CN204511693U - A kind of abrasion-proof piston ring being applicable to cylinder of internal-combustion engine - Google Patents
A kind of abrasion-proof piston ring being applicable to cylinder of internal-combustion engine Download PDFInfo
- Publication number
- CN204511693U CN204511693U CN201420834670.9U CN201420834670U CN204511693U CN 204511693 U CN204511693 U CN 204511693U CN 201420834670 U CN201420834670 U CN 201420834670U CN 204511693 U CN204511693 U CN 204511693U
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- Prior art keywords
- outer shroud
- ring
- piston ring
- cylinder
- abrasion
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- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model provides a kind of abrasion-proof piston ring being applicable to cylinder of internal-combustion engine, its purport be to provide a kind of can improve piston ring counterpressure ability to bear and the effective piston ring of frizing.Comprise ring body and opening (6), it is characterized in that: ring body comprise connect as one inner ring (1), outer shroud (2) and inclined-plane (11), inner ring (1) thickness is greater than outer shroud (2) thickness, inner ring (1) is connected by inclined-plane (11) with outer shroud (2), outer shroud (2) periphery is disposed with nitride layer (3), chromium coating (4), spongy chromium plating layer (5).
Description
Technical field
The utility model relates to the piston ring field of cylinder of internal-combustion engine, specifically provides a kind of abrasion-proof piston ring being applicable to cylinder of internal-combustion engine.
Background technique
Hyundai Motor requires that motor has higher power, lower fuel oil consumption and longer working life, and reduces mechanical transport further to the burden of environment, and petrol engine and diesel engine manufacturers being are all constantly are being researched and developed for pursuing this target for this reason.For adapting to this engine technology developments trend, components supplying business conducts in-depth research in petrol engine and piston ring of diesel engine surface treatment.
The friction power loss of motor can produce material impact to fuel consume.And improve constantly due to the combustion efficiency of present engine, the impact of engine friction power consumption on oil consumption highlights day by day.The main source of Modern Engine friction power loss is piston assembly, comprises piston and piston ring, and piston ring principal element especially.Under the extreme condition such as motor initial stage running in stage and the motor High Temperature High Pressure when lighting a fire, lubricant film between piston ring and cylinder sleeve friction surface is difficult to effective foundation, along with improving constantly of engine flare pressure, lubricant film between piston ring-cylinder liner friction pair is set up and is become more and more difficulty, in the moment of engine operation initial stage and igniting, oil film even cannot be set up, and occurs dry friction, piston ring-cylinder liner friction pair is caused to lose efficacy, motor cisco unity malfunction.
Piston ring is stuck on piston, and the larger sealing of back pressure is better, and the volume of the size of back pressure and back pressure cavity is proportional, under the prerequisite that width is certain with area and piston ring inner ring width proportional.But the sectional shape of existing piston ring is rectangle, namely outer shroud is consistent with the width of inner ring.The back pressure produced during piston runs is less, and less back pressure gives pressure that piston ring and cylinder sleeve fit also can be less, and therefore, the sealing effect of rectangle piston ring to cylinder sleeve of prior art cross-sectional shapes is limited.
Summary of the invention
The purpose of this utility model be to provide a kind of can improve piston ring counterpressure ability to bear and the effective a kind of abrasion-proof piston ring being applicable to cylinder of internal-combustion engine of frizing.
The utility model is by the following technical solutions to achieve these goals:
A kind of abrasion-proof piston ring being applicable to cylinder of internal-combustion engine, comprise ring body and opening, ring body comprises the inner ring, outer shroud and the inclined-plane that connect as one, inner ring thicknesses is greater than outer ring thickness, inner ring is connected by inclined-plane with outer shroud, outer shroud periphery is disposed with nitride layer, chromium coating, spongy chromium plating layer.
In technique scheme, inner ring thicknesses is 1.5 times of the thickness of outer shroud.
In technique scheme, nitride thickness is 10 ~ 100 μm.
In technique scheme, the thickness of described chromium coating is at 20 ~ 200 μm.
In technique scheme, the surface hardness of nitride layer is greater than 900HV.
In technique scheme, the angle of described opening and end face is 30 °-60 °.
In technique scheme, the angle of the end face of inclined-plane and outer shroud is 135 °-145 °.
Because the utility model adopts technique scheme, therefore possess following beneficial effect:
One, inner ring thicknesses of the present utility model is greater than outer ring thickness, and piston ring cross section is dress in " convex ", and moving back and forth at piston ring is, connects outer shroud and the upper lower inclined plane of inner ring and the combination of inner ring and piston ring can be made can to bear larger back pressure.
Two, the utility model adopts spongy chromium plating layer to make piston ring lubrication better effects if, and spongy chromium plating is a kind of special shape of wear-resistant chromium plating, and the surface that the obvious difference of it and general chromium plating is its chromium coating produces netted rill or the space of point-like.Object is in use store a certain amount of lubricant oil, to improve friction condition, reduces friction factor, reduces the contact of direct metal covering, therefore improves wear resistance.
Accompanying drawing explanation
Fig. 1 is piston ring sectional view of the present utility model.
Fig. 2 is plan view of the present utility model.
Fig. 3 is stereogram of the present utility model.
