Quickly Known the Engine Air Filters

Quickly Known the Engine Air Filters

Why have to use the engine air filters?

The engine needs to suck in a large amount of air during the working process. If the air is not filtered, the dust suspended in the air is sucked into the cylinder, which will accelerate the wear of the piston group and the cylinder. Larger particles enter between the piston and the cylinder, causing a serious “the cylinder Scoring of Engine“, which is especially severe in dry and sandy working environments. The air filter is installed in front of the carburetor or the intake pipe to filter out dust and sand in the air to ensure sufficient and clean air in the cylinder.

3 Types of Car Engine Air Filters

engin air filterAccording to the filtration principle, the air filter can be divided into several types: filter type, centrifugal type, oil bath type and composite type. The air filters commonly used in engines mainly include inertial oil bath air filters, paper air filters, and foam filters.

Oil Bath Air Filter

The inertia oil bath type air filter has the advantages of small air intake resistance, can adapt to a dusty and sandy working environment, and has a long service life. It has been used in various types of automobiles and tractor engines. However, such air filters have been gradually eliminated due to their low filtration efficiency, heavy weight, high cost, and inconvenient maintenance.

Paper Air Filter

The paper air filter is made of resin-treated microporous filter paper. The filter paper is engin filterporous, loose and pleated, has certain mechanical strength and water resistance, and has high filtration efficiency, simple structure, light weight and cost. Low, easy to maintain, etc. It is currently the most widely used automotive air filter.

Foam Air Filter

The foam air filter is made of soft, porous and sponge-like polyurethane. It has strong adsorption capacity. This air filter has the advantages of paper air filter, but the mechanical strength is low. It is widely used in car engines.

The latter two air filters have the disadvantage of a short service life and unreliable operation under harsh environmental conditions.

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