《小型拖拉机和农机具的使用》辅导讲座 第二讲 保证充足的进气

• 出 处: 农业机械
• 发表日期: 1985年02期
• 关键词: 进气过程 小型拖拉机 进气 气缸 农机具 喷油泵 工作过程 功率 供油量 油耗

发动机各个工作过程进行的好坏,对发动机的性能有决定性影响,尤其是进气过程。在进气过程中能否向气缸充入充足的新鲜空气,在很大程度上决定发动机功率的大小和油耗的高低。空气和燃料是形成燃烧的两个基本要素,没有空气就不会有燃烧。但是,不少驾驶员常常忽视这一点,以为只要向气缸内多供油,发动机就能多作功,因此,他们往往随意增大喷油泵的供油量,结果,由于空气不足,燃油不能正常燃烧,非但不能增加功率,

The performance of each engine process is good or bad, the performance of the engine has a decisive influence, especially the intake process. Whether the cylinder can be filled with sufficient fresh air during the intake process largely determines the size of the engine power and the fuel consumption level. Air and fuel are the two basic elements that form a combustion that does not burn without air. However, many drivers often neglect this point, thinking that as long as more fuel is supplied to the cylinder, the engine can do more work. Therefore, they often increase the fuel supply to the fuel injection pump. As a result, the fuel can not be normal due to insufficient air Burning, not only can not increase power,