|Title||Choongsik Bae and Jinsuk Kang, "Diesel Spray Development of VCO Nozzles for High Pressure Direct-Injection,"SAE Paper 2000-01-1254, SAE2000 Congress, Detroit, Mar. 2000.|
Choongsik Bae and Jinsuk Kang, “Diesel Spray Development of VCO Nozzles for High Pressure Direct-Injection,”SAE Paper 2000-01-1254, SAE2000 Congress, Detroit, Mar. 2000.
Spray characteristics of diesel fuel injection is one of the most important factors in diesel combustion and pollutant emissions especially in HSDI (High Speed Direct Injection) diesel engines where the interval between the evaporation of atomized fuel and the onset of combustion is relatively short. An investigation into various spray characteristics from different holes of VCO nozzles was performed and its results were compared to standard sac nozzle. The global characteristics of spray, including spray angle, spray tip penetration, and spray pattern were measured from the spray images which were frozen by an instantaneous photography with a spark light source. For better understanding of spray behavior, SMD of the fuel sprays from each hole in the multi hole nozzles were measured with back light imaging while the sprays from the other holes were covered by a purpose-built nozzle cap.