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内燃发动机是燃料在气缸内部进行燃烧产生的热能转化为机械能的一种机器。农用内燃发动机种类较多,按使用燃料分为柴油机、汽油机;按点火方式分为点燃式、压燃式;按冲程次数分为二冲程、四冲程;按气缸数目分为单缸、双缸、多缸;按气缸排列形式分为直列式、卧式、V型式;按冷却方式分为水冷式、风冷式。掌握农用内燃机的工作原理以及安装使用,对于延长农机使用寿命和农机安全生产作业意义重大。
An internal combustion engine is a machine that converts the heat energy produced by the combustion of fuel inside a cylinder into mechanical energy. There are many types of agricultural internal combustion engines, which are divided into diesel engines and gasoline engines according to the used fuel. Ignition-type and pressure-ignition-type are adopted according to the ignition mode. They are divided into two-stroke and four-stroke according to the stroke times. Multi-cylinder; By cylinder arrangement is divided into inline, horizontal, V-type; according to the cooling method is divided into water-cooled, air-cooled. To master the working principle of agricultural internal combustion engine and to install and use it is of great significance to prolong the service life of agricultural machinery and safe operation of agricultural machinery.