CN202746030U - Combined type abrasion proof piston ring of diamond-like coating layer - Google Patents
Combined type abrasion proof piston ring of diamond-like coating layer Download PDFInfo
- Publication number
- CN202746030U CN202746030U CN 201220305106 CN201220305106U CN202746030U CN 202746030 U CN202746030 U CN 202746030U CN 201220305106 CN201220305106 CN 201220305106 CN 201220305106 U CN201220305106 U CN 201220305106U CN 202746030 U CN202746030 U CN 202746030U
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- Prior art keywords
- piston ring
- ring
- combined type
- diamond
- type abrasion
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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 provides a combined type abrasion proof piston ring of a diamond-like coating layer, and aims to solve the problems that the piston ring leaks gas and oil, and has poor abrasive resistance. The combined type abrasion proof piston ring comprises a first piston ring and a second piston ring which are arranged in the same ring groove so as to be combined for use, wherein the first piston ring and the second piston ring are both provided with gaps. The combined type abrasion proof piston ring is characterized in that the included angle between the gaps and a horizontal plane is 45 degrees; the thickness of an external ring side of the first piston ring is one fifth that of an internal ring side of the first piston ring; the thickness of the external ring side of the second piston ring is five times that of the internal ring side of the second piston ring; the first piston ring and the second piston ring have equal radius of an inner circle and an outer circle; and nitride layers are arranged on the surfaces of the first piston ring and the second piston ring, and the nitride layer of the outer circle surface is provided with a metastable-state amorphous carbon DLC (diamond-like carbon) coating layer. The combined type abrasion proof piston ring provided by the utility model is broadly used in a steam cylinder of an automotive engine.
Description
Technical field
The utility model relates to a kind of piston ring, particularly a kind of Combined type wear-resisting piston ring that is installed on a kind of diamond-like coating in the car combustion engine piston.
Background technique
Internal-combustion engine is as a kind of machinery powered by conventional energy, and oneself is promoted and uses in daily life widely.Because internal-combustion engine is by making fuel (such as gasoline, oil etc.) produce heat energy in the cylinder interior burning, again this heat energy directly is converted to the motor of power and heating power, therefore, the piston ring that is used for sealing, control oil and heat transfer effect just combustion motor operational efficiency and whether can critical effect be arranged stable operation.
At present, the internal-combustion engine piston ring that adopts on the market is because the needs of assembling all are made into a metal cirque with fracture.Yet in long-term using process, the fracture slit of this metal cirque can be increasing, and then can affect sealing, control oil and the heat-transfer effect of internal-combustion engine, and inner cylinder pressure is reduced, and increased gas blowby, alters oil, and amount has a strong impact on the stable of engine performance.And at present, the surface treatment mode that piston ring adopts mainly is that nitriding treatment or chromium plating are processed, high speed development along with automobile industry, the motor of high-power, high moment of torsion, high output is more designed, this is just so that become stricter to the requirement of motor auxiliary component, as the most crucial component of motor---piston ring will face more challenges.Common nitriding treatment or chromium plating processing layer can not satisfy the demands gradually, and be mainly manifested in: 1, coating hardness is low, and abrasion resistance properties is poor; 2, the friction factor of coating is large, and large to the aggressiveness of cylinder sleeve, anti-scuffing of cylinder bore can be poor, and can cause frictional loss large, and is unfavorable to energy-conserving and environment-protective.The above-mentioned technical problem so need to be resolved hurrily.
The model utility content
The purpose of this utility model is to provide a kind of Combined type wear-resisting piston ring that can improve a kind of diamond-like coating of engine sealing property, high abrasion, high resistance scuffing of cylinder bore and low friction set attribute.
The utility model is by the following technical solutions for achieving the above object:
A kind of Combined type wear-resisting piston ring of diamond-like coating, comprise and be arranged on first piston ring and the second piston ring that is used in combination in the same annular groove, be provided with the gap on first piston ring and the second piston ring, it is characterized in that: described gap and end face angle are 45 °, described first piston ring outer rim side thickness is 1/5th of interior ring side, described the second piston ring outer rim side thickness is 5 times of interior ring side, and its interior circle radius of first piston ring and the second piston ring, exradius all equate; Be provided with the desalination layer on described first piston ring and the second piston ring surface, be provided with metastable state amorphous carbon DLC coating on the nitride layer on the periphery.
The 180 ° of settings of mutually staggering of described first piston ring and the second piston ring gap.
The utlity model has following beneficial effect:
Because the utility model adopts above technological scheme, described first piston ring and the second piston ring can effectively carry out shutoff to its opened gap mutually, effectively reduced air leak amount, and owing to be provided with the metastable state amorphous carbon coating at piston ring face, the metastable state amorphous carbon belongs to the DLC material, the metastable state amorphous carbon coating has reduced the aggressiveness of piston ring to cylinder sleeve, and the anti-scuffing of cylinder bore of ring is provided, and has greatly prolonged the working life of piston ring.
Description of drawings
Fig. 1 is first piston loops composition of the present utility model;
Fig. 2 is the second piston ring structure figure of the present utility model;
Fig. 3 is first piston ring of the present utility model and the second piston ring assembled state figure.
1 is the first piston ring among the figure, and 2 is the second piston ring.
Embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, the Combined type wear-resisting piston ring of this a kind of diamond-like coating, comprise and be arranged on first piston ring 1 and the second piston ring 2 that is used in combination in the same annular groove, be provided with the gap on first piston ring 1 and the second piston ring 2, described gap and end face angle are 45 °, described first piston ring outer shroud 1 side thickness is 1/5th of interior ring side, described the second piston ring outer shroud 2 side thickness are 5 times of interior ring side, first piston ring 1 and the second piston ring 2 its interior circle radius, exradius all equates, be provided with the desalination layer on described first piston ring 1 and the second piston ring 2 surfaces, be provided with metastable state amorphous carbon DLC coating on the nitride layer on the periphery.。The symmetrical 180 ° of settings in first piston ring 1 and the second piston ring 2 gaps.
Claims (2)
1. the Combined type wear-resisting piston ring of a diamond-like coating, comprise and be arranged on first piston ring and the second piston ring that is used in combination in the same annular groove, be provided with the gap on first piston ring and the second piston ring, it is characterized in that: described gap and end face angle are 45 °, described first piston ring outer rim side thickness is 1/5th of interior ring side, described the second piston ring outer rim side thickness is 5 times of interior ring side, and its interior circle radius of first piston ring and the second piston ring, exradius all equate; Be provided with the desalination layer on described first piston ring and the second piston ring surface, be provided with metastable state amorphous carbon DLC coating on the nitride layer on the periphery.
2. the Combined type wear-resisting piston ring of a kind of diamond-like coating according to claim 1 is characterized in that: the 180 ° of settings of mutually staggering of described first piston ring and the second piston ring gap.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220305106 CN202746030U (en) | 2012-06-28 | 2012-06-28 | Combined type abrasion proof piston ring of diamond-like coating layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220305106 CN202746030U (en) | 2012-06-28 | 2012-06-28 | Combined type abrasion proof piston ring of diamond-like coating layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202746030U true CN202746030U (en) | 2013-02-20 |
Family
ID=47705436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220305106 Expired - Fee Related CN202746030U (en) | 2012-06-28 | 2012-06-28 | Combined type abrasion proof piston ring of diamond-like coating layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202746030U (en) |
-
2012
- 2012-06-28 CN CN 201220305106 patent/CN202746030U/en not_active Expired - Fee Related
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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: 20130220 Termination date: 20130628 |