CN201916070U - Piston of reciprocating type engine - Google Patents
Piston of reciprocating type engine Download PDFInfo
- Publication number
- CN201916070U CN201916070U CN2010206688347U CN201020668834U CN201916070U CN 201916070 U CN201916070 U CN 201916070U CN 2010206688347 U CN2010206688347 U CN 2010206688347U CN 201020668834 U CN201020668834 U CN 201020668834U CN 201916070 U CN201916070 U CN 201916070U
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- piston
- oil
- oil duct
- cooling
- cooling oil
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Abstract
The utility model provides a piston of a reciprocating type engine, belonging to the technical field of an automobile, and aiming at solving the problem that a head and a group part of the existing piston provided with a lubricating device can not be lubricated. The piston of the reciprocating type engine comprises a piston body provided with the group part and the head, and the end part of the body is provided with an inner cavity of the piston extending to the head of the body; the outer side of the group part is provided with an oil collecting ring groove; the end part is also provided with a cooling oil duct extending to the head; the cooling oil duct is connected with the inner cavity of the piston by an oil return channel; and the body is also provided with a lubricating oil duct connected with the cooling oil duct and the oil collecting ring groove. The piston of the reciprocating type engine has the advantages of good lubrication effect, long service life and the like.
Description
Technical field
The utility model belongs to automobile technical field, relates to the piston of a kind of Reciprocating engine, particularly a kind of Reciprocating engine.
Background technique
Reciprocating engine also is piston engine, is a kind of motor that utilizes one or more piston pressure to be converted to rotation function.The most frequently used Reciprocating engine utilizes gasoline or diesel fuel to produce pressure.The all more than piston of common this motor, all in cylinder, fuel and AIR MIXTURES are injected in it each piston, are lighted then.Hot gas expands, and promotes piston and moves backward.This straight line motion of piston converts circular movement to by connecting rod and bent axle.But the lubricating structure of piston is not very good in the existing Reciprocating engine, thereby causes the phenomenon that crank-connecting rod locking and cylinder are pulled, and the working life of motor is short.
For this reason, people have proposed various solutions through long-term exploration, and some has also applied for patent.For example, Chinese patent discloses a kind of piston that lubricating structure arranged [notice of authorization number be: CN 2634203Y], and the wrist pin hole wall on piston both sides is provided with oilhole and is communicated with inwall inclined-plane, piston skirt.Originally there is the piston of lubricating structure can guarantee lubricating between wrist pin and the piston, avoids causing the phenomenon of crank-connecting rod locking, prolong the working life of motor because of unlubricated oil.
But this have the piston of lubricating structure still to have following shortcoming: 1, this structure only is lubricated the head of piston and the position between the group portion, head and group portion that can not lube pistons, and lubrication effect is bad, still can cause the phenomenon of crank-connecting rod locking; 2, piston crown and group portion can not get well lubricated, it is bad by the effect that lubricant oil cools off, wear and tear easily, pull between piston skirt and the cylinder wall even bonding, the temperature of piston increases easily, influence the working life of piston, and then have influence on the working life of whole Reciprocating engine.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed the piston of the Reciprocating engine of a kind of high lubricating effect, long service life.
The purpose of this utility model can realize by following technical proposal:
The piston of this Reciprocating engine, comprise piston only with group portion and head, the end of described body is provided with the piston cavity that extends to its head place, the described group portion outside offers the oil-collecting annular groove, it is characterized in that, described end also is provided with the cooling oil duct that extends to the head place, and described cooling oil duct is connected with piston cavity by back oil road, also is provided with the oil leab that connects cooling oil duct and oil-collecting annular groove on the described body.
In the running of motor, cutting oil enters in the cooling oil duct, and fraction low temperature refrigeration lubricant oil enters the oil-collecting annular groove by oil leab, the lube pistons skirt section; Most of cooling and lubricating oil cooled piston is got back in the piston cavity by back oil road behind the top, finally gets back in the oil sump.In the piston of this Reciprocating engine, the piston skirt temperature obtains certain reduction, and amount of deformation also corresponding minimizing in piston skirt makes piston life improve.
In the piston of above-mentioned Reciprocating engine, also be provided with the cooling jet that cutting oil can be inputed in the cooling oil duct on the described body, described cooling jet is positioned at the below and the corresponding setting with cooling oil duct of cooling oil duct.The purpose that nozzle is set is, makes things convenient for cutting oil to enter in the cooling oil duct.
In the piston of above-mentioned Reciprocating engine, described cooling oil duct is positioned at it and locates to be little coniform of outer imperial palace bottom.
In the piston of above-mentioned Reciprocating engine, described cooling oil duct is two, is separately positioned on the both sides of piston cavity, and every cooling oil duct is connected with piston cavity by back oil road respectively.The cooling effect that piston group portion and piston head are set like this is better, and piston group portion is lubricated better.
In the piston of above-mentioned Reciprocating engine, described cooling jet is two, with the above-mentioned corresponding one by one setting of two cooling oil ducts.
In the piston of above-mentioned Reciprocating engine, described oil leab is two, is separately positioned on two cooling oil duct places.
Compared with prior art, the piston of this Reciprocating engine has the following advantages:
1, Xin Zeng cooling oil duct and oil trap provide subzero oil to the piston skirt, and the lubricated of piston skirt improves; Cooling jet provides more subzero oil for cooling oil duct, and the piston cooling effect is improved.
2, the piston skirt temperature obtains certain reduction, and amount of deformation also corresponding minimizing in piston skirt makes piston life be improved.
Description of drawings
Fig. 1 is the plan view of the piston of this Reciprocating engine.
Fig. 2 is the left view of the piston of this Reciprocating engine.
Among the figure, 1, body; 11, piston cavity; 12, oil-collecting annular groove; 13, cooling oil duct; 14, back oil road; 15, oil leab; 2, cooling jet.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, the piston of this Reciprocating engine comprises the piston only 1 with group portion and head, the end of body 1 is provided with the piston cavity 11 that extends to its head place, the aperture, lower end of piston sky is greater than the aperture of its upper end, and as illustrated in fig. 1 and 2, promptly piston cavity 11 is step-like.In order to increase the lubricity of piston, offer oil-collecting annular groove 12 in the outside of its group portion, as depicted in figs. 1 and 2, oil-collecting annular groove 12 is positioned at the group portion place of piston, and the lubricant oil in it mainly is lubricated the group portion and the steel wall of piston.
As depicted in figs. 1 and 2, also be provided with the cooling oil duct 13 to the head place in the end of body 1, as shown in Figure 1, cooling oil duct 13 is two, be symmetricly set in the body 1, and the lower end of cooling oil duct 13 is little coniform of outer imperial palace.As shown in Figure 1, at the coniform place of cooling oil duct 13, be provided with the oil leab 15 that is communicated with cooling oil duct 13 and oil-collecting annular groove 12, the oil leab 15 here is two, connects respectively at two cooling oil ducts 13.
As shown in Figure 1, be provided with cooling jet 2 below cooling oil duct 13, cooling jet 2 is two, and is corresponding one by one with cooling oil duct 13.Cooling jet 2 is injected to cutting oil in the cooling oil duct 13, makes cutting oil can enter into the head of body 1.
As shown in Figure 2, be provided with the back oil road 14 that connects piston cavity 11 in the upper end of cooling oil duct 13, its effect is that cutting oil is turned back in the oil sump.
In the running of motor, cooling jet 2 is spray low temperature refrigeration lubricant oil in cooling oil duct 13, and cutting oil enters in the cooling oil duct 13, and fraction low temperature refrigeration lubricant oil enters oil-collecting annular groove 12 by oil leab 15, the lube pistons skirt section; Most of cooling and lubricating oil cooled piston is got back in the piston cavity 11 by back oil road 14 behind the top, finally gets back in the oil sump.In the piston of this Reciprocating engine, the piston skirt temperature obtains certain reduction, and amount of deformation also corresponding minimizing in piston skirt makes piston life improve.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as body 1, piston cavity 11, oil-collecting annular groove 12, cooling oil duct 13, back oil road 14, oil leab 15, cooling jet 2 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (6)
1. the piston of a Reciprocating engine, comprise piston only (1) with group portion and head, the end of described body (1) is provided with the piston hole (11) that extends to its head place, the described group portion outside offers oil-collecting annular groove (12), it is characterized in that, described end also is provided with the cooling oil duct (13) that extends to the head place, described cooling oil duct (13) is connected with piston hole (11) by back oil road (14), also is provided with the oil leab (15) that connects cooling oil duct (13) and oil-collecting annular groove (12) on the described body (1).
