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:
Jan. 19, 2010
Filed:
Nov. 28, 2005
Keigo Suematsu, Susono, JP;
Tatsuaki Yokoyama, Susono, JP;
Kenji Umayahara, Nishikamo-gun, JP;
Nobuhiro Tomosada, Kodaira, JP;
Keigo Suematsu, Susono, JP;
Tatsuaki Yokoyama, Susono, JP;
Kenji Umayahara, Nishikamo-gun, JP;
Nobuhiro Tomosada, Kodaira, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
In a fuel cell system (), the amount of fuel gas supplied through an fuel gas supply passage () and the amount of fuel gas consumed by a fuel cell () are detected. A difference between the amount of supplied fuel gas and the amount of consumed fuel gas is calculated by subtracting the amount of consumed fuel gas from the amount of supplied fuel gas. The pressure of the fuel gas in a leak detection passage (Cx), the change in the pressure of the detected fuel gas can be detected, and the change in the amount of fuel gas in the gas leak detection passage (Cx) due to the change in the pressure of the fuel gas can thus be detected. The difference is corrected by subtracting the change in the amount of fuel gas in the gas leak detection passage from the difference. When the corrected difference is equal to or greater than a predetermined value, a fuel gas leak is detected in the leak detection passage (Cx).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile