CN112983684A - Carburetor with novel filtering device - Google Patents
Carburetor with novel filtering device Download PDFInfo
- Publication number
- CN112983684A CN112983684A CN201911313331.XA CN201911313331A CN112983684A CN 112983684 A CN112983684 A CN 112983684A CN 201911313331 A CN201911313331 A CN 201911313331A CN 112983684 A CN112983684 A CN 112983684A
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- Prior art keywords
- filter
- dust
- box
- air inlet
- carburetor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M17/00—Carburettors having pertinent characteristics not provided for in, or of interest apart from, the apparatus of preceding main groups F02M1/00 - F02M15/00
- F02M17/34—Other carburettors combined or associated with other apparatus, e.g. air filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M19/00—Details, component parts, or accessories of carburettors, not provided for in, or of interest apart from, the apparatus of groups F02M1/00 - F02M17/00
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to the technical field of carburettors, in particular to a carburetor with a novel filtering device, which comprises a carburetor body and a filtering box, wherein the filtering box is provided with an inner cavity, a filtering mechanism is arranged in the filtering box, a dust removing mechanism is also arranged in the filtering box, a connecting pipe is connected between the filtering mechanism and the dust removing mechanism, an air inlet pipe communicated with the dust removing mechanism is fixedly arranged on the filtering box, an air outlet pipe communicated with the filtering mechanism is also fixedly arranged on the filtering box, and the air outlet end of the air outlet pipe is connected with the air inlet end of the carburetor body; the filter screen can intercept large-particle dust in the air, so that the content of the dust entering the filter cartridge is reduced, and the service cycle of the filter cartridge can be effectively prolonged; when the central shaft of the dust collector drives the filter screen to rotate, the brush sweeps off dust stained on the filter screen, and the problem that the air inlet efficiency is reduced due to the fact that the filter screen is blocked by the dust is avoided.
Description
Technical Field
The invention relates to the technical field of carburettors, in particular to a carburetor with a novel filtering device.
Background
The carburetor is a mechanical device for mixing gasoline and air in a certain proportion under the action of vacuum produced by the operation of an engine, the carburetor is used as a precise mechanical device, the atomization of the gasoline is realized by utilizing the kinetic energy of sucked air flow, the important action of the carburetor on the engine can be called as the heart of the engine, the complete device comprises a starting device, an idling device, a medium load device, a full load device and an accelerating device, the carburetor can automatically prepare corresponding concentration according to different working state requirements of the engine and output corresponding amount of mixed gas, and in order to ensure that the prepared mixed gas is mixed more uniformly, the carburetor also has the effect of atomizing fuel oil so as to ensure that the machine can normally operate.
The filtering effect of the existing air filtering device of the carburetor is general, the filter element needs to be frequently replaced to ensure the air filtering effect, and the carburetor is complex in use.
Disclosure of Invention
The invention aims to solve the technical problem of providing a carburetor with a novel filtering device, wherein the filter element has long service life and is convenient to replace, so that the problems in the prior art are solved.
In order to solve the technical problems, the technical scheme of the invention is as follows: a carburetor with a novel filtering device comprises a carburetor body and a filtering box; the carburetor is characterized in that the filter box is provided with an inner cavity, a filter mechanism is arranged in the filter box, a dust removal mechanism is further arranged in the filter box, a connecting pipe is connected between the filter mechanism and the dust removal mechanism, an air inlet pipe communicated with the dust removal mechanism is fixedly mounted on the filter box, an air outlet pipe communicated with the filter mechanism is further fixedly mounted on the filter box, and an air outlet end of the air outlet pipe is connected with an air inlet end of the carburetor body.
