CN106823617A - A kind of filter medium bag, air cleaner and filter medium packet preparation method - Google Patents
A kind of filter medium bag, air cleaner and filter medium packet preparation method Download PDFInfo
- Publication number
- CN106823617A CN106823617A CN201710206311.7A CN201710206311A CN106823617A CN 106823617 A CN106823617 A CN 106823617A CN 201710206311 A CN201710206311 A CN 201710206311A CN 106823617 A CN106823617 A CN 106823617A
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- Prior art keywords
- filter medium
- channel
- layer
- folding
- foldable layer
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Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000010410 layer Substances 0.000 claims description 93
- 239000000463 material Substances 0.000 claims description 36
- 238000001914 filtration Methods 0.000 claims description 15
- 239000003292 glue Substances 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 4
- 239000012790 adhesive layer Substances 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 11
- 238000007789 sealing Methods 0.000 abstract description 8
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 206010009192 Circulatory collapse Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
- B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
- B01D46/525—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material which comprises flutes
- B01D46/526—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material which comprises flutes in stacked arrangement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
Abstract
The present invention relates to air filter unit technical field, more particularly to a kind of filter medium bag, air cleaner and filter medium packet preparation method.Filter medium bag includes multiple folding dielectric layers, and folding dielectric layer includes fluted sheet, and fluted sheet is folded by folding part and is divided into upper foldable layer and lower foldable layer, and fin is respectively equipped with upper foldable layer and lower foldable layer；The fin of the fin of upper foldable layer and lower foldable layer is mutually butted to form first passage, adjacent two surround second channel between folding dielectric layer, one end sealing of second channel, is connected between two folding dielectric layers between upper foldable layer and lower foldable layer and adjacent by being bonded wire rod.A kind of filter medium bag that the present invention is provided, both the use of raw material had been reduced, cost is relatively low, and increased the area of inlet or outlet channel, eliminate the space of surficial sheets occupancy, utilization to space is more reasonable, on the premise of product filter effect is ensured, can make that it is more minimized or performance is more preferable.
Description
Technical field
The present invention relates to air filter unit technical field, more particularly to a kind of filter medium bag, air cleaner and mistake
Filter medium packet preparation method.
Background technology
With the continuous reinforcement and the continuous application of high-powered engine of engine exhaust regulation, it is to gas handling system air inlet
The requirement of amount is gradually increased, while the space that enging cabin leaves air cleaner for is less and less.On the premise of reduced space,
Performance can not be reduced and even require lifting, and this requires the filter for needing developmental research new, with the smaller space of application.
At present, conventional single flow air filter and its filter core, its media base bag include fluted sheet and surface patch
The connected mode of the single material of material two panels, fluted sheet and surficial sheets is to be applied on surficial sheets with several sections of glue, then and
Fluted sheet is bonded, or the groove top of fluted sheet is applied to PUR, then bonds with surficial sheets, groove
Inlet channel is formed between line sheet material and surficial sheets, carrying out sealing to inlet channel one end by PUR forms monolithic medium
Layer, monolithic dielectric layer basis of formation filter medium bag by way of winding or being laminated.
Monolithic dielectric layer needs a fluted sheet and a surficial sheets separately formed, is then bonded together, it is necessary to use glue
Seal at one end, this kind of structure waste of materials is relatively costly, and channel cross-sectional flow area is smaller.Simultaneously as surficial sheets conduct
Supporting layer, prevents the side of the single groove of fluted sheet from staying, so must be plane sheets or perpendicular to fluted sheet
Fluted sheet, when actually used, surficial sheets occupy certain space, and then cause space availability ratio relatively low, and surface
Sheet material is larger with fluted sheet contact surface, reduces the effective filtration area of material, and the use of end face seal glue also causes effectively
Filter area is reduced, so as to reduce the availability of filter material.
The content of the invention
It is an object of the invention to propose a kind of filter medium bag, air cleaner and filter medium packet preparation method, with
Waste of materials present in prior art is solved, channel cross-sectional flow area is smaller, and the relatively low technology of space, filter material utilization rate is asked
Topic.
It is that, up to this purpose, the present invention uses following technical scheme：
A kind of filter medium bag, including multiple folding dielectric layers, the folding dielectric layer include what is be made up of filtering material
Fluted sheet, the fluted sheet is provided with folding part along groove length vertical direction, and the fluted sheet is folded by the folding part and divided
For upper foldable layer and lower foldable layer, fin is respectively equipped with the upper foldable layer and the lower foldable layer；
The fin of the fin of the upper foldable layer and the lower foldable layer is mutually butted to form first passage, adjacent two
Second channel is surrounded between the folding dielectric layer, the second channel is sealed away from one end of folding part, the upper foldable layer
Connected by being bonded wire rod between two folding dielectric layers between the lower foldable layer and adjacent, the bonding
Wire rod is provided with adhesive layer.
Further, the bonding wire rod horizontally set, the bonding wire rod is laterally arranged in the first passage and institute
State in second channel, the setting direction of the bonding wire rod is mutual with the length direction of the first passage and the second channel
Vertically.
Further, many bonding wire rods are provided with the first passage and the second channel, many described viscous
Wiring material be arranged in parallel.
Further, the folding part includes the crimped of indent, and the crimped fin along the upper foldable layer is extremely
The fin direction of the lower foldable layer is set.
Further, one end of the second channel is sealed by bonded adhesives.
Further, the stacking of multiple folding dielectric layers or winding are set.
The present invention also provides a kind of air cleaner, including above-mentioned filter medium bag.
The present invention also provides a kind of filter medium packet preparation method, comprises the following steps：
Fold medium formable layer：By fluted filter material plate with any in groove length vertical direction for break pair
Folding, by two pairs of fold bonding connections, is folded to form one end block between the groove of filter material plate, the other end is that first for being open is led to
Road；
Medium wrap molding：Multiple folds medium laminated adduction bonding connection, and second is formed between adjacent folding dