DETERIORATION DETECTION DEVICE AND METHOD OF LUBRICATING OIL, AND ENGINE SYSTEM EQUIPPED WITH DETERIORATION DETECTION DEVICE OF LUBRICATING OIL

摘要

PROBLEM TO BE SOLVED: To provide a deterioration detection device and a method of lubricating oil which can diagnose the deterioration of the lubricating oil at real time without stopping an internal combustion engine, and an engine system equipped with the deterioration detection device of the lubricating oil.;SOLUTION: The deterioration detection device 50A comprises: an isolated-lubricating oil tank 51 which isolates a part of the lubricating oil 31 circulating in a circulation line L₁₁ of the lubricating oil 31 by using an isolation line L₁, and has an evaporation space 51a; an impurity removal line L₂ which brings the isolated-lubricating oil tank 51 into a sealed state, and after that, sucks and removes an exhaust gas component 52 by using a pump P₁; and a detection part 54 which brings the tank into the sealed state once again after removing the exhaust gas component 52, and detects a fuel-derived evaporated component 53 which is generated in the evaporation space 51a.;COPYRIGHT: (C)2012,JPO&INPIT