Phosphating cylinder liner on salesIntroduce the reasons why the cylinder liner is knocked

Do you know what is the reason for the cylinder liner knocking on the cylinder? Phosphating cylinder liner on sales Xiaobian will take you to a brief understanding.
1. Oil supply time is too early
When the piston of the diesel generator set moves upward and has not reached the specified fuel injection position, the fuel injector starts to inject fuel to advance the fuel combustion. sound, reduce the throttle, the knocking sound is obvious. The solution is to adjust the fuel supply advance angle, that is, increase the gasket between the fuel injection pump and the gearbox to delay the fuel supply time to the specified fuel injection time.

2. Poor fuel combustion
Too low fuel injection pressure, fuel dripping from the injector, poor atomization of fuel injection, and too late fuel supply time will all cause poor fuel combustion and cause cylinder knocking. The knocking sound caused by this type of failure is low and hoarse, accompanied by engine overheating, black smoke or exhaust pipe firing, fire and other phenomena. The fuel injector should be removed for inspection and adjustment, the fuel supply time should be adjusted, and new parts should be replaced if necessary to meet the requirements.
3. The oil outlet valve is worn
After the oil outlet valve is worn, on the one hand, the matching gap between the pressure reducing ring belt and the inner hole of the valve seat becomes larger, the sealing performance becomes worse, and the pressure reducing effect becomes worse; on the other hand, the residual pressure in the high pressure oil pipe is too high, and the oil supply increases, causing Cylinder knocking due to fuel detonation. The knocking sound is especially pronounced when the throttle is reduced.
The above is the description of Phosphating cylinder liner on sales Xiaobian: Introduction to the reasons for the knocking of the cylinder liner.