增压器结构参数对非道路直喷式柴油机排放性能的影响  

Effects of Turbocharger Structure Parameters on Exhaust Emissions of a Non-Road Direct Injection Diesel Engine

作　　者：李博[1] 楼狄明[1] 谭丕强[1] 胡志远[1] 孔桂香 杨辉 

机构地区：[1]同济大学汽车学院,上海201804 [2]上海纽荷兰农业机械有限公司

出　　处：《内燃机工程》2008年第3期52-55,共4页Chinese Internal Combustion Engine Engineering

摘　　要：结合某型增压柴油机的开发研制过程,为合理匹配柴油机和涡轮增压器,设计了不同0-0截面积的涡轮壳,不同进口直径的压气机叶轮和不同出口直径的涡轮叶轮。研究了增压器结构参数对柴油机排放和油耗的影响,排放试验参照中国非道路柴油机八工况法。试验研究结果表明,改变涡轮0-0截面面积和压气机叶轮进口直径对发动机排放和油耗影响较大,而改变涡轮叶轮出口直径作用不太明显。综合比较排放和油耗,最终选定方案8增压器与发动机匹配。In order to match the turbocharger with diesel engine rationally, turbine scrolls with different 0-0 area, compressor rotors with different inlet diameter and turbine rotors with different outlet diameter were designed. Effects of these structure parameters on emissions and fuel consumption of the engine were studied through experiments. The emmission test was conducted according to the measurement methods for exhaust pollutants from diesel engines of non-road mobile machinery （eight-mode test cycle）. Experimental results show that changing 0-0 area of turbine scroll and inlet diameter of compressor rotor have greater effects on emissions and fuel consumption of the diesel engine in comparison to changing outlet diameter of turbine rotor. Compared emissions and fuel consumption, the scheme No. 8 turbocharger was selected to match with the engine.

关 键 词：内燃机 柴油机 非道路 涡轮增压器 结构参数 排放 

分 类 号：TK421.8[动力工程及工程热物理—动力机械及工程]