CN217682009U - Lubricating oil sealing structure of diesel engine cylinder head cover - Google Patents
Lubricating oil sealing structure of diesel engine cylinder head cover Download PDFInfo
- Publication number
- CN217682009U CN217682009U CN202221740045.9U CN202221740045U CN217682009U CN 217682009 U CN217682009 U CN 217682009U CN 202221740045 U CN202221740045 U CN 202221740045U CN 217682009 U CN217682009 U CN 217682009U
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- Prior art keywords
- cylinder head
- head cover
- cover
- cylinder
- sealing
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- 238000007789 sealing Methods 0.000 title claims abstract description 57
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 31
- 239000000945 filler Substances 0.000 claims abstract description 18
- 239000003921 oil Substances 0.000 claims abstract description 18
- 239000010705 motor oil Substances 0.000 claims abstract description 8
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000741 silica gel Substances 0.000 claims description 8
- 229910002027 silica gel Inorganic materials 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims 2
- 239000010721 machine oil Substances 0.000 abstract description 5
- 239000010710 diesel engine oil Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a diesel engine cylinder head cover's lubricating oil seal structure, include: the cylinder cover comprises a cylinder body, a cylinder cover, a first sealing filler, a plurality of reinforcing ribs, an oil sprayer hole, an oil adding port and an oil-gas separator mounting hole. A cylinder head is arranged above the cylinder block. The bottom sealing cover of the cylinder head cover is arranged on the cylinder head, and a first groove is formed in the periphery of the bottom of the cylinder head cover. The first sealing filler is filled in the first groove, so that the cylinder cover is fixedly connected with the peripheral contact surface of the cylinder cover in a sealing manner. The reinforcing ribs are respectively arranged at the front end and the rear end of the cylinder head cover. The oil injector hole is arranged on the cylinder cover and used for installing and fixing the oil injector. The engine oil feeding port is arranged on the cylinder cover. And the oil-gas separator mounting hole is formed in the cylinder head cover body. Therefore, the utility model discloses a diesel engine cylinder head cover's lubricating oil seal structure, simple structure is reasonable, and is sealed effectual, has avoided the problem that cylinder head cover machine oil leaked.
Description
Technical Field
The utility model relates to a technical field of internal-combustion engine especially relates to a lubricating oil seal structure of diesel engine cylinder head cover.
Background
The effective sealing of the diesel engine oil is one of the preconditions for ensuring the efficient operation of the diesel engine oil, the use of lubricating oil must consider the sealing requirement, and the sealing scheme commonly adopted at present has the modes of an O-shaped ring, a sealing rubber gasket, interference and the like.
The cylinder cover is a cover cap of a sealed air distribution mechanism on the engine cylinder cover, when the engine works, the inner cavity of the engine is filled with oil gas containing atomized lubricating oil and liquid lubricating oil for splash lubrication of moving parts, and the lubricating oil and the oil gas must be completely sealed. Most of the existing cylinder head covers are annular plane belts, sealing glue is generally coated on sealing belts, or non-asbestos plane gaskets are adopted, or sealing forms such as sealing rubber strips are adopted, the sealing effect is poor, and engine oil leaks near a cylinder head cover oil sprayer in the normal rotation process of a lubricating camshaft.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lubricating oil seal structure of diesel engine cylinder head cover, its simple structure is reasonable, and is sealed effectual, has avoided the problem that cylinder head cover machine oil leaked.
In order to achieve the above object, the utility model provides a diesel engine cylinder head cover's lubricating oil seal structure, include: the cylinder cover comprises a cylinder body, a cylinder cover, a first sealing filler, a plurality of reinforcing ribs, an oil sprayer hole, an oil adding port and an oil-gas separator mounting hole. A cylinder head is arranged above the cylinder block. The bottom sealing cover of the cylinder head cover is arranged on the cylinder head, and a first groove is formed in the periphery of the bottom of the cylinder head cover. The first sealing filler is filled in the first groove, so that the cylinder cover is fixedly connected with the peripheral contact surface of the cylinder cover in a sealing manner. The reinforcing ribs are respectively arranged at the front end and the rear end of the cylinder head cover. The oil injector hole is arranged on the cylinder cover and used for installing and fixing the oil injector. The engine oil feeding port is arranged on the cylinder cover. And the oil-gas separator mounting hole is formed in the cylinder head cover body.
In an embodiment of the present invention, at least one second groove is disposed in a middle position of a bottom of the cylinder head cover.
The utility model discloses an in an embodiment, diesel engine cylinder head cover's lubricating oil seal structure still includes the sealed filler of second, fills in the second slot to make the cylinder head and the sealed fixed connection of cylinder head cover's central contact surface.
