Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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The Spray Measurements of Gasoline, M85, E85, and LPG by a GDI Injector in a Constant Volume Chamber

정적챔버에서 GDI용 연료분사기의 가솔린, M85, E85 및 LPG 분무 계측

  • Kim, S.S. (Department of Automotive and Mechanical Engineering, Silla University)
  • 김성수 (신라대학교 자동차기계공학과)
  • Received : 2012.09.19
  • Accepted : 2012.10.11
  • Published : 2012.12.31
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Abstract

Spray structures and penetration lengths of Gasoline, M85, E85, and LPG by a GDI 6-hole fuel injector were examined in a constant volume chamber. The chamber pressure was controlled at 0.1 MPa and 0.9 MPa. The effects of fuel injection pressure and chamber pressure on the spray structures and penetration lengths were investigated using the 2-dimensional Mie scattering technique. It was found that the sprays developed linearly till ASOI 1.7ms after start of injection and vortices were happened around jets on the way of spray development. And the high chamber pressure, 0.9 MPa kept the fuel sprays development down and the penetration length was reduced to about 55% compared with that of 0.1 MPa. In additions high pressure of fuel injection, 12 MPa increased the spray penetration length more about 7~10% than that of 7 MPa.

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References

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  2. 분사조건에 따른 가솔린 직접분사용 다공 분사기에서의 LPG 분무특성 vol.19, pp.1, 2012, https://doi.org/10.15435/jilasskr.2014.19.1.001