Types Of Car Air Filters- Hebei Zhengcan Filter Manufacturing Co. Ltd.

Types Of Car Air Filters

There are two types of car air filters, dry and wet.

Dry

It is a filter that separates impurities in the air through a dry filter element (such as a paper filter element). The air filter used in light vehicles (including cars and mini-cars) is generally single-stage. Its shape is oblate or oval and flat. The filter material is filter paper or non-woven fabric. The end cover of the filter element is metal or polyurethane, and the shell material is metal or plastic. Under the rated air volume flow rate, the original filtration efficiency of the filter element should not be less than 99.5%. Due to the harsh working environment of heavy-duty vehicles, the air filter must be the majority. The first stage is a cyclone pre-filter (such as blade ring, swirl tube, etc.), which is used to filter out coarse particle impurities, and the filtration efficiency is above 80%. filter element), its filtration efficiency is over 99.5%. There is also a safety filter after the main filter, which is used to prevent dust from entering the engine when the main filter is installed and replaced, or when the main filter is accidentally damaged. The material of the safety core is mostly non-woven fabric, and filter paper is also used.

Wet

Including oil immersion type and oil bath type. The oil-immersed type uses an oil-immersed filter element to separate impurities in the air. The filter element material includes wire fabric and foam material. The oil bath type is to introduce the inhaled dusty air into the oil pool to remove most of the dust, and then further filter when the air with oil mist flows upwards through a filter element wound by metal wire, the oil droplets and the trapped The dust returns to the oil sump together.

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