In one embodiment of the present invention, the first sealing filler is anaerobic adhesive or silica gel.
In an embodiment of the present invention, the second sealing filler is anaerobic adhesive or silica gel.
The utility model discloses an among the embodiment, diesel engine cylinder head cover's lubricating oil seal structure still includes a plurality of locking bolts, and the cylinder head cover is fixed in on the cylinder head through a plurality of locking bolt locks.
In an embodiment of the present invention, an arched elastic gasket, a flat gasket, and a sealing ring are sequentially disposed between the locking bolt and the cylinder head.
Compared with the prior art, according to the utility model discloses a lubricating oil seal structure of diesel engine cylinder head cover, simple structure is reasonable, and is sealed effectual, has avoided the problem that cylinder head cover machine oil leaked.
Drawings
Fig. 1 is a schematic cross-sectional structural view of a lubricating oil sealing structure of a cylinder head cover of a diesel engine according to an embodiment of the present invention;
fig. 2 is a schematic side view of a cylinder head cover of a lubricating oil sealing structure of a diesel engine cylinder head cover according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a prior art grooveless cylinder head cover;
fig. 4 is a schematic bottom view of a cylinder head cover of a lubricating oil sealing structure of a diesel engine cylinder head cover according to an embodiment of the present invention.
Fig. 5 is a schematic bottom view of a cylinder head cover with grooves of a lubricating oil sealing structure of a diesel engine cylinder head cover according to an embodiment of the present invention.
Description of the main reference numbers:
1-cylinder block, 2-cylinder head cover, 3-cylinder head, 4-first groove, 5-oil sprayer, 6-second groove and 7-locking bolt.
Detailed Description
The following detailed description of the present invention is provided with reference to the accompanying drawings, but it should be understood that the scope of the invention is not limited by the detailed description.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations such as "comprises" or "comprising", etc., will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Fig. 1 is a schematic cross-sectional structural view of a lubricating oil sealing structure of a cylinder head cover of a diesel engine according to an embodiment of the present invention. Fig. 2 is a schematic side view of a cylinder head cover of a lubricating oil sealing structure of a diesel engine cylinder head cover according to an embodiment of the present invention. Fig. 3 is a schematic structural view of a conventional grooveless cylinder head cover. Fig. 4 is a schematic bottom view of a lubricating oil sealing structure of a cylinder head cover of a diesel engine according to an embodiment of the present invention. Fig. 5 is a schematic bottom view of a cylinder head cover with grooves of a lubricating oil sealing structure of a diesel engine cylinder head cover according to an embodiment of the present invention.
As shown in fig. 1 to 5, a lubricating oil sealing structure of a cylinder head cover of a diesel engine according to a preferred embodiment of the present invention includes: the cylinder cover comprises a cylinder body 1, a cylinder cover 2, first sealing filler, a plurality of reinforcing ribs, 5 holes of an oil injector, an oil adding port and an oil-gas separator mounting hole. The cylinder block 1 has a cylinder head 3 above. The bottom sealing cover of the cylinder head cover 2 is arranged on the cylinder cover 3, and a first groove 4 is formed around the bottom of the cylinder head cover 2. The first sealing filler is filled in the first groove 4, so that the cylinder head 3 is fixedly connected with the peripheral contact surface of the cylinder head cover 2 in a sealing manner. The plurality of reinforcing ribs are respectively arranged at the front end and the rear end of the cylinder head cover 2. The hole of the oil injector 5 is arranged on the cylinder head cover 2, and the hole of the oil injector 5 is used for installing and fixing the oil injector 5. The engine oil feeding port is arranged on the cylinder head cover 2. And the oil-gas separator mounting hole is arranged on the cylinder head cover 2 body.
In an embodiment of the present invention, at least one second groove 6 is disposed at a bottom middle position of the cylinder head cover 2.
The utility model discloses an in one embodiment, diesel engine cylinder head cover's lubricating oil seal structure still includes the sealed filler of second, fills in second slot 6 to make cylinder head 3 and cylinder head cover 2's the sealed fixed connection of center contact surface.
In one embodiment of the present invention, the first sealing filler is anaerobic adhesive or silica gel.
In an embodiment of the present invention, the second sealing filler is anaerobic adhesive or silica gel.
The utility model discloses an in one embodiment, diesel engine cylinder head cover's lubricating oil seal structure still includes a plurality of locking bolt 7, and cylinder head cover 2 is fixed in on cylinder head 3 through a plurality of locking bolt 7 lockings.
