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汽车排气管冒烟,到底是怎么回事?

来源:http://www.jnrunao.com/ 日期:2020-09-02 发布人:runao
我们开车在路上经常会遇到排气管冒烟的情况,有些新手司机不懂,就容易手足无措,以为车子哪里出故障了。虽然冒烟需注意,但也得分情况,不同颜色的烟代表着不同的症状,看看你都了解吗? 一般比较常见的尾气颜色分别为白色、蓝色和黑色。
We often encounter exhaust pipe smoke when driving on the road. Some novice drivers don't understand it, so they easily feel at a loss and think that there is something wrong with the car. Although smoking needs attention, but also scores, different colors of smoke represent different symptoms, see you all understand? Generally, the common exhaust gas colors are white, blue and black.
首先是白色的尾气,表示发动机燃油燃烧充分,一般出现白烟都会消失的快,有时候还伴有水滴,证明发动机是健康正常的。因为可燃混合气进入发动机气缸内燃烧,会产生二氧化碳和水,更终经过三元催化器、消音器以及排气管会凝结成液态水,所以有的时候排气管会出现滴水现象。当气温比较低比如冬天的时候,由于物理效果,排气管就会出现“白烟”的现象。
First of all, the white tail gas indicates that the engine fuel is fully burned. Generally, white smoke will disappear quickly, sometimes accompanied by water droplets, which proves that the engine is healthy and normal. Because the combustible mixture into the engine cylinder combustion, will produce carbon dioxide and water, and eventually through the three-way catalytic converter, muffler and exhaust pipe will condense into liquid water, so sometimes the exhaust pipe will appear drip phenomenon. When the temperature is relatively low, such as in winter, due to the physical effect, the exhaust pipe will appear "white smoke".
冷起动时排气冒白烟,发动机暖机后白烟消失应视为正常,若车辆正常运行时大量冒白烟,就需要到修理店更换密封垫了。那可能是因为气缸盖密封不严,发动机热量大量外流,使得排气管温度过高,排气里的水和二氧化碳凝结不成水滴就直接排出去了。

White smoke is emitted from exhaust during cold start. It should be regarded as normal that the white smoke disappears after the engine warms up. If the vehicle emits a lot of white smoke during normal operation, it is necessary to replace the gasket in the repair shop. That may be because the cylinder head seal is not tight, a large amount of engine heat outflow, so that the exhaust pipe temperature is too high, the water and carbon dioxide in the exhaust can not condense into water droplets, and then directly discharged.
其次,对于冒蓝烟的排气管来说,基本是存在烧机油的情况,可能是因为火花塞和气缸间隙过大,油封老化等等。建议检查发动机气缸密封是否损坏,以及更换粘度更高的机油,不然时间长了会减弱动力、增加油耗甚至出现拉缸的现象
Secondly, for the exhaust pipe with blue smoke, there is basically oil burning, which may be due to excessive gap between spark plug and cylinder, aging of oil seal, etc. It is recommended to check whether the engine cylinder seal is damaged and replace the oil with higher viscosity, otherwise the power will be weakened, the fuel consumption will be increased and even the cylinder will be pulled after a long time
就是要注意的一个,就是排气管冒黑烟,就像拖拉机的烟,一般是由于汽油燃烧不充分,导致发动机积碳。如果发动机抖动严重,排气管不仅冒黑烟还伴随不正常的声音发出,加速无力。那我们就需要到修理厂检查火花塞、氧传感器以及空气流量计灯方法来排除故障
One thing to pay attention to is that black smoke is emitted from the exhaust pipe, just like the smoke from a tractor. It is generally due to insufficient combustion of gasoline, resulting in carbon deposition in the engine. If the engine vibrates seriously, the exhaust pipe not only emits black smoke, but also makes abnormal sound, which makes acceleration weak. Then we need to go to the repair shop to check the spark plug, oxygen sensor and air flow meter lamp to eliminate the fault
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