涡流运动对稀燃汽油机排放性和经济性的影响  

Effects of Vortex Motion on Emission Performance and Economical Efficiency of Lean Burn Gasoline

作　　者：岳东鹏[1] 刘洋[1] 阎光辉[1] 李志军[2] 

机构地区：[1]天津职业技术师范大学汽车与交通学院,天津300222 [2]天津大学机械工程学院

出　　处：《小型内燃机与摩托车》2013年第5期17-19,共3页Small Internal Combustion Engine and Motorcycle

基　　金：天津市自然科学基金重点项目(项目编号:11JCZDJC23200)

摘　　要：在一台稀燃汽油机上采用了横向滑片式可变进气涡流发生装置,通过改变阀片的位置实现一定强度的涡流运动。研究了滚流运动和斜轴涡流运动下CO、HC、NO x排放以及燃油经济性随空燃比的变化关系,表明了适度的涡流运动能有效改善稀燃发动机HC、NO x的排放和提高其燃油经济性。A Variable intake vortex generator with transverse sliding vane is used in a lean burn gasoline en- gine, by changing the position of the valve plate to realize a certain intensity of vortex motion in the cylinder. With the change of air fuel ratio, emission values of CO, HC, NO and the fuel economy are analyzed respec- tively under the vortex motion and the tumble motion, and the result shows that a moderate vortex motion can effectively improve the emission performance and promote the economical efficiency.

关 键 词：稀燃汽油机 涡流运动 滚流运动 排放性 经济性 

分 类 号：TK413.31[动力工程及工程热物理—动力机械及工程]