CN106089484A - Piston monocycle and containing the gasoline engine piston of this piston monocycle, cylinder - Google Patents
Piston monocycle and containing the gasoline engine piston of this piston monocycle, cylinder Download PDFInfo
- Publication number
- CN106089484A CN106089484A CN201610624863.5A CN201610624863A CN106089484A CN 106089484 A CN106089484 A CN 106089484A CN 201610624863 A CN201610624863 A CN 201610624863A CN 106089484 A CN106089484 A CN 106089484A
- Authority
- CN
- China
- Prior art keywords
- piston ring
- piston
- monocycle
- face
- cylinder
- 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
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
- 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
- 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
- F16J9/24—Members preventing rotation of rings in grooves
Abstract
The invention discloses a kind of piston monocycle and containing the gasoline engine piston of this piston monocycle, cylinder, this piston monocycle includes piston ring body, described piston ring body has the piston ring back in cylinder, the piston ring face in drum type, the piston ring lower surface in plane and the piston ring upper surface in inverted cone shape, forms angle between described piston ring upper surface and piston ring lower surface；Having an axial cut-outs in described piston ring body, this axial gap bottom is straight cut, and axial cut-outs top is curved incision.This gasoline engine piston contains aforementioned piston monocycle；This cylinder contains aforementioned gasoline engine piston.This invention is positioned on piston body to realize single-ring seal, good seal performance by alignment pin, and reliable and stable, processing technology is easy.
Description
Technical field
The present invention relates to a kind of piston monocycle and containing the gasoline engine piston of this piston monocycle, cylinder, belong to power
Field of mechanical technique.
Background technology
Piston ring is the sealing member for gas between piston and cylinder body and lubricating oil, if sealing bad, may make
Become gas to scurry into crankcase float chamber gas and scurry into combustor, thus reduce the efficiency of electromotor.Generally internal combustion engine twice
Or three road there is the monocycle of otch coordinate with cylinder body, piston and seal, owing to each ring is respectively provided with otch, in order to reduce gas leakage,
Allow the otch of ring arrange in the hoop phase place that staggers when engine assembly.Though use multiple tracks ring to strengthen sealing, but between ring and ring
Still suffer from the situation that otch has been altered, particularly in electromotor actual motion, when each rings cut occurring in axial component overlap,
Gas leak phenomenon is particularly evident.
Summary of the invention
For above-mentioned weak point of the prior art, it is desirable to provide a kind of piston monocycle, its simple in construction, logical
Crossing alignment pin and be positioned on piston body to realize single-ring seal, good seal performance, reliable and stable, processing technology is easy.
To achieve these goals, technical scheme:
A kind of piston monocycle, it includes piston ring body, and described piston ring body has in table in the piston ring of cylinder
Face, the piston ring face in drum type, the piston ring lower surface in plane and the piston ring upper surface in inverted cone shape, described piston
Angle is formed between ring upper surface and piston ring lower surface；There is an axial cut-outs, this axial gap in described piston ring body
Bottom is straight cut, and axial cut-outs top is curved incision.
Further, the angle formed between described piston ring upper surface and piston ring lower surface is 7 °.
Further, described piston ring face has between lower surface with described piston ring upper surface, piston ring respectively
First Transition chamfering；There is between straight cut and the curved incision of axial cut-outs of described axial cut-outs the second transition chamfering.
Further, described piston ring face has antiwear heat resisting coating.
Further, in described piston ring upper surface, piston ring lower surface, piston ring face and First Transition chamfering all
Having grinding layer, its surface roughness requirements is not more than 0.4.
Present invention also offers a kind of gasoline engine piston, its simple in construction, it is achieved single-ring seal, stability and sealing
Property is good, and technical scheme is:
A kind of gasoline engine piston containing aforementioned piston monocycle, it includes piston body and circumference is positioned at this piston body
On piston ring groove, this piston ring groove is combined with described piston ring body, described piston ring groove have with under described piston ring
The annular groove upper surface matched with described piston ring upper surface in the annular groove lower surface that end face matches；The footpath of described piston ring groove
To width more than the radial width of described piston ring body, make, between piston ring groove and described piston ring body, there is gap；?
Between described annular groove upper surface and described curved incision, interference fit has alignment pin.
Further, described alignment pin is cylindrical, and its radius is less than the radius of described curved incision.
Present invention also offers a kind of cylinder, it includes the aforementioned gasoline engine piston containing piston monocycle, stable
Property is good.
