Inspection for Abnormal Quality of Lubrication Oil

This paper experimentalizes about unexpected leaking of diesel,coolant and lubrication oil oxidized and polluted in lubricant system 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.