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:
Feb. 22, 2011
Filed:
Jun. 15, 2006
Partho Sarkar, Edmonton, CA;
Hongsang Rho, Edmonton, CA;
Luis Yamarte, Edmonton, CA;
Gary Kovacik, Edmonton, CA;
Partho Sarkar, Edmonton, CA;
Hongsang Rho, Edmonton, CA;
Luis Yamarte, Edmonton, CA;
Gary Kovacik, Edmonton, CA;
Alberta Innovates - Technology Futures, Edmonton, Alberta, CA;
Abstract
This invention relates to a fuel cell system comprising a fuel cell stack and a heat exchanger wrapped around the stack. The fuel cell stack comprises a fuel cell that operates at high elevated temperatures, such as a solid oxide fuel cell; the fuel cell can have a tubular configuration and comprise a pair of concentrically arranged electrode layers sandwiching a concentrically arranged electrolyte layer. The heat exchanger wraps around the fuel cell stack and comprises a flexible, thermally conductive first layer and an overlapping flexible, thermally conductive second layer spaced from the first layer. The first and second layers define adjacent annular oxidant supply and oxidant exhaust channels when wrapped around the stack. The exhaust channel is communicative with heated exhaust oxidant flowing from the stack, and the oxidant supply channel is communicative with supply oxidant that flows to the stack and is heated by heated exhaust oxidant in the adjacent oxidant exhaust channel and from heat radiating from the stack.