CN214247520U - Aluminum piston - Google Patents
Aluminum piston Download PDFInfo
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- CN214247520U CN214247520U CN202022483077.2U CN202022483077U CN214247520U CN 214247520 U CN214247520 U CN 214247520U CN 202022483077 U CN202022483077 U CN 202022483077U CN 214247520 U CN214247520 U CN 214247520U
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- piston
- combustion chamber
- cooling oil
- ring groove
- wear
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Abstract
The utility model provides an aluminum piston relates to engine technical field, has solved the poor technical problem of aluminum piston cooling oil pocket to piston top, combustion chamber throat and first annular cooling effect that exists among the prior art. The aluminum piston comprises a piston main body, wherein a combustion chamber is arranged at the top of the piston main body, a first ring groove is arranged on the outer wall of the piston main body, and a cooling oil cavity is arranged between the first ring groove and the combustion chamber and is of an annular structure; the cooling oil cavity is positioned below the combustion chamber, and the position of the cooling oil cavity is higher than that of the first ring groove. The utility model is used for a can improve the cooling oil pocket to piston top, combustion chamber throat and first annular cooling effect's aluminium piston.
Description
Technical Field
The utility model belongs to the technical field of the engine technique and specifically relates to an aluminum piston is related to.
Background
Along with the improvement of engine explosion pressure and power, in order to improve the service performance of the piston, the aluminum piston needs a first ring groove embedded wear-resistant insert ring, the piston is provided with an annular oscillation cooling oil cavity structure (figure 1), the wear-resistant insert ring is embedded in the first ring groove of the aluminum piston in the current market, the thickness of the wear-resistant insert ring causes the inner diameter of the wear-resistant insert ring and the distance between a combustion chamber to be small, the height of a cooling oil cavity in the piston is lower than the position of the first ring groove, the distance between the cooling oil cavity and the top of the piston is larger, and the cooling effect of the cooling oil cavity on the top of the piston, the throat of the combustion chamber and the first ring groove is poor.
However, according to the working principle of the engine, the main lower side surface of the first ring groove is obviously worn by force during the working process of the piston, and the upper side surface and the bottom diameter of the first ring groove are not basically worn by force, so that the position of the cooling oil cavity in the piston can be adjusted by adjusting the sizes of the first ring groove and the wear-resistant insert ring.
The applicant has found that the prior art has at least the following technical problems: the cooling oil cavity of the existing aluminum piston has poor cooling effect on the top of the piston, the throat of the combustion chamber and the first ring groove.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an aluminum piston to solve the aluminum piston cooling oil pocket that exists among the prior art to piston top, combustion chamber throat and the poor technical problem of first annular cooling effect. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides an aluminum piston, including the piston main body, the top of piston main body is provided with the combustion chamber, be provided with first annular on the outer wall of piston main body, be provided with the cooling oil pocket between first annular and the combustion chamber, the cooling oil pocket is the annular structure; the cooling oil cavity is located below the combustion chamber, and the position of the cooling oil cavity is higher than the first annular groove.
Preferably, a wear-resistant insert ring is arranged on the lower side surface of the first ring groove.
Preferably, a wear-resistant insert ring is arranged only on the lower side surface of the first ring groove, and the bottom diameter of the wear-resistant insert ring is increased in size, so that the distance between the first ring groove and the combustion chamber can accommodate the cooling oil cavity.
Preferably, a circular arc-shaped flange is arranged on the second ring bank below the first ring groove, and a groove matched with the circular arc-shaped flange is formed in the middle of the wear-resistant insert ring.
Preferably, the piston main body is further provided with an oil inlet and an oil outlet, and the oil inlet and the oil outlet are both communicated with the cooling oil cavity.
Preferably, the outer wall of the piston main body is further provided with an oil return ring groove, and the oil return ring groove is located below the wear-resistant insert ring.
Preferably, the inner diameter of the wear-resistant insert ring is not smaller than the bottom diameter of the first ring groove.
Preferably, the combustion chamber is a W-shaped combustion chamber.
Preferably, the wear insert is cast into the piston body by casting.
Preferably, the piston body is made of an aluminum alloy material.
The utility model has the advantages that: the utility model provides an aluminum piston first annular with be provided with the cooling oil pocket between the combustion chamber, the cooling oil pocket is located the below of combustion chamber, just the position of cooling oil pocket is higher than first annular makes the cooling oil pocket is close to combustion chamber and combustion chamber throat more, guarantees that the cooling oil pocket effectively cools off piston top surface, combustion chamber throat and first annular, reduces piston key point temperature.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic illustration of a prior art piston construction;
fig. 2 is a schematic structural diagram of the present invention.
