The Effect of the Air Temperature and Air-assisted Pressure on the Fuel Droplet Atomization

분무 공간의 공기온도와 보조공기의 공급압력이 연료입자의 미립화에 미치는 영향

The fuel injection type, in the gasoline engines of atomization of fuel droplet and its distribution hae influenced directly on the decision of engine performance and harmful emission. In this paper, atomization characteristics of fuel spray is investigated with microscopic visualization system. Particle motion analysis system is used to measure the SMD from fuel spray of air-assisted injector by initial factors such as temperature of ambient air and air-assisted pressure. As air-assist pressure and ambientair temperature increase, the SMD is decreased, and its variation is more stable.