CN116392878B - Long-life oil filter - Google Patents
Long-life oil filter Download PDFInfo
- Publication number
- CN116392878B CN116392878B CN202310675193.XA CN202310675193A CN116392878B CN 116392878 B CN116392878 B CN 116392878B CN 202310675193 A CN202310675193 A CN 202310675193A CN 116392878 B CN116392878 B CN 116392878B
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- Prior art keywords
- end cover
- filter layer
- oil
- baffles
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000012530 fluid Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 2
- 230000035699 permeability Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 21
- 239000012535 impurity Substances 0.000 abstract description 18
- 238000012423 maintenance Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000007787 solid Substances 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- B01D29/50—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
- B01D29/58—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 arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a long-life oil filter, which comprises a shell and a filter element, wherein the shell is composed of an upper shell and a lower shell, the upper end of the lower shell is fixedly connected with the lower end of the upper shell, the filter element is arranged in the shell, the filter element comprises an upper end cover, a lower end cover, an inner end cover, an outer filter layer and an inner filter layer, the outer filter layer is fixed between the upper end cover and the lower end cover in a pasting mode, guide vanes are arranged on the outer side surface of the upper end cover along the circumferential direction, the inner filter layer is arranged on the inner side of the outer filter layer, a gap for oil circulation is arranged between the inner filter layer and the outer filter layer, a permanent magnet is arranged between the inner filter layer and the outer filter layer, the permanent magnet is fixed on the lower end cover, and a supporting outer ring is arranged on the outer side surface of the lower end cover; under the condition of ensuring the filtering precision, the oil filter has the minimum installation size and weight, reduces the maintenance cost of a hydraulic system, has the best filtering effect on the oil system, and particularly has longer service life compared with the common oil filter on oil with more metal impurities.
Description
Technical Field
The invention relates to the technical field of oil filters, in particular to a long-service-life oil filter.
Background
At present, the common oil filter of domestic and foreign oil systems is a T-shaped oil filter, the T-shaped oil filter has relatively large size, and certain influence is brought to installation, the oil filter can intercept solid particles in oil on the surface of a filter screen, in corrugation and deposited at the bottom of the oil filter, the service life of the oil filter is short, impurities deposited at the bottom of the oil filter are easy to mix in the oil when the system is restarted each time, the pressure of the system is suddenly increased, the service life of the oil filter is further influenced, periodic maintenance is needed, and the oil filter is suitable for a position with convenient maintenance.
Many positions in the aviation oil system are difficult to maintain and cannot be maintained at any time, the maintenance along with the whole system is necessary, and if the maintenance is not timely, the oil supply system is easy to fail; the oil system continuously provides fuel for aviation equipment, so that the aviation equipment can be stopped for maintenance during maintenance, and a short-service-life oil filter cannot meet long-time flight tasks of an aviation aircraft. For this reason, long life oil filters are required to reduce maintenance cycles of the oil system. The existing oil filter has the defects that the filter element pair can only perform single filtration, and only the filter layer pleats are used for accommodating greasy dirt, so that the service life is short, and when an oil system of an oil system is started and stopped, solid pollutants are easy to flow back to the filter element outer filter layer, so that secondary pollution is caused; chinese application number 201220497922.4 discloses an oil filter, and the impurity in the oil deposits the bottom of oil filter main part, plays the filter action, and the impurity can not deposit the filter core bottom, increases the life-span of filter core, and this structure is ordinary oil filter structure, only relies on the effect of gravity, and the impurity is difficult to deposit in the bottom, and partial impurity can adsorb in the filter core skin in the filtration, is difficult to guarantee filtration efficiency, and the fluid system opens and stops the solid pollutant reflux that makes the bottom to the outer filtering layer department of filter core, causes secondary pollution, has proposed a long-life oil filter to above-mentioned problem.
Disclosure of Invention
The invention aims to overcome the existing defects, and provides the long-life oil filter, which adopts graded filtration, ensures that the oil filter has minimum installation size and weight under the condition of ensuring the filtration precision, prolongs the service life of the oil filter, reduces the maintenance cost of a hydraulic system, has the best filtration effect on an oil system, particularly on oil with more metal impurities, has longer service life than a common oil filter, effectively avoids secondary pollution caused by the fact that solid pollutants flow back to an outer filter layer of a filter element due to the start and stop of the oil system, and can effectively solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a long-life oil filter, including casing and filter core, the casing is by last casing, lower casing, the upper end of lower casing and the lower extreme fixed connection of last casing, the filter core sets up inside the casing, the filter core includes the upper end cover, the lower extreme cover, the inner end cover, outer filtering layer and inner filtering layer, the outer filtering layer is fixed between upper end cover and lower extreme cover through the mode of pasting, the upper end cover lateral surface is provided with guide vane along the circumferencial direction, the inner filtering layer sets up in outer filtering layer inboard, be provided with the clearance that is used for the fluid circulation between inner filtering layer and the outer filtering layer, be provided with the permanent magnet between inner filtering layer and the outer filtering layer, the permanent magnet is fixed on the lower extreme cover, the lateral surface of lower extreme cover is provided with the support outer loop, the support outer loop is provided with evenly distributed's fan-shaped breach along the circumferencial direction, the lower surface of lower extreme cover is provided with the maze and holds dirty structure.
Further, a through hole is formed in the center of the lower end of the lower shell, the through hole is concentric with the filter element, and an oil drain bolt is arranged in the through hole.
Further, the left end of going up the casing is equipped with the fluid export, and the right-hand member of going up the casing is equipped with the fluid import, and the center of going up the casing is provided with cavity bellying, and the fluid export link up with cavity bellying, and the upper end cover overlaps on cavity bellying, and upper end cover and cavity bellying junction are provided with sealing washer II.
Further, the upper shell is in threaded connection with the lower end of the lower shell, and a sealing ring I for sealing is arranged at the threaded connection position.
Further, the corrugation of the outer filter layer is in a spiral shape along the axis, and the spiral shape is the same as the spiral direction of the oil.
Further, the labyrinth dirt holding structure comprises a first baffle, a second baffle, a third baffle and a fourth baffle, wherein the first baffle, the second baffle, the third baffle and the fourth baffle are sequentially arranged outwards, the quantity of the baffles is the same, the baffles are uniformly distributed along the center of the lower end cover and are in contact with the inner bottom surface of the lower shell to form a labyrinth dirt holding cavity, gaps between the second baffles and gaps between the first baffles are distributed in a staggered manner, gaps between the third baffles and gaps between the second baffles are distributed in a staggered manner, and gaps between the fourth baffles and the gaps between the third baffles are distributed in a staggered manner.
Further, the cross sections of the first baffle and the second baffle are all arranged to be arc-shaped structures, the cross sections of the third baffle and the fourth baffle are all arranged to be I-shaped structures, the inner side surface of the fourth baffle and the outer side surface of the third baffle are arranged on the same circumference, and a gap is reserved between the inner side surface of the fourth baffle and the outer side surface of the third baffle, so that an S-shaped circulation channel is formed.
Further, the lower end of the inner filter layer is stuck on the lower end cover, the lower end cover is made of magnetic permeability materials, the upper end of the inner filter layer is provided with an inner end cover, and the inner end cover is positioned below the upper end cover.
Compared with the prior art, the invention has the beneficial effects that:
the structure is to adopt hierarchical filtration, under the condition of guaranteeing filtering accuracy, make the oil filter possess minimum installation size and weight, simultaneously extension oil filter life, reduce hydraulic system's maintenance cost, this oil filter is best to fluid system filter effect, especially to the more fluid of metallic impurity, longer life than ordinary oil filter has, simultaneously effectually avoid making solid pollutant backward flow to filter core outer filter layer department because of the fluid system starts and stops, cause secondary pollution, when the system maintenance, twist out the oil drain bolt, can maintain the system after getting rid of contaminated fluid in the oil filter, the pollutant in the oil filter can be discharged along with fluid, can not introduce the pollution source for the accurate component of low reaches, whole maintenance process easy operation.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a filter element according to the present invention;
FIG. 3 is a schematic illustration of the internal oil flow of the present invention;
FIG. 4 is a schematic illustration of the oil flow outside the cartridge of the present invention;
FIG. 5 is a schematic view of the structure of the lower end cap A;
FIG. 6 is a schematic diagram of the flow direction of oil in the lower end cap of the present invention.
In the figure: the oil filter comprises an upper shell, a sealing ring I, a lower shell, a filter element 4, an oil drain bolt 5, a sealing ring II, an upper end cover 7, an outer filter layer 8, an inner end cover 9, an inner filter layer 10, a permanent magnet 11, a lower end cover 12, a guide vane 13, a supporting outer ring 14, a first baffle 15, a second baffle 16, a third baffle 17, a fourth baffle 18, an oil inlet 19, a hollow bulge 20 and an oil outlet 21.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described 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.
