한국분무공학회지 (Journal of ILASS-Korea)

  • 제23권1호
  • /
  • Pages.22-29
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  • 2018
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  • 1226-2277(pISSN)
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  • 2288-9051(eISSN)
한국분무공학회 (Institute for Liquid Atomization and Spray Systems-Korea)
권호 표지
DOI QR코드

DOI QR Code

분사압력 변화에 따른 가솔린 직접분사 인젝터의 거시적 분무와 분무패턴 특성에 관한 연구

Study on Macroscopic Spray and Spray Pattern Characteristics of Gasoline Direct Injection Injector for the Variation of Injection Pressure

  • 박정현 (전남대학교 일반대학원 기계공학과) ;
  • 박수한 (전남대학교 기계공학부)
  • 투고 : 2018.02.02
  • 심사 : 2018.03.20
  • 발행 : 2018.03.31
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초록

The purpose of this study is to investigate the macroscopic spray characteristics and spray pattern of a gasoline direct injection (GDI) injector according to the increase of injection pressure. The macroscopic spray characteristics, such as a spray tip penetration and spray angle, were measured and analyzed from the frozen spray images, which are obtained from the spray visualization system including the high-speed camera, light-source, long-distance microscope (LDM). The spray pattern was analyzed through the deviation of the center of the spray plum and images were acquired using Nd: YAG Laser and ICCD(Intensified charge coupled device) camera. From the experiment and analysis, it revealed that the injection pressure have a significant influence on the spray tip penetration and spray pattern. However, the injection pressure have little influence on the spray angle. The increase of injection pressure induced the reduction of a closing delay. In addition, the deviation of spray center increase with the increase of injection pressure and the distance from a nozzle tip.

키워드

참고문헌

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