Atkinson循环发动机燃油经济性与排放性试验  

Experimental Study on Economy and Emission of Atkinson Internal Combustion Engine

作　　者：孙柏刚[1,2] 汤弘扬 陈宇航[1] 谢诚[1] 范英杰[1] SUN Bai-gang TANG Hong-yang CHEN Yu-hang XIE Cheng FAN Ying-jie(School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China Collaborative Innovation Center of Electric Vehicles in Beijing,Beijing 100081, China)

机构地区：[1]北京理工大学机械与车辆学院,北京100081 [2]北京电动车辆协同创新中心,北京100081

出　　处：《北京理工大学学报》2016年第9期905-909,共5页Transactions of Beijing Institute of Technology

基　　金：国家自然科学基金资助项目(51276019;2013DFR70170)

摘　　要：在外特性及汽油机常用工况点下，研究了高压缩比Atkinson循环发动机的燃油经济性与排放特性．研究表明：Atkinson循环发动机在外特性工况下，扭矩降低5％，有效燃油消耗率降低5％～8％左右；在2000r／min，0．2MPa与3000r／rain，0．3MPa常用工况点下，扭矩损失较小，泵气损失分别降低34％与24％，有效燃油消耗率分别降低9．0％与7．5％；负荷越低，泵气损失减少越明显；在排放特性上，NO。排放分别降低了65．0％与31．5％，HC排放增加23．7％与26．0％．To explore the economy and emission characteristics of Atkinson cycle internal combustion engine, a test was carried out for an Atkinson cycle internal combustion engine with a high compression ratio at the wide open throttle condition and the engine operating point commonly used. The test results show that, while torque outputs reduce by 5%, the brake specific fuel consumption （BSFC） was decreased by 5%;8%. When the engine was fixed at 2 000 r/rain,0. 2 MPa and 3 000 r/min,0.3 MPa, the PMEP was decreased by 34% and 24%, the BSFC was decreased by 9% and 7.5%. The lower the load, the more obviously the PMEP decreases. For the emission characteristics, NOx was decreased by 65% and 31.5%, HC was increased by 23 % and 27 %.

关 键 词：混合动力 Atkinson循环 泵气平均有效压力 燃油消耗率 NOx 

分 类 号：TK147[动力工程及工程热物理—热能工程]