发动机润滑油对柴油车排放特性影响研究简述  

Research Progress on Influence of Engine Lubricant on Emission Characteristics of Diesel Vehicles

作　　者：王丛智 马长文[1] 汪睿 唐健毅 WANG Congzhi;MA Changwen;WANG Rui;TANG Jianyi(Shanghai Polytechnic University,Shanghai 201209,China)

机构地区：[1]上海第二工业大学,上海201209

出　　处：《汽车零部件》2024年第11期61-64,共4页Automobile Parts

摘　　要：柴油车排放是影响城市大气质量的重要源头之一,对柴油车排放的颗粒物、氮氧化物、一氧化碳、碳氢化合物等特征物的研究较为成熟,但是针对发动机润滑油对柴油车排放特性影响的关注较少。从现有的国内外研究结果来看,润滑油的成分和运行工况对柴油车排放的颗粒物粒径、有机组分、金属含量等都有直接影响。增加润滑油的黏度和降低其挥发性可以减少颗粒物的排放。在柴油中掺混润滑油的比例越高,排放的颗粒物,特别是核膜态颗粒物(粒径为5~50 nm)浓度越高,且随着润滑油所占比例的增加,小粒径排放颗粒物的占比相应增加。以上结论有助于润滑油改性和减少润滑油对柴油车排放污染影响的研究。Diesel vehicle emissions are one of the important sources affecting urban air quality.Research on characteristic substances such as particulate matter,nitrogen oxides,carbon monoxide,and hydrocarbons emitted by diesel vehicles is relatively mature,but there is less attention paid to the impact of engine lubricant on the emission characteristics of diesel vehicles.From the existing domestic and international research results,the concentration and particle size of particulate matter,the composition of organic matter,the composition of metallic particulate matter and the content of each component change depending on the type of engine lubricant and the operating environment.Increasing the viscosity of lubricant and reducing its volatility can reduce the emission of particulate matter.The higher the proportion of lubricating oil mixed in diesel,the higher the concentration of particulate matter emitted,especially nuclear film particulate matter(particle size 5~50 nm),and as the proportion of lubricating oil increases,the proportion of small particle emissions correspondingly increases.The above conclusions are helpful for studying the modification of lubricant and reducing the impact of lubricant on diesel vehicle emissions pollution.

关 键 词：润滑油 排放特性 有机物组成 排放颗粒物 金属排放物 

分 类 号：TK09[动力工程及工程热物理]