Search Results

Since diesel engines have higher thermal efficiency, superior power capability and better fuel economy than gasoline engines, diesel engines are widely used in vehicles, construction machineries and agricultural machineries. However, they emit more hazardous pollutants than gasoline engines, especially particulate emissions, which have negative impacts on human’s health and air quality in cities. In order to meet future increasingly stringent regulations for particulate emissions, exhaust gas aftertreatment technologies for diesel engines are essential. Particulate emissions from a heavy-duty diesel engine which meets the China national V emission regulation were studied, and the engine was equipped with/without diesel oxidation catalyst (DOC), catalyzed diesel particulate filter (CDPF) and selective catalytic reduction (SCR). The fuel used in this article is ultra low sulfur diesel fuel whose sulfur content is less than 10 ppm.