한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제15권1호
  • /
  • Pages.99-105
  • /
  • 2007
  • /
  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

가변 흡기시스템에 의해 유도되는 흡입공기의 유동특성 평가를 위한 새로운 3차원 회전유동 지수에 관한 연구

A Study on the New 3-D Angular Flow Index for Evaluation of In-Cylinder Bulk Flow Characteristics of the Air Induced by Variable Induction System

  • Yun, Jeong-Eui (Division of Mechatronics, Kangwon National University) ;
  • Nam, Hyeon-Sik (Division of Mechatronics, Kangwon National University) ;
  • Kim, Myung-Hwan (Division of Mechatronics, Kangwon National University) ;
  • Min, Sun-Ki (Department of Powertrain, Technical Center, GM Daewoo Auto&Technology Co.) ;
  • Sim, Dae-Gon (Department of Powertrain, Technical Center, GM Daewoo Auto&Technology Co.) ;
  • Park, Pyeong-Wan (Department of Powertrain, Technical Center, GM Daewoo Auto&Technology Co.)
  • 발행 : 2007.01.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

It is very important to clarify the 3-D angular flow characteristics of in-cylinder bulk motion in the developing process of variable induction system. In-cylinder flow induced by variable induction system is very complex, so we can not describe the in-cylinder bulk flow characteristics using the conventional swirl or tumble coefficient. In this study, we introduced the new 3-D angular flow index, angular flow coefficient($N_B$), for in-cylinder bulk flow characteristics. And also, to confirm the index, we carried out the steady flow rig test for intake port of test engine varying valve lift on the test matrix.

키워드

참고문헌

  1. T. G. Baker and C. J. E. Nightingale, 'Port Throttling and Port De-activation Applied to a 4-Valve SI Engine,' SAE 960587, pp.87-99, 1996
  2. B. Johansson and F. Soderberg, 'The Effect of Valve Strategy on In-Cylinder Flow and Combustion,' SAE960582, pp.33-48, 1996
  3. S. Omori, K. Iwachido, M. Motomochi and O. Hirako, 'Effect of Intake Port Flow Pattern on the In-Cylinder Tumbling Air Flow in Multi- Valve SI Engines,' SAE910477, pp.729-740, 1991
  4. J. C. Lee, C. W. Lee and A. Nitkiewicz, 'The Application of a Lost Motion VVT System to a DOHC SI Engine,' SAE950816, pp.189-198, 1995
  5. Y. Han, K. Hwan and K. Lee, 'An Experimental Study on the Measurement of Flow Field in a Direct Diesel Engine Using a Single Cylinder Visualization Engine,' Transactions of KSAE, Vol.14, No.1, pp.129-137, 2006
  6. J. Kim, J. Lee and J. Ha, 'The influence of Mixture Flow and the Ignition Conditions on the Initial Flame Propagation Characteristics,' Transactions of KSAE, Vol.7, No.6, pp.57-64, 1999
  7. J. E. Yun, 'New Evaluation Index for Bulk Motion of In-Cylinder Flow through Intake Port System in Cylinder Head,' ImechE, Part D, Journal of Automobile Engineering, Vol.216, pp.513-521, 2002 https://doi.org/10.1243/09544070260137444
  8. J. E. Yun, 'A Study on Combined Effects between Swirl and Tumble Flow of Intake Port System in Cylinder Head,' Transactions of KSAE, Vol.7, No.8, pp.76-82, 1999