Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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Study on Spray Characteristics of Single-Hole GDI Injector according to Nozzle Hole Diameter - (1) Comparison of Injection and Macroscopic Spray Characteristics

노즐 홀 직경에 따른 단공 GDI 인젝터의 분무 특성 연구 - (1) 분사 및 거시적 분무특성 비교

  • 박정현 (전남대학교 일반대학원 기계공학과) ;
  • 노승천 (현대케피코, 제품설계 2팀) ;
  • 상몽소 (전남대학교 일반대학원 기계공학과) ;
  • 박수한 (전남대학교 기계공학부)
  • Received : 2020.08.06
  • Accepted : 2020.09.25
  • Published : 2020.12.31
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Abstract

The purpose of this study is to compare the injection and spray characteristics of single-hole GDI injectors using injection rate and mie-scattering spray images. Five types of single-hole injectors with different nozzle hole diameters were used, and the spray rate, spray tip penetration, spray area, and spray width were analyzed. As a result, the diameter of the nozzle hole had a direct effect on the injection and spray characteristics. It was confirmed that the larger the diameter of the nozzle hole, the higher the injection quantity, the spray tip penetration, the spray area, and the spray width. In addition, it was confirmed that the near-field spray, which has little influence of ambient air, has a great correlation with the injection rate.

Keywords

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