In figure 1, a piston body; 2. a combustion chamber; 3. a first ring groove; 4. wear-resistant embedded rings; 5. cooling the oil cavity; 6. a circular arc flange; 7. a groove; 8. and an oil return ring groove.
Detailed Description
The contents of the present invention and the differences between the present invention and the prior art can be understood with reference to fig. 1 to 2 and the text. The invention will be described in further detail below (including the preferred embodiments) with reference to the drawings and illustrative examples of some alternative embodiments of the invention. It should be noted that: any technical features and any technical solutions in this embodiment are one or more of various optional technical features or optional technical solutions, and for the sake of brevity, this document cannot exhaust all the alternative technical features and alternative technical solutions of the present invention, and it is not convenient for each embodiment of the technical features to emphasize that it is one of various optional embodiments, so those skilled in the art should know that: can replace any technical means or combine two or more technical means or technical characteristics of the utility model provides an arbitrary or more technical means or technical characteristics mutually and obtain new technical scheme. Any technical features and any technical solutions in the present embodiment do not limit the scope of the present invention, and the scope of the present invention should include any alternative technical solutions that can be conceived by those skilled in the art without creative efforts and new technical solutions that can be obtained by combining any two or more technical means or technical features provided by the present invention with each other by those skilled in the art.
In the description of the present invention, it is to be noted that "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like are used in an orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is also to be understood that the terms "mounted", "connected" and "connected", unless expressly specified or limited otherwise, are intended to be interpreted broadly, as meaning either a fixed connection or a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.
The utility model provides an aluminum piston which can improve the cooling effect of a cooling oil cavity on the top of the piston, the throat of a combustion chamber and a first ring groove.
The technical solution provided by the present invention is explained in more detail with reference to fig. 1 to 2.
The utility model provides an aluminum piston, which comprises a piston main body, wherein the top of the piston main body is provided with a combustion chamber, the outer wall of the piston main body is provided with a first ring groove, a cooling oil cavity is arranged between the first ring groove and the combustion chamber, and the cooling oil cavity is of an annular structure; the cooling oil cavity is located below the combustion chamber, and the position of the cooling oil cavity is higher than the first annular groove.
The utility model provides an aluminum piston first annular with be provided with the cooling oil pocket between the combustion chamber, the cooling oil pocket is located the below of combustion chamber, just the position of cooling oil pocket is higher than first annular makes the cooling oil pocket is close to combustion chamber and combustion chamber throat more, guarantees that the cooling oil pocket effectively cools off piston top surface, combustion chamber throat and first annular, reduces piston key point temperature.
In an alternative embodiment, a wear-resistant insert ring is arranged on the lower side of the first ring groove.
As an alternative embodiment, a wear-resistant insert ring is arranged only on the lower side of the first ring groove, and the bottom diameter of the wear-resistant insert ring is increased in size, so that the distance between the first ring groove and the combustion chamber can accommodate the cooling oil cavity.
Because the main lower side surface of the first ring groove is obviously worn by force in the working process of the piston, and the upper side surface and the bottom diameter of the first ring groove are basically not worn by force, a wear-resistant insert ring is arranged on the lower side surface of the first ring groove, so that the wear resistance of the lower side surface of the first ring groove is not influenced; simultaneously, because only be provided with wear-resisting inlay circle at the downside of first annular, the wear-resisting inlay circle cancellation that originally lies in first annular base diameter and first annular upper flank makes the base diameter size grow of first annular, the degree of depth shallowly makes first annular with interval between the combustion chamber can hold the cooling oil pocket, guarantees that the position of cooling oil pocket is higher than first annular.
As an optional implementation mode, a circular arc-shaped flange is arranged on the second ring bank below the first ring groove, and a groove matched with the circular arc-shaped flange is arranged in the middle of the wear-resistant insert ring.
Because the downside of first annular is provided with wear-resisting inlay circle, wear-resisting inlay circle has the risk of droing in the piston use, so through setting up convex flange and recess for wear-resisting inlay circle can be fixed in the first annular, avoid appearing the condition that drops in the piston in-process.
As an optional implementation manner, the piston main body is further provided with an oil inlet and an oil outlet, and both the oil inlet and the oil outlet are communicated with the cooling oil cavity.
