CN202360237U - Piston with cooling oil path - Google Patents
Piston with cooling oil path Download PDFInfo
- Publication number
- CN202360237U CN202360237U CN2011203182060U CN201120318206U CN202360237U CN 202360237 U CN202360237 U CN 202360237U CN 2011203182060 U CN2011203182060 U CN 2011203182060U CN 201120318206 U CN201120318206 U CN 201120318206U CN 202360237 U CN202360237 U CN 202360237U
- Authority
- CN
- China
- Prior art keywords
- piston
- cooling oil
- piston body
- oil duct
- oil path
- 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
Images
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a component of an automobile engine, and specially relates to a piston with a cooling oil path. The technology problem is solved as following: in the prior art, the piston is impacted by periodical mechanical load and thermic load during work, the heat strengthening degree of the present engine is high, heat at the head of the piston is accumulated, the whole piston is deformed by heating, and the usage effect is influenced. According to the utility model, a piston (1) is included, which is characterized in that the whole piston (1) is cylindrical, the nuchal portion of the piston is provided with a combustion chamber (2), the external surface of the top of the piston is provided with a ring groove (3), an annular cooling oil path (4) is arranged in the piston, the cooling oil path is connected with a jet, and the lower portion of the piston is provided with a pinhole (5).
Description
Technical field
The utility model relates to a kind of component of motor car engine, especially relates to a kind of band cooling oil duct piston.
Background technique
Along with motor, especially along with DENG develops to high compression ratio, high-output power, low emission, long lifetime direction; The use of technology such as charge inter cooling, Electrocontrolled high-pressure injection more and more widely; Piston as the motor heart component; Heat load and mechanical load that it bore are increasing, piston failure phenomenons such as piston head cracking, piston snap ring, piston pin boss cracking occur through regular meeting, cause motor to run well.Chinese patent discloses a kind of piston (notice of authorization number: CN20l827353U) of motor car engine; Be provided with the cavity that can seal in its body; Liquid medium is housed in the cavity, and the body outside also is provided with the filler port that communicates with the body interior cavity, and the filler port place is provided with the plug that is tightly connected with body; The volume of liquid medium is slightly less than the volume of cavity, and liquid medium is antifreeze liquid or water.Chinese patent also discloses a kind of motor car engine piston (notice of authorization number: CN 201100184Y); It comprises piston body; It is oval barrel-shaped that piston body is, and fiery bank adopts unitary tapered design, and by first compression ring, second compression ring, oil ring three ring bank designs; On the key seat of piston body stiffening rib is arranged, the firepower bank adopts low firepower design.But these two kinds of pistons can receive the impact of periodic mechanical load and heat load at work, and existing engine thermal reinforcing degree is higher, and the heat of piston crown just can stockpile, and making whole piston temperature distortion influences using effect.
The model utility content
The utility model provides a kind of band cooling oil duct piston; It mainly is to solve the impact that the existing in prior technology piston can receive periodic mechanical load and heat load at work; And existing engine thermal reinforcing degree is higher; The heat of piston crown just can stockpile, and makes whole piston temperature distortion, influences the technical problem of using effect etc.
The above-mentioned technical problem of the utility model mainly is able to solve through following technical proposals:
A kind of band cooling oil duct piston of the utility model; Comprise piston body, described piston body integral body is cylindrical, and the inside of piston body napex is provided with the firing chamber; The outer surface at piston body top is provided with annular groove; Piston body inside is provided with the cooling oil duct of annular, and cooling oil duct is connected with jet, and the bottom of piston body is provided with pin-and-hole.Piston body can be formed from aluminium, and the black phosphating processing can be carried out in its surface, can increase the corrosion resistance of piston body like this.The annular groove on piston body top can be installed compression ring, oil ring.Head at piston body has increased cooling oil duct; Can be at the inner filling of cooling oil duct cooling machine oil, cooling machine oil can not be full of whole cooling oil duct, makes cooling machine oil in cooling oil duct, to shake and flows; Thereby form turbulent flow; The effect of cooling is better, has increased the heat radiation of piston body head, has reduced the heat load of piston body head.
As preferably, the outer surface at described piston body top is provided with the edge ring, and the edge ring is processed one with piston body.The one ring bank castingin at piston body top has the edge ring, can effectively improve the tensile strength of a ring bank, reduces the thermal distortion of piston body head.
As preferably, the outer surface of described piston body bottom is the skirt section, is provided with one deck printing graphite layer outside the skirt section.The skirt section spraying printing graphite layer of piston body helps the break-in of lubricating engine initial stage, makes normal working of engine, in order to avoid engine scuffing.
As preferably, described firing chamber includes circular arc base ring groove, is provided with at the bottom of the protruding round platform in the middle of the circular arc base ring groove.Fuel oil and air are fully mixed, and sufficient combustion reduces heat load, reduces firing chamber oral area stress and concentrates.
As preferably, the interior angle of described pin-and-hole is a fillet.When assembling, push bearing pin like this, bearing pin can or not cause pin-and-hole to pull phenomenon very along get into pin-and-hole slidingly.
