Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Effects of Parameters of Combustion and Fuel Injection System on Performance and Exhaust Emissions in a Diesel Engine

연소계 및 연료분사계의 구성인자가 디젤엔진의 성능 및 배기 배출물에 미치는 영향

  • 이준 (호서대학교 산학협력중심대학)
  • Published : 2006.03.01
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Abstract

This study investigates a heavy duty diesel engine with swept vol. 12.6L, 4cycle-OHC type to verify the effects of the performance and exhaust gas emission according to the variable specifications of both swirl ratio and flow coefficient in inlet port, combustion bowl and fuel injection system. To meet the high BMEP and stringent exhaust emission standard, a turbocharger with wastegate and an intercooler were installed in the engine. Helical port, major design parameters for combustion chamber and electronic fuel injection pump with 1,000bar were reviewed and applied. Confirmation tests were also performed to meet the target value, $NO_x$ 5.0g/kWh and PM 0.1g/kWh of Euro3 exhaust emission legislation. The results of this study show that not only is it effective to use a relatively bigger bowl size for controlling rapid burning condition due to the decreased in-bowl swirl, but also to use a concave cam with double injection rates to decrease $NO_x$.

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References

  1. P. Tritthart, F. Ruhri and W. Cartellieri, The Contribution of the Lube Oil to Particulate Emissions of Heavy Duty Diesel Engines, AVL-List GmbH, pp.48-62, 1991
  2. H. Sugihara, 'Effects of High-Boost Turbocharging on Combustion Characteristics and Improving Its Low Engine Speed Torque,' SAE 900046, 1990
  3. N. Watson and M. S. Janota, 'Turbocharging the Internal Combustion Engine,' SAE 910731, 1991
  4. N. F. Gale, 'Diesel Engine Cylinder Head Design: The Compromises and the Techniques,' SAE 900133, 1990
  5. G. Tippelmann, 'A New Method of Investigation of Swirl Ports,' SAE 770404, 1977
  6. B. Khalighi, 'Intake-Generated Swirl and Tumble Motions in a 4-Valve Engine with various Port Configurations,' SAE 900059, 1990
  7. H. J. Kim, 'An Application technology of Higher Injection System in a Direct Injection Diesel Engine,' Journal of KSAE, Vol.16, No.6, pp.28-35, 1994
  8. J. B. Heywood, Internal Combustion Engine Fundamentals, McGraw-Hill, New York, pp.491-561, 567-647, 1988
  9. H. Ishiwata, 'Recent Progress in High Pressure Injection and Rate Shaping Technology for Diesel In-Line Pumps,' SAE 940194, 1994
  10. H. Ishiwata and H. Okubo, 'A New Series of Timing and Injection Rate Contrrol Systems- TICS,' SAE 880491, 1988
  11. N. Watson and M. S. Janota, 'Turbocharging the Internal Combustion Engine,' SAE 910731, 1991
  12. P. l. Herzog, L. Buergler and E. Winkhofer, P. Zenelka and W. Cartellieri, 'NOx Reduction Strategies for DI Diesel Engines,' SAE 920470, 1992