The effect of the cooling oil pocket that sets up is to cool off the heat dissipation to the piston main part, utilizes the oil inlet that sets up to let in the cooling oil in to the cooling channel, and the coolant liquid takes away the heat that produces in the piston main part combustion chamber from the oil-out to make the indoor heat that produces of piston heat dissipation take away more fast, improve the life-span of piston main part.
In an optional embodiment, the outer wall of the piston main body is further provided with an oil return ring groove, and the oil return ring groove is located below the wear-resistant insert ring.
The oil return ring groove is used for placing an oil return ring, so that when the piston does piston motion in the internal combustion engine, the oil return ring groove arranged on the piston main body is utilized to act on the engine oil attached to the inner wall of the piston cavity, the engine oil scraped by the oil ring can be enabled to return to the oil pan as soon as possible, and the engine oil consumption and carbon deposit are reduced.
In an alternative embodiment, the inner diameter of the wear-resistant insert ring is not smaller than the bottom diameter of the first ring groove.
The wear-resistant insert ring needs to be cast into the piston main body in a casting mode, so that the inner diameter of the wear-resistant insert ring is equal to or larger than the bottom diameter of the first ring groove.
In an alternative embodiment, the combustion chamber is a W-shaped combustion chamber.
In an alternative embodiment, the wear insert is cast into the piston body by casting.
As an alternative embodiment, the piston body is made of an aluminum alloy material.
Example 1:
the utility model provides an aluminum piston, including piston main body 1, piston main body 1 adopts aluminum alloy material to make, the top of piston main body 1 is provided with combustion chamber 2, be provided with first annular 3 on the outer wall of piston main body 1, because the main downside forced abrasion of first annular 3 is obvious in the piston working process, and the upper side and the footpath of first annular 3 are not forced to wear basically, so be in the downside of first annular 3 is provided with wear-resisting inlay ring 4 for the downside wearability of first annular 3 is not influenced; meanwhile, as the wear-resistant insert ring 4 is arranged only on the lower side surface of the first ring groove 3, and the wear-resistant insert rings 4 positioned on the bottom diameter of the first ring groove 3 and the upper side surface of the first ring groove 3 are eliminated, the bottom diameter of the first ring groove 3 is increased in size, and the depth is reduced, so that the distance between the first ring groove 3 and the combustion chamber 2 can accommodate the cooling oil cavity 5, and the cooling oil cavity 5 is of an annular structure; the cooling oil chamber 5 is located below the combustion chamber 2, and the cooling oil chamber 5 can be located higher than the first ring groove 3.
Further, a circular arc-shaped flange 6 is arranged on a second ring bank below the first ring groove 3, and a groove 7 matched with the circular arc-shaped flange 6 is formed in the middle of the wear-resistant insert ring 4. The circular arc-shaped flange 6 is matched with the groove 7 to fix the wear-resistant insert ring 4 on the first ring groove 3, so that the wear-resistant insert ring 4 cannot fall off in the use process of the piston.
Further, an oil inlet and an oil outlet are further formed in the piston main body 1, and the oil inlet and the oil outlet are communicated with the cooling oil cavity 5.
Further, still be equipped with oil return ring groove 8 on the outer wall of piston main body 1, oil return ring groove 8 is located the below of wear-resisting inlay circle 4.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (1)
1. An aluminum piston is characterized by comprising a piston main body, wherein a combustion chamber is arranged at the top of the piston main body, a first annular groove is formed in the outer wall of the piston main body, a cooling oil cavity is arranged between the first annular groove and the combustion chamber, and the cooling oil cavity is of an annular structure; the cooling oil cavity is positioned below the combustion chamber, and the position of the cooling oil cavity is higher than that of the first annular groove;
a wear-resistant insert ring is arranged on the lower side surface of the first ring groove;
a wear-resistant insert ring is arranged only on the lower side surface of the first ring groove, and the bottom diameter of the wear-resistant insert ring is increased in size, so that the space between the first ring groove and the combustion chamber can accommodate the cooling oil cavity;
and an arc-shaped flange is arranged on the second ring bank below the first ring groove, and a groove matched with the arc-shaped flange is arranged in the middle of the wear-resistant insert ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022483077.2U CN214247520U (en) | 2020-10-30 | 2020-10-30 | Aluminum piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022483077.2U CN214247520U (en) | 2020-10-30 | 2020-10-30 | Aluminum piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214247520U true CN214247520U (en) | 2021-09-21 |
Family
ID=77731177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022483077.2U Active CN214247520U (en) | 2020-10-30 | 2020-10-30 | Aluminum piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214247520U (en) |
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2020
- 2020-10-30 CN CN202022483077.2U patent/CN214247520U/en active Active
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