CN204113473U - Piston of automobile engine assembly, motor car engine and automobile - Google Patents
Piston of automobile engine assembly, motor car engine and automobile Download PDFInfo
- Publication number
- CN204113473U CN204113473U CN201420381972.5U CN201420381972U CN204113473U CN 204113473 U CN204113473 U CN 204113473U CN 201420381972 U CN201420381972 U CN 201420381972U CN 204113473 U CN204113473 U CN 204113473U
- Authority
- CN
- China
- Prior art keywords
- piston
- automobile
- pin hole
- engine assembly
- automobile engine
- 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.)
- Expired - Fee Related
Links
- 210000000707 wrist Anatomy 0.000 claims abstract description 27
- 239000011248 coating agent Substances 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 24
- 230000013011 mating Effects 0.000 claims abstract description 3
- 238000005121 nitriding Methods 0.000 claims description 6
- 238000005240 physical vapour deposition Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a kind of piston of automobile engine assembly, motor car engine and automobile.This piston of automobile engine assembly comprises: piston, and it has piston pin hole and hollow part; And wrist pin, it has the shape with the mating shapes of piston pin hole; Wherein, the internal surface of piston pin hole is covered with rub resistance coating.By adopting piston of automobile engine assembly of the present utility model, the power failure because piston pin hole and wrist pin are out of shape and cause can be prevented when not changing existing piston structure with low cost.
Description
Technical field
The utility model relates to automotive engine applications, and more specifically, relates to a kind of piston of automobile engine assembly, motor car engine and automobile.
Background technique
In the face of environmental requirement and the horsepower requirements of increasingly stringent, automaker have employed various technology to improve engine performance, to reduce fuel consume and the discharge of decreasing pollution thing.Known adoptable technology comprises Engine Downsizing, engine booster and adopts motor etc.When vehicle technology is not yet popularized, what current automaker generally taked is the technology that can reduce engine exhaust or improve engine performance.These technology require that motor runs under higher burning pressure of explosion and harsher working state usually.
Piston is the common part in automobile engine cylinder-body, and the wrist pin that often there is piston pin hole and fit in piston pin hole.Known to those of skill in the art, piston is connected on connecting rod by piston pin hole and wrist pin.It is known that piston pin hole often has piston hole molded line profile, to adapt to piston pin hole and wrist pin in the issuable distortion of run duration.In running, piston stands high temperature and high pressure environment usually, and rubs with wrist pin and inner surface of cylinder block during high speed to-and-fro motion.Especially, when piston is arranged in the top dead center place of cylinder body, the mixed gas of fuel and air burns and produces high pressure of explosion, and this pressure to act on piston head and forces piston to move downward.In the process, violent friction and collision will occur between piston pin hole and wrist pin, and therefore, they likely deform, thus make the oil film between them be destroyed and dry friction occurs, cause Remedy for Piston Damage or stuck and cause power failure.
Therefore, a kind of can preventing when not changing existing piston structure because piston pin hole and wrist pin are out of shape and cause the piston assembly of power failure is it is desirable that designed.
Model utility content
An object of the present utility model is to provide a kind of piston of automobile engine assembly, and this piston of automobile engine assembly can prevent when not changing existing piston structure because piston pin hole and wrist pin are out of shape and cause power failure.Another object of the present utility model is to provide a kind of motor car engine, and this motor car engine comprises above-mentioned piston of automobile engine assembly.In addition, another object of the present utility model is to provide a kind of automobile, this automobile is provided with on above-mentioned piston of automobile engine assembly or this automobile and is provided with above-mentioned motor car engine.
The purpose of this utility model is achieved by the following technical solution:
A kind of piston of automobile engine assembly, it comprises:
Piston, it has piston pin hole and hollow part; And
Wrist pin, it has the shape with the mating shapes of piston pin hole;
Wherein, the internal surface of piston pin hole is covered with rub resistance coating.
Above-mentioned piston of automobile engine assembly, alternatively wherein, described rub resistance coating is gas nitriding coating, bath nitriding coating, diamond-like coating or the coating that formed by physical vapor deposition.
Above-mentioned piston of automobile engine assembly, alternatively wherein, assembly department is formed at the bottom of piston.
