CN216278227U - Filter element of fuel oil filter - Google Patents
Filter element of fuel oil filter Download PDFInfo
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- CN216278227U CN216278227U CN202220549475.6U CN202220549475U CN216278227U CN 216278227 U CN216278227 U CN 216278227U CN 202220549475 U CN202220549475 U CN 202220549475U CN 216278227 U CN216278227 U CN 216278227U
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- filter element
- central tube
- boss
- antifouling
- tube body
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Abstract
The utility model discloses a fuel filter element, which belongs to the technical field of fuel filtration and comprises an outer filter element, wherein the outer filter element is sleeved and supported outside a central tube of the filter element, the upper end of the central tube of the filter element is connected with an upper cover of the filter element, and the lower end of the central tube of the filter element is connected with a lower cover of the filter element; the filter element central tube comprises a central tube body, a drainage tube is coaxially arranged in the central tube body, and the upper end of the drainage tube is connected with the central tube body through an annular bulge; the lower end of the drainage tube is arranged in the central tube body in a suspended manner; the annular bulge is provided with an exhaust hole; the utility model can reduce the problem of gas accumulation and avoid the problem of blocking the upper half part of the filter element; it is possible to facilitate the arrangement of the electric pump and the manual pump.
Description
Technical Field
The utility model relates to a fuel oil filter element, and belongs to the technical field of fuel oil filtration.
Background
The fuel filter mainly acts on filtering larger particles and filtering water, prevents large particles from entering a precision matching piece (such as a fuel delivery pump and a high-pressure oil pump) caused in a next-stage fuel system to be abraded, and is favorable for protecting the whole fuel system. With the continuous development of the technology, a coalescence type filter element is generated, however, due to the imperfect technology, the product is matched with a filter base in the prior art, and the problem of air accumulation exists in the use process; and similar with traditional filter core, the coalescence formula filter core does not have the drainage effect, leads to appearing half the jam phenomenon on the first half in the filtering process, and half down does not block up, and when the fuel passed through, the liquid level height descends the scheduling problem and appears, and the coalescence formula filter core is single oil circuit structure in addition, is not convenient for arrange electric pump or manual pump.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects, the utility model provides the filter element of the fuel oil filter, which can reduce the problem of gas accumulation and avoid the problem of blocking the upper half part of the filter element; it is possible to facilitate the arrangement of the electric pump and the manual pump.
In order to solve the technical problems, the utility model adopts the following technical scheme: a fuel filter element comprises an outer filter element, wherein the outer filter element is sleeved and supported outside a central tube of the filter element, the upper end of the central tube of the filter element is connected with an upper cover of the filter element, and the lower end of the central tube of the filter element is connected with a lower cover of the filter element; the filter element central tube comprises a central tube body, a drainage tube is coaxially arranged in the central tube body, and the upper end of the drainage tube is connected with the central tube body through an annular bulge; the lower end of the drainage tube is arranged in the central tube body in a suspended manner; the annular bulge is provided with an exhaust hole.
Furthermore, the filter element upper cover is provided with an annular antifouling isolation boss and a one-way valve boss, and the one-way valve boss is arranged on the inner side of the antifouling isolation boss;
the filter element upper cover is provided with a bypass flow passage, and the bypass flow passage is arranged between the antifouling isolation boss and the one-way valve boss.
Further, the top end surface of the one-way valve boss is lower than that of the antifouling isolation boss.
Furthermore, a water filtering filter element is arranged on the inner side of the central tube body and is arranged between the central tube body and the drainage tube.
Furthermore, the filter element upper cover is provided with a main oil passing hole, and an umbrella valve is installed in the main oil passing hole.
Furthermore, an antifouling isolation sealing groove is formed in the antifouling isolation boss, and an isolation sealing ring is arranged in the antifouling isolation sealing groove;
the antifouling isolation boss is provided with a mounting hole, sintered copper is installed in the mounting hole, the mounting hole radially extends along the antifouling isolation boss, and the mounting hole is communicated with the bypass flow passage.
Furthermore, a check valve sealing groove is formed in the check valve boss, and a check valve sealing ring is arranged in the check valve sealing groove.
Furthermore, an annular sealing groove is formed in the outer side wall of the water filtering filter element, and a water filtering filter element sealing ring is arranged in the annular sealing groove.
Furthermore, a sealing groove is formed outside the lower cover of the filter element, and an antifouling sealing ring is arranged in the sealing groove;
and a via hole channel is arranged on one side of the filter element lower cover, which is close to the water filtering element.
Further, the annular protrusion extends radially inward along the inside of the center tube body; the central tube body, the annular bulge and the drainage tube are integrally formed.
After the technical scheme is adopted, compared with the prior art, the utility model has the following advantages:
1. because the boss of the check valve is lower than the antifouling isolation boss, the length of the filter element can be effectively shortened, and the air storage space in the filter base above the upper cover of the filter element is reduced.
2. When the filter element is internally provided with gas, the central tube of the filter element close to the upper end cover of the filter element is provided with an exhaust hole for preventing the gas accumulation in the filter element. The center tube inboard has the drainage tube, and the lower terminal surface of drainage tube and the interval distance between the terminal surface under the outer filter core are a, can let the fuel preferentially flow through the filtration from the filter core bottom to make the filter core preferentially filter from the bottom, prevent that filter core upper portion half from blockking up, the fuel liquid level descends.
3. The upper cover of the filter element is provided with an oil passing hole as a main oil passage for one-way oil passing; an overflow channel is arranged between the antifouling isolation boss and the one-way valve boss of the filter element upper cover and is used for supplying oil to the manual pump or the electric pump; the two oil paths do not interfere with each other to form a double-oil-path structure, so that the electric pump or the manual pump can be conveniently arranged on a product.
4. The utility model also has the advantages of less material and low cost.
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is an enlarged view at B in FIG. 1;
FIG. 4 is another cross-sectional view of the present invention;
FIG. 5 is an enlarged view at C of FIG. 4;
fig. 6 is a top view of the present invention.
In the figure, the position of the upper end of the main shaft,
1-filter element upper cover, 101-antifouling isolation boss, 102-antifouling isolation seal groove, 103-check valve seal groove, 104-check valve boss, 105-main oil passing hole, 106-bypass flow passage, 107-mounting hole, 2-isolation seal ring, 3-check valve seal ring, 4-umbrella valve, 5-outer filter element, 6-filter element central tube, 601-central tube body, 602-drainage tube, 603-annular bulge, 604-exhaust hole, 7-filter element lower cover, 701-via hole passage, 702-seal groove, 8-antifouling seal ring, 9-water filtration filter element, 901-annular seal groove, 10-sintered copper, and 11-water filtration filter element seal ring.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.
Example 1
As shown in fig. 1-6, the utility model provides a fuel filter element, which comprises an outer filter element 5, wherein the outer filter element 5 is sleeved and supported outside a filter element central tube 6, the upper end of the filter element central tube 6 is connected with a filter element upper cover 1, and the lower end of the filter element central tube is connected with a filter element lower cover 7; the filter element upper cover 1 and the filter element lower cover 7 are respectively buckled at two ends of the outer filter element 5 to fix the outer filter element 5.
Filter core upper cover 1 has annular antifouling isolation boss 101, antifouling isolation seal groove 102 has on the boss 101 is kept apart to antifouling, be equipped with in antifouling isolation seal groove 102 and keep apart sealing washer 2, antifouling isolation boss 101 and the cooperation of outside filter seat to seal through keeping apart sealing washer 2.
The filter element upper cover 1 is provided with an annular one-way valve boss 104, and the one-way valve boss 104 is arranged on the inner side of the anti-pollution isolation boss 101; the check valve sealing structure is characterized in that a check valve sealing groove 103 is formed in the check valve boss 104, a check valve sealing ring 3 is arranged in the check valve sealing groove 103, and the check valve sealing ring 3 is in sealing fit with an external filter base.
A main oil passing hole 105 is formed in the filter element upper cover 1, the main oil passing hole 105 is a main oil passage, an umbrella valve 4 is installed in the main oil passing hole 105, and one-way oil passing of the main oil passage is realized through the umbrella valve 4; the filter element upper cover 1 is provided with a bypass flow passage 106, the bypass flow passage 106 is arranged between the antifouling isolation boss 101 and the one-way valve boss 104, and the bypass flow passage 106 is used for supplying oil to a manual pump or an electric pump.
The antifouling isolation boss 101 is provided with a mounting hole 107, and sintered copper 10 is mounted in the mounting hole 107; the mounting hole 107 extends along the radial direction of the anti-fouling isolation boss 101, and the mounting hole 107 is communicated with the bypass flow passage 106.
The top end face of the one-way valve boss 104 is lower than that of the antifouling isolation boss 101, so that the length of the filter element can be shortened, and the gas storage space in the filter base is reduced.
The filter element central tube 6 comprises a cylindrical central tube body 601, a drainage tube 602 is coaxially arranged in the central tube body 601, the upper end of the drainage tube 602 is connected with the central tube body 601 through an annular bulge 603, the annular bulge 603 extends inwards along the radial direction of the inner side of the central tube body 601, the lower end of the drainage tube 602 is arranged in the central tube body 601 in a hanging manner, and the interval distance from the lower end surface of the drainage tube 602 to the lower end surface of the outer filter element 5 is a; the central tube body 601, the annular protrusion 603 and the draft tube 602 are integrally formed. The annular protrusion 603 is provided with an exhaust hole 604.
A water filtering filter element 9 is arranged on the inner side of the central tube body 601, and the water filtering filter element 9 is arranged between the central tube body 601 and the drainage tube 602; the outer side wall of the water filtering filter element 9 is provided with an annular sealing groove 901, a water filtering filter element sealing ring 11 is arranged in the annular sealing groove 901, and the water filtering filter element sealing ring 11 is used for ensuring that the water filtering filter element 9 can completely filter water in oil products.
A sealing groove 702 is formed in the outer part of the filter element lower cover 7, an antifouling sealing ring 8 is arranged in the sealing groove 702, and the antifouling sealing ring 8 is matched with an external water cup to form sealing; a via hole channel 701 is arranged on one side, close to the water filtering filter element 9, of the filter element lower cover 7, and the via hole channel 701 is communicated with an external water cup; after the water filtered by the water filtering element 9 is separated out, the water enters an external water cup through the through hole passage 701.
The working principle of the utility model is as follows:
the fuel oil is arranged outside the filter element of the fuel oil filter, is isolated from the clean side of the filter element through the isolation sealing ring, impurities are filtered by the outer filter element after the fuel oil passes through the outer filter element, the fuel oil passes through the central tube of the filter element and is filtered by the water filtering filter element, water is gathered on the water filtering filter element, water drops are formed and then fall under the action of gravity, and the water drops pass through the via hole channel of the lower cover of the filter element and are deposited in a water cup.
The filtered fuel oil is guided by a drainage tube to enter a main oil passing hole and then passes through an umbrella valve to supply oil to a next stage of filter element; when the electric pump or the manual pump operates, a part of the oil passing through the drain tube supplies oil to the electric pump or the manual pump through the bypass flow passage.
When fuel oil is aerated, the electric pump or the manual pump works, air in the upper cover of the filter element is filtered by sintered copper through the suction force, and is supplied to the electric pump or the manual pump through the bypass flow passage, and finally is discharged.
When the filter element is internally provided with gas, the central tube of the filter element close to the upper end cover of the filter element is provided with an exhaust hole for preventing the gas accumulation in the filter element.
The center tube inboard has the drainage tube, and the lower terminal surface of drainage tube and the interval distance between the terminal surface under the outer filter core are a, can let the fuel preferentially flow through the filtration from the filter core bottom to make the filter core preferentially filter from the bottom, prevent that filter core upper portion half from blockking up, the fuel liquid level descends.
And gas sometimes exists in the fuel oil and is accumulated above the filter element upper cover, the minimum height of the accumulation is related to the height of the umbrella valve, and the boss of the one-way valve is lower than the anti-pollution isolation boss, so that the length of the filter element is effectively shortened, and the gas storage space inside the filter base above the filter element upper cover is reduced.
The foregoing is illustrative of the best mode of the utility model and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The scope of the present invention is defined by the appended claims, and any equivalent modifications based on the technical teaching of the present invention are also within the scope of the present invention.
Claims (10)
1. A fuel filter element comprises an outer filter element (5), wherein the outer filter element (5) is sleeved and supported outside a filter element central tube (6), the upper end of the filter element central tube (6) is connected with an upper filter element cover (1), and the lower end of the filter element central tube is connected with a lower filter element cover (7); the method is characterized in that: the filter element central tube (6) comprises a central tube body (601), a drainage tube (602) is coaxially arranged in the central tube body (601), and the upper end of the drainage tube (602) is connected with the central tube body (601) through an annular bulge (603); the lower end of the drainage tube (602) is arranged in the central tube body (601) in a hanging manner; the annular bulge (603) is provided with an exhaust hole (604).
2. A fuel filter element as set forth in claim 1 wherein: the filter element upper cover (1) is provided with an annular antifouling isolation boss (101) and a one-way valve boss (104), and the one-way valve boss (104) is arranged on the inner side of the antifouling isolation boss (101); the filter element upper cover (1) is provided with a bypass flow passage (106), and the bypass flow passage (106) is arranged between the antifouling isolation boss (101) and the one-way valve boss (104).
3. A fuel filter element as set forth in claim 2 wherein: the top end surface of the one-way valve boss (104) is lower than that of the antifouling isolation boss (101).
4. A fuel filter element as set forth in claim 1 wherein: the drainage device is characterized in that a water filtering filter element (9) is arranged on the inner side of the central tube body (601), and the water filtering filter element (9) is arranged between the central tube body (601) and the drainage tube (602).
5. A fuel filter element as set forth in claim 1 wherein: the filter element upper cover (1) is provided with a main oil passing hole (105), and an umbrella valve (4) is installed in the main oil passing hole (105).
6. A fuel filter element as set forth in claim 2 wherein: an antifouling isolation sealing groove (102) is formed in the antifouling isolation boss (101), and an isolation sealing ring (2) is arranged in the antifouling isolation sealing groove (102); be equipped with a mounting hole on antifouling isolation boss (101), install sintered copper (10) in the mounting hole, mounting hole (107) radially extend along antifouling isolation boss (101), mounting hole (107) and bypass flow channel (106) intercommunication.
7. A fuel filter element as set forth in claim 2 wherein: be equipped with check valve seal groove (103) on check valve boss (104), be equipped with check valve sealing washer (3) in check valve seal groove (103).
8. A fuel filter element as set forth in claim 4 wherein: an annular sealing groove (901) is formed in the outer side wall of the water filtering filter element (9), and a water filtering filter element sealing ring (11) is arranged in the annular sealing groove (901).
9. A fuel filter element as set forth in claim 4 wherein: a sealing groove (702) is formed in the outer part of the filter element lower cover (7), and an antifouling sealing ring (8) is arranged in the sealing groove (702);
and a via hole channel (701) is arranged on one side, close to the water filtering element (9), of the filter element lower cover (7).
10. A fuel filter element as set forth in claim 1 wherein: the annular protrusion (603) extends radially inward along the inside of the center tube body (601); the central pipe body (601), the annular bulge (603) and the drainage pipe (602) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220549475.6U CN216278227U (en) | 2022-03-15 | 2022-03-15 | Filter element of fuel oil filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220549475.6U CN216278227U (en) | 2022-03-15 | 2022-03-15 | Filter element of fuel oil filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216278227U true CN216278227U (en) | 2022-04-12 |
Family
ID=81059891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220549475.6U Active CN216278227U (en) | 2022-03-15 | 2022-03-15 | Filter element of fuel oil filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216278227U (en) |
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2022
- 2022-03-15 CN CN202220549475.6U patent/CN216278227U/en active Active
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