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The term non-road mobile machinery (NRMM) is a term used in the European emission standards to control emissions of engines that are not used primarily on public roadways. This definition includes off-road vehicles as well as railway vehicles .
For 2005 model year heavy-duty engines, the NTE emission cap for NMHC plus NOx is 1.25 times 2.5 grams per brake horsepower-hour, or 3.125 grams per brake horsepower-hour. The basic NTE control area for diesel engines has three basic boundaries on the engine's torque and speed map.
Vehicle emissions control is the study of reducing the emissions produced by motor vehicles, especially internal combustion engines.The primary emissions studied include hydrocarbons, volatile organic compounds, carbon monoxide, carbon dioxide, nitrogen oxides, particulate matter, and sulfur oxides.
Emissions from all non-road engines are regulated by categories. [49] In the United States, the emission standards for non-road diesel engines are published in the US Code of Federal Regulations, Title 40, Part 89 (40 CFR Part 89). Tier 1–3 Standards were adopted in 1994 and was phased in between 1996 and 2000 for engines over 37 kW (50 hp ...
Diesel exhaust fluid (DEF; also known as AUS 32 and sometimes marketed as AdBlue [3]) is a liquid used to reduce the amount of air pollution created by a diesel engine. Specifically, DEF is an aqueous urea solution made with 32.5% urea and 67.5% deionized water .
The mechanical fly-weight governors of inline and distributor diesel fuel injection pumps used to control fuel delivery in diesel engines under a variety of engine loads and conditions could no longer deal with the ever-increasing demands for efficiency, emission control, power and fuel consumption. These demands are now primarily fulfilled by ...
Engine run time for Auxiliary Emissions Control Device(AECD) 82: 130: 41 Engine run time for Auxiliary Emissions Control Device(AECD) 83: 131: 9 NOx sensor 84: 132: 1 Manifold surface temperature 85: 133: 10 NOx reagent system % 86: 134: 5 Particulate matter (PM) sensor 87: 135: 5 Intake manifold absolute pressure 88: 136: 13
Table 5: Emission standards for light-duty diesel engines, g/kWh Year Reference CO HC NO x PM 1992 – 14.0 3.5 18.0 – 1996 – 11.20 2.40 14.4 – 2000 Euro I 4.5 1.1 8.0 0.36* 2005† Euro II 4.0 1.1 7.0 0.15 * 0.612 for engines below 85 kW † Earlier introduction in selected regions, see Table 1.