Characterization of Ignition and Parametric Study of a Two-Stroke-Cycle Direct-Injected Gasoline Engine 920423

A study of the early stages of combustion in a two-stroke-cycle, direct-injection engine was conducted with the aid of two tools which are both newly applied to the two-stroke; optical photography and in-cylinder hydrocarbon measurement. The data helps to understand how the intake air rate and fuel injection parameters affect delivery of the fuel charge to the spark gap and subsequent combustion quality. The conclusions of this study are intended to serve as a first step in empirically understanding the influence of the time-variant bulk and turbulent flows which are responsible for dissipation and motion of the direct injection fuel cloud.


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