329 低公害・高効率ガスエンジンの開発(大気環境保全技術(II))(大気・水保全技術)

概要

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Under the background of increasing concerns about environment, gaseous fuel instead of liquid fuel has been highlighted recently. Consequently, demand for gas engine has been increased. Lately, the gas engine, which is ignited with small amount of diesel fuel less than 1% instead of spark plug, has been developed. The engine is furnished with many latest technologies such as common rail system for pilot injection, VG turbocharger for air/fuel ratio control, knocking detection & control system. Thanks to these elaborated devices, the engine can be always operated at the optimum condition. These enable the engine to reach high thermal efficiency of 43.8%. At the same time, extremely low NOx value of 100 ppm (O_2=0%) has been achieved due to optimization of pilot injection.
一般社団法人日本機械学会の論文
2001-07-09