Referring to fig. 1-6, the present invention provides a technical solution: the long-life oil filter comprises a shell and a filter element 4, wherein the shell consists of an upper shell 1 and a lower shell 3, the upper end of the lower shell 3 is fixedly connected with the lower end of the upper shell 1, the upper shell 1 is in threaded connection with the lower end of the lower shell 3, the thread connection is provided with a sealing ring I2 for sealing, the sealing performance between the upper shell 1 and the lower shell 3 is ensured through the sealing ring I2, oil leakage is prevented, the left end of the upper shell 1 is provided with an oil outlet 21, the right end of the upper shell 1 is provided with an oil inlet 19, the center of the upper shell 1 is provided with a hollow bulge 20, the oil outlet 21 is communicated with the hollow bulge 20, the upper end cover 7 is sleeved on the hollow bulge 20, and the joint of the upper end cover 7 and the hollow bulge 20 is provided with a sealing ring II 6, the filter element 4 is arranged in the shell, the filter element 4 comprises an upper end cover 7, a lower end cover 12, an inner end cover 9, an outer filter layer 8 and an inner filter layer 10, the outer filter layer 8 is fixed between the upper end cover 7 and the lower end cover 12 in a pasting mode, the outer side surface of the upper end cover 7 is provided with a guide vane 13 along the circumferential direction, the guide vane 13 can change the flow direction of oil, the oil is led to spiral downwards, under the action of centrifugal force, the inner cavity side surface of the lower shell 3 and the lower surface move gradually, cleaner oil flows out through the oil outlet 21 of the upper shell 1 after being filtered by the outer filter layer 8, the inner filter layer 10 is arranged on the inner side of the outer filter layer 8, a gap for oil circulation is arranged between the inner filter layer 10 and the outer filter layer 8, a permanent magnet 11 is arranged between the inner filter layer 10 and the outer filter layer 8, the permanent magnet 11 is fixed on the lower end cover 12, the outer side surface of the lower end cover 12 is provided with a supporting outer ring 14, the supporting outer ring 14 is provided with evenly distributed sector gaps along the circumferential direction, and the lower surface of the lower end cover 12 is provided with a labyrinth dirt containing structure.
The lower end center of the lower shell 3 is provided with a through hole, the through hole is concentric with the filter element 4, the through hole is provided with an oil drain bolt 5, when the system is maintained, the oil drain bolt 5 is screwed off, the system can be maintained after contaminated oil in the oil filter is discharged, pollutants in the oil filter can be discharged along with the oil, a pollution source can not be introduced for downstream precise elements, and the whole maintenance process is simple to operate.
The corrugation of the outer filter layer 8 is in a spiral shape along the axis, the spiral shape is the same as the spiral direction of oil, the spiral shape of the outer filter layer 8 can reduce the flow resistance of the oil flowing through the outer filter layer, and meanwhile, compared with the common vertical corrugation, the corrugated outer filter layer has a larger filtering area, and solid impurities in the oil are gradually deposited on the lower end cover 12 under the centrifugal force, the gravity and the scouring force of the oil.
The labyrinth dirt holding structure comprises a first baffle 15, a second baffle 16, a third baffle 17 and a fourth baffle 18, wherein the first baffle 15, the second baffle 16, the third baffle 17 and the fourth baffle 18 are sequentially arranged outwards, the number of the baffles is the same, the baffles are uniformly distributed along the center of the lower end cover 12, the baffles are in contact with the inner bottom surface of the lower shell 3 to form a labyrinth dirt holding cavity, gaps between the second baffles 16 and the first baffle 15 are distributed in a staggered manner, gaps between the third baffle 17 and the gaps between the second baffle 16 are distributed in a staggered manner, and gaps between the fourth baffle 18 and the gaps between the third baffle 17 are distributed in a staggered manner.
The cross sections of the first baffle 15 and the second baffle 16 are all set to arc structures, the cross sections of the third baffle 17 and the fourth baffle 18 are all set to I-shaped structures, the inner side surface of the fourth baffle 18 and the outer side surface of the third baffle 17 are on the same circumference, a gap is reserved between the inner side surface of the fourth baffle 18 and the outer side surface of the third baffle 17, an S-shaped circulating channel is formed, the S-shaped circulating channel effectively avoids oil backflow, meanwhile, the capacity of the oil is increased, as shown in fig. 6, the oil enters into a labyrinth dirt containing structure through a sector notch on the supporting outer ring 14, firstly enters into the S-shaped circulating channel through the fourth baffle 18, then flows into the space between the second baffle 16 and the third baffle 17 through the gap between the third baffle 17, then flows upwards into the inner side of the inner filter layer 10 through the center of the lower end cover 12 after passing through the gap between the second baffle 16 and the gap between the first baffle 15, iron filings and other magnetic impurities in the oil are adsorbed in the labyrinth dirt containing cavity, the clean oil flows out through the oil outlet 21 after being filtered through the labyrinth dirt containing cavity 10, and after the system is shut down and restarted, the solid impurities are deposited under the labyrinth dirt containing cavity is prevented from being washed out, the solid impurities are prevented from being washed out from the outer layer 8, and the secondary pollution is avoided.
