直接噴射式予混合圧縮着火機関の運転領域と燃焼特性に関する研究 : 熱工学, 内燃機関, 動力など

概要

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Recently, pre-mixed lean mixture combustion has attracted attention, and many researchers are investigating compression ignition of a pre-mixed lean mixture. Previous research in our laboratory has shown that low NO_x emission combustion is obtained by PREDIC (PREmixed lean DIesel Combustion). However the operating region of PREDIC is limited to partial loads at low engine speed. So the operating region was researched in detail under the higher engine speed and the expansion of PREDIC operating region was tried. As the result, PREDIC was obtained at half load condition of all engine speed. In order to extend the operating region of PREDIC to the higer load conditions, avoiding the earlier ignition is necessary at high load. EGR, low compression ratio and supercharging are effective to increase the power output. And that the fuel consumption was depend on an excess air ratio, compression ratio, and boost pressure.
一般社団法人日本機械学会の論文
2001-01-25