摘要
建立带有EGR系统的汽油机一维计算模型,研究了汽油机外部废气再循环对NEDC循环工况节油性能的影响,并对固定的转速及负荷工况下,EGR率与比油耗的关系进行了分析,并进行了试验验证,模拟分析结果与试验结果吻合良好,表明通过在排气歧管上将废气再循环引入进气系统能够在保证发动机动力性能的前提下,减小泵气损失,从而降低发动机的比油耗。
According to the basic structure of the actual gasoline, we establish one-dimensional computational model for gasoline engine with EGR system, study gasoline external EGR on NEDC driving cycle fuel economy of influence, and a fixed speed and load conditions Relation, EGR rate and specific fuel consumption were analyzed and verified by experiments, simulation and experimental results Good agreement, suggesting that by the introduction of exhaust gas recirculation manifold intake system will be able to ensure the engine power.Under the premise of energy, reduce the pumping loss, thereby reducing the engine＇s specific fuel consumption.
出处
《内燃机》
2015年第5期8-10,37,共4页
Internal Combustion Engines
关键词
汽油机
EGR
节油
gasoline engine
EGR
fuel economy
作者简介
钱德猛（1976-），男，博士，高级工程师，长期从事内燃机的设计研究工作。
