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. 06, 2015
Filed:
May. 19, 2009
Tomoyoshi Kobayashi, Toyota, JP;
Tomoyoshi Kobayashi, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-Shi, JP;
Abstract
A fuel cell system including an ejector that merges a hydrogen gas to be supplied from a hydrogen tank to a fuel cell with a hydrogen-off gas exhausted from the fuel cell and supplies the resulting gases to the fuel cell. A hydrogen pump that pressurizes the hydrogen-off gas in a hydrogen circulation flow path and sends the hydrogen-off gas toward a hydrogen supply flow path and a control unit that controls, when the pressure of the hydrogen-off gas in the hydrogen circulation flow path is increased by the ejector and the hydrogen pump, the pressure of the hydrogen gas to be supplied to the ejector and the pressure increase of the hydrogen-off gas realized by the hydrogen pump so that the pressure increase of the hydrogen-off gas realized by the ejector is 0 or higher.