Gasoline direct-injection engine combustion and emissions measurements and modelling

被引：1
作者：
University of Auckland, Auckland, New Zealand [1 ]
不详 [2 ]
不详 [3 ]
机构：
[1] University of Auckland, Auckland
[2] University of Oxford, Oxford
[3] Department of Engineering Science, University of Oxford, Oxford OX1 3PJ, Parks Road
来源：
Int. J. Engine Res. | 2006年 / 1卷 / 17-28期
关键词：
Combustion; Emissions measurements; Emissions modelling; Gasoline direct-injection spark-ignition engine;
D O I：
10.1243/146808705X30468
中图分类号：
学科分类号：
摘要：
Experimental measurements of exhaust emissions and combustion pressure are presented for a piston-guided direct-injection spark-ignition engine over a wide range of injection timings and ignition timings. The measurements show that the engine can be operated satisfactorily in very lean conditions (λ = 4.0) at wide-open throttle. High hydrocarbon emissions are measured at late start-of-injection conditions and with late ignition. High emissions of nitrogen oxides (NOx) occur with early start of injection and with early ignition. Modelling results show acceptable agreement with the measurements for the indicated mean effective pressure and show that high levels of NO x are produced from the inhomogeneous zones that burn close to stoichiometric conditions. It is argued that early start of injection gives rise to high NOx because of fuel mixing to conditions close to stoichiometric and burning early in the combustion process. © IMechE 2006.
引用
收藏
页码：17 / 28
页数：11
相关论文
共 10 条
  • [1] Honda T., Kawamoto M., Katashiba H., Sumida M., Fukutomi N., Kawajiri K., A study of mixture formation and combustion for spray guided DISI, SAE World Congress, (2004)
  • [2] Shayler P.J., Jones S.T., Horn G., Eade D., Characterization of DISI emissions and fuel economy in homogeneous and stratified charge modes of operation, (2001)
  • [3] Shayler P.J., Horn G., Jones S.T., Eade D., DISI engine spark and fuel injection timings -effects, compromise and robustness, (2001)
  • [4] Wyszynski L.P., Aboagye R., Stone R., Kalghatgi G., Combustion imaging in a gasoline direct injection engine, SAE World Congress, (2004)
  • [5] Wyszynski L.P., Investigation of combustion processes in a direct injection spark ignition engine, (2002)
  • [6] Ball J.K., Raine R.R., Stone C.R., Combustion analysis and cycle-by-cycle variations in spark ignition engine combustion, Part 1, Proc. Instn Mech. Engrs, Part D: J. Automobile Engineering, 212, D5, pp. 381-399, (1998)
  • [7] Ball J.K., Raine R.R., Stone C.R., Combustion analysis and cycle-by-cycle variations in spark ignition engine combustion, Part 2, Proc. Instn Mech. Engrs, Part D: J. Automobile Engineering, 212, D6, pp. 507-523, (1998)
  • [8] Raine R.R., Stone C.R., Gould J., Modelling of nitric oxide formation in spark ignition engines with a multi-zone burned gas, Combust. Flame, 102, pp. 241-255, (1995)
  • [9] Raine R.R., Wyszynski L., Stone R., Modelling of NO emissions from homogeneous and stratified charge spark ignition engines, Proc. Instn Mech. Engrs, Part D: J. Automobile Engineering, 216, pp. 403-412, (2002)
  • [10] Bowman C.T., Kinetics of pollutant formation and destruction in combustion, Prog. Energy Combust. Sci, 1, pp. 33-45, (1975)
1