CN215057785U - Piston cooling structure - Google Patents
Piston cooling structure Download PDFInfo
- Publication number
- CN215057785U CN215057785U CN202120186187.4U CN202120186187U CN215057785U CN 215057785 U CN215057785 U CN 215057785U CN 202120186187 U CN202120186187 U CN 202120186187U CN 215057785 U CN215057785 U CN 215057785U
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- Prior art keywords
- connecting rod
- piston
- nozzle mounting
- end part
- nozzle
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Abstract
The utility model relates to a piston cooling structure belongs to the technical field of automobile engine design and manufacturing. The utility model discloses a piston cooling structure, which comprises a piston body, a connecting rod, a cooling nozzle, a bearing bush and a connecting rod cover; the small end part of the connecting rod is connected with the piston body through a piston pin, two sides of the upper surface of the large end part of the connecting rod are respectively provided with a nozzle mounting boss, a nozzle mounting hole communicated to the lower surface of the large end part is formed in each nozzle mounting boss, the cooling nozzle is mounted in each nozzle mounting hole, the bearing bush is arranged between the large end part of the connecting rod and the connecting rod cover, and a lubricating oil hole facing the nozzle mounting hole is formed in the bearing bush. The utility model discloses a part that piston cooling structure increases is small in quantity, and simple structure is compact, arranges the degree of difficulty low to can reduce production and assembly process.
Description
Technical Field
The utility model relates to a technical field of automobile engine design and manufacturing, more specifically say, the utility model relates to a piston cooling structure.
Background
In the prior art, a piston without a cooling scheme is arranged, so that the heat load of the piston is large, in order to reduce the heat load of the piston, the piston is cooled by means of a cooling nozzle, and in the prior art, the cooling nozzle is usually arranged on the lower end face of a cylinder barrel and is screwed by bolts. However, the cooling structure has a plurality of parts, and the production cost and the management cost are high; the distance between the nozzle and the piston and the connecting rod is short, and avoidance needs to be performed; the production and assembly processes are complicated.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems in the prior art, an object of the present invention is to provide a piston cooling structure.
The utility model discloses a piston cooling structure, which comprises a piston body, a connecting rod, a cooling nozzle, a bearing bush and a connecting rod cover; the small end part of the connecting rod is connected with the piston body through a piston pin, two sides of the upper surface of the large end part of the connecting rod are respectively provided with a nozzle mounting boss, a nozzle mounting hole communicated to the lower surface of the large end part is formed in each nozzle mounting boss, the cooling nozzle is mounted in each nozzle mounting hole, the bearing bush is arranged between the large end part of the connecting rod and the connecting rod cover, and the bearing bush is provided with a lubricating oil hole facing the nozzle mounting hole.
The big end part of the connecting rod is connected with the connecting rod cover and fixes the bearing bush.
The big end part of the connecting rod is connected with the connecting rod cover through a bolt.
Wherein, the nozzle mounting hole is a machining hole.
Wherein, the nozzle mounting boss and the connecting rod are integrally forged and formed.
Compared with the prior art, the utility model discloses a piston cooling structure has following beneficial effect:
(1) the temperature of the top surface of the piston is reduced, and the heat load of the piston is reduced;
(2) the structure is simple and compact, and the arrangement difficulty is reduced;
(3) the number of parts is reduced, and the production cost and the management cost are reduced;
(4) the production and assembly processes are reduced.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of the piston cooling structure of the present invention.
Fig. 2 is a front view of the piston cooling structure of the present invention (excluding the piston pin).
Detailed Description
The piston cooling structure of the present invention will be further described with reference to the following embodiments to help those skilled in the art to understand the technical solution of the present invention more completely, accurately and deeply.
Example 1
As shown in fig. 1 to 2, the piston cooling structure of the present embodiment includes a piston body 1, a connecting rod 3, a cooling nozzle 5, a bush 8, and a connecting rod cap 9. The small end part of the connecting rod 3 is connected with the piston body 1 through a piston pin 2, two sides of the upper surface of the large end part of the connecting rod 3 are respectively provided with a nozzle mounting boss 7, a nozzle mounting hole 6 communicated to the lower surface of the large end part is formed in each nozzle mounting boss 7, and the cooling nozzle 5 is pressed in each nozzle mounting hole 6. The bearing bush 8 is disposed between the large end of the connecting rod 3 and the connecting rod cap 9, and the large end of the connecting rod 3 is connected to the connecting rod cap 9 by a bolt to fix the bearing bush 8. The bearing bush 8 is provided with a lubricating oil hole (not shown in the figure) facing the nozzle mounting hole 6. In the piston cooling structure of the embodiment, lubricating oil is sprayed to the inner cavity at the top of the piston through the lubricating oil hole of the bearing bush and the nozzle mounting hole of the connecting rod to form lubricating oil spray 4 by 2 cooling nozzles so as to cool the piston. When the nozzle mounting hole is designed, the spray beam is ensured to be sprayed to the top of the piston, so that the cooling effect is better. In order to avoid increasing excessive rotating mass, the nozzle mounting boss at the large end part of the connecting rod is designed to be as small as possible on the basis of ensuring the mounting requirement and the structural requirement. In the piston cooling structure of the embodiment, the nozzle mounting hole is formed by machining, the nozzle mounting boss and the connecting rod are integrally forged, the piston cooling structure of the embodiment has the advantages of small number of added parts, simple and compact structure and capability of reducing the arrangement difficulty, so that the production and assembly processes can be reduced.
For those skilled in the art, the specific embodiments are only exemplary descriptions of the present invention, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial modifications are possible within the protection scope of the present invention as long as the method concept and technical solution of the present invention are adopted.
Claims (5)
1. A piston cooling structure comprises a piston body, a connecting rod, a cooling nozzle, a bearing bush and a connecting rod cover; the small end of the connecting rod is connected with the piston body through a piston pin, and the connecting rod is characterized in that: the cooling nozzle is characterized in that two sides of the upper surface of the large end part of the connecting rod are respectively provided with a nozzle mounting boss, a nozzle mounting hole communicated to the lower surface of the large end part is formed in each nozzle mounting boss, the cooling nozzle is arranged in each nozzle mounting hole, the bearing bush is arranged between the large end part of the connecting rod and the connecting rod cover, and the bearing bush is provided with a lubricating oil hole facing the nozzle mounting hole.
2. The piston cooling structure according to claim 1, wherein: the big end part of the connecting rod is connected with the connecting rod cover and fixes the bearing bush.
3. The piston cooling structure according to claim 2, wherein: the big end part of the connecting rod is connected with the connecting rod cover through a bolt.
4. The piston cooling structure according to claim 1, wherein: the nozzle mounting hole is a machined hole.
5. The piston cooling structure according to claim 1, wherein: the nozzle mounting boss and the connecting rod are integrally forged and formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120186187.4U CN215057785U (en) | 2021-01-22 | 2021-01-22 | Piston cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120186187.4U CN215057785U (en) | 2021-01-22 | 2021-01-22 | Piston cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215057785U true CN215057785U (en) | 2021-12-07 |
Family
ID=79252367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120186187.4U Active CN215057785U (en) | 2021-01-22 | 2021-01-22 | Piston cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215057785U (en) |
-
2021
- 2021-01-22 CN CN202120186187.4U patent/CN215057785U/en active Active
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