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High-wearing engine cylinder sleeve imitating desert lizard cuticle

An engine cylinder, high wear resistance technology, used in engine components, machines/engines, cylinders, etc., can solve problems such as poor wear resistance, reduced engine cylinder liner service life, engine cylinder liner wear, etc. The effect of abrasiveness, excellent anti-abrasive wear and anti-erosion wear properties

Inactive Publication Date: 2015-10-07
泰州扬子江车辆部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Erosion wear is one of the common forms of wear, especially the erosion wear of gas-solid two-phase flow, because the abrasive directly acts on the worn surface without any lubricating medium, and the wear phenomenon is very serious; when the piston and the engine cylinder liner mechanically During relative movement, the outer surface of the piston will wear with the inner surface of the cylinder liner; however, the inner wall of the existing engine cylinder liner is not strong in wear resistance, so the inner wall of the engine cylinder liner is worn due to the continuous friction between the piston and the cylinder liner Serious, greatly reducing the service life of the engine cylinder liner;
[0003] In order to improve the service life of the engine cylinder liner, it is necessary to improve the internal structure of the engine cylinder liner. The current traditional method is to reduce the surface roughness of the contact moving parts as an important means to improve its wear resistance. Specifically, the inner wall of the engine cylinder liner, Designed to be processed into a smooth surface, which not only requires a lot of processing costs, but sometimes does not achieve the desired effect

Method used

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  • High-wearing engine cylinder sleeve imitating desert lizard cuticle
  • High-wearing engine cylinder sleeve imitating desert lizard cuticle
  • High-wearing engine cylinder sleeve imitating desert lizard cuticle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] see Figure 1-Figure 5 Shown, a kind of highly wear-resistant engine cylinder liner imitating desert lizard epidermis, comprises engine liner body 1; The outer wall of described engine liner body is evenly distributed with some concave cut grooves 2, and the inner wall surface of engine liner body is attached with The wear-resistant layer imitating the desert lizard; the surface layer formed by the wear-resistant layer and the inner wall surface 3 of the engine cylinder liner body is concave-convex; Hexagonal projections (adjacent second hexagonal projections and the inner wall of the engine cylinder liner body surround a groove), and the second hexagonal protrusions form a hexagonal surface layer 6 with the inner wall of the engine cylinder liner body; The hexagonal surface layer is evenly distributed with some second spherical protrusions 7 at intervals; the second spherical protrusions are spherical protrusions of micronano scale (the shape and size of the first and ...

Embodiment 2

[0022] On the basis of Embodiment 1, the wear-resistant layer includes a plurality of first hexagonal protrusions 4 uniformly distributed on the inner wall surface of the engine cylinder liner body. The raised hexagonal structure on the inner wall of the engine cylinder liner body increases the connectivity of lubricating oil, promotes the lubrication of the piston and the cylinder liner, and reduces wear; specifically, the engine cylinder liner body other than the first hexagonal protrusion The various parts of the inner wall are connected, and the connection of lubricating oil can be realized on the macroscopic surface topography scale of the inner wall of the engine cylinder liner body, thereby ensuring the lubrication effect and effectively reducing the wear on the surface of the cylinder liner.

Embodiment 3

[0024] On the basis of Embodiment 1, the wear-resistant layer includes a plurality of first spherical protrusions 5 uniformly distributed on the inner wall surface of the engine cylinder liner body. The spherical protrusion structure on the inner wall of the engine cylinder liner body increases the connectivity of lubricating oil, promotes the lubrication of the piston and the cylinder liner, and reduces wear; specifically, all parts of the inner wall surface of the engine cylinder liner body other than the first spherical protrusion Connected, the macroscopic surface topography of the inner wall of the engine cylinder liner body can realize the communication of lubricating oil, thereby ensuring the lubrication effect and effectively reducing the wear of the cylinder liner surface; further, the friction between the piston and the inner wall surface of the engine cylinder liner body At the same time, because the top of the spherical protrusion is arc-shaped, it not only has stro...

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Abstract

The invention relates to the technical field of engine cylinder sleeve devices, and especially relates to a high-wearing engine cylinder sleeve imitating desert lizard cuticle. The cylinder sleeve comprises an engine cylinder sleeve body. The outer wall of the engine cylinder sleeve body is uniformly distributed with a plurality of concave cutting grooves. The inner wall surface of the engine cylinder sleeve body is adhered to a wearing layer. The surface layer formed by the wearing layer and the inner wall surface of the engine cylinder sleeve body is in a concave-convex shape. The high-wearing engine cylinder sleeve imitating desert lizard cuticle has high wear resistance.

Description

technical field [0001] The invention relates to the technical field of engine cylinder liners, in particular to a highly wear-resistant engine cylinder liner imitating the skin of a desert lizard. Background technique [0002] Erosion wear is one of the common forms of wear, especially the erosion wear of gas-solid two-phase flow, because the abrasive directly acts on the worn surface without any lubricating medium, and the wear phenomenon is very serious; when the piston and the engine cylinder liner mechanically During relative movement, the outer surface of the piston will wear with the inner surface of the cylinder liner; however, the inner wall of the existing engine cylinder liner is not strong in wear resistance, so the inner wall of the engine cylinder liner is worn due to the continuous friction between the piston and the cylinder liner Serious, greatly reducing the service life of the engine cylinder liner; [0003] In order to improve the service life of the engi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F1/00
CPCF02F1/004F02F1/20B32B2307/554B32B2597/00B32B3/30B32B1/08
Inventor 唐维刚李德刚唐晓震陈国荣刘效
Owner 泰州扬子江车辆部件有限公司
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