Embodiment
Below the utility model is described further:
Embodiment 1
A kind of abrasion-proof piston ring being applicable to cylinder of internal-combustion engine, comprise ring body and opening 6, ring body comprises the inner ring 1, outer shroud 2 and the inclined-plane 11 that connect as one, inner ring 1 thickness is greater than outer shroud 2 thickness, inner ring 1 is connected by inclined-plane 11 with outer shroud 2, outer shroud 2 periphery sets gradually nitride layer 3, chromium coating 4, spongy chromium plating layer 5 that useful plasma nitrided mode is formed.
Embodiment 2
A kind of abrasion-proof piston ring being applicable to cylinder of internal-combustion engine, comprise ring body and opening 6, ring body comprises the inner ring 1, outer shroud 2 and the inclined-plane 11 that connect as one, inner ring 1 thickness is greater than outer shroud 2 thickness, inner ring 1 is connected by inclined-plane 11 with outer shroud 2, outer shroud 2 periphery is disposed with nitride layer 3, chromium coating 4, spongy chromium plating layer 5.Inner ring 1 thickness is 1.5 times of the thickness of outer shroud 2.
Embodiment 3
A kind of abrasion-proof piston ring being applicable to cylinder of internal-combustion engine, comprise ring body and opening 6, ring body comprises the inner ring 1, outer shroud 2 and the inclined-plane 11 that connect as one, inner ring 1 thickness is greater than outer shroud 2 thickness, inner ring 1 is connected by inclined-plane 11 with outer shroud 2, outer shroud 2 periphery is disposed with nitride layer 3, chromium coating 4, spongy chromium plating layer 5.Inner ring 1 thickness is 1.5 times of the thickness of outer shroud 2.Nitride layer 3 thickness is 10 ~ 100 μm.The surface hardness of nitride layer 3 is greater than 900HV.
Embodiment 3
A kind of abrasion-proof piston ring being applicable to cylinder of internal-combustion engine, comprise ring body and opening 6, ring body comprises the inner ring 1, outer shroud 2 and the inclined-plane 11 that connect as one, inner ring 1 thickness is greater than outer shroud 2 thickness, inner ring 1 is connected by inclined-plane 11 with outer shroud 2, outer shroud 2 periphery is disposed with nitride layer 3, chromium coating 4, spongy chromium plating layer 5.The thickness of described chromium coating 4 is at 20 ~ 200 μm.
Embodiment 4
A kind of abrasion-proof piston ring being applicable to cylinder of internal-combustion engine, comprise ring body and opening 6, ring body comprises the inner ring 1, outer shroud 2 and the inclined-plane 11 that connect as one, inner ring 1 thickness is greater than outer shroud 2 thickness, inner ring 1 is connected by inclined-plane 11 with outer shroud 2, outer shroud 2 periphery is disposed with nitride layer 3, chromium coating 4, spongy chromium plating layer 5.Described opening 6 is 30 °-60 ° with the angle of end face.The angle of the end face of inclined-plane and outer shroud is 135 °-145 °.
Claims (7)
1. one kind is applicable to the abrasion-proof piston ring of cylinder of internal-combustion engine, comprise ring body and opening (6), it is characterized in that: ring body comprise connect as one inner ring (1), outer shroud (2) and inclined-plane (11), inner ring (1) thickness is greater than outer shroud (2) thickness, inner ring (1) is connected by inclined-plane (11) with outer shroud (2), outer shroud (2) periphery is disposed with nitride layer (3), chromium coating (4), spongy chromium plating layer (5).
2. a kind of abrasion-proof piston ring being applicable to cylinder of internal-combustion engine according to claim 1, is characterized in that: inner ring (1) thickness is 1.5 times of the thickness of outer shroud (2).
3. a kind of abrasion-proof piston ring being applicable to cylinder of internal-combustion engine according to claim 1, is characterized in that: nitride layer (3) thickness is 10 ~ 100 μm.
4. a kind of abrasion-proof piston ring being applicable to cylinder of internal-combustion engine according to claim 1, is characterized in that: the thickness of described chromium coating (4) is at 20 ~ 200 μm.
5. a kind of abrasion-proof piston ring being applicable to cylinder of internal-combustion engine according to claim 3, is characterized in that: the surface hardness of nitride layer (3) is greater than 900HV.
6. a kind of abrasion-proof piston ring being applicable to cylinder of internal-combustion engine according to claim 1, is characterized in that: described opening (6) is 30 °-60 ° with the angle of end face.
7. a kind of abrasion-proof piston ring being applicable to cylinder of internal-combustion engine according to claim 1, is characterized in that: the angle of the end face of inclined-plane and outer shroud is 135 °-145 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420834670.9U CN204511693U (en) | 2014-12-25 | 2014-12-25 | A kind of abrasion-proof piston ring being applicable to cylinder of internal-combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420834670.9U CN204511693U (en) | 2014-12-25 | 2014-12-25 | A kind of abrasion-proof piston ring being applicable to cylinder of internal-combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204511693U true CN204511693U (en) | 2015-07-29 |
Family
ID=53709679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420834670.9U Expired - Fee Related CN204511693U (en) | 2014-12-25 | 2014-12-25 | A kind of abrasion-proof piston ring being applicable to cylinder of internal-combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204511693U (en) |
-
2014
- 2014-12-25 CN CN201420834670.9U patent/CN204511693U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20151225 |
|
| EXPY | Termination of patent right or utility model |