满足非道路国四排放标准的大功率柴油机技术  

Emission Control Technologies of High-Powered Diesel Engines to Meet Non-Road ChinaⅣRegulation

作　　者：王鑫 张祥臣 吴亚龙 聂志斌 韩莉 牛晓晓 孟亮虎 WANG Xin;ZHANG Xiangchen;WU Yalong;NIE Zhibin;HAN Li;NIU Xiaoxiao;MENG Lianghu(Henan Diesel Engine Industry Co.,Ltd.,Luoyang 471003,China)

机构地区：[1]河南柴油机重工有限责任公司,洛阳471003

出　　处：《柴油机》2022年第6期7-10,57,共5页Diesel Engine

基　　金：河南省重点研发与推广专项项目(192102310238)。

摘　　要：某型大功率柴油机的排放值不满足非道路国四排放法规的要求,为此,对该柴油机燃油喷射系统、燃烧系统、增压系统和后处理系统进行优化设计和匹配。优化喷油策略,使柴油机的PM、CO和HC排放降低到非道路国四限值以下;安装选择性催化还原系统以降低NO_(x)排放。标定试验结果表明,升级后的柴油机满足非道路国四排放法规要求。The emissions of a high-powered diesel engine could not meet non-road ChinaⅣregulation.Therefore,the design and matching of the fuel injection system,combustion system,supercharging system and after-treatment system of the diesel engine were optimized.By optimizing the injection strategies,the particulate matter,CO,and HC emissions of the diesel engine were reduced to satisfy the non-road ChinaⅣemission limit,and a selective catalytic reduction(SCR)system was installed to remove NO_(x) emissions.The calibration test results showed that the upgraded diesel engine met the non-road ChinaⅣregulation.

关 键 词：大功率柴油机 排放 喷油策略 选择性催化还原系统 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]