CN114225494B - Flow adaptive self-cleaning fuel filter - Google Patents
Flow adaptive self-cleaning fuel filter Download PDFInfo
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- CN114225494B CN114225494B CN202210011095.1A CN202210011095A CN114225494B CN 114225494 B CN114225494 B CN 114225494B CN 202210011095 A CN202210011095 A CN 202210011095A CN 114225494 B CN114225494 B CN 114225494B
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- fuel
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- assembly
- shell
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- 239000000446 fuel Substances 0.000 title claims abstract description 156
- 238000004140 cleaning Methods 0.000 title claims abstract description 32
- 230000003044 adaptive effect Effects 0.000 title claims abstract description 22
- 239000000295 fuel oil Substances 0.000 claims abstract description 36
- 238000001914 filtration Methods 0.000 claims description 10
- 230000001133 acceleration Effects 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims 1
- 239000000654 additive Substances 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- 239000000758 substrate Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/22—Directing the mixture to be filtered on to the filters in a manner to clean the filters
Abstract
The invention discloses a flow adaptive self-cleaning fuel filter, which comprises a shell assembly, an inlet filter screen assembly and a flow valve assembly, wherein the inlet filter screen assembly and the flow valve assembly are assembled inside the shell assembly to form two channels, namely a fuel accelerating channel and an overflow channel, the fuel filter is provided with a fuel inlet and two fuel outlets, the fuel filter is internally provided with the fuel inlet filter screen assembly which is fixed by an elastic check ring for holes, a valve capable of controlling flow, the inlet filter screen and the high-precision outlet filter screen which can provide high-cleanliness fuel for a servo system, when the valve is closed, the fuel washes the outlet filter screen through the fuel accelerating channel to realize a cleaning function, and when the valve is opened, the fuel is decompressed through the overflow channel. The invention can improve the working reliability of the fuel oil filter and reduce the maintenance frequency, thereby integrally improving the working reliability of the fuel oil system and reducing the working difficulty of later maintenance.
Description
Technical Field
The invention relates to a fuel filter with a self-cleaning function, and belongs to the technical field of fuel control systems.
Background
A conventional fuel control system filter has no self-cleaning function, so that the fuel system is low in reliability and high in maintenance frequency, and cannot be adjusted in a self-adaptive mode according to the flow of fuel. In order to solve the problems, a flow adaptive fuel filter with a self-cleaning function is urgently needed.
Disclosure of Invention
The invention aims to provide a flow adaptive self-cleaning fuel filter which is suitable for a fuel control system, has self-cleaning capability and can control a fuel flow channel through flow.
The invention is realized by the following technical scheme:
a flow adaptive self-cleaning fuel filter comprises,
the fuel oil inlet and the second fuel oil outlet are respectively positioned at two ends of the axial direction of the shell assembly, and the first fuel oil outlet is positioned on the circumferential surface of the shell assembly;
a flow valve assembly assembled inside the housing assembly and including a flow valve housing, a flow valve shaft, a flow valve core, and a spring, wherein,
a first flow channel opening and a second flow channel opening which are not communicated with each other are formed in the first axial end face of the flow valve shell, a first interval is formed between the circumferential surface of the flow valve shell and a fuel outlet in the circumferential surface of the shell assembly, a fuel channel is formed at the first interval and is communicated with the first flow channel opening, a fuel pressure relief cavity is formed in the flow valve shell, and the fuel pressure relief cavity is communicated with the second flow channel opening;
one end of the flow valve shaft penetrates through the fuel oil pressure relief cavity and then is detachably connected to the axial first end face of the flow valve shell, the other end of the flow valve shaft extends to a second fuel oil outlet of the shell assembly and is provided with a second interval with the flow valve shell, the second interval is communicated with the fuel oil channel, one end, located at the second fuel oil outlet, of the flow valve shaft is provided with a fuel oil circulation hole, and two ends of the fuel oil circulation hole are respectively communicated with the second interval and the second fuel oil outlet;
the spring is sleeved on the flow valve shaft;
the flow valve core is sleeved on the flow valve shaft and positioned between the spring and the flow valve shell, and a plugging bulge is arranged on the flow valve core and inserted in a second flow passage of the flow valve shell;
the inlet filter screen assembly is positioned between the fuel inlet and the flow valve shell on the shell assembly, the inlet filter screen assembly comprises a fuel accelerating channel opening and an overflow channel opening, the fuel accelerating channel opening is communicated with the first channel, and the overflow channel opening is communicated with the second channel.
