Technologies of emissions control for NOx and PM on diesel engine

With the increasingly serious problems of environmental pollution, the technologies of diesel engine are confronted with great challenges on reducing emissions to meet stringent emission legislations. As the major pollutants emitted by diesel engines, it becomes a very important issue to reduce the amount of NOx and PM. Based on pre-treatment and post-treatment principles, the paper mainly introduces several technologies to reduce the emissions of NOx and PM. These technologies include CO₂ in-cylinder injection, using oxygenated fuels, NIS and MK et al.