The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 17, 2006
Filed:
Jul. 22, 2003
Thomas M. Clark, Suffield, CT (US);
Paul R. Margiott, South Windsor, CT (US);
Albert P. Grasso, Vernon, CT (US);
Richard D. Breault, North Kingstown, RI (US);
Leslie L. Van Dine, Manchester, CT (US);
Margaret M. Steinbugler, East Windsor, CT (US);
Edward J. Bludnicki, Wallingford, CT (US);
Thomas M. Clark, Suffield, CT (US);
Paul R. Margiott, South Windsor, CT (US);
Albert P. Grasso, Vernon, CT (US);
Richard D. Breault, North Kingstown, RI (US);
Leslie L. Van Dine, Manchester, CT (US);
Margaret M. Steinbugler, East Windsor, CT (US);
Edward J. Bludnicki, Wallingford, CT (US);
UTC Fuel Cells, LLC, South Windsor, CT (US);
Abstract
A fuel cell power plant system includes the ability to operate an enthalpy recovery device even under cold conditions. A bypass arrangement allows for selectively bypassing one or more portions of the enthalpy recovery device under selected conditions. In one example, the enthalpy recovery device is completely bypassed under selected temperature conditions to allow the device to freeze and then later to be used under more favorable temperature conditions. In another example, the enthalpy recovery device is selectively bypassed during a system startup operation. One example includes a heater associated with the enthalpy recovery device. Another example includes preheating oxidant supplied to one portion of the enthalpy recovery device.