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Non-leakaging notch full-sealing piston ring

A fully sealed and leak-free technology, applied to piston rings, engine components, machines/engines, etc., to achieve good sealing performance, reduce replacement frequency, and reduce exhaust pollution

Inactive Publication Date: 2007-01-03
舒忠军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, when the piston ring is heated and expanded, it will not cause jamming or breaking accidents

Method used

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  • Non-leakaging notch full-sealing piston ring
  • Non-leakaging notch full-sealing piston ring
  • Non-leakaging notch full-sealing piston ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1 Common type cutout no leakage fully sealed piston damage

[0019] As shown in Figures 1 to 5, there is a cutout on the sealing ring, and the cross section of the ring is rectangular. The difference is that each cut end has an outer convex kiss and an inner convex kiss with a rectangular cross section and different protruding lengths. The inner surfaces of the inner and outer convex kisses on each incision end are engaged with the corresponding inner surfaces of the inner and outer convex kisses on the opposite incision end. The so-called engagement means that the inner surfaces are closely matched with each other without gaps, and the end surfaces of all the convex kisses are opposite to each other. There is an open gap between the notched end faces. In this embodiment, the axial width of the outer convex kiss 1 on the cutout at one end is smaller than the axial width of the inner convex kiss, and the axial width of the corresponding outer convex kiss 1' on th...

Embodiment 2

[0020] Embodiment 2 Simplified cut-out leak-free fully-sealed piston ring

[0021] This example is basically the same as the first example, except that the radial width of the outer convex kiss 3 is greater than the radial width of the inner convex kiss 4 .

[0022] Although the present embodiment has an upper and lower through slit on the inner side, the slit is always located in the piston ring groove during use. Regardless of whether the piston moves up or down, the lower or upper wall of the ring groove will seal the cutout, so no gas or oil leakage will occur, and the entire piston ring still plays a fully sealed role.

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PUM

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Abstract

The present invention relates to a full-sealed piston ring with no-leakage notches. Said full-sealed piston ring can be used in the piston of internal combustion engine. Said piston ring is characterized by that on the ring several notches are set, the ring cross-section is rectangular, every notch end is equipped with outwards flange and inwards flange whose cross-sections are rectangular and projected lengths are different, the inside faces of inwards flange and outwards flange positioned on every notch end are engaged with correspondent inside faces of inwards flange and outwards flange positioned on opposite notch end, the described engagement is mutually tight fit, gapless between inside faces, between the end faces of all the flanges and their opposite notch end faces the opening gap is set. Said piston ring doen not leak oil or leak air, can save fuel oil and can raise power of internal combustion engine.

Description

technical field [0001] The invention relates to an accessory used on a piston of an internal combustion engine, and the international classification number is FO2F5 / 00. Background technique [0002] The piston ring is a part embedded in the ring groove of the internal combustion engine, which slides and cooperates with the cylinder to play a sealing role. The cross-section of the existing piston ring is rectangular, and there are cutouts. The end faces of the two cutouts are planes or slopes parallel to each other, and there is a gap between the end faces of the cutouts. The shape of the cut includes straight cut, oblique cut, straight cut up and down, etc. These types have gaps that go through the ring body up and down, so the shape of the cut itself leads to poor sealing, and it is easy to leak air and oil. As the service time prolongs, the gap between the cutouts becomes larger and larger, and the leakage also increases, which reduces the power of the entire internal com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F5/00
Inventor 舒忠军
Owner 舒忠军
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