CN109236405B - Automobile adsorption type oil filter - Google Patents

Automobile adsorption type oil filter Download PDF

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Publication number
CN109236405B
CN109236405B CN201811087650.9A CN201811087650A CN109236405B CN 109236405 B CN109236405 B CN 109236405B CN 201811087650 A CN201811087650 A CN 201811087650A CN 109236405 B CN109236405 B CN 109236405B
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shell
gear
guide pipe
filter
oil
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CN109236405A (en
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倪岚霖
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GUANGDONG HAIYE INDUSTRIAL Co.,Ltd.
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Guangdong Haiye Industrial Co ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/03Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means

Abstract

The invention belongs to the technical field of automobile parts, and particularly relates to an automobile adsorption type oil filter which comprises a shell, a guide pipe, a filter element, a base, a motor, an upright post, a gear and a toothed ring, wherein an oil inlet channel is vertically arranged on the upper surface of the guide pipe along the axis direction, an oil passing hole is formed in the outer surface of the part of the guide pipe positioned in the shell, and a spiral sheet is vertically arranged in the oil inlet channel of the guide pipe; the filter element is of an annular structure and is used for filtering the engine oil flowing out of the oil passing hole; the base is positioned in the shell, and the lower end of the guide pipe is rotatably arranged on the base through a bearing; the lower end of the upright post is fixed on the base, and the upper end of the upright post is positioned in a T-shaped annular groove of the shell through a T-shaped block to realize the connection between the upright post and the shell; the gear is horizontally and fixedly arranged on the guide pipe and is positioned above the filter element; the ring gear fixed mounting is on the stand, and the gear is located the ring gear inside, gear and ring gear circumference complete meshing. The invention can realize the removal of iron scrap impurities in the engine oil and has better filtering effect.

Description

Automobile adsorption type oil filter
Technical Field
The invention belongs to the technical field of automobile parts, and particularly relates to an automobile adsorption type oil filter.
Background
Most automobile engine is for detaching the impurity in the machine oil, guarantee that the engine operates reliably and stably, increase the life of each moving spare part of engine, all add oil cleaner on the engine and filter machine oil, but the performance is not very stable when a lot of filters are used, easily block up when filterable, cause the result of use of filter not good, and the filter can only filter the great impurity of granularity, be difficult to the less wearing and tearing impurity of filtering granularity, also be difficult to get rid of the impurity of some iron fillings class simultaneously, be difficult to improve the filter effect of filter, the life of filter core has been shortened.
Patent documents: an automotive filter, application No.: 2014102776197
In the above-mentioned patent literature, adsorb iron fillings class impurity in to the machine oil through setting up the magnetic substance, realize getting rid of, simultaneously, the filter core can realize conveniently changing through fastening nut, but the filter capacity of filter core fails to improve in this scheme, and two magnetic substances are fixed motionless in the casing simultaneously to it is limited to adsorb the scope effectively, and the adsorption effect of iron fillings is not good in the machine oil.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides an automobile adsorption type oil filter. According to the invention, by arranging the multiple layers of filter screens, the middle of each filter screen is in a wave shape, and the engine oil flowing onto the filter element is more dispersed and has impact force by utilizing the spiral piece arranged in the guide pipe, so that the filter screens vibrate, the filtering capacity of the filter screens is improved, and the self-cleaning of the filter screens is realized; simultaneously, the spiral plates are arranged on the outer sides of the connecting plates and the filter element which are arranged at the two ends of the filter element, so that iron scrap impurities in the engine oil can be removed through two-stage adsorption, and the filtering effect is better.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an automobile adsorption type oil filter which comprises a shell, a guide pipe, a filter element, a base, a motor, an upright post, a gear and a toothed ring, wherein an oil discharge port is formed in the bottom of the shell, a mounting hole is formed in the top of the shell, and an annular groove with a T-shaped section is formed in the upper surface of the inner part of the shell; the guide pipe vertically penetrates through the mounting hole of the shell and extends into the shell, the guide pipe is rotationally connected with the shell, an oil inlet channel is vertically arranged on the upper surface of the guide pipe along the axis direction, an oil passing hole is formed in the outer surface of the part, located in the shell, of the guide pipe, the oil passing hole is communicated with the oil inlet channel in the guide pipe, a spiral sheet is vertically arranged in the oil inlet channel of the guide pipe, and the spiral sheet is used for dispersing engine oil in the oil inlet channel and improving the filtering effect; the filter element is of an annular structure, wraps the outer surface of the guide pipe and is used for filtering engine oil flowing out of the oil passing hole; the base is positioned in the shell, and the lower end of the guide pipe is rotatably arranged on the base through a bearing; the motor is arranged below the shell, an output shaft of the motor penetrates through the shell to be connected with the base, and the motor is used for driving the base to rotate; the upright posts are positioned in the shell, the number of the upright posts is at least two, the upright posts are symmetrically arranged about the guide pipe, the lower ends of the upright posts are fixed on the base, T-shaped blocks which are the same as the T-shaped annular groove are arranged at the upper ends of the upright posts, the upper ends of the upright posts are positioned in the T-shaped annular groove of the shell through the T-shaped blocks to realize the connection of the upright posts and the shell, and the upright posts can rotate along the T-shaped annular groove; the gear is horizontally and fixedly arranged on the guide pipe, is positioned in the shell and is positioned above the filter element; the gear ring is of an inner gear ring structure, through holes for the stand columns to penetrate through are vertically formed in the gear ring, the gear ring is fixedly installed on the stand columns through the through holes, the gear ring and the gear are located in the same horizontal plane, the gear is located inside the gear ring, and the gear is completely meshed with the gear ring in the circumferential direction. When the filter works, engine oil enters the filter through the oil inlet channel in the guide pipe, and when the engine oil moves in the oil inlet channel of the guide pipe, the spiral sheet is rotated by the impact of the engine oil, so that on one hand, the path of the engine oil in the oil inlet channel is prolonged, all the oil passing holes in the guide pipe are provided with the engine oil to flow out, the dispersibility of the engine oil is improved, and the problems of large local filtering capacity and blockage on a filter element are avoided; on the other hand, still have great kinetic energy behind the oilhole is crossed to the machine oil outflow to make the filter core vibration, be favorable to dropping of filter core surface impurity, improve filter core filter capacity, at this in-process, the motor drives the base and rotates in the positive and negative direction, the ring gear synchronous rotation, because gear and ring gear circumference complete meshing, the ring gear drives the gear synchronous rotation, makes the pipe rotate, thereby the impact force of increase machine oil improves the filter effect.
The filter core is the at least three-layer filter screen structure of coaxial setting, and the aperture of filter screen reduces gradually from inside to outside, and middle filter screen sets up to the wave, the filter screen of wave structure for increase filter area, the top and the bottom of filter core all are provided with the connecting plate, and the connecting plate is used for realizing the sealed at three-layer filter screen both ends. The multi-layer filter screen structure can filter magazine particles with different particle sizes in engine oil, the filtering effect is improved, meanwhile, due to the design of the wavy filter screen, the filter screen is better in shaking when the filtering area is increased, and the self-cleaning of the filter screen is realized.
