If the filter element of the air filter is blocked, or the resistance of the air passing through increases due to quality problems, the diesel engine will suffer from insufficient air intake. If the amount of air entering the cylinder is reduced, the fuel mixture will become inappropriate (usually the mixture is too rich), and the direct result is that the fuel injected into the cylinder is not completely burned. At this point, the diesel engine may suffer from insufficient power and black smoke from the exhaust. What are the effects of a clogged diesel generator air filter? The following is a simple analysis of the dynamics in the wing.

The main components of the intake system of a diesel engine are: air filter, intake pipeline, compressor, intercooler, intake manifold, etc. These components are mainly responsible for the breathing problems of diesel engines. The intake system has a great influence on the power performance of the diesel engine. If the intake air is insufficient, the diesel engine will be indigested; if the intake air is not clean, it will lead to abnormal early wear of the diesel engine.

1. Air filter factor. The function of the air filter is to filter out dust and impurities in the air, and send clean air (or the combustible mixture of air and fuel) into the combustion chamber to reduce the amount between the piston and the cylinder liner, between the piston groups and between the valve groups. In addition, it also has the effect of suppressing the intake noise of the diesel engine.

If the filter element of the air filter is blocked, or the resistance of the air passing through increases due to quality problems, the diesel engine will suffer from insufficient air intake. If the amount of air entering the cylinder is reduced, the fuel mixture will become inappropriate (usually the mixture is too rich), and the direct result is that the fuel injected into the cylinder is not completely burned. At this point, the diesel engine may suffer from insufficient power and black smoke from the exhaust.

2, the intake pipe factors. There is usually a rubber hose connection in the connecting pipeline from the air filter to the intake manifold of the diesel engine (for a supercharged diesel engine, it is the intake port of the compressor). If for some reason the hose is compressed or damaged by internal peeling, etc., it will affect the amount of air passing through, and the result is the same as the blockage of the air filter. It will also lead to the phenomenon of insufficient power of the diesel engine due to insufficient intake air.

3. If the air filter is of poor quality or the intake line is damaged or the air is short-circuited and unclean air enters the cylinder, it will cause serious wear of the cylinder liner, piston and piston ring of the diesel engine. And cause the diesel engine exhaust blue, black smoke and lack of power, burning oil and other failures.

4. The influence of the booster system. The purpose of the exhaust gas turbocharging system of the diesel engine is to increase the air pressure entering the cylinder, thereby increasing the air density entering the cylinder, and achieving the purpose of increasing the fuel injection amount and increasing the power. When the boost pressure is insufficient for some reasons or the pipeline after the turbocharger compressor (such as the intercooler, intake manifold interface, etc.) is blocked or leaked, the diesel engine will also have problems such as power drop due to insufficient intake air. In addition, if the gasket at the intake port on the cylinder head is damaged and the seal is not tight, the boost pressure will be reduced, which will also lead to insufficient power failure of the diesel engine.

5. When the diesel engine runs normally at idle speed but emits black smoke when running under load, it is very likely that the air filter is blocked and the air intake is insufficient. At this time, you can remove the air filter element for a short time and start the diesel engine with load. If the black smoke disappears, it means that the air filter element is blocked, and the air filter element needs to be cleaned or replaced.

6. If the diesel engine always has abnormal wear of cylinders and pistons for unknown reasons, after excluding factors such as the quality of accessories and oil quality, the unclean air intake of the intake system should be the main reason. At this time, the entire intake system from the air filter intake port to the intake manifold intake port on the cylinder head should be carefully checked for damage or air short-circuit, especially pay attention to whether some special-purpose interfaces on the intake pipe cause air short-circuits, etc.

7. Under normal circumstances, the air filter element should be maintained regularly.