Cast-in cylinder sleeve assembly, engine, manufacturing method of engine and vehicle

CN120720137APending Publication Date: 2025-09-30CHINA FAW CO LTD
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Patent Information

Application Number
CN202510854794.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-24
Publication Date
2025-09-30

AI Technical Summary

Technical Problem

When manufacturing the engine cylinder block, the positional accuracy between the cylinder liners is difficult to ensure, resulting in inconsistent thickness, which can easily lead to coolant leakage, increased friction and failure risks, and the cylinder liners can be easily damaged when machining the cooling holes.

Method used

A cast cylinder liner assembly is adopted, and a first protrusion and a first groove are provided on the outer side walls of adjacent cast cylinder liners for positioning and matching to ensure the consistency of the thickness of the cast cylinder body, and a sand core positioning part is provided on the inner side wall of the cast cylinder liner to improve the positioning accuracy.

Benefits of technology

It effectively reduces the risk of engine failure and abnormal noise, reduces fuel consumption, and improves the structural stability and production efficiency of the cast cylinder body.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a cast-in cylinder sleeve assembly, an engine, a manufacturing method of the engine and a vehicle. Belongs to the technical field of vehicles, the cast-in cylinder sleeve assembly comprises a plurality of cast-in cylinder sleeves arranged in parallel, the outer side wall of each cast-in cylinder sleeve is provided with a first protruding part and / or a first groove part, in every two adjacent cast-in cylinder sleeves, the first protruding part of one cast-in cylinder sleeve is matched with the first groove part of the other cast-in cylinder sleeve in a positioning mode, and the first protruding part of the other cast-in cylinder sleeve is matched with the first groove part of the other cast-in cylinder sleeve in a positioning mode. According to the casting cylinder body, the position precision of the two adjacent casting cylinder sleeves can be improved, the consistency of the thickness of the part, located between any two casting cylinder sleeves, of the casting cylinder body can be guaranteed, the risks of faults and abnormal sounds of an engine can be effectively reduced, and oil consumption of the engine can be reduced.
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Citation Information

Patent Citations

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    CN108425761A

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    CN114850451A

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    CN214499245U

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