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TitleChoongsik Bae, Sanghoon Kook and Cheolwoong Park, "Diesel Combustion Strategy and Its Extension," pp11-22, Proc. International Conference for Automotive Engineering, POSTECH, Dec. 2003.

Choongsik Bae, Sanghoon Kook and Cheolwoong Park, “Diesel Combustion Strategy and Its Extension,” pp11-22, Proc. International Conference for Automotive Engineering, POSTECH, Dec. 2003.

Abstract

DI-Diesel engine has expanded its market owing to the benefit of fuel economy. The development of high pressure injection systems such as common-rail system enables reduction of emissions and improvement of fuel consumption. The high pressure injection could reduce particulate matters (PM) by the improved fuel atomization followed by better mixing with air. Electronically controlled injectors are incorporated in common-rail fuel injection equipments (FIE) which realize the high response injection control. The faster injection operation can enhance the flexibility of fuel spray pattern and combustion phase control. Application of multiple injection strategy has been tested in an optical single-cylinder engine. Combustion characteristics and exhaust emissions were studied as a function of injection scheme. The operational excellence of diesel combustion could be potentially extended to achieve better performance through homogeneous charge compression ignition (HCCI) combustion. It has the advantages of reduced NOx emission resulting from the low combustion temperature under homogeneous charge lean burn conditions, and reduced PM by the premixed combustion. The application of early diesel injection for near-homogeneously premixed charge was tested in the same optical engine, where the combination of coolflame and non-luminous premixed combustion. HCCI combustion has been investigated with the variety of fuel injection parameters.

PreviousChoongsik Bae, “Diesel Spray Development from VCO Nozzles with Common-rail,” Paper No., ICAE2001E09, pp58-64, Proc. 2001 Int’l Conference on Automotive Engineering, Seoul, Dec. 2001.
NextSeoksu Moon, Jaejoon Choi, Essam Abo-Serie and Choongsik Bae, “The Effects of Injection Methods and EGR on Combustion and Emission Characteristics of a Single Cylinder DISI Engine,” CF03, 6th KSME-JSME Thermal and Fluids Engineering Conference, Jeju, Mar. 2005.
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