CN109026273B

CN109026273B - Method for improving engine oil filtering efficiency

Info

Publication number: CN109026273B
Application number: CN201811121481.6A
Authority: CN
Inventors: 房玉山
Original assignee: Taizhou Jinhong Rubber & Plastic Co Ltd
Current assignee: Taizhou Jinhong Rubber & Plastic Co., Ltd
Priority date: 2018-09-26
Filing date: 2018-09-26
Publication date: 2020-08-04
Anticipated expiration: 2038-09-26
Also published as: CN109026273A

Abstract

The invention belongs to the technical field of automobile engine oil filtration, and particularly relates to a method for improving engine oil filtration efficiency, wherein a filtering device used in the method comprises a shell, an end cover, a first partition plate, a second partition plate and a third partition plate, wherein the end cover and the first partition plate form an oil inlet cavity, and a first filtering cavity, a second filtering cavity and a third filtering cavity are sequentially arranged in the shell from top to bottom; filter plates are symmetrically arranged in the first filter cavity; the outer sides of the filter plates are provided with stirring modules which are used for stirring engine oil; the filtering device used in the invention can improve the filtering effect of the engine oil by leading the engine oil into the oil inlet cavity and filtering the engine oil layer by layer through the first filtering cavity, the second filtering cavity and the third filtering cavity; meanwhile, the stirring module is arranged and used for stirring the engine oil falling into the first through hole, so that the engine oil can be accelerated to pass through the first filter screen, and the filtering efficiency of the engine oil is improved; and through installing first one-way filter screen and the one-way filter screen of second, avoid the machine oil backward flow.

Description

Method for improving engine oil filtering efficiency

Technical Field

The invention belongs to the technical field of automobile engine oil filtration, and particularly relates to a method for improving engine oil filtration efficiency.

Background

In the working process of the engine, metal abrasive dust, carbon deposit oxidized at high temperature, colloidal precipitate, water and the like are continuously mixed into the lubricating oil. The function of the oil filter is to filter out these mechanical impurities and colloids, keep the lubricating oil clean and prolong the service life of the lubricating oil. The oil filter should have the performance of strong filtering capacity, small flow resistance, long service life and the like. At present, all impurities in engine oil cannot be filtered in the conventional oil filter during filtering, and the engine oil filtering efficiency is low.

Some automobile oil filtering devices also appear in the prior art, for example, a chinese patent with application number 2016100571384 discloses an automobile oil filter, which comprises a housing, an end cover, a first partition plate, a first filter element, a second partition plate, an elastic sheet, a first one-way membrane, a second one-way membrane, a first magnetostrictive film, and a first coil; an oil outlet is arranged on the shell; the end cover is detachably arranged on the shell, and an oil inlet is formed in the end cover; the first partition board is arranged in the shell and connected with the inner peripheral surface of the shell, the first partition board divides the inner space of the shell into a first accommodating cavity and a second accommodating cavity, and a first through hole is formed in the first partition board; the first filter element is annular, is arranged in the first accommodating cavity, is connected with the inner peripheral surface of the shell at the first end and is connected with the first partition plate at the second end, is divided into a first filter cavity and a second filter cavity by the first accommodating cavity, is communicated with the oil inlet, and is communicated with the first through hole.

This technical scheme, it is rational in infrastructure, can avoid the backward flow phenomenon of machine oil filtration in-process. But the filtering effect in the technical scheme is not good; meanwhile, the filtering efficiency of the engine oil cannot be improved, so that the technical scheme is limited.

Disclosure of Invention

In order to make up for the defects of the prior art, the invention provides a method for improving the filtering efficiency of engine oil, and the method mainly aims to improve the filtering efficiency of the engine oil. The filtering device used in the method improves the filtering effect of the engine oil by leading the engine oil into the oil inlet cavity and filtering the engine oil layer by layer through the first filtering cavity, the second filtering cavity and the third filtering cavity; meanwhile, the stirring module is arranged and used for stirring the engine oil falling into the first through hole, so that the engine oil can be accelerated to pass through the first filter screen, and the filtering efficiency of the engine oil is improved; and through the one-way filter screen of installation first one-way filter screen and the one-way filter screen of second, avoid the machine oil backward flow.

