CN216642297U

CN216642297U - Novel piston ring

Info

Publication number: CN216642297U
Application number: CN202122887468.5U
Authority: CN
Inventors: 仲维文
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-05-31
Anticipated expiration: 2031-11-24

Abstract

The utility model discloses a novel piston ring, which at least comprises a piston ring which is sleeved on the circumferential outer surface of a piston and is used for sealing between the piston and a cylinder, wherein the piston ring comprises an upper ring body and a lower ring body, the upper ring body is positioned on the upper part of the lower ring body along the axial direction, the butt joint surfaces of the upper ring body and the lower ring body are mutually attached, an upper opening part and a lower opening part are respectively arranged on the upper ring body and the lower ring body, the upper opening part and the lower opening part are mutually staggered and arranged along the circumferential direction, and the openings of the upper opening part and the lower opening part extend towards the opposite directions.

Description

Novel piston ring

Technical Field

The utility model relates in particular to a component of a piston machine, in particular of an internal combustion engine or an air compressor.

Background

In the existing piston machines such as gasoline engines, diesel engines and air compressors, a piston ring is arranged in each piston ring groove of a piston. Therefore, a piston of an internal combustion engine is generally provided with two to three gas ring grooves and one oil ring groove, and a gas ring or an oil ring is correspondingly placed in the grooves to prevent gas leakage and oil leakage. However, after the piston ring and the piston with the structure are used for a period of time, the opening gap of the piston ring is enlarged due to the abrasion of the excircle of the piston ring, so that the air leakage between the piston and the cylinder is increased, the fuel oil and engine oil consumption of an internal combustion engine exceeds the standard, and the power is obviously reduced.

The problem to be solved is how to provide a piston ring which can effectively complete the sealing task between the piston and the cylinder when the outer circle of the piston ring is obviously worn, prevent leakage and prolong the service life of the piston ring.

Disclosure of Invention

The utility model aims to provide a novel piston ring which can effectively complete the sealing task between a piston and a cylinder when the outer circle of the piston ring is remarkably worn, prevent leakage and prolong the service life of the piston ring.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a novel piston ring, contains at least that one cover establishes at piston circumference surface and is used for sealed piston ring between piston and the cylinder, wherein, the piston ring contains ring body and lower ring body, follows axial direction go up the ring body and lie in the upper portion of lower ring body, and both butt joint faces hug closely each other, go up the ring body with be equipped with upper shed portion and under shed portion on the ring body down respectively, follow circumference the upper shed portion with the under shed portion staggers each other arranges, just the upper shed portion with the opening of under shed portion extends towards opposite direction each other. Further, the upper ring body and the lower ring body are integrally formed or are mutually independent components. Further, when the upper ring body and the lower ring body are independent parts, the upper ring body and the lower ring body are connected through an adhesive. Further, the upper ring body and the lower ring body have the same external shape and the same size. Further, the upper opening portion and the lower opening portion are not on the same straight line in the axial direction. Further, the radian of the difference between the upper opening part and the lower opening part along the circumferential direction is A, and A is greater than or equal to 1/6 pi and less than or equal to 5/6 pi. Further, the upper opening portion and the lower opening portion have a U-shaped configuration. Furthermore, the included angle between the extension line of the opening end of the upper opening part and the radial plane of the upper ring body is B, wherein B is more than or equal to 20 degrees and less than or equal to 90 degrees. Further, an extension line of the open end of the upper opening portion and an extension line of the open end of the lower opening portion are parallel to each other. Further, the height C of the upper opening part in the axial direction, and the height D,1/3D of the piston ring are more than or equal to C and less than or equal to 1/2D.

Compared with the prior art, the utility model has the beneficial effects that: the piston ring comprises an upper ring body and a lower ring body, the upper ring body is arranged on the upper part of the lower ring body along the axial direction, the butt joint surfaces of the upper ring body and the lower ring body are mutually attached, and an upper opening part and a lower opening part are respectively arranged on the upper ring body and the lower ring body. The piston ring of the present invention has no sealing notch even if the outer circle is worn to two thirds of the original thickness and the opening gap is obviously increased, because the openings of the two rings superposed with each other are staggered at a certain position, the opening of the upper ring is just closed by the ring surface of the lower ring and the opening of the lower ring is just closed by the ring surface of the upper ring in the same ring groove of the piston, when the piston moves up and down along with the piston, the two rings are tightly attached together, therefore, no notch exists between the piston ring and the cylinder on the same ring surface contacted with the two rings, thus, the air leakage is avoided, and the service life of the piston ring can be prolonged by three times.

Drawings

FIG. 1 is a schematic view of the actual installation of the novel piston ring of the present invention;

FIG. 2 is a structural view of the novel piston ring of the present invention;

FIG. 3 is an enlarged view of the upper opening and the lower opening in the novel piston ring of the present invention;

fig. 4 is an enlarged view of the upper opening and the lower opening in the piston ring of the novel piston ring of the present invention.

Description of the reference numerals:

1 piston, 2 piston rings, 3 upper ring bodies, 4 lower ring bodies, 5 upper opening parts and 6 lower opening parts.

Detailed Description

For the purpose of promoting a clear understanding of the objects, aspects and advantages of the embodiments of the utility model, reference will now be made to the drawings and detailed description, wherein there are shown in the drawings and described in detail, various modifications of the embodiments described herein, and other embodiments of the utility model will be apparent to those skilled in the art.

The exemplary embodiments of the present invention and the description thereof are provided to explain the present invention and not to limit the present invention. Additionally, the same or similar numbered elements/components used in the drawings and the embodiments are used to represent the same or similar parts.

As used herein, "first," "second," …, etc., are not specifically intended to mean in sequence or order, nor are they intended to be limiting, but merely to distinguish between elements or operations described in the same technical language.

With respect to directional terms used herein, for example: up, down, left, right, front or rear, etc., are directions with reference to the drawings only. Accordingly, the directional terminology used is intended to be illustrative and not limiting of the present disclosure.

As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including but not limited to.

As used herein, "and/or" includes any and all combinations of the described items.

As used herein, the terms "substantially", "about" and the like are used to modify any slight variation in quantity or error that does not alter the nature of the variation. Generally, the range of slight variations or errors modified by such terms may be 20% in some embodiments, 10% in some embodiments, 5% in some embodiments, or other values. It should be understood by those skilled in the art that the aforementioned values can be adjusted according to actual needs, and are not limited thereto.

Certain terms used to describe the present application are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the present application.

The embodiment of the utility model provides a novel piston ring, as shown in fig. 1-4, at least comprising a piston ring 2 which is sleeved on the circumferential outer surface of a piston and is used for sealing between the piston 1 and a cylinder, wherein the piston ring comprises an upper ring body 3 and a lower ring body 4, the upper ring body 3 is positioned on the upper part of the lower ring body 4 along the axial direction, the butt joint surfaces of the upper ring body 3 and the lower ring body 4 are tightly attached to each other, an upper opening part 5 and a lower opening part 6 are respectively arranged on the upper ring body 3 and the lower ring body 4, the upper opening part 5 and the lower opening part 6 are arranged in a staggered manner along the circumferential direction, and the openings of the upper opening part 5 and the lower opening part 6 extend towards the opposite directions. Specifically, the method comprises the following steps: the piston ring comprises at least one piston ring 2 which is sleeved on the circumferential outer surface of a piston 1 and is used for sealing between the piston 1 and a cylinder, wherein the piston ring 2 comprises an upper ring body 3 and a lower ring body 4, the upper ring body 3 is positioned at the upper part of the lower ring body 4 along the axial direction, the butt joint surfaces of the upper ring body 3 and the lower ring body 4 are mutually attached, and an upper opening part 5 and a lower opening part 6 are respectively arranged on the upper ring body 3 and the lower ring body 4. The piston ring of the utility model, even if the excircle is abraded to the thickness only two thirds originally, when the opening gap has already been obviously enlarged, still can not form the sealed gap, because the opening of two pieces of rings that superpose each other stagger certain position, in the same ring groove of the piston, the opening of the upper piece of rings is just closed by the ring surface of the lower piece of rings, and the opening of the lower piece of rings is just closed by the ring surface of the upper piece of rings, while moving up and down with the piston, two pieces of rings are closely attached together, therefore on the same ring surface that two pieces of rings contact, there is no gap between air cylinder and the piston ring, therefore can not leak gas, the life-span of the piston ring can lengthen three times, specifically, to various larger specification pistons above 50 millimetres of diameter, can only set up a gas ring groove and an oil ring groove; for various small-sized pistons (such as pistons of motorcycle engines) with the diameter of less than 50 mm, only one gas ring groove and one oil ring groove can be arranged, so that the structure of the piston can be simplified; it can raise power of various piston machines, save fuel oil, reduce engine oil consumption, reduce cost and prolong service life.

It should be noted that, the upper ring body 3 and the lower ring body 4 are integrally formed, or are mutually independent components, and when the upper ring body 3 and the lower ring body 4 are independent components, they are connected by an adhesive, thereby ensuring that they can be tightly connected together without moving. In addition, the upper ring body 3 and the lower ring body 4 are identical in appearance and size, the upper opening part 5 and the lower opening part 6 are not on the same straight line in the axial direction, the radian of the difference between the upper opening part 5 and the lower opening part 6 in the circumferential direction is A, 1/6 pi is not less than A and not more than 5/6 pi, the included angle between the extension line of the opening end of the upper opening part and the radial plane of the upper ring body is B, and the included angle between the extension line of the opening end of the upper opening part and the radial plane of the upper ring body is not less than 20 DEG and not more than 90 deg. In addition, the upper opening portion 5 and the lower opening portion 6 have a U-shaped outer shape, and are actually used. In addition, it is worth mentioning that the extension line of the opening end of the upper opening part 5 is parallel to the extension line of the opening end of the lower opening part 6, the height C of the upper opening part 5 in the axial direction and the height D,1/3D and C are not more than 1/2D, because the openings of the two rings which are overlapped with each other are staggered at a certain position, in the same ring groove of the piston, the opening of the upper ring is just closed by the ring surface of the lower ring, and the opening of the lower ring is just closed by the ring surface of the upper ring, when the two rings move up and down along with the piston, the two rings are tightly attached together, so that on the same ring surface where the two rings are contacted, the gap between the piston ring and the cylinder is not existed, therefore, the air leakage is avoided, and the service life of the piston ring can be prolonged by three times.

The above description is only an exemplary embodiment of the present invention, and any equivalent changes and modifications made by those skilled in the art without departing from the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a novel piston ring, its characterized in that contains a cover at least and establishes at piston circumference surface and be used for sealed piston ring between piston and the cylinder, wherein, the piston ring contains ring body and lower ring body, follows axial direction go up the ring body and lie in the upper portion of lower ring body, and both butt joint faces hug closely each other, go up the ring body with be equipped with upper shed portion and lower opening portion on the ring body down respectively, follow circumference the upper shed portion with lower opening portion staggers each other and arranges, just the upper shed portion with the opening of lower opening portion extends towards opposite direction each other.

2. The novel piston ring as set forth in claim 1 wherein said upper ring body and said lower ring body are integrally formed or are separate components.

3. The novel piston ring as set forth in claim 2 wherein said upper ring body and said lower ring body are separate components and are joined by an adhesive.

4. The novel piston ring as set forth in claim 1 wherein said upper ring body and said lower ring body are identical in outer shape and equal in size.

5. The novel piston ring as set forth in claim 1 wherein said upper opening portion and said lower opening portion are not collinear in said axial direction.

6. The novel piston ring as set forth in claim 1, characterized in that said upper opening portion and said lower opening portion differ in radian measure in said circumferential direction by A, 1/6 π ≦ A ≦ 5/6 π.

7. The novel piston ring as set forth in claim 1 wherein said upper opening portion and said lower opening portion are formed in a U-shaped configuration.

8. The novel piston ring as claimed in claim 1, wherein an angle B is formed between an extension of an open end of said upper opening portion and a radial plane of said upper ring body, wherein B is 20 ° or more and 90 ° or less.

9. The novel piston ring as set forth in claim 1 wherein an extension of said open end of said upper opening portion and an extension of said open end of said lower opening portion are parallel to each other.

10. The novel piston ring as claimed in claim 1, wherein the height C of the upper opening in the axial direction is equal to or less than C, 1/3D and equal to or less than 1/2D.