多方向可視化エンジンを用いたディーゼル筒内計測技術(熱工学,内燃機関,動力など)

概要

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For development and analysis of new diesel combustion system which fulfills the features of common-rail injection system such as multiple injections, an advanced single-cylinder optically accessible engine with very wide observation field was developed. The combustion chamber of this engine can be optically accessible from three directions of top, bottom, and side. In addition to direct observation of phenomena in the piston cavity and the squish area, 2-dimentional laser diagnostics in arbitrary cross sections are possible. In this paper, we introduce the details of this engine and examples of in-cylinder visualization with this engine; 1) direct observation of the soot reduction mechanism of after injection, 2) visualization of mixture formation of pilot injection using LIF, 3) validation of an in-cylinder EGR stratification technique by LIF measurement.
社団法人日本機械学会の論文
2008-04-25