The technical scheme adopted by the invention for solving the technical problems is as follows: a method for improving the filtration efficiency of engine oil comprises the following steps:

s1: installing a cooler above the filtering device, wherein an oil outlet of the cooler is communicated with an oil inlet of the filtering device through a pipeline;

s2: pumping engine oil into a cooler in S1 through an engine oil pump for cooling, wherein a cooling pipeline is arranged in the cooler, cooling water is introduced into the cooling pipeline, and the shell of the cooler is made of aluminum alloy;

s3: introducing the cooled engine oil in the step S2 into a filtering device through a pipeline for filtering, and removing impurities in the engine oil;

s4, mounting a magnet at the L-shaped concave part of the second clapboard of the filtering device in the S3, wherein the magnet is used for adsorbing scrap iron contained in the engine oil;

s5: after the cooling water of the cooler in the S2 cools the engine oil, the temperature of the cooling water rises to become hot water, and the hot water is introduced into the filter device through a pipeline to wash the oil stain in the filter device;

the filter device comprises a shell, an end cover, a first baffle plate, a second baffle plate, a third baffle plate, an oil inlet and an oil outlet, wherein the end cover is detachably arranged above the shell through the first baffle plate, the end cover and the first baffle plate form an oil inlet cavity, the top of the end cover is provided with an oil inlet, the right side of the bottom of the shell is provided with the oil outlet, the second baffle plate and the third baffle plate are sequentially and horizontally arranged in the shell from top to bottom, the space between the first baffle plate and the second baffle plate in the shell is a first filter cavity, the space between the second baffle plate and the third baffle plate is a second filter cavity, the space between the third baffle plate and the bottom of the shell is a third filter cavity, the two ends of the second baffle plate are 85-shaped, the two ends of the first baffle plate are provided with first through holes, the cross section of the first through hole is in a reverse conical shape, the first filter cavity is communicated with the first through hole, the first filter plate is vertically and symmetrically provided with filter plates, the two filter plates, the distance between the two filter plates is smaller than the distance between the two first through holes, the two filter plates, the first through holes is arranged at the lower end of the first filter plate, the lower end of the impeller, the impeller is fixedly connected with the impeller, the impeller.

Preferably, a conical plate is connected to the upper portion of the first partition plate through a spring, the conical plate is located right below the oil inlet, an irregular bulge is arranged on the upper surface of the conical plate, two first air bags are arranged below the conical plate, and the first air bags are communicated with an air cavity of a first air cylinder. During the use, when machine oil falls from the oil inlet, pound on the anomalous arch of conical plate upper surface that falls under for conical plate extrudees an gasbag downwards, the air cavity of a cylinder is leading-in through the trachea after the gas compression in the gasbag, the increase of air pressure in the air cavity of a cylinder, thereby promote the reciprocal level of two telescopic links of a cylinder flexible, and then promote two filters and slide toward both sides, make a cylinder avoid external air supply, the energy has been practiced thrift.

Preferably, one side of the filter plate, which is far away from the first air cylinder, is vertically and fixedly provided with a third air cylinder, the end of the telescopic rod of the third air cylinder is fixedly connected with a steel wire brush, and the steel wire brush is used for removing sundries on the first filter screen. When the engine oil filter is used, the two filter plates slide to two sides under the pushing of the first air cylinder, so that negative pressure is formed between the two filter plates, the engine oil on two sides of the filter plates is pumped to a position between the two filter plates through the first filter screen under the action of the negative pressure, the engine oil is primarily filtered, and impurities can be attached to the first filter screen along with the increase of the service time; no. three cylinders promote the vertical reciprocal slip of the steel brush of connection under the effect of external air supply to be stained with the impurity that attaches on the clearance first filter screen, avoid first filter screen jam, thereby improve the work efficiency of device.

Preferably, a buffer plate is arranged above the third partition plate through a spring and located under the second through hole, irregular protrusions are arranged on the upper surface of the buffer plate, a third air bag is arranged below the buffer plate, and the third air bag is communicated with an air cavity of the third air cylinder. During the use, when the engine oil passes through first one-way filter screen, pound on the anomalous arch of buffer board upper surface that falls under for buffer board extrudees No. three gasbags downwards, in the leading-in air cavity to No. three cylinders of trachea behind the gas compression in the No. three gasbags, the increase of air pressure in the air cavity of No. three cylinders, thereby the vertical reciprocating slide of steel brush that promotes the connection, be stained with the impurity that attaches on cleaing away the first filter screen, external air supply has been avoided to No. three cylinders, the energy has been practiced thrift.