Alternatively, the housing assembly has a positioning protrusion therein, and the flow valve housing is overlapped with the positioning protrusion in the housing assembly.
As an option, the flow adaptive self-cleaning fuel filter further comprises a first circlip for hole and a second circlip for hole, the first circlip for hole is located at the fuel inlet of the shell assembly, the second circlip for hole is located at the second fuel outlet, and the inlet filter screen assembly and the flow valve assembly are located between the first circlip for hole and the second circlip for hole.
As an option, the flow adaptive self-cleaning fuel filter also comprises,
an external thread located on an outer surface of one end of the flow valve shaft;
the inner threaded hole is positioned on the first axial end face of the flow valve shell;
a through hole located on the inlet screen assembly;
and one end of the flow valve shaft with an external thread sequentially penetrates through the through hole in the inlet filter screen assembly and the internal thread hole in the first axial end face of the flow valve shell and then is in threaded connection with the self-locking nut.
Alternatively, the inlet screen assembly includes a top cover, an inlet screen and a bottom cover, the inlet screen being positioned between the top cover and the bottom cover, the top cover and the bottom cover each having a slot opening, the slots forming an accelerated fuel flow opening and an overflow flow opening.
As an option, the flow adaptive self-cleaning fuel filter also comprises,
the first positioning hole is positioned on the bottom cover;
the second positioning hole is positioned on the axial first end face of the flow valve shell;
the third positioning hole is positioned on the inlet filter screen;
and the positioning block is positioned on the surface of the top cover and is inserted into the first positioning hole, the second positioning hole and the third positioning hole.
As an option, the flow adaptive self-cleaning fuel filter further comprises a limiting structure, the limiting structure is arranged on the inner wall of the shell assembly, and the limiting structure is parallel to the axial direction of the flow valve shaft.
As an option, the flow adaptive self-cleaning fuel filter further comprises a protruding limiting structure, the protruding limiting structure is arranged on the flow valve shaft, and the outer diameter of the protruding limiting structure is larger than the inner diameter of a sleeve hole at the sleeve joint of the flow valve core and the flow valve shaft.
Alternatively, the flow adaptive self-cleaning fuel filter further comprises a trapezoidal projection structure located on the circumferential surface of the housing assembly and projecting into the first space.
Alternatively, the flow adaptive self-cleaning fuel filter further comprises an outlet screen positioned at the first fuel outlet, the outlet screen having a filtering equivalent diameter less than the filtering equivalent diameter of the inlet screen assembly.
The fuel filter controls the opening and closing of the flow movable valve assembly through the flow of the fuel, has a flow self-adaption function, and has two fuel circulation paths:
when the valve core of the flow valve is closed, fuel enters from the fuel inlet, a small part of the fuel flows out of the first fuel outlet (on the circumferential side wall of the shell assembly) through the first flow passage port, the first interval and the outlet filter screen, and a large part of the fuel flows out of the second fuel outlet (at the lower end of the shell assembly) through the first flow passage port, the first interval, the second interval and the fuel flow through hole;
in the second path, when the valve core of the flow valve is opened, fuel enters from the fuel inlet, most of the fuel flows out of the second fuel outlet (the lower end of the shell assembly) through the fuel pressure relief cavity and the fuel flow through hole, and a small part of the fuel flows out of the first fuel outlet (on the circumferential side wall of the shell assembly) from the first flow channel opening, the first partition and the outlet filter screen.
