Automobile fuel filter core

Abstract

The invention relates to an automobile fuel filter core. The automobile fuel filter core comprises a filter core body and an end cover. One end of the filter core body is provided with an opening, and the end cover is arranged at the opening end of the filter core body and provided with a first through hole communicated with the opening. The automobile fuel filter core is characterized in that the filter core body is made of HMW (high molecular weight) polyethylene materials and comprises internal filter pipes and external filter pipes, the internal filter pipes and the external filter pipes are provided with filter holes, and the internal filter pipes and the external filter pipes are arranged at intervals to form an annular cavity. The other end of the filter core body is provided with a relief valve relative to the end provided with the end cover. The automobile fuel filter core has the advantages of being high in filtering precision and good in passage capacity, being cleanable and reusable, being long in service life, simple in structure and convenient in manufacture and the like.

Description

technical field [0001] The invention relates to a filter, in particular to a filter element of an automobile fuel filter. Background technique [0002] Automobile fuel filters are filter-type filters. [0003] In the early days, the filter elements of gasoline filters were metal sheet slit type, metal filter mesh type, nylon cloth type, porous ceramic type, etc. The metal sheet slit type, metal filter screen type, and nylon cloth type are characterized by reliable operation and long service life, but the filtering effect is poor, the structure is complicated, and it is inconvenient to manufacture and clean, so they have gradually been eliminated; the porous ceramic type is characterized by simple structure , high filtration efficiency, but maintenance and cleaning are more difficult, not easy to clean, and the service life is not long, so it is rarely used at present. [0004] The filter elements of diesel filters are made of cotton yarn, nylon cloth, felt, metal wire and ...

AI Technical Summary

Problems solved by technology

Among them, the filter paper cylinder needs to be processed with phenolic resin to be made into a folding cylinder, the upper and lower covers need to be stamped, and the central mesh cylinder is deep-processed. The process is cumbersome, the structure is more complicated, there is often degumming, and the service life is short.

In response to the above-mentioned degumming phenomenon, some manufacturers make the upper and lower covers with epoxy resin materials, pour the resin into the mold, and let it naturally solidify and integrate with the filter paper cylinder and the central mesh cylinder. Although the degumming phenomenon is overcome, other disadvantages still exist

It is difficult to clean the paper filter element after it is clogged, and the filter element must be replaced

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