CAJ | 학술논문

对某重型柴油机机油在使用过程中异常进入柴油、冷却液、被氧化和被污染的情况进行模拟实验。分别取不同体积百分比的柴油、冷却液、乙酸均匀混入纯净的机油中，使用油品传感器对混合后的机油测量其粘度、密度、介电常数和温度。测试结果表明：柴油稀释机油使得机油的粘度、闪电降低；冷却液稀释机油使得机油的介电常数、粘度增大，密度基本不变；机油被氧化使得机油的粘度增大，介电常数减小，密度基本不变。通过机油品质可监测柴油机润滑系统的技术状况，为实车机油的在线监测提供参考和按质换油提供手段。
대모중형시유궤궤유재사용과정중이상진입시유、냉각액、피양화화피오염적정황진행모의실험。분별취불동체적백분비적시유、냉각액、을산균균혼입순정적궤유중，사용유품전감기대혼합후적궤유측량기점도、밀도、개전상수화온도。측시결과표명：시유희석궤유사득궤유적점도、섬전강저；냉각액희석궤유사득궤유적개전상수、점도증대，밀도기본불변；궤유피양화사득궤유적점도증대，개전상수감소，밀도기본불변。통과궤유품질가감측시유궤윤활계통적기술상황，위실차궤유적재선감측제공삼고화안질환유제공수단。
This paper experimentalizes about unexpected leaking of diesel, coolant and lubrication oil oxidized and polluted in lubricant syslem of a heavy diesel engine. Lubricant oil sensor measures dynamic viscosity, density, dielectric constant and temperature of the mixed lubricant oil when diesel, coolant and acetic acid are taken separately in different proportions. The results reveal that： dynamic viscosity and flash point of lubricant oil decrease when diluted by diesel; the dielectric constant and dynamic viscosity of lubricant oil increase and density keeps fixedness when diluted by coolant; oxidized lubricant oil has the increasing dynamic viscosity and decreasing dielectric constant but density keeps fixedness. The inspection for exceptional quality of lubricant oil can reflect technical status of lubricant system and provide reference as well as instrument with real vehicle inspecting online and exchanging lubricant oil.