한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제8권5호
  • /
  • Pages.28-35
  • /
  • 2000
  • /
  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

공기보조 분사기와 고압 선회식 분사기의 특성 비교 - Part II: 미시적 분무특성

Comparison of Overall Characteristics between an Air-Assisted Fuel Injector and a High-Pressure Swirl Injector- Part II: Microscopic Spray Characteristics

  • 장창수 (회원, 한국과학기술원 기계공학과) ;
  • 최상민 (회원, 한국과학기술원 기계공학과)
  • 발행 : 2000.09.01
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초록

As a second part of the comparison study, microscopic features of an air-assisted fuel injector(AAFI) and a high-pressure swirl injector (HPSI) were characterized. They consist of the internal spray structure in terms of fuel mass and drop diameter, the overall atomization performance with respect to operating parameters and the drop size distribution. Large droplets are concentrated in around the head part of a spray field of the HPSI, while in the case of the AAFI, they were distributed in the tail part. Although the AAFI showed the better atomization performance, the feasible ranges of operating parameters such as injection and ambient pressure were found to be wider in the HPSI. Drop size distribution of the AAFI sprays was more dispersed than that of the HPSI. Drop size distribution of the AAFI sprays was more dispersed than that of the HPSI. However, at the well-atomized condition, it appeared to be very uniform.

키워드

참고문헌

  1. SAE Techical Paper 970627 A Review of Mixture Preparation and Combustion Control Stategies for Spark-Ignited Direct-Injection Gasoline Engine F.Q. Zhao, M.C. Lai;D.L. Harrington
  2. SAE Techical Paper 980153 Combustion and Emissions Characteristics of Orbitals Combustion Process Applied to Multi-Cylinder Automotive Direct Injected 4-Stroke Engines R. Houston;G. Cathcart
  3. Atomization and Sprays v.8 A Study of Two-Phase Injector Performance for Direct-Injection Stratified-Charge Engines Y.P. Lee, S.S. Kim;S.M Choi
  4. SAE Techical Paper 960600 Combustion Control Technologies for Direct Injection SI Engine T. Kume, T. Iwamoto, K. Iida, M. Muramaki, K. Asishino;H. Ando
  5. SAE Techical Paper 970540 Development of a Direct Injection Gasoline Engine J. Harada, T. Tomita, H. Mizuno, Z. Mashiki;Y.Ito
  6. Atomization and Sprays (in press) An Experimental and Analytical Study of the Spray Characterics of an Intermittent Air-Assisted Fuel Injector C. Jang, S. Kim;S. Choi
  7. SAE Techical Paper 980498 GDI: Interaction Between Mxture Preparation, Combustion System and Injector Performance C. Preussner, C. Doring, S. Fehler;S. Kampmann
  8. Atomization and Sprays(in press) Characterization of Prototype High Pressure Swirl Injector Nozzles-Part I: Prototype Development and Initial Characterization of Sprays C. Jang, C. Bae;S. Choi
  9. Drop Sizing and Depth-of-Field Correction in TV Imaging Atomization and Sprays v.4 no.1 K.S. Kim;S. S. Kim
  10. 한국자동차공학회 논문집(submitted) 2유체 분사기와 고압선회식 분사기의 특성 비교 - Part I: 유량 및 거시적 분무특성 장창수, 최상민
  11. SAE Techical Paper 970542 Mixture Preparation for Direct-Injection SI Engine M. Ohsuga, T. Shiraishi, T. Nogi, Y. Nakayama;T. Sukegawa
  12. SAE Techical Paper 1999-01-3654 Performance of Prototype High Pressure Swirl Injcetor Nozzles for Gasoline Direct Injection C. Jang, S. Choi, C. Bae, J. Kim;S. Baik