The connecting plate is made of magnetic materials. The connecting plate of filter core tip has realized the fixed of filter screen and to stopping of machine oil on the one hand, and simultaneously, the magnetism material has played the effect to the absorption of iron fillings in the machine oil.
A spiral plate is arranged above the base; the number of the spiral plates is at least two, the lower ends of the spiral plates are fixed on the base, the upper ends of the spiral plates are fixed on the lower surface of the toothed ring, the spiral plates are positioned on the outer side of the upright post, the spiral plates are uniformly arranged on the base in the circumferential direction, and the spiral plates are in contact with the inner wall of the shell; the spiral groove is arranged on the inner wall of the shell, which is in contact with the spiral plate, and the spiral plate is in contact with the spiral groove on the inner wall of the shell. The base drives the spiral plate to move in the rotating process, and the spiral plate rotates to enable the spiral plate to move up and down along the spiral groove of the inner wall of the shell, so that the inner wall is cleaned.
The spiral plate is made of magnetic materials. The spiral plate adsorbs the machine oil after filtering for the second time because of having magnetism, holds back iron fillings, makes the machine oil of following the oil discharge outlet outflow purer.
Set up the sealing ring on the pipe, the sealing ring is located between filter core and the gear, and the sealing ring is used for realizing the sealed of gear and ring gear meshing position, avoids the iron fillings in the machine oil to pile up at the meshing position of gear and ring gear to be unfavorable for the adsorption of spiral plate to iron fillings.
The invention has the following beneficial effects:
1. according to the automobile adsorption type engine oil filter, the multiple layers of filter screens are arranged, the middle of each filter screen is in a wave shape, and engine oil flowing onto the filter element is more dispersed and has impact force by utilizing the spiral piece arranged in the guide pipe, so that the filter screens vibrate, the filtering capacity of the filter screens is improved, and the self-cleaning of the filter screens is realized; simultaneously, the spiral plates are arranged on the outer sides of the connecting plates and the filter element which are arranged at the two ends of the filter element, so that iron scrap impurities in the engine oil can be removed through two-stage adsorption, and the filtering effect is better.
2. According to the automobile adsorption type oil filter, the spiral plate can move up and down when rotating by arranging the spiral groove on the inner wall of the shell, so that the contact range of the spiral plate and engine oil is enlarged, and the adsorption effect of the spiral plate on scrap iron is better.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view of a filter cartridge of the present invention;
in the figure: the filter comprises a shell 1, a guide pipe 2, a filter element 3, a base 4, a motor 5, a stand column 6, a gear 7, a toothed ring 8, an oil discharge port 11, an oil inlet channel 21, an oil passing hole 22, a spiral sheet 23, a filter screen 31, a connecting plate 32, a spiral plate 9 and a sealing ring 10.
Detailed Description
An automobile adsorption type oil filter according to an embodiment of the present invention will be described below with reference to fig. 1 and 2.
As shown in fig. 1, the adsorption type oil filter for the automobile comprises a shell 1, a guide pipe 2, a filter element 3, a base 4, a motor 5, a stand column 6, a gear 7 and a toothed ring 8, wherein an oil discharge port 11 is arranged at the bottom of the shell 1, a mounting hole is arranged at the top of the shell 1, and an annular groove with a T-shaped section is arranged on the upper surface inside the shell 1; the guide pipe 2 vertically penetrates through a mounting hole of the shell 1 and extends into the shell 1, the guide pipe 2 is rotatably connected with the shell 1, an oil inlet channel 21 is vertically arranged on the upper surface of the guide pipe 2 along the axis direction, an oil passing hole 22 is formed in the outer surface of the part, located in the shell 1, of the guide pipe 2, the oil passing hole 22 is communicated with the oil inlet channel 21 in the guide pipe 2, a spiral piece 23 is vertically arranged in the oil inlet channel 21 of the guide pipe 2, and the spiral piece 23 is used for dispersing engine oil in the oil inlet channel 21 and improving the filtering effect; the filter element 3 is of an annular structure, the outer surface of the guide pipe 2 is wrapped by the filter element 3, and the filter element 3 is used for filtering engine oil flowing out of the oil passing hole 22; the base 4 is positioned in the shell 1, and the lower end of the guide pipe 2 is rotatably arranged on the base 4 through a bearing; the motor 5 is arranged below the shell 1, an output shaft of the motor 5 penetrates through the shell 1 to be connected with the base 4, and the motor 5 is used for driving the base 4 to rotate; the upright posts 6 are positioned in the shell 1, the number of the upright posts 6 is at least two, the upright posts 6 are symmetrically arranged relative to the guide pipe 2, the lower ends of the upright posts 6 are fixed on the base 4, T-shaped blocks which are the same as the T-shaped annular groove are arranged at the upper ends of the upright posts 6, the upper ends of the upright posts 6 are positioned in the T-shaped annular groove of the shell 1 through the T-shaped blocks to realize the connection of the upright posts 6 and the shell 1, and the upright posts 6 can rotate along the T-shaped annular groove; the gear 7 is horizontally and fixedly arranged on the guide pipe 2, the gear 7 is positioned in the shell 1, and the gear 7 is positioned above the filter element 3; the gear ring 8 is of an inner gear ring structure, a through hole for the upright post 6 to pass through is vertically formed in the gear ring 8, the gear ring 8 is fixedly installed on the upright post 6 through the through hole, the gear ring 8 and the gear 7 are located in the same horizontal plane, the gear 7 is located inside the gear ring 8, and the gear 7 and the gear ring 8 are completely meshed in the circumferential direction. When the filter works, engine oil enters the filter through the oil inlet channel 21 in the guide pipe 2, and when the engine oil moves in the oil inlet channel 21 of the guide pipe 2, the spiral sheet 23 rotates under the impact of the engine oil, so that on one hand, the path of the engine oil in the oil inlet channel 21 is prolonged, all the oil passing holes 22 in the guide pipe 2 flow out of the engine oil, the dispersibility of the engine oil is improved, and the problems of large local filtering capacity and blockage caused on the filter element 3 are avoided; on the other hand, still have great kinetic energy behind the oilhole 22 is crossed to machine oil flow to make filter core 3 vibration, be favorable to dropping of filter core 3 surface impurity, improve filter core 3 filter capacity, at this in-process, motor 5 drives 4 positive and negative rotations of base, and ring gear 8 synchronous revolution, because gear 7 and 8 circumference complete meshes of ring gear, ring gear 8 drives gear 7 synchronous revolution, makes pipe 2 rotate, thereby increases the impact force of machine oil, improves the filter effect.
