Abstract
This study shows the current trends to achieve homogeneous mixtures in S.I. engines, impediments that arise in their implementation, and solutions to improve the mixture formation.
Performance indicators for a complete combustion process are emissions of CmHn, PM (which must tend to 0), in strict accordance with the auto-ignition-delay period. Also these performances are influenced by type of charge which enters the combustion chamber.
In order to realise an optimization of those processes will be used virtual models based on C.F.D. (Computational Fluid Dynamics) software.
Thus, the paper wishes to highlight (in terms of virtual simulation) jet fuel dependence, the degree of turbulence and optimize it.
Keywords: (Mixture Formation, C.F.D., HCCI, Port injection, Simulation)