Internal combustion engines produce a number of emissions including oxides of nitrogen, NOx. One manner of reducing NOx production used in gas turbine engines is through the use of catalytic reactors. Catalytic reactors reduce the ignition temperatures required for complete combustion of a fuel air mixture....http://www.google.com/patents/US6669914?utm_source=gb-gplus-sharePatent US6669914 - Internal combustion engine having a catalytic reactor
