Composite prestressing force ceramic lining cylinder sleeve and manufacturing method thereof

Abstract

The invention discloses a composite prestressing force ceramic lining cylinder sleeve and a manufacturing method thereof; the cylinder sleeve comprises a metal outer sleeve and a ceramic lining, wherein the ceramic lining is sheathed in the metal outer sleeve by a heating assembly method, after cooling, the metal outer sleeve applies pressure stress to the ceramic lining and increases the mechanical strength of the ceramic so that the ceramic can be used for manufacturing the cylinder sleeve; wherein the inner diameter of the metal outer sleeve is identical to the outer diameter of the ceramic lining; the mismatching tolerance of the inner diameter of the metal sleeve is negative error, and the matching tolerance of the outer diameter of the ceramic lining is positive error. When the composite prestressing force ceramic lining cylinder sleeve provided by the invention is used, the exterior of the cylinder sleeve has no need to be cooled by a cooling water system, therefore, the radiation loss of the cylinder sleeve is reduced, the temperature of an air cylinder combustor is increased so that fuels are more rapidly and completely burned, and the heat engine efficiency of an internal combustion engine is improved; the manufacturing method of the composite prestressing force ceramic lining cylinder sleeve is simple, has higher requirements on the machining precision and can be realized by a modern numerical control machining technology.

Description

technical field [0001] The invention relates to a cylinder sleeve of an internal combustion engine, in particular to a composite prestressed ceramic liner cylinder sleeve and a manufacturing method thereof. Background technique [0002] At present, the cylinder liners of internal combustion engines are all made of metal materials. In order to prevent the temperature of the cylinder liners from being too high when the internal combustion engine is working, which will affect the service strength of the cylinder liners, a water cooling system is installed outside the cylinder liners to ensure that the internal combustion engine does not operate at a high temperature. work normally. Due to the heat absorption and heat dissipation of the water cooling system, part of the heat energy will be consumed, which will reduce the temperature of the combustion chamber in the cylinder. In some cases, the fuel in the combustion chamber will not burn quickly and completely, reducing the heat...

AI Technical Summary

Problems solved by technology

Due to the heat absorption and heat dissipation of the water cooling system, part of the heat energy will be consumed, which will reduce the temperature of the combustion chamber in the cylinder. In some cases, the fuel in the combustion chamber will not burn quickly and completely, reducing the heat engine efficiency of the internal combustion engine. It will also produce harmful gases from incomplete combustion, polluting the environment

[0003] In view of the above situation, some data propose to use the high temperature resistance of ceramic materials to manufacture water-free ceramic internal combustion engine cylinder liners. However, due to the brittleness of ceramic materials, they do not have basic assembly and service strength. and difficulties in using

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