With continuous development of two-stroke gasoline engine and restriction on fuelemission, several specification of two-stroke gasoline engine oil have been formed. Thespecification of two-stroke gasoline engine oil will gradually match JASO and ISO.
In China,in order to keep the rapid development of motorcycle industry, to improve the performance ofmotorcycle and to carry out specification of emission, two-stroke gasoline engine fuel withgood performance of detergency, lubrication, emission and anti-jam, is urgently required.
In this paper we want to describe in detail how the task of numerically solving the flow through a two-stroke engine with moving parts is solved in an efficient way.