International Journal of Automotive Technology

The Korean Society of Automotive Engineers (한국자동차공학회)
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STUDY ON COMBUSTION CHARACTERISTICS AND APPLICATION OF RADIAL INDUCED IGNITION METHOD IN AN ACTUAL ENGINE

  • PARK J. S. (Department of Mechanical Engineering, Dong-A University) ;
  • KANG B. M. (Department of Mechanical Engineering, Dong-A University) ;
  • KIM K. J. (Department of Mechanical Engineering, Dong-A University) ;
  • LEE T. W. (School of Automobile and Machine, Changwon Junior College) ;
  • YEOM J. K. (Department of Mechanical Engineering, Dong-A University) ;
  • CHUNG S. S. (Department of Mechanical Engineering, Dong-A University)
  • Published : 2005.12.01
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Abstract

This experimental study was executed to obtain basic data for actual engine operation using radical induced ignition method (RI) which can achieve emission reduction and high efficiency due to the rapid bulk combustion. In this study, a direct injection diesel engine was converted into SI type engine with a sparkplug. The modified SI type engine can be divided into two classes. One is the SI engine with a sparkplug only at the cylinder head, and the other is the SI engine with the sparkplug which is enveloped in a sub-chamber. Also, a basic experimental was conducted in order to investigate combustion mechanism of radical induced injection before the experiment execution for actual engine using the modified SI engine. The bulk combustion phenomenon of radical induced ignition method was analyzed from the basic experiment by using a constant volume chamber. Volume value of sub-chamber used in this experiment is approximately $0.2\%$ of one of the main combustion chamber. In this paper, combustion characteristics using radical induced injection method was compared with that of using spark ignition method according to change in the engine speed and equivalence ratio. As a result, in the case of the radical induced injection engine, the combustion duration and cycle variation were respectively reduced ranged from $\Phi$(equivalence ratio)=0.8 (lean mixture ratio) to $\Phi$=1.0 (stoichiometric ratio).

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References

  1. Aoyama, T., Hattori, Y., Mizuta, J. and Sato, Y. (1996). An experimental study on a premixed-charge compression ignition gasoline engine. SAE Paper No. 960081
  2. Christensen, M., Hultqvist, A. and Johansson, B. (1999). Demonstrating the multi fuel capability of a homogeneous charge compression ignition engine with variable compression ratio. SAE Paper No. 1999-013679
  3. Montagne, X. and Duret, P. (2001). What will be the future combustion and fuel-related technology challenges? IFP Int. Congress, 175-179
  4. Ohyama, Y. (2001). Engine control using combustion model. Int. J. Automotive Technology 2, 2, 53-62
  5. Olsson, J-O., Erlandsson, O. and Johansson, B. (2000). Experiments and simulation of a six-cylinder homogeneous charge compression ignition (HCCI) engine. SAE Paper No. 2000-0102876
  6. Park. J. S .. Choi. H. S .. Lee. M. J.. Lee. T. W.. Ha. J. Y. and Chung, S. S. (2002). A fundamental study to improve the ignitability of lean mixture by radicals induced injection in a constant volume combustor. FISITA, Helsinki
  7. Park, J. S., Lee, T. W., Ha, J. Y. and Chung, S. S. (2004). A study on the combustion characteristics of lean mixture by radicals induced injection in a constant volume combustor (1). Trans. Korean Society of Automotive Engineers 12, 2, 45-53
  8. Park, J. S., Kang, B. M., Lee, M. J., Ha, J. Y. and Chung, S. S. (2004). A study on the combustion characteristics of lean mixture by radicals induced injection in a constant volume combustor (2). Trans. Korean Society of Automotive Engineers 12, 3, 19-26
  9. Pascal, H. (1999). New combustion concept for internal combustion engines. Proc. the 15th Internal Combustion Engine Symp., Korea, No. 9935761