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英语翻译The gasoline and diesel engine are the ones used in the

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/11 18:01:30
英语翻译
The gasoline and diesel engine are the ones used in the automobile today.The gasoline engine is still the most popular form.The gasoline engine is a four-stroke,spark ignition engine.It can be either liquid-cooled or air-cooled.
There must be the right air and fuel mixture for engine combustion.The air-fuel mixture must be ignition at the corret time.
The automobile engine is usually a four-stroke engine.That is,there is intake,compression,expansion and exhaust strokes,For a gasoline engine,the intake stroke brings the fresh air and fuel.The compression stroke compression the air-fuel mixture.When the mixture is ignitioned by spark plugs,the expansion takes place.The expanding gases push down on the top of the piston,the power stroke occurs.As the piston comes up again,exhaust gases are pushed out of the engine,the exhaust stroke happens.
目前汽车上应用的是汽油和柴油发动机.汽油发动机仍然是最受欢迎的.汽油发动机是四冲程,火花点火式发动机,可以通过液体冷却或空气冷却.
发动机内的燃烧过程必须有适合空气和燃料的混合物.空气和燃料的混合物必须在正确的时间点火.
汽车发动机通常是四冲程发动机.即有进气,压缩,膨胀和排气冲程.汽油发动机的进气冲程带入新鲜的空气和燃料.压缩冲程使空气和燃料的混合物压缩.当混合物由火花塞点燃时,膨胀冲程开启.膨胀的气体推动活塞顶部向下运动产生动力冲程.当活塞再度向上,废气随之别挤出发动机,即排气冲程.