车用高压共轨轻型柴油机涡轮增压器匹配研究  

Investigation on Matching a Common Rail Light-duty Vehicle Diesel Engine and Turbocharger

作　　者：谢力[1] 汪陈芳 程晓章[2] 卫将军 XIE Li;WANG Chen-fang;CHENG Xiao-zhang;WEI Jiang-jun(Anhui Quanchai Group Engine Co.,LTD,Chuzhou 239500,China;School of Automotive and Transport Engineering,Hefei University of Technology,Hefei 230009,China;State Key Laboratory of Automotive Safety and Energy,Tsinghua University,Beijing 100084,China)

机构地区：[1]安徽全柴动力股份有限公司,滁州239500 [2]合肥工业大学汽车与交通工程学院,合肥230009 [3]清华大学汽车安全与节能国家重点实验室,北京100084

出　　处：《内燃机与配件》2018年第18期27-30,共4页Internal Combustion Engine & Parts

基　　金：国家重点研发计划重点专项资助项目(2016YFD0700800);中央高校基本科研业务费专项资金资助项目(102-4115100032)

摘　　要：文章为某车用高压共轨轻型柴油机涡轮增压器改型选取了4款新型增压器,并进行了匹配试验,根据最大负荷下的动力性、经济性及排放性能选取了合适的涡轮增压器。与匹配原型增压器的发动机相比,新发动机在保持中、高转速性能基本不变的前提下,大幅度提高了低转速下的性能。发动机1 000 r/min最大负荷工况下,最大转矩提高了5%,燃油消耗率降低了8.87%,PM、NOx、CO等主要有害排放均有明显降低。The author selects four new turbochargers to retrofit a prototype one matching with a common rail light-duty vehicle diesel engine, and the engine with different turbochargers is tested on the engine performance experiment rig. An optimal new turbocharger is picked out according to the power, economy and emission performance of the engine working at maximum load conditions of different rotate speeds. Compared with the prototype turbocharger, the performance of engine matching with the new turbocharger is greatly improved under low speed conditions keeping the performance of medium and high rotate speeds unchanged. Under the maximum load condition of 1000 r/min, the maximum torque increases by 5%; the fuel consumption rate decreases by 8.87%; the major harmful emissions, such as PM, NOx and CO decrease significantly.

关 键 词：柴油机 涡轮增压 压气机 涡轮 排放 

分 类 号：U464.172[机械工程—车辆工程]