CN209308847U - A kind of novel internal combustion engine piston - Google Patents
A kind of novel internal combustion engine piston Download PDFInfo
- Publication number
- CN209308847U CN209308847U CN201822188469.9U CN201822188469U CN209308847U CN 209308847 U CN209308847 U CN 209308847U CN 201822188469 U CN201822188469 U CN 201822188469U CN 209308847 U CN209308847 U CN 209308847U
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- China
- Prior art keywords
- annular groove
- pin hole
- piston
- combustion engine
- internal combustion
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Abstract
A kind of novel internal combustion engine piston, including top, top and skirt section, it is characterized in that the top is provided with ceramic layer, the bond strength of ceramic layer and matrix is high, high temperature resistant, ablation resistance is good, playing prevents top crackle, breakdown, the effect of ablation, and there is certain thermal resistance performance, the top is provided with annular groove, abrasion-proof inserted ring is provided at first annular groove on top, enhance the wear-resisting property and high temperature resistant anti-deformation ability of the first annular groove, the side of first annular groove is provided with oil cooling gallery, the heat on top is taken away by high pressure cooling oil, prevent top from overheating, the skirt section is provided with pin hole, the pin hole is provided with copper sheathing, enhance pin hole intensity, reduce the risk of pin hole fracture；The high temperature resistant of piston and the performance of resistance to ablation are improved, while the intensity of piston, wearability and corrosion resistance are also improved, is more applicable in the high power density engine applied to working environment harshness.
Description
Technical field
The utility model relates to gas engine part technical field more particularly to a kind of novel internal combustion engine pistons.
Background technique
Piston is parts reciprocating in Motor Engine Cylinder body.The basic structure of piston can be divided into top, on
Portion and skirt section.Top land is the major part for forming combustion chamber, and shape is related with selected combustion-chamber shape.In general
Combustion engine piston structure is fairly simple, and with the development and application of high power density engine, power per liter, maximum detonation pressure are continuously improved,
Increasingly harshness is required to piston, it is single to have been unable to meet requirement from aluminum alloy materials optimization.
Summary of the invention
To solve the above-mentioned problems, the utility model provides a kind of novel internal combustion engine piston, provides a kind of high temperature resistant, resistance to
Ablative good internal combustion engine.To achieve the above object, a kind of technical solution that the utility model is taken are as follows: internal combustion engine
Piston, including top, top and skirt section, the top are provided with ceramic layer, the bond strength height of ceramic layer and matrix, resistance to height
Temperature, ablation resistance are good, play the role of preventing top crackle, breakdown, ablation, and have certain thermal resistance performance, it is described on
Portion is provided with annular groove, is provided with abrasion-proof inserted ring at first annular groove on top, enhances the wear-resisting property and high temperature resistant of the first annular groove
The side of anti-deformation ability, the first annular groove is provided with oil cooling gallery, and the heat on top is taken away by high pressure cooling oil, prevents top
Overheat, the skirt section are provided with pin hole, and the pin hole is provided with copper sheathing, enhance pin hole intensity, reduce pin hole fracture
Risk.
Further, the thickness of ceramic layer is set as 40-100um.
Further, it is provided with Friction-Reducing Coating on the outside of skirt section, improves lubricant effect when piston cold start-up.
Further, it is provided with phosphating coat on the outside of top, improves the Corrosion Protection on top.
Preferably, the material selection cast iron of abrasion-proof inserted ring, the wear-resisting property and heat resistance of cast iron are good, cheap, fit
Close large-scale production.
Compared with prior art, the utility model has the following beneficial effects: improving the high temperature resistant and resistance to ablation of piston
Performance, while the intensity of piston, wearability and corrosion resistance are also improved, and are more applicable in harsh applied to working environment
High power density engine.
Detailed description of the invention
The utility model is described in further detail below in conjunction with attached drawing.
Attached drawing 1 is the outline structural diagram of the utility model；
Attached drawing 2 is the schematic cross-sectional view of the utility model
In attached drawing: 1, top, 2, top, the 21, first annular groove, 22, abrasion-proof inserted ring, 23, oil cooling gallery, 3, skirt section, 31, pin
Hole, 32, copper sheathing, 33, Friction-Reducing Coating.
Specific embodiment
In order to enable those skilled in the art to better understand the technical solutions of the present invention, 1, attached drawing with reference to the accompanying drawing
2 and specific embodiment the utility model is further described.
As shown in attached drawing 1, attached drawing 2, a kind of novel internal combustion engine piston, including top 1, top 2 and skirt section 3, the top
The top on top 2 is arranged in portion 1, and the lower end on top 2 is arranged in the skirt section 3, and the top 1 is provided with ceramic layer, institute
It states top 2 and is provided with annular groove, first annular groove 21 on top 2 is provided with abrasion-proof inserted ring 22, and the side of the first annular groove 21 is provided with oil
Cold passage 23, the skirt section 3 are provided with pin hole 31, are provided with copper sheathing 32 on the inside of the pin hole 31.
Further, the thickness of ceramic layer is set as 40-100um.
Further, the outside in skirt section 3 is provided with Friction-Reducing Coating 33, improves lubricant effect when piston cold start-up.
Further, the outside on top 2 is provided with phosphating coat, improves the Corrosion Protection on top.
The working principle and the course of work of the utility model are as follows: the bond strength of ceramic layer and matrix is high, high temperature resistant, resistance to
It is ablative good, play the role of preventing top crackle, breakdown, ablation, and there is certain thermal resistance performance；Abrasion-proof inserted ring 22
Material selection cast iron, the wear-resisting property and heat resistance of cast iron are good, and wear-resisting property and the high temperature resistant for enhancing the first annular groove 21 are anti-
Deformability；High pressure cooling oil takes away the heat on top by oil cooling gallery 23, prevents top from overheating；The setting of copper sheathing 32 enhances
Pin hole 31 intensity reduces the risk that pin hole 31 is broken；Skirt section 3 sprays lubrication effect when Friction-Reducing Coating 33 improves piston cold start-up
Fruit；Piston entirety phosphatization makes top 2 form one layer of phosphating coat, and phosphating coat improves the Corrosion Protection on top 2.
Compared with prior art, the utility model has the following beneficial effects: improving the high temperature resistant and resistance to ablation of piston
Performance, while the intensity of piston, wearability and corrosion resistance are also improved, and are more applicable in harsh applied to working environment
High power density engine.
Using technical solution described in the utility model or those skilled in the art in technical solutions of the utility model
Under inspiration, similar technical solution is designed, and reaches above-mentioned technical effect, is the protection model for falling into the utility model
It encloses.
Claims (4)
1. a kind of novel internal combustion engine piston, including top (1), top (2) and skirt section (3), it is characterized in that the top (1) is set
The top in top (2) is set, the skirt section (3) are arranged in the lower end of top (2), and top (1) is provided with ceramic layer, top
(2) it is provided with annular groove, first annular groove (21) of top (2) is provided with abrasion-proof inserted ring (22), the side setting of the first annular groove (21)
Have oil cooling gallery (23), skirt section (3) are provided with pin hole (31), are provided with copper sheathing (32) on the inside of the pin hole (31).
2. novel internal combustion engine piston according to claim 1, it is characterized in that the thickness of ceramic layer is set as 40-100um.
3. novel internal combustion engine piston according to claim 1, it is characterized in that being provided with Friction-Reducing Coating on the outside of skirt section (3)
(33).
4. novel internal combustion engine piston according to claim 1, it is characterized in that being provided with phosphating coat on the outside of top (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822188469.9U CN209308847U (en) | 2018-12-25 | 2018-12-25 | A kind of novel internal combustion engine piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822188469.9U CN209308847U (en) | 2018-12-25 | 2018-12-25 | A kind of novel internal combustion engine piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209308847U true CN209308847U (en) | 2019-08-27 |
Family
ID=67678730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822188469.9U Active CN209308847U (en) | 2018-12-25 | 2018-12-25 | A kind of novel internal combustion engine piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209308847U (en) |
-
2018
- 2018-12-25 CN CN201822188469.9U patent/CN209308847U/en active Active
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