Fuel cell system and fuel cell system diagnosis method

US9178231B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9178231-B2
Application numberUS-201113993953-A
CountryUS
Kind codeB2
Filing dateDec 16, 2011
Priority dateDec 20, 2010
Publication dateNov 3, 2015
Grant dateNov 3, 2015

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  1. Title

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  2. Abstract

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  5. First independent claim

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  7. Citations and related patents

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Abstract

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A system has: a stack having anodes supplied with anode fluid and cathodes supplied with cathode fluid; an evaporating portion generating steam by evaporating water; a water deliverer delivering the water to the evaporating portion; and a reforming portion producing the anode fluid through steam-reforming on fuel using the steam generated by the evaporating portion. A controller executes a determination process that determines whether an open circuit voltage of the stack increases while the water is temporarily fed to the evaporating portion, when the stack is restarted from a state where power generation of the stack is suspended but the temperature of the evaporating portion is a reference temperature being capable of generating steam, and if the open circuit voltage has increased or is on an increase, the controller executes a restart process for resuming the power generation of the stack.

First claim

Opening claim text (preview).

The invention claimed is: 1. A fuel cell system comprising: a stack of fuel cells each having an anode to which an anode fluid is fed and a cathode to which a cathode fluid is fed; a steam generation system that is provided with an evaporating portion for generating a steam by evaporating a water and a water feed passage having a water deliverer for delivering the water to the evaporating portion; a reforming portion that produces the anode fluid by performing steam-reforming…

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What does patent US9178231B2 cover?
A system has: a stack having anodes supplied with anode fluid and cathodes supplied with cathode fluid; an evaporating portion generating steam by evaporating water; a water deliverer delivering the water to the evaporating portion; and a reforming portion producing the anode fluid through steam-reforming on fuel using the steam generated by the evaporating portion. A controller executes a dete…
Who is the assignee on this patent?
Horiuchi Kouichiro, Toyota Motor Co Ltd
What technology area does this patent fall under?
Primary CPC classification H01M8/04298. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Nov 03 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).