CN217080658U

CN217080658U - Fuel filter assembly

Info

Publication number: CN217080658U
Application number: CN202221574421.1U
Authority: CN
Inventors: 孙国强; 庞武明; 黄金树; 李威
Original assignee: Weifang Chenxiang Power Technology Co ltd
Current assignee: Weifang Chenxiang Power Technology Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-07-29
Anticipated expiration: 2032-06-23

Abstract

The utility model discloses a fuel filter assembly, belonging to the technical field of filters, comprising a shell component, a filter element component and a filter base component, wherein the shell component comprises a shell made of transparent material; the filter element component comprises an upper cover, and a one-way valve is arranged in the upper cover; the filter base assembly comprises a filter base, an electric pump installation cavity is arranged in the filter base, and an electric pump oil inlet groove is formed in the bottom of the electric pump installation cavity; an oil inlet and an oil outlet are formed in the filter base main body, a main oil inlet channel is arranged in the filter base, and the main oil inlet channel is communicated with the oil outlet; an electric pump oil outlet channel is arranged between the main oil inlet channel and the electric pump installation cavity, a sealing groove is arranged around the main oil inlet channel, and an electric pump oil inlet channel is arranged between the sealing groove and the electric pump oil inlet groove. The utility model discloses can realize filter shell and filter core split function, can place the check valve structure on the filter core to through integrating higher oil duct design, can effectively reduce the part quantity on the filter seat, make the product compacter.

Description

Fuel filter assembly

Technical Field

The utility model relates to a fire oil filter assembly belongs to diesel oil low pressure oil piping system technical field.

Background

The fuel filter mainly acts on filtering larger particles and filtering water, and preventing the large particles from entering a next-stage fuel system, so that a precision matching piece in the fuel system, such as a fuel delivery pump and a high-pressure oil pump, is abraded, and the whole fuel system is protected. The fuel filter comprises a filter element and a filter shell, the filter element is failed in the using process and needs to be frequently disassembled and replaced, the filter element and the filter shell of the existing fuel filter are connected in a hard mode and are integrated, and the fuel filter needs to be integrally replaced in the replacing process. However, the filter element only occupies a small part of the cost of the whole filter and is discarded as a whole, so that the filter shell is seriously wasted, the function of repeated use is not realized, and the replacement cost of a user is increased.

With the continuous development of the technology, a fuel filter assembly with an electronic pump appears in the industry, but the following problems generally exist in the actual use of the existing fuel filter assembly with the electronic pump on the market:

1. the oil path design is complex, the oil paths are crossed more, a large number of complex surfaces exist, the deburring process is complex, a check valve oil cavity positioned at an oil outlet end needs to be designed, the overall structure is overstaffed, the check valve oil cavity is communicated with the outside, parts such as a plug and the like need to be additionally added for realizing sealing, and the cost is increased;

2. after the filter is full of water, can influence engine work, need in time to drain, current filter plastic casing generally is light-tight material, needs to add the sensor, has increased the cost.

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

The utility model provides a fuel filter assembly aiming at the defects in the background technology, which can realize the splitting function of the filter shell and the filter element, can place the one-way valve structure on the filter element, and can effectively reduce the number of parts on the filter base through the design of an integrated higher oil duct, so that the product is more compact; the visualization of oil products, water level and the service life of the filter element can be realized.

For solving the technical problem, the utility model discloses a following technical scheme:

a fuel filter assembly comprises a housing assembly, a filter element assembly and a filter base assembly; the shell component comprises a shell made of transparent materials;

the filter element assembly comprises an upper cover and a lower cover, a support framework is arranged between the upper cover and the lower cover, a filter element is sleeved outside the support framework, and a one-way valve is arranged inside the upper cover;

the filter base assembly comprises a filter base, an electric pump installation cavity is arranged in the filter base, an electric pump is installed in the electric pump installation cavity, and an arc-shaped electric pump oil inlet groove is formed in the bottom of the electric pump installation cavity; an oil inlet and an oil outlet are formed in the filter base main body; a main oil inlet channel is arranged in the filter base and communicated with the oil outlet; a round hole-shaped electric pump oil outlet channel is arranged between the main oil inlet channel and the electric pump installation cavity; an annular sealing groove is formed around the main oil inlet channel, and a round hole-shaped electric pump oil inlet channel is formed between the sealing groove and the electric pump oil inlet groove.

The utility model provides an optimize scheme, the outside of casing open end is equipped with the casing sealing washer, casing sealing washer and the sealed cooperation of straining the seat.

Further, the heater is installed to the inner chamber bottom of casing, and the heater comprises the heating plate of transversely putting, and the quantity of heating plate is two.

Furthermore, a support rib is arranged around the heater and fixedly connected with the bottom of the shell.

Further, a water drain valve is installed at the bottom of the shell.

Furthermore, a sealing ring b and a sealing ring c are embedded in the position, close to the upper end, of the upper cover, and the sealing ring c is located on the inner side of the sealing ring b.

