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Communication/Energy Storage Battery Separator
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Air filter element is a type of filter, also known as air filter cartridge, air filter, style, etc. Mainly used for air filtration in engineering locomotives, automobiles, agricultural locomotives, laboratories, sterile operating rooms and various precision operating rooms.
The engine needs to suck in a lot of air during the working process. If the air is not filtered, the dust suspended in the air will be sucked into the cylinder, which will accelerate the wear of the piston group and the cylinder. Larger particles entering between the piston and the cylinder can cause serious "pulling the cylinder", which is especially serious in dry and sandy working environments. The air filter is installed in front of the carburetor or the intake pipe, and plays the role of filtering out dust and sand in the air, so as to ensure that sufficient and clean air enters the cylinder.
According to the filtration principle, air filters can be divided into filter type, centrifugal type, oil bath type and compound type. The air filters commonly used in engines mainly include inertial oil bath air filters, paper dry air filters, and polyurethane filter element air filters. The inertial oil bath air filter has undergone three-stage filtration: inertial filtration, oil bath filtration, and filter filtration. The latter two types of air filters are mainly filtered through the filter element. Inertia oil bath air filter has the advantages of small air intake resistance, can adapt to dusty and sandy working environment, and has long service life. However, this kind of air filter has low filtration efficiency, heavy weight, high cost and inconvenient maintenance, and has been gradually eliminated in automobile engines. The filter element of the paper dry air filter is made of resin-treated microporous filter paper. The filter paper is porous, loose, folded, has a certain mechanical strength and water resistance, and has the advantages of high filtration efficiency, simple structure, light weight and low cost. It has the advantages of low cost and convenient maintenance, and is the most widely used air filter for automobiles at present. Polyurethane filter element The filter element of the air filter is made of soft, porous, sponge-like polyurethane with strong adsorption capacity. This air filter has the advantages of a paper dry air filter, but has low mechanical strength and is used in car engines. more widely used. The disadvantage of the latter two types of air filters is that they have a shorter lifespan and are unreliable in harsh environmental conditions.
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