NO ONE-SIZE-FITS-ALL SOLUTION: Offering a range of modular aftertreatment options key to Deutz diesel engine emissions strategy

摘要

The EU Stage 4/U.S. EPA Tier 4 final emissions legislation are the most stringent engine exhaust emission requirements for nonroad mobile machinery to date. These steps are leading to emissions reductions of up 90% compared to the Tier 3 emissions levels introduced in 2006. Having reduced nitrogen oxide (NO_x) emissions to close to zero levels (400 mg/kWh) for engines larger than 75 hp, the most recent emission legislation is focusing on particulate emissions. This gained additional momentum in June 2012 when the International Agency for Research on Cancer (IARC), part of the World Health Organization (WHO), classified diesel engine exhaust as carcinogenic to humans. Furthermore, in October 2013 the IARC also classified outdoor air pollution and particulate matter as carcinogenic.