The fuel filter (filter) can adjust the flow channel of the fuel according to the flow at the fuel inlet so as to ensure that the fuel passing through the first path can be kept in a high flow speed state under the condition of small total flow (the first flow channel opening is matched with the trapezoid protruding structure, the first flow channel opening divides the fuel at the inlet to be approximately parallel to the direction of the outlet filter screen, the flow area of the fuel is instantly reduced by utilizing the trapezoid protruding structure, the flow area is reduced under the condition of keeping the total flow unchanged, the flow speed of the fuel is increased, and the surface of the outlet filter screen is further scoured), so that the high-flow-speed scouring of the fuel on the outlet filter screen (arranged at the first fuel outlet) is realized, and the filter screen has a self-cleaning function.
In the invention, the first flow passage is positioned outside the second flow passage and is closer to the outlet filter screen, so that the fuel entering from the fuel inlet is divided and guided to the outlet filter screen, and the surface of the flow valve shell is matched to play a role of self-cleaning the outlet filter screen (the fuel not only scours the surface of the outlet filter screen from the tangential direction, but also scours the filter screen from the normal direction, has a bidirectional function, ensures that the outlet filter screen maintains a normal high-precision filtering function, reduces the period and frequency for disassembling the fuel filter for cleaning), and also meets the purpose of dividing the fuel to different outlets.
The fuel filter is provided with the two fuel outlets in the axial direction and the circumferential direction, wherein the first fuel outlet is provided with the outlet filter screen with higher filtering grade, so that fuel subjected to double filtering (the inlet filter screen assembly and the outlet filter screen) can be supplied to the fuel servo oil circuit, the requirement of products such as a servo valve in the fuel servo oil circuit on high-cleanliness fuel is met, the fuel at the second fuel outlet is mainly used for combustion, high-precision filtering is not needed, and the inlet filter screen assembly can meet the requirement.
Compared with the prior art, the invention provides a self-cleaning scheme for the fuel filter of the fuel system, can improve the pollutant resistance of the fuel system, reduce the system maintenance frequency and improve the working reliability of the fuel filter.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a cross-sectional view of a front view of an inlet screen assembly of the present invention;
FIG. 3 is a top view of an inlet screen assembly of the present invention;
FIG. 4 is a block diagram of the flow valve assembly of the present invention;
in the figure: 1. the fuel oil pressure relief valve comprises a self-locking nut, 2, a shell assembly, 3, a first sealing ring, 4, a circlip for a first hole, 5, an inlet filter screen assembly, 6, a flow valve assembly, 7, a second sealing ring, 8, a circlip for a second hole, 9, a first interval, 10, an outlet filter screen, 11, a second interval, 12, a fuel oil circulation hole, 13, a positioning bulge, 51, a top cover, 52, an inlet filter screen, 53, a bottom cover, 31, a fuel oil acceleration flow passage opening, 32, an overflow flow passage opening, 61, a flow valve shell, 62, a flow valve shaft, 63, a flow valve core, 64, a cylindrical spring, 65, a gasket, 66, a fuel oil pressure relief cavity, 67, a limiting structure, 68, a trapezoidal protruding structure and 69, a protruding limiting structure.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but it should not be understood that the scope of the subject matter of the present invention is limited to the following embodiments, and various modifications, substitutions and alterations made based on the common technical knowledge and conventional means in the art without departing from the technical idea of the present invention are included in the scope of the present invention.
Note that the axial direction in fig. 1 to 4 refers to the axial direction of the assembly, for example, a chain line in the vertical direction drawn in fig. 1, and the circumferential direction refers to the circumferential direction with the axial direction as the rotation axis. The end surface in the axial direction means an end surface perpendicular to the axis.
As shown in fig. 1, the flow adaptive self-cleaning fuel filter mainly comprises an inlet filter screen assembly 5, a flow valve assembly 6 and a shell assembly 2, wherein the inlet filter screen assembly 5 and the flow valve assembly 6 are assembled inside the shell assembly 2.
