CN218669603U - High-pressure oil hole sealing system and engine - Google Patents
High-pressure oil hole sealing system and engine Download PDFInfo
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- CN218669603U CN218669603U CN202222789327.4U CN202222789327U CN218669603U CN 218669603 U CN218669603 U CN 218669603U CN 202222789327 U CN202222789327 U CN 202222789327U CN 218669603 U CN218669603 U CN 218669603U
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- gasket
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Abstract
The utility model discloses a high pressure oilhole sealing system and engine relates to engine technical field, has solved the problem that sealed easy inefficacy and positioning between current cylinder cap and the organism is complicated, has improved the life of gasket rubber ring, has reduced the use of assembly spare part, and concrete scheme is as follows: including cylinder cap, organism, cylinder cap gasket and the position sleeve of setting between cylinder cap and organism, the position sleeve is hollow structure, and in the oil duct of organism was inserted to the one end of position sleeve, the other end passed the cylinder cap gasket and inserted the oil duct in order to communicate organism and cylinder cap in the oil duct of cylinder cap.
Description
Technical Field
The utility model belongs to the technical field of the engine technique and specifically relates to a high pressure oilhole sealing system and engine.
Background
The cylinder cover and the engine body are sealed through a rubber ring of a cylinder cover gasket, and high-pressure oil reaches a position needing lubrication through an engine body oil duct, the gasket and the cylinder cover (as shown in figure 1).
The inventor finds that the gasket rubber ring of the cylinder cover gasket fails at low temperature for a long time under low temperature and causes oil leakage phenomenon only by using a cylinder cover gasket sealing mode between the existing cylinder cover and the engine body; when high-pressure oil passes through the gasket, because the diameter of an oil duct at the gasket rubber ring is increased, the pulse generated by the high-pressure oil can impact the gasket rubber ring of the cylinder cover gasket, and the sealing failure can also be caused;
in addition, the positioning of the cylinder cover, the engine body and the cylinder cover gasket is realized by the aid of positioning pins (shown in fig. 2) between the conventional cylinder cover and the engine body, and the assembly process is complex.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a not enough that prior art exists, the utility model aims at providing a high pressure oilhole sealing system and engine, utilize hollow position sleeve with the organism, the oil duct intercommunication of cylinder cap, high-pressure oil is through the organism, the position sleeve reachs the cylinder cap, it is not direct and the contact of cylinder cap gasket, the impact that the gasket rubber ring produced on the high-pressure oil pulse pair cylinder cap gasket has been reduced, avoided the gasket rubber ring to be in the low temperature scene for a long time, and the position sleeve plays the effect of connection location, the use of assembly spare part has been reduced, the problem of sealed easy inefficacy and the assembly location is complicated between current cylinder cap and the organism has been solved.
In order to achieve the above purpose, the present invention is realized by the following technical solution:
in a first aspect, the embodiment of the utility model provides a high pressure oilhole sealing system, including cylinder cap, organism, cylinder head gasket and the position sleeve of setting between cylinder cap and organism, the position sleeve is hollow structure, and in the oil duct of organism was inserted to the one end of position sleeve, the other end passed the cylinder head gasket and inserted the oil duct in order to communicate organism and cylinder cap in the oil duct of cylinder cap.
As a further implementation manner, the positioning sleeve is divided into a large head end and a small head end, the large head end is fixedly connected with the oil duct of the engine body, and the small head end is fixedly connected with the oil duct of the cylinder cover.
As a further implementation mode, a groove is formed in the side wall of the small end along the circumferential direction of the small end, and a rubber sealing ring is fixedly arranged in the groove.
As a further realization, at least one of the grooves is provided.
As a further implementation mode, mounting holes for mounting positioning sleeves are machined in oil passages of the cylinder cover and the engine body.
As a further implementation mode, the positioning sleeve is in interference fit with the mounting holes in the cylinder cover and the engine body.
As a further implementation manner, the diameter of the hollow part of the positioning sleeve is slightly smaller than that of the oil passage on the cylinder cover.
As a further implementation mode, the upper surface of the cylinder cover gasket is fixedly provided with a gasket rubber ring, and the bottom of the cylinder cover is provided with a mounting groove matched with the gasket rubber ring.