The lower extreme of inner filter layer 10 is pasted on lower end cover 12, and lower end cover 12 adopts magnetic conductivity material to make, and under the magnetization of permanent magnet 11, lower end cover 12 has magnetism, can adsorb the magnetic conductivity impurity such as iron fillings in the fluid in the maze dirt holding intracavity, and the upper end of inner filter layer 10 is provided with inner end cover 9, and inner end cover 9 is located the below of upper end cover 7, and upper end cover 7 seals the upper end of inner filter layer 10.
When in use: the oil enters the oil filter from the oil inlet 19, the guide vane 13 structure of the upper end cover 7 enables the oil to rotate along the outer side of the outer filter layer 8, solid impurities in the oil move along with the oil in a circular motion, the solid impurities gradually move to the side surface and the lower side of the inner cavity of the lower shell 3 under the action of centrifugal force, cleaner oil flows out through the oil outlet 21 of the upper shell 1 after being filtered by the outer filter layer 8, spiral waves of the outer filter layer 8 are the same as the spiral direction of the oil, and the flow resistance of the oil flowing through the outer filter layer can be reduced; solid impurities in the oil are gradually deposited on the lower end cover 12 under centrifugal force, gravity and scouring force of the oil, fan-shaped gaps are formed along the circumference, so that the solid impurities flow into the inner filter layer 10 along a channel formed by the labyrinth dirt-containing structure through the fan-shaped gaps, the lower end cover 12 has magnetism under the magnetization of the permanent magnet 11, and can absorb magnetic conductive impurities such as iron filings in the oil in the labyrinth channel, and relatively clean oil flows out through the oil outlet 21 after being filtered by the inner filter layer 10.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a long-life oil filter, includes casing and filter core (4), and the casing is by last casing (1), lower casing (3), the upper end of lower casing (3) and the lower extreme fixed connection of last casing (1), and filter core (4) set up inside the casing, its characterized in that: the filter element (4) comprises an upper end cover (7), a lower end cover (12), an inner end cover (9), an outer filter layer (8) and an inner filter layer (10), wherein the outer filter layer (8) is fixed between the upper end cover (7) and the lower end cover (12) in a pasting mode, guide vanes (13) are arranged on the outer side surface of the upper end cover (7) along the circumferential direction, the inner filter layer (10) is arranged on the inner side of the outer filter layer (8), a gap for oil circulation is arranged between the inner filter layer (10) and the outer filter layer (8), a permanent magnet (11) is arranged between the inner filter layer (10) and the outer filter layer (8), the permanent magnet (11) is fixed on the lower end cover (12), a supporting outer ring (14) is arranged on the outer side surface of the lower end cover (12), fan-shaped notches which are uniformly distributed along the circumferential direction are formed in the lower end cover (12), a labyrinth dirt containing structure is arranged on the lower surface of the lower end cover (12), the labyrinth dirt containing structure comprises a first baffle (15), a second baffle (16), a third baffle (17) and a fourth baffle (18), a gap for oil circulation is formed between the inner filter layer (10) and the outer filter layer (8), a permanent magnet (11) is arranged between the inner filter layer (10) and the outer filter layer (8), the permanent magnet (11) is fixed on the lower end cover, the inner filter layer is uniformly distributed on the lower end cover, the inner filter layer is uniformly distributed on the inner filter layer, and the inner filter layer is uniformly distributed on the lower end cover, and the inner filter layer. Gaps between the second baffles (16) and gaps between the first baffles (15) are distributed in a staggered mode, gaps between the third baffles (17) and gaps between the second baffles (16) are distributed in a staggered mode, gaps between the fourth baffles (18) and gaps between the third baffles (17) are distributed in a staggered mode, the sections of the first baffles (15) and the second baffles (16) are all of arc-shaped structures, the sections of the third baffles (17) and the fourth baffles (18) are of I-shaped structures, the inner side face of the fourth baffles (18) and the outer side face of the third baffles (17) are on the same circumference, and gaps are formed between the inner side face of the fourth baffles (18) and the outer side face of the third baffles (17) to form S-shaped flow channels.
