Dust-free fiber deep filtration filter element

Abstract

The invention provides a dust-free fiber deep filtration filter element. The filter element comprises a porous cylinder, wherein dust-free performance fibers which are high molecular fibers are wound on the outer circumference of the porous cylinder; a material for reducing surface energy is compounded on the high molecular fibers; the high molecular fibers can be polypropylene fibers or polyester fibers; and the material for reducing the surface energy can be polytetrafluoroethylene, organic silicon or fluororesin. The filter element has the characteristics that a high molecular fiber filter material has high air permeability and is convenient to clean, achieves the equivalent effects of a paper filter material with small filter gaps by using the dust-free characteristic of the dust-free performance fibers, and has high air permeability; effective filter area is reduced, and the overall volume of the filter element is reduced; a large-aperture air channel is formed by gaps among the fibers; due to a multi-layer structure, deep filtration is realized, and the dust storing and blocking capability is improved; and the probability that the filter material is blocked is reduced, and the service life of the filter element is prolonged.

Description

technical field [0001] The invention relates to the field of air filters for internal combustion engines, in particular to a non-stick ash fiber deep filter element. Background technique [0002] The core component of the car air filter is the filter element. The main raw material of the filter element is the filter material. The main requirements for the filter material are high filtration efficiency, low flow resistance, and continuous use for a long time without maintenance. [0003] The existing car air filter element generally uses paper folded filter material, which is characterized by surface layer filtration, small filter pores, and high filtration accuracy. The disadvantage is that the paper filter element is inconvenient to clean. Due to the small pores, it has to be folded Increase the working area of ​​the filter element to achieve the required channel area, which increases the volume of the product. At the same time, the small pores are also easy to block, resu...

AI Technical Summary

Problems solved by technology

The filter material of non-woven fabric can be cleaned with alkaline water and can be used repeatedly, but it is still unavoidable that the non-woven fabric has large pores and the leaked dust damages the engine

[0009] There is a well-known filter material on the market that uses polyester-coated needle-punched felt. It uses polytetrafluoroethylene to coat polyester or glass fiber cloth. It belongs to the surface layer filtration method and has a certain effect of not sticking to dust. Its filter pores are Formed by needle punching or stretching holes, the former has similar shortcomings to the above-mentioned patent 93222644, the latter's main problem is that the porosity and strength are relatively low, resulting in a decrease in filtration efficiency, and the filter membrane is easily damaged when the wind speed is high, generally used in vacuum cleaners , high-temperature smoke and dust bags and other aspects that do not require high filtration

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