As shown in fig. 2, the filter element 3 is of at least three layers of filter screens 31 which are coaxially arranged, the pore diameter of each filter screen 31 is gradually reduced from inside to outside, the middle filter screen 31 is of a wave shape, the filter screens 31 of the wave shape structure are used for increasing the filtering area, the top and the bottom of the filter element 3 are both provided with connecting plates 32, and the connecting plates 32 are used for realizing the sealing of the two ends of each three layer of filter screens 31. The multi-layer filter screen 31 structure can filter magazine particles with different particle sizes in engine oil, the filtering effect is improved, meanwhile, due to the design of the wave-shaped filter screen 31, the filter screen 31 can shake better when the filtering area is increased, and the self-cleaning of the filter screen 31 is realized.
As shown in fig. 2, the connection plate 32 is made of a magnetic material. The connecting plate 32 of 3 tip on the one hand of filter core has realized the fixed of filter screen 31 and to stopping of machine oil, and simultaneously, the magnetism material has played the effect to the absorption of iron fillings in the machine oil.
As shown in fig. 1, a spiral plate 9 is arranged above the base 4; the number of the spiral plates 9 is at least two, the lower ends of the spiral plates 9 are fixed on the base 4, the upper ends of the spiral plates 9 are fixed on the lower surface of the toothed ring 8, the spiral plates 9 are positioned on the outer side of the upright post 6, the spiral plates 9 are uniformly arranged on the base 4 in the circumferential direction, and the spiral plates 9 are in contact with the inner wall of the shell 1; the inner wall of the shell 1 contacted with the spiral plate 9 is provided with a spiral groove, and the spiral plate 9 is contacted with the spiral groove on the inner wall of the shell 1. The base 4 drives the spiral plate 9 to move in the rotating process, and the spiral plate 9 rotates to enable the spiral plate 9 to move up and down along the spiral groove in the inner wall of the shell 1, so that the inner wall is cleaned.
As shown in fig. 1, the spiral plate 9 is made of a magnetic material. Spiral plate 9 adsorbs the machine oil after filtering for the second time because of having magnetism, holds back iron fillings, makes the machine oil that flows from oil discharge port 11 purer.
As shown in figure 1, set up sealing ring 10 on pipe 2, sealing ring 10 is located between filter core 3 and the gear 7, and sealing ring 10 is used for realizing the sealed of gear 7 and ring gear 8 meshing position, avoids the iron fillings in the machine oil to pile up at the meshing position of gear 7 and ring gear 8 to be unfavorable for spiral plate 9 to the absorption of iron fillings.
The specific process is as follows:
when the filter works, engine oil enters the filter through the oil inlet channel 21 in the guide pipe 2, and when the engine oil moves in the oil inlet channel 21 of the guide pipe 2, the spiral sheet 23 rotates under the impact of the engine oil, so that on one hand, the path of the engine oil in the oil inlet channel 21 is prolonged, all the oil passing holes 22 in the guide pipe 2 flow out of the engine oil, the dispersibility of the engine oil is improved, and the problems of large local filtering capacity and blockage caused on the filter element 3 are avoided; on the other hand, still have great kinetic energy behind the oilhole 22 is crossed to machine oil flow to make filter core 3 vibration, be favorable to dropping of filter core 3 surface impurity, improve filter core 3 filter capacity, at this in-process, motor 5 drives 4 positive and negative rotations of base, and ring gear 8 synchronous revolution, because gear 7 and 8 circumference complete meshes of ring gear, ring gear 8 drives gear 7 synchronous revolution, makes pipe 2 rotate, thereby increases the impact force of machine oil, improves the filter effect. The multi-layer filter screen 31 structure can filter magazine particles with different particle sizes in engine oil, the filtering effect is improved, meanwhile, due to the design of the wave-shaped filter screen 31, the filter screen 31 can shake better when the filtering area is increased, and the self-cleaning of the filter screen 31 is realized.
The connecting plate 32 of 3 tip on the one hand of filter core has realized the fixed of filter screen 31 and to stopping of machine oil, and simultaneously, the magnetism material has played the effect to the absorption of iron fillings in the machine oil. Base 4 drives the spiral plate 9 motion at the rotation in-process, and the rotation of spiral plate 9 makes spiral plate 9 along the helicla flute up-and-down motion of 1 inner wall of casing to play the clearance to the inner wall, simultaneously, spiral plate 9 adsorbs the second time because of having magnetism to the machine oil after filtering, holds back iron fillings, makes the machine oil that flows from oil discharge port 11 purer. The design of sealing ring 10 avoids iron fillings in the machine oil to pile up at the meshing position of gear 7 and ring gear 8 to be unfavorable for the adsorption of spiral plate 9 to iron fillings.
While one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.
Industrial applicability
According to the invention, by arranging the multiple layers of filter screens, the middle of each filter screen is in a wave shape, and the engine oil flowing onto the filter element is more dispersed and has impact force by utilizing the spiral sheets arranged in the guide pipe, so that the filter screens vibrate, the filtering capacity of the filter screens is improved, and the self-cleaning of the filter screens is realized; simultaneously through setting up the connecting plate at filter core both ends and the filter core outside and set up the spiral plate, adsorb the realization through the two-stage and get rid of iron fillings impurity in the machine oil, the filter effect is better to this car absorption formula oil cleaner is useful in the auto-parts field.

