可变喷嘴增压器与增压柴油机的匹配试验研究  

An Experimental Study on the Matching of Variable Nozzle Turbocharger with Turbocharged Diesel Engine

作　　者：吴君华[1] 黄震[1] 王天灵[2] 

机构地区：[1]上海交通大学内燃机研究所,上海200030 [2]吉林大学,长春130025

出　　处：《汽车工程》2005年第1期40-43,共4页Automotive Engineering

摘　　要：在CA498Z柴油机上进行了可变喷嘴增压器(VNT)的匹配试验研究。试验结果表明,VNT可以在发 动机的整个转速范围内和CA498Z柴油机实现良好的匹配。VNT显著提高了发动机外特性的低速转矩,降低了外 特性的排气烟度。扩大了该柴油机低油耗区的转速范围,改善了整机的燃油经济性。The experiment on the matching between a variable nozzle turbocharger (VNT) and CA498Z diesel engine is performed. The results show that the engine can achieve a good performance with VNT in the whole speed range. The torque of engine at low speed is raised largely, the smoke of engine is reduced remarkably, and the fuel economy is improved greatly with the speed range of low fuel consumption extended.

关 键 词：匹配试验 增压柴油机 增压器 排气烟度 喷嘴 发动机 转速 燃油经济性 低油耗 低速 

分 类 号：U464[机械工程—车辆工程] TK421[交通运输工程—载运工具运用工程]