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Effects of Multiple Injections in a HSDI Diesel Engine Equipped with Common Rail Injection System
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 08, 2004 by SAE International in United States
Annotation ability available
Diesel fuel injection system is the most important part of the direct-injection diesel engine and, in recent years, it has become one of the critical technologies for emission control with the help of electronically controlled fuel injection. Common rail injection system has great flexibility in injection timing, pressure and multi-injections. Many studies and applications have reported the advantages of using common rail system to meet the strict emission regulation and to improve engine performance for diesel engines.
The main objective of this study is to investigate the effect of pilot-, post- and multiple-fuel injection strategies on engine performance and emissions. The study was carried out on a single cylinder optical direct injection diesel engine equipped with a high pressure common rail fuel injection system. Spray and combustion evolutions were visualized through a high speed charge-coupled device (CCD) camera. Tests were performed at fixed engine speed with various injection and flow parameters. Engine performance, emissions and cylinder pressure were obtained and analyzed to investigate the effect of fuel injection and engine operations. It was found that pilot-injection reduced the ignition delay of main injection, then contributed to the improvement of power output by controlling the premixed combustion. The post-injection was found to be very effective in completing the oxidation process and reducing the particulate emissions even when small fuel quantities were injected. It was also found that multiple injection could reduce particulate emissions by more than 40% in some cases.
CitationPark, C., Kook, S., and Bae, C., "Effects of Multiple Injections in a HSDI Diesel Engine Equipped with Common Rail Injection System," SAE Technical Paper 2004-01-0127, 2004, https://doi.org/10.4271/2004-01-0127.
Diesel Emissions on CD-ROM from the SAE 2004 World Congress
Number: SP-1835CD; Published: 2004-03-08
Number: SP-1835CD; Published: 2004-03-08
- Wang Tsung-Cheng Han Joong-Sub Xie Xingbin Lai Ming-Chia Henein Naeim A. Schwarz Ernest Bryzik Walter “Direct Visualization of High Pressure Diesel Spray and Engine Combustion” SAE Paper 1999-01-3496
- Lapuerta Magin Armas Octavio Hernandez Juan Jose “Effect of the Injection Parameters of a Common Rail Injection System on Diesel Combustion Through Thermodynamic Diagnosis” SAE Paper 1999-01-0194
- Henein N.A. Singh I.P. Zhong L. Lai M-C. Bryzik W. “New Integrated “O.P.E.R.A.S.” Strategies for Low Emissions in HSDI Diesel Engines” SAE Paper 2003-01-0261
- Yamaki Yoshihisa Mori Kazutoshi Kamikubo Hiroshi Kohketsu Susumu Mori Kohji Kato Testsuro “Application of Common Rail Fuel Injection System to a Heavy Duty Diesel Engine” SAE Paper 942294
- Stone Richard Introduction to Internal Combustion Engines 2nd Macmillan 1992
- Chen S. Kevin “Simultaneous Reduction of NOx and Particulate Emissions by Using Multiple Injection in a Small Diesel Engine” SAE Paper 2000-01-3084
- Dec John E. Espey Christoph “Ignition and Early Soot Formation in a DI Diesel Engine Using Multiple 2-D Imaging Diagnostics” SAE Paper 950456
- Beatrice C. Belardini P. Bertoli C. Del Giacomo N. Migliaccio Ma. “Downsizing of Common Rail D.I. Engines: Influence of Different Injection Strategies on Combustion Evolution” SAE Paper 2003-01-1784
- Durnholz Manfred Endres Helmut Frisse Peter “Preinjection A Measure to Optimize the Emission Behavior of DI-Diesel Engine” SAE Paper 940674
- Minami Toshitaka Takeuchi Kouichi Shimazaki Naoki “Reduction of Diesel Engine NOx Using Pilot-injection” SAE Paper 950611
- Zhang Long “A Study of Pilot-injection in a DI Diesel Engine” SAE Paper 1999-01-3493
- TSURUSHIMA Tadashi ZHANG Long ISHII Yoshinori “A Study of Unburnt Hydrocabon Emission in Small DI Diesel Engines” SAE Paper 1999-01-0512
- Koyanagi K. Oing H. Renner G. Maly R. “Optimizing Common Rail-Injection by Optical Diagnostics in a Transparent Production Type Diesel Engine” SAE Paper 1999-01-3646
- Block B. Westphal H. Oppermann W. Hentschel W. Henning H. Kutschera I. “Optical Detection of the Combustion produced by the Pre-Injected Fuel in a DI Diesel Engine” SAE Paper 2002-01-2667
- Corcione Felice E. Vaglieco Bianca M. Corcione Giuseppe E. Lavorgna Mario “Potential of Multiple Injection Strategy for Low Emission Diesel Engines” SAE Paper 2002-01-1150
- Mallamo F. Badami M. Millo F. “Analysis of Multiple Injection Strategies for the Reduction of Emissions, Noise and BSFC of a DI CR Small Displacement Non-Road Diesel Engine” SAE Paper 2002-01-2672
- Mathews W. S. Coverdill R. E. Lee C. F. White R. A. “Liquid and vapor Fuel Distributions in a Small-Bore High-Speed Direct-Injection Diesel Engine” SAE Paper 2002-01-2666
- Riaud J. C. Lavoisier F. “Optimizing the multiple injection settings on an HSDI diesel engine” THIESEL 2002 Conference on Thermo- and Fluid Dynamic Processes in Diesel Engines
- Heywood John B, Internal Combustion Engine Fundamentals McGraw Hill 1988
- Henein Naeim A. Lai Ming-Chia Singh Inderpal Wang Dahai Liu Liang “Emissions trade-off and combustion characteristics of a high-speed direct injection diesel engine” SAE Paper 2001-01-0197