内燃机工程2018，Vol.39Issue(1)：1-7,7.DOI:10.13949/j.cnki.nrjgc.2018.01.001
进气压力对汽油低温压燃的影响
Effects of the Intake Pressure on Gasoline Low Temperature Compression Ignition
摘要
Abstract
The gasoline compression ignition combustion and emissions characteristics at different inj ection timings and internal exhaust gas recirculation(EGR)rates were investigated by changing the intake pressure on a single-cylinder diesel engine equipped with a electrohydraulic variable valve actuator system.The control area for the gasoline engine to achieve high-efficient,clean and stable low temperature combustion(i.e.,COVIMEP<5 %,NOx<0.4 g/(kW·h),Smoke<0.1 FSN,CO and HC as low as possible)was explored and discussed.The internal EGR was achieved by opening the exhaust valve twice during the intake process,where the engine speed and fuel injection were fixed at 1 500 r/min and 28 mg/cycle respectively.Results show that under the synergistic control of early fuel inj ection timing,low EGR rate and proper intake pressure (0.1 2 MPa),the engine fueled by RON 93 gasoline can achieve high-efficient and clean combustion at the IMEP of about 0.47 MPa.关键词
汽油燃料/低温燃烧/压燃/进气压力/内部废气再循环Key words
gasoline fuels/low temperature combustion/compression ignition/intake pressure/internal exhaust gas recirculation分类
能源科技引用本文复制引用
张翔宇,郑尊清,黄树和,李研芳,祝宇轩,尧命发..进气压力对汽油低温压燃的影响[J].内燃机工程,2018,39(1):1-7,7.基金项目
国家自然科学基金项目(51576138) （51576138）
天津市人才发展特殊支持计划National Natural Science Foundation of China(51576138) （51576138）
Special Program of Talents Development in Tianjin （）