As a further implementation manner, a gasket rubber ring is fixedly arranged on the lower surface of the cylinder cover gasket, and a mounting groove matched with the gasket rubber ring is formed in the top of the machine body.
In a second aspect, another embodiment of the present invention provides an engine using the high-pressure oil hole sealing system of the first aspect.
Above-mentioned the utility model has the advantages as follows:
1) The utility model discloses utilize hollow position sleeve with the organism, the oil duct intercommunication of cylinder cap, high-pressure oil is through the organism, the position sleeve reachs the cylinder cap, it is not direct with the contact of cylinder cap gasket, the impact that the gasket rubber ring produced on the high-pressure oil pulse pair cylinder cap gasket has been reduced, and avoided the gasket rubber ring to be in the low temperature scene for a long time, the influence of low temperature to the gasket rubber ring has been reduced, the life of gasket rubber ring has been improved greatly, the oil leak problem of organism faying face has been avoided, and simultaneously, the position sleeve plays the effect of connecting the location, the use of assembling spare part has been reduced, greatly reduced the assembly degree of difficulty, and the assembly efficiency is improved.
2) The utility model discloses be equipped with the recess along its hoop on the lateral wall of position sleeve stub end for rubber seal's installation, accessible rubber seal realizes the sealing between stub end lateral wall and the cylinder cap high-pressure oil duct, has effectively avoided high-pressure oil to reveal the influence to the gasket rubber ring from stub end department, and the gasket rubber ring on still can cooperating the cylinder cap gasket realizes multistage sealed, has improved sealing capacity greatly.
3) The utility model discloses the mounting hole interference fit on position sleeve and cylinder cap, the organism has made things convenient for the installation of position sleeve, and what the position sleeve communicate is the oil duct of cylinder cap and organism, has effectively played the effect of location, can cancel the use of cylinder cap bottom surface locating pin, has reduced the use quantity of spare part, has improved assembly efficiency.
4) The utility model discloses the hollow part diameter of position sleeve slightly be less than with the diameter of cylinder cap oil duct to make the diameter change of high pressure oil duct less, make the high pressure oil pressure that gets into in the cylinder cap oil duct more stable, reduced the pulse.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
FIG. 1 is a schematic view of a sealing structure of a high-pressure oil hole between a cylinder head and a machine body in the prior art;
FIG. 2 is a schematic structural diagram of a prior art cylinder head, a prior art cylinder block, and a prior art cylinder head gasket, which are connected by locating pins;
fig. 3 is a schematic diagram of the overall structure of a high-pressure oil hole sealing system according to one or more embodiments of the present invention;
in the figure: the mutual spacing or size is exaggerated to show the position of each part, and the schematic diagram is only used for illustration;
wherein, 1, a cylinder cover; 2. a cylinder head gasket; 3. a body; 4. a rubber seal ring; 5. a positioning sleeve; 6. positioning pins; 7. an oil passage.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
As introduced in the background art, the existing cylinder cover and the engine body only use the sealing mode of the cylinder cover gasket, and the gasket rubber ring of the cylinder cover gasket fails at low temperature for a long time, so that the oil leakage phenomenon is caused; when high-pressure oil passes through the gasket, because the diameter of an oil duct at the gasket rubber ring is increased, the pulse generated by the high-pressure oil can impact the gasket rubber ring of the cylinder cover gasket, and the sealing failure can also be caused; in addition, need assist the location of realizing cylinder cap, organism and cylinder head gasket through the locating pin between current cylinder cap and the organism, problem that the assembly process is complicated for solving above-mentioned problem, the utility model provides a high pressure oilhole sealing system and engine.
Example 1
The utility model discloses an among the typical embodiment, as shown in FIG. 3, a high pressure oilhole sealing system is proposed, include, cylinder cap 1, cylinder head gasket 2, organism 3 and position sleeve 5, wherein, cylinder head gasket 2 sets up between cylinder cap 1 and organism 3, and position sleeve 5 sets up between cylinder cap 1, cylinder head gasket 2 and organism 3.