Preferably, one side of the cam, which is close to the shell, is provided with a second air bag, and the second air bag is used for buffering friction between the cam and the side wall of the shell; the second air bag is communicated with an air cavity of the second air cylinder. During the use, when the cam rotated along with the impeller under the effect of belt, can extrude the No. two gasbags that are equipped with on the casing lateral wall, avoided cam and casing lateral wall friction on the one hand, on the other hand passes through the trachea with the gas after the compression in No. two gasbags and channels into the air cavity of No. two cylinders, provides the air supply for No. two cylinders to the energy has been practiced thrift.

Preferably, a sleeve is fixedly installed on the side wall of the shell of the second filter cavity; a push rod is arranged in the sleeve in a sliding manner, and one end of the push rod positioned outside the sleeve is fixedly connected with the brush plate; the bottom of the brush plate is provided with brush hair, and the brush plate is right opposite to the second one-way filter screen. During the use, when the one-way filter screen of second is passed through to engine oil, because the brush board is just facing the one-way filter screen of second to make the brush board reciprocating sliding in the sleeve of push rod of drive connection under the impact of engine oil, the brush hair that the brush board bottom set up clears up second filter screen surface, is stained with on the avoiding second filter screen and attaches the too much production jam of impurity, improves the work efficiency of device.

The invention has the following beneficial effects:

1. according to the method for improving the engine oil filtering efficiency, the filtering device used in the method improves the engine oil filtering effect by leading the engine oil into the oil inlet cavity and filtering the engine oil layer by layer through the first filtering cavity, the second filtering cavity and the third filtering cavity; set up simultaneously and mix module, its machine oil that is used for falling into first through-hole and mix for machine oil passes first filter screen, improves the filtration efficiency of machine oil.

2. The invention relates to a method for improving the filtering efficiency of engine oil, wherein a conical plate is arranged above a first partition plate, when the engine oil falls from an oil inlet, the conical plate drops on irregular bulges on the upper surface of the conical plate right below, so that the conical plate downwards extrudes an air bag, gas in the air bag is compressed and then is guided into an air cavity of an air cylinder through an air pipe, the air pressure in the air cavity of the air cylinder is increased, two telescopic rods of the air cylinder are pushed to horizontally stretch back and forth, two filter plates are pushed to slide towards two sides, negative pressure is formed between the two filter plates, positive pressure is formed outside the two filter plates, on one hand, the engine oil on two sides of the filter plates is pumped between the two filter plates under the action of the negative pressure, the engine oil backflow is avoided, and on the other hand, impurities on the surface of a second partition plate can be pushed into L-shaped depressions at two ends when the two filter plates slide towards two.

3. According to the method for improving the engine oil filtering efficiency, the filtering device used in the method is characterized in that a third air cylinder is vertically arranged on one side, away from the first air cylinder, of a filtering plate, the end of a telescopic rod of the third air cylinder is connected with a steel wire brush, when engine oil passes through a first one-way filtering net, the oil drops on an irregular bulge on the upper surface of a buffering plate right below the filtering plate, so that the buffering plate downwards extrudes a third air bag, air in the third air bag is compressed and then is guided into an air cavity of the third air cylinder through an air pipe, the air pressure in the air cavity of the third air cylinder is increased, the connected steel wire brush is pushed to vertically slide in a reciprocating manner, impurities attached to a first filtering net are removed, the first filtering net is prevented from being blocked, and.

4. According to the method for improving the engine oil filtering efficiency, the brush plate is arranged on one side of the second one-way filter screen, when engine oil passes through the second one-way filter screen, the brush plate faces the second one-way filter screen, so that the push rod which is in pushing connection with the brush plate under the impact of the engine oil slides in the sleeve in a reciprocating mode, the brush bristles arranged at the bottom of the brush plate clean the surface of the second filter screen, the second filter screen is prevented from being blocked due to excessive impurities, and the filtering efficiency of the device is improved.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a flow chart of a method of the present invention;

