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在ＩＳＵＺＵＬ６ＴＣ型增压中冷直喷式柴油机上进行了排气再循环（ＥＧＲ）试验。分析研究了在增压中冷柴油机上采用不同的ＥＧＲ系统，以及在不同负荷下ＥＧＲ率对其排放特性的影响，同时给出了ＥＧＲ降低柴油机ＮＯｘ排放的具体效果
An exhaust gas recirculation (EGR) test was performed on an ISUZUL 6TC supercharged intercooled direct injection diesel engine. The effects of EGR rate on its emission characteristics under different loads are analyzed and studied, and the specific effects of EGR on reducing the NOx emission of diesel engine are given.