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커먼레일식 디젤 인젝터의 충돌 분무에 대한 실험적 연구 (2) -미립화 특성-
이창식 ( Lee Chang Sig ),박성욱 ( Park Seong Ug ),서상헌 ( Seo Sang Heon ) 한국분무공학회 2003 한국액체미립화학회지 Vol.8 No.3
N/A In this study, the experimental study on atomization characteristics of the fuel spray impinging on the wall was performed at different wall distances and angles for wall inclination. The fuel injection system was composed on the common-rail system, and the injection signal was synchronized by the delay generator. The atomization characteristics of the injected spray were analyzed in terms of the SMD and velocities which were measured by using the phase Doppler particle analyzer system. It is revealed that the free spray is atomized actively above 50㎜ form the infector trip. In the cases of the impinged spray, the SMD and velocity of the impinged spray are smaller than those of the free spray. The impinged spray has the maximum velocity near the 35㎜ of the radial distance from the injector axis, and the atomization performance is enhanced with the decrease of the wall distance.