Blocking device for the recirculation loop in a fuel cell stack
US-2024186540-A1 · Jun 6, 2024 · US
Fuel cell system with energy-efficient reactant recycling
US9048467B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9048467-B2 |
| Application number | US-200913129288-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 30, 2009 |
| Priority date | Nov 14, 2008 |
| Publication date | Jun 2, 2015 |
| Grant date | Jun 2, 2015 |
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- Title
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Abstract
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The invention relates to a fuel cell system with at least one fuel cell for electrochemical conversion of two reactants. The fuel cell has two electrode areas, having a first supply line for supplying a first reactant to a first electrode area, and an outlet line, for emission of residual gas from the first electrode area. The residual gas has an electrochemically unconsumed portion of the first reactant, a recirculation element, for feeding the residual gas from the outlet line into the first supply line, and an outlet valve in order to emit the residual gas into an area surrounding the fuel cell system. The invention provides for the fuel cell system to have a monitoring unit in order to control the outlet valve. In particular, the monitoring unit opens the outlet valve when the energy required to feed the residual gas by the recirculation element exceeds an energy potential of the first reactant which is present in the residual gas.
First claim
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The invention claimed is: 1. A fuel cell system, having at least one fuel cell for electrochemical conversion of reactants, in which the fuel cell has two electrode chambers, comprising: a first supply line, for supplying a first reactant into a first electrode chamber; an outlet line, for diverting a residual gas from the first electrode chamber, the residual gas having an electrochemically unused portion of the first reactant; a recirculation element, for delivering the resi…
Assignees
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Cross-Sectional Technologies · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H01M8/04097Primary
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9048467B2 cover?
- The invention relates to a fuel cell system with at least one fuel cell for electrochemical conversion of two reactants. The fuel cell has two electrode areas, having a first supply line for supplying a first reactant to a first electrode area, and an outlet line, for emission of residual gas from the first electrode area. The residual gas has an electrochemically unconsumed portion of the firs…
- Who is the assignee on this patent?
- Gottwick Ulrich, Intorp Jens, Zirkel Daniel, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification H01M8/04097. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 02 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).