Study on Crankcase Oil Dilution of Kerosene Engine

Abstract

Using gas oil in a kerosene engine, the degree of crankcase oil dilution is studied experimentally varying the air-fuel ratio, degree of mixture heating, and load. The ratio of leakage-quantity to the supplied quantity of fuel oil is less in case of the larger air-fuel ratio, degree of mixture heating, and load. The rate of leakage of fuel oil is unexpectedly small, namely the maximum rate at 3 B 〓 is only 3.5%. Further this rate is decreased to 0.3% by means of increasing air-fuel ratio and degree of mixture heating.