CN110332056A - A kind of low oil consumption engine piston ring group of low friction and mechanism - Google Patents
A kind of low oil consumption engine piston ring group of low friction and mechanism Download PDFInfo
- Publication number
- CN110332056A CN110332056A CN201910528689.8A CN201910528689A CN110332056A CN 110332056 A CN110332056 A CN 110332056A CN 201910528689 A CN201910528689 A CN 201910528689A CN 110332056 A CN110332056 A CN 110332056A
- Authority
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- China
- Prior art keywords
- ring
- piston ring
- low
- outer circle
- oil consumption
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 7
- 230000006835 compression Effects 0.000 claims abstract description 21
- 238000007906 compression Methods 0.000 claims abstract description 21
- 150000001875 compounds Chemical class 0.000 claims abstract description 10
- 238000007790 scraping Methods 0.000 claims description 11
- 239000006071 cream Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000006396 nitration reaction Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 29
- 239000010687 lubricating oil Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 8
- 239000004744 fabric Substances 0.000 abstract description 8
- 235000015927 pasta Nutrition 0.000 abstract description 6
- 239000000314 lubricant Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 7
- 239000010721 machine oil Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000010705 motor oil Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000000306 component Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/12—Details
- F16J9/20—Rings with special cross-section; Oil-scraping rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/26—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction characterised by the use of particular materials
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The present invention provides a kind of low oil consumption engine piston ring group of low friction and mechanism, including the top compression ring, second gas ring and the compound oil ring for being mounted on piston；The outer circle side working face of the ring body of the top compression ring is inclined bucket face structure, and the long circular arc for being greater than bucket vertex of surface to outer circle side lower end of the circular arc of barrel vertex of surface to outer circle side upper end is long.The outer circle working face of top compression ring is designed to inclined bucket face structure by the present invention, bucket vertex of surface is biased to the downside of piston ring, cambered surface so more than the bucket vertex of surface of piston ring becomes larger, bucket vertex of surface cambered surface below becomes smaller, piston ring cloth pasta during uplink increases, the uniform oil film of a layer thickness is more readily formed on casing wall, improve lubricant effect of the ring group uplink in the process with cylinder sleeve, reduce the friction and wear of piston ring and cylinder sleeve, when piston ring downlink, cloth pasta reduces, so that the residual oil film on casing wall is thinner, reduces consumption of lubricating oil.
Description
Technical field
The present invention relates to technical field of internal combustion engines, and in particular to a kind of low oil consumption engine piston ring group of low friction and machine
Structure.
Background technique
Piston ring is the core component of reciprocating internal combustion engine, it and piston, cylinder wall etc. are formed together sealing mechanism, is completed
Sealing to combustion gas, lubricating oil.The effect of piston ring includes air seal, control machine oil, thermally conductive, support piston four works
With.Air seal, which refers to, does not allow the gas leakage of combustion chamber to crankcase, and gas leakage can not only make the power dropping of engine, fuel oil
Consumption rises, and machine oil can be made rotten；Control machine oil, which refers to, scrapes machine oil extra on cylinder wall when Piston volume tube downlink, on
One layer of ultra-thin oil film on cloth on casing wall again when row, guarantees the normal lubrication of cylinder and piston and ring；Thermally conductive is to pass through piston
The heat of piston is conducted to cylinder sleeve by ring, that is, plays cooling effect；Support piston refers to that piston is kept in the cylinder, preventing by piston ring
Only piston is directly contacted with cylinder wall, guarantees piston smooth movement, reduces frictional resistance, and prevent piston knock.
By twice compression ring, the oil ring with together with forms the internal-combustion engine piston ring group of mainstream at present, but the periphery of compression ring is only normal
The structure of rule, lubricant effect can not improve always, and the abrasion of piston ring and cylinder sleeve is larger.
Summary of the invention
The present invention provides a kind of low friction low oil consumption engine piston ring group, realizes the purpose of the low oil consumption of low friction.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
A kind of low oil consumption engine piston ring group of low friction, including for being mounted on piston the top compression ring, second
Road compression ring and compound oil ring:
The outer circle side working face of the ring body of the top compression ring is inclined bucket face structure, circle of barrel vertex of surface to outer circle side upper end
The circular arc that arc length is greater than bucket vertex of surface to outer circle side lower end is long.
Further, the periphery of the ring body of the second gas ring is nose type cone structure comprising is located at nose type and bores
The shoe cream room in the downward region of vertex of surface.
Further, the compound oil ring includes upper scraping blade arranged up and down and lower lacing film, and is scraped above and below for connecting
The grommet of piece.
Further, the bucket vertex of surface to outer circle side upstream ends a length of A of circular arc, under the bucket vertex of surface to outer circle side
The a length of B of the circular arc at row end, wherein the value of A:B is 1.3~3.5.
A kind of mechanism, including cylinder jacket, the piston in cylinder jacket and be sleeved on piston such as above-mentioned engine
Piston volume tube.
From the above technical scheme, the outer circle working face of top compression ring is designed to inclined bucket face structure, bucket by the present invention
Vertex of surface is biased to the downside of piston ring, and cambered surface more than the bucket vertex of surface of such piston ring becomes larger, bucket vertex of surface arc below
Face becomes smaller, and piston ring cloth pasta during uplink increases, and the uniform oil film of a layer thickness is more readily formed on casing wall, improves
Lubricant effect during ring group uplink with cylinder sleeve, reduces the friction and wear of piston ring and cylinder sleeve, when piston ring downlink,
Cloth pasta reduces, so that the residual oil film on casing wall is thinner, reduces consumption of lubricating oil.
Second gas ring uses steel nose type cone structure, and the lubricating oil storage for increasing piston ring downside is empty
Between, it prevents lubricating oil from flowing backwards, further reduced the engine oil consumption of engine.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of inventive engine Piston volume tube, shows the work with cylinder jacket and piston cooperation
Schematic diagram；
Fig. 2 is the schematic cross-section of top compression ring in the present invention；
Fig. 3 is the schematic cross-section of second gas ring in the present invention；
Fig. 4 is the schematic cross-section of compound oil ring in the present invention；
Fig. 5 is that the present invention is tested by engine rig test, the oil film thickness during piston ring uplink and downlink on casing wall
Schematic diagram.
Specific embodiment
A kind of preferred embodiment of the invention is described in detail with reference to the accompanying drawing.
As shown in Figure 1, the engine piston ring group includes the top compression ring 10 for being mounted on piston,
Two compression rings 20 and compound oil ring 30.Piston volume tube scrapes machine oil extra on cylinder wall when downlink in cylinder jacket, piston
One layer of ultra-thin oil film on cloth on casing wall again when ring group uplink, guarantees the normal lubrication of cylinder jacket and piston and piston ring.
The top compression ring 10, second gas ring 20 and compound oil ring 30 are all made of steel material, change traditional
The universal cylinder iron ring design theory of second piston ring.It fractures since steel material has higher tension and resist than cast iron quality
Intensity, using steel structure, the ring group total height that ring height can be made thinner, of the invention can accomplish 3.5mm hereinafter, with tradition
Piston volume tube compared at least reduce ring it is high by 16%, can effectively mitigate 5% or more the weight of piston component, to improve engine it is light
Quantization has remarkable result.
As described in Figure 2, the top compression ring 10 primarily serve when the engine is working air seal, control lubricating oil and
Thermally conductive effect.
The outer circle working face of the ring body of the top compression ring 10 is inclined bucket face structure, on barrel vertex of surface a to outer circle side
Hold the circular arc of b long long greater than the circular arc of bucket vertex of surface to outer circle side lower end c.Arc so more than the bucket vertex of surface of top compression ring
Face becomes larger, and bucket vertex of surface cambered surface below becomes smaller.Piston ring cloth pasta increase during uplink is elongated, is easier on casing wall
One layer of oil film thicker and in homogeneous thickness is formed, lubricant effect of the ring group uplink in the process with cylinder sleeve is improved, reduces piston
The friction and wear of ring and cylinder sleeve.And when piston ring downlink, the reduction of cloth pasta shortens, so that the residual oil film on casing wall is thinner,
Reduce consumption of lubricating oil.
In order to reduce coefficient of friction (below coefficient of friction 0.1), diamond-like is provided in the ring body of top compression ring 10
Stone coating 11 has low-friction coefficient, high abrasion characteristic, reduces the friction loss of engine, promotes the improvement of fuel oil consumption.
The circumference arc a length of A, the bucket vertex of surface a of the bucket vertex of surface a to side disc upper end b is to side disc lower end c's
The a length of B of circumference arc, wherein the value of A:B is 1.5~3.5.
As shown in figure 3, the periphery of the ring body of the second gas ring 20 is nose type cone structure, ring body is located at nose type cone
Vertex of surface d downward region is provided with shoe cream room 21.Shoe cream room is set and increases lubricating oil that piston ring is scraped from casing wall
Memory space prevents lubricating oil from flowing backwards, and further reduced the engine oil consumption of engine.
10 °~20 ° of the intracavitary angle of the shoe cream room of the shoe cream room 21, oil storage cavity area and ring sectional area are than 0.02
~0.03.
As shown in figure 4, the compound oil ring 30 includes upper scraping blade 31 arranged up and down and lower lacing film 32, and for connecting
The grommet 33 of upper and lower scraping blade.
The periphery surface of the upper scraping blade 31 and lower scraping blade 32 is provided with diamond-like coating 34, the friction of Piston volume tube
Loss 60% greatly reduces the friction loss of ring group by the diamond-like coating on doctor blade ring from oil ring.
The contact surface of the ear of the grommet 33 and the upper and lower scraping blade is provided with nitration case 35, and the abrasion of grommet is main
It is embodied in ear, so only the ear on grommet is locally equipped with nitration case, other positions both improve oil ring without nitration case
Wearability solves the problems, such as that grommet nitrogenizes brittle fracture entirely again.
The present invention also provides a kind of mechanisms 40, piston 42 including cylinder jacket 41, in cylinder jacket and are set in work
Beyond the Great Wall such as above-mentioned engine piston ring group.
The present invention is tested by engine rig test, and the oil film thickness during piston ring uplink and downlink on casing wall is such as
Shown in Fig. 5.It is thicker than prior art ring by 20% after the oil film that inventive piston ring is formed on casing wall when uplink, improve lubrication effect
Fruit effectively reduces friction and wear.Pass through piston ring frizing, residual oil film thickness of the inventive piston ring on casing wall when downlink
Degree lower than prior art ring 30%, further decreases engine oil consumption.Inventive piston ring group is compared with existing Piston volume tube, engine
Comprehensive engine oil consumption reduces by 29.7%, and the friction of motion function loss of piston component (piston and rings group) reduces 38%, engine
Comprehensive fuel oil consumption reduces by 1%.(lower dead center and top dead centre that BDC, TDC respectively represent top compression ring operation)
Embodiment described above be only preferred embodiments of the present invention will be described, not to the scope of the present invention into
Row limits, and without departing from the spirit of the design of the present invention, those of ordinary skill in the art make technical solution of the present invention
Various changes and improvements out, should fall within the scope of protection determined by the claims of the present invention.
Claims (9)
1. a kind of low oil consumption engine piston ring group of low friction, which is characterized in that including described for being mounted on piston
One of compression ring, second gas ring and compound oil ring；
The outer circle side working face of the ring body of the top compression ring is inclined bucket face structure, in barrel vertex of surface to outer circle side working face
The long circular arc for being greater than bucket vertex of surface to outer circle side working face lower end of the circular arc at end is long;
The outer circle lateral deviation bucket face of the top compression ring is equipped with the diamond-like coating of low friction.
2. the low oil consumption engine piston ring group of low friction according to claim 1, which is characterized in that the second gas ring
Ring body periphery be nose type cone structure comprising the shoe cream room in the region downward positioned at nose type conical surface vertex.
3. the low oil consumption engine piston ring group of low friction according to claim 2, which is characterized in that the chamber of the shoe cream room
Interior angle is 10 °~20 °, and oil storage cavity area and ring sectional area ratio are 0.02~0.03.
4. the low oil consumption engine piston ring group of low friction according to claim 1, which is characterized in that the compound oil ring packet
Include upper scraping blade arranged up and down and lower lacing film, and the grommet for connecting upper and lower scraping blade.
5. the low oil consumption engine piston ring group of low friction according to claim 4, which is characterized in that the upper scraping blade and under
Scraping blade surface is provided with diamond-like coating.
6. the low oil consumption engine piston ring group of low friction according to claim 4, which is characterized in that the ear of the grommet
The contact surface of the upper and lower scraping blade is provided with nitration case.
7. the low oil consumption engine piston ring group of low friction according to claim 1, which is characterized in that the bucket vertex of surface arrives
The a length of A of circular arc of outer circle side working face upstream ends, a length of B of circular arc of the bucket vertex of surface to outer circle side downstream end, wherein A:B
Value is 1.5~3.5.
8. the low oil consumption engine piston ring group of low friction according to claim 1, which is characterized in that first of the gas
Ring, second gas ring and compound oil ring are all made of steel material.
9. a kind of mechanism, which is characterized in that including cylinder jacket, the piston in cylinder jacket and be sleeved on piston as power
Benefit requires the low oil consumption engine piston ring group of any one of 1-8 low friction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910528689.8A CN110332056A (en) | 2019-06-18 | 2019-06-18 | A kind of low oil consumption engine piston ring group of low friction and mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910528689.8A CN110332056A (en) | 2019-06-18 | 2019-06-18 | A kind of low oil consumption engine piston ring group of low friction and mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110332056A true CN110332056A (en) | 2019-10-15 |
Family
ID=68141068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910528689.8A Pending CN110332056A (en) | 2019-06-18 | 2019-06-18 | A kind of low oil consumption engine piston ring group of low friction and mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110332056A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377614A (en) * | 2020-11-11 | 2021-02-19 | 马勒汽车技术（中国）有限公司 | Piston ring for engine and machining method of piston ring |
| CN112727628A (en) * | 2021-01-08 | 2021-04-30 | 广西玉柴机器股份有限公司 | Piston and piston ring composite structure |
| CN112963531A (en) * | 2021-03-17 | 2021-06-15 | 安庆帝伯格茨活塞环有限公司 | Thinned secondary piston gas ring structure and processing method thereof |
| CN115653749A (en) * | 2022-09-20 | 2023-01-31 | 上汽通用五菱汽车股份有限公司 | Crankshaft connecting rod assembly, engine and automobile |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377614A (en) * | 2020-11-11 | 2021-02-19 | 马勒汽车技术（中国）有限公司 | Piston ring for engine and machining method of piston ring |
| CN112727628A (en) * | 2021-01-08 | 2021-04-30 | 广西玉柴机器股份有限公司 | Piston and piston ring composite structure |
| CN112727628B (en) * | 2021-01-08 | 2024-05-31 | 广西玉柴机器股份有限公司 | Piston and piston ring combined structure |
| CN112963531A (en) * | 2021-03-17 | 2021-06-15 | 安庆帝伯格茨活塞环有限公司 | Thinned secondary piston gas ring structure and processing method thereof |
| CN115653749A (en) * | 2022-09-20 | 2023-01-31 | 上汽通用五菱汽车股份有限公司 | Crankshaft connecting rod assembly, engine and automobile |
| CN115653749B (en) * | 2022-09-20 | 2023-08-29 | 上汽通用五菱汽车股份有限公司 | Crankshaft connecting rod assembly, engine and automobile |
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