Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Development of the 3-D Bulk Motion Index for In-Cylinder Flow Induced by Induction System (II) - Based on the Steady Flow Rig Test Results -

흡기시스템을 통해 실린더로 유도되는 공기의 3차원 Bulk Motion Index 개발 (II) - 정상유동실험결과를 중심으로 -

  • 윤정의 (강원대학교 메카트로닉스공학부) ;
  • 남현식 (강원대학교 대학원 정밀기계과) ;
  • 김명환 (강원대학교 대학원 정밀기계과) ;
  • 민선기 (GM대우오토엔테크놀로지 기술연구소) ;
  • 박병완 (GM대우오토엔테크놀로지 기술연구소) ;
  • 김기성 (전남대학교 기계자동차공학부)
  • Published : 2006.11.01
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Abstract

Recently, because the variable induction systems are adopted to intake system, in-cylinder flow induced by induction system is very complex. Therefore it is very difficult to describe the in-cylinder bulk flow characteristics using the conventional swirl or tumble coefficient. In this study, in order to clarify the 3-D angular flow characteristics of in-cylinder bulk motion in the developing process of variable induction system, we introduced the new 3-D angular flow index, angular flow coefficient($N_B$) Finally, 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.

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References

  1. Lee, G. H., Lee, C. S. and Takagi, Y., 1995, 'Development of Analysis Technique for the Tumble Flow in a DOHC Engine,' KSME Conference, Vol. 1, No. 2, pp. 558-563
  2. Jeong, D. S., Kang. G. Y. and Uhm, J. H., 1991, 'A Study on Swirl and Tumble Motion ？Inside a Cylinder in a 4-Valve High Speed Gasoline Engine,' Trans. of the KSME, Vol. 14, No. 4, pp. 1280-1289
  3. Yun, J. E., 2002, '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 https://doi.org/10.1243/09544070260137444
  4. Yun, J. E., 1999, 'A Study on Combined ？Effects Between Swirl and Tumble Flow of Intake Port System in Cylinder Head,' KSAE, Vol. 7, No. 8, pp. 76-82
  5. Yun, J. E., 2005, 'Development of the 3-D Bulk Motion Index for In-Cylinder Flow Induced by Induction System (I) - Based on the Steady Flow Rig Test Results,' KSME Kangwon Conference, pp. 31-37