In fig. 1, the upper end of the housing assembly 2 is a fuel inlet, the lower end is a second fuel outlet, the circumferential surface is provided with a first fuel outlet, and the circumferential surface of the housing assembly 2 is provided with a first sealing ring 3 and a second sealing ring 7 respectively near the fuel inlet and the second fuel outlet.
the end of the flow valve shaft 62 with the fuel oil through hole 12 is positioned at a second fuel oil outlet in the shell assembly 2, and the outer diameter of the flow valve shaft 62 at the position is matched with the inner diameter of the shell assembly 2;
the flow valve core 63 can enable the blocking bulge on the surface of the flow valve core 63 to be tightly propped and inserted into the second flow port of the flow valve shell 61 under the elastic force action of the cylindrical spring 64;
the inlet screen assembly 5 is held fixedly without looseness by the self-locking nut 1 and the valve housing 61 axially clamped to the first end face.
After the flow valve assembly 6 is assembled inside the housing assembly 2, a first space 9 is formed between the circumferential surface of the flow valve assembly 6 and the inner wall of the housing assembly 2, and a second space 11 is formed between the lower end of the flow valve assembly 6 and the end of the flow valve shaft 62 having the fuel flow hole 12.
As shown in fig. 1 and 2, the inlet screen assembly 5 includes a top cover 51, an inlet screen 52 and a bottom cover 53, the filtering equivalent diameter of the inlet screen 52 is millimeter level, the top cover 51 and the bottom cover 53 clamp the inlet screen 52 therebetween, the bottom cover 53 has a first positioning hole, the inlet screen 52 has a third positioning hole, the top cover 51 has a positioning block on its surface, the flow valve housing 61 has a second positioning hole on its axial first end surface, during assembly, the positioning block is inserted into the first positioning hole, the second positioning hole and the third positioning hole, so that the inlet screen assembly 5 does not rotate relative to the flow valve assembly 6.
As shown in fig. 3, notches are formed in the top cover 51 and the bottom cover 53 of the inlet filter screen assembly 5, the notches are divided into an inner ring notch and an outer ring notch, the outer diameter of the inner ring notch is smaller than the inner diameter of the fuel pressure relief cavity 66, the inner diameter of the outer ring notch is larger than the inner diameter of the fuel pressure relief cavity 66, the inner ring notch is not communicated with the outer ring notch, similarly, a first flow passage and a second flow passage are formed in the axial first end surface of the flow valve housing 61, the first flow passage is communicated with the outer ring notch, and the second flow passage is communicated with the inner ring notch. The first flow passage and the outer annular notch form an accelerated fuel flow port 31 and the second flow passage and the inner annular notch form an overflow flow port 32.
Referring to fig. 1, a fuel inlet, a fuel acceleration passage opening 31, a first interval 9 and a first fuel outlet form a fuel acceleration passage, and a fuel inlet, an overflow passage opening 32, a fuel pressure relief cavity 66, a second interval 11 and a fuel flow through hole 12 form an overflow passage.
The inlet filter screen assembly 5 is fixedly connected with the flow valve shell 61 through a self-locking nut 1 and an axial positioning block. After the inlet filter screen assembly 5 is assembled on the flow valve assembly 6, the first hole circlip 4 is limited in the shell assembly 2, and the inner diameter of the first hole circlip 4 is smaller than the outer diameters of the inlet filter screen assembly 5 and the flow valve assembly 6. The shell assembly 2 is provided with a second hole elastic check ring 8 close to a second fuel outlet, the situation that the flow valve assembly 6 fails to damage a rear structural part of a fuel system after the self-locking nut 1 fails can be prevented, and the inner diameter of the second hole elastic check ring 8 is smaller than the outer diameter of one end of the flow valve shaft 62 with the fuel circulation hole 12. The inner wall of the flow valve shell 61 is provided with a cuboid-shaped limiting structure 67, the limiting structure 67 is parallel to the flow valve shaft 62, and the flow valve core 63 is inserted into the limiting structure 67, so that the flow valve core 63 can only move up and down on the flow valve shaft 62, and the flow valve core 63 can be prevented from rotating around the axial direction of the flow valve shaft 62 in the working process. The circumferential surface of the flow shutter case 61 is further provided with a trapezoidal protruding structure 68 protruding outward, and the trapezoidal protruding structure 68 is located in the first space 9, so that the flow speed of the fuel in the flow passage can be further accelerated locally in the fuel passage formed by the first space 9. The flow valve shaft 62 is designed with a protruding limit structure 69 near the middle position, which can prevent the flow valve core 63 from displacing more than the maximum deformation of the cylindrical spring 64 under the fuel impact.
