Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Spray Characteristics for Specified Regions of High Pressure Swirl Injcetor in Gasoline Direct Injection Engine

가솔린 직접분사식 고압선회 분사기의 분무 영역별 분무 특성 고찰

  • 송범근 (전북대학교 대학원) ;
  • 김원태 (전북대학교 대학원) ;
  • 강신재 (전북대학교 기계항공시스템공학부)
  • Published : 2003.01.01
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Abstract

According as the industry was developed, the pollution of the environment and atmosphere rose up to the surface. So, the focus is now concentrated on the engines of affinity for nature. And the investigators make more effort to the improvement in the performance of engines, depending to the prices of oil and the anxiety about the exhaustion of the fossil fuel go up. So the GDI engines head up for these necessities. In this experimental study, the spray flow characteristics for a commercial injector equipped in the present GDI engine were investigated, which had a strong influence on the engine performance and emissions. The experiment was performed at the injection pressures of 1, 3, 5 and 7MPa under the atmospheric condition. A PDPA system was used to specify the flow characteristics of the spray. Also, the global spray behavior classified into three regions as leading, main spray and vortex cloud region, was analyzed by using a visualization system. And the regions were compared with each other.

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References

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