Abstract
This paper describes the results of lube oil consumption test in order to ensure sufficient reliability of a diesel engine, employing a prototype engine of 200 mm-diameter cylinder. The authors have tried to use a high-precision laser displacement detector in detecting the change of the lube oil surface levels in order to obtain the lube oil consumption rate when the continuous operation of the diesel engine is being performed. It was confirmed that the measurement of the lube oil consumption rate of the engine by using a laser displacement detector is more effective than the conventional method of measuring the lube oil level by visual observation. And, this paper presents the achievements that have been obtained through the tests as above described.