As a preferred technical scheme, the dust removing mechanism comprises a cylindrical dust removing cylinder fixedly arranged in the filter box, the axis of the dust removing cylinder extends forwards and backwards, and the front end and the rear end of the dust removing cylinder are sealed by the inner wall of the filter box; an air inlet and an air outlet are arranged on the peripheral surface of the dust removing cylinder, the air inlet is connected with the air inlet pipe, and the air outlet is connected with the connecting pipe; a central shaft coaxial with the dust removal cylinder is rotatably mounted in the filter box, an annular filter screen is coaxially rotatably mounted on the central shaft through a support arm, the filter screen covers the air inlet and the air outlet, and a driving motor for driving the central shaft to rotate is fixedly mounted on the filter box; the lower side of the dust removing cylinder is also provided with a dust outlet, a brush is fixedly installed in the dust outlet, and the brush hair of the brush is in contact with the filter screen.
As a further improvement, a cleaning port positioned below the dust outlet is arranged on the lower side wall of the filter box, and a pipeline is connected between the dust outlet and the cleaning port; a dust collecting box with an opening at the upper end is arranged below the cleaning opening, a mounting groove matched with the upper end of the dust collecting box is arranged on the outer side of the lower side wall of the filter box, the cleaning opening is communicated with the mounting groove, and the dust collecting box is movably mounted in the mounting groove; and a locking mechanism is arranged between the dust collecting box and the mounting groove.
As a preferred technical scheme, the locking mechanism comprises an installation cavity positioned in the lower side wall of the filter box, the installation cavity is provided with a through hole which extends towards the installation groove and is communicated with the installation groove, a locking pin is movably installed in the through hole, and the dust collection box is provided with a locking groove matched with the locking pin; a check block positioned in the mounting cavity is fixedly mounted on the locking pin, and a first spring is arranged between one side of the check block, which is far away from the locking pin, and the mounting cavity; the downside of dog still fixed mounting have the shifting block, the lower lateral wall of filter box with shifting block relevant position department is equipped with the rectangular hole, the shifting block is followed the rectangular hole is worn out extremely the outside of filter box can be followed the rectangular hole removes.
As a preferable technical scheme, the filtering mechanism comprises a cylindrical filtering cylinder fixedly installed in the filtering cylinder, the axis of the filtering cylinder extends forwards and backwards, and the front end and the rear end of the filtering cylinder are sealed by the inner wall of the filtering cylinder; an air inlet hole and an air outlet hole are arranged on the peripheral surface of the filter cylinder, the air inlet hole is connected with one end of the air inlet pipe, which is far away from the dust removing cylinder, and the air outlet hole is connected with the air outlet pipe; the filter cartridge is internally provided with a filter element, the filter element covers the air inlet and the air outlet, a round hole for replacing the filter element is arranged at the corresponding position of the front side wall of the filter cartridge and the filter cartridge, and a sealing cover is screwed in the round hole.
As a further improvement, a knob is fixedly arranged on the outer side of the sealing cover.
As a further improvement, a push plate is movably mounted in the filter cartridge from front to back, and a second spring is connected between the rear side of the push plate and the side wall of the filter cartridge.
As a further improvement, the filter box is filled with soundproof cotton.
By adopting the technical scheme, the carburetor with the novel filtering device comprises a carburetor body and a filtering box, wherein the filtering box is provided with an inner cavity, a filtering mechanism is arranged in the filtering box, a dust removing mechanism is also arranged in the filtering box, a connecting pipe is connected between the filtering mechanism and the dust removing mechanism, an air inlet pipe communicated with the dust removing mechanism is fixedly arranged on the filtering box, an air outlet pipe communicated with the filtering mechanism is also fixedly arranged on the filtering box, and the air outlet end of the air outlet pipe is connected with the air inlet end of the carburetor body; the filter screen can intercept large-particle dust in the air, so that the content of the dust entering the filter cartridge is reduced, and the service cycle of the filter cartridge can be effectively prolonged; when the central shaft drives the filter screen to rotate, the brush sweeps off dust stained on the filter screen, so that the problem that the air inlet efficiency is reduced due to the fact that the filter screen is blocked by the dust is avoided; the dust collecting box is convenient to pull the shifting block to drive the locking pin to be separated from the locking groove, so that the dust collecting box can be taken down from the mounting groove, and the dust collecting box can be conveniently detached regularly to clean dust; the filter element can be replaced by screwing down the sealing cover, and the filter element is convenient to replace; when the filter element is replaced, the filter element is pushed out of the round hole forwards when the push plate moves forwards, so that the filter element is convenient to take out; the filter box is filled with soundproof cotton, and has the advantage of low air inlet noise.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion I of FIG. 1;
FIG. 3 is an enlarged view of a portion II of FIG. 1;
FIG. 4 is a cross-sectional view A-A of the filter cassette of FIG. 1;
fig. 5 is a cross-sectional view B-B of the filter cassette of fig. 1.
