Internal combustion engine cylinder liner

A technology for an internal combustion engine and a cylinder liner, applied to the field of the cylinder liner of an internal combustion engine, can solve problems such as major accidents, broken connecting rod screws, and scrapping of the whole machine, and achieve the effects of improving work efficiency, prolonging service life, and reducing maintenance times.

Inactive Publication Date: 2006-10-25
李明领
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the internal combustion engine is working and high-pressure gas is generated in the cylinder, due to the pressure, the gasket between the cylinder liner and the cylinder head is often displaced by the impact of the air pressure. Once broken, the cooling water in the body enters the cylinder and the oil tank, which will cause the bearing bush If it is damaged, if the shutdown is not found in time, the connecting rod screw will be broken, the whole machine will be scrapped, and even a major accident will be caused. Especially for the internal combustion engine on the transport vehicle, due to the frequent overload operation, the chances of the gasket being broken are more , more dangerous

Method used

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  • Internal combustion engine cylinder liner
  • Internal combustion engine cylinder liner
  • Internal combustion engine cylinder liner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment I

[0021] Embodiment 1, as figure 1 Shown: the top of the existing cylindrical cylinder liner 1 is provided with an annular gasket groove 2. The height of the boss 3 on the top of the cylinder liner 1 can be adjusted accordingly as required. When in use, the cylinder liner 1 is connected to the cylinder head through a connecting piece, and there is a gasket made of metal material coated asbestos board or other non-metallic materials in between, and the gasket sinks into the gasket groove 2 under the pressure of the connecting piece middle. In this way, it can be ensured that the gasket is not in place when the internal combustion engine is working, thereby ensuring the reliability of the seal.

Embodiment II

[0022] Example II, such as figure 2 As shown: a gasket groove 2 is provided on the top of the cylinder liner 1, and the gasket groove 2 is an annular slope-shaped groove with a shallow outer mouth and a deep inner mouth (its slope can be determined according to the cylinder wall thickness). In this way, when working, the gasket can be positioned, and the sealing performance is further improved.

[0023] Embodiment III, such as image 3 As shown: there is a gasket groove 2 on the top of the cylinder liner 1. The gasket groove 2 is an annular slope-shaped groove with a shallow outer opening and a deep inner opening. The side is inclined to form a bell mouth with an upward opening. In this way, when working, because the outside is shallow and the inside is deep, as the pressure in the cylinder continues to rise, the pressure applied to the gasket also increases, and the density of the gasket is smaller on the inside and larger on the outside, and the sealing performance become...

Embodiment V

[0025] Example V, such as Figure 5 As shown: there is a gasket groove 2 on the top of the cylinder liner 1. The gasket groove 2 is an annular slope-shaped groove with a shallow outer opening and a deep inner opening. The side is inclined to be a trumpet mouth with an upward opening, and its inner opening communicates with the inner cavity of the cylinder liner 1, that is, it is an opening inclined toward the inner cavity of the cylinder liner 1 .

[0026] Embodiment VI, such as Figure 6 As shown: there are three tooth-shaped gasket grooves 2 on the top of the cylinder liner 1, that is, on the axial section of the cylinder liner 1, the gasket grooves 2 are in a continuous "W" shape, and the tooth-shaped gaskets The groove 2 is from the outside of the cylinder liner 1 to the inside, and its groove depth is deepened step by step.

[0027] Embodiment VII, such as Figure 7 As shown: the top of the cylinder liner 1 is an inwardly inclined 10° slope, on which five toothed gaske...

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PUM

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Abstract

The invention provides an internal-combustion engine cylinder sleeve, characterized in that: it makes a spacer groove on the top of the cylinder sleeve, where the spacer groove can be a sloping groove with a shallow outer mouth and a deep inner mouth, and the outer and inner mouths can be a bell mouth inclined to the two sides in the shape; or the spacer groove can be a spacer groove made with several teeth on the top of the cylinder sleeve. Because of the addition of the spacer groove, as matching with a cylinder cover, it immerses the spacer in the spacer groove by the pressure of the connection piece, thus able to assure the spacer is not displaced as the internal-combustion engine works, especially as the spacer groove is a sloping groove, the sealing property turns better, thus assuring the sealing reliability and prolonging the service life, reducing maintaining number of times and raising working efficiency. And the invention is applied to various cylinder sleeves.

Description

Technical field [0001] The invention relates to a component of an internal combustion engine, in particular to a cylinder liner of the internal combustion engine. Background technique [0002] Existing cylinder liner of internal combustion engine, its top is plane, or is provided with small boss on top inner wall, when being connected with cylinder head, spacer is placed between each other, is fixed by assembling bolt, to guarantee sealing. When the internal combustion engine is working and high-pressure gas is generated in the cylinder, due to the pressure, the gasket between the cylinder liner and the cylinder head is often displaced by the impact of the air pressure. Once broken, the cooling water in the body enters the cylinder and the oil tank, which will cause the bearing bush If it is damaged, if the shutdown is not found in time, the connecting rod screw will be broken, the whole machine will be scrapped, and even a major accident will be caused. Especially for the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F1/00
Inventor 李明领
Owner 李明领
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