A Study on Suitable Injection Pressure of Ultra High Pressure Injection System

초고압 분사의 적정분사압력에 관한 연구

Spray and combustion characteristics were investigated to find suitable injection pressure by using ultra high pressure injection and single shot diesel combustion systems. As injection pressure was increased, spray penetration and spray angle were increased continuously until 2,000bar, but after this injection pressure region the rate of increase was decreased suddenly. Combustion characteristics were also enhanced until 2,000bar of injection pressure.