3119 アフター噴射によるディーゼルエミッションの低減特性(S46-2 着火と燃焼の応用,S46 着火と燃焼)

概要

論文の詳細を見る
The effect of after-injection on exhaust gas emissions from a DI diesel engine with a common rail fuel injection system was experimentally investigated for several operating conditions varying the fuel quantities and timings of the after-injection, the EGR rates, and engine loads. Over the whole of the operating range, some reduction in smoke emissions with after-injection can be achieved without increases in other exhaust gases or reductions in thermal efficiency. The optimum quantity of after-injection for smoke reduction is 20% of total fuel supply, and the optimum timing is set just after the main injection as near as possible. The after-injection reduces smoke emissions over a wide EGR range while smoke emissions at extremely high EGR increase slightly.
一般社団法人日本機械学会の論文
2005-09-18