Modified structure for inner wall of cylinder body

A cylinder block and modification technology, applied in the direction of cylinders, cylinder heads, engine components, etc., can solve the problems of thermal performance mismatch, increased cylinder block weight, etc., to improve wear resistance, increase bonding force, and maintain good contact. Effect

Pending Publication Date: 2019-06-14
夏军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cast iron liners generally add weight to the block and can cause a thermal mismatch between aluminum blocks and cast iron liners

Method used

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  • Modified structure for inner wall of cylinder body

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Embodiment Construction

[0018] Further detailed explanation through specific implementation mode below:

[0019] In at least one embodiment, the protective layer in the present invention is a coating, and the block is an engine block or cylinder block. The engine block may include one or more cylinder bores, which may be configured to receive pistons of an internal combustion engine. The engine block body may be formed from any suitable light metal or light metal alloy material, such as aluminum, magnesium, titanium or alloys thereof. In another embodiment, the engine block may be formed from a cast iron material.

[0020] In at least one embodiment, the engine block is a linerless engine block. In these embodiments, the cylinder bore may have a coating on it.

[0021] In at least one embodiment, an engine block may include cylinder liners inserted or cast into cylinder bores. A cylinder liner can be a hollow cylinder or tube with an outer surface, an inner surface and a wall thickness. The inne...

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Abstract

The invention relates to the technical field of cylinder strengthening, and particularly discloses a modified structure for an inner wall of a cylinder body. The modified structure comprises a protective layer arranged on the inner wall of the cylinder body. According to the modified structure, the wear resistance, the strength and the lubricity of the inner wall of the whole cylinder body can beimproved through the arrangement of the protective layer, so that the engineering performance of the inner wall of the cylinder body is improved, and the service life of the cylinder body is prolonged.

Description

technical field [0001] The invention relates to the field of wear-resistant coating processing. Background technique [0002] An engine block (cylinder block) may include one or more cylinder bores that accommodate pistons of an internal combustion engine. The engine block may, for example, be cast from cast iron or aluminium. Aluminum is lighter than cast iron and can be selected to reduce vehicle weight and improve fuel economy. Aluminum engine blocks may include cylinder liners, such as cast iron liners. Aluminum engine blocks can include coatings on the cylinder bore surface if there is no cylinder liner. Cast iron liners generally add weight to the block and can cause a thermal mismatch between aluminum blocks and cast iron liners. Linerless cylinder blocks may receive a coating (eg, a plasma-coated cylinder bore process) to reduce wear and / or friction. Contents of the invention [0003] The purpose of the present invention is to provide a modified structure for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F1/18
Inventor 夏军
Owner 夏军
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