FIG. 2 is a schematic view of a filter arrangement for use in the present invention;

in the figure: the filter comprises a shell 1, an end cover 2, a first partition plate 3, a first through hole 31, a conical plate 32, a first air bag 33, a second partition plate 4, a second through hole 41, a first unidirectional filter screen 42, a third partition plate 5, a second filter screen 51, a buffer plate 52, a third air bag 53, an oil inlet 6, an oil outlet 7, a first filter chamber 8, a filter plate 81, a first filter screen 82, a first air cylinder 83, a stirring module 84, an impeller 841, a belt 842, a cam 843, a third air cylinder 85, a steel wire brush 86, a second air bag 87, a second filter chamber 9, a fixing plate 91, an oil guide hole 92, a second unidirectional filter screen 93, a movable plate 94, a second air cylinder 95, a sleeve 96, a brush plate 97, a push rod 98 and a third filter chamber 10.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 2, the method for improving the oil filtering efficiency according to the present invention comprises the following steps:

the filter device comprises a shell 1, an end cover 2, a first partition board 3, a second partition board 4, a third partition board 5, an oil inlet 6 and an oil outlet 7, wherein the end cover 2 is detachably arranged above the shell 1 through a first partition board 3, an oil inlet chamber is formed by the end cover 2 and the first partition board 3 when the impeller 81 and the impeller 41 slide to the lower end of a cylinder 843, the impeller is arranged in a cylinder 843, a filter board 843 is arranged in a cylinder 843, a second partition board 4 and a third partition board 5 are sequentially and horizontally arranged in the shell 1 from top to bottom, a space between the first partition board 3 and the second partition board 4 in the shell 1 is a first filter chamber 8, a second filter chamber 9, a space between the third partition board 5 and the bottom of the shell 1 is a third filter chamber 10, two ends of the second partition board 4 are L-shaped, two ends of the first partition board 3 are respectively provided with a first through hole 31, the cross section of the first through hole 31 is in a shape, the first filter plate 31, the first filter chamber 8 is communicated with a first filter chamber 8, the first filter chamber 8 is communicated with the first filter chamber 8, the first filter chamber 8 is communicated with the first filter chamber, the first filter chamber 841, the first filter chamber 83, the first filter chamber 843, the second filter chamber 843, the first filter chamber is fixedly connected with the second filter chamber 843, a filter chamber 83, a filter chamber 843, a filter chamber is fixedly connected with the filter chamber, a filter chamber 843, a filter chamber 83, a filter chamber 843, a filter plate 843 is fixedly connected with a filter plate 843, a filter plate module is fixedly connected with a filter plate 843, a filter plate module is fixedly connected with a filter plate 843, a filter plate module is fixedly connected with a filter plate 843, a filter plate module, a filter plate 843, a filter plate module is fixedly connected with a filter plate 843, a filter plate module is fixedly connected with a filter plate 843, a filter plate module, a filter plate 843, a filter plate module is fixedly connected with a filter plate module, a filter plate 843, a filter plate module is fixedly connected with a filter plate 843, a filter plate module is fixedly connected with a filter plate module, a filter plate 843, a filter plate module, a filter plate 843, a filter plate module is fixedly connected with a filter plate 843, a filter plate module is fixedly connected with a filter plate 843, a filter plate module is fixedly connected with a filter plate module, a filter plate 843, a filter plate module.

As an embodiment, a conical plate 32 is connected above the first partition plate 3 through a spring, the conical plate 32 is located right below the oil inlet 6, an irregular protrusion is arranged on the upper surface of the conical plate 32, two first air bags 33 are arranged below the conical plate 32, and the first air bags 33 are communicated with air cavities of the first air cylinders 83. During the use, when machine oil falls from oil inlet 6, pound on the anomalous arch of conical plate 32 upper surface that falls under, make conical plate 32 extrude gasbag 33 downwards, the gaseous compression back in gasbag 33 is leading-in to the gas chamber of a cylinder 83 through the trachea, the increase of air pressure in the gas chamber of a cylinder 83, thereby promote the reciprocal level of two telescopic links of a cylinder 83 to stretch out and draw back, and then promote two filter 81 and slide towards both sides, make a cylinder 83 avoid external air supply, the energy has been practiced thrift.

In one embodiment, a third cylinder 85 is vertically and fixedly mounted on one side of the filter plate 81, which is far away from the first cylinder 83, the ends of the telescopic rods of the third cylinder 85 are fixedly connected with a wire brush 86, and the wire brush 86 is used for removing impurities on the first filter screen 82. When the engine oil filter is used, the two filter plates 81 slide to two sides under the pushing of the first air cylinder 83, so that negative pressure is formed between the two filter plates 81, the engine oil on two sides of the filter plates 81 is pumped between the two filter plates 81 through the first filter screen 82 under the action of the negative pressure, the engine oil is primarily filtered, and impurities are attached to the first filter screen 82 along with the increase of the service time; no. three cylinder 85 promotes the vertical reciprocating sliding of the steel brush 86 of connection under the effect of external air supply to the impurity that is stained with on the first filter screen 82 of clearance avoids first filter screen 82 to block up, thereby improves the work efficiency of device.

As an embodiment of the air-conditioning system, a buffer plate 52 is mounted above the third partition plate 5 through a spring, the buffer plate 52 is located right below the second through hole 41, an irregular protrusion is arranged on the upper surface of the buffer plate 52, a third air bag 53 is arranged below the buffer plate 52, and the third air bag 53 is communicated with an air chamber of a third air cylinder 85. During the use, when the engine oil passes through first one-way filter screen 42, pound on the anomalous arch of buffer board 52 upper surface that falls under, make buffer board 52 extrude No. three gasbags 53 downwards, gas compression in No. three gasbags 53 is back through the trachea leading-in to the air cavity of No. three cylinder 85, No. three cylinder 85's the interior atmospheric pressure increase of air cavity, thereby promote the vertical reciprocating sliding of steel brush 86 of connection, be stained with the impurity that attaches on cleaing away first filter screen 82, No. three cylinder 85 has avoided external air supply, the energy has been practiced thrift.

As one embodiment, a second air bag 87 is arranged on one side of the cam 843 close to the shell 1, and the second air bag 87 is used for buffering the friction between the cam 843 and the side wall of the shell 1; the second air bag 87 is communicated with an air cavity of the second air cylinder 95. During the use, when cam 843 rotated along with impeller 841 under the effect of belt 842, can extrude No. two gasbags 87 that are equipped with on the 1 lateral wall of casing, avoided

cam

843 and 1 lateral wall friction of casing on the one hand, on the other hand with the gaseous intracavity of leading-in No. two cylinders 95 of No. two gasbags 87 internal compression through the trachea, for No. two cylinders 95 provide the air supply to the energy has been practiced thrift.

As one embodiment, a sleeve 96 is fixedly mounted on the side wall of the housing 1 of the second filter chamber 9; a push rod 98 is slidably mounted in the sleeve 96, and one end of the push rod 98 positioned outside the sleeve 96 is fixedly connected with a brush plate 97; the bottom of the brush plate 97 is provided with brush hairs, and the brush plate 97 faces the second one-way filter screen 93. During the use, when the engine oil passes through one-way filter screen 93 of second, because brush board 97 is just facing to one-way filter screen 93 of second to make brush board 97 promote the push rod 98 of connection under the impact of engine oil and reciprocating sliding in sleeve 96, the brush hair that brush board 97 bottom set up clears up second filter screen 51 surface, avoids being stained with on second filter screen 51 and attaches the too much production jam of impurity, improves the work efficiency of device.

When the oil enters the oil inlet cavity from the oil inlet 6 and then flows into the first filter cavity 8 from the first through holes 31 at both sides, when the oil falls from the first through holes 31, the oil impacts the impeller 841 located right below the first through holes 31 so that the impeller 841 rotates on the sliding shaft, when the oil falls from the first through holes 31, the impeller 841 rotates to the cam 843 so that the cam 843 rotates synchronously with the impeller 841, the impeller 841 and the cam 843 agitate the oil during rotation, the second air bag 87 is located at the side of the housing 1, when the oil falls from the oil inlet 6, the conical plate 32 falls on the irregular projection of the upper surface of the conical plate 32 right below, the conical plate 32 downwardly presses the first air bag 33, the air in the first air bag 33 is compressed and then introduced into the air cavity of the first air cylinder 83 through the air tube, the air bag 83, the air pressure of the first air cylinder 83 increases, so that the oil is pushed horizontally by the two air of the first air bag 83, thereby pushing the oil to push the oil filter screen 81, thereby pushing the oil from the air bag 83 horizontally, thereby pushing the oil filter screen 80, the oil filter screen 80 and pushing the air bag 80 to the air bag 80, the air bag 82, when the oil filter screen 21 is pushed by the air bag 80, the air bag 82 is pushed by the air bag 82, the air bag 80, the air bag 82 is pushed by the air bag 23, the air bag 23 is pushed by the air bag 23, the air bag is pushed by the air bag, the air bag is pushed by the air bag 2, the air bag 23, the air bag is pushed by the air bag 23, the air bag 2, the air bag 23, the air bag is pushed by the air bag, the air bag 2, the air bag is pushed by the air bag, the air bag 23, the air bag is pushed by the air bag, the air bag 23, the air bag is pushed by the air bag, the air bag 23, the air bag is pushed by the air bag, the air bag is pushed by the air bag.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in fig. 2, which is based on the orientation or positional relationship shown in fig. 2, and is used merely for convenience in describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be taken as limiting the scope of the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A method for improving the filtration efficiency of engine oil is characterized by comprising the following steps:

wherein, S3-S5 comprises the following steps: the engine oil enters the oil inlet cavity from the oil inlet (6) and then flows into the first filter cavity (8) from the first through holes (31) on the two sides; when the engine oil falls from the first through hole (31), the engine oil impacts an impeller (841) positioned right below the first through hole (31) so that the impeller (841) rotates on a sliding shaft; the impeller (841) transmits power to the cam (843) through the belt (842), so that the cam (843) synchronously rotates along with the impeller (841), the impeller (841) and the cam (843) stir the engine oil in the rotating process, and one side of the cam (843) close to the shell (1) is provided with a second air bag (87); meanwhile, the conical plate (32) is arranged above the first partition plate (3), when engine oil falls down from the oil inlet (6), the engine oil is smashed on the irregular protrusion on the upper surface of the conical plate (32) right below, the conical plate (32) downwards extrudes the first air bag (33), air in the first air bag (33) is compressed and then is guided into the air cavity of the first air cylinder (83) through the air pipe, the air pressure in the air cavity of the first air cylinder (83) is increased, so that the two telescopic rods of the first air cylinder (83) are pushed to horizontally stretch and reciprocate, the two filter plates (81) are further pushed to slide towards two sides, negative pressure is formed between the two filter plates (81), and positive pressure is formed outside the two filter plates (81); under the action of negative pressure, engine oil on the outer sides of the two filter plates (81) is filtered by the first filter screen (82) and then is pumped between the two filter plates (81), and the engine oil is filtered for one time;

then, the engine oil falls into a second filter cavity (9) from a second through hole (41) on a second partition plate (4), and a first one-way filter screen (42) at the bottom end of the second through hole (41) filters the engine oil again; meanwhile, when the cam (843) rotates along with the impeller (841) under the action of the belt (842), a second air bag (87) arranged on the side wall of the shell (1) can be extruded, compressed air in the second air bag (87) is guided into an air cavity of a second air cylinder (95) through an air pipe, an air source is provided for the second air cylinder (95), and the second air cylinder (95) pushes a connected movable plate (94) to horizontally slide in a reciprocating manner; under the pushing of the movable plate (94), the engine oil passes through the oil guide hole (92) at the lower end of the fixed plate (91), and is filtered again through the second one-way filter screen (93) while passing through;

the engine oil falls into a third filter chamber (10) after being filtered by a second filter screen (51) at the left end of a third partition plate (5) and finally flows out of an oil outlet (7), wherein the engine oil falls into a first filter chamber (8) from an oil inlet chamber, a first air cylinder (83) pushes two filter plates (81) to slide towards two sides, negative pressure is formed between the two filter plates (81), the engine oil at two sides of the filter plates (81) is pumped between the two filter plates (81) under the action of the negative pressure, the engine oil is prevented from flowing back, on the other hand, when the two filter plates (81) slide towards two sides, impurities on the surface of the second partition plate (4) can be pushed into L-shaped concave parts at two ends, when the engine oil falls from a first through hole (31), the impeller (841) positioned right below the first through hole (31) can be impacted, the impeller (841) rotates on a sliding shaft, the impeller (841) transmits power to a cam (843) through a belt (842), the cam (843) rotates along with the cam (841) synchronously, the engine oil and the impeller (841) and the engine oil and the impeller (843) and the engine oil is prevented from flowing back in the first filter plate (81), the filter plate (82) when the engine oil flows down, the two filter plates (81) and the one-way filter plates (82) and the one-way filter screen (82) is accelerated, the one-way filter plate (82) and the one-way filter screen filter plate (82) is accelerated when the two filter plate (82) moves, the two filter plate (81) and the engine oil is used, the two filter plate (82);

