CN212928036U

CN212928036U - Double-stage filtering fuel filter element assembly and fuel filter thereof

Info

Publication number: CN212928036U
Application number: CN202021377514.6U
Authority: CN
Inventors: 郭步春
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-04-09
Anticipated expiration: 2030-07-14

Abstract

The utility model provides a two-stage filtering fuel filter element assembly and a fuel filter thereof, which comprises an outer core assembly and an inner core assembly, wherein an outer core inner cavity is arranged in the outer core assembly, the inner core assembly is arranged in the outer core inner cavity, a hollow cavity is arranged in the inner core assembly, an oil pumping pipe is arranged in the hollow cavity, and the side wall of the inner core assembly is partially hollowed out, so that the hollow cavity is communicated with the outer core assembly and forms a fuel flow channel; when the filter element assembly filters, the fuel oil passes through the outer core assembly and the inner core assembly in sequence, and double-stage filtration is achieved. Use the utility model discloses a filter core assembly can filter fuel with the mode of classifying filtration, filters large granule impurity through outer core filter media colating earlier when the fuel passes through the product, and the fuel after the colating filters less particle diameter impurity through inner core filter media essence to rely on outer core filter media in gather water, inner core filter media to realize water oil separating according to water outward, guarantee that the fuel filters cleaner, the product is difficult for blockking up, the life of filtration efficiency and filter core assembly is more of a specified duration.

Description

Double-stage filtering fuel filter element assembly and fuel filter thereof

Technical Field

The utility model belongs to the technical field of auto-parts technique and specifically relates to a fuel filter core assembly is filtered to doublestage and fires oil cleaner thereof.

Background

In order to deliver clean fuel to the engine, the fuel filter is responsible for filtering fine impurities in the fuel, thereby enabling the engine to operate more efficiently.

Conventional filters are filtered through two or more filter assemblies. The structural defects are large installation space requirement and high manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The technical task of the utility model is to solve prior art's not enough, provide a fuel filter core assembly is filtered to doublestage and fuel filter thereof, this structure can carry out the hierarchical formula gradient filtration to the impurity of different granules under the high filtration precision to solve a plurality of filters manufacturing cost who points out in the background art defects such as high, occupation space is big.

The utility model provides a technical scheme that its technical problem adopted is:

1. the utility model provides a two-stage filtering fuel filter element assembly and a fuel filter thereof, which structurally comprises an outer core assembly and an inner core assembly, wherein an outer core inner cavity is arranged in the outer core assembly, the inner core assembly is arranged in the outer core inner cavity, a hollow cavity is arranged in the inner core assembly, an oil pumping pipe is arranged in the hollow cavity, and the side wall of the inner core assembly is partially hollowed out, so that the hollow cavity is communicated with the outer core assembly and forms a fuel flow channel;

when the filter element assembly filters, the fuel oil passes through the outer core assembly and the inner core assembly in sequence, and double-stage filtration is achieved.

The scheme is preferred, outer core subassembly includes outer core skeleton, and the surface of outer core skeleton is provided with outer core filter media, outer core filter media is used for filtering large granule impurity, the upper and lower extreme of outer core skeleton is connected with filter core upper cover and filter core lower cover respectively.

The scheme is preferred, the inner core subassembly includes the inner core skeleton, and the upper and lower end of inner core skeleton is connected with filter core upper cover and filter core lower cover respectively, the surface of inner core skeleton is provided with the inner core filter media, and the inner core filter media is used for filtering tiny particle impurity.

The scheme is preferred, outer core filter media is made by interior water gathering material, and the inner core filter media is made by outer according to the water material, and filter core lower cover department has seted up the water droplet and has subsided the hole, and water droplet subsides the hole and is located outer core filter media, inner core filter media hookup location department, relies on outer core filter media in gather water, outer according to water realization oil-water separation of inner core filter media.

Preferably, the partial hollow is positioned at the upper part or the lower part of the side wall of the inner core component.

Preferably, the oil pumping pipe extends from the un-hollowed part of the side wall of the inner core assembly to the partially hollowed part.

2. The utility model provides a fuel filter, including the filter casing, be equipped with foretell filter core assembly in the filter casing.

