CN106065825A - A kind of piston component of low friction - Google Patents
A kind of piston component of low friction Download PDFInfo
- Publication number
- CN106065825A CN106065825A CN201610595537.6A CN201610595537A CN106065825A CN 106065825 A CN106065825 A CN 106065825A CN 201610595537 A CN201610595537 A CN 201610595537A CN 106065825 A CN106065825 A CN 106065825A
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- CN
- China
- Prior art keywords
- piston
- angle
- low friction
- oil
- piston component
- 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.)
- Withdrawn
Links
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 239000004744 fabric Substances 0.000 claims abstract description 16
- 230000007704 transition Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 38
- 239000000295 fuel oil Substances 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 238000005240 physical vapour deposition Methods 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 5
- 229910003481 amorphous carbon Inorganic materials 0.000 description 3
- 239000010721 machine oil Substances 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910000635 Spelter Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- AUZONCFQVSMFAP-UHFFFAOYSA-N disulfiram Chemical compound CCN(CC)C(=S)SSC(=S)N(CC)CC AUZONCFQVSMFAP-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/10—Pistons having surface coverings
-
- 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
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/02—Bearing surfaces
-
- 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
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/10—Connection to driving members
- F16J1/14—Connection to driving members with connecting-rods, i.e. pivotal connections
- F16J1/16—Connection to driving members with connecting-rods, i.e. pivotal connections with gudgeon-pin; Gudgeon-pins
-
- 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
- F16J9/12—Details
- F16J9/20—Rings with special cross-section; Oil-scraping rings
- F16J9/206—One-piece oil-scraping rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The piston component of a kind of low friction, relates to the piston of automobile engine.By being respectively provided with cloth oil angle and frizing angle on the parallel upper plane at oil ring ring body, lower plane, preferably complete cloth oil and frizing, make oil consumption be controlled better；Coating is set in piston skirt, decreases piston wear, reduce piston friction loss, by reducing oil ring tension force, reduce the friction loss of oil ring；By after piston pin outer surface uses DLC coating, hardness significantly promotes, and reduces coefficient of friction, reduces fuel oil consumption.
Description
Technical field
The present invention relates to the piston of automobile engine, particularly to the piston component of a kind of low friction.
Background technology
In current automobile engine industry, piston component includes piston and piston pin with piston ring, wherein piston ring
Including compression ring and oil ring.The position producing friction is all to occur at movement parts outer surface.
Piston skirt is provided with equadag coating, molybdenum bisuphide coating, the combination of any one or several in spelter coating, coating
Purpose increase lubrication exactly, reduce abrasion during engine start.
Piston pin is the sole component connecting piston and connecting rod, and it can pass through key seat and work the explosion pressure on piston
Plug pin passes to connecting rod, when motion, will necessarily there is fretting wear.Wrist pin materials is steel, and forging forms, outer surface machine
Adding and forming, machining accuracy is very high.All the time, the process of surface treatment as piston pin of vehicle, mainly to improve wearability
And for the purpose of the anticol property, use the relatively low plating of price, conversion film, salt bath process, and the technique such as oxidation processes；From 20 generation
Record the later stage nineties, begin with Nitrizing Treatment, it is possible to meet the requirement of pin surface hardness, intensity and toughness.At present
In order to meet the fuel oil regulation constantly tightened up and emission regulation demands, and also to tackle the diversified demand of fuel oil, and
With the rise of fuel price, on the premise of vehicle fuel index is paid attention in by user again, fuel oil regulation and emission regulation demands
Can be increasingly stricter, reduce frictional force, play a role in realizing regulation.
Content of the invention
The deficiency existing for prior art, the present invention provides the piston component of a kind of low friction, its reasonable in design, structure
Simply, it is simple to safeguard.
The technical solution adopted in the present invention is: the piston component of a kind of low friction, including with the work of head and skirt section
Plug and piston pin, be additionally provided with oil ring ring body in the skirt section of piston, it is characterised in that oil ring ring body includes with cloth oil angle and scrapes
The upper plane at oil angle, lower plane and the connector with spill port being arranged between said two devices.
As a kind of preferred embodiment at the cloth oil angle of the present invention, the upper topside of upper plane and the first camber line form First Transition
Fillet, the first camber line end connects step curve, and the ladder angle on step curve is Bu Youjiao；
As a kind of preferred embodiment at the frizing angle of the present invention, the end of step curve connects the second camber line formation nose-shaped angle and is
For frizing angle, the second camber line connects the 3rd camber line and forms the second transition angle.
As the further preferred embodiment at the ladder angle of the present invention, described ladder angle is 90 degree.
As the further preferred embodiment at the frizing angle of the present invention, described nose-shaped angle is less than 90 degree.
As cloth oil angle and the another kind of preferred embodiment at frizing angle of the present invention, the cloth oil angle in upper plane and lower plane with
Frizing corner structure is identical.
As a kind of preferred embodiment of plane in the present invention and lower plane, the rough surface of described upper plane and lower plane
Degree should be less than 1 micron.
As a kind of preferred embodiment in inventive piston skirt section, described skirt section is outside equipped with PVD coating.
As a kind of preferred embodiment of spill port of the present invention, described spill port is strip hole.
As a kind of preferred embodiment of inventive piston pin, described piston pin is outside equipped with DLC coating.
The invention have the advantage that the piston component of this low friction, by the parallel upper plane at oil ring ring body, lower flat
It is respectively provided with cloth oil angle and frizing angle on face, preferably complete cloth oil and frizing, make oil consumption be controlled better；
Coating is set in piston skirt, decreases piston wear, reduce piston friction loss, by reducing oil ring tension force, reduce oil ring
Friction loss；By after piston pin outer surface uses DLC coating, hardness significantly promotes, and reduces coefficient of friction, reduces
Fuel oil consumption.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing using is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only some enforcements of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, also can obtain according to these accompanying drawings
Other accompanying drawing.
Fig. 1 is embodiment of the present invention piston assembly structure schematic diagram；
Fig. 2 is embodiment of the present invention piston skirt structural representation；
Fig. 3 is oil ring ring body structurc schematic diagram in the embodiment of the present invention；
Fig. 4 is the close-up schematic view of Fig. 3 of the present invention；
Fig. 5 is the sectional view of piston in the embodiment of the present invention；
In figure, sequence number is described as follows: 1 piston, 2 first gas rings, 3 second gas rings, 4 oil ring ring bodies, 4-1 semicircular arc groove, 4-2 bullet
Spring, 4-3 spill port, 4-4 opened gap, the upper plane of 4-5,4-6 lower plane, 4-7 connector, 4-8 upper topside, 4-9 the first camber line,
4-10 step curve, 4-11 the second camber line, 4-12 the 3rd camber line, 4-13 First Transition fillet, 4-14 ladder angle, 4-15 nose-shaped
Angle, 4-16 the second knuckle, 5 piston pins, 5-1 piston pin body, 5-2DLC coating, 6 skirt sections.
Detailed description of the invention
Enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from understandable, 1 ~ 5 is real with concrete below in conjunction with the accompanying drawings
The present invention is further detailed explanation to execute mode.
Embodiment 1:
The piston component of the low friction in the present embodiment, as depicted in figs. 1 and 2, including with head and skirt section piston 1 and live
Plug pin 5, is additionally provided with first gas ring the 2nd, second gas ring 3 and oil ring ring body 4 in the skirt section 6 of piston.Its first gas ring 2 is bucket face square
Shape ring, i.e. outer face are cartridge type.Carry out PVD process after the nitridation of outer face, add intensity, improve wearability.Second gas ring 3
For taper-face ring, outer end is trapezoidal, outer face phosphorating treatment, and conical surface wedge angle frizing effect is good.Oil ring ring body 4 uses cast iron materials,
Spring 4-2 uses low-tension spring, in the case that the length that ensure that oil ring support spring is constant, increases the length of pitch, thus
Reduce the elastic force of spring 4-2 own.Elastic force reduces, and the friction loss with cylinder body during ring work just decreases.
Oil ring ring body 4 uses casting, and oil ring ring body 4 itself does not exist elastic force, and the elastic force of oil ring ring body 4 comes from
Spring 4-2, as it is shown on figure 3, spring 4-2 is arranged in semicircular arc groove 4-1, spring 4-2 uses variable-section variable pitch pattern, bullet
The docking of spring 4-2 two ends is connect by tethering.After there is semicircular arc groove 4-1, the rigidity of ring weakens, more preferable to the tracing ability of cylinder body.Work
When making, opened gap 4-4, do not allow the imagination that there is Guan Bi.
The oil ring ring body 4 of the present embodiment includes upper plane 4-5 being parallel to each other with cloth oil angle and frizing angle, lower plane
4-6 and be arranged at plane 4-5, the lower plane 4-6 connector 4-7 with spill port 4-3 therebetween.
Embodiment 2:
Oil ring ring body 4 in the present embodiment, using ladder angle 4-14 as cloth oil angle, sets using nose-shaped angle 4-15 respectively as frizing angle
Put in upper plane 4-5 being parallel to each other and lower plane 4-6, as shown in Figure 4, wherein, the table of upper plane 4-5 and lower plane 4-6
Surface roughness Ra should be less than 1 micron.Using strip hole as spill port 4-3 on connector 4-7, its machine adds simply, is conducive to back
Oil, the present embodiment arranges 8 spill port 4-3.Cloth oil angle concrete structure in the present embodiment is as follows:
The upper topside 4-8 of upper plane 4-5 and the first camber line 4-8 forms and can reduce the First Transition fillet 4-13 that stress is concentrated,
First camber line 4-9 end connects step curve 4-10, and the ladder angle 4-14 on step curve 4-10 is 90 degree, master when up
If completing cloth oil, in angle, do not have machine oil.
Frizing angle concrete structure in the present embodiment is as follows:
The end of step curve 4-10 connects the second camber line 4-11 and forms nose-shaped angle 4-15, and the angle of nose-shaped angle 4-15 is less than
90 °, mainly when descending, due to the existence of nose-shaped angle 4-15, can preferably complete frizing, can also store in ditch and scrape off
Machine oil, prevent machine oil from upwards altering.Second camber line 4-11 connects the 3rd camber line 4-12 and forms the second knuckle 4-16.
It is positioned at plane 4-5 identical with cloth oil corner structure with the frizing angle on lower plane 4-6, upper and lower twice scraping angle
Can preferably complete cloth oil and frizing.In order to improve the wearability of outer face, also use nitridation in the outer face of oil ring ring body 3
Process.
Embodiment 3:
The present embodiment is with the difference of embodiment 1 and embodiment 2: be outside equipped with PVD coating in skirt section 6.At piston pin body
5-1 is outside equipped with DLC coating 5-2, as shown in Figure 3.
The shape of the piston pin 5 in the present embodiment is cylindrical profile, and endoporus is extruded by two ends, and with median plane is
Symmetrical structure, is molded by forging, and inner hole precision does not has special custom to require, piston pin outer surface precision requires very high, passes through machine
Add and just can complete.Outer surface arranges DLC coating 5-2, the preparation method of DLC coating for use physical vapor deposition (PVD) and
Outside chemical vapor deposition (CVD) method spraying piston pin body 5-1.Piston pin 5 surface is exactly in PVD method, utilizes negative electrode
The formation of arc ions metallikon is not hydrogeneous but hardness is close to the tetrahedral amorphous carbon coating of diamond, must utilize sputtering method shape
Become hydrogeneous hydrogenated amorphous carbon coating, and amorphous carbon coating.
Although the foregoing describing the detailed description of the invention of the present invention, but the those skilled in the art in this area should managing
Solving, these are merely illustrative of, and can make various changes or modifications to these embodiments, without departing from the principle of the present invention
And essence.The scope of the present invention is only limited by the claims that follow.
Claims (9)
1. a piston component for low friction, including with the piston in head and skirt section and piston pin, also set in the skirt section of piston
It is equipped with oil ring ring body, it is characterised in that oil ring ring body includes with cloth oil angle and upper plane, the lower plane at frizing angle and is arranged at
The connector with spill port between said two devices.
2. the piston component of low friction as claimed in claim 1, it is characterised in that the upper topside of upper plane and the first arc line shaped
Becoming First Transition fillet, the first camber line end connects step curve, and the ladder angle on step curve is Bu Youjiao；
The end of step curve connects the second camber line formation nose-shaped angle and is frizing angle, and the second camber line connects the 3rd camber line and formed
Second transition angle.
3. the piston component of low friction as claimed in claim 2, it is characterised in that described ladder angle is 90 degree.
4. the piston component of low friction as claimed in claim 2, it is characterised in that described nose-shaped angle is less than 90 degree.
5. the piston component of low friction as claimed in claim 1, it is characterised in that cloth oil angle in upper plane and lower plane and
Frizing corner structure is identical.
6. the piston component of the low friction as described in claim 2～5 any claim, it is characterised in that described is upper flat
Face should be less than 1 micron with the surface roughness of lower plane.
7. the piston component of low friction as claimed in claim 1, it is characterised in that described skirt section is outside equipped with PVD coating.
8. the piston component of low friction as claimed in claim 1, it is characterised in that described spill port is strip hole.
9. the piston component of low friction as claimed in claim 1, it is characterised in that described piston pin is outside equipped with DLC and applies
Layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610595537.6A CN106065825A (en) | 2016-07-27 | 2016-07-27 | A kind of piston component of low friction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610595537.6A CN106065825A (en) | 2016-07-27 | 2016-07-27 | A kind of piston component of low friction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106065825A true CN106065825A (en) | 2016-11-02 |
Family
ID=57206681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610595537.6A Withdrawn CN106065825A (en) | 2016-07-27 | 2016-07-27 | A kind of piston component of low friction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106065825A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2206776C2 (en) * | 2001-07-04 | 2003-06-20 | Открытое акционерное общество "Заволжский моторный завод" | Piston for internal combustion engine |
| CN201486681U (en) * | 2009-05-22 | 2010-05-26 | 奇瑞汽车股份有限公司 | Heavy diesel engine piston ring set |
| CN102939482A (en) * | 2010-06-04 | 2013-02-20 | 日本活塞环株式会社 | Oil ring for internal combustion engine |
| CN204692563U (en) * | 2015-04-27 | 2015-10-07 | 仪征亚新科双环活塞环有限公司 | A kind of scraper ring |
| CN205977439U (en) * | 2016-07-27 | 2017-02-22 | 华晨汽车集团控股有限公司 | Low fricative piston assembly |
-
2016
- 2016-07-27 CN CN201610595537.6A patent/CN106065825A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2206776C2 (en) * | 2001-07-04 | 2003-06-20 | Открытое акционерное общество "Заволжский моторный завод" | Piston for internal combustion engine |
| CN201486681U (en) * | 2009-05-22 | 2010-05-26 | 奇瑞汽车股份有限公司 | Heavy diesel engine piston ring set |
| CN102939482A (en) * | 2010-06-04 | 2013-02-20 | 日本活塞环株式会社 | Oil ring for internal combustion engine |
| CN204692563U (en) * | 2015-04-27 | 2015-10-07 | 仪征亚新科双环活塞环有限公司 | A kind of scraper ring |
| CN205977439U (en) * | 2016-07-27 | 2017-02-22 | 华晨汽车集团控股有限公司 | Low fricative piston assembly |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20161102 |
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| WW01 | Invention patent application withdrawn after publication |