Learn How the Purifilter Diesel Particulate Filter Works
Mar 27, 2009 | Categories: Company News The Purifilter contains a silicon carbide filter substrate, formed in a honeycomb design; alternating cells are open on one end and plugged at the outlet end. As the exhaust flows through the open inlet cells, it’s forced through the micro-porous walls to the outlet cells, which filter the particulate matter from the exhaust.
During a regular duty cycle, exhaust temperatures burn the soot and the catalyzed filter oxidizes more than 90 percent of carbon monoxide and hydrocarbons.
As silicon carbide filter substrates possess higher thermal conductivity than other traditional ceramics such as cordierite, they can better handle extreme temperature variations that might occur in retrofit applications. Silicon carbide also has an extremely low chemical reactivity with lube ash and fuel additives and a superior noise dampening capability comparable to high-grade mufflers.
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