Claims (5)

1. The utility model provides an automobile adsorption type oil filter which characterized in that: the oil filter comprises a shell (1), a guide pipe (2), a filter element (3), a base (4), a motor (5), an upright post (6), a gear (7) and a toothed ring (8), wherein an oil discharge port (11) is formed in the bottom of the shell (1), a mounting hole is formed in the top of the shell (1), and an annular groove with a T-shaped section is formed in the upper surface inside the shell (1); the guide pipe (2) vertically penetrates through a mounting hole of the shell (1) and extends into the shell (1), the guide pipe (2) is rotatably connected with the shell (1), an oil inlet channel (21) is vertically arranged on the upper surface of the guide pipe (2) along the axis direction, an oil passing hole (22) is formed in the outer surface of the part, located in the shell (1), of the guide pipe (2), the oil passing hole (22) is communicated with the oil inlet channel (21) in the guide pipe (2), a spiral sheet (23) is vertically arranged in the oil inlet channel (21) of the guide pipe (2), and the spiral sheet (23) is used for dispersing engine oil in the oil inlet channel (21) and improving the filtering effect; the filter element (3) is of an annular structure, the outer surface of the guide pipe (2) is wrapped by the filter element (3), and the filter element (3) is used for filtering engine oil flowing out of the oil passing hole (22); the base (4) is positioned in the shell (1), and the lower end of the guide pipe (2) is rotatably arranged on the base (4) through a bearing; the motor (5) is arranged below the shell (1), an output shaft of the motor (5) penetrates through the shell (1) to be connected with the base (4), and the motor (5) is used for driving the base (4) to rotate; the upright post (6) is positioned in the shell (1), the number of the upright posts (6) is at least two, the upright posts (6) are symmetrically arranged relative to the guide pipe (2), the lower end of the upright post (6) is fixed on the base (4), a T-shaped block which is the same as the T-shaped annular groove is arranged at the upper end of the upright post (6), the upper end of the upright post (6) is positioned in the T-shaped annular groove of the shell (1) through the T-shaped block to realize the connection of the upright post (6) and the shell (1), and the upright post (6) can rotate along the T-shaped annular groove; the gear (7) is horizontally and fixedly arranged on the guide pipe (2), the gear (7) is positioned in the shell (1), and the gear (7) is positioned above the filter element (3); the gear ring (8) is of an inner gear ring structure, a through hole for the upright post (6) to penetrate through is vertically formed in the gear ring (8), the gear ring (8) is fixedly installed on the upright post (6) through the through hole, the gear ring (8) and the gear (7) are located in the same horizontal plane, the gear (7) is located inside the gear ring (8), and the gear (7) and the gear ring (8) are completely meshed in the circumferential direction;
a spiral plate (9) is arranged above the base (4); the number of the spiral plates (9) is at least two, the lower ends of the spiral plates (9) are fixed on the base (4), the upper ends of the spiral plates (9) are fixed on the lower surface of the toothed ring (8), the spiral plates (9) are positioned on the outer side of the upright post (6), the spiral plates (9) are uniformly arranged on the base (4) in the circumferential direction, and the spiral plates (9) are in contact with the inner wall of the shell (1); the inner wall of the shell (1) in contact with the spiral plate (9) is provided with a spiral groove, and the spiral plate (9) is in contact with the spiral groove on the inner wall of the shell (1).
2. The automobile adsorption engine oil filter of claim 1, wherein: the filter core (3) is the at least three-layer filter screen (31) structure of coaxial setting, and the aperture of filter screen (31) reduces gradually from inside to outside, and middle filter screen (31) sets up to the wave, filter screen (31) of wave structure for increase filter area, the top and the bottom of filter core (3) all are provided with connecting plate (32), and connecting plate (32) are used for realizing the sealed at three-layer filter screen (31) both ends.
3. The automobile adsorption engine oil filter of claim 2, wherein: the connecting plate (32) is made of magnetic materials.
4. The automobile adsorption engine oil filter of claim 1, wherein: the spiral plate (9) is made of magnetic materials.
5. The automobile adsorption engine oil filter of claim 1, wherein: the sealing device is characterized in that a sealing ring (10) is arranged on the guide pipe (2), the sealing ring (10) is located between the filter element (3) and the gear (7), and the sealing ring (10) is used for sealing the meshing part of the gear (7) and the gear ring (8).
CN201811087650.9A 2018-09-18 2018-09-18 Automobile adsorption type oil filter Active CN109236405B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201811087650.9A CN109236405B (en) 2018-09-18 2018-09-18 Automobile adsorption type oil filter

