增压柴油机变海拔增压压力恢复计算研究  

Calculation Research on Boost Pressure Recovery of Turbocharged Diesel Engines at Variable Altitudes

作　　者：李华雷[1] 石磊[1] 邓康耀[1] 邢卫东[2] 程江华[2] 祁平[2] 

机构地区：[1]上海交通大学 动力机械及工程教育部重点实验室,上海200240 [2]中国北方发动机研究所,山西大同037036

出　　处：《柴油机》2014年第4期9-13,共5页Diesel Engine

基　　金：国防基础科研计划资助项目(B0920110003)

摘　　要：基于D6114柴油机仿真模型,计算分析了原机增压器的变海拔性能。针对各海拔高度下增压压力的变化趋势,选择不同的匹配点进行了增压系统匹配调整。结果表明:变海拔条件的增压压力变化趋势在高低转速存在差异;通过增压系统匹配调整可以在部分工况实现增压压力恢复;高海拔高转速工况涡轮增压器会发生超速现象;高海拔低转速工况下增压压力得到提高,但未能达到完全恢复的目标。Based on a simulation model of D6114 diesel engine, the performance of original turbocharger was calculated at different altitudes. According to the variation tendency of boost pressure, the matching adjustment was carried out at different matching points. The research results showed that the variation tendency of boost pressure differed from engine speeds at various altitudes; the boost pressure could be recovered with the matching adjustment of turbocharging system at some operating conditions; the turbocharger would over-speed at high altitudes and high speeds; the boost pressure could be improved at high altitudes and low speeds, but the target of boost pressure recovery was not achieved completely.

关 键 词：柴油机 增压 变海拔 增压压力 

分 类 号：TK422[动力工程及工程热物理—动力机械及工程]