1000422382 fuel fine filter element
The 1000422382 fuel fine filter element is tailor-made for Weichai WP10, WP12, WP7 and other models of engines. Precise adaptation means that it is highly compatible with the engine fuel system.
If the filter is installed in the fuel line, it is called an external filter (External); on the contrary, an internal filter (Internal) refers to the filter installed inside the fuel pump and fuel tank. The fuel tank filter or its protective cover is usually considered a maintenance-free component.
The recommended replacement cycle of the fuel filter should vary according to its own structure, performance and purpose, and cannot be generalized. Most car manufacturers recommend a replacement cycle of 48,000 km for normal maintenance of their external filters; the recommended replacement cycle for conservative maintenance is 19,200 to 24,000 km.
It is generally believed that when the diesel engine load is high, the fuel injected into the combustion chamber increases, the temperature in the combustion chamber is high, and the diesel engine mixture is unevenly formed. This will cause the combustion fuel in the combustion chamber to decompose and polymerize under high temperature and lack of oxygen to form carbon smoke (carbon black). Carbon smoke is not pure carbon but a polymer. The main component is carbon (more than 85%), but it also contains a small amount of oxygen, hydrogen and ash, and its composition varies with the load of the diesel engine. The black smoke is collected through a filter and placed under an electron microscope. It can be seen that the diameter of large carbon smoke particles is about 0.05μm.
The high-temperature cracking reaction in the diesel engine is inevitable, especially in the diesel engine with mixed combustion in space. The high-temperature gas surrounds the liquid oil droplets, creating the most favorable conditions for the cracking reaction. High-speed photography of the combustion process proves that a large amount of black smoke will appear around the top dead center, but in general, the carbon smoke can find air in the subsequent combustion and burn completely, so that the exhaust is free of black smoke.
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