Specifically, a gasket rubber ring is fixedly arranged on the upper surface of the cylinder cover gasket 2, a mounting groove for mounting the gasket rubber ring is formed in the bottom of the cylinder cover 1, a gasket rubber ring is also fixedly arranged on the lower surface of the cylinder cover gasket 2, a mounting groove for mounting the gasket rubber ring is formed in the top of the machine body 3, and during assembly, the gasket rubber ring on the cylinder cover gasket 2 is matched with the mounting grooves in the bottom of the cylinder cover 1 and the top of the machine body 3 to realize sealing and prevent high-pressure gas, high-pressure oil and cooling water from leaking out from between the cylinder cover 1 and the cylinder cover gasket 2 and between the machine body 3 and the cylinder cover gasket 2; one end of the positioning sleeve 5 is inserted into the oil duct 7 of the engine body 3, and the other end of the positioning sleeve penetrates through the cylinder cover gasket 2 and is inserted into the oil duct 7 of the cylinder cover 1, so that the oil duct 7 between the engine body 3 and the cylinder cover is connected.
The oil ducts 7 of the cylinder cover 1, the cylinder cover gasket 2 and the engine body 3 are communicated, and the positioning sleeve 5 is installed among the high-pressure oil duct of the cylinder cover 1, the cylinder cover gasket 2 and the high-pressure oil duct of the engine body 3 and used for reducing impact of high-pressure oil pulse on a gasket rubber ring and ensuring the service life of the cylinder cover gasket 2.
Specifically, the locating sleeve 5 is of a cylindrical structure, and the locating sleeve 5 is divided into a large end and a small end, wherein the large end is used for being connected with the high-pressure oil duct of the engine body 3, and the small end is used for being connected with the high-pressure oil duct of the cylinder cover 1.
The lateral wall of the small end of the positioning sleeve 5 is provided with a groove along the circumferential direction thereof for installing the rubber sealing ring 4, so that after the rubber sealing ring 4 is installed in the groove on the lateral wall of the small end of the positioning sleeve 5, the sealing between the lateral wall of the small end and the high-pressure oil duct of the cylinder cover 1 can be realized through the rubber sealing ring 4, the multistage sealing is realized by matching with the gasket rubber ring on the cylinder cover gasket 2, and the sealing capability is greatly improved.
It can be understood that the rubber sealing ring 4 may be provided in one layer or in multiple layers, that is, one groove may be provided, or multiple grooves may be provided along the length direction of the positioning sleeve 5, which may be specifically selected according to actual needs, and is not limited herein.
Two ends of the positioning sleeve 5 are respectively and fixedly arranged in the oil ducts 7 of the cylinder cover 1 and the engine body 3 correspondingly, and the oil duct 7 part at the lower bottom surface of the cylinder cover 1 and the oil duct 7 part at the upper top surface of the engine body 3 are respectively provided with a mounting hole for mounting the positioning sleeve 5.
Specifically, the mounting hole formed in the oil duct 7 at the lower bottom surface of the cylinder head 1 is matched with the small end of the positioning sleeve 5, and the mounting hole formed in the oil duct 7 at the upper top surface of the engine body 3 is matched with the large end of the positioning sleeve 5.
The mounting hole is opened in oil duct 7, to the change of oil duct 7 diameter promptly, can adopt modes such as cutting, polish to carry out the processing of mounting hole, adopts interference fit's assembly methods between the mounting hole on position sleeve 5 and cylinder cap 1, the organism 3.
Because the cylinder cover 1, the cylinder cover gasket 2 and the engine body 3 are connected by the positioning sleeve 5, and the positioning sleeve 5 is communicated with the oil duct 7 of the cylinder cover 1 and the engine body 3, the positioning sleeve 5 effectively plays a positioning role, the positioning pin 6 on the bottom surface of the cylinder cover can be eliminated, the number of parts used is reduced, the assembly difficulty is greatly reduced, and the assembly efficiency is improved.
The positioning sleeve 5 is hollow inside, the hollow part of the positioning sleeve 5 allows high-pressure oil to pass through, and the diameter of the hollow part of the positioning sleeve 5 is slightly smaller than that of the oil duct 7 on the cylinder cover 1, so that the diameter change of the high-pressure oil duct is small, the oil pressure of the high-pressure oil entering the oil duct 7 on the cylinder cover 1 is stable, and pulses are reduced.
