Experimental study on the coking characteristics of engine oil based on thin film oxidation
YANG Shengyun
XIAO Jin
Abstract：Focusing on the issue of oil coking at the outlet of the compressor during the operation of a turborcharged diesel engine,a simulation test is conducted on a metal sheet coking bench using diesel engine oils of specifications CD 15W-40 and CI-4 15W-40 as the research objects.The high-temperature coking law of engine oil at different temperatures is studied,and the coking products are analyzed by microscopic infrared spectroscopy.The results indicate that temperature affects the high-temperature coking process of the oils,and there is a peak in the mass of coking products when the temperature changes.Moreover,the composition of the oil coking products differs at different temperatures,with a higher temperature leading to a greater degree of oxidation in the coking products.
Keywords：engine oilturbocharged enginehigh temperaturecoke
Publication Date：2024-08-28
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：8( 48-55 )