In an embodiment of the present invention, an arch-shaped elastic gasket, a flat gasket, and a sealing ring are sequentially disposed between the locking bolt 7 and the cylinder head 3.
Therefore, the utility model discloses a diesel engine cylinder head cover's lubricating oil seal structure mainly includes cylinder head 3, cylinder head cover 2, cylinder block 1, lock nut and sprayer 5, and its theory of operation as follows: the chemical energy part of diesel engine fuel burning is converted into mechanical energy to push the piston to move up and down, the piston drives the crankshaft to rotate through the connecting rod, the crankshaft drives the camshaft to realize the rotary motion through the gear or chain transmission, the camshaft realizes the opening and closing of the air inlet and outlet valve through the cam mechanism, the camshaft needs engine oil lubrication to reduce mechanical abrasion in the high-speed operation process, so the sealing performance of the cylinder head cover 2 is an important condition for ensuring the normal operation of the camshaft. The sealing contact surface of the engine oil of the cylinder head cover 2 and the cylinder head 3 is not on the same plane, and machining errors exist inevitably, so that the sealing contact surface cannot be completely tightly attached to the cylinder head 3, and certain gaps exist between the cylinder head 3 and the cylinder head cover 2 during installation, and engine oil leakage is possibly caused. And the utility model discloses a cylinder head cover 2 has first slot 4 and second slot 6, when installation cylinder head cover 2, at the first sealed filler of first slot 4 and the sealed filler of second of 6 the inside spraying of second slot (anaerobism glue or silica gel), then uses locking bolt 7 to be connected with cylinder head 3, and the clearance of sealed face is filled to anaerobism glue or silica gel to guarantee cylinder head 3 and cylinder head cover 2's leakproofness, effectively prevented the leakage of machine oil. And the locking bolt 7 is sequentially sleeved with an arched elastic gasket, a flat gasket and a sealing ring, so that the sealing property is further improved.
In a word, the utility model discloses a lubricating oil seal structure of diesel engine cylinder head cover, simple structure is reasonable, and is sealed effectual, has avoided the problem that 2 machine oil of cylinder head cover leaked.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (7)
1. A lubricating oil sealing structure of a diesel engine cylinder head cover is characterized by comprising:
a cylinder block having a cylinder head above the cylinder block;
the bottom sealing cover of the cylinder head cover is arranged on the cylinder cover, and a first groove is formed in the periphery of the bottom of the cylinder head cover;
the first sealing filler is filled in the first groove, so that the cylinder cover is fixedly connected with the peripheral contact surface of the cylinder cover in a sealing way;
the reinforcing ribs are respectively arranged at the front end and the rear end of the cylinder head cover;
the fuel injector hole is formed in the cylinder cover and used for installing and fixing a fuel injector;
the engine oil feeding port is formed in the cylinder cover; and
and the oil-gas separator mounting hole is formed in the cylinder head cover body.
2. The lubricating oil sealing structure of the diesel engine cylinder head cover according to claim 1, characterized in that at least one second groove is formed in the middle of the bottom of the cylinder head cover.
3. The diesel cylinder head cover grease sealing structure according to claim 2, further comprising a second sealing filler filled in the second groove, thereby sealingly and fixedly connecting the cylinder head to the center contact surface of the cylinder head cover.
4. The diesel engine cylinder head cover lubrication oil sealing structure of claim 1, wherein the first sealing filler is anaerobic glue or silica gel.
5. The diesel engine cylinder head cover lubricating oil sealing structure of claim 3, wherein the second sealing filler is anaerobic adhesive or silica gel.
6. The diesel cylinder head cover grease sealing structure of claim 1, further comprising a plurality of lock bolts by which the cylinder head cover is locked and fastened to the cylinder head.
7. The lubricating oil sealing structure of the diesel engine cylinder head cover according to claim 6, characterized in that an arched elastic gasket, a flat gasket and a sealing ring are arranged between the locking bolt and the cylinder head in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221740045.9U CN217682009U (en) | 2022-07-07 | 2022-07-07 | Lubricating oil sealing structure of diesel engine cylinder head cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221740045.9U CN217682009U (en) | 2022-07-07 | 2022-07-07 | Lubricating oil sealing structure of diesel engine cylinder head cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217682009U true CN217682009U (en) | 2022-10-28 |
Family
ID=83715062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221740045.9U Active CN217682009U (en) | 2022-07-07 | 2022-07-07 | Lubricating oil sealing structure of diesel engine cylinder head cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217682009U (en) |
-
2022
- 2022-07-07 CN CN202221740045.9U patent/CN217682009U/en active Active
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| GR01 | Patent grant |