Because high-pressure oil reaches the cylinder cover 1 through the engine body 3 and the locating sleeve 5 and does not directly contact with the cylinder cover gasket 2, the impact of high-pressure oil pulses on the gasket rubber ring on the cylinder cover gasket 2 is effectively reduced, meanwhile, the gasket rubber ring is effectively prevented from being in a low-temperature scene for a long time, the influence of low temperature on the gasket rubber ring is reduced, the service life of the gasket rubber ring is greatly prolonged, and the oil leakage problem of the engine body joint surface is avoided.
Example 2
In another typical embodiment of the present invention, an engine is provided, wherein the high-pressure oil hole sealing system described in embodiment 1 is utilized, specifically, the cylinder head gasket 2 is disposed between the cylinder head 1 and the engine body 3, the positioning sleeve 5 is disposed between the cylinder head 1, the cylinder head gasket 2 and the engine body 3, and the gasket rubber ring on the cylinder head gasket 2 is matched with the mounting grooves at the bottom of the cylinder head 1 and at the top of the engine body 3 to realize sealing, so as to prevent high-pressure gas, high-pressure oil and cooling water from leaking out from between the cylinder head 1 and the cylinder head gasket 2 and between the engine body 3 and the cylinder head gasket 2; one end of the positioning sleeve 5 is inserted into the oil duct 7 of the engine body 3, and the other end of the positioning sleeve penetrates through the cylinder cover gasket 2 and is inserted into the oil duct 7 of the cylinder cover 1, so that the oil duct 7 between the engine body 3 and the cylinder cover is connected.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a high pressure oilhole sealing system, its characterized in that includes cylinder cap, organism, sets up cylinder head gasket and the position sleeve between cylinder cap and organism, the position sleeve is hollow structure, and in the oil duct of organism was inserted to the one end of position sleeve, the other end passed the cylinder head gasket and inserted the oil duct in order to communicate organism and cylinder cap in the oil duct of cylinder cap.
2. The high-pressure oil hole sealing system as claimed in claim 1, wherein the locating sleeve is divided into a large end and a small end, the large end is fixedly connected with the oil passage of the engine body, and the small end is fixedly connected with the oil passage of the cylinder cover.
3. The high-pressure oil hole sealing system according to claim 2, wherein a groove is formed in a side wall of the small end in a circumferential direction of the small end, and a rubber packing is fixed in the groove.
4. The high-pressure oil hole sealing system according to claim 3, wherein at least one of the grooves is provided.
5. The high-pressure oil hole sealing system according to claim 1, wherein mounting holes for mounting the positioning sleeves are formed in oil passages of the cylinder cover and the engine body.
6. The high-pressure oil hole sealing system as claimed in claim 5, wherein the locating sleeve is in interference fit with the mounting holes on the cylinder cover and the engine body.
7. The high-pressure oil hole sealing system according to claim 1, wherein the diameter of the hollow portion of the positioning sleeve is slightly smaller than the diameter of the oil passage on the cylinder head.
8. The high-pressure oil hole sealing system according to claim 1, wherein a gasket rubber ring is fixedly arranged on the upper surface of the cylinder head gasket, and a mounting groove matched with the gasket rubber ring is formed in the bottom of the cylinder head.
9. The high-pressure oil hole sealing system according to claim 1, wherein a gasket rubber ring is fixedly arranged on the lower surface of the cylinder head gasket, and a mounting groove matched with the gasket rubber ring is formed in the top of the machine body.
10. An engine characterized by using the high-pressure oil hole sealing system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222789327.4U CN218669603U (en) | 2022-10-21 | 2022-10-21 | High-pressure oil hole sealing system and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222789327.4U CN218669603U (en) | 2022-10-21 | 2022-10-21 | High-pressure oil hole sealing system and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218669603U true CN218669603U (en) | 2023-03-21 |
Family
ID=85564993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222789327.4U Active CN218669603U (en) | 2022-10-21 | 2022-10-21 | High-pressure oil hole sealing system and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218669603U (en) |
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2022
- 2022-10-21 CN CN202222789327.4U patent/CN218669603U/en active Active
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