2. A long life oil filter according to claim 1, wherein: the center of the lower end of the lower shell (3) is provided with a through hole which is concentric with the filter element (4), and an oil drain bolt (5) is arranged in the through hole.
3. A long life oil filter according to claim 1, wherein: the left end of last casing (1) is equipped with fluid export (21), and the right-hand member of last casing (1) is equipped with fluid import (19), and the center of going up casing (1) is provided with cavity bellying (20), and fluid export (21) link up with cavity bellying (20), and upper end cover (7) cover is on cavity bellying (20), and upper end cover (7) are provided with sealing washer II (6) with cavity bellying (20) junction.
4. A long life oil filter according to claim 1, wherein: the upper shell (1) is in threaded connection with the lower end of the lower shell (3), and a sealing ring I (2) for sealing is arranged at the threaded connection position.
5. A long life oil filter according to claim 1, wherein: the corrugation of the outer filter layer (8) is in a spiral shape along the axis, and the spiral shape is the same as the spiral direction of oil.
6. A long life oil filter according to claim 1, wherein: the lower end of the inner filter layer (10) is stuck to the lower end cover (12), the lower end cover (12) is made of magnetic permeability materials, the inner end cover (9) is arranged at the upper end of the inner filter layer (10), and the inner end cover (9) is positioned below the upper end cover (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310675193.XA CN116392878B (en) | 2023-06-08 | 2023-06-08 | Long-life oil filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310675193.XA CN116392878B (en) | 2023-06-08 | 2023-06-08 | Long-life oil filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116392878A CN116392878A (en) | 2023-07-07 |
| CN116392878B true CN116392878B (en) | 2023-09-12 |
Family
ID=87014638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310675193.XA Active CN116392878B (en) | 2023-06-08 | 2023-06-08 | Long-life oil filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116392878B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2344569Y (en) * | 1998-11-20 | 1999-10-20 | 张来鉴 | Filter |
| CN105089888A (en) * | 2014-05-16 | 2015-11-25 | 江苏罡阳转向系统有限公司 | Novel diesel oil filter |
| CN106194530A (en) * | 2016-10-09 | 2016-12-07 | 安徽科技学院 | A kind of novel fluid cleaner |
| CN109166268A (en) * | 2018-10-19 | 2019-01-08 | 浙江巨感物联网科技有限公司 | It is a kind of for smoke detector into cigarette labyrinth and smoke detector |
| CN209828413U (en) * | 2019-01-21 | 2019-12-24 | 新乡市华航航空液压设备有限公司 | Filter element with improved filtering area structure |
| CN212225960U (en) * | 2020-05-29 | 2020-12-25 | 金华市信远汽车配件有限公司 | Gearbox filter screen with annular guide plate |
| JP2021084048A (en) * | 2019-11-25 | 2021-06-03 | 株式会社豊田自動織機 | Metal particle removal member and oil filter unit |
| CN214106114U (en) * | 2020-07-28 | 2021-09-03 | 中油智科(吉林)技术装备有限公司 | Labyrinth spiral sand setting antiscale sieve tube |
-
2023
- 2023-06-08 CN CN202310675193.XA patent/CN116392878B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2344569Y (en) * | 1998-11-20 | 1999-10-20 | 张来鉴 | Filter |
| CN105089888A (en) * | 2014-05-16 | 2015-11-25 | 江苏罡阳转向系统有限公司 | Novel diesel oil filter |
| CN106194530A (en) * | 2016-10-09 | 2016-12-07 | 安徽科技学院 | A kind of novel fluid cleaner |
| CN109166268A (en) * | 2018-10-19 | 2019-01-08 | 浙江巨感物联网科技有限公司 | It is a kind of for smoke detector into cigarette labyrinth and smoke detector |
| CN209828413U (en) * | 2019-01-21 | 2019-12-24 | 新乡市华航航空液压设备有限公司 | Filter element with improved filtering area structure |
| JP2021084048A (en) * | 2019-11-25 | 2021-06-03 | 株式会社豊田自動織機 | Metal particle removal member and oil filter unit |
| CN212225960U (en) * | 2020-05-29 | 2020-12-25 | 金华市信远汽车配件有限公司 | Gearbox filter screen with annular guide plate |
| CN214106114U (en) * | 2020-07-28 | 2021-09-03 | 中油智科(吉林)技术装备有限公司 | Labyrinth spiral sand setting antiscale sieve tube |
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| Publication number | Publication date |
|---|---|
| CN116392878A (en) | 2023-07-07 |
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