Furthermore, a sealing ring a is embedded around the lower cover and is in sealing fit with the inner wall of the shell.

Furthermore, the bottom of the filter base is provided with an open end, and the open end is in threaded connection with the shell.

Further, the electric pump is fixedly connected with the filter base through bolts; the main part of the electric pump is sleeved with a support ring, and the end part of the support ring is provided with a sealing element for isolating oil inlet and return.

Further, the sealing groove is in sealing fit with the sealing ring b.

The utility model adopts the above technical scheme after, compare with prior art, have following advantage:

the housing component and the filter element component in the utility model are independent respectively and can be detachably mounted, after the filter element component reaches the service life, the housing component can be screwed down, so that the filter element component can be directly replaced, and the housing component can be reserved and reused, thereby reducing the use cost of users;

the oil inlet channel of the electric pump adopts the round hole and is arranged between the sealing groove and the main oil inlet channel; the electric pump oil outlet channel adopts a round hole and is integrated in the main oil inlet channel; the oil inlet groove of the electric pump is arc-shaped; the design makes the oil inlet and outlet channels easy to process, reduces the processing difficulty, has high integration level and reduces the height of the whole filter base; the oil inlet and outlet channel is shortest, and the flow resistance is reduced;

the utility model discloses the whole transparent material that adopts of shell can realize that oil, water level and filter core life-span are visual.

The present invention will be described in detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is an exploded view of the present invention;

FIG. 2 is a structural sectional view of the present invention;

FIG. 3 is an enlarged view at M in FIG. 2;

FIG. 4 is an enlarged view at N of FIG. 2;

FIG. 5 is a sectional view of the filter element assembly of the present invention;

FIG. 6 is an enlarged view at P in FIG. 5;

fig. 7 is a sectional view of the structure of the middle filter base of the present invention.

In the figure, 1-shell component, 11-shell sealing ring, 12-heater, 13-shell, 14-supporting rib and 15-water drain valve; 2-filter element component, 21-one-way valve, 22-sintered copper, 23-support framework, 24-sealing ring a, 25-sealing ring b, 26-sealing ring c, 27-upper cover, 28-filter element and 29-lower cover; 3-filter seat component, 31-filter seat, 311-seal groove, 312-electric pump oil inlet channel, 313-electric pump oil outlet channel, 314-oil inlet, 315-electric pump oil inlet channel, 316-oil outlet, 317-main oil inlet channel, 318-electric pump installation cavity, 32-electric pump and 33-support ring.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1-7, the utility model provides a fuel filter assembly, including shell subassembly 1, filter element subassembly 2 and filter element seat subassembly 3, shell subassembly 1 and filter element subassembly 2 are all installed on filter element seat subassembly 3, and filter element subassembly 2 installs the inside at shell subassembly 1.

The shell assembly 1 comprises a shell 13 made of transparent materials, a shell sealing ring 11 is arranged on the outer side of the opening end of the shell 13, and the shell sealing ring 11 is in sealing fit with a filter base 31.

The heater 12 is installed to the inner chamber bottom of casing 13, and heater 12 comprises the heating plate of transversely putting, and the quantity of heating plate is two.

And supporting ribs 14 are arranged around the heater 12, the supporting ribs 14 are fixedly connected with the bottom of the shell 13, and the supporting ribs 14 are used for supporting and limiting the filter element assembly 2.

The bottom of the shell 13 is provided with a water drain valve 15, and when the water in the shell 13 is excessive, the water drain valve 15 can be opened to drain the water.

The filter element assembly 2 comprises an upper cover 27 and a lower cover 29, a support framework 23 is arranged between the upper cover 27 and the lower cover 29, and a filter element 28 is sleeved outside the support framework 23.

A one-way valve 21 is arranged in the upper cover 27, and the one-way valve 21 is an umbrella valve and plays a role of one-way oil passage conduction; a sealing ring b25 and a sealing ring c26 are embedded in the position, close to the upper end, of the upper cover 27, and the sealing ring c26 is positioned on the inner side of the sealing ring b 25; the upper cover 27 is also provided with sintered copper 22 for filtering, and the structure of the sintered copper 22 is prior art and will not be described herein.

A sealing ring a24 is embedded around the lower cover 29, and the sealing ring a24 is in sealing fit with the inner wall of the shell 13.

Strain a subassembly 3 including straining seat 31, strain the seat 31 bottom and be equipped with the open end, open end and casing 13 threaded connection.

An electric pump installation cavity 318 is arranged in the filter base 31, an electric pump 32 is installed in the electric pump installation cavity 318, and the electric pump 32 is fixedly connected with the filter base 31 through bolts; the main part of electric pump 32 is gone up the cover and is equipped with support ring 33, and support ring 33 realizes installing electric pump 32's support, and the tip of support ring 33 is equipped with the isolated sealing member of advancing the oil return.

The bottom of the electric pump installation cavity 318 is provided with an electric pump oil inlet groove 315, and the electric pump oil inlet groove 315 is of an arc-shaped structure.

