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Experimental Study on Combustion Noise Control of Diesel Engine with lnjection

机译：喷油柴油机燃烧噪声控制的实验研究。

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摘要

Combustion noise of diesel engine plays a most important role in the whole noise of diesel engine; therefore, research on combustion noise receives more and more recognition. It can achieve a higher injection pressure as well as it is easier to be controlled for a diesel engine with high pressure common rail electronic-control DI system, which can implement accurately control to the pilot injection. Pilot injection is an effective measure to control the combustion noise for a diesel engine with high- pressure common rail electronic-control direct injection system. Based on the experiment, in this paper, the influence of the pilot injection variables under different working conditions on the combustion noise was analyzed in details. The pilot injection variables include the pilot injection timing, pilot injection quantity and main injection timing. By analyzing of the tested data, the variables of pilot injection were optimized. As the combustion noise is optimized, the influence on the emissions and the specific fuel consumption are also considered. The result shows that it can improve the combustion noise obviously with pilot injection, and the improvement effect is much more obvious after optimizing the pilot injection strategy.
机译：柴油机的燃烧噪声在柴油机的整体噪声中起着最重要的作用。因此，对燃烧噪声的研究越来越受到人们的重视。对于具有高压共轨电控DI系统的柴油发动机，它可以实现更高的喷射压力，并且更易于控制，从而可以精确控制先导喷射。先导喷射是控制带有高压共轨电控直接喷射系统的柴油机燃烧噪声的有效措施。在实验的基础上，本文详细分析了不同工况下的先导喷射变量对燃烧噪声的影响。引燃喷射变量包括引燃喷射正时，引燃喷射量和主喷射正时。通过对测试数据的分析，优化了先导注入的变量。由于优化了燃烧噪声，因此还考虑了对排放的影响和特定的燃料消耗。结果表明，采用先导喷射可以明显改善燃烧噪声，优化先导喷射策略后，其改善效果更为明显。

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  • 来源
  • 会议地点 Harbin(CN)
  • 作者

    Zhen Xu; rnLin Cheng; rnXingquan Xiong;

  • 作者单位

    Haitao Zhou@School of Energy and Power Engineering, Dalian University of Technology, Dalian City, Liaoning Province, China--Dongxin Xue@School of Energy and Power Engineering, Dalian University of Technology, Dalian City, Liaoning Province, China--Ping Wang@School of Energy and Power Engineering, Dalian University of Technology, Dalian City, Liaoning Province, China--Xigeng Song@School of Energy and Power Engineering, Dalian University of Technology, Dalian City, Liaoning Province, China--;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 船舶工程;
  • 关键词

    high pressure common rail; pilot injection; combustion noise; optimum control;

    机译：高压共轨；先导喷射；燃烧噪声；最佳控制;

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