CN211500855U - Fuel injector sealing structure - Google Patents
Fuel injector sealing structure Download PDFInfo
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- CN211500855U CN211500855U CN201922361704.2U CN201922361704U CN211500855U CN 211500855 U CN211500855 U CN 211500855U CN 201922361704 U CN201922361704 U CN 201922361704U CN 211500855 U CN211500855 U CN 211500855U
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- gasket
- fuel injector
- sealing shell
- sealing
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Abstract
The utility model relates to a fuel injector sealing structure, which comprises a fuel injector assembly extending out of a cylinder head cover, wherein a combined sealing shell, a gasket and a pipe joint are arranged on the fuel injector assembly; the combined sealing shell comprises a left sealing shell and a right sealing shell, and the left sealing shell and the right sealing shell are fixed through a combined bolt; a gasket is arranged between the left sealing shell and the right sealing shell, and comprises a left gasket and a right gasket; the combination seal housing, gasket and tube fitting cooperate to seal against the surface of the fuel injector assembly. The utility model discloses relative development cost is lower, and the assembly is simple, is applicable to the complicated appearance of sprayer.
Description
Technical Field
The utility model relates to a sprayer seal structure belongs to the sealed technical field of sprayer.
Background
With the upgrade of products, the fuel system of the internal combustion engine is gradually changed from a mechanical type to an electric control type, the appearance of a fuel injector is greatly changed, and although related parts can be redesigned, the development of the fuel injector is more in parts, higher in cost and longer in period. In order to meet the market demand and reduce the product cost as much as possible, when upgrading and updating, enterprises can reduce the cost consumption brought by design and development as much as possible, and the structure of the original product is properly changed to meet various requirements, so that a large number of special structures are correspondingly generated. The sealing structure for the fuel injector is also an important technical component of the fuel injector, so that the sealing structure for the fuel injector needs to be developed.
Disclosure of Invention
An object of the utility model is to overcome exist among the prior art not enough, provide a sprayer seal structure, its relative development cost is lower, and the assembly is simple, is applicable to the complicated appearance of sprayer.
According to the utility model provides a technical scheme: a fuel injector sealing structure comprises a fuel injector assembly extending out of a cylinder head cover, wherein a combined sealing shell, a gasket and a pipe joint are arranged on the fuel injector assembly; the combined sealing shell comprises a left sealing shell and a right sealing shell, and the left sealing shell and the right sealing shell are fixed through a combined bolt; a gasket is arranged between the left sealing shell and the right sealing shell, and comprises a left gasket and a right gasket; the combination seal housing, gasket and tube fitting cooperate to seal against the surface of the fuel injector assembly.
Further, the framework of the combined sealing shell is made of cast aluminum or cast steel or engineering plastics.
Further, the gasket is made of rubber or vulcanized rubber, and the gasket is formed or vulcanized and adhered to the inner surface of the combined sealing shell.
Further, the sealing end of the pipe joint is in a round pipe shape.
Furthermore, a pipe joint is installed on a high-pressure oil pipe of the oil sprayer assembly, and the left gasket and the right gasket tightly hold the cylindrical surface of the high-pressure oil pipe to realize sealing.
Further, a pipe clamp is arranged on a low-pressure oil pipe of the oil sprayer assembly to realize sealing.
Furthermore, the bottom of the combined sealing shell is fixed on the air outlet cylinder cover through fastening bolts, and a gasket is arranged between the combined sealing shell and the air outlet cylinder cover.
Compared with the prior art, the utility model, have following advantage:
1. the oil sprayer is relatively low in development cost, simple in assembly and suitable for complex shapes of oil sprayers.
2. The installation and the dismantlement are convenient, and sealed effectual.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a cross-sectional view of fig. 1.
Description of reference numerals: the oil-gas well pump comprises a 1-combined sealing shell, a 1 a-left sealing shell, a 1 b-right sealing shell, a 2-gasket, a 2 a-left gasket, a 2 b-right gasket, a 3-pipe joint, a 4 a-combined bolt, a 4 b-fastening bolt, a 5-pipe clamp, a 6-oil injector assembly, a 7-high-pressure oil pipe, an 8-air cylinder cover and a 9-low-pressure oil pipe.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, a fuel injector sealing structure comprises a fuel injector assembly 6 extending out of a cylinder head cover 8, wherein a combined sealing shell 1, a gasket 2 and a pipe joint 3 are arranged on the fuel injector assembly 6; the combined sealing shell 1 comprises a left sealing shell 1a and a right sealing shell 1b, the two independent parts are arranged before assembly, the left sealing shell 1a and the right sealing shell 1b are combined left and right during assembly, and the left sealing shell 1a and the right sealing shell 1b are fixed through a combined bolt 4 a; a gasket 2 is arranged between the left sealing shell 1a and the right sealing shell 1b, the gasket 2 comprises a left gasket 2a and a right gasket 2b, and the two independent parts are arranged before assembly; the combination seal housing 1, the gasket 2 and the pipe joint 3 cooperate to seal the surface of the fuel injector assembly 6. The outer wall of the oil sprayer assembly 6, the high-pressure oil pipe joint, the cylinder cover hole and the oil sprayer with the pipe joint are sealed.
