CN216136829U - Internal buffer type fuel filter - Google Patents
Internal buffer type fuel filter Download PDFInfo
- Publication number
- CN216136829U CN216136829U CN202121826016.XU CN202121826016U CN216136829U CN 216136829 U CN216136829 U CN 216136829U CN 202121826016 U CN202121826016 U CN 202121826016U CN 216136829 U CN216136829 U CN 216136829U
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- China
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- shell
- filter element
- filter
- end cover
- element assembly
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- Filtration Of Liquid (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses an internal buffering type fuel filter, which comprises a shell, a threaded cover plate and a filter element assembly, wherein the filter element assembly consists of an upper end cover, filter paper, a central pipe and a lower end cover, a gasket is arranged between an oil outlet of the threaded cover plate and the upper end cover of the filter element assembly, a supporting spring is arranged between the lower end cover of the filter element assembly and the inner bottom of the shell, and the supporting spring is connected with the inner bottom of the shell through a buffering damping seat. And an outer sealing ring is arranged at the joint of the threaded cover plate and the shell through a fixing plate. And a power-assisted nut is arranged on the outer part of the shell and corresponds to the position of the buffer damping seat. The invention increases the buffering and anti-damage functions to the inner bottom and the outer bottom of the shell, enhances the positioning function, ensures that the filter element component does not shake left and right, and also enhances the sealing performance, thereby ensuring the quality and the service life of the filter.
Description
Technical Field
The invention relates to a filtering facility, in particular to a fuel filter.
Background
At present, a supporting spring in the bottom of a shell of a fuel filter is spiral or wave-shaped, so that the supporting force of a filter element assembly (and a bypass valve assembly) is obvious, but the buffering effect is insufficient to damage the shell, and the risk of left-right shaking of the filter element assembly can exist. And the filter also has the problem of unsatisfactory sealing performance, and the filtering quality and the service life of the filter are influenced.
Disclosure of Invention
The invention aims to overcome the defects and provide an internal buffer type fuel filter which has buffer damping, does not damage a shell and has good sealing property.
The purpose of the invention is realized by the following technical scheme: internal buffering formula fuel filter, including shell, thread cover board, filter element group spare comprises upper end cover, filter paper, center tube, lower end cover, be equipped with the gasket between the oil-out of thread cover board and the upper end cover of filter element group spare, be equipped with supporting spring between the interior bottom of lower end cover of filter element group spare and shell, this supporting spring meets through the interior bottom of buffering damping seat and shell.
And a power-assisted nut is arranged on the outer part of the shell and corresponds to the position of the buffer damping seat. And an outer sealing ring is arranged at the joint of the threaded cover plate and the shell through a fixing plate.
After the structure of the invention is adopted, the matching of the supporting spring and the buffering damping seat thereof and the arrangement of the power-assisted nut increase the buffering and anti-damage effects on the inner bottom and the outer bottom of the shell, the positioning function is enhanced, the filter element component is ensured not to shake left and right, and the sealing performance of the filter element component is enhanced by the arrangement of the gasket and the outer sealing ring, thereby ensuring the quality and the service life of the filter.
Drawings
FIG. 1 is a schematic diagram of an internal buffer fuel filter according to the present invention.
Fig. 2 is a left side view (partial) of fig. 1.
Detailed Description
The invention is described in further detail below with reference to the figures and embodiments.
Referring to fig. 1 and 2, the internal buffering fuel filter of the present invention includes a housing 17, a threaded cover plate 4 (which may be called a screw sealing plate), and a filter element assembly, where the filter element assembly is composed of an upper end cover 7, filter paper 9, a central tube 11, and a lower end cover 12, a gasket 5 is installed between an oil outlet 19 of the threaded cover plate 4 and the upper end cover 7 of the filter element assembly, a support spring 14 (in a spiral or wave shape) is installed between the lower end cover 12 of the filter element assembly and an inner bottom of the housing 17, and the support spring 14 is connected to the inner bottom of the housing 17 through a buffering damping seat 15. The threaded cover plate 4 is provided with an oil inlet 18 and an oil outlet 19 (the fuel flow direction is shown by an arrow in fig. 1).
And a booster nut 16 (in a hexagonal shape) is arranged on the outer part of the shell 17 and at a position corresponding to the position of the buffer damping seat 15 (in a spot welding mode) so as to strengthen the supporting, buffering and anti-damage effects on the inner bottom and the outer bottom of the shell, and meanwhile, the shell is convenient to disassemble and replace. The joint of the threaded cover plate 4 and the shell 17 is provided with an outer sealing ring 1 through a fixing plate 2 to enhance the sealing performance treatment.
Claims (3)
1. Internal buffering formula fuel filter, including shell, thread cover board, filter element group spare, the filter element group spare comprises upper end cover, filter paper, center tube, bottom end cover, its characterized in that: a gasket is arranged between the oil outlet of the threaded cover plate and the upper end cover of the filter element assembly, a supporting spring is arranged between the lower end cover of the filter element assembly and the inner bottom of the shell, and the supporting spring is connected with the inner bottom of the shell through a buffering damping seat.
2. The internally buffered fuel filter of claim 1 wherein: and a power-assisted nut is arranged on the outer part of the shell and corresponds to the position of the buffer damping seat.
3. The internally buffered fuel filter of claim 1 or 2 wherein: and an outer sealing ring is arranged at the joint of the threaded cover plate and the shell through a fixing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121826016.XU CN216136829U (en) | 2021-08-03 | 2021-08-03 | Internal buffer type fuel filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121826016.XU CN216136829U (en) | 2021-08-03 | 2021-08-03 | Internal buffer type fuel filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216136829U true CN216136829U (en) | 2022-03-29 |
Family
ID=80805183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121826016.XU Active CN216136829U (en) | 2021-08-03 | 2021-08-03 | Internal buffer type fuel filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216136829U (en) |
-
2021
- 2021-08-03 CN CN202121826016.XU patent/CN216136829U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |