CN214787732U - 350mm cylinder diameter medium-speed high-power piston - Google Patents
350mm cylinder diameter medium-speed high-power piston Download PDFInfo
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- CN214787732U CN214787732U CN202121142099.0U CN202121142099U CN214787732U CN 214787732 U CN214787732 U CN 214787732U CN 202121142099 U CN202121142099 U CN 202121142099U CN 214787732 U CN214787732 U CN 214787732U
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- blind plate
- plate
- speed high
- orifice plate
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Abstract
The utility model relates to a 350mm cylinder diameter medium-speed high-power piston, including the piston body, piston skirt portion is installed to the inside intermediate position department of piston body, cooling oil inlet is installed to the inside intermediate position department of piston skirt portion, the blind plate is installed to the top of cooling oil inlet, the backward flow orifice plate is installed to one side of blind plate, the piston top is all installed at the top of blind plate and backward flow orifice plate, the piston oil pocket has been seted up to the inside of piston top, and the blind plate with the backward flow orifice plate is located the both sides of piston oil pocket, the oil gallery is still installed to the opposite side of piston body; through the cooperation of the piston body, the cooling oil inlet, the piston top, the backflow pore plate and the oil return hole, the piston body can be conveniently and rapidly cooled and can rapidly flow, the piston is prevented from being damaged in a 350mm cylinder diameter, the piston top is of a cambered surface concave structure, fuel atomization and combustion are facilitated, and oil consumption of a diesel engine is reduced.
Description
Technical Field
The utility model relates to a piston technical field especially relates to a high-power piston of 350mm cylinder diameter intermediate speed.
Background
The 350mm cylinder diameter and above high-power diesel engines are monopolized abroad all the time, no diesel engine with the cylinder diameter reaching 350mm is independently designed in China, the design is mainly matched with the development and design of the 350mm cylinder diameter medium-speed high-power diesel engine for ships, and due to space limitation, the connecting bolt of the piston top and the skirt part has the fracture condition in the existing steel top piston, so that the functionality of the piston in the 350mm cylinder diameter diesel engine cannot be reduced, and convenience cannot be brought to workers.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a high-power piston of 350mm cylinder diameter intermediate speed, have the design of whole nodular cast iron piston, in certain jar pressure that adapts to, improve the advantage to 350mm cylinder diameter with integral piston application.
The technical scheme for realizing the purpose is as follows:
the utility model provides a 350mm cylinder diameter medium speed high-power piston, including the piston body, piston skirt portion is installed to the inside intermediate position department of piston body, the cooling oil import is installed to piston skirt portion's inside intermediate position department, the blind plate is installed to the top of cooling oil import, the backward flow orifice plate is installed to one side of blind plate, the blind plate with the piston top is all installed at the top of backward flow orifice plate, piston cavity has been seted up to the inside on piston top, just the blind plate with the backward flow orifice plate is located piston cavity's both sides, the oil gallery is still installed to the opposite side of piston body.
Preferably, the top of the piston top is arc-shaped. The fuel consumption of the diesel engine is reduced in order to facilitate fuel atomization and combustion.
Preferably, the blind plate and the return orifice plate are symmetrically positioned. In order to facilitate the uniform stress at the two ends of the piston body.
Preferably, the cooling oil inlet is an iron member. In order to increase the service life of the cooling oil inlet.
Preferably, three piston rings are further mounted inside the piston crown. To facilitate reducing the temperature conducted down above the piston.
Preferably, the piston body is of an integral ductile iron structure. In order to increase the firmness of the piston body.
Preferably, the number of the oil return holes is two. In order to increase the standby performance of the oil return hole.
The utility model has the advantages that: in the using process of the utility model,
1. the piston body, the cooling oil inlet, the piston top, the backflow pore plate and the oil return hole are matched, so that the piston body can be cooled rapidly and can flow rapidly, and the piston is prevented from being damaged in a cylinder diameter of 350 mm;
2. the piston top is of a cambered surface concave structure, so that fuel atomization and combustion are facilitated, and the oil consumption of the diesel engine is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic side view of the piston body of fig. 1 according to the present invention;
description of reference numerals:
1. a piston body; 2. a cooling oil inlet; 3. a blind plate; 4. a piston top; 5. a return orifice plate; 6. an oil return hole; 7. a piston skirt; 8. the piston oil chamber.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to fig. 1 to 2, the utility model provides a 350mm cylinder diameter medium speed high power piston, including piston body 1, piston body 1's inside intermediate position department is connected with piston skirt portion 7, piston skirt portion 7's inside intermediate position department installs coolant oil import 2, blind plate 3 is installed to coolant oil import 2's top, backward flow orifice plate 5 is installed to one side of blind plate 3, piston top 4 is all installed at blind plate 3 and backward flow orifice plate 5's top, piston cavity 8 has been seted up to piston top 4's inside, and blind plate 3 and backward flow orifice plate 5 are located piston cavity 8's both sides, oil gallery 6 is still installed to piston body 1's opposite side.
