油烟的形成及其对发动机油的影响

S. V. Pashukevich
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引用次数: 1

摘要

介绍在燃料供应增加的柴油发动机中燃烧柴油的过程中,由于其不完全燃烧,形成烟灰颗粒,这些烟灰颗粒要么释放到大气中,要么不可避免地进入发动机油。烟灰污染机油,导致机油质量指标发生变化。烟灰是在没有空气的情况下,碳氢化合物燃烧过程中,在富含燃料的区域的火焰中通过复杂的反应机制形成的非常小的颗粒,主要由无定形碳和有机物的混合物组成。材料和方法。本文介绍了一篇旨在研究柴油机运行过程中烟灰产生的方式及其影响的文献综述的结果。还讨论了柴油机烟灰在摩擦副和发动机部件表面的力学性能。结论。在废气再循环的发动机中,发动机机油中的烟灰含量会急剧增加,这会导致摩擦区温度和润滑剂粘度的升高,并导致在热零件上形成沉积物。这些过程是由于曲轴箱空间中的排放和来自燃烧室的气体进气的增强而发生的。应在烟灰进入发动机机油的速率增加时监测机油更换间隔。学习/机会的范围。这类研究将有助于确定柴油发动机中烟灰的原因,了解使用被烟灰颗粒污染的机油的后果。创意/价值。所进行的研究可以作为为拥有柴油发动机汽车的企业制定改进内燃机维护建议的基础,以增加动力装置的资源并降低运营成本。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Soot formation and effect on engine oils
Introduction. During the combustion of diesel fuel in a diesel engine with an increased fuel supply, as a result of its incomplete combustion, soot particles are formed, which are either released into the atmosphere or inevitably enter the engine oil. Soot, polluting the engine oil, causes a change in its quality indicators. Soot is very small particles formed by a complex reaction mechanism in the flame of a fuel-rich region during the combustion of hydrocarbons in the absence of air, mainly consisting of a mixture of amorphous carbon and organic matter.Materials and methods. This paper presents the results of a literary review aimed at studying the ways of soot occurrence during the operation of diesel engines, its effect. The mechanical properties of diesel soot are also discussed on the surfaces of friction pairs and engine components.Conclusions. The soot content in engine oil will increase sharply in engines with exhaust gas recirculation, which leads to an increase in temperature in the friction zones and viscosity of the lubricant, as well as to the formation of deposits on hot parts. These processes occur due to the discharge in the crankcase space and the intensification of the intake of gases from the combustion chamber. Oil change intervals should be monitored at an increased rate of soot entering the engine oil.Scope of the study / opportunity. This type of study will help determine the causes of soot in a diesel engine, understand the consequences of using engine oil contaminated with soot particles.Originality / value. The conducted research can be the basis for the development of recommendations for improving the maintenance of internal combustion engines for enterprises that have cars with diesel engines at their disposal in order to increase the resource of power units and reduce operating costs.
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