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Arabian Journal for Science and Engineering

, Volume 44, Issue 2, pp 1393–1401 | Cite as

The Effect of Coupling Injection Parameters and Double-Swirl Chamber on the Diesel Engine Performance

  • Xinhai Li
  • Yong ChengEmail author
  • Zhenlin Zhang
  • Shaobo Ji
Research Article - Mechanical Engineering

Abstract

In order to analyze the dynamic and emission performance of diesel engine equipped with a double-swirl combustion chamber, the effect of the start of injection (SOI), the spray angle (\(\alpha \)), the protruded height of injector (\({H}_{{\mathrm{inj}}}\)) and the coupling of them on spray, combustion and emissions of diesel engine is investigated by using the simulation model which is validated by experiment data. Results reveal that on the condition of \(\hbox {SOI}=715{^{\circ }}\hbox {CA}\), it exhibits higher peak cylinder pressure and better emission performance under a constant \({H}_{{\mathrm{inj}}}\) and \(\alpha \) for the double-swirl combustion chamber. A narrow spray angle is suitable for the small SOI, while a large spray angle is suitable for the large SOI. If the injection timing is located at ATDC, a small \(\alpha \) should be selected when matching the injection system and the double-swirl combustion chamber. Furthermore, the sensitivity of \({H}_{\mathrm{inj}}\) to diesel performance will increase with the increase in \(\alpha \) and with the decrease in SOI.

Keywords

Spray angle Start of injection Protruded height of injector Double-swirl chamber 

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Copyright information

© King Fahd University of Petroleum & Minerals 2018

Authors and Affiliations

  1. 1.School of Energy and Power EngineeringShandong UniversityJinanChina
  2. 2.Qingdao Hai Xi Marine Diesel Co., LtdQingdaoChina

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