In the figure: 1-a carburetor body; 101-an air inlet end; 2-a filter cartridge; 3-connecting pipe; 4, an air inlet pipe; 5-air outlet pipe; 6-a dust removal cylinder; 7-an air inlet; 8-air outlet; 9-central axis; 10-a support arm; 11-a filter screen; 12-a dust outlet; 13-a brush; 14-cleaning the mouth; 15-a pipeline; 16-a dust collecting box; 17-mounting grooves; 18-a mounting cavity; 19-a through hole; 20-a locking pin; 21-tightening the groove; 22-a stop block; 23-a first spring; 24-a shifting block; 25-elongated holes; 26-a filter cartridge; 27-an air intake; 28-air outlet holes; 29-a filter element; 30-round holes; 31-a sealing cover; 32-rotating handle; 33-a push plate; 34-a second spring; 35-soundproof cotton; 36-drive the motor.
Detailed Description
As shown in fig. 1 to 5, a carburetor with a novel filter device includes a carburetor body 1 and a filter cartridge 2; the carburetor is characterized in that the filter box 2 is provided with an inner cavity, a filter mechanism is arranged in the filter box 2, a dust removal mechanism is further arranged in the filter box 2, a connecting pipe 3 is connected between the filter mechanism and the dust removal mechanism, an air inlet pipe 4 communicated with the dust removal mechanism is fixedly mounted on the filter box 2, an air outlet pipe 5 communicated with the filter mechanism is further fixedly mounted on the filter box 2, and an air outlet end of the air outlet pipe 5 is connected with an air inlet end 101 of the carburetor body 1.
During the use, the air loops through intake pipe 4, dust removal mechanism, connecting pipe 3, filter mechanism and outlet duct 5 and gets into carburetor body 1 at last, and dust removal mechanism can carry out prefilter to the air, reduces the dust content that carries when the air gets into filter mechanism, then further filters the air through filter mechanism, gets into in the carburetor body 1 at last.
The dust removal mechanism comprises a cylindrical dust removal cylinder 6 fixedly arranged in the filter box 2, the axis of the dust removal cylinder 6 extends forwards and backwards, and the front end and the rear end of the dust removal cylinder 6 are sealed by the inner wall of the filter box 2; an air inlet 7 and an air outlet 8 are arranged on the peripheral surface of the dust removing cylinder 6, the air inlet 7 is connected with the air inlet pipe 4, and the air outlet 8 is connected with the connecting pipe 3; a central shaft 9 coaxial with the dust removing cylinder 6 is rotatably mounted in the filter box 2, an annular filter screen 11 is coaxially rotatably mounted on the central shaft 9 through a support arm 10, the filter screen 11 covers both the air inlet 7 and the air outlet 8, and a driving motor 36 for driving the central shaft 9 to rotate is fixedly mounted on the filter box 2; the lower side of the dust removing cylinder 6 is also provided with a dust outlet 12, a brush 13 is fixedly installed in the dust outlet 12, and bristles of the brush 13 are in contact with the filter screen 11.
