不同调节转换装置在顺序增压系统中的应用研究  

Research on Application of Two Different Switching-Over Devices in Sequential Turbocharging System

作　　者：杨磊[1] 李云广[2] 徐思友[1] 霍学敏[1] 吴新涛[1] 潘丽丽[2] 

机构地区：[1]中国北方发动机研究所柴油机增压技术国家级重点实验室,大同037036 [2]中国北方发动机研究所,大同037036

出　　处：《内燃机工程》2015年第2期116-119,125,共5页Chinese Internal Combustion Engine Engineering

基　　金："十一五"预研项目(404020505;204010103)

摘　　要：针对目标柴油机顺序增压系统,设计了液压调节转换装置和气动调节转换装置。将这两种调节转换装置分别集成在柴油机顺序增压系统中进行对比研究,结果表明:在结构上液压调节转换装置比气动调节转换装置更紧凑;计算和验证了调节转换装置的驱动扭矩和执行动作时间,气动调节转换装置的驱动扭矩和执行动作时间均小于液压调节转换装置。两种调节转换装置还通过了进排气阀及执行机构连续动作1000次考核试验,试验结果表明:集成液压和气动调节转换装置的顺序增压系统,其主副增压器涡前最大温差均出现在排气阀关闭时,平均温差分别为28℃和219℃。In a sequential turhocharged diesel engine, two kinds of switching-over devices, hydraulic and pneumatic switching-over devices were integrated for analysis. By calculation and test validation, it is concluded that the former is more compact; driving torque and actuator current response rate of the latter are better. Durability and reliability assessment of continuous working 1000 times demonstrates that the average difference between temperatures before turbines of main and supplementary turbochargers for hydraulic switching-over device is 28℃, appearing at exhaust valve closing timing; and it reaches 219~C for pneumatic switching-over device, appearing at exhaust valve closing timing too.

关 键 词：内燃机 柴油机 顺序增压系统 转换装置 

分 类 号：TK421.8[动力工程及工程热物理—动力机械及工程]