The inlet screen 52 in the inlet screen assembly 5 may filter contaminants having an equivalent diameter on the order of millimeters. As shown in fig. 1 and fig. 3, the inlet screen assembly 5 and the axial first end face of the flow valve housing 61 form a flow dividing structure, that is, the notch on the inlet screen assembly 5 in fig. 3 and the first flow port and the second flow port on the axial first end face of the flow valve housing 61 jointly form the fuel acceleration flow port 31 and the overflow flow port 32 (as an option, the shape of the first flow port and the second flow port may be the same as the shape and the position of the notch in fig. 3, but actually, only the notch is ensured to be communicated with the first flow port and the second flow port and form the fuel acceleration flow port 31 and the overflow flow port 32 which are not communicated with each other), and the fuel can be divided into the acceleration flow port fuel and the overflow flow port fuel. When the flow valve core 63 is closed, the fuel mainly passes through a fuel channel formed by the fuel accelerating runner port 31 and the first interval 9, then flows out of the first fuel outlet, and partially flows out of the second fuel outlet after passing through the fuel flow through hole 12 from the second interval 11; when the fuel flow increases to the designed opening value of the flow valve assembly 6, the valve core 63 of the flow valve is opened, the system releases the pressure, the fuel mainly enters the fuel pressure release cavity 66 from the overflow channel port 32, and flows out of the second fuel outlet after passing through the second interval 11 and the fuel flow through hole 12. An outlet screen 10 capable of filtering pollutants with the equivalent diameter of micron is arranged at the first fuel outlet on the side wall of the shell component 2. Part of the fuel flowing through the accelerating flow passage passes through the micron-sized outlet screen 10 in the housing assembly 2 and then flows to the flow passage requiring high fuel cleanliness. As the diameter of the mesh of the outlet filter screen 10 on the side wall of the shell component 2 is micron-sized and is easy to block, the invention uses high-speed fuel accelerated by the accelerating flow passage to continuously wash the outlet filter screen 10 along the axial direction so as to achieve the purpose of self-cleaning the outlet filter screen 10.
As shown in fig. 1, the fuel oil flows into the fuel oil filter after being roughly filtered by the inlet filter screen assembly 5 from the fuel oil inlet; when the fuel flow is smaller than the designed opening value of the flow valve assembly 6, most of the fuel flows through the fuel accelerating flow channel to wash and clean the outlet filter screen 10 in the shell assembly 2 and then flows to the lower-level system through the second fuel outlet. When the fuel flow is larger than the designed opening value of the flow valve assembly 6, the flow valve core 63 in the flow valve assembly 6 is opened, and the fuel filter starts to release pressure.
Claims (9)
1. The utility model provides a flow adaptation type automatically cleaning fuel is strained which characterized in that: comprises the steps of (a) preparing a substrate,
the fuel oil pump comprises a shell assembly (2), wherein the shell assembly (2) comprises a fuel oil inlet, a first fuel oil outlet and a second fuel oil outlet, the fuel oil inlet and the second fuel oil outlet are respectively positioned at two ends of the shell assembly (2) in the axial direction, and the first fuel oil outlet is positioned on the circumferential surface of the shell assembly (2);
a flow valve assembly (6), the flow valve assembly (6) being assembled inside the housing assembly (2) and comprising a flow valve housing (61), a flow valve shaft (62), a flow valve spool (63) and a spring, wherein,
a first flow channel opening and a second flow channel opening which are not communicated with each other are formed in the first axial end face of the flow valve shell (61), a first interval (9) is formed between the circumferential surface of the flow valve shell (61) and a fuel outlet in the circumferential surface of the shell assembly (2), a fuel channel is formed by the first interval (9), the fuel channel is communicated with the first flow channel opening, a fuel pressure relief cavity (66) is formed in the flow valve shell (61), and the fuel pressure relief cavity (66) is communicated with the second flow channel opening;