The utility model discloses a doublestage filters fuel filter core assembly and fires oil cleaner thereof compares produced beneficial effect with prior art and is:

use the utility model provides a filter core assembly can filter fuel with the mode of classifying filtration, filters large granule impurity through outer core filter media colating earlier when the fuel passes through the product, and the fuel after the colating filters less particle diameter impurity through inner core filter media essence to rely on outer core filter media in gather water, inner core filter media to realize water oil separating according to water outward, guarantee that the fuel filters cleaner, the cost is reduced, the product is difficult for blockking up, the life of filtration efficiency and filter core assembly is more of a specified duration.

Drawings

In order to more clearly describe the working principle of the fuel filter assembly and the fuel filter thereof, a simplified diagram is attached for further explanation.

Fig. 1 is a schematic view of an internal structure of a filter cartridge assembly according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of an upper cover of a filter cartridge according to an embodiment;

FIG. 3 is a perspective view of an upper cover of a filter cartridge according to an embodiment;

FIG. 4 is a schematic view of a lower cover of a filter cartridge according to an embodiment;

FIG. 5 is a perspective view of a lower cover of a filter cartridge according to an embodiment;

FIG. 6 is a schematic structural view of the outer core frame;

FIG. 7 is a perspective view of the outer core frame;

FIG. 8 is a schematic structural view of the core skeleton;

FIG. 9 is a perspective view of the core skeleton;

FIG. 10 is a schematic diagram of an oil passage according to the first embodiment;

FIG. 11 is a schematic view of the internal structure of a second filter cartridge assembly according to an embodiment of the present invention;

FIG. 12 is a schematic structural view of an upper cover of a filter cartridge according to a second embodiment;

FIG. 13 is a perspective view of an upper cover of a filter cartridge according to a second embodiment;

FIG. 14 is a schematic structural view of a lower cover of a filter cartridge according to a second embodiment;

FIG. 15 is a perspective view of a lower cover of a filter cartridge according to the second embodiment;

fig. 16 is a schematic diagram of an oil passage in the second embodiment.

The reference numerals in the figures denote:

1. an outer core component 101, an outer core inner cavity 102, an outer core framework 103, a filter core upper cover,

104. a filter element lower cover 105 and an outer core filter material;

2. an inner core component 201, an inner core filter material 202, an inner core framework 203, a hollow cavity,

204. part of the part is hollowed out;

3. and (4) water drop settling holes, and an oil pumping pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example one

As shown in fig. 1, the two-stage filtering fuel filter element assembly and the fuel filter thereof of the present invention structurally include an outer core assembly 1 and an inner core assembly 2, wherein an outer core inner cavity 101 is provided in the outer core assembly 1, the inner core assembly 2 is provided in the outer core inner cavity 101, a hollow cavity 203 is provided in the inner core assembly 2, an oil pumping pipe 4 is provided in the hollow cavity 203, and a partial hollow 204 is provided on a side wall of the inner core assembly 2, so that the hollow cavity 203 is communicated with the outer core assembly 1 and forms a fuel flow passage;

when the filter element assembly filters, the fuel oil passes through the outer core component 1 and the inner core component 2 in sequence, and double-stage filtration is realized.

With reference to fig. 2-5 and 6-7, the outer core assembly 1 includes an outer core framework 102, an outer core filter 105 is disposed on the surface of the outer core framework 102, the outer core filter 105 is used for filtering large particle impurities, and the upper end and the lower end of the outer core framework 102 are respectively connected to a filter element upper cover 103 and a filter element lower cover 104.

With reference to fig. 2-5 and 8-9, the inner core assembly 2 includes an inner core frame 202, the upper end and the lower end of the inner core frame 202 are respectively connected with a filter element upper cover 103 and a filter element lower cover 104, an inner core filter material 201 is disposed on the surface of the inner core frame 202, and the inner core filter material 201 is used for filtering fine particle impurities.

The outer core filter material 105 is made of an inner water-gathering material, the inner core filter material 201 is made of an outer water-gathering material, the filter element lower cover 104 is provided with the water drop settlement hole 3, the water drop settlement hole 3 is located at the connecting position of the outer core filter material 105 and the inner core filter material 201, and oil-water separation is realized by depending on the water gathering in the outer core filter material 105 and the outer water-gathering of the inner core filter material 201.

The partial hollow 204 is located at the lower part of the side wall of the inner core assembly 2, and the oil pumping pipe 4 extends from the un-hollow part of the side wall of the inner core assembly 2 to the partial hollow 204.

