直接噴射による希薄自着火燃焼に関する基礎的研究(熱工学,内燃機関,動力など)

概要

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In order to obtain strategies for controlling ignition timing and heat release rate in directinjection PCCI combustion, a fundamental study was carried out using a constant volume vessel. Effects of injection quantity, injection pressure, nozzle orifice diameter and ambient oxygen concentration were investigated under PCCI-like ambient conditions. The results show that a low oxygen concentration reduces increase in peak heat release by increase in injection pressure and equivalence ratio. Enhanced mixing causes rapid heat release at higher overall equivalence ratios and an usual oxygen concentration; however, it brings about delayed and reduced heat release at lower overall equivalence ratios or a lower oxygen concentration.
社団法人日本機械学会の論文
2006-02-25