Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Experimental Study on Spray Structure of a High Pressure 6-Hole Injector by Mie Scattering Technique

미산란 기법에 의한 고압 6공 연료분사기의 분무형상에 대한 실험적 연구

  • 김성수 (신라대학교 공과대학 자동차기계공학과)
  • Published : 2008.11.01
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Abstract

The spray characteristics of a high pressure 6-hole injector were examined in a single cylinder optical direct injection spark ignition (DISI) engine. The effects of injection timing, in-cylinder charge motion, fuel injection pressure and coolant temperature were investigated using the 2-dimensional Mie scattering technique. It was confirmed that the in-cylinder charge motion played a major role in the fuel spray distribution during the induction stroke while the propagation of fuel spray was restrained during the compression stroke by the increasing pressure and the upward moving piston. In additions, it was confirmed that the liquid fuel droplets existing at the sprays edges were vaporized by the increase of the coolant temperature.

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References

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Cited by

  1. The Effect of the Intake Flow on the Spray Structure of a High Pressure 11-Hole Fuel Injector in a DISI Engine vol.33, pp.9, 2009, https://doi.org/10.3795/KSME-B.2009.33.9.722