With reference to fig. 10, the working principle of the first embodiment is as follows:

1. impurity filtration:

1.1 first-stage filtration: when fuel oil is coarsely filtered by the outer core filter material 105, a dirt containing layer on the surface can intercept impurities with larger particle sizes in the diesel oil, so that primary filtration is realized;

1.2, secondary filtration: when the fuel oil after the primary filtration is finely filtered by the inner core filter material 201, the dirt containing layer on the surface can intercept impurities with smaller particle sizes in the diesel oil, so that the secondary filtration is realized.

2. Water separation: the emulsified water has a water-gathering function when being coarsely filtered by the outer core filter material 105, wherein the synthetic fiber enables fine water particles to slowly gather into large particles on the oil outlet surface of the filter layer, and then the large particles and the small particles are precipitated to the water-collecting cup from the water drop sedimentation hole 3 of the lower cover 104 of the filter element by the self weight of the water, so that the effect of separating the large particles from the small particles is achieved. In addition, what this product inner core filter media 201 chose for use is that the filter media of refusing water outward that has hydrophobic function, can carry out secondary filter to the fuel, can prevent that partial moisture of gathering and separating out and residual moisture in the diesel oil from entering into combustion system.

It should be noted that the inner and outer water-collecting materials of the present invention are the materials existing in the field.

Example two

With reference to fig. 6-7, 8-9, and 11-16, the second embodiment is the same as the first embodiment except that a part of the hollow 204 is located at the upper part of the sidewall of the core assembly 2, i.e. the core assembly of the first embodiment is rotated by 180 ° for use.

EXAMPLE III

The third embodiment provides a fuel filter, which includes a filter housing, the filter element assembly of the first embodiment or the second embodiment is disposed in the filter housing, and the connection manner between the filter element assembly and the filter housing is known in the art and will not be described herein again.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The double-stage fuel filtering filter element assembly is characterized by comprising an outer core assembly (1) and an inner core assembly (2), wherein an outer core inner cavity (101) is formed in the outer core assembly (1), the inner core assembly (2) is arranged in the outer core inner cavity (101), a hollow cavity (203) is formed in the inner core assembly (2), an oil pumping pipe (4) is arranged in the hollow cavity (203), and a part of hollow part (204) is arranged on the side wall of the inner core assembly (2), so that the oil pumping pipe (4) is communicated with the outer core assembly (1) to form a fuel flow channel;

when the filter element assembly filters, fuel oil passes through the outer core assembly (1) and the inner core assembly (2) in sequence, and double-stage filtration is achieved.

2. The dual-stage fuel filter cartridge assembly according to claim 1, wherein the outer core assembly (1) comprises an outer core framework (102), an outer core filter material (105) is disposed on the surface of the outer core framework (102), the outer core filter material (105) is used for filtering large-particle impurities, and the upper end and the lower end of the outer core framework (102) are respectively connected with a filter cartridge upper cover (103) and a filter cartridge lower cover (104).

3. The dual-stage fuel filter element assembly according to claim 2, wherein the inner core assembly (2) comprises an inner core frame (202), the upper end and the lower end of the inner core frame (202) are respectively connected with a filter element upper cover (103) and a filter element lower cover (104), an inner core filter material (201) is arranged on the surface of the inner core frame (202), and the inner core filter material (201) is used for filtering fine particle impurities.

4. The dual-stage fuel filter element assembly according to claim 3, wherein the outer filter element (105) is made of inner water-gathering material, the inner filter element (201) is made of outer water-gathering material, the filter element lower cover (104) is provided with a water drop settling hole (3), the water drop settling hole (3) is located at the connecting position of the outer filter element (105) and the inner filter element (201), and oil-water separation is realized by water gathering in the outer filter element (105) and water gathering outside the inner filter element (201).

5. The dual stage filter fuel cartridge assembly of claims 1, 2, 3, or 4 wherein the partial cutout (204) is located in an upper or lower portion of the sidewall of the core assembly (2).

6. The dual stage filter fuel cartridge assembly as recited in claims 1, 2, 3, or 4 wherein the oil extraction tube (4) extends from an un-hollowed portion of the sidewall of the core assembly (2) to a partially hollowed portion (204).

7. A fuel filter comprising a filter housing, wherein a filter cartridge assembly as claimed in claim 1, 2, 3 or 4 is provided in the filter housing.