Self-cleaning anti-blocking machine oil filter

By designing magnetic filter components and overflow components, the self-cleaning anti-clogging oil filter solves the problem of bypass valve blockage caused by impurities adhering to the filter cartridge after blockage, thus achieving self-cleaning and normal flow of the oil filter.

CN224300965UActive Publication Date: 2026-05-29RUIAN QIHUA AUTOMOTIVE PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RUIAN QIHUA AUTOMOTIVE PARTS CO LTD
Filing Date
2025-05-28
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

When the filter cartridge of an existing oil filter becomes clogged, impurities tend to adhere to the bypass valve as the oil passes through it, causing the bypass valve to become clogged and affecting oil flow.

Method used

A self-cleaning, anti-clogging oil filter was designed, employing a magnetic filter assembly and an overflow assembly. The magnetic filter assembly uses a magnetic rod to attract iron filings, while the overflow assembly uses the rotational friction of the valve core to prevent impurities from adhering. The filter includes a combination structure of a guide sleeve, filter screen, magnetic rod, valve core, and valve stem, which prevents impurities from accumulating on the valve core and mounting bracket.

Benefits of technology

It effectively prevents impurities from accumulating on the valve core and mounting bracket, improves the service life of the filter cartridge and the flow of engine oil, reduces the probability of bypass valve blockage, and ensures normal oil flow.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224300965U_ABST
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Abstract

The utility model discloses a self -cleaning formula prevents blocking machine oil filter, belongs to machine oil filter technical field, a self -cleaning formula prevents blocking machine oil filter, including the casing, the casing top fixedly connected with the sealing ring, the sealing ring outer end fixed mounting has the mounting panel, and the mounting panel outer end is equipped with a plurality of oil inlets, and the mounting panel outer end is equipped with the oil outlet, and the mounting panel bottom is provided with the magnetic filter subassembly, and the magnetic filter subassembly is located the inside of casing, and the valve core is installed the valve cover in the upper portion rotation, when filter drum is blocked, the machine oil will open the valve core upward and top, valve cover will compress the extension spring at this moment, and simultaneously because the sliding block in through -hole no.
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Citation Information

Patent Citations

  • Efficient-filtering anti-blocking oil filter element

    CN117605560A