Development of a Full-Flow Burner DPF System for Heavy Duty Diesel Engines 2002-01-2787
Increasingly stringent emission limits for commercial vehicles in the EU as of 2005 will most probably require exhaust gas aftertreatment. Particulate traps are one possible route. They are set to become a widespread treatment for the control of PM emissions from diesels due to the continuing concern over the health effects. No other technology can achieve comparable levels of efficiency in removing PM.
However, reliable particulate trap regeneration under all possible driving conditions presents a problem that has not been solved satisfactorily yet.
Especially with vehicles that are being operated in urban areas in stop & go mode (buses, delivery vans, garbage collectors), the problem arises that exhaust gas temperatures are not high enough to regenerate the filter via passive measures.
One remedy would be to integrate an active regeneration system, e.g. a full-flow burner, which is presented in this paper.