柴油机在进行正常作业时,有时会冒出异色的烟,如黑烟、白烟、蓝烟等。这种现象的发生,表明了柴油机的内部已发生了某些故障,需要及时排除。柴油机冒黑烟表明在气缸中有部分柴油雾粒尚未燃烧即被排出。造成的主要原因一般有三种:一、供油量多,柴油机超负荷运行;二、喷油器喷油压力低,柴油雾化程度差;三、供油过晚,发动机的温度较低。进行排除的方法:对供油过多的柴油机,应适当减少供油量,将其控制在正常负荷之内运行;对喷油器喷油压力低的柴油机,应及时修复或更换喷油器;对供油过晚 Diesel engine in normal work, sometimes smoke smoke, such as black smoke, white smoke, blue smoke and so on. The occurrence of this phenomenon indicates that some faults have occurred inside the diesel engine and need to be promptly eliminated. Black smoke from the diesel engine indicates that some of the diesel fuel mist particles have not been burned and are discharged. The main reason for the general three: First, the fuel supply capacity, diesel engine overload operation; Second, the injector fuel injection pressure is low, the degree of diesel atomization is poor; Third, the fuel supply is too late, the engine temperature is low. To exclude: diesel engine over supply, should be appropriate to reduce the amount of fuel supply, to control its operation within the normal load; on the injector low injection pressure diesel engine, the injector should be promptly repaired or replaced; Too late for fuel