Browse Publications Technical Papers 2003-32-0030
2003-09-16

Scavenging Efficiency and Combustion Performance in 2T Gasoline Engine 2003-32-0030

The paper concerns with gas exchange and combustion process in a 2T high speed gasoline engine and presents the results of a numerical-experimental investigation, in which zero-dimensional, one dimensional and three dimensional calculation schemes are used and the tuning between numerical and experimental results is performed. The different flow patterns from which the efficiency of the scavenging strongly depends are analysed, the variation with time of the spatial distribution of the fresh charge and combustion product in the cylinder is evaluated. The combustion process is simulated and the influence of geometric parameters of the ports on the scavenging efficiency, on the emission of hydrocarbons in the exhaust system and on the performance of the combustion process is investigated.

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