柴油机两级相继涡轮增压系统研究  

Research on Two-staged Sequential Turbocharging System for Diesel Engine

作　　者：张海波[1] 刘新田[1] 邓康耀[2] 

机构地区：[1]上海工程技术大学汽车工程学院,上海201620 [2]上海交通大学机械与动力工程学院内燃机研究所

出　　处：《小型内燃机与摩托车》2009年第1期21-24,50,共5页Small Internal Combustion Engine and Motorcycle

基　　金：上海市高校选拔培养优秀青年教师科研专项基金资助项目(06XPYQ20)

摘　　要：首先根据内燃机进排气系统一维非定常流动模拟计算"有限体积法—总变差减少"程序,在不同负荷下,对柴油机性能进行校核,模拟计算结果与试验值基本一致。然后建立柴油机两级相继涡轮增压系统模拟计算程序,并进行研究。研究表明:中低负荷的过量空气系数增大,有利于改善燃烧;油耗降低效果显著;增压压力增大,进气量增加比较明显。According to the FVM-TVD simulating program for one - dimensional unsteady flow in inlet and outlet manifold of ICE, the simulating computation of different loads is carried out on diesel engine, and the results of simulating computation are relatively close to those of experiments. Then the two-staged simulating computation program is built and studied on diesel engine. The result demonstrates that excess-air factor of middle and low loads increases, and combustion is improved; the fuel consumption rate decreases obviously; turbocharging pressure increases, and the suction air increases obviously.

关 键 词：涡轮增压 相继增压 有限体积法-总变差减少 

分 类 号：TK413.5[动力工程及工程热物理—动力机械及工程]