CN201925041U - Piston ring assembly - Google Patents
Piston ring assembly Download PDFInfo
- Publication number
- CN201925041U CN201925041U CN201120061539XU CN201120061539U CN201925041U CN 201925041 U CN201925041 U CN 201925041U CN 201120061539X U CN201120061539X U CN 201120061539XU CN 201120061539 U CN201120061539 U CN 201120061539U CN 201925041 U CN201925041 U CN 201925041U
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- China
- Prior art keywords
- ring
- oil
- wear
- piston
- piston ring
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- 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 discloses a piston ring assembly which comprises a first air ring, a second air ring and a third oil ring, wherein the first air ring, the second air ring and the third oil ring are orderly arranged in a piston ring groove from top to bottom; the two air rings are respectively provided with a straight notch; a nitriding layer is arranged on the surface of the external circumference of the first air ring, so that the first air ring with high surface hardness is formed and has good wear-resistant property; a liquid sand blasting layer is arranged on the surface of the external circumference of the second air ring, and phosphate film layers are arranged on the other surfaces, so that the surface finish of the surface of the second air ring can be enhanced, the strength of the surface can be enhanced, and the wear-resistant property is good; and a chromium coating layer is arranged on the surface of the external circumference of the third oil ring, the phosphate film layers are arranged on the other surfaces, and a chromium coating layer is arranged on the surface of the external circumference of the oil ring. As the chromium coating layer has high hardness and small friction coefficient, the wear-resistant property of the piston ring is obviously improved, and the chromium coating layer has a good oil storage structure.
Description
Technical field
The utility model belongs to the technical field of vehicular engine, and specifically, the utility model relates to the piston ring group of motor.
Background technique
Three annular grooves are set on traditional piston usually, piston ring is housed in the annular groove, piston ring comprises compression ring and oil ring.These piston rings can be realized various functions, and guidance piston in cylinder for example distributes on the slip surface of cylinder and/or scrapes off lubricant oil, realize the firing chamber to the sealing of crankcase etc., and in working order down, they bear heavy load.Therefore, the slip surface of these piston rings and cylinder is in direct rubbing contact state, and firing pressure need be born by them, and finally bigger wearing and tearing can appear in piston ring, thereby reduces its sealing, influences the working life of vehicle power and motor.
The model utility content
Technical problem to be solved in the utility model is at the deficiencies in the prior art, a kind of piston ring group that has than high wear resistance is provided, prevent that bigger wearing and tearing from appearring down in piston ring group in working order, improve the sealing between piston and the cylinder, guarantee the output of vehicle power and the normal use of motor.
In order to solve the problems of the technologies described above; the technological scheme that the utility model adopted is: a kind of piston ring group; comprise the top compression ring, the second road compression ring and the 3rd road oil ring that are installed in successively in the piston ring groove from top to bottom; be equipped with straight cut on two compression rings, be provided with wear-resistant protective layer on the outer circumference portion surface of described compression ring and oil ring.
Wear-resistant protective layer on the outer circumference portion surface of described top compression ring is a nitride layer.
Wear-resistant protective layer on the outer circumference portion surface of the described second road compression ring is the liquid blasting layer, and remaining surface has phosphorization membrane.
Wear-resistant protective layer on the outer circumference portion surface of described the 3rd road oil ring is a chromium coating, and remaining surface has phosphorization membrane.
Described top compression ring is that section configuration is the bucket face ring of barrel face.
The described second road compression ring is the twist type ring that is provided with down grooving.
Described the 3rd road oil ring is the steel band combined oil ring, comprises expander oil rail and upper and lower two oil ring scraping blades, and the wear-resistant protective layer on the outer circumference portion surface of oil ring scraping blade is a chromium coating, and remaining surface has phosphorization membrane.
Advantage of the present utility model is on the outer circumference portion surface of top compression ring nitride layer to be set, and forms the top compression ring with high surfaces hardness, makes it have the excellent abrasive energy; Outer circumference portion surface at the second road compression ring is provided with the liquid blasting layer, can improve the degree of finish on compression ring surface, second road, also can improve the intensity on surface simultaneously, makes it have the excellent abrasive energy; Outer circumference portion surface at oil ring is provided with chromium coating, and chromium coating hardness is very high, and friction factor is very little, significantly improves the wear resistance of piston ring, and chromium coating has good store oil structure.
Description of drawings
Fig. 1 is the structural representation of the utility model top compression ring;
Fig. 2 is an A-A generalized section among Fig. 1;
Fig. 3 is the structural representation of the utility model second road compression ring;
Fig. 4 is a B-B generalized section among Fig. 3;
Fig. 5 is the structural representation of the utility model oil ring;
Fig. 6 is a C-C generalized section among Fig. 5;
Mark among the above-mentioned figure is: 1, top compression ring; 2, the second road compression ring; 3, oil ring; 4, oil ring scraping blade; 5, expander oil rail.
Embodiment
A kind of piston ring group; comprise the top compression ring 1, the second road compression ring 2 and the 3rd road oil ring 3 that are installed in successively in the piston ring groove from top to bottom; be equipped with straight cut on two compression rings 1,2, be provided with wear-resistant protective layer on the outer circumference portion surface of two compression rings 1,2 and oil ring 3.
As shown in Figure 1 and Figure 2, the wear-resistant protective layer on the outer circumference portion surface of top compression ring 1 is a nitride layer, and remaining surface also is provided with nitride layer, thereby forms the top compression ring 1 with high surfaces hardness, makes it have the excellent abrasive energy; And top compression ring 1 is the bucket face ring of bucket face for section configuration, and barrel-shaped ring surface is barrel-shaped, and its advantage is can adapt to piston better to swing in cylinder, makes it to match with cylinder and piston better, has good sealing property.
As shown in Figure 3, Figure 4, the wear-resistant protective layer on the outer circumference portion surface of the second road compression ring 2 is the liquid blasting layer, and remaining surface has phosphorization membrane.The liquid blasting layer is set, can improves the degree of finish on the second road compression ring, 2 surfaces, also can improve the intensity on surface simultaneously, make it have the excellent abrasive energy; And second road compression ring 2 for being provided with down the twist type ring of grooving, this structure has good sealing property and frizing characteristic.
As Fig. 5, shown in Figure 6, the 3rd road oil ring 3 is the steel band combined oil ring, comprises expander oil rail 5 and upper and lower two oil ring scraping blades 4, and the characteristics of this ring are the contact pressure height, and scraping blade can move respectively up and down, has good adaptability; Every scraping blade not only cylindrical contacts with cylinder surface and carries out frizing, stops on the lubricating oil and scurries, and also keep in touch between upper and lower end face and the upper and lower end face of annular groove, seals, so oil sealing is respond well.Wear-resistant protective layer on the outer circumference portion surface of oil ring scraping blade 4 is a chromium coating, and remaining surface has phosphorization membrane, and chromium coating hardness is very high, and friction factor is very little, significantly improves the wear resistance of piston ring, and chromium coating has good store oil structure.
Above-mentioned twice compression ring 1,2 and oil ring 3 are handled through alramenting, make its surface generate one deck phosphating coat, and piston ring is played rust inhibition, improve the initial fitting property of piston ring simultaneously.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technological scheme carry out; or design of the present utility model and technological scheme are directly applied to other occasion without improving, all within protection domain of the present utility model.
Claims (7)
1. piston ring group; comprise the top compression ring (1), the second road compression ring (2) and the 3rd road oil ring (3) that are installed in successively in the piston ring groove from top to bottom; be equipped with straight cut on two compression rings (1,2), it is characterized in that: the outer circumference portion surface at described compression ring (1,2) and oil ring (3) is provided with wear-resistant protective layer.
2. piston ring group according to claim 1 is characterized in that: the wear-resistant protective layer on the outer circumference portion surface of described top compression ring (1) is a nitride layer.
3. piston ring group according to claim 1 and 2 is characterized in that: the wear-resistant protective layer on the outer circumference portion surface of the described second road compression ring (2) is the liquid blasting layer, and remaining surface has phosphorization membrane.
4. piston ring group according to claim 3 is characterized in that: the wear-resistant protective layer on the outer circumference portion surface of described the 3rd road oil ring (3) is a chromium coating, and remaining surface has phosphorization membrane.
5. piston ring group according to claim 4 is characterized in that: described top compression ring (1) is the bucket face ring of section configuration for the bucket face.
6. piston ring group according to claim 5 is characterized in that: the described second road compression ring (2) is for being provided with down the twist type ring of grooving.
7. piston ring group according to claim 6; it is characterized in that: described the 3rd road oil ring (3) is the steel band combined oil ring; comprise expander oil rail (5) and upper and lower two oil ring scraping blades (4); wear-resistant protective layer on the outer circumference portion surface of oil ring scraping blade (4) is a chromium coating, and remaining surface has phosphorization membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120061539XU CN201925041U (en) | 2011-03-10 | 2011-03-10 | Piston ring assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120061539XU CN201925041U (en) | 2011-03-10 | 2011-03-10 | Piston ring assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201925041U true CN201925041U (en) | 2011-08-10 |
Family
ID=44428894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120061539XU Expired - Fee Related CN201925041U (en) | 2011-03-10 | 2011-03-10 | Piston ring assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201925041U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913338A (en) * | 2011-10-21 | 2013-02-06 | 上汽通用五菱汽车股份有限公司 | Engine |
| CN108425764A (en) * | 2018-03-29 | 2018-08-21 | 贾守训 | A kind of novel piston ring |
| CN115306580A (en) * | 2022-08-29 | 2022-11-08 | 奇瑞汽车股份有限公司 | Method for improving quality of engine oil ring scraper |
-
2011
- 2011-03-10 CN CN201120061539XU patent/CN201925041U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913338A (en) * | 2011-10-21 | 2013-02-06 | 上汽通用五菱汽车股份有限公司 | Engine |
| CN108425764A (en) * | 2018-03-29 | 2018-08-21 | 贾守训 | A kind of novel piston ring |
| CN115306580A (en) * | 2022-08-29 | 2022-11-08 | 奇瑞汽车股份有限公司 | Method for improving quality of engine oil ring scraper |
| CN115306580B (en) * | 2022-08-29 | 2024-03-01 | 奇瑞汽车股份有限公司 | Method for improving quality of engine oil ring scraping blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20200310 |