两种小型二冲程汽油机的配气方式及特点  

Valve Means and Features of Two Kinds of Small Two-stroke Gasoline Engine

作　　者：刘长生[1] 

机构地区：[1]中南林业科技大学物流学院,湖南长沙410004

出　　处：《小型内燃机与摩托车》2011年第5期84-88,共5页Small Internal Combustion Engine and Motorcycle

摘　　要：小型二冲程汽油机由于体积小、移动方便,再加上其易于起动(尤其在寒冷的冬天)、维护方便且价格较低,不但在小型手持机具中,而且在一些工程机械中(如推土机、装载机等)也大量用作其大型柴油机的起动机。然而,由于一些原因,我国目前出版的著作、教材以及发表的论文中,介绍的基本都是比较老式的活塞裙控制进气的小型二冲程汽油机,很少提及目前国际上较为先进,国内从上世纪80年代已成批生产的曲轴箱控制进气的小型二冲程汽油机。本文将这两种二冲程汽油机的配气方式及特点做了比较详细地介绍和对比。说明,曲轴箱控制进气的二冲程汽油机已是我国小型二冲程汽油机的发展方向。As Small two-stroke gasoline engine has the advantages of small size and easy to move,easy start（especially in cold winter）,easy maintenance and the price is low,it is used not only in a small hand-held equipment,but also used as the starter for large diesel engines of some construction machinery（such as bulldozers,loaders etc.）.However,for some reasons,old-fashioned small two-stroke gasoline engines whose intake is controlled by piston skirt are introduced in domestic published works,teaching materials and papers,more than the more advanced small two-stroke gasoline engine in international that＇s of mass production in domestic from 80＇of the last century and the intake is controlled by crankcase.In this article,the valve means and features of these two kinds of two-stroke gasoline engine are presented and compared.The results show that intake controlled by crankcase is the development direction of small two-stroke gasoline engine of China.

关 键 词：二冲程汽油机 活塞裙控制进气 曲轴箱单向阀控制进气 配气方式 

分 类 号：TK41[动力工程及工程热物理—动力机械及工程]