Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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A Study on the Measurement of Individual Spray Cone Angle from Gasoline Direct Injection Injector using Spray Pattern Analysis

분무패턴 분석을 이용한 가솔린 직접 분사식 인젝터의 개별 분무플럼 분무각 측정 방법에 대한 연구

  • 박정현 (전남대학교 일반대학원 기계공학과) ;
  • 조한빈 (전남대학교 기계공학부) ;
  • 박수한 (전남대학교 기계공학부)
  • Received : 2019.11.11
  • Accepted : 2019.12.08
  • Published : 2020.06.30
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Abstract

The purpose of this study is to propose and compare methods for measuring individual spray cone angles using spray cross-section images. In direct injection gasoline engines, it was believed that the distribution of air-fuel mixture in the combustion chamber directly affected combustion performance and emission formation. However, since gasoline direct injection (GDI) injectors have a small injection angle, interference between individual spray plumes occurs. Therefore, GDI injectors have only measured the spray angle of the entire spray. To overcome these limitations, three methods of indirectly measuring the spray cone angles of individual spray plume were presented and compared by forming sheet beams using Nd:YAG laser and acquiring spray cross-section images. Each method currently has advantages and disadvantages, and research to apply the method suitable for various GDI injectors needs to be continued.

Keywords

References

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