CN210564794U - Cylinder head cover assembly for engine - Google Patents
Cylinder head cover assembly for engine Download PDFInfo
- Publication number
- CN210564794U CN210564794U CN201920909578.7U CN201920909578U CN210564794U CN 210564794 U CN210564794 U CN 210564794U CN 201920909578 U CN201920909578 U CN 201920909578U CN 210564794 U CN210564794 U CN 210564794U
- Authority
- CN
- China
- Prior art keywords
- cylinder head
- head cover
- cover
- camshaft
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses cylinder head cover assembly for engine, including cylinder head cover and camshaft cover, the cylinder head cover bottom surface is the plane, cylinder head cover bottom surface upwards sunken is equipped with the sealing washer mounting groove that is located same level, install the cylinder head cover sealing washer at same level in the sealing washer mounting groove, camshaft cover upper end is provided with the cylinder head cover fitting surface of mutually supporting with the cylinder head cover bottom surface, one of them camshaft hole one end outside of camshaft cover is integrated have with the camshaft cover even vacuum pump shaft lid as an organic whole, another camshaft hole one end outside of camshaft cover is integrated have with the camshaft cover even high pressure oil pump seat axle cap as an organic whole, the cylinder head cover assembly is in camshaft cover upper end, the cylinder head cover fitting surface of cylinder head cover bottom surface and camshaft cover upper end docks each other. The utility model discloses change two arc surfaces into planar seal, save artifical rubber coated cost, thoroughly solved cylinder head cover oil leak problem.
Description
Technical Field
The utility model relates to an auto-parts, in particular to cylinder head cover assembly for engine.
Background
The basic function of an engine cylinder head cover is to cover and seal the cylinder head, keeping the engine oil inside, while keeping contaminants out. The existing cylinder head cover is generally made of plastic, is low in weight and cost and is widely applied, but the cylinder head cover made of plastic is easily affected by expansion and contraction, so that deformation occurs, and meanwhile, the oil leakage problem of an engine is frequent due to the fact that the structural design of the cylinder head cover is unreasonable and the sealing ring is difficult to compensate.
The joint surfaces of the side edge of the rear camshaft hole of the existing cylinder head cover assembly (shown in figure 1) and the shaft covers of the high-pressure oil pump seat and the vacuum pump are arc surfaces, the joint surface of the bottom surface of the cylinder head cover assembly and the cylinder cover is a plane, four sharp corners are formed at the joint of the arc surfaces and the plane, the four sharp corners are also formed at the same position of a sealing ring (shown in figures 2 and 3), and the sealing ring of the cylinder head cover at the arc surface is fixed on the cylinder cover by two flanges. Reference numerals in fig. 1 to 3: 1-cylinder cover assembly, 2-vacuum pump shaft cover joint surface, 3-high pressure oil pump base shaft cover joint surface, 4-sealing ring, 5-sharp corner and 6-flange. The prior art has the following defects: in the working process of the engine, oil leakage easily occurs at sharp corners at four positions of a sealing ring of the cylinder head cover assembly. In order to avoid oil leakage, sealing glue is generally coated at sharp corners at four positions before the cylinder head cover assembly is installed, the sealing glue becomes hard after solidification, the sealing ring belongs to a soft material, the sealing ring and the sealing ring are not firmly adhered, and the oil leakage phenomenon still can occur. In addition, the sealing ring is fixed by two flanges, so that the sealing ring is easy to fall off.
Disclosure of Invention
The utility model aims at the defect that above-mentioned prior art exists, provide one kind can change the two circular arc surfaces of cylinder head cover assembly rear end into planar seal, save artifical rubber coated cost, thoroughly solved cylinder head cover for engine cylinder head cover assembly of cylinder head cover oil leak problem.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: the utility model provides a cylinder head cover assembly for engine, including cylinder head cover and camshaft cover, the cylinder head cover bottom surface is the plane, cylinder head cover bottom surface upwards caves in and is equipped with the sealing washer mounting groove that is located same level, install the cylinder head cover sealing washer at same level in the sealing washer mounting groove, camshaft cover upper end is provided with the cylinder head cover fitting surface of mutually supporting with the cylinder head cover bottom surface, the one of them camshaft hole one end outside of camshaft cover is integrated has the vacuum pump shaft lid that links as an organic whole with the camshaft cover, another camshaft hole one end outside of camshaft cover is integrated has the high pressure oil pump seat shaft lid that links as an organic whole with the camshaft cover, the cylinder head cover assembly is in camshaft cover upper end, the cylinder head cover fitting surface of cylinder head cover bottom surface and camshaft cover upper end.
The utility model discloses a further technical scheme is: the main part both sides of cylinder head cover sealing washer have evenly arranged can prevent that cylinder head cover sealing washer breaks away from the bump of sealing washer mounting groove.
The utility model discloses cylinder head cover assembly for engine has following beneficial effect: the cylinder head cover assembly is split into the cylinder head cover and the camshaft cover, the bottom surface of the cylinder head cover after splitting is a plane, the camshaft cover and a high-pressure oil pump base shaft cover are integrated, a sealing groove in the bottom surface of the cylinder head cover is located on the same plane, a cylinder head cover sealing ring is also located on the same plane, after the cylinder head cover is assembled, the cylinder head cover sealing ring in contact with the camshaft cover is located on the same plane, the problem of forming sharp corners does not exist, in addition, the whole compression ratio and the filling rate of the cylinder head cover sealing ring are the same, and the requirements are met, so that the problem of oil leakage caused by the influence of thermal expansion and cold contraction of the existing cylinder head cover assembly is thoroughly solved, and the problem that the cylinder head cover sealing ring of the cylinder head cover falls off in the transportation process or in.
