CN212202312U - Fuel filter with automatic exhaust function - Google Patents
Fuel filter with automatic exhaust function Download PDFInfo
- Publication number
- CN212202312U CN212202312U CN202020920866.5U CN202020920866U CN212202312U CN 212202312 U CN212202312 U CN 212202312U CN 202020920866 U CN202020920866 U CN 202020920866U CN 212202312 U CN212202312 U CN 212202312U
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- filter
- end cover
- central tube
- filter element
- exhaust
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Abstract
A fuel filter with automatic exhaust function comprises a filter shell and a filter element, wherein a filter outer cover is arranged above the filter shell; the filter core of the filter comprises a filter core upper end cover, a filter core lower end cover and a central tube, wherein a filter medium is fixedly arranged on the outer surface of the central tube, the upper end and the lower end of the filter medium are respectively fixedly connected to the surfaces of the filter core upper end cover and the filter core lower end cover through filter core glue, the central tube end cover is arranged at the upper end of the central tube, an exhaust opening is formed in the central tube end cover, an oil outlet channel and two exhaust channels are respectively formed in the central tube, the lower end of the oil outlet channel penetrates through the filter shell to be communicated with the outside. The utility model overcomes prior art's is not enough, and is different to the resistance that the engine inside reaches the engine oil return line through the filter, and wherein to return oil line resistance less to exhaust gas easily.
Description
Technical Field
The utility model relates to a fuel filters technical field, specifically is a fuel filter with self-bleeding function.
Background
When the filter is first used or the filter element is replaced, the filter is usually empty and the interior is filled with air. This air may enter the system downstream with the fuel at engine start-up, thereby affecting engine starting. Therefore, the air needs to be discharged.
The bolt that adds the gassing usefulness on the ordinary filter adopts the filter core fixing base mostly, discharges above-mentioned air through manual, and the operation is more loaded down with trivial details like this to in case the bolt does not screw up still can produce the risk of oil leak.
SUMMERY OF THE UTILITY MODEL
To prior art not enough, the utility model provides a fire oil filter with self-bleeding function, it is different to the resistance that the engine inside reaches the oil return pipeline through the filter, wherein to return oil pipeline resistance less to exhaust gas easily. Meanwhile, the hole of the end cover of the central pipe is small, and fuel oil is prevented from being discharged to a certain extent.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
a fuel filter with an automatic exhaust function comprises a filter shell and a filter element, wherein a filter outer cover is connected above the filter shell through threads, and the filter element is fixedly arranged at the bottom of an inner cavity of the filter shell; the filter core of the filter comprises a filter core upper end cover, a filter core lower end cover and a central tube, wherein the central tube is fixedly installed between the filter core upper end cover and the filter core lower end cover, a filter medium is fixedly installed on the outer surface of the central tube, the upper end and the lower end of the filter medium are respectively fixedly connected to the surfaces of the filter core upper end cover and the filter core lower end cover through filter core glue, the central tube upper end is fixedly installed with the central tube end cover, an exhaust opening is formed in the central tube end cover, an oil outlet channel and two exhaust channels are respectively formed in the central tube, the lower end of the oil outlet channel penetrates through the filter shell to be communicated with the outside, the upper end of the exhaust channel is communicated with the exhaust opening.
Preferably, the filter element lower end cover is fixedly provided with a special-shaped sealing ring, and the filter element of the filter is connected with the filter shell in a sealing way through the special-shaped sealing ring.
Preferably, the surface of the lower end cover of the filter element is provided with an O-shaped sealing ring, and the O-shaped sealing ring is fixedly arranged between the oil outlet channel and the two exhaust channels.
Preferably, the side surface of the central pipe end cover is provided with a thread structure, and the central pipe end cover is movably connected to the upper end of the central pipe through the thread structure.
The utility model provides an oil filter fires with self-bleeding function. The method has the following beneficial effects: the filter element is convenient to operate when being replaced, the resistance from the filter to the inside of an engine and the resistance from the filter to an engine oil return pipeline are different through the exhaust opening arranged at the top of the filter element, and the resistance to the oil return pipeline is smaller, so that gas can be easily exhausted. Meanwhile, the exhaust hole is small, and fuel oil is prevented from being discharged to a certain extent.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the description of the prior art will be briefly described below.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a view showing the structure of the present invention when air is discharged;
FIG. 3 is a view showing the structure of the oil flow inside the present invention;
FIG. 4 is a schematic structural view of a filter element of the middle filter of the present invention;
the reference numbers in the figures illustrate:
1. a filter housing; 2. a filter outer cover; 3. an upper end cover of the filter element; 4. a filter element lower end cover; 5. a central tube; 6. a filter medium; 7. glue for the filter element; 8. a center tube end cap; 9. opening a hole for exhausting; 10. an oil outlet channel; 11. an exhaust passage; 12. a special-shaped sealing ring; 13. an O-shaped sealing ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention will be combined below to clearly and completely describe the technical solutions of the present invention.
As shown in fig. 1 to 4, a fuel filter with an automatic exhaust function comprises a filter housing 1 and a filter element, wherein the filter housing 1 is movably connected with a filter outer cover 2 through a mutually matched thread structure, so that the filter outer cover 2 can be fixed on the filter housing 1 and can be conveniently detached during filter maintenance, the filter element is clamped between the filter housing 1 and the filter outer cover 2, and an oil inlet channel is formed between the filter element and the filter housing 1;
the filter core of the filter comprises a filter core upper end cover 3, a filter core lower end cover 4 and a central tube 5, wherein the central tube 5 is fixedly arranged between the filter core upper end cover 3 and the filter core lower end cover 4, a filter medium 6 is fixedly arranged on the outer surface of the central tube 5, the filter medium 6 surrounds the central tube 5, the upper end and the lower end of the filter medium 6 are respectively and fixedly connected to the surfaces of the filter core upper end cover 3 and the filter core lower end cover 4 through filter core glue 7 and form sealing, so that oil in an oil inlet channel is prevented from entering an oil outlet channel from the two ends of the filter medium 6 without passing through the filter medium 6, and the performance of an;
a central tube end cover 8 is fixedly arranged at the upper end of the central tube 5, and an exhaust opening 9 is formed in the central tube end cover 8, wherein the size of the exhaust opening 9 needs to ensure that air can normally pass through the exhaust opening, and meanwhile, after the air in the filter is exhausted completely, a large amount of oil is not discharged through the opening to cause influence on the performance of an engine;
the central tube 5 is respectively provided with an oil outlet channel 10 and two exhaust channels 11, the oil outlet channel 10 is communicated with the oil inlet channel through a filter medium, the oil inlet channel is communicated with the exhaust channels 11 through exhaust holes 9 on the end cover 8 of the central tube, and the oil outlet channel 10 and the two exhaust channels 11 are independent from each other and do not affect each other. The lower end of the oil outlet channel 10 penetrates through the filter shell 1 to be communicated with the outside, the upper end of the exhaust channel 11 is communicated with the exhaust opening 9, and the lower end of the exhaust channel 11 penetrates through the filter shell 1 to be communicated with the outside.
As can be seen from the structural diagram of air flowing inside the device shown in fig. 2 and the structural diagram of fuel flowing inside the device shown in fig. 3, after the device of the present application is used for the first time or the maintenance and replacement is completed, the engine fuel pump is started to gradually deliver unfiltered fuel into an empty filter through the fuel inlet channel, and at this time, air in the filter is compressed to the upper part of the filter housing 1, enters the exhaust channel in the central tube 5 through the exhaust opening 9 on the central tube end cover 8, and is finally discharged from the inside of the filter; and unfiltered fuel is filtered by the filter medium 6 to form clean fuel, then enters the central tube 5, and is discharged out of the filter through the oil outlet channel 10 on the central tube 5 to enter the interior of the engine.