Beneficial effects of the present invention: be matched with in the piston ring groove of piston body by piston monocycle, is set on piston monocycle
Put straight cut and curved incision, and pass through alignment pin by piston monocycle in interference fit with in piston ring groove, when top land gas
Pressure is relatively big or two stroke engine exists bent axle loading pressure more than in the case of top land gas pressure, part gas
Body is entered in gap by the end face gap between piston monocycle and piston ring groove, and piston monocycle is produced outward radial force,
Make the effect axially gas in cylinder body sealed.It addition, piston monocycle is because being formed under outward radial force effect
While air seal, between alignment pin with piston monocycle, formation is sealed and coordinate so that this alignment pin will be on piston monocycle
Otch carry out axial seal.
Generally speaking, present configuration is simple, can form the effective single-ring seal of Stability Analysis of Structures.
Accompanying drawing explanation
Fig. 1 is the structural representation sketch of the present invention；
Fig. 2 is the structural representation sketch of piston monocycle in the present invention；
Fig. 3 is piston monocycle incision site structure diagram in Fig. 2；
Fig. 4 is the structural representation sketch of piston ring groove in Fig. 1；
Fig. 5 is to coordinate simplified schematic diagram between piston body with piston monocycle in Fig. 1；
Fig. 6 is to coordinate simplified schematic diagram between piston monocycle and alignment pin in Fig. 1.
Detailed description of the invention
The present invention is further described below in conjunction with specific embodiment and accompanying drawing.
A kind of piston monocycle as described in Fig. 1-Fig. 6, it includes piston ring body 1, and this piston ring body 1 has in cylinder
Piston ring back 15, piston ring face 12, the piston ring lower surface 13 in plane and the work in inverted cone shape in drum type
Plug ring upper surface 11, forms angle between this piston ring upper surface 11 and piston ring lower surface 13；One is had in piston ring body 1
Axial cut-outs 10, this axial gap 10 bottom is straight cut 103, and axial cut-outs 10 top is curved incision 101.
Specifically, piston ring back 15 is cylinder；Piston ring face 12 is drum type, it may also be said to for arc annulus
Face；Piston ring lower surface 13 is plane；Piston ring upper surface 11 is the taper seat of inverted cone shape, in this example, and this piston ring upper surface
The angle formed between 11 and piston ring lower surface 13 is 7 °, and in actual application, this angle can have certain deviation.
Piston ring face 12 respectively and has First Transition chamfering between piston ring upper surface 11, piston ring lower surface 13
14；Between straight cut 103 and the curved incision 101 of axial cut-outs 10 of axial cut-outs 10, there is the second transition chamfering 102.Its
In, piston ring face 12 has antiwear heat resisting coating, to strengthen wearability and the heat conductivity of this work surface.Piston ring upper end
It is respectively provided with grinding layer, its surface roughness in face 11, piston ring lower surface 13, piston ring face 12 and First Transition chamfering 14
Require to be not more than 0.4, to strengthen sealing effectiveness.
Present invention simultaneously discloses a kind of gasoline engine piston containing aforementioned piston monocycle, its include piston body 2 and
Circumference is positioned at the piston ring groove 20 on this piston body 2, and this piston ring groove 20 is combined with piston ring body 1, this piston ring groove 20
There is the annular groove upper surface matched with piston ring upper surface 11 in the annular groove lower surface 202 matched with piston ring lower surface 13
201；The radial width of piston ring groove 20 more than the radial width of piston ring body 1, make piston ring groove 20 and piston ring body 1 it
Between there is gap 200；Between annular groove upper surface 201 and curved incision 101, interference fit has alignment pin 3.
Piston ring body 1 is assemblied in piston ring groove 20, and tight axially through annular groove upper surface 201, annular groove lower surface 202
Close fit, seals two ends gas, and transmits top land gas heat by piston ring body 1, at radial direction and piston
Annular groove 20 forms annular gap 200, carries out the closeest by leaking into the gas in this gap 200 to the active force of piston ring body 1
Seal, then piston ring body 1 is positioned by alignment pin 3 by circumference, and joined by the curved incision 101 with piston ring body 1
Close thus realize axial cut-outs 10 is sealed.In this such as Fig. 1, this alignment pin 3 is cylindrical, and its radius is cut less than arc
The radius of mouth 101.
Piston ring groove 20 and the contact site of piston ring body 1, such as annular groove upper surface 201, annular groove lower surface 202 is same
The roughness requirements identical with piston ring body 1 should be met, to strengthen sealing effectiveness.
