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Readying cooling circuits for use in fuel cells

  • US 7,655,098 B2
  • Filed: 11/25/2006
  • Issued: 02/02/2010
  • Est. Priority Date: 10/14/2003
  • Status: Active Grant
First Claim
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1. Apparatus for cleansing a fuel cell cooling circuit, comprising:

  • a flushing system connected to the fuel cell cooling circuit for flushing the cooling circuit of contaminants, said cooling circuit comprising a particulate filter and a deionization filter for removing contaminants from a first coolant flowing to the fuel cell; and

    ,the flushing system including a supply of second coolant, a filtering system for removing contaminants from the second coolant flowing through the flushing system to the fuel cell cooling circuit, and a pump for circulating a volume of the second coolant between the cooling circuit and the flushing system, said cooling circuit comprising a bypass system for causing the flow of said second coolant to selectively bypass the cooling circuit de-ionization filter wherein the filtering system includes a particulate filter and a de-ionization filter.

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