When the air gets into dust removal section of thick bamboo 6 through intake pipe 4 and air inlet 7, filter screen 11 carries out the prefilter to the air, and the air that gets into in the dust removal section of thick bamboo 6 is behind filter screen 11 prefilter, discharges through gas outlet 8 and gets into cartridge filter 26 through connecting pipe 3 in, and filter screen 11 can be with the dust interception of the big granule in the air to reduce the dust content who gets into in cartridge filter 26, thereby can effectively prolong the life cycle of filter core 29. When the driving motor 36 works, the central shaft 9 is driven to rotate, the central shaft 9 drives the filter screen 11 to rotate through the supporting arm 10, so that the filter screen 11 and the brush 13 move relatively, the brush 13 sweeps off dust stained on the filter screen 11, the filter screen 11 is kept clean, and the problem that the dust blocks the filter screen 11 to reduce air inlet efficiency is avoided.
A cleaning opening 14 positioned below the dust outlet 12 is formed in the lower side wall of the filter box 2, and a pipeline 15 is connected between the dust outlet 12 and the cleaning opening 14; a dust collecting box 16 with an opening at the upper end is arranged below the cleaning port 14, an installation groove 17 matched with the upper end of the dust collecting box 16 is arranged on the outer side of the lower side wall of the filter box 2, the cleaning port 14 is communicated with the installation groove 17, and the dust collecting box 16 is movably arranged in the installation groove 17; a locking mechanism is arranged between the dust collecting box 16 and the mounting groove 17.
After being swept by the brush 13, the dust on the filter screen 11 sequentially passes through the dust outlet 12, the pipeline 15 and the cleaning port 14 and then falls down into the dust collection box 16, and the dust collection box 16 is movably arranged in the installation groove 17, so that the dust collection box 16 can be conveniently and periodically detached to clean the dust.
The locking mechanism comprises a mounting cavity 18 positioned in the lower side wall of the filter box 2, the mounting cavity 18 is provided with a through hole 19 which extends towards the mounting groove 17 and is communicated with the mounting groove 17, a locking pin 20 is movably mounted in the through hole 19, and a locking groove 21 matched with the locking pin 20 is arranged on the dust collection box 16; a stop block 22 positioned in the mounting cavity 18 is fixedly mounted on the locking pin 20, and a first spring 23 is arranged between one side of the stop block 22 far away from the locking pin 20 and the mounting cavity 18; the downside of dog 22 still fixed mounting have a shifting block 24, the lower lateral wall of filter box 2 with shifting block 24 relevant position department is equipped with rectangular hole 25, shifting block 24 follow rectangular hole 25 wear out to the outside of filter box 2 can follow the rectangular hole 25 removes.
When the dust collection box 16 is used, the shifting block 24 is shifted to drive the stop block 22 to move to one side far away from the installation groove 17, the first spring 23 is compressed, meanwhile, the stop block 22 drives the locking pin 20 to be separated from the locking groove 21 and completely retracted into the through hole 19, and then the dust collection box 16 can be downwards taken down from the installation groove 17; when the dust collection box is installed again, firstly, the shifting block 24 is shifted to enable the locking pin 20 to be completely retracted into the through hole 19, then, the upper end of the dust collection box 16 is inserted into the installation groove 17, the locking groove 21 is aligned with the through hole 19, then, the shifting block 24 is released, the first spring 23 in a compressed state pushes the stop 22 to move towards one side close to the installation groove 17, and the stop 22 drives the locking pin 20 to be inserted into the locking groove 21, so that the dust collection box 16 cannot be separated from the installation groove 17.
The filter mechanism comprises a cylindrical filter cartridge 26 fixedly installed in the filter box 2, the axis of the filter cartridge 26 extends forwards and backwards, and the front end and the rear end of the filter cartridge 26 are sealed by the inner wall of the filter box 2; an air inlet hole 27 and an air outlet hole 28 are arranged on the peripheral surface of the filter cylinder 26, the air inlet hole 27 is connected with one end of the air inlet pipe 4 far away from the dust removing cylinder 6, and the air outlet hole 28 is connected with the air outlet pipe 5; a filter element 29 is arranged in the filter cartridge 26, the air inlet 27 and the air outlet 28 are both covered by the filter element 29, a round hole 30 for replacing the filter element 29 is arranged at the corresponding position of the front side wall of the filter box 2 and the filter cartridge 26, and a sealing cover 31 is screwed in the round hole 30.