An oil inlet 314 and an oil outlet 316 are formed in the main body of the filter base 31.

A main oil inlet channel 317 is formed in the filter base 31, and the main oil inlet channel 317 is communicated with an oil outlet 316; the check valve 21 is integrated in the main oil feed passage 317; an electric pump oil outlet channel 313 is arranged between the main oil inlet channel 317 and the electric pump installation cavity 318, and the electric pump oil outlet channel 313 is of a circular hole structure.

An annular sealing groove 311 is formed around the main oil inlet channel 317, the sealing groove 311 is used for inserting the end part of the upper cover 27, and the sealing groove 311 is in sealing fit with a sealing ring b25 and is used for preventing dirty oil from entering; an electric pump oil inlet channel 312 is arranged between the sealing groove 311 and the electric pump oil inlet groove 315, and the electric pump oil inlet channel 312 is of a circular hole structure.

The utility model discloses a concrete theory of operation:

when the engine works, a high-pressure oil pump of the engine generates suction force to suck fuel oil from an oil inlet 314 of the filter base 31, the fuel oil is filtered by the filter element assembly 2 to separate water and oil, and part of the fuel oil is heated by the heater 12; the water is filtered out and falls into the bottom of the transparent shell 13 under the action of gravity, the storage condition of the water can be observed through the transparent shell 13, and when the water is excessive, a user can open the water drain valve 15 to drain the water; after passing through the filter cartridge 28, the clean fuel passes through the check valve 21 and enters the main inlet passage 317 of the filter base 31 and then flows directly out of the outlet port 316.

When the electric pump 32 is operated, the electric pump 32 sucks fuel from the electric pump fuel inlet channel 312, and the fuel enters the electric pump 32 through the electric pump fuel inlet groove 315, and after the electric pump 32 pressurizes the fuel, the fuel is pumped into the main fuel inlet channel 317 through the electric pump fuel outlet channel 313, and then flows out from the fuel outlet 316.

The foregoing is illustrative of the best mode of the invention, and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.

Claims

1. A fuel filter assembly which characterized in that: comprises a shell component (1), a filter element component (2) and a filter base component (3); the shell component (1) comprises a shell (13) made of transparent materials;

the filter element assembly (2) comprises an upper cover (27) and a lower cover (29), a support framework (23) is arranged between the upper cover (27) and the lower cover (29), a filter element (28) is sleeved outside the support framework (23), and a one-way valve (21) is arranged inside the upper cover (27);

the filter base assembly (3) comprises a filter base (31), an electric pump installation cavity (318) is arranged in the filter base (31), an electric pump (32) is installed in the electric pump installation cavity (318), and an arc-shaped electric pump oil inlet groove (315) is formed in the bottom of the electric pump installation cavity (318); an oil inlet (314) and an oil outlet (316) are formed in the main body of the filter base (31); a main oil inlet channel (317) is arranged inside the filter base (31), and the main oil inlet channel (317) is communicated with an oil outlet (316); a round hole-shaped electric pump oil outlet channel (313) is arranged between the main oil inlet channel (317) and the electric pump mounting cavity (318); an annular sealing groove (311) is arranged around the main oil inlet channel (317), and a round hole-shaped electric pump oil inlet channel (312) is arranged between the sealing groove (311) and the electric pump oil inlet groove (315).

2. A fuel filter assembly according to claim 1 wherein: and a shell sealing ring (11) is arranged on the outer side of the opening end of the shell (13), and the shell sealing ring (11) is in sealing fit with the filter base (31).

3. A fuel filter assembly according to claim 1 wherein: the heater (12) is installed to the inner chamber bottom of casing (13), and heater (12) comprise the heating plate of transversely putting, and the quantity of heating plate is two.

4. A fuel filter assembly according to claim 3 wherein: and support ribs (14) are arranged around the heater (12), and the support ribs (14) are fixedly connected with the bottom of the shell (13).

5. A fuel filter assembly according to claim 1 wherein: and a water drain valve (15) is installed at the bottom of the shell (13).

6. A fuel filter assembly according to claim 1 wherein: and a sealing ring b (25) and a sealing ring c (26) are embedded in the position, close to the upper end part, of the upper cover (27), and the sealing ring c (26) is positioned on the inner side of the sealing ring b (25).

7. A fuel filter assembly according to claim 1 wherein: and a sealing ring a (24) is embedded around the lower cover (29), and the sealing ring a (24) is in sealing fit with the inner wall of the shell (13).

8. A fuel filter assembly according to claim 1 wherein: the bottom of the filter base (31) is provided with an open end, and the open end is in threaded connection with the shell (13).

9. A fuel filter assembly according to claim 1 wherein: the electric pump (32) is fixedly connected with the filter base (31) through bolts; a support ring (33) is sleeved on the main body of the electric pump (32), and a sealing element for isolating oil inlet and return is arranged at the end part of the support ring (33).

10. A fuel filter assembly according to claim 6 wherein: the sealing groove (311) is in sealing fit with the sealing ring b (25).