This paper describes the analyses to improve both stratified and homogeneous charge combustion of a gasoline direct injection engine. In this study, computational fluid dynamics (CFD) and high-speed hydrocarbon (HC) measurement were employed to observe the mixture formation process. The analysis of the combustion flame propagation was conducted by in-cylinder visualization and ion current measurement. As a result of the analyses, the following conclusions were made: As a result of this study, a shallow cavity piston with an oval shaped wall was developed. It achieved low fuel consumption, low HC emission, and high WOT performance.
Combustion Analysis on Piston Cavity Shape of a Gasoline Direct Injection Engine
Sae Technical Papers
International Spring Fuels & Lubricants Meeting ; 2001
07.05.2001
Aufsatz (Konferenz)
Englisch
Combustion analysis on piston cavity shape of a gasoline direct injection engine
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