one end of the flow valve shaft (62) penetrates through the fuel oil pressure relief cavity (66) and then is detachably connected to the axial first end face of the flow valve shell (61), the other end of the flow valve shaft extends to a second fuel oil outlet of the shell assembly (2), a second interval (11) is arranged between the other end of the flow valve shaft and the flow valve shell (61), the second interval (11) is communicated with the fuel oil channel, a fuel oil circulation hole (12) is formed in one end, located at the second fuel oil outlet, of the flow valve shaft (62), and two ends of the fuel oil circulation hole (12) are respectively communicated with the second interval and the second fuel oil outlet;
the spring is sleeved on the flow valve shaft (62);
the flow valve core (63) is sleeved on the flow valve shaft (62), the flow valve core (63) is positioned between the spring and the flow valve shell (61), a plugging bulge is arranged on the flow valve core (63), and the plugging bulge is inserted into a second flow passage of the flow valve shell (61);
the inlet filter screen assembly (5) is positioned between a fuel inlet and the flow valve shell (61) on the shell assembly (2), the inlet filter screen assembly (5) comprises a fuel accelerating runner opening (31) and an overflow runner opening (32), the fuel accelerating runner opening (31) is communicated with the first runner, and the overflow runner opening (32) is communicated with the second runner;
an outlet screen (10), the outlet screen (10) is located at the first fuel outlet, and the filtration equivalent diameter of the outlet screen (10) is less than the filtration equivalent diameter of the inlet screen assembly (5).
2. The flow adaptive self-cleaning fuel filter of claim 1, wherein: the flow valve is characterized in that a positioning bulge (13) is arranged in the shell component (2), and the flow valve shell (61) is in lap joint with the positioning bulge (13) in the shell component (2).
3. The flow adaptive self-cleaning fuel filter according to claim 1, wherein: still include circlip (4) for first hole and circlip (8) for the second hole, circlip (4) for the first hole is located the fuel entrance of casing subassembly (2), circlip (8) for the second hole is located second fuel exit, and import filter screen subassembly (5) and flow valve subassembly (6) are located between circlip (4) for the first hole and circlip (8) for the second hole.
4. The flow adaptive self-cleaning fuel filter according to claim 1, wherein: also comprises a step of adding a new type of additive,
an external thread located on an outer surface of one end of the flow valve shaft (62);
an internal threaded bore located on an axial first end face of the flow valve housing (61);
a through hole located on the inlet screen assembly (5);
the flow valve is characterized by comprising a self-locking nut (1), wherein one end of the flow valve shaft (62) with an external thread penetrates through an internal thread hole in the axial first end face of the flow valve shell (61) and a through hole in the inlet filter screen assembly (5) in sequence and then is in threaded connection with the self-locking nut (1).
5. The flow adaptive self-cleaning fuel filter of claim 1, wherein: the inlet filter screen assembly (5) comprises a top cover (51), an inlet filter screen (52) and a bottom cover (53), wherein the inlet filter screen (52) is positioned between the top cover (51) and the bottom cover (53), the top cover (51) and the bottom cover (53) are both provided with notches, and the notches form a fuel oil acceleration flow passage opening (31) and an overflow flow passage opening (32).
6. The flow adaptive self-cleaning fuel filter of claim 5, wherein: also comprises the following steps of (1) preparing,
a first positioning hole located on the bottom cover (53);
a second positioning hole located on an axial first end face of the flow valve housing (61);
a third locating hole located on the inlet screen (52);
and the positioning block is positioned on the surface of the top cover (51) and is inserted into the first positioning hole, the second positioning hole and the third positioning hole.
7. The flow adaptive self-cleaning fuel filter of claim 1, wherein: the flow valve is characterized by further comprising a limiting structure (67), wherein the limiting structure (67) is arranged on the inner wall of the shell assembly (2), and the limiting structure (67) is parallel to the axis direction of the flow valve shaft (62).
8. The flow adaptive self-cleaning fuel filter of claim 1, wherein: the flow valve is characterized by further comprising a protruding limiting structure (69), wherein the protruding limiting structure (69) is arranged on the flow valve shaft (62), and the outer diameter of the protruding limiting structure (69) is larger than the inner diameter of a sleeving hole at the sleeving part of the flow valve core (63) and the flow valve shaft (62).
