国六柴油机PN排放试验研究
Study on PN Emission of CHINA Ⅵ Diesel Engine
兰亚 1张勇 1宋军太 1房瑞雪 1王祥吉1
作者信息
- 1. 潍柴动力股份有限公司 山东 潍坊 261061
- 折叠
摘要
为探究国六柴油机开式排放循环中PN排放的影响因素,本文以某国六轻型柴油机为研究对象,研究不同漏气量下 WHTC开式排放循环中PN排放量级,以及开式循环管路加热装置、冷态 WHTC试验前的不同凉车时间、呼吸器内部毛毡结构等参数条件对排放循环 PN 尾排的影响.研究结果表明:①柴油机本体漏气量对开式PN排放的影响较显著;而呼吸器内部毛毡结构对开式PN 排放影响较小;②开式循环下,开式管路的加热装置对冷态WHTC的PN排放的影响较显著;而对热态WHTC的PN排放影响较小;③开式冷态WHTC试验前凉车时间的增加,会导致冷态 WHTC的PN排放增加.
Abstract
In order to explore the factors affecting PN emissions in the open emission cycle of CHINAⅥ diesel en-gines,the study of CHINAⅥ diesel engines examine the difference in PN emissions in the WHTC open emission cycle at different blow-by volumes,as well as the effect of parameter conditions such as open loop line heating,different cold cycle times before cold-running WHTC testing,and the internal felt structure of the respirator on the PN emissions of the WHTC cycle.The results of the research show that:① The impact of the gas leakage of the diesel engine is significant for the open cycle PN emissions;The effect of the discharge of the split PN of the felt structure inside the respirator is small;② The heating of open lines has a significant impact on PN emissions of cold-running WHTC,while the PN emis-sions of hot WHTC are less affected;③ As the cooling time increases before the cold-running WHTC test,it can lead to an increase in PN emissions from the cold-state WHTC.
关键词
PN排放/柴油机/漏气量/开式循环/加热装置Key words
PN emission/Diesel/Gas leakage/Open cycle/Heating unit引用本文复制引用
出版年
2024
NETL
NSTL
万方数据