In the embodiment, lubricating oil enters the connecting rod through the crankshaft and then enters the piston pin, then enters the piston top 4 through the cooling oil inlet 2 to cool the internal piston oil cavity 8, is discharged through the backflow orifice plate 5 and the oil return hole 6 on the other side of the piston body 1 after oscillation cooling, and can be conveniently and rapidly cooled and flow through the backflow orifice plate 5, so that the characteristic that the piston is prevented from being damaged in the cylinder diameter of 350mm is avoided
Further, as shown in fig. 1, the top of the piston top 4 is arc-shaped, and the arc-shaped piston top 4 is convenient for fuel atomization and combustion, so that the oil consumption of the diesel engine is reduced.
Furthermore, as shown in fig. 1, the positions of the blind plate 3 and the return orifice plate 5 are symmetrical, so that the blind plate 3 and the return orifice plate 5 are symmetrically installed, and thus the stress on the two ends of the piston body 1 is uniform.
Further, as shown in fig. 1, the cooling oil inlet 2 is made of iron, so that the cooling oil inlet 2 is made of iron, which has high robustness and can prevent the cooling oil inlet 2 from being damaged during use.
Furthermore, as shown in fig. 1, three piston rings are further installed inside the piston top 4, so that the distance between the gas ring and the oil ring is relatively large, and the temperature conducted above the piston can be effectively reduced.
Further, as shown in fig. 1, the piston body 1 is of an integral type nodular cast iron structure, by which the service life of the piston body 1 can be increased.
Further, as shown in fig. 2, the number of the oil return holes 6 is two, by which when one of the oil return holes 6 is damaged, the other can still be used normally.
The utility model discloses a theory of operation is: the utility model discloses at the in-process that uses, piston body 1 is the integral nodular cast iron piston of bucket formula, and lubricating oil gets into piston top 4 through cooling oil import 2 and cools off inside piston oil pocket 8, and after the vibration cooling, through the oil gallery 6 discharge of backward flow orifice plate 5 and piston body 1 opposite side, can be convenient for piston body 1 quick cooling and can flow fast through like this, avoid the characteristics of damaging in the piston 350mm bore.
The present invention has been described in detail with reference to the embodiments shown in the drawings, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.
Claims (7)
1. The utility model provides a 350mm cylinder diameter medium speed high power piston, its characterized in that, includes the piston body, piston skirt portion is installed to the inside intermediate position department of piston body, the cooling oil import is installed to piston skirt portion's inside intermediate position department, the blind plate is installed to the top of cooling oil import, the backward flow orifice plate is installed to one side of blind plate, the blind plate with the piston top is all installed at the top of backward flow orifice plate, piston cavity has been seted up to the inside of piston top, just the blind plate with the backward flow orifice plate is located the both sides of piston cavity, the oil gallery is still installed to the opposite side of piston body.
2. The piston of claim 1, wherein said piston crown is curved and has a cylinder diameter of 350 mm.
3. A 350mm bore diameter medium speed high power piston according to claim 1 wherein said blind plate and said return orifice plate are symmetrically positioned.
4. A 350mm bore diameter medium speed high power piston as claimed in claim 1 wherein said cooling oil inlet is an iron member.
5. A 350mm bore diameter medium speed high power piston as claimed in claim 1 wherein said piston crown is internally further fitted with three piston rings.
6. The piston of claim 1, wherein said piston body is of unitary ductile iron construction.
7. The 350mm bore diameter medium speed high power piston of claim 1, wherein said oil return holes are two in number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121142099.0U CN214787732U (en) | 2021-05-26 | 2021-05-26 | 350mm cylinder diameter medium-speed high-power piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121142099.0U CN214787732U (en) | 2021-05-26 | 2021-05-26 | 350mm cylinder diameter medium-speed high-power piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214787732U true CN214787732U (en) | 2021-11-19 |
Family
ID=78697577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121142099.0U Active CN214787732U (en) | 2021-05-26 | 2021-05-26 | 350mm cylinder diameter medium-speed high-power piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214787732U (en) |
-
2021
- 2021-05-26 CN CN202121142099.0U patent/CN214787732U/en active Active
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