Metal Substrate Based Large Engine Aftertreatment Development Used for Locomotive Application
- 48 Downloads
An advanced aftertreatment system for a locomotive application was successfully demonstrated for the first time in the locomotive industry to reduce NOx from Tier 2 engine out level down to Tier 4 level. Five 3005 horse powered line-haul Progress Rail locomotives were equipped with diesel oxidation catalyst (DOC) and selective catalyst reduction (SCR) technologies to accumulate more than 20,000 h in total on rail track. As Continental and Caterpillar show in the following, the emission performance of the aftertreatment system maintained and did not show any degradation for 3000 h operation.
Large reductions in the emissions from passenger cars and on-road trucks have been made in the past decades, due to the implementation of advanced aftertreatment systems. The regulations for large-bore non-road and locomotive engines on the other hand have largely been met with engine management. With the phase-in of the Environmental Protection Agency (EPA) Tier 4 Final legislation for...
- EPA Final Rule for Locomotive 40 CFR 1033, 2008Google Scholar
- Downey, M.; Pfahl, U.: Advanced Metal Substrate Technology for Large Engine Exhaust Gas Aftertreatment System. ICEF2011-60096, ASME Internal Combustion Engine Division Fall Conference 2011Google Scholar
- Park, P. et al.: Advanced Aftertreatment System Development For A Locomotive Application. ICEF2012- 92918, ASME Internal Combustion Engine Division Fall Conference 2012Google Scholar
- US Patent Application US2011/0146236 A1, June 23, 2011Google Scholar
- Bruestle, C. et al.: Aftertreatment in a Pre-Turbo Position: Size and Fuel Consumption Advantage for Tier 4 Large-Bore Diesel Engines. 20th Aachen Colloquium Automobile and Engine Technology, 2011Google Scholar
- Althoefer, K.; Nagel, T.: Metallkatalysatoren — Bauteil- und Schadensanalyse im Fokus innovativer Designentwicklung. VDI, 2007Google Scholar
- Kramer, J. et. al.: A new approach of accelerated life testing for metallic catalytic converters. SAE 2004-01-0595, SAE World Congress 2004Google Scholar