When top land gas pressure is bigger, piston ring lower surface 13 and annular groove lower surface 202 are in downward gas pressure
Closely cooperating under power effect, axially and radially sealing gas, owing to piston ring body 11 moves downward, gas may
By in the entrance gap, gap 200 between piston ring upper surface 11 and annular groove upper surface 201, and piston ring body 1 is acted on
Produce outward radial force, therefore axially reach effect that gas is sealed.
For two stroke engine, there is the bent axle loading pressure situation more than top land gas pressure, at this
In the case of Zhong, piston ring body 1 moves to upper surface under gas pressure effect, piston ring upper surface 11 and annular groove upper surface
201 closely cooperate, and are axially and radially sealing gas equally, meanwhile, gas may by piston ring lower surface 13 with
Entrance gap, gap 200 between annular groove lower surface 202, and piston ring body 1 effect is produced outward radial force, equally at axle
To reaching effect that gas is sealed.
The present invention finally also discloses a kind of cylinder, and it includes the aforementioned gasoline engine piston containing piston monocycle.
The technical scheme provided the embodiment of the present invention above is described in detail, specific case used herein
Principle and embodiment to the embodiment of the present invention are set forth, and the explanation of above example is only applicable to help to understand this
The principle of inventive embodiments；Simultaneously for one of ordinary skill in the art, according to the embodiment of the present invention, in specific embodiment party
All will change in formula and range of application, in sum, this specification content should not be construed as limitation of the present invention.
Claims (8)
1. a piston monocycle, includes piston ring body (1), it is characterised in that: described piston ring body (1) has in cylinder
Piston ring back (15), the piston ring face (12) in drum type, the piston ring lower surface (13) in plane and in back taper
The piston ring upper surface (11) of shape, forms angle between described piston ring upper surface (11) and piston ring lower surface (13)；Described
Having an axial cut-outs (10) in piston ring body (1), this axial gap (10) bottom is straight cut (103), axial cut-outs
(10) top is curved incision (101).
Piston monocycle the most according to claim 1, it is characterised in that: described piston ring upper surface (11) and piston ring lower end
The angle formed between face (13) is 7 °.
Piston monocycle the most according to claim 1, it is characterised in that: described piston ring face (12) respectively with described work
Between plug ring upper surface (11), piston ring lower surface (13), there is First Transition chamfering (14)；Described axial cut-outs (10) straight
There is between the curved incision (101) of otch (103) and axial cut-outs (10) the second transition chamfering (102).
Piston monocycle the most according to claim 1, it is characterised in that: have wear-resisting resistance on described piston ring face (12)
Hot-dip coating.
Piston monocycle the most according to claim 3, it is characterised in that: described piston ring upper surface (11), piston ring lower end
Being respectively provided with grinding layer in face (13), piston ring face (12) and First Transition chamfering (14), its surface roughness requirements is little
In 0.4.
6. containing the gasoline engine piston of described piston monocycle arbitrary just like claim 1-5, include piston body (2) and
Circumference is positioned at the piston ring groove (20) on this piston body (2), and this piston ring groove (20) is combined with described piston ring body (1),
It is characterized in that: described piston ring groove (20) have match with described piston ring lower surface (13) annular groove lower surface (202),
The annular groove upper surface (202) matched with described piston ring upper surface (11)；The radial width of described piston ring groove (20) is more than
The radial width of described piston ring body (1), makes have gap between piston ring groove (20) and described piston ring body (1)
(200)；Between described annular groove upper surface (202) and described curved incision (101), interference fit has alignment pin (3).
Contain the gasoline engine piston of piston monocycle the most according to claim 6, it is characterised in that: described alignment pin (3)
For cylinder, its radius is less than the radius of described curved incision (101).
