한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제13권1호
  • /
  • Pages.19-27
  • /
  • 2005
  • /
  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

DISI 엔진용 스월인젝터와 슬릿인젝터의 분무 거동에 관한 연구

An Experimental Study on the Spray Behaviors of Swirl and Slit Injector to Direct Injection Spark Injection Engine

  • Lee Changhee (Department of Mechanical Engineering, Hanyang University) ;
  • Lee Kihyung (Department of Mechanical Engineering, Hanyang University) ;
  • Choi Youngjong (Department of Mechanical Engineering, Hanyang University)
  • 발행 : 2005.01.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The spray characteristics of DISI injector has a great role in engine efficiency and emission. Thus, many researchers have been studied to investigate the spray characteristics of hollow cone type and slit type injector which are used in DISI engine. In this study, we tried to provide spray parameters which effect on the spray characteristics such as injection pressure, ambient pressure and ambient temperature. In addition, we calculated $t_b\;and\;t_c$ to investigate the break up mechanism of test injectors and also obtained $C_v$ to evaluate the spray characteristics. From this study, As the ambient pressure increases in case of slit injector, $C_v$ decreases.

키워드

참고문헌

  1. Y. Tanaka, H. Sami, T. Takano, K. Sakai and N. Osumi, 'Analysis on Behavior of Swirl Nozzle Spray and Slit Nozzle Spray in Correlation to Dr Gasoline Combustion,' SAE 2003-01-0058, 2003
  2. C. H. Lee and K. H. Lee, 'New Technology of the Mixture Formation for the Spark Ignited Direct Injection Gasoline Engine,' Journal of KSAE, Vol.25, No.6, 2003
  3. M. Shelby and S. Hochgreb, 'Early Spray Development in Gasoline Direct-Injected Spark Ignition Engines,' SAE 980160, 1998
  4. F.-Q. Zhao and M.-C. Lai, 'A Review Mixture Preparation and Combustion Control Strategies for Spark-Ignition Direct-Injection Gasoline Engines,' SAE970627, 1997
  5. F.-Q. Zhao, J.-H. Yoo and M.-C. Lai, 'Spray Dynamics of High Pressure Fuel Injectors for DI Gasoline Engines,' SAE 961925, 1996
  6. T. Yamauchi and T. Wakisaka 'Computation of the Hollow-Cone Sprays from a HighPressure Swirl Injector for a Gasoline DirectInjection SI Engine,' SAE 962016, 1996
  7. H. Hiroyasu and M. Ari, 'Fuel Spray Penetration and Spray Angle in Diesel,' Trans. of JSAE, No.21, pp.5-11, 1980
  8. F.-Q. Zhao, J.-H. Yoo and M.-C. Lai, 'Spray Dynamics of High Pressure Fuel Injectors for DI Gasoline Engines,' SAE 961925, 1996
  9. G. M. Choi, D. S. Choi, and D. J. Kim, 'Spray Structures and Vaporizing Characteristics of a GDI Fuel Spray,' KSME International Journal, Vol.16, No.7, 2002
  10. M. Yamakawa, S. Isshiki, T. Yoshizaki and K. Nishida, 'Measurement of Ambient Air Motion of D.I. Gasoline Spray by LIF-PIV,' COMODIA, pp.499-504, 2001
  11. J. H. Rhim and S. Y. No, 'Breakup Length of Conical Emulsion Sheet Discharged by Pressure-swirl Atomizer,' Int. J. Automotive Technology, Vol.2, No.3, pp.93-101, 2001
  12. Y. W. Woo, C. H. Lee, K. H. Lee and C. S. Lee, 'An Investigation on the Spray Homogeneous Characteristics of a GDI Spray for Entropy Analysis Method Using Laser Scattering Images,' Transactions of KSAE, Vol.10, No.6, pp.44-50, 2002