Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Intermittent Spray Characteristics of the Injection Nozzle for a Gasoline Engine

가솔린 엔진용 분사노즐의 간헐적인 분무특성

  • 김원태 (정회원, 전북대학교 대학원 정밀기계공학과) ;
  • 오제하 (정회원, 전북대학교 대학원 정밀기계공학과) ;
  • 강신재 (정회원, 전북대학교 기계공학부) ;
  • 노병준 (정회원, 전북대학교 기계공학과)
  • Published : 1997.05.01
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Abstract

Spray characteristics of a fuel injector have an important effect upon engine power and emission. Thus this study was investigated the spray characteristics of the intermittent injection using a gasoline fuel injector. Image processing system and PDA system were utilized for visualization of a spray behavior and measurements of a droplet size and velocity, respectively. Fuel injection duration was fixed with 3ms and injection pressure was varied such as 250kPa, 300kPa, 350kPa. for a high fuel injection pressure, spray tip arrival time was fluctuated at a vigorously disintegrated cross section. Axial velocity was linear correlated with fuel droplet size in the time interval of an injected main spray at spray downstream.

Keywords

References

  1. 4th International Symposium on Applications of Laser Anemometry to Fluid Mechanics Application of Phase and Laser Doppler Anemomentry to the Measurment of Droplet Size and Velocity in Gasoline and Diesel Fuel Injection Systems M. Safman;G. K. Fraidl;G. Wigley
  2. 3rd International Conference Laser Anemometer-Advances and Applications Laser and Phase Doppler Anemometry Measurement Techniques for Automotive Fuel Sprays G. Pitcher;G. Wigley
  3. The 5th International Symposium on Application of Laser Technique to Fluid Mechanics measurement of Fuel Injector Spray Flow of I. C. Engine by FFT Based Phase Doppler Anemometer-An Approach to the Time Series Measurement of Size and Velocity K. Kobashi;K. Hishida;M. Maeda
  4. Proc. Conference ILASS-Europe Phase Doppler Anemometry in Gasoline Sprays : In Atmosphere and in a Steady Flow Rig J. B. Dementhon;F. Vannobel
  5. Comustion and Flame 88 Charactreristics of Intermittent Fuel Sprays B. Jawad;E. Gulari;N. A. Henein
  6. JSME Series B v.58 no.547 Characteristics of Spray Injected from Gasoline Injector(1st Report, Macroscopic Behavior of Spray) Tokihiro Tsukamoto;Teruo Wakashiro;Masashi Yamaguchi;Jiro Senda;Hajime Fujimoto
  7. 한국항공우주학회지 v.23 no.1 액막형 동축분무의 액적크기 분포함수에 관한 연구 강신재;최진철;오제하;노병준