한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제4권3호
  • /
  • Pages.22-30
  • /
  • 1996
  • /
  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

고속 직접분사식 디젤엔진의 실린더내 유동특성에 관한 실험적 연구

An Experimental Study of In-Cylindeer Flow Characteristics of a High Speed Direct Injection Diesel Engine

  • 정경석 (한국기술교육대학교 동력기계공학과)
  • 발행 : 1996.05.01
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초록

In-cylinder flow of a purpose-built small HSDI Hydra Diesel engine was investigated by laser Doppler velocimetry(LDV) during induction and compression processes. The flow was quantified in terms of ensemble-averaged axial and swirl velocities, normalized by the mean piston speed, at a plane located 12mm from the cylinder head and corresponding to the mid-plane of the diametrically-opposed quartz windows at an enigne speed of 1000rpm. The formation of toroidal vortices during the intake process and the evolution and decay of swirl motion during the compression process were observed. Turbulence at around TDC of compression became homogeneous and isotropic.

키워드

참고문헌

  1. SAE paper 950851 A New Mulit-Impingement-Wall Head Diffusion Combustion System(NICS-MH) of a DI Diesel Engine Lin, B. F.;Ogura, M
  2. SAE paper 932654 Technology for Meeting the 1994 USA Exhaust Emission Regulation on Heavy-Duty Diesel Engine Kawatomi, T;Mori, K;Fukano, I;Sugawara, K;Koyama, T
  3. M acmillan, 2nd ed. Introduction to Internal Combustion Engines Stone, R
  4. Proc. I. Mech. E., Part D: Journal of Automobile Engineering v.208 Meeting the Challenge of Low Emissions and Fuel Economy with the Ricardo Four-Valve High-Speed Direct Injection Engine Needham, J. R.;Whelan, S.
  5. SAE paper 941926 Ford 4-vlave Light-duty DI Diesel Deveolpments Menne, R. J.;Lawrence, P. J.;Horrocks, R. W.;Robertson, P. S.
  6. SAE paper 950854 Numerical Calculation of Spary Mixing Process in a DI Diesel Engine and Comparison with Experiments Tabata, T.;Ishii, Y.;Takatsuki, T.;Yokota, K.
  7. SAE paper 870370 Swirl Center Precession in Engine Flows Arcoumanis, C.;Hadjiapostolou, A;Whitelaw, J. H.
  8. Proc. IMechE Conf. on IC Engine Research in UK Universities, Polytechnics and Colleges Measurements of the Flow in a Hydra DI Diesel Engine Arcoumanis, C.;Hadjiapostolou, A;Whitelaw, J. H.
  9. Proc. ASME Automotive Engine Technology Symposium Correlation between Valve and In-Cylinder Flow in a Motored Reciprocating Engine Arcoumanis, C.;Vafids, c.;Vorropoulos, G.;Whitelaw, J. H.