通过喷射过氧化氢降低直喷式柴油机排放的研究  

Reduction of Exhaust Emissions from a DI Diesel Engine by Additional Injection of Hydrogen Peroxide

作　　者：方显忠[1] 刘巽俊[1] 阎淑芳[1] 金文华[1] 

机构地区：[1]吉林大学汽车工程学院,吉林长春130025

出　　处：《内燃机学报》2003年第3期239-242,共4页Transactions of Csice

摘　　要：在单缸直喷柴油机上利用第2个喷嘴向燃烧室内喷射过氧化氢(H2O2),对其降低柴油机排烟消光度和NOx的效果进行了试验验证,研究了每循环过氧化氢的喷射量和喷射定时对降低柴油机烟度的影响。当含30%(V)H2O2的水溶液的喷射量为柴油的一半时,柴油机的动力性和燃油经济性改善了4%左右,排气烟度可下降30%左右,且NOx也略有减少。Reduction possibility of exhaust smoke opacity and NOx emissions from a DI diesel engine by means of additional injection of hydrogen peroxide (H2O2) through a second injector was experimented.Effects of H2O2 injection quantity per cycle and its injection timing on smoke opacity were studied and positive results were obtained. Injecting 30%(V/V) H2O2aqueous solution in about half as much as injected diesel fuel leads to 30% reduction of exhaust smoke opacity with 4% gains of diesel power output and fuel economy as well as slight alleviation of NOx emission.

关 键 词：直喷式柴油机 过氧化氢 H2O2 排烟消光度 氮氧化物 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]