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:
Sep. 29, 2015
Filed:
May. 24, 2005
Norimasa Ishikawa, Toyota, JP;
Naoki Kanie, Toyota, JP;
Norimasa Ishikawa, Toyota, JP;
Naoki Kanie, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A failure diagnostic device for accurately determining a failure of a discharge valve. A failure diagnostic device () serves to perform failure diagnostic of a discharge valve () installed in a discharge flow channel () of an anode discharge gas that is discharged from a fuel cell stack (). The device comprises a detection unit () for detecting a status quantity of the anode discharge gas between a discharge port () for the anode discharge gas of the fuel cells tack () and the discharge valve () and a determination unit () for determining a failure of the discharge valve () based on the status quantity of the anode discharge gas detected by the detection unit () and a failure determination quantity corresponding to the operating state of the fuel cell stack ().