润滑油添加剂对柴油机颗粒物微观物理特性的影响研究*

doi:10.19562/j.chinasae.qcgc.2020.11.013

Abstract

Abstract: In this paper, three different lubricating oil additives are used to configure the test fuel. The diesel engine bench tests are conducted and particulate samples are collected. Then the effect of lubricant additives on particle morphology, structural characteristics and graphitization degree are studied by means of SEM/TEM/Raman spectra. The results show that the particle diameter depends on the PAHs content of the fuel. The microcrystalline size of particles decreases with the increase of fuel cetane value. The larger the microcrystalline size, the higher the degree of ordering of carbon layer structure.The larger the curvature of the basic carbon particle, the worse the electron resonance stability of the carbon layer

Key words: lubricating oil additive, micromorphology of particles, structural characteristics, graphitization degree, Raman spectroscopy

Xu Guangju, Gao Jian, Li Mingdi, Zhao Yang, Lin Ling. Study on the Effect of Lubricating Oil Additives on the Microphysical Properties of Diesel Particulate Matter[J].Automotive Engineering, 2020, 42(11): 1545-1551.

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Study on the Effect of Lubricating Oil Additives on the Microphysical Properties of Diesel Particulate Matter

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