Therefore, the inside that the utility model is utilized in the piston body head adds cooling oil duct, makes cooling machine oil in the piston body head, to flow; Increase the heat radiation of piston body head, reduced the heat load of piston body head, prevented the piston temperature distortion; Working life is longer, and is simple and reasonable for structure.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the utility model;
Accompanying drawing 2 is side structure schematic representation of Fig. 1.
Component, position and numbering among the figure: at the bottom of piston body 1, firing chamber 2, annular groove 3, cooling oil duct 4, pin-and-hole 5, edge ring 6, skirt section 7, annular groove 8, the round platform 9.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technological scheme of the utility model.
Embodiment: a kind of band cooling oil duct piston of this example like Fig. 1, Fig. 2, has a piston body 1; Piston body 1 integral body is cylindrical; The inside of piston body napex is provided with firing chamber 2, and the firing chamber includes circular arc base ring groove 8, is provided with at the bottom of the protruding round platform 9 in the middle of the circular arc base ring groove.The outer surface at piston body top is provided with annular groove 3 and edge ring 6, and wherein the edge ring is processed one with piston body.Piston body inside is provided with the cooling oil duct 4 of annular, and cooling oil duct is connected with jet, and the bottom of piston body is provided with pin-and-hole 5, and the interior angle of pin-and-hole is a fillet.The outer surface of piston body bottom is skirt section 7, is provided with one deck printing graphite layer outside the skirt section.
During use, utilize pin-and-hole 4 on the piston body 1 that whole piston is packed into and get final product in the charged injection internal combustion engine.
The above is merely the specific embodiment of the utility model; But the structure characteristic of the utility model is not limited thereto; Any those skilled in the art is in the field of the utility model, and variation of being done or modification all are encompassed among the claim of the utility model.
Claims (5)
1. be with the cooling oil duct piston for one kind; Comprise piston body (1), it is characterized in that described piston body (1) is whole for cylindrical, the inside of piston body napex is provided with firing chamber (2); The outer surface at piston body top is provided with annular groove (3); Piston body inside is provided with the cooling oil duct (4) of annular, and cooling oil duct is connected with jet, and the bottom of piston body is provided with pin-and-hole (5).
2. a kind of band cooling oil duct piston according to claim 1 is characterized in that the outer surface at described piston body (1) top is provided with edge ring (6), and the edge ring is processed one with piston body.
3. a kind of band cooling oil duct piston according to claim 1 and 2 is characterized in that the outer surface of described piston body (1) bottom is skirt section (7), is provided with one deck printing graphite layer outside the skirt section.
4. a kind of band cooling oil duct piston according to claim 1 and 2 is characterized in that described firing chamber (2) includes circular arc base ring groove (8), is provided with in the middle of the circular arc base ring groove (9) at the bottom of the protruding round platform.
5. a kind of band cooling oil duct piston according to claim 1 and 2, the interior angle that it is characterized in that described pin-and-hole (5) is a fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203182060U CN202360237U (en) | 2011-08-29 | 2011-08-29 | Piston with cooling oil path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203182060U CN202360237U (en) | 2011-08-29 | 2011-08-29 | Piston with cooling oil path |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202360237U true CN202360237U (en) | 2012-08-01 |
Family
ID=46571427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203182060U Expired - Fee Related CN202360237U (en) | 2011-08-29 | 2011-08-29 | Piston with cooling oil path |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202360237U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121851A (en) * | 2016-07-14 | 2016-11-16 | 邹敏 | A kind of piston of L-type annular groove |
-
2011
- 2011-08-29 CN CN2011203182060U patent/CN202360237U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121851A (en) * | 2016-07-14 | 2016-11-16 | 邹敏 | A kind of piston of L-type annular groove |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201401242Y (en) | Piston combustion chamber of diesel motor | |
| CN201972805U (en) | Light-weight equal-rigidity aluminum diesel engine body | |
| US20030136372A1 (en) | Combustion chamber | |
| CN202360237U (en) | Piston with cooling oil path | |
| CN202250454U (en) | Electrical ejection engine piston | |
| CN202250452U (en) | Double-trapezoid-shaped piston with inlaid ring | |
| CN202250445U (en) | In-line engine piston | |
| CN202250444U (en) | Piston of internal combustion engine | |
| CN204163871U (en) | The strong cooling steel piston of a kind of gas engine | |
| CN202250451U (en) | Electric spraying piston with oil duct | |
| CN202250446U (en) | Integral piston with inner chamber | |
| CN201284698Y (en) | Pin hole copper-inlaid lining type piston with inner-cooling structure | |
| CN202250453U (en) | Piston of construction machinery engine | |
| CN202250447U (en) | Piston of internal combustion engine with electronic spray function | |
| CN201297216Y (en) | Automobile engine piston | |
| CN201730697U (en) | Labyrinth cylinder sealing structure | |
| CN201486681U (en) | Heavy diesel engine piston ring set | |
| CN209444456U (en) | Piston of gas engine | |
| CN216142821U (en) | Steel piston of heavy diesel engine | |
| CN203626981U (en) | Engine body and engine | |
| CN201448158U (en) | Engine cylinder head | |
| CN202228206U (en) | Engine cylinder cover | |
| CN202140186U (en) | Diesel engine | |
| CN205172747U (en) | Quick -witted piston of air conditioning body in floated | |
| CN109681341A (en) | Piston of gas engine |
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: 20120801 Termination date: 20170829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |