CN2554374Y - Inner-cooled insert ring for aluminium piston - Google Patents
Inner-cooled insert ring for aluminium piston Download PDFInfo
- Publication number
- CN2554374Y CN2554374Y CN 02214121 CN02214121U CN2554374Y CN 2554374 Y CN2554374 Y CN 2554374Y CN 02214121 CN02214121 CN 02214121 CN 02214121 U CN02214121 U CN 02214121U CN 2554374 Y CN2554374 Y CN 2554374Y
- Authority
- CN
- China
- Prior art keywords
- ring
- piston
- aluminum piston
- inlaid
- aluminium piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model provides an internal cooling inlaid ring used for an aluminum piston, belonging to the component used for aluminum piston. The utility model comprises an inlaid ring body (1); an internal cooling channel cavity (2) is arranged on the internal edge of the inlaid ring (1). For the internal cooling inlaid ring, the processing technique of the aluminum piston is the same as that of the wear-resistant inlaid ring, therefore the manufacture is convenient and the manufacturing quality is easy to master. The temperature of a firebox and a first annular groove can be largely reduced. When in use, the aluminum piston can effectively avoid the adherence of the annular groove and leads the first air ring of a high load engine piston to be able to adopt a rectangle ring with ideal sealing effect, thus the work conditions of each air ring and oil ring can be improved, motor oil consumption is reduced, and the cooling limit of the aluminum piston can also be greatly improved.
Description
Technical field
The utility model provides a kind of structure body that is used on the aluminium piston, especially a kind of edge circle.
Background technique
Piston is made up of head, ring bank, skirt section.For improving the wear resistance of piston, people are at the first annular groove place castingin wear resisting cast iron edge circle of aluminium piston.For reducing high load, the operating conditions lower combustion chamber of high pressure of explosion and the temperature of first annular groove, people also are cast into annular salt core at piston crown when cast pistons, after casting is finished, with the dissolving of salt core, form inner cooling path again.When the aluminium piston used, cooling liquid flow through in inner cooling path.The aluminium piston of this inner cooling path manufacture, processing technology complexity, quality of processing are difficult to control.
Summary of the invention
Technical problem to be solved in the utility model provides cold edge circle in a kind of aluminium piston, to improve the convenience of the aluminium piston manufacturing of being with inner cooling path.
The utility model is achieved in that the aluminium piston with interior cold edge circle, and it has the edge circle body, at described edge circle body inner edge the inner cooling path cavity is arranged.
The aluminium piston that adopts said structure is with interior cold edge circle, and edge circle body and inner cooling path cavity are fixed together by welding etc.The casting processing technology of aluminium piston is identical, easily manufactured during with the castingin abrasion-proof inserted ring, and quality of processing is easy to grasp.Adopt the aluminium piston of this edge circle to compare, low about 5 ℃ of chamber temperature, low about 30 ℃ of the temperature of first annular groove bottom with the aluminium piston of the inner cooling path that adopts the salt core to make.This is because the edge circle body is close in the position of inner cooling path cavity, and is therefore more remarkable to the cooling effect of high-order annular groove.Because the temperature of first annular groove reduces significantly, in the using process of aluminium piston, can effectively prevent the adhesion of annular groove, make high load engine piston top compression ring can adopt the desirable rectangular ring of sealing effect, improve the operating conditions of each compression ring, oil ring, thereby reduced consumption of lubricating oil.Estimate through the actual endurance test method that adopts limited element analysis technique and high load thermal cycle running, can not produce bigger stress around this edge circle, the edge circle can not come off, and has higher reliability.
Description of drawings
Fig. 1 is the cross-sectional schematic of a kind of example structure of the utility model.
Fig. 2 is the cross-sectional schematic of its another kind of example structure.
Fig. 3 is the schematic representation after the utility model is used on the aluminium piston.
Embodiment
The embodiment who provides below in conjunction with accompanying drawing illustrates structure of the present utility model.
As shown in drawings, the aluminium piston of the utility model is with interior cold edge circle, and it has edge circle body (1), at described edge circle body (1) inner edge inner cooling path cavity (2) is arranged.
Described inner cooling path cavity (2) cross section is 3 shapes.This shape is anti-C shape.This is after whole aluminium piston is vertically cut open along diameter with interior cold edge circle, the shape in its cross section, left side, and the shape in its cross section, right side is c-shaped.
The outer ring of this edge circle (edge circle body), inner ring (inner cooling path cavity) are fixed together by plasma welding mode.After being cast on the aluminium piston, the outer ring constitutes first annular groove, and inner ring becomes inner cooling path.In the using process of aluminium piston, cooling liquid is passed through in inner ring, and the firing chamber and the first annular groove place are lowered the temperature.The inner cooling path of this mode is compared with the inner cooling path that the salt core forms, and takies little space in the aluminium piston, just can make the aluminium piston obtain good cooling, thereby the cooling boundary of aluminium piston is improved significantly.
Claims (2)
1, the aluminium piston is with interior cold edge circle, and it has edge circle body (1), it is characterized in that, at described edge circle body (1) inner edge inner cooling path cavity (2) is arranged.
2, aluminium piston as claimed in claim 1 is characterized in that with interior cold edge circle, and described inner cooling path cavity (2) cross section is
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02214121 CN2554374Y (en) | 2002-04-22 | 2002-04-22 | Inner-cooled insert ring for aluminium piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02214121 CN2554374Y (en) | 2002-04-22 | 2002-04-22 | Inner-cooled insert ring for aluminium piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2554374Y true CN2554374Y (en) | 2003-06-04 |
Family
ID=33693507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02214121 Expired - Fee Related CN2554374Y (en) | 2002-04-22 | 2002-04-22 | Inner-cooled insert ring for aluminium piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2554374Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332891A (en) * | 2018-11-06 | 2019-02-15 | 佛山市宏石激光技术有限公司 | A kind of method for laser welding of interior cold insert |
| CN110935848A (en) * | 2019-12-13 | 2020-03-31 | 广州扶商缸套有限公司 | Inner cooling oil duct of aluminum alloy piston |
| CN112610351A (en) * | 2020-12-21 | 2021-04-06 | 中国北方发动机研究所(天津) | Piston structure for strengthening cooling of annular groove |
| CN113187618A (en) * | 2021-05-08 | 2021-07-30 | 滨州学院 | Novel lightweight inner-cooling integrated aluminum piston |
-
2002
- 2002-04-22 CN CN 02214121 patent/CN2554374Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332891A (en) * | 2018-11-06 | 2019-02-15 | 佛山市宏石激光技术有限公司 | A kind of method for laser welding of interior cold insert |
| CN110935848A (en) * | 2019-12-13 | 2020-03-31 | 广州扶商缸套有限公司 | Inner cooling oil duct of aluminum alloy piston |
| CN112610351A (en) * | 2020-12-21 | 2021-04-06 | 中国北方发动机研究所(天津) | Piston structure for strengthening cooling of annular groove |
| CN113187618A (en) * | 2021-05-08 | 2021-07-30 | 滨州学院 | Novel lightweight inner-cooling integrated aluminum piston |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030604 |