摘要
本文基于一台电控共轨柴油机研究了柴油机采用DOC+POC+SCR技术路线满足非道路印度四阶段排放法规要求的可行性。通过台架试验研究发动机本体氮氧化物和颗粒物排放关系,并使用近后喷喷油策略来降低发动机本体颗粒物排放。然后对比不同结构的POC方案对颗粒物捕集效率以确定POC方案。最终采用DOC+POC+SCR技术路线满足非道路印度四阶段污染物排放限值要求。
This paper investigates the feasibility of using DOC+POC+SCR technology route for diesel engines to meet the non-road Indian Stage IV emission regulations based on an electronically controlled common rail diesel engine.Studying the relationship between nitrogen oxide and particulate matter emissions from engine through bench tests.And a near-rear injection strategy was used to reduce engine particulate matter emissions.Then the POC schemes with different structures were compared for particle capture efficiency to determine the POC scheme.Finally DOC+POC+SCR technology route is used to meet the non-road Indian Stage IV pollutant emission limit requirements.
作者
农柳霞
Nong Liu-xia(Guangdong Automotive Testing Center Co.,Guangdong Foshan 528000)
出处
《内燃机与配件》
2023年第12期5-7,共3页
Internal Combustion Engine & Parts
关键词
非道路印度四
POC捕集效率
近后喷
PM
Non-road Indian Stage IV
Capture efficiency of POC
Near-rear injection
PM
