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:
Aug. 14, 2012
Filed:
Oct. 18, 2007
Nobuo Fujita, Toyota, JP;
Nobuo Fujita, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A fuel cell system comprises a fuel gas supply conduit which supplies fuel gas to a fuel cell, a circulation conduit which returns discharged fuel gas discharged from the fuel cell to the fuel gas supply conduit, and a control device. When the control device determines that freezing may occur, the control device releases the discharged fuel gas from a water discharge valve of a gas-liquid separator provided in the circulation conduit to the outside, and reduces the flow volume of the discharged fuel gas returned to the fuel gas supply conduit in order to reduce moisture contained in the gas. Consequently, freezing can be prevented using a simple structure.