Fuel cell system and aircraft having an inerting system
US-2024379984-A1 · Nov 14, 2024 · US
Fuel cell system
US2023253586A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2023253586-A1 |
| Application number | US-202318104413-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 1, 2023 |
| Priority date | Feb 7, 2022 |
| Publication date | Aug 10, 2023 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A fuel cell system executes a first valve drive operation by causing a power supply unit to output the first voltage to drive an electric-operated valve to open at a time of starting power generation by a fuel cell stack, and executes a second valve drive operation by causing the power supply unit to output the second voltage to drive the electric-operated valve to open in a case where the electric-operated valve is in a closed state even after execution of the first valve drive operation.
First claim
Opening claim text (preview).
1 . A fuel cell system comprising: a fuel cell stack configured to generate power by electrochemical reactions between a fuel gas and an oxygen-containing gas; an oxygen-containing gas supply flow path configured to supply the oxygen-containing gas to the fuel cell stack; an electric-operated valve disposed on the oxygen-containing gas supply flow path; a power supply unit configured to output to the electric-operated valve one of a first voltage and a second voltage higher than the first voltage; a sensor configured to detect an open or closed state of the electric-operated valve; and a controller configured to control the power supply unit, wherein the controller executes a first valve drive operation by causing the power supply unit to output the first voltage to drive the electric-operated valve to open at a time of starting power generation by the fuel cell stack, and executes a second valve drive operation by causing the power supply unit to output the second voltage to drive the electric-operated valve to open in a case where the electric-operated valve is in a closed state even after execution of the first valve drive operation. 2 . The fuel cell system according to claim 1 , wherein the controller executes the first valve drive operation a predetermined number of times until the electric-operated valve is brought into the open state, and executes the second valve drive operation in a case where the electric-operated valve is in the closed state even after the first valve drive operation is executed the predetermined number of times. 3 . The fuel cell system according to claim 2 , wherein the controller executes the second valve drive operation a predetermined number of times until the electric-operated valve is brought into the open state. 4 . The fuel cell system according to claim 1 , wherein the controller is configured to stop power generation by the fuel cell stack in a case where the electric-operated valve is in the closed state even after the second valve drive operation is executed.
Assignees
Inventors
Classifications
- H01M8/04089Primary
of gaseous reactants · CPC title
characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function · CPC title
Fuel cells with polymeric electrolytes · CPC title
Polymeric electrolyte materials · CPC title
- H01M8/04253Primary
Means for solving freezing problems · CPC title
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Frequently asked questions
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- What does patent US2023253586A1 cover?
- A fuel cell system executes a first valve drive operation by causing a power supply unit to output the first voltage to drive an electric-operated valve to open at a time of starting power generation by a fuel cell stack, and executes a second valve drive operation by causing the power supply unit to output the second voltage to drive the electric-operated valve to open in a case where the elec…
- Who is the assignee on this patent?
- Honda Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M8/04089. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Aug 10 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).