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Spray Characteristics of LPG Direct Injection Diesel Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 03, 2003 by SAE International in United States
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In this study, spray images of LPG Blended Fuels (LBF) for DI diesel engines were observed using a constant volume chamber at high ambient temperature and pressure, and the spray characteristics of the fuel were investigated. The LBF spray started to vaporize at the injector tip and the outer downstream regions of the spray, like diesel fuel, because of the high temperature at these areas. There were more vaporized areas compared to diesel fuel. Sufficient fuel injection volume and volatility of LBF resulted in good fuel-air mixture, then, THC emissions decreased compared to diesel fuel at high load engine test conditions. Butane spray image could not be observed at the injector tip. It seems that the high temperature of the injector tip caused the butane spray to vaporize rapidly. Spray tip penetration with LBF and butane were equal or greater than with diesel fuel. The high volatility of LBF and butane had no noticeable effect on spray penetration. Spray area with LBF and butane were higher than with diesel fuel. Expansion of LBF and butane volume seems to drive the spray area higher. Equivalent cone spray angles were with all three observed fuels, ranging from 20 to 25 deg.
- Mitsuharu Oguma - New Energy and Industrial Technology Development Organization, NEDO
- Shinichi Goto - National Institute of Advanced Industrial Science and Technology, AIST
- Kouseki Sugiyama - Iwatani International Corporation
- Masataka Kajiwara - Iwatani International Corporation
- Makihiko Mori - Iwatani International Corporation
- Mitsuru Konno - Ibaraki University
- Tomohisa Yano - Ibaraki University
CitationOguma, M., Goto, S., Sugiyama, K., Kajiwara, M. et al., "Spray Characteristics of LPG Direct Injection Diesel Engine," SAE Technical Paper 2003-01-0764, 2003, https://doi.org/10.4271/2003-01-0764.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
Ci Engine Combustion Processes & Performance With Alternative Fuels
Number: SP-1737 ; Published: 2003-03-03
Number: SP-1737 ; Published: 2003-03-03
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