Fuel cell system

US8993186B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8993186-B2
Application numberUS-201113161498-A
CountryUS
Kind codeB2
Filing dateJun 16, 2011
Priority dateJun 17, 2010
Publication dateMar 31, 2015
Grant dateMar 31, 2015

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  1. Title

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  2. Abstract

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  4. Key dates

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  5. First independent claim

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Abstract

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A fuel cell system includes a fuel cell, a fuel gas passage, and an oxidant gas passage. The fuel cell includes a solid polymer membrane, a fuel electrode, and an oxidant electrode. A coolant flows into the fuel cell via a coolant passage to adjust a temperature of the fuel cell. An oxidant gas outlet temperature detector is configured to detect an outlet temperature of an oxidant gas discharged from an outlet of the oxidant gas passage. A coolant temperature detector is configured to detect a temperature of the coolant passing through an inlet or an outlet of the coolant passage. A dry-up controller is configured to decide that the solid polymer membrane is in a dry-up state when a temperature difference between the temperature of the coolant and the outlet temperature of the oxidant gas exceeds a first threshold value.

First claim

Opening claim text (preview).

What is claimed is: 1. A fuel cell system comprising: a fuel cell to generate electric power using a fuel gas and an oxidant gas supplied to the fuel cell, the fuel cell comprising: a solid polymer membrane; a fuel electrode; and an oxidant electrode; a fuel gas passage through which the fuel gas passes along the fuel electrode in the fuel cell; an oxidant gas passage through which the oxidant gas passes along the oxidant electrode in the fuel cell; a coolant passage…

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What does patent US8993186B2 cover?
A fuel cell system includes a fuel cell, a fuel gas passage, and an oxidant gas passage. The fuel cell includes a solid polymer membrane, a fuel electrode, and an oxidant electrode. A coolant flows into the fuel cell via a coolant passage to adjust a temperature of the fuel cell. An oxidant gas outlet temperature detector is configured to detect an outlet temperature of an oxidant gas discharge…
Who is the assignee on this patent?
Furusawa Koichiro, Katagiri Toshikatsu, Ando Akiji, and 2 more
What technology area does this patent fall under?
Primary CPC classification H01M8/0435. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).