SAE technical papers on CD-ROM/SAE technical paper series · 2002 · 14 citations · 9 references
EngineeringAutomotive EngineeringChemical EngineeringAir PollutionCombustionInternal Combustion EnginesDiesel TechnologyEngine DesignEngine EmissionsEngine PerformanceEngine Performance CharacteristicsExhaust SystemsAir Emissions StandardsCompression IgnitionDiesel EnginesEmissions Aftertreatment SystemsEmissions ReductionFuel EfficiencyNitrogen Oxides EmissionsParticulate Matter Emissions
Due to their excellent fuel efficiency, reliability, and durability, compression ignition direct injection (CIDI) engines have been used extensively to power almost all highway trucks, urban buses, off-road vehicles, marine carriers, and industrial equipment.CIDI engines burn 35 to 50% less fuel than gasoline engines of comparable size, and they emit far less greenhouse gases (Carbon Dioxides), which have been implicated in global warming.Although the emissions of CIDI engines have been reduced significantly over the last decade, there remains concern with the Nitrogen Oxides (NO X ) and Particulate Matter (PM) emission levels.In 2000, the US EPA proposed very stringent emissions standards to be introduced in 2007 along with low sulfur (< 15ppm) diesel fuel.The California Air Resource Board (CARB) has also established the principle that future diesel fueled vehicles should meet the same emissions standards as gasoline fueled vehicles and the EPA followed suit with its Tier II emissions regulations.economy.Finally, the direction of future work for continued advanced aftertreatment technology development is discussed.
9