The utility model discloses a filter is different to the resistance that the engine was inside and the engine returned the oil pipe way, and wherein to returning oil pipe way resistance less to exhaust gas easily. Meanwhile, the exhaust opening 9 on the central pipe end cover 8 is small, so that fuel oil is prevented from being discharged to a certain extent.
The embodiment of the utility model provides an in, fixed mounting has heterotypic sealing washer 12 on the filter core lower end cover 4, and the filter core passes through heterotypic sealing washer 12 and filter shell 1 fixed connection, and heterotypic sealing washer 12 receives certain compression formation sealed simultaneously. The oil in the oil inlet channel can be prevented from entering the oil outlet channel 10 and the two exhaust channels 11 through the special-shaped sealing rings 12.
In the embodiment of the utility model provides an in, 4 surfaces on filter core lower end cover are provided with O type sealing washer 13, and O type sealing washer 13 fixed mounting is between oil outlet channel 10 and two exhaust passage 11. The gas in the two exhaust passages 11 is prevented from entering the oil outlet passage 10 by the O-ring 13, thereby affecting the engine performance.
The embodiment of the utility model provides an in, 8 side surfaces of center tube end cover are provided with the helicitic texture, and center tube end cover 8 passes through helicitic texture swing joint in 5 upper ends of center tube. Can guarantee through helicitic texture that this end cover can firmly fix on the center tube, also be convenient for the dismantlement when the filter is maintained simultaneously.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (4)
1. A fuel filter with automatic exhaust function, comprising a filter shell (1) and a filter element, characterized in that: a filter outer cover (2) is connected above the filter shell (1) through threads, and the filter element is fixedly arranged between the filter shell (1) and the filter outer cover (2);
the filter core of the filter comprises a filter element upper end cover (3), a filter element lower end cover (4) and a central tube (5), the central tube (5) is fixedly arranged between the filter element upper end cover (3) and the filter element lower end cover (4), a filter medium (6) is fixedly arranged on the outer surface of the central tube (5), the upper end and the lower end of the filter medium (6) are respectively and fixedly connected to the surfaces of the filter element upper end cover (3) and the filter element lower end cover (4) through filter element glue (7), a central tube end cover (8) is fixedly arranged at the upper end of the central tube (5), an exhaust opening hole (9) is formed in the central tube end cover (8), an oil outlet channel (10) and two exhaust channels (11) are respectively formed in the central tube (5), the lower end of the oil outlet channel (10) penetrates through a filter shell (1) to be communicated with the outside, and the upper end of, the lower end of the exhaust channel (11) penetrates through the filter shell (1) to be communicated with the outside.
2. The fuel filter with automatic air exhaust function according to claim 1, wherein: the filter element lower end cover (4) is fixedly provided with a special-shaped sealing ring (12), and the filter element of the filter is connected with the filter shell (1) in a sealing way through the special-shaped sealing ring (12).
3. The fuel filter with automatic air exhaust function according to claim 1, wherein: the surface of the filter element lower end cover (4) is provided with an O-shaped sealing ring (13), and the O-shaped sealing ring (13) is fixedly installed between the oil outlet channel (10) and the two exhaust channels (11).
4. The fuel filter with automatic air exhaust function according to claim 1, wherein: the side surface of the central tube end cover (8) is provided with a thread structure, and the central tube end cover (8) is movably connected to the upper end of the central tube (5) through the thread structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020920866.5U CN212202312U (en) | 2020-05-27 | 2020-05-27 | Fuel filter with automatic exhaust function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020920866.5U CN212202312U (en) | 2020-05-27 | 2020-05-27 | Fuel filter with automatic exhaust function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212202312U true CN212202312U (en) | 2020-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020920866.5U Active CN212202312U (en) | 2020-05-27 | 2020-05-27 | Fuel filter with automatic exhaust function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212202312U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482816A (en) * | 2021-08-16 | 2021-10-08 | 一汽解放汽车有限公司 | Fuel filter |
-
2020
- 2020-05-27 CN CN202020920866.5U patent/CN212202312U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482816A (en) * | 2021-08-16 | 2021-10-08 | 一汽解放汽车有限公司 | Fuel filter |
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