Engine having built-in sodium-filled hot superconducting element cylinder head and engine structure thereof

By incorporating a sodium-filled superconducting element into the engine cylinder head and utilizing the phase change heat transfer mechanism of the heat transfer medium, the problem of heat conduction in the local high heat load area of ​​the cylinder head is solved, the peak temperature and knock risk are reduced, and the engine's operational reliability is improved.

CN122407394APending Publication Date: 2026-07-17FAW QI NEW POWER (CHANGCHUN) TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FAW QI NEW POWER (CHANGCHUN) TECHNOLOGY CO LTD
Filing Date
2026-04-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing engines, the heat in the local high-heat-load areas of the cylinder head cannot be transferred to the coolant in time under high-power operation, resulting in a rise in peak temperature, thermal fatigue cracks, and engine knocking.

Method used

A closed sodium-filled superconducting element is embedded inside the cylinder head. The heat transfer medium absorbs heat at the heat absorption end and vaporizes, and condenses at the heat dissipation end. Heat is transferred to the coolant through phase change, avoiding the increase of flow resistance in the narrow branch water channel.

Benefits of technology

It effectively reduces the peak temperature in areas with high local heat load, reduces the temperature distribution difference, lowers the probability of engine knocking, and avoids sealing failure problems caused by complex water channel design.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses an engine with a built-in sodium-filled heat superconducting element cylinder cover and a structure thereof, and relates to the technical field of vehicle engines.The engine cylinder cover is characterized in that the bottom surface of the engine cylinder cover is shaped into a cylinder cover combustion chamber, the inside of the engine cylinder cover is provided with a cylinder cover water jacket, and at least one closed sodium-filled heat superconducting element is embedded in the solid inside between the cylinder cover combustion chamber and the cylinder cover water jacket of the engine cylinder cover; the inside of the sodium-filled heat superconducting element is provided with a vacuumized sodium-filled cavity, the sodium-filled cavity is filled with a heat transfer medium, one end of the sodium-filled heat superconducting element close to the cylinder cover combustion chamber is provided with a heat absorbing end, and the other end of the sodium-filled heat superconducting element close to the cylinder cover water jacket is provided with a heat dissipating end.The application reduces the physical peak temperature of a local area, reduces structural thermal stress, and eliminates a local high-temperature surface that can cause engine knock.
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