichiro Ueda, Saitama-ken, JP;
Junji Uehara, Saitama-ken, JP;
Koichiro Miyata, Saitama-ken, JP;
Shinji Yoshikawa, Saitama-ken, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A fuel cell system includes a fuel cell having a fuel gas flow path and an oxidant gas flow path; a compressor for supplying humidified air to the oxidant gas flow path; a back-pressure regulating valve for controlling pressure of humidified air in the oxidant gas flow path; a pressure sensor for measuring the pressure of the humidified air in the oxidant gas flow path; and a control section for controlling the compressor and the back-pressure regulating valve. In this system, the pressure of humidified air in the oxidant gas flow path is regulated to become equal or approximate to a target pressure by the back-pressure regulating valve. When the pressure difference between the pressure measured by the pressure sensor and the target pressure is larger than a predetermined pressure difference, the control section corrects operating conditions of the compressor, so that the measured pressure becomes the target pressure.