An automobile coolant pot

By installing a filter component at the pressure relief channel, the problem of external impurities and dust entering the coolant reservoir is solved, achieving pressure balance and sealing within the coolant reservoir, and ensuring the stable operation of the cooling system.

CN224469211UActive Publication Date: 2026-07-07NINGBO JIAKAI AUTO SPARE PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO JIAKAI AUTO SPARE PARTS CO LTD
Filing Date
2025-08-13
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The pressure relief channel of a traditional car coolant reservoir is left open for a long time, allowing external impurities and dust to enter, damaging the coolant circulation pump and affecting the normal operation of the cooling system.

Method used

A filter assembly, including a mounting base, a support frame, and a filter cotton sleeve, is installed at the pressure relief channel. Combined with internal and external threads and a locking structure, it can be detached and installed to filter external impurities and dust, and maintain air pressure balance through vent holes.

Benefits of technology

It effectively filters external impurities and dust, reducing the probability of them entering the coolant reservoir, ensuring pressure balance inside the coolant tank, preventing coolant leakage, and improving the reliability and stability of the cooling system.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224469211U_ABST
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Abstract

This application relates to an automotive coolant reservoir, belonging to the field of automotive component technology. It includes a reservoir body with a reservoir chamber. The reservoir body also has an outlet connector and a return connector communicating with the reservoir chamber. The top of the reservoir body has a filling connector and a sealing cap that seals the filling connector. A pressure relief channel is provided on the reservoir body. The upper end of the pressure relief channel forms a pressure relief port on the inner wall of the filling connector. The lower end of the pressure relief channel forms an air inlet at the bottom of the reservoir body. A filter assembly is provided at the pressure relief channel. The filter assembly includes a mounting base, a support frame connected to the top of the mounting base, a filter cotton sleeve disposed outside the support frame and conforming to the inner wall of the pressure relief channel, and a handle disposed at the bottom of the mounting base. The mounting base has vent holes penetrating its upper and lower surfaces. This application reduces the probability of external impurities and dust entering the reservoir chamber.
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