System and method for recirculating unused fuel in fuel cell application
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United States of America Patent
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May 17, 2011
Grant Date -
Feb 5, 2009
app pub date -
Jul 31, 2007
filing date -
Jul 31, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A system and method for delivering an input fluid stream through a fuel cell stack and discharge an unused fluid stream is provided. An inlet of the fuel cell stack is adapted to receive the fluid stream. An ejector is configured to combine the supply fluid stream and the unused fluid stream to generate the input fluid stream and control the flow of the input fluid stream to the fuel cell stack. A blower is configured to control the flow of the unused fluid stream to the ejector. A bypass valve is configured to control the flow of the unused fluid stream to the blower and to the ejector.
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