|Title||Seungmook Oh, Yonggyu Lee, Kernyong Kang, Youngmin Woo and Choongsik Bae, "Fuel Stratification in a Liquid Phase LPG Injection Engines," SAE 2003-01-1777, 2003 JSAE/SAE International Fuel & Lubricants Meeting, Yokohama, May 2003.|
Seungmook Oh, Yonggyu Lee, Kernyong Kang, Youngmin Woo and Choongsik Bae, “Fuel Stratification in a Liquid Phase LPG Injection Engines,” SAE 2003-01-1777, 2003 JSAE/SAE International Fuel & Lubricants Meeting, Yokohama, May 2003.
To investigate the mixture distributions in an LPG engine with Liquid phase port injection for heavy duty vehicles, an optical single cylinder engine, which is optically accessible both in side and bottom view, and laser diagnostic system were incorporated to apply PLIF (planar laser induced fluorescence) technique. Acetone was used as a dopant in LPG fuel, which was excited by KrF excimer laser (248nm), and its fluorescence images were acquired with ICCD camera. The effects of fuel injection timing, swirl intensity and excess air ratio were investigated. For the case of open valve injection, favorable stratification of fuel, both in axial and radial direction, was clearly observed compared to the closed valve injection, where reverse stratification in axial direction was observed. At the Ricardo swirl ratio of 3.4, it was apparent that excessive axial stratification of fuel got dominant, which would lead to poor engine performances.
|Previous||Dong-Seok Choi,Yongseok Lee, Jaejoon Choi and Choongsik Bae, “Characterisation of Mixture Distribution in a DISI Optical Engine under Late Injection Mode,”Proc. 1st International Conference on Optical and Laser Diagnostics (ICOLAD2002), pp71-76, Institute of Physics, London, Dec. 2002.|
|Next||Seokhwan Lee, Choongsik Bae, Jongik Jeon and Taesik Han, “Effect of Design Parameters on the Performance of Finned Exhaust Heat Exchanger,” SAE 2003-01-3076, SAE 2003 Powertrain & Fluid Systems Conference, Pittsburgh, Oct. 2003.|