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Surge avoidance and control of a centrifugal compressor in a fuel cell system

  • US 20040161647A1
  • Filed: 02/18/2003
  • Published: 08/19/2004
  • Est. Priority Date: 02/18/2003
  • Status: Abandoned Application
First Claim
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1. A fuel cell system, comprising:

  • a fuel cell stack including an anode flow passage and a cathode flow passage;

    a fuel source connected to said anode flow passage; and

    an oxidant source connected to said cathode flow passage, said oxidant source including a passage including a compressor disposed therein and a recirculation passage connecting an outlet of said compressor with an inlet of said compressor, said recirculation passage including a control valve for opening and closing said recirculation passage.

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