8. a cylinder, it is characterised in that: include the petrol engine work containing piston monocycle as claimed in claims 6 or 7
Plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610624863.5A CN106089484A (en) | 2016-08-03 | 2016-08-03 | Piston monocycle and containing the gasoline engine piston of this piston monocycle, cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610624863.5A CN106089484A (en) | 2016-08-03 | 2016-08-03 | Piston monocycle and containing the gasoline engine piston of this piston monocycle, cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106089484A true CN106089484A (en) | 2016-11-09 |
Family
ID=57453417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610624863.5A Pending CN106089484A (en) | 2016-08-03 | 2016-08-03 | Piston monocycle and containing the gasoline engine piston of this piston monocycle, cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106089484A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443394A (en) * | 2019-08-29 | 2021-03-05 | 通用汽车环球科技运作有限责任公司 | Piston assembly for an internal combustion engine of a motor vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2428587Y (en) * | 2000-05-26 | 2001-05-02 | 焦作市科达活塞环有限公司 | Combined piston ring |
| US20020117808A1 (en) * | 2001-02-27 | 2002-08-29 | Katsuaki Ogawa | Piston ring |
| CN101718339A (en) * | 2008-10-10 | 2010-06-02 | 雷义才 | Staggered positioning combination piston ring |
| JP2011169388A (en) * | 2010-02-18 | 2011-09-01 | Teikoku Piston Ring Co Ltd | Piston ring |
| CN202484287U (en) * | 2012-02-23 | 2012-10-10 | 杜明春 | Piston with double-ring closed, point-centered and joint-staggered using structure |
| CN205064110U (en) * | 2015-10-30 | 2016-03-02 | 安徽江淮汽车股份有限公司 | Piston and piston ring subassembly |
| CN205977448U (en) * | 2016-08-03 | 2017-02-22 | 重庆高金实业有限公司 | Piston monocycle and contain monocyclic petrol engine piston of this piston, cylinder |
-
2016
- 2016-08-03 CN CN201610624863.5A patent/CN106089484A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2428587Y (en) * | 2000-05-26 | 2001-05-02 | 焦作市科达活塞环有限公司 | Combined piston ring |
| US20020117808A1 (en) * | 2001-02-27 | 2002-08-29 | Katsuaki Ogawa | Piston ring |
| CN101718339A (en) * | 2008-10-10 | 2010-06-02 | 雷义才 | Staggered positioning combination piston ring |
| JP2011169388A (en) * | 2010-02-18 | 2011-09-01 | Teikoku Piston Ring Co Ltd | Piston ring |
| CN202484287U (en) * | 2012-02-23 | 2012-10-10 | 杜明春 | Piston with double-ring closed, point-centered and joint-staggered using structure |
| CN205064110U (en) * | 2015-10-30 | 2016-03-02 | 安徽江淮汽车股份有限公司 | Piston and piston ring subassembly |
| CN205977448U (en) * | 2016-08-03 | 2017-02-22 | 重庆高金实业有限公司 | Piston monocycle and contain monocyclic petrol engine piston of this piston, cylinder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443394A (en) * | 2019-08-29 | 2021-03-05 | 通用汽车环球科技运作有限责任公司 | Piston assembly for an internal combustion engine of a motor vehicle |
| US11313466B2 (en) | 2019-08-29 | 2022-04-26 | GM Global Technology Operations LLC | Piston assembly for an internal combustion engine of a motor vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2016091177A1 (en) | Engine piston assembly | |
| CN105972216A (en) | Circumferential graphite sealing device | |
| JP6480941B2 (en) | Uncoated cylinder head gasket | |
| CN105518356A (en) | Piston ring | |
| CN106089484A (en) | Piston monocycle and containing the gasoline engine piston of this piston monocycle, cylinder | |
| CN108194406A (en) | It is a kind of can the late release moment mechanically-sealing apparatus | |
| CN205977448U (en) | Piston monocycle and contain monocyclic petrol engine piston of this piston, cylinder | |
| CN105275659A (en) | Piston assembly for a reciprocating engine | |
| WO2016090894A1 (en) | Engine piston | |
| CN207406420U (en) | A kind of piston of gasoline engine ring | |
| CN204344302U (en) | A kind of engine piston assembly | |
| CN207339498U (en) | A kind of sealing structure of submersible motor | |
| CN207363764U (en) | A kind of sealing ring of turbocharger | |
| CN205277626U (en) | Piston gas tight sealing | |
| CN107725187A (en) | The shroud ring of novel energy internal combustion engine | |
| CN107701832A (en) | The flange of accurate energy internal combustion engine | |
| CN201250713Y (en) | Piston and piston ring component for combustion engine | |
| CN106050465A (en) | Combined type piston | |
| CN203515328U (en) | Sealing structure of bearing of cone | |
| CN207454104U (en) | The connecting flange of novel energy internal combustion engine | |
| CN202360241U (en) | Diesel engine crankshaft oil seal mechanism | |
| CN101581259A (en) | Method for establishing piston ring mechanism for sealing single-ring piston engine | |
| CN201672051U (en) | Gas-sealing piston ring and piston | |
| CN205937038U (en) | Piston ring lives with piston ring | |
| CN204200398U (en) | A kind of symmetry takes overlapped piston ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161109 |