2. the piston of Reciprocating engine according to claim 1, it is characterized in that, also be provided with the cooling jet (2) that cutting oil can be inputed in the cooling oil duct (13) on the described body (1), described cooling jet (2) be positioned at cooling oil duct (13) the below and with the corresponding setting of cooling oil duct (13).
3. the piston of Reciprocating engine according to claim 2 is characterized in that, described cooling oil duct (13) is positioned at it and locates to be little coniform of outer imperial palace bottom.
4. the piston of Reciprocating engine according to claim 3, it is characterized in that, described cooling oil duct (13) is two, is separately positioned on the both sides of piston hole (11), and every cooling oil duct (13) is connected with piston hole (11) by back oil road (14) respectively.
5. the piston of Reciprocating engine according to claim 4 is characterized in that, described cooling jet (2) is two, with the above-mentioned corresponding one by one setting of two cooling oil ducts (13).
6. according to the piston of claim 1 or 2 or 3 or 4 or 5 described Reciprocating engines, it is characterized in that described oil leab (15) is two, be separately positioned on two cooling oil ducts (13) and locate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206688347U CN201916070U (en) | 2010-12-20 | 2010-12-20 | Piston of reciprocating type engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206688347U CN201916070U (en) | 2010-12-20 | 2010-12-20 | Piston of reciprocating type engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201916070U true CN201916070U (en) | 2011-08-03 |
Family
ID=44415869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206688347U Expired - Fee Related CN201916070U (en) | 2010-12-20 | 2010-12-20 | Piston of reciprocating type engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201916070U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134402A (en) * | 2014-06-06 | 2015-12-09 | 通用电气公司 | Piston assembly for a reciprocating engine |
| CN105275660A (en) * | 2014-06-06 | 2016-01-27 | 通用电气公司 | Piston assembly for a reciprocating engine |
| CN107091166A (en) * | 2016-02-18 | 2017-08-25 | 曼卡车和巴士股份公司 | Piston for stroke piston combustion engine |
| CN110878721A (en) * | 2019-12-05 | 2020-03-13 | 宁波吉利罗佑发动机零部件有限公司 | Piston device, piston temperature control system and method and vehicle |
-
2010
- 2010-12-20 CN CN2010206688347U patent/CN201916070U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134402A (en) * | 2014-06-06 | 2015-12-09 | 通用电气公司 | Piston assembly for a reciprocating engine |
| CN105275660A (en) * | 2014-06-06 | 2016-01-27 | 通用电气公司 | Piston assembly for a reciprocating engine |
| CN105134402B (en) * | 2014-06-06 | 2020-01-17 | 通用电气公司 | Piston assembly for reciprocating engine |
| CN107091166A (en) * | 2016-02-18 | 2017-08-25 | 曼卡车和巴士股份公司 | Piston for stroke piston combustion engine |
| CN107091166B (en) * | 2016-02-18 | 2021-01-29 | 曼卡车和巴士股份公司 | Piston for a reciprocating piston internal combustion engine |
| CN110878721A (en) * | 2019-12-05 | 2020-03-13 | 宁波吉利罗佑发动机零部件有限公司 | Piston device, piston temperature control system and method and vehicle |
| CN110878721B (en) * | 2019-12-05 | 2021-08-24 | 宁波吉利罗佑发动机零部件有限公司 | Piston temperature control system and method and vehicle |
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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 |
Granted publication date: 20110803 Termination date: 20181220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |