Fuel cell and method of purging a fuel cell
Patent 4537839 Issued on August 27, 1985. Estimated Expiration Date: 
November 16, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 16, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesPressurized fuel cell power plant Pressurized high temperature fuel cell power plant with bottoming cycle Fuel cell power plant and method for operating the same Patent #: 4128700 InventorAssigneeApplicationNo. 06/552099 filed on 11/16/1983US Classes:429/20, By heating or cooling429/26, Having heat exchange means429/34, Housing member, seal, spacer or fluid distributing or directing means429/40Catalytic electrode structure or compositionExaminersPrimary: Skapars, AnthonyAttorney, Agent or FirmInternational ClassH01M 8/04 (20060101)Foreign Application Priority Data1982-11-23 GBAbstractA fuel cell may be purged with inert gas and/or pre-heated and/or maintained at an elevated temperature by combusting the hydrogen fuel with air and passing the combustion product gases either through the cell or through a heat exchanger for imparting heat either to the electrolyte or to the fuel gases. Preferably the combustor includes a catalyst. The hydrogen can either be taken directly from the fuel supply or the "waste" hydrogen periodically bled from the cell can be used. If the product gases are to be passed into the cell, the stoichiometry of the combustion should be controlled so that hydrogen is absent.Field of SearchFUEL CELL, SUBCOMBINATION THEREOF OR METHODS OF OPERATINGHaving means for active material generation or regeneration By heating or cooling Having heat exchange means Catalytic electrode structure or composition Having an inorganic matrix, substrate or support Housing member, seal, spacer or fluid distributing or directing means |
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