When air enters the filter cylinder 26 through the connecting pipe 3 and the air inlet 27, the filter element 29 further filters the air, and the air entering the filter cylinder 26 is further filtered by the filter element 29, discharged through the air outlet 28 and enters the carburetor body 1 through the air outlet pipe 5. The filtering core 29 can be replaced periodically to ensure the filtering effect, when the filtering core 29 is replaced, the filtering core 29 can be replaced by unscrewing the sealing cover 31, and the filtering core 29 is convenient to replace.
A knob 32 is fixedly mounted on the outer side of the sealing cover 31, so that the sealing cover 31 can be rotated conveniently.
A push plate 33 is movably installed in the filter cylinder 26 in the front and back direction, a second spring 34 is connected between the rear side of the push plate 33 and the side wall of the filter box 2, when the sealing cover 31 is screwed off to replace the filter element 29, the second spring 34 pushes the push plate 33 to move forward, and when the push plate 33 moves forward, the filter element 29 is pushed out of the round hole 30 in the forward direction, so that the filter element 29 can be taken out conveniently.
The filter box 2 is filled with soundproof cotton 35 for reducing noise when the carburetor body 1 is air-intake.
The foregoing shows and describes the general principles, essential features, and advantages of the 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 (8)
1. A carburetor with a novel filtering device is characterized in that: comprises a carburetor body and a filter box; the carburetor is characterized in that the filter box is provided with an inner cavity, a filter mechanism is arranged in the filter box, a dust removal mechanism is further arranged in the filter box, a connecting pipe is connected between the filter mechanism and the dust removal mechanism, an air inlet pipe communicated with the dust removal mechanism is fixedly mounted on the filter box, an air outlet pipe communicated with the filter mechanism is further fixedly mounted on the filter box, and an air outlet end of the air outlet pipe is connected with an air inlet end of the carburetor body.
2. A carburetor having a novel filter device, according to claim 1, wherein: the dust removal mechanism comprises a cylindrical dust removal barrel fixedly arranged in the filter box, the axis of the dust removal barrel extends forwards and backwards, and the front end and the rear end of the dust removal barrel are sealed by the inner wall of the filter box; an air inlet and an air outlet are arranged on the peripheral surface of the dust removing cylinder, the air inlet is connected with the air inlet pipe, and the air outlet is connected with the connecting pipe; a central shaft coaxial with the dust removal cylinder is rotatably mounted in the filter box, an annular filter screen is coaxially rotatably mounted on the central shaft through a support arm, the filter screen covers the air inlet and the air outlet, and a driving motor for driving the central shaft to rotate is fixedly mounted on the filter box; the lower side of the dust removing cylinder is also provided with a dust outlet, a brush is fixedly installed in the dust outlet, and the brush hair of the brush is in contact with the filter screen.
3. A carburetor having a novel filter device, according to claim 2, wherein: a cleaning opening positioned below the dust outlet is formed in the lower side wall of the filter box, and a pipeline is connected between the dust outlet and the cleaning opening; a dust collecting box with an opening at the upper end is arranged below the cleaning opening, a mounting groove matched with the upper end of the dust collecting box is arranged on the outer side of the lower side wall of the filter box, the cleaning opening is communicated with the mounting groove, and the dust collecting box is movably mounted in the mounting groove; and a locking mechanism is arranged between the dust collecting box and the mounting groove.
4. A carburetor having a novel filter device, according to claim 3, wherein: the locking mechanism comprises an installation cavity positioned in the lower side wall of the filter box, the installation cavity is provided with a through hole which extends towards the installation groove and is communicated with the installation groove, a locking pin is movably installed in the through hole, and the dust collection box is provided with a locking groove matched with the locking pin; a check block positioned in the mounting cavity is fixedly mounted on the locking pin, and a first spring is arranged between one side of the check block, which is far away from the locking pin, and the mounting cavity; the downside of dog still fixed mounting have the shifting block, the lower lateral wall of filter box with shifting block relevant position department is equipped with the rectangular hole, the shifting block is followed the rectangular hole is worn out extremely the outside of filter box can be followed the rectangular hole removes.
