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Analyze the cause of black smoke from rental equipment of Cummins generators in Dongguan

人气:: Article Source: Popularity :: Issuing time: 2018-10-22 15:45:04
Analyze the cause of black smoke from rental equipment of Cummins generators in Dongguan
This phenomenon indicates that part of the diesel atomized particles in the cylinder are discharged without burning.
There are generally three reasons for analysis:
One is that the fuel supply is too much and the diesel engine is overloaded;
The second is that the fuel injection pressure of the injector is low and the degree of diesel atomization is poor;
Third, the fuel supply was too late, and the engine temperature of Dongguan Cummins Generator was low.
Troubleshooting method: For diesel engines with excessive fuel supply, appropriately reduce the fuel supply and control the operation within normal load; for diesel engines with low fuel injection pressure, repair or replace the fuel injectors in time to increase the fuel injection pressure; Regarding the Dongguan Cummins generator whose fuel supply is too late, the fuel supply advance angle should be adjusted. When adjusting, first unscrew the two screws that fix the keyboard on the timing gear, and turn the keyboard clockwise to make the fuel supply advance angle of 16-19 degrees and the relative range of 22.5-28.5 mm. At the same time, make the engine The temperature was maintained at 80-90 ° C. There should also be no high or low water temperature of the generator. http://ftfan.cn/
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