Structure of wall of cylinder hole in engine cylinder block and process method

Abstract

The invention relates to a structure of the wall of a cylinder hole in an engine cylinder block and a process method. Alcohol fuel has strong corrosion to the wall of the cylinder hole in the engine cylinder block, resulting in corrosion to the wall of the cylinder hole in the engine cylinder block, which greatly shortens the service life of the cylinder block. A matched gap between the wall and apiston is larger, and the air tightness is reduced, which causes the reduction of the output power of an engine. The structure comprises the engine cylinder block (1); the engine cylinder block is provided with the cylinder hole (2); the wall of the cylinder hole is subjected to vacuum plating, spraying and coating with an anticorrosive material to form an anticorrosion clad layer or coating (3);an engine cylinder adopts a single-cylinder form or a multi-cylinder form, the number of cylinders is not limited, and the engine cylinder can be classified into a cast iron cylinder block, an aluminum cylinder block, and other alloy material cylinder blocks. The structure is applied to engine cylinders.

Description

Technical field: [0001] The invention relates to a cylinder hole wall structure and a process method of an engine cylinder block. Background technique: [0002] At present, gasoline or diesel resources are increasingly scarce, and the exhaust emissions of automobiles fueled by gasoline or diesel are increasingly polluting the environment. Energy conservation and environmental protection have become an inevitable trend in the development of the automobile industry. Realizing the energy saving and emission reduction of automobiles is a major challenge faced by the entire automobile industry. Therefore, the design of engines has begun to develop towards the use of alternative fuels or gasoline mixed with other fuels to reduce emissions. Pure alcohol fuels or An engine in which gasoline is mixed with alcohol fuel. Alcohol fuel has a strong corrosion on the bore wall of the engine cylinder block, and the anticorrosion of the bore wall of the engine cylinder block has become one ...

AI Technical Summary

Problems solved by technology

[0004] (1) Alcohol fuel is highly corrosive, causing corrosion to the cylinder bore wall of the engine cylinder block, which greatly shortens the service life of the cylinder block

[0005] (2) After the cylinder bore wall of the cylinder block is corroded, the gap between the piston and the piston becomes larger and the airtightness decreases, resulting in a decrease in engine output power;

[0006] (3) After the cylinder bore wall of the cylinder block is corroded, the gap between the piston and the piston becomes larger and the airtightness decreases, which increases the fuel consumption rate;

[0007] (4) After the cylinder bore wall of the cylinder block is corroded, the gap between the piston and the piston becomes larger and the airtightness decreases, which increases the exhaust emission index;

[0008] (5) After the cylinder hole wall of the cylinder block is corroded, the gap between the piston and the piston becomes larger, so that the fuel enters the crankcase along the gap, causing the mixture of fuel and oil to reduce the quality of the oil, the lubricating effect, and shorten the service life of the oil. Changing the oil can also lead to insufficient lubrication which shortens the life of the engine

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