HCCI汽油机配气方案设计与试验研究  

Valve Timing Design and Experiment Research on a Gasoline HCCI Engine

作　　者：葛强强[1] 王志[1] 杨俊伟 张志福 田国弘[1] 王建昕[1] 

机构地区：[1]清华大学,汽车安全与节能国家重点实验室,北京100084 [2]奇瑞汽车工程研究院前沿技术部,芜湖241009

出　　处：《汽车工程》2008年第2期126-129,110,共5页Automotive Engineering

摘　　要：针对奇瑞缸内直喷2.0L发动机,利用耦合详细化学反应动力学的发动机循环模拟计算,优化设计了HCCI配气方案,这是国内率先在多缸4冲程产品汽油机上实现了HCCI燃烧,缸内循环波动和缸间循环波动小于2%,并大幅度降低了油耗和NOx的排放。An engine cycle simulation is conducted using CFD code BOOST cgupled with chemical kinetics code CHEMKIN to optimize the valve timing scheme for HCCI in a Chery 2.0L GDI engine. This is the first time in China to realize HCCI combustion in a multi-cylindex; gasoline engine. The results show that the coefficients of cycleto-cycle variation both within and between cylinders are less than 2% , and the fuel consumption and NOx emission are greatly reduced.

关 键 词：HCCI 汽油直喷 模拟计算 试验研究 汽油机 配气方案设计 

分 类 号：U464.171[机械工程—车辆工程]