Wear-resistant lubricating type engine piston

Abstract

The utility model discloses a wear-resistant lubrication type engine piston which comprises a piston body, a sealing ring groove, a shaft end connecting hole, a side strip groove, a middle ring groove and a loose micropore ring piece, the middle ring groove is formed in the middle of the piston body, and the loose micropore ring piece is arranged in the middle ring groove. A side strip groove is longitudinally formed in the annular face of one side of the middle of the piston body. The piston has the advantages that the loose micropore ring piece is arranged in the middle ring groove, the loose micropore structure can be used for forming retention and adsorption on lubricating oil, the lubricating oil is guided to the inner side in the deep direction in combination with the side strip grooves, the overall lubricating operation speed of the piston is increased, and the abrasion resistance of the piston is improved.

Description

Technical Field

[0001] This utility model relates to engine pistons, specifically a wear-resistant and lubricated engine piston. Background Technology

[0002] A piston engine is a power unit that relies on the reciprocating motion of a piston in a cylinder to complete a thermodynamic cycle of the gaseous working fluid and convert some of the chemical energy of the fuel into mechanical work. However, existing engine pistons, being fully lubricated, operate at slow speeds and have long friction strokes, which is detrimental to improving piston wear resistance. Therefore, a wear-resistant lubricated engine piston is proposed to address these issues. Utility Model Content

[0003] The purpose of this invention is to provide a wear-resistant and lubricated engine piston in order to solve the above-mentioned problems.

[0004] This utility model achieves the above-mentioned objective through the following technical solution: a wear-resistant and lubricated engine piston, including a piston body, a central annular groove is provided in the middle of the piston body, and a loose microporous ring is provided inside the central annular groove; a side groove is longitudinally provided on the annular surface on one side of the middle of the piston body.

[0005] Preferably, the width of the side groove is 0.5mm-0.7mm, and the annular surface of the piston body around the lateral opening of the side groove is in contact with the outer cylinder wall.

[0006] Preferably, one end of the side groove is connected to the edge of the port on the top of the piston body.

[0007] Preferably, two sealing ring grooves are alternately formed on the annular surface on the other side of the middle part of the piston body.

[0008] Preferably, two shaft end connection holes are symmetrically formed on the annular surface at the top of the piston body.

[0009] Compared with the prior art, the advantages of this utility model are: by setting a loose microporous ring inside the central annular groove, the loose microporous structure can be used to retain and adsorb the lubricating oil, and combined with the side groove, the lubricating oil is guided to the inner depth, which accelerates the overall lubrication operation speed of the piston and improves the wear resistance of the piston. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is another schematic diagram of the overall structure of this utility model;

[0013] Figure 3 This is a side view of the overall structure of this utility model.

[0014] In the figure: 1. Piston body; 110. Sealing ring groove; 120. Shaft end connecting hole; 130. Side strip groove; 140. Central ring groove; 141. Loose microporous ring. Detailed Implementation

[0015] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] Please see Figure 1-3 As shown, a wear-resistant and lubricated engine piston includes a piston body 1. A central annular groove 140 is formed in the middle of the piston body 1, and a loosely porous microporous ring 141 is provided inside the central annular groove 140. A side groove 130 is formed longitudinally on the annular surface on one side of the middle of the piston body 1. The width of the side groove 130 is 0.5mm-0.7mm, and the annular surface of the piston body 1 around the side groove opening of the side groove 130 contacts the outer cylinder wall.

[0019] Furthermore, one end of the side groove 130 is connected to the port edge at the top of the piston body 1.

[0020] Furthermore, two sealing ring grooves 110 are alternately formed on the annular surface on the other side of the middle part of the piston body 1.

[0021] Furthermore, two shaft end connection holes 120 are symmetrically opened on the annular surface at the top of the piston body 1.

[0022] Compared with the existing technology, the difference is that by setting a loose microporous ring 141 inside the central annular groove 140, the loose microporous structure can be used to retain and adsorb the lubricating oil, and combined with the side groove 130, the lubricating oil is guided to the inner depth, which accelerates the overall lubrication operation speed of the piston and improves the wear resistance of the piston.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wear-resistant and lubricated engine piston, characterized in that: The piston body (1) is characterized in that: a central annular groove (140) is provided in the middle of the piston body (1), and a loose microporous ring (141) is provided inside the central annular groove (140), and a side strip groove (130) is longitudinally provided on the annular surface on one side of the middle of the piston body (1).

2. The wear-resistant and lubricated engine piston according to claim 1, characterized in that: The width of the side groove (130) is 0.5mm-0.7mm, and the annular surface of the piston body (1) around the side groove opening of the side groove (130) is in contact with the outer cylinder wall.

3. The wear-resistant and lubricated engine piston according to claim 1, characterized in that: One end of the side groove (130) is connected to the edge of the port at the top of the piston body (1).

4. A wear-resistant and lubricated engine piston according to claim 1, characterized in that: Two sealing ring grooves (110) are alternately formed on the annular surface of the other side of the middle part of the piston body (1).

5. A wear-resistant and lubricated engine piston according to claim 1, characterized in that: Two shaft end connection holes (120) are symmetrically opened on the annular surface at the top of the piston body (1).

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