Ceramic sheathed internal combustion engine piston and manufacturing method thereof

Abstract

The invention discloses a ceramic sheathed internal combustion engine piston and a manufacturing method thereof. The piston comprises a metal body piston and a ceramic top plate sheathed on the top of the metal body piston, wherein a plurality of cylindrical ceramic nails are uniformly distributed on the inner surface of the ceramic top plate; and the metal body piston and the ceramic top plate are connected into a whole through the cylindrical ceramic nails. According to the internal combustion engine piston, high-temperature heat transmitted from a combustion chamber of an internal combustion engine to the metal body piston is effectively reduced, so that the metal body piston is effectively prevented from being eroded; and the temperature in the combustion chamber of the internal combustion engine is increased conveniently, so that fuels are combusted more quickly and more completely, and the heat engine efficiency of the internal combustion engine is improved. The manufacturing method for the internal combustion engine piston sheathed with a ceramic coverage layer is simple, the requirement on processing precision is low, and a modern manufacturing technology can be realized.

Description

technical field [0001] The invention relates to a piston of an internal combustion engine, in particular to a piston of an internal combustion engine with a ceramic covering layer on the top of the piston and a manufacturing method thereof. Background technique [0002] At present, the internal combustion engine pistons are all made of metal materials. In order to prevent the piston temperature from being too high when the internal combustion engine is working, which will affect the use of the piston, a strong liquid cooling system is installed in the internal combustion engine to ensure that the internal combustion engine works normally at a temperature that is not too high. . Due to the heat absorption and heat dissipation of the liquid cooling system, part of the heat energy will be consumed, which will reduce the temperature of the combustion chamber of the internal combustion engine. Harmful gases from incomplete combustion will be produced, polluting the environment. ...

AI Technical Summary

Problems solved by technology

Due to the heat absorption and heat dissipation of the liquid cooling system, part of the heat energy will be consumed, which will reduce the temperature of the combustion chamber of the internal combustion engine. 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. Harmful gases from incomplete combustion will be produced, polluting the environment

[0003] In view of the above situation, there are some materials that use the high temperature resistance of ceramic materials to manufacture water-free ceramic internal combustion engines, but due to the brittleness of ceramic materials, it does not have Basic assembly and use strength, so there are difficulties in the production and use of ceramic internal combustion engines, and some people design the main high-temperature components of internal combustion engines to be ceramicized to increase the fuel combustion temperature

The internal combustion engine piston is one of the main components that urgently need to be ceramicized. It is a good way to armor the heat-insulating ceramic panel on the piston top. The piston top bears uniform positive pressure during work. The ceramic material has high compressive strength and low thermal conductivity. performance, high temperature resistance, etc. can meet the requirements of internal combustion engine piston ceramization, but it is difficult to armor, it is fixed by screws and metal rings, the processing is difficult, and the reliability and stability are difficult to guarantee

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