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:
Dec. 30, 2008
Filed:
Aug. 14, 2003
James Zizelman, Honeoye Falls, NY (US);
Jean J. Botti, Rochester Hills, MI (US);
John G. Noetzel, Fairport, NY (US);
Subhasish Mukerjee, Rochester, NY (US);
Kaushik Rajashekara, Carmel, IN (US);
James Zizelman, Honeoye Falls, NY (US);
Jean J. Botti, Rochester Hills, MI (US);
John G. Noetzel, Fairport, NY (US);
Subhasish Mukerjee, Rochester, NY (US);
Kaushik Rajashekara, Carmel, IN (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A solid-oxide fuel cell system having a relatively large primary fuel cell sub-assembly for steady-state operation and a relatively small secondary fuel cell sub-assembly which is rapidly heatable to a threshold operating temperature to a) produce usable power in a short time period, b) cascade a hot exhaust into the primary fuel cell sub-assembly to assist in preheating thereof, and c) provide steam into the primary fuel cell sub-assembly to prevent coking of the anodes thereof. As the primary sub-assembly reaches its threshold temperature, it too begins to generate electricity and continues to self-heat and to be heated by the secondary sub-assembly. Preferably, the secondary sub-assembly continues to provide electricity in complement with the primary sub-assembly until the primary sub-assembly reaches full power, at which time the secondary sub-assembly may be shut down or switched to standby status for fuel efficiency, as desired.