非道路柴油机欧ⅢB排放方案设计及试验研究  

Scheme Design and Experimental Study of Non-road Diesel Engine to Meet Euro ⅢB Emission Regulation

作　　者：吉俊蓉 杨卫平[1] 宋玉平[1] 酒建刚[1] 王岗[1] 刘西文[1] 李志丹[1] 

机构地区：[1]中国一拖集团有限公司,河南洛阳471004

出　　处：《拖拉机与农用运输车》2017年第4期38-40,45,共4页Tractor & Farm Transporter

摘　　要：以非道路YD4N柴油机为例,首先进行原机性能参数调整和优化燃烧技术参数,然后在"电控高压共轨系统+SCR后处理系统"技术路线下,进行排放后处理试验研究。试验结果表明,高压喷射可以使发动机微粒排放有明显改善,SCR是目前最具潜力的NO_x还原技术,采用"电控高压共轨系统+SCR后处理系统"可以使非道路柴油机达到欧ⅢB排放指标,是一种有效可行的技术路线。A YD4N non-road diesel engine is used as an example, first, the performance parameters of original machine are adjusted, and the combustion technical parameters are optimized. Based on ＂high pressure common rail system ＋ SCR postprocessing system ＂ technical route,the experimental research of emission aftertreatment system is carries through. The experimental results show that the high pressure injection can improve the particulate emission of the engine, and the SCR is the most promising NOx reduction technology at present. Using the ＂high pressure common rail system ＋ SCR postprocessing system＂ can make the non-road diesel engine reach the Euro mB emission standard, and which is an effective and feasible technical route.

关 键 词：欧ⅢB SCR 高压共轨 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]