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CN109236405B true CN109236405B (en) 2020-09-04

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CN113757085B (en) * 2021-09-24 2023-03-21 浙江山海机械有限公司 Recycling engine oil filter and air compressor

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JP4058926B2 (en) * 2001-09-14 2008-03-12 スズキ株式会社 Outboard motor lubrication system
DE102009024699A1 (en) * 2009-06-12 2010-12-16 Mahle International Gmbh Filter device e.g. oil filter device, for internal combustion engine of motor vehicle, has filter element rotatable by connection device, held by housing part in axial direction and adjustably connected with filter bowl in axial direction
CN104074650B (en) * 2014-06-20 2017-02-08 泉州市洛江双阳高捷机动车零部件电脑设计工作室 Automotive filter
CN107413270B (en) * 2017-08-14 2020-08-04 温州海蓝工业设计有限公司 Efficient lubricating oil production mediation equipment
CN207401255U (en) * 2017-10-14 2018-05-25 山东鑫海能润滑油有限公司 A kind of diesel engine oil Multistage filtering device
CN107626133A (en) * 2017-11-10 2018-01-26 河南道骐汽车科技有限公司 A kind of lubricating oil processing filter

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Effective date of registration: 20200810

Address after: Luo Cun, Nanhai District Shishan road sand bunker 528226 Guangdong city of Foshan province No. 38

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