9. The flow adaptive self-cleaning fuel filter of claim 1, wherein: and the shell further comprises a trapezoidal protruding structure (68), wherein the trapezoidal protruding structure (68) is positioned on the circumferential surface of the shell component (2) and protrudes towards the inner side of the first interval (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210011095.1A CN114225494B (en) | 2022-01-05 | 2022-01-05 | Flow adaptive self-cleaning fuel filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210011095.1A CN114225494B (en) | 2022-01-05 | 2022-01-05 | Flow adaptive self-cleaning fuel filter |
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| Publication Number | Publication Date |
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| CN114225494A CN114225494A (en) | 2022-03-25 |
| CN114225494B true CN114225494B (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210011095.1A Active CN114225494B (en) | 2022-01-05 | 2022-01-05 | Flow adaptive self-cleaning fuel filter |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5647328A (en) * | 1995-06-30 | 1997-07-15 | Walbro Corporation | In-tank fuel pump and reservoir |
| CN106457084A (en) * | 2014-06-11 | 2017-02-22 | 博尔和柯基滤清器有限责任公司 | Backflush filter and filter insert for the latter |
| CN108031158A (en) * | 2017-12-21 | 2018-05-15 | 玉环县红日阀门有限公司 | Purifier and its control method with leak-proof anti-explosive and automatic cleaning function |
| WO2019060727A1 (en) * | 2017-09-25 | 2019-03-28 | Cummins Filtration Ip, Inc. | Fuel filter cartridges with automated air-bleeding internal features |
| CN209839235U (en) * | 2019-03-20 | 2019-12-24 | 宁波凯明机器制造有限公司 | Three-way valve |
| CN210751542U (en) * | 2019-06-25 | 2020-06-16 | 华帝股份有限公司 | Water inlet valve body with novel filtering structure |
| CN213760748U (en) * | 2020-11-10 | 2021-07-23 | 苏州碧螺天然泉食品饮料有限公司 | Precision filter convenient for replacing filter element |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100405152B1 (en) * | 2001-06-07 | 2003-11-14 | 은석규 | Variable Pore Micro Filter Having Simple and Compact Structure Capable of Side Stream Filtration and Cross Flow Filtration |
| US20050029172A1 (en) * | 2003-08-07 | 2005-02-10 | Suntec Industries Incorporated | Filter head and burner system incorporating same |
| CN101450270A (en) * | 2007-12-07 | 2009-06-10 | 杜也兵 | Water purifier tube connection method |
| EP2451551B1 (en) * | 2009-07-08 | 2016-09-07 | Cummins Filtration IP, INC. | Dual stage filtration with barrier for fuel water separation |
| EP3904667A1 (en) * | 2020-04-28 | 2021-11-03 | Hamilton Sundstrand Corporation | Fuel filter assembly |
-
2022
- 2022-01-05 CN CN202210011095.1A patent/CN114225494B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5647328A (en) * | 1995-06-30 | 1997-07-15 | Walbro Corporation | In-tank fuel pump and reservoir |
| CN106457084A (en) * | 2014-06-11 | 2017-02-22 | 博尔和柯基滤清器有限责任公司 | Backflush filter and filter insert for the latter |
| WO2019060727A1 (en) * | 2017-09-25 | 2019-03-28 | Cummins Filtration Ip, Inc. | Fuel filter cartridges with automated air-bleeding internal features |
| CN108031158A (en) * | 2017-12-21 | 2018-05-15 | 玉环县红日阀门有限公司 | Purifier and its control method with leak-proof anti-explosive and automatic cleaning function |
| CN209839235U (en) * | 2019-03-20 | 2019-12-24 | 宁波凯明机器制造有限公司 | Three-way valve |
| CN210751542U (en) * | 2019-06-25 | 2020-06-16 | 华帝股份有限公司 | Water inlet valve body with novel filtering structure |
| CN213760748U (en) * | 2020-11-10 | 2021-07-23 | 苏州碧螺天然泉食品饮料有限公司 | Precision filter convenient for replacing filter element |
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