Patent ID: 7588849
Filing Date: 2009-09-15
Classification: F28D,H01M,Y02E,Y02P,Y02T

Abstract:
1. A fuel cell system having fuel cells tempered externally by burned tail gas exhaust, comprising: a) a plurality of individual fuel cells organized into at least one fuel cell stack assembly including a plurality of cathodes and anodes; b) means for conveying fuel to said anodes and means for returning tail gas fuel from said anodes; c) means for conveying air to said cathodes and means for returning air from said cathodes; d) a tempering jacket space surrounding said fuel cell stack assembly; e) a combustor disposed in said means for returning tail gas fuel for burning said tail gas to produce exhaust gas; f) means for conveying said exhaust gas from said combustor to said tempering jacket space; and g) heat exchange means disposed in both said air conveying means and said exhaust conveying means for heating said air and cooling said exhaust gas.