Above-mentioned piston of automobile engine assembly, alternatively wherein, piston pin hole flatly extends in assembly department.
Above-mentioned piston of automobile engine assembly, alternatively wherein, hollow part is communicated with piston pin hole, and hollow part has the shape being suitable for settling linkage mechanism.
A kind of motor car engine, wherein, motor car engine comprises aforementioned automotive engine piston assembly.
A kind of automobile, wherein, automobile is provided with aforementioned automotive engine piston assembly, or on automobile, is provided with aforementioned automotive motor.
The beneficial effects of the utility model are: the plurality of advantages such as this piston of automobile engine assembly has reasonable in design, be easy to manufacture, safe and reliable and life-span is long, adopt the utility model especially can with low cost and when not changing existing piston structure, prevent the power failure because piston pin hole and wrist pin are out of shape and cause, therefore effectively can improve safety in operation and the reliability of motor and vehicle.
Accompanying drawing explanation
Below with reference to accompanying drawing and preferred embodiment, the utility model is explained in further detail, wherein:
Fig. 1 is the assembling schematic diagram of an embodiment of piston of automobile engine assembly of the present utility model.
Embodiment
Preferred embodiment of the present utility model is described in detail below with reference to accompanying drawing.Those of skill in the art will understand, and these describe and are only descriptive, exemplary, and should not be interpreted as defining protection domain of the present utility model.
First, it should be noted that, top mentioned in this article, bottom, upward, be define relative to the piston shown in each accompanying drawing towards inferior orientation term, they are relative concepts, and therefore, it is possible to diverse location at it and different practical states and change.So, these or other orientation term should be interpreted as restricted term.
In addition, it is also important to note that, for describing in embodiment herein or implicit any single technical characteristics, shown in the drawings or implicit any single technical characteristics, still can proceed combination between these technical characteristicss (or its equivalent), thus obtain other embodiments of the present utility model directly do not mentioned in this article.
In different drawings, identical reference number represents identical element or part.
Fig. 1 is the assembling schematic diagram of a piston of automobile engine assembly of the present utility model embodiment.In this embodiment, piston of automobile engine assembly 10 is made up of piston 1 and wrist pin 4.
Piston 1 is shown with the form of cross-sectional side view in Fig. 1.Wherein, piston 1 comprises piston pin hole 3 and hollow part 7.In the preferred embodiment shown in the drawings, the fuel gas mixture of bearing in engine cylinder-body (not shown) is burnt when motor runs the pressure produced by the top surface of piston 1, and the top surface of piston 1 has the known shape of those of skill in the art.The fuel gas mixture pressure produced that burns is applied to piston 1 by the direction identified in arrow A.The side of piston 1 coordinates with engine cylinder-body, so that by spaced apart with under piston 1 of the space on piston 1.Assembly department 6 is formed at the bottom of piston 1.Piston pin hole 3 flatly extends and forms through-hole structure in assembly department 6.Hollow part 7 extends upward from the lower surface of assembly department 6, and this hollow part is preferably communicated with piston pin hole 3 and has the shape being suitable for settling linkage mechanism 5.In a preferred embodiment, piston pin hole 3 is depicted as the shape with substantial cylindrical, but, those of skill in the art by what understand are, piston pin hole 3 also can have other any suitable shapes, such as, with the shape of the piston pin hole molded line distortion of generation adapted at motor run duration piston pin hole and wrist pin.The internal surface of piston pin hole 3 is covered with coating 2.
Wrist pin 4 is shown with the form of side view in Fig. 1.Wherein, wrist pin 4 has the shape of substantial cylindrical, but, those of skill in the art by what understand are, wrist pin 4 also can have other any suitable shapes, such as, with the shape of the piston pin hole molded line distortion of generation adapted at motor car engine run duration piston pin hole and wrist pin.Wrist pin 4 is assembled in the piston pin hole 3 in piston 1 on the direction that arrow B identifies, and makes the outer surface of wrist pin 4 face coating 2 on the internal surface of piston pin hole 3.Those of skill in the art will understand, while wrist pin 4 is assembled into piston pin hole 3, linkage mechanism 5 by wrist pin 4 and hollow part 7 adaptive in place.
