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A comparative study of carburation and injection fuel supply methods in an LPG-fuelled SI engine

机译：液化石油气驱动的SI发动机渗碳和喷射燃料供应方法的比较研究

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摘要

In this study, a four-stroke carburettor spark-ignition (SI) engine was run using a specially designed, electronically controlled gas-phase manifold liquefied petroleum gas (LPG) injection system in a set of experiments conducted to compare the performance of different fuels and mixing systems. Experiments were carried out at 2000-4000 rpm and fixed throttle positions of 25% and 50% of full opening to determine performance parameters. During the tests, carried out in a test bed with a specially designed, electronically controlled LPG injection unit, the excess air coefficient was maintained within the range of 0.95-1.05 because the best emissions results are generally obtained in this range. The results obtained with LPG injection were compared with the results obtained for gasoline and LPG carburetion. The test results showed that the LPG gas injection system developed in this study can help to achieve higher engine power outputs, lower specific fuel consumption and lower exhaust emissions.
机译：在这项研究中，使用专门设计的电控气相歧管液化石油气（LPG）喷射系统运行四冲程化油器火花点火（SI）发动机，并进行了一组实验，以比较不同燃料的性能和混合系统。以2000-4000 rpm的转速以及全开的25％和50％的固定节气门位置进行实验，以确定性能参数。在测试过程中，在带有特殊设计的电控LPG喷射装置的测试床上进行测试，多余空气系数保持在0.95-1.05范围内，因为通常在此范围内可获得最佳排放结果。将LPG喷射获得的结果与汽油和LPG汽化获得的结果进行比较。测试结果表明，本研究开发的液化石油气注气系统可以帮助实现更高的发动机功率输出，更低的比油耗和更低的废气排放。

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  • 来源
    《Fuel》 |2013年第5期|511-517|共7页
  • 作者

    Bans Erkus; Ali Suermen; M. ihsan Karamangil;

  • 作者单位

    Uludag University, Faculty of Engineering and Architecture, Dept. of Mechanical Eng, Bursa, Turkey;

    Uludag University, Faculty of Engineering and Architecture, Dept. of Automotive Eng., Bursa, Turkey;

    Uludag University, Faculty of Engineering and Architecture, Dept. of Automotive Eng., Bursa, Turkey;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    SI engine; LPG; electronic control; carburetion; injection;

    机译：SI引擎;液化石油气;电子控制;化油注射;

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