the third cylinder (85) is vertically arranged on one side, far away from the first cylinder (83), of the filter plate (81), the end of a telescopic rod of the third cylinder (85) is connected with the steel wire brush (86), when engine oil passes through the first one-way filter screen (42), the engine oil drops on an irregular bulge on the upper surface of the buffer plate (52) right below the buffer plate, so that the buffer plate (52) downwards extrudes the third air bag (53), gas in the third air bag (53) is compressed and then is guided into an air cavity of the third cylinder (85) through an air pipe, the air pressure in the air cavity of the third cylinder (85) is increased, the connected steel wire brush (86) is pushed to vertically slide in a reciprocating manner, impurities attached to the first filter screen (82) are removed, the first filter screen (82) is prevented from being blocked, and the working efficiency of the device is improved; when engine oil passes through the second one-way filter screen (93), the brush plate (97) is opposite to the second one-way filter screen (93), so that the brush plate (97) pushes the connected push rod (98) to slide in the sleeve (96) in a reciprocating manner under the impact of the engine oil, bristles arranged at the bottom of the brush plate (97) clean the surface of the second filter screen (51), the second filter screen (51) is prevented from being blocked due to excessive impurities, and the working efficiency of the device is improved;

the filter device comprises a shell (1), an end cover (2), a first partition plate (3), a second partition plate (4), a third partition plate (5), an oil inlet (6) and an oil outlet (7), wherein the end cover (2) is detachably mounted above the shell (1) through the first partition plate (3), the end cover (2) and the first partition plate (3) form an oil inlet chamber, the end cover (2) is conical, the top of the end cover (2) is provided with an oil inlet (6), the right side of the bottom of the shell (1) is provided with the oil outlet (7), a second partition plate (4) and a third partition plate (5) are sequentially and horizontally arranged in the shell (1) from top to bottom, a space between the first partition plate (3) and the second partition plate (4) in the shell (1) is a first filter chamber (8), a space between the second partition plate (4) and the third partition plate (5) is a second filter chamber (9), a third filter chamber (5) and a filter plate (1) is a filter plate (83) fixed by a filter plate (843), a filter plate (8483) and a filter plate (3), a filter plate (8483) is fixedly connected with a filter plate (3), a filter plate (83) and a filter plate (3), a filter plate (3) is fixedly connected with a filter plate (21), a filter plate (3), a filter plate (21), a filter plate (3) fixed by a filter plate (3), a filter plate (3) is arranged in the filter plate (3), a filter plate (3) fixed plate (3), a filter plate (3) is arranged in the filter plate (3) fixed in the filter plate, a filter plate (3) is arranged in the filter plate (3), a filter plate (3) fixed plate, a filter plate (3) fixed plate (fixed plate, a filter plate (3) fixed plate (3) is arranged in the filter plate, a filter plate (3) fixed plate, a filter plate (3) fixed plate, a filter plate (fixed plate, a fixed plate (fixed plate, a filter plate (fixed plate, a fixed plate (fixed plate, a fixed plate (fixed plate, a fixed;

a conical plate (32) is connected above the first partition plate (3) through a spring, the conical plate (32) is located right below the oil inlet (6), an irregular bulge is arranged on the upper surface of the conical plate (32), two first air bags (33) are arranged below the conical plate (32), and the first air bags (33) are communicated with air cavities of the first air cylinders (83); a third cylinder (85) is vertically and fixedly installed on one side, away from the first cylinder (83), of the filter plate (81), the ends of telescopic rods of the third cylinder (85) are fixedly connected with steel wire brushes (86), and the steel wire brushes (86) are used for removing sundries on the first filter screen (82);

a buffer plate (52) is mounted above the third partition plate (5) through a spring, the buffer plate (52) is located under the second through hole (41), irregular protrusions are arranged on the upper surface of the buffer plate (52), a third air bag (53) is arranged below the buffer plate (52), and the third air bag (53) is communicated with an air cavity of a third air cylinder (85);

a second air bag (87) is arranged on one side, close to the shell (1), of the cam (843), and the second air bag (87) is used for buffering friction between the cam (843) and the side wall of the shell (1); the second air bag (87) is communicated with an air cavity of the second air cylinder (95).

2. The method of claim 1, wherein the step of increasing the filtration efficiency of the engine oil comprises the steps of: a sleeve (96) is fixedly arranged on the side wall of the shell (1) of the second filter cavity (9); a push rod (98) is arranged in the sleeve (96) in a sliding manner, and one end of the push rod (98) positioned outside the sleeve (96) is fixedly connected with a brush plate (97); the bottom of the brush plate (97) is provided with brush hair, and the brush plate (97) is right opposite to the second one-way filter screen (93).