The cylinder head cover assembly for an engine according to the present invention will be further described with reference to the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic illustration of a cylinder head cover assembly for a prior art engine;
FIG. 2 is a front view of a prior art gasket fitted to the cylinder head cover of the engine of FIG. 1;
FIG. 3 is a partial top view of the seal ring shown in FIG. 2;
FIG. 4 is a schematic structural view of a cylinder head cover assembly for an engine according to the present invention;
FIG. 5 is a schematic view of a cylinder head cover of the cylinder head cover assembly for an engine according to the present invention;
FIG. 6 is a schematic structural view of a camshaft cover of a cylinder head cover assembly for an engine according to the present invention;
FIG. 7 is a bottom view of the cylinder head cover shown in FIG. 5;
fig. 8 is a schematic structural view of a cylinder head cover seal ring of the cylinder head cover assembly for the engine of the present invention;
the reference numbers illustrate: 1-cylinder head cover assembly, 2-vacuum pump shaft cover combination surface, 3-high pressure oil pump base shaft cover combination surface, 4-sealing ring, 5-sharp corner, 6-flange, 7-cylinder head cover, 8-camshaft cover, 9-cylinder head cover matching surface, 10-cylinder head cover bottom surface, 11-vacuum pump shaft cover, 12-high pressure oil pump base shaft cover, 13-sealing ring installation groove, 14-cylinder head cover sealing ring, and 15-salient point.
Detailed Description
As shown in fig. 4 to 8, the utility model discloses cylinder head cover assembly for engine, including cylinder head cover 7 and camshaft cover 8, cylinder head cover 7 bottom surface is the plane, and cylinder head cover 7 bottom surface is exactly cylinder head cover and camshaft cover composition surface, and cylinder head cover 7 bottom surface undercut is equipped with the sealing washer mounting groove 13 that is located same level, installs cylinder head cover sealing washer 14 at same level in sealing washer mounting groove 13, and cylinder head cover sealing washer 14's main part both sides have evenly arranged can prevent that cylinder head cover sealing washer 14 from breaking away from bump 15 of sealing washer mounting groove 13. The upper end of the camshaft cover 8 is provided with a cylinder head cover matching surface 9 matched with a cylinder head cover bottom surface 10, and a vacuum pump shaft cover 11 integrated with the camshaft cover 8 is integrated at the outer side of one end of one camshaft hole of the camshaft cover 8, namely the vacuum pump shaft cover 11 and the camshaft cover 8 are cast together. And a high-pressure oil pump seat shaft cover 12 connected with the camshaft cover 8 into a whole is integrated at the outer side of one end of the other camshaft hole of the camshaft cover 8, namely the high-pressure oil pump seat shaft cover 12 and the camshaft cover 8 are cast and molded together. The cylinder head cover is assembled on the upper end of the camshaft cover 8, and the bottom surface 10 of the cylinder head cover is butted with a cylinder head cover matching surface 9 on the upper end of the camshaft cover 8.
After the cylinder head cover is assembled, the sealing ring in contact with the camshaft cover 8 is positioned on the same plane, the problem of forming sharp corners does not exist, in addition, the whole compression ratio and the filling rate of the sealing ring are the same, and the requirements are met, so that the oil leakage problem of the cylinder head cover is thoroughly solved. The salient points 15 are uniformly arranged on two sides of the cylinder head cover sealing ring 14, and the salient points 15 can prevent the problem that the cylinder head cover sealing ring 14 is easy to drop in the sealing groove.
The above embodiments are only preferred embodiments of the present invention, the structure of the present invention is not limited to the forms illustrated in the above embodiments, and any modifications, equivalent substitutions and the like made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (2)
1. A cylinder head cover assembly for an engine is characterized by comprising a cylinder head cover (7) and a camshaft cover (8), wherein the bottom surface (10) of the cylinder head cover is a plane, a sealing ring mounting groove (13) which is positioned at the same level is upwards sunken in the bottom surface (10) of the cylinder head cover, a cylinder head cover sealing ring (14) which is positioned at the same level is mounted in the sealing ring mounting groove (13), a cylinder head cover matching surface (9) which is mutually matched with the bottom surface (10) of the cylinder head cover is arranged at the upper end of the camshaft cover (8), a vacuum pump shaft cover (11) which is connected with the camshaft cover (8) into a whole is integrated at the outer side of one end of one camshaft hole of the camshaft cover (8), a high-pressure oil pump base shaft cover (12) which is connected with the camshaft cover (8) into a whole is integrated at the outer side of one end of the other camshaft hole of the camshaft cover, the bottom surface (10) of the cylinder head cover is mutually butted with a matching surface (9) of the cylinder head cover at the upper end of the camshaft cover (8).
2. The cylinder head cover assembly for an engine according to claim 1, wherein the head cover seal ring (14) has protrusions (15) uniformly disposed on both sides of the main body thereof for preventing the head cover seal ring (14) from coming off the seal ring installation groove (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920909578.7U CN210564794U (en) | 2019-06-17 | 2019-06-17 | Cylinder head cover assembly for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920909578.7U CN210564794U (en) | 2019-06-17 | 2019-06-17 | Cylinder head cover assembly for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210564794U true CN210564794U (en) | 2020-05-19 |
Family
ID=70639483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920909578.7U Expired - Fee Related CN210564794U (en) | 2019-06-17 | 2019-06-17 | Cylinder head cover assembly for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210564794U (en) |
-
2019
- 2019-06-17 CN CN201920909578.7U patent/CN210564794U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200519 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |