CN111878273B - Filter element assembly and fuel filter - Google Patents
Filter element assembly and fuel filter Download PDFInfo
- Publication number
- CN111878273B CN111878273B CN202010865402.3A CN202010865402A CN111878273B CN 111878273 B CN111878273 B CN 111878273B CN 202010865402 A CN202010865402 A CN 202010865402A CN 111878273 B CN111878273 B CN 111878273B
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- Prior art keywords
- filter element
- oil
- float
- element assembly
- filter
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/54—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by air purging means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
- F02M37/34—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements by the filter structure, e.g. honeycomb, mesh or fibrous
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
- F02M37/42—Installation or removal of filters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtration Of Liquid (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a filter element assembly and a fuel filter, and belongs to the technical field of automobile parts. The filter element assembly comprises a filter element body, an upper end cover and a float, wherein an oil outlet channel is formed in the filter element body, the upper end cover is arranged on the filter element body, an exhaust hole communicated with the oil outlet channel is formed in the peripheral surface of the upper end cover, the float is rotatably connected to the upper end cover and is arranged at intervals with the exhaust hole, the density of the float is smaller than that of oil and greater than that of air, when the liquid level of the oil on the end surface of the upper end cover is higher than that of the exhaust hole, the float can seal the exhaust hole, and when the liquid level of the oil is not higher than that of the exhaust hole, the oil outlet channel is communicated with the outside of the filter element assembly through the exhaust hole. The fuel filter comprises the filter element assembly. According to the filter element assembly and the fuel filter, the vent hole and the buoy are arranged on the upper end cover, so that not only can the exhaust be realized, but also the potential risk caused by the fact that unfiltered oil enters the oil outlet channel can be avoided.
Description
Technical Field
The invention relates to the technical field of automobile parts, in particular to a filter element assembly and a fuel filter.
Background
Along with the gradual upgrading of the national requirements on the emission standard of pollutants of motor vehicles, the requirements of an oil system on the filtering precision of a fuel filter are higher and higher, but along with the improvement of the filtering precision of the fuel filter, the air in the fuel filter is difficult to pass through a filter layer to go to the downstream, so that a large amount of air is gathered in the filter, and after the accumulated air is accumulated to a certain proportion, the oil supply of an engine is not smooth, and even the engine is flameout. The main scheme for solving the problem of gas accumulation of the filter is that a bypass valve is arranged between the upstream and the downstream, but after the bypass valve is opened, part of unfiltered oil flows to the downstream, and the downstream parts are blocked or early ground.
Disclosure of Invention
An object of the present invention is to provide a filter element assembly that effectively solves the filter exhaust problem while avoiding the potential risk of unfiltered oil entering the oil outlet passage.
To achieve the purpose, the invention adopts the following technical scheme:
A filter cartridge assembly comprising:
The filter element body is provided with an oil outlet channel;
the upper end cover is arranged on the filter element body, and the peripheral surface of the upper end cover is provided with an exhaust hole communicated with the oil outlet channel;
the oil outlet channel is communicated with the outside of the filter element component through the exhaust hole when the liquid level of the oil on the end face of the upper end cover is higher than the height of the exhaust hole.
Optionally, the cross section of cursory is "<" type, and cursory both ends are movable part and connecting portion respectively, and connecting portion and upper end cover rotate to be connected.
Alternatively, the movable portion can abut on an end face of the upper end cap.
Optionally, the float further comprises a blocking portion, the blocking portion is disposed between the movable portion and the top end of the float, or the blocking portion is disposed between the connecting portion and the top end of the float.
Optionally, a groove is arranged between the exhaust hole and the end face of the upper end cover, and the connecting part is rotationally connected in the groove.
Optionally, the vent is close to the one end of cursory and is provided with the inclined plane, and shutoff portion is dull and stereotyped form, and shutoff portion can cooperate with the inclined plane.
Optionally, the included angle between the inclined plane and the end face of the upper end cover is alpha, wherein alpha is more than or equal to 15 degrees and less than or equal to 45 degrees.
Optionally, the upper end cover is connected with a mounting shaft, and the buoy is rotationally connected with the mounting shaft.
Optionally, the exhaust hole is a stepped hole, and the aperture of one side of the stepped hole close to the oil outlet channel is smaller than the aperture of one side of the stepped hole far away from the oil outlet channel.
It is another object of the present invention to provide a fuel filter that effectively addresses filter venting while avoiding the potential risk of unfiltered oil entering the oil outlet passage.
To achieve the purpose, the invention adopts the following technical scheme:
A fuel filter comprises the filter element assembly.
The invention has the beneficial effects that:
When the electric pump pumps oil, air in the filter is discharged to the oil outlet channel through the air outlet hole, so that gas is prevented from gathering in the fuel filter, and when the liquid level of oil rises to a position above the air outlet hole, the float rotates under the buoyancy of the oil and seals the air outlet hole under the suction of the oil pump, so that unfiltered oil is prevented from entering the oil outlet channel. Through set up the exhaust hole on upper end cover, can effectively solve the filter exhaust problem, through setting up cursory simultaneously, can avoid unfiltered fluid to get into the oil-out passageway and produce the potential risk.
According to the fuel filter provided by the invention, the filter element assembly is adopted, so that the exhaust problem of the filter is effectively solved, and the potential risk caused by the fact that unfiltered oil enters the oil outlet channel is avoided.
Drawings
FIG. 1 is a schematic illustration of a cartridge assembly provided in accordance with an embodiment of the present invention;
FIG. 2 is an enlarged view at A of FIG. 1;
Fig. 3 is a schematic view of a fuel filter according to an embodiment of the present invention.
In the figure:
100-filter element components, 200-belt motor pump base sub-assemblies, 201-oil inlets, 202-oil outlets, 203-discharge ports, 300-transparent shell sub-assemblies, 301-bosses and 400-third sealing rings;
1-an upper end cover, 11-an exhaust hole, 111-an inclined surface, 12-a groove, 2-a buoy, 21-a plugging part, 22-a movable part, 23-a connecting part, 3-a mounting shaft, 4-a first sealing ring, 5-a second sealing ring, 6-a lower end cover, 7-a filter element body and 71-an oil outlet channel.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may, for example, be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The present embodiment provides a filter cartridge assembly 100 comprising a filter cartridge body 7, an upper end cap 1 and a float 2. Specifically, as shown in fig. 1, an oil outlet channel 71 is formed in the filter element body 7, an upper end cover 1 is arranged on the filter element body 7, an exhaust hole 11 communicated with the oil outlet channel 71 is formed in the peripheral surface of the upper end cover 1, a float 2 is rotatably connected to the upper end cover 1 and is arranged at intervals from the exhaust hole 11, the density of the float 2 is smaller than that of oil and greater than that of air, when the liquid level of the oil on the end surface of the upper end cover 1 is higher than that of the exhaust hole 11, the float 2 can seal the exhaust hole 11, and when the liquid level of the oil is not higher than that of the exhaust hole 11, the oil outlet channel 71 is communicated with the outside of the filter element assembly through the exhaust hole 11.
When the electric pump pumps oil, oil vapor or air in the filter is discharged to the oil outlet channel 71 through the air outlet channel 11 and then discharged to the downstream to avoid the air gathering in the fuel filter, when the liquid level of the oil rises to a position above the air outlet channel 11, the air outlet channel 71 is in a negative pressure state because the density of the float 2 is smaller than that of the oil, when the float 2 is in normal operation, the float 2 is adsorbed on the air outlet channel 11 under the negative pressure effect, the intermittent release of the float 2 due to fluctuation of the liquid level is avoided, and the float 2 is naturally drooped and disconnected until the liquid level of the oil is not higher than the height of the air outlet channel 11. By providing the exhaust hole 11 on the upper end cap 1, the filter exhaust problem can be effectively solved, and simultaneously by providing the float 2, the potential risk caused by the unfiltered oil entering the oil outlet passage 71 can be avoided.
Specifically, the filter element body 7 includes filter paper, the oil outlet channel 71 is a through hole arranged at the inner side of the filter paper, and when the normal oil pumping work, the oil is filtered by the filter paper and discharged through the oil outlet channel 71.
In this embodiment, the float 2 is "in the form of a" type ", the movable portion 22 and the connecting portion 23 are respectively disposed at two end points of the float 2, wherein the connecting portion 23 is rotatably connected with the upper end cover 1, the float 2 has a simple structure, reduces the buoyancy required by rotation of the float 2, improves the reliability of blocking the exhaust hole 11, and is convenient for processing and installation. Further alternatively, the movable portion 22 can be abutted against the end face of the upper end cover 1, so that the depth of the float 2 in oil is increased, the buoyancy force exerted on the float 2 is improved, the float 2 can rotate conveniently, and the reliability of the float 2 for blocking the exhaust hole 11 is further improved.
Further alternatively, the float 2 further comprises a blocking part 21, wherein the blocking part 21 is arranged between the movable part 22 and the top end of the float 2, at this time, the movable part 22 is arranged close to the vent hole 11, the connecting part 23 is arranged far away from the vent hole 11, and the connecting part 23 is connected to the end face of the upper end cover 1, so that when the connecting part 23 rotates, the blocking part 21 is further convenient to be close to the vent hole 11 and can block the vent hole 11, alternatively, the blocking part 21 is arranged between the connecting part 23 and the top end of the float 2, at this time, the connecting part 23 is close to the vent hole 11 and is rotationally connected, the movable part 22 is arranged far away from the vent hole 11, in this embodiment, the connecting part 23 is rotationally connected to the peripheral face of the upper end cover 1, so that the blocking part 21 is close to the vent hole 11 and can block the vent hole 11, and in other embodiments, the connecting part 23 can also be rotationally connected to the end face of the upper end cover 1.
In other embodiments, the float 2 may be of an "N" type, and the two points at the bottom end are a movable portion 22 and a connecting portion 23, respectively, and similarly, the movable portion 22 or the connecting portion 23 is disposed near the exhaust hole 11, and one side near the exhaust hole 11 is disposed as a blocking portion 21 to block the exhaust hole 11.
Optionally, a groove 12 is arranged between the exhaust hole 11 and the end surface of the upper end cover 1, and the connecting part 23 is rotatably connected in the groove 12, so that the connection between the buoy 2 and the upper end cover 1 is more compact.
Optionally, the vent hole 11 is provided with inclined plane 111 near the one end of cursory 2, and shutoff portion 21 is dull and stereotyped form, and shutoff portion 21 can cooperate with inclined plane 111, makes shutoff portion 21 and inclined plane 111 laminating, has improved the shutoff effect of vent hole 11.
In this embodiment, the included angle between the inclined plane 111 and the end face of the upper end cover 1 is α, where α is 15 ° or more and 45 ° or less, so that the float 2 is convenient to seal the exhaust hole 11, the included angle is prevented from being too large, the float 2 is required to rotate by too large angle, the requirement of the float 2 on buoyancy is small, and the sealing reliability is improved, and preferably α is 30 °.
Optionally, the upper end cover 1 is connected with a mounting shaft 3, the float 2 is rotationally connected with the mounting shaft 3, and further rotational connection of the float 2 and the upper end cover 1 is achieved, specifically, the mounting shaft 3 can be a rivet, the float 2 is rotationally connected to the rivet, and the rivet is riveted on the upper end cover 1, so that the mounting is facilitated. Further alternatively, the buoy 2 and the mounting shaft 3 are connected through bearings, friction between the buoy 2 and the mounting shaft 3 is reduced, the buoy 2 is convenient to rotate, buoyancy requirements are reduced, and plugging reliability of the exhaust hole 11 is improved.
Because the negative pressure in the oil outlet channel 11 is great, the outside material of filter element assembly easily enters into the oil outlet channel 11 through the exhaust hole 11, in order to prevent large particles from entering into the oil outlet channel 11 through the exhaust hole 11 and affecting subsequent work, generally, the aperture of the exhaust hole 11 is smaller, however, the upper end cover 1 is usually processed by injection molding, the exhaust hole 11 is obtained through core pulling, when the aperture of the exhaust hole 11 is too small and the length of the exhaust hole 11 is longer, the core pulling is easy to break, the core pulling is inconvenient and the production cost is increased. In order to solve the above problems, the vent hole 11 is optionally a stepped hole, the aperture of the stepped hole on the side close to the oil outlet channel 71 is smaller than the aperture of the stepped hole on the side far from the oil outlet channel 71, so as to meet the requirement of preventing the large particles from passing through, the stepped hole far from the oil outlet channel 71 is convenient for core pulling, and the production manufacturability is improved, in particular, the size of the small aperture of the vent hole 11 corresponds to the ventilation flow, and can be adjusted accordingly according to the size and type of the product.
The unavoidable oil vapor and air in the oil tank can flow into the filter, and after the accuracy of the filter paper is improved, the vapor and air in the oil can not be discharged through the filter paper, so that the vapor and the air are gathered outside the filter paper, and after a certain proportion is accumulated, the engine can be prevented from being supplied with oil, and even flameout occurs.
The present embodiment provides a fuel filter, which includes the filter element assembly 100 described above, so as to effectively solve the filter exhaust problem, avoid flameout of the engine due to gas accumulation of the oil system, and simultaneously avoid potential risks caused by the entry of unfiltered oil into the oil outlet channel 71, and prevent downstream parts from being stuck and early-ground due to unfiltered oil.
Optionally, the fuel filter further comprises an electric pump base sub-assembly 200 and a transparent shell sub-assembly 300, the filter element assembly 100 is assembled inside the electric pump base sub-assembly 200 and the transparent shell sub-assembly 300, specifically, the filter element assembly 100 further comprises a lower end cover 6, a first sealing ring 4 and a second sealing ring 5 are respectively arranged on the upper end cover 1 and the lower end cover 6, the upper end cover 1 is in circumferential sealing connection with the electric pump base sub-assembly 200, the lower end cover 6 is in circumferential sealing connection with the transparent shell sub-assembly 300, specifically, the electric pump base sub-assembly 200 and the transparent shell sub-assembly 300 are in threaded connection, and a third sealing ring 400 is arranged at the connection position, so that circumferential sealing of the electric pump base sub-assembly 200 and the transparent shell sub-assembly 300 is achieved. Specifically, the boss 301 is disposed inside the transparent casing subassembly 300, so that the transparent casing subassembly 300 is convenient to position with the base subassembly 200 with the electric pump after being screwed up, and a space between the base subassembly 200 with the electric pump and the transparent casing subassembly 300 is used for installing the filter element assembly 100, so that the filter element assembly 100 is convenient to position and fix in the vertical direction, and stable and reliable installation is ensured. Optionally, the base subassembly 200 of the electric pump is provided with an oil inlet 201 and an oil outlet 202, and the transparent casing subassembly 300 is provided with a discharge opening 203.
The working process of the fuel filter comprises the following steps:
Oil enters the filter from the oil inlet 201, is filtered by filter paper at the periphery of the filter element assembly, is discharged from the oil outlet 202 through the oil outlet channel 71, and flows in the direction of O-P-Q-R as shown in figure 3, and water filtered by the oil through the filter element assembly 100 is discharged through the discharge port 203.
When the oil vapor and air in the oil tank gather outside the filter paper, and when the oil liquid level does not reach the position above the exhaust hole 11, the oil vapor and air enter the oil outlet channel 71 through the exhaust hole 11 on the upper end cover 1 and finally are discharged from the exhaust hole 203, and after the oil liquid level reaches the position above the exhaust hole 11, the air outlet channel 71 can be blocked by the buoy 2, so that unfiltered oil can be prevented from entering the oil outlet channel 71.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (10)
1. A filter cartridge assembly, comprising:
The filter element body (7) is provided with an oil outlet channel (71);
The upper end cover (1) is arranged on the filter element body (7), and the peripheral surface of the upper end cover (1) is provided with an exhaust hole (11) communicated with the oil outlet channel (71);
The buoy (2) is rotationally connected to the upper end cover (1) and is arranged at intervals with the exhaust hole (11), the density of the buoy (2) is smaller than that of oil liquid and is larger than that of air, and when the liquid level of the oil liquid on the end face of the upper end cover (1) is higher than that of the exhaust hole (11), the buoy (2) can seal the exhaust hole (11); when the liquid level of the oil is not higher than the height of the exhaust hole (11), the oil outlet channel (71) is communicated with the outside of the filter element assembly through the exhaust hole (11);
The filter element body (7) comprises filter paper, the oil outlet channel (71) is a through hole arranged on the inner side of the filter paper, and when the normal oil pumping work is carried out, oil is filtered through the filter paper and is discharged through the oil outlet channel (71).
2. The filter element assembly according to claim 1, wherein the cross section of the float (2) is in a shape of a "<", two ends of the float (2) are respectively provided with a movable part (22) and a connecting part (23), and the connecting part (23) is rotatably connected with the upper end cover (1).
3. A filter element assembly according to claim 2, wherein the movable portion (22) is abuttable against an end face of the upper end cap (1).
4. The filter element assembly according to claim 2, wherein the float (2) further comprises a blocking portion (21), the blocking portion (21) being arranged between the movable portion (22) and the top end of the float (2) or the blocking portion (21) being arranged between the connecting portion (23) and the top end of the float (2).
5. The filter element assembly according to claim 4, wherein an end of the vent hole (11) adjacent to the float (2) is provided with a slope (111), the blocking portion (21) is flat, and the blocking portion (21) can be matched with the slope (111).
6. A filter element assembly according to claim 5, wherein the inclined surface (111) forms an angle α with the end face of the upper end cap (1), wherein 15 ° is equal to or less than 45 °.
7. A filter element assembly according to claim 2, wherein a recess (12) is provided between the vent hole (11) and the end face of the upper end cap (1), and the connecting portion (23) is rotatably connected in the recess (12).
8. A filter element assembly according to any one of claims 1-7, wherein a mounting shaft (3) is connected to the upper end cap (1), the float (2) being in rotational connection with the mounting shaft (3).
9. A filter element assembly according to any one of claims 1-7, wherein the vent hole (11) is a stepped hole, the hole diameter of the stepped hole on the side close to the oil outlet passage (71) being smaller than the hole diameter of the stepped hole on the side remote from the oil outlet passage (71).
10. A fuel filter comprising the filter element assembly of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010865402.3A CN111878273B (en) | 2020-08-25 | 2020-08-25 | Filter element assembly and fuel filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010865402.3A CN111878273B (en) | 2020-08-25 | 2020-08-25 | Filter element assembly and fuel filter |
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| Publication Number | Publication Date |
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| CN111878273A CN111878273A (en) | 2020-11-03 |
| CN111878273B true CN111878273B (en) | 2025-03-18 |
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| CN202010865402.3A Active CN111878273B (en) | 2020-08-25 | 2020-08-25 | Filter element assembly and fuel filter |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116163869B (en) * | 2023-03-15 | 2024-05-14 | 一汽解放汽车有限公司 | Exhaust structure, fuel filter and vehicle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212535900U (en) * | 2020-08-25 | 2021-02-12 | 上海弗列加滤清器有限公司 | Filter element assembly and fuel filter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2533667A1 (en) * | 1982-09-24 | 1984-03-30 | Thibonnet Bernard | Automatic bleed. |
| US6742536B2 (en) * | 2001-11-13 | 2004-06-01 | Eaton Corporation | Attachment of fuel vapor vent valve to the inside of a fuel tank |
| FR2905442B1 (en) * | 2006-09-04 | 2012-04-20 | Inergy Automotive Systems Res | VALVE FOR AIR FLOW CIRCUIT OF A LIQUID TANK |
| DE102014109044A1 (en) * | 2014-06-27 | 2015-12-31 | Hengst Se & Co. Kg | Fuel filter with bleeder valve |
| CN206545557U (en) * | 2017-03-09 | 2017-10-10 | 河南平和滤清器有限公司 | The oily separation filter of coagulation type fuel oil used for diesel engine |
| CN207454146U (en) * | 2017-10-13 | 2018-06-05 | 李培川 | Fuel filter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212535900U (en) * | 2020-08-25 | 2021-02-12 | 上海弗列加滤清器有限公司 | Filter element assembly and fuel filter |
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