5. A carburetor having a novel filter device, according to claim 2, wherein: the filtering mechanism comprises a cylindrical filtering cylinder fixedly arranged in the filtering box, the axis of the filtering cylinder extends forwards and backwards, and the front end and the rear end of the filtering cylinder are sealed by the inner wall of the filtering box; an air inlet hole and an air outlet hole are arranged on the peripheral surface of the filter cylinder, the air inlet hole is connected with one end of the air inlet pipe, which is far away from the dust removing cylinder, and the air outlet hole is connected with the air outlet pipe; the filter cartridge is internally provided with a filter element, the filter element covers the air inlet and the air outlet, a round hole for replacing the filter element is arranged at the corresponding position of the front side wall of the filter cartridge and the filter cartridge, and a sealing cover is screwed in the round hole.
6. A carburettor having a novel filter arrangement as claimed in claim 6 wherein: and a rotating handle is fixedly arranged on the outer side of the sealing cover.
7. A carburettor having a novel filter arrangement as claimed in claim 6 wherein: the filter cartridge is characterized in that a push plate is movably mounted in the filter cartridge from front to back, and a second spring is connected between the rear side of the push plate and the side wall of the filter cartridge.
8. A carburetor having a novel filter device, according to claim 1, wherein: and sound insulation cotton is filled in the filter box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911313331.XA CN112983684A (en) | 2019-12-18 | 2019-12-18 | Carburetor with novel filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911313331.XA CN112983684A (en) | 2019-12-18 | 2019-12-18 | Carburetor with novel filtering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112983684A true CN112983684A (en) | 2021-06-18 |
Family
ID=76344337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911313331.XA Pending CN112983684A (en) | 2019-12-18 | 2019-12-18 | Carburetor with novel filtering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112983684A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201144743Y (en) * | 2008-01-17 | 2008-11-05 | 李和平 | Engine air cleaner |
| CN201625466U (en) * | 2009-11-25 | 2010-11-10 | 重庆建设摩托车股份有限公司 | Two-stage air filter |
| CN203050926U (en) * | 2012-12-26 | 2013-07-10 | 重庆华伟联龙科技有限公司 | Second filtering air filter |
| CN104279092A (en) * | 2013-07-04 | 2015-01-14 | 赛音 | Electric generator air filter and carburetor assembly |
| CN208032104U (en) * | 2017-11-22 | 2018-11-02 | 海宁市卫太生物科技有限公司 | A kind of efficient air filter |
| CN109364598A (en) * | 2018-12-13 | 2019-02-22 | 江苏菲达环保科技有限公司 | A kind of high efficiency dust pelletizing system |
-
2019
- 2019-12-18 CN CN201911313331.XA patent/CN112983684A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201144743Y (en) * | 2008-01-17 | 2008-11-05 | 李和平 | Engine air cleaner |
| CN201625466U (en) * | 2009-11-25 | 2010-11-10 | 重庆建设摩托车股份有限公司 | Two-stage air filter |
| CN203050926U (en) * | 2012-12-26 | 2013-07-10 | 重庆华伟联龙科技有限公司 | Second filtering air filter |
| CN104279092A (en) * | 2013-07-04 | 2015-01-14 | 赛音 | Electric generator air filter and carburetor assembly |
| CN208032104U (en) * | 2017-11-22 | 2018-11-02 | 海宁市卫太生物科技有限公司 | A kind of efficient air filter |
| CN109364598A (en) * | 2018-12-13 | 2019-02-22 | 江苏菲达环保科技有限公司 | A kind of high efficiency dust pelletizing system |
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Application publication date: 20210618 |
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| RJ01 | Rejection of invention patent application after publication |