05 - Propulsion
OPTIMIZATION OF THE FUEL INJECTOR TO AN INTERNAL COMBUSTION ENGINE BY MEANS OF LASER EQUIPMENT
M. Kowalskiš, A. Jankowskiš, R. Szczepanik, Polish Air Force Academy Deblin, Poland; šAFIT, Poland
The performed researches were aimed to determine the droplet diameter and shape of the velocity field at different test injector configurations. The results of the research made it possible to determine the relationship between the injector configuration and the velocity and size distribution of droplets. The influence of fuel viscosity and injection pressure on the fuel droplet diameters and distributions of the velocity field in the stream of droplets were executed. The tests were conducted in a special test chamber with constant capacity. Measurements were carried out using a Laser Doppler Measuring equipment (PDPA and LDV). Seven different fuels with varying viscosity and surface tension were used with injection pressure from 50 MPa to 130 MPa. The results of the research made it possible to determine the relationship between the configuration of the injector design, alternative fuels and fuel additives, velocity and spectral distribution on the fuel spray droplets of fuel and air impacts on fuel spray