Piston 1 and wrist pin 4 can be made up of any suitable material reaching the utility model object.Such as, piston 1 can be made of aluminum, and wrist pin 4 can be formed from steel.
In order to bear pressure when motor car engine is run and the distortion of wrist pin 4 and piston pin hole 3, coating 2 is preferably rub resistance coating.Such as, coating 2 can be gas nitriding coating, bath nitriding coating, DLC (DLC) coating, the coating formed by physical vapor deposition (PVD) or concerning any applicable other types coating known those of skill in the art.By adopting this type coating, the molded line profile of piston pin hole 3 can offset the distortion of piston pin hole 3 self and the wrist pin 4 produced at motor car engine run duration, make piston pin hole 3 and wrist pin 4 dry friction can not occur, and then prevent from being damaged by piston assembly or the power failure of stuck initiation.
Disclosure of the present utility model can be used to manufacture motor car engine, and this motor car engine comprises piston of automobile engine assembly 10 of the present utility model.And disclosure of the present utility model can be used to manufacture automobile, this automobile is provided with piston of automobile engine assembly 10 of the present utility model or is provided with above-mentioned motor car engine.
This specification with reference to the open the utility model of accompanying drawing, and enables those of skill in the art implement the utility model, comprises and manufactures and use any device or system, select suitable material and use the method for any combination.Scope of the present utility model limits by asking the technological scheme protected, and comprises other examples that those of skill in the art expect.As long as these type of other examples comprise the structural element of the technological scheme literal language being not different from request protection; or these type of other examples comprise and the equivalent structural elements of asking the literal language of the technological scheme protected not have essential distinction, then these type of other examples are intended to be in the determined protection domain of the technological scheme protected by the utility model request.
Claims (7)
1. a piston of automobile engine assembly, it comprises:
Piston, it has piston pin hole and hollow part; And
Wrist pin, it has the shape with the mating shapes of described piston pin hole;
It is characterized in that, the internal surface of described piston pin hole is covered with rub resistance coating.
2. piston of automobile engine assembly according to claim 1, is characterized in that, described rub resistance coating is gas nitriding coating, bath nitriding coating, diamond-like coating or the coating that formed by physical vapor deposition.
3. piston of automobile engine assembly according to claim 1, is characterized in that, assembly department is formed at the bottom of described piston.
4. piston of automobile engine assembly according to claim 3, is characterized in that, described piston pin hole flatly extends in described assembly department.
5. piston of automobile engine assembly according to claim 1, is characterized in that, described hollow part is communicated with described piston pin hole, and described hollow part has the shape being suitable for settling linkage mechanism.
6. a motor car engine, is characterized in that, described motor car engine comprises the piston of automobile engine assembly according to any one in claim 1 to claim 5.
7. an automobile, is characterized in that, described automobile is provided with the piston of automobile engine assembly according to any one in claim 1 to claim 5, or described automobile is provided with motor car engine according to claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420381972.5U CN204113473U (en) | 2014-07-11 | 2014-07-11 | Piston of automobile engine assembly, motor car engine and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420381972.5U CN204113473U (en) | 2014-07-11 | 2014-07-11 | Piston of automobile engine assembly, motor car engine and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113473U true CN204113473U (en) | 2015-01-21 |
Family
ID=52330790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420381972.5U Expired - Fee Related CN204113473U (en) | 2014-07-11 | 2014-07-11 | Piston of automobile engine assembly, motor car engine and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204113473U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110431334A (en) * | 2017-02-21 | 2019-11-08 | 标致雪铁龙汽车股份有限公司 | Power transmission device for heat engine |
-
2014
- 2014-07-11 CN CN201420381972.5U patent/CN204113473U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110431334A (en) * | 2017-02-21 | 2019-11-08 | 标致雪铁龙汽车股份有限公司 | Power transmission device for heat engine |
| EP3586045B1 (en) | 2017-02-21 | 2021-03-31 | PSA Automobiles SA | Movement transmission device for a combustion engine |
| EP3586045B2 (en) † | 2017-02-21 | 2024-04-17 | Stellantis Auto SAS | Movement transmission device for a combustion engine |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 |