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

The Korean Society of Mechanical Engineers (대한기계학회)
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LPi Engine Combustion and Emission Characteristics Depending on LPG Properties from Various Fuel Supply Types by Using DC Motor Type Fuel Pump

DC모터형 연료펌프를 이용한 연료공급방식별 LPG성상에 따른 LPi엔진 연소 및 배출가스 특성

  • 김주원 (고려대학교 대학원 기계공학과) ;
  • 황인구 (고려대학교 대학원 기계공학과) ;
  • 명차리 (고려대학교 기계공학부) ;
  • 박심수 (고려대학교 대학원 기계공학부)
  • Published : 2008.12.01
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Abstract

This study is mainly focused on the assessment of return, semi return, and returnless fuel supply system for an LPi engine. In order to compare the return type with returnless one with various LPG blends, combustion analysis and cyclic THC emission characteristic were tested at the part load operating condition of the LPi engine. Considering heat balance of each fuel supply systems, pressure and temperature increment of return type showed lower at the fuel rail during idle warm up operation. However, those of returnless type at LPG tank maintained stable and slow increment because the heat transfer from the LPi engine was minimized. Finally, hot restartability of each fuel supply systems were evaluated with the various LPG blends and fuel temperatures. As a result, semi return type has equivalent performance to return type considering combustion and emission characteristic, hot restartability performance for LPi engine.

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References

  1. Kim. D. R., 2007, "LPi Engine System," US patent 7181073
  2. Ono. H., Ishii. M., Tsusaka. S., Takigawa. B. and Fukawa. T., 2002, "Research and Development of LPG Liquid Fuel Injection System (1st. Report) Overview of Liquid Fuel Injection System and Engine Performance," JSAE 20025034
  3. Yamaguchi. S., Ishii. M., Yasujawa. H., Tsusaka. S., Takigawa. B., Ono. H. and Tanuma. M., 2003, "Research and Development of LPLi Liquid Fuel Injection System (3rd. Report)-Fuel Composition and Exhaust Emission Performance of LPG Vehicle with Liquid Injection System," JSAE 20035038
  4. Wang. Z., Deng. B., Han. Y. and Wang. H., 2002, "Combustion and Emissions Characteristics of a Small Spark-Ignited LPG Engine," SAE 2002-01-1738
  5. Lutz. B., Stanglmaier. R. and Matthews. R., 1998, "The Effects Of Fuel Composition, System Design, And Operating Conditions on in-System Vaporization and Hot Start of a Liquid-Phase Lpg Injection System," SAE 981388, pp. 43-60
  6. Lim. M. C., Myung. C. L., Park. S. S., Park. J. N. and Kim. S. K., 2007, " The Study of Flow Rate Performance and Engine Application with LPG Composition Rate For LPi Fuel Supplying System Consisted of Turbine Type Pump," Transactions of KSAE, Vol. 15, No. 3, pp. 99-105
  7. Kwak. H. C., Myung. C. L. and Park. S. S., 2007, "Experimental Investigation on the Time Resolved THC Emission Characteristics of Liquid Phase LPG Injection (LPLi) Engine During Cold Start," Fuel 86, pp. 1475-1482 https://doi.org/10.1016/j.fuel.2006.11.023
  8. Wang. Z., Deng. B., Han. Y. and Wang. H., 2002, "Combustion and Emissions Characteristics of a Small Spark-Ignited LPG Engine," SAE 2002-01-1738, pp. 1-6
  9. Cipollone. R. and Villante. C., 2004, "Model- based A/F Control for LPG Liquid-Phase Injected SI ICEs," SAE 2004-01-2958
  10. Hwang. I. G., Choi. S. W., Myung. C. L., Park. S. S. and Lee. J. S., 2007, "Experimental Study on Firing Test of LPI Engine Using Gasoline Fuel for Improving the Production Process at End of Line," Transactions of KSAE, Vol. 15, No. 3, pp. 133-140