The Performances of Different Kinds of Oil Coolants Applied to Small High Speed Diesel Engines

Four different kinds of selected oil coolants, with different thermodynamic physical performances, have been applied to small high speed diesel engines with other direct injection or precombustion chambers. The consequent results which have been examined include: the effects of temperature on steady state, the combustion process, the performance of exhaust and others. It shows the comprehensive performance of YD131 oil coolant is better than the other oil coolants.