Hobiex Generator Catalog

CATALYST SUBSTRATE SPECIFICATIONS Catalyst Substrate Specifications The design substrate contains a number of features to make it a very rugged and reliable substrate for small and medium industrial engines. The metal foils are vacuum brazed directly to each other and to the outer shell to prevent telescoping due to gas pulsations and engine vibrations, and to prevent damage due to thermal expansion stress from the high-temperature operation Brazed high-temperature-resistant steel coils of alternating layers of corrugated and flat strips 100,200,300 or 400 cpsi (cells per square inch) Catalytic materials coated onto the channel surfaces consist of a refractory inorganic oxide, various substances that act as chemical promoters and stabilizers, and a combination of platinum, palladium, and rhodium. Stainless steel band to provide rigidity and protect operators from foil abrasions NOx PM HC CO Relative Emissions 0 20 40 60 80 100 14 +90 212 734 37 31 www.hob ex.com