The framework of the combined sealing shell 1 is made of cast aluminum or cast steel or engineering plastics.
The gasket 2 is made of rubber or vulcanized rubber, and the gasket 2 is singly molded or vulcanized and adhered to the inner surface of the combined sealing shell 1.
The sealing end of the pipe joint 3 is in a round pipe shape. The high-pressure oil pipe 7 of the oil sprayer assembly 6 is provided with the pipe joint 3, and the left gasket 2a and the right gasket 2b tightly hold the cylindrical surface of the high-pressure oil pipe 7 to realize sealing. The utility model discloses well union 3 sealed end is the cylinder, embolias high pressure fuel pipe 7 earlier and screws up during the assembly, is held tightly by liner 2 again to reach sealed purpose.
And a pipe clamp 5 is arranged on a low-pressure oil pipe 9 of the oil sprayer assembly 6 to realize sealing. The outer wall gasket 2 of the oil injector assembly 6 of the utility model is held tightly to achieve the sealing purpose; the low-pressure oil pipe 9 is sleeved on the tubular part of the right gasket 2b from the pipe joint 3 and is clamped by the pipe clamp 5 to achieve the sealing purpose.
The bottom of the combined sealing shell 1 is fixed on the cylinder outlet cover 8 through fastening bolts 4b, and a gasket 2 is arranged between the combined sealing shell 1 and the cylinder outlet cover 8. The utility model discloses well assembly process screws up 2 fastening bolt 4b at last and compresses tightly combination seal shell 1, through extrudeing liner 2 between its and the cylinder head cover 8 to reach the purpose in the hole on the sealed cylinder head cover.
The utility model discloses well combination sealed shell 1, liner 2 and the used material of coupling 3 are ordinary material, and manufacturing process is present mature technology, and the cost is lower.
It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (7)
1. A fuel injector sealing structure comprises a fuel injector assembly (6) extending out of a cylinder head cover (8), and is characterized in that a combined sealing shell (1), a gasket (2) and a pipe joint (3) are mounted on the fuel injector assembly (6); the combined sealing shell (1) comprises a left sealing shell (1 a) and a right sealing shell (1 b), and the left sealing shell (1 a) and the right sealing shell (1 b) are fixed through a combined bolt (4 a); a gasket (2) is arranged between the left sealing shell (1 a) and the right sealing shell (1 b), and the gasket (2) comprises a left gasket (2 a) and a right gasket (2 b); the combined sealing shell (1), the gasket (2) and the pipe joint (3) are matched to seal the surface of the fuel injector assembly (6).
2. The fuel injector sealing structure according to claim 1, characterized in that the skeleton of the combined sealing case (1) is made of cast aluminum or cast steel or engineering plastic.
3. The fuel injector sealing structure according to claim 1, characterized in that the gasket (2) is made of rubber or vulcanized rubber, and the gasket (2) is separately molded or vulcanized and adhered to the inner surface of the combined sealing shell (1).
4. The fuel injector sealing structure according to claim 1, characterized in that the sealing end of the pipe joint (3) is in a circular pipe shape.
5. The fuel injector sealing structure according to claim 1, characterized in that a pipe joint (3) is mounted on a high-pressure fuel pipe (7) of the fuel injector assembly (6), and the left gasket (2 a) and the right gasket (2 b) clamp against a cylindrical surface of the high-pressure fuel pipe (7) to achieve sealing.
6. The fuel injector sealing structure according to claim 1, characterized in that a pipe clamp (5) is provided on a low pressure fuel pipe (9) of the fuel injector assembly (6) to achieve sealing.
7. The fuel injector sealing structure according to claim 1, characterized in that the bottom of the combined sealing shell (1) is fixed on the outlet cylinder head cover (8) through fastening bolts (4 b), and a gasket (2) is arranged between the combined sealing shell (1) and the outlet cylinder head cover (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922361704.2U CN211500855U (en) | 2019-12-24 | 2019-12-24 | Fuel injector sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922361704.2U CN211500855U (en) | 2019-12-24 | 2019-12-24 | Fuel injector sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211500855U true CN211500855U (en) | 2020-09-15 |
Family
ID=72419439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922361704.2U Active CN211500855U (en) | 2019-12-24 | 2019-12-24 | Fuel injector sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211500855U (en) |
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2019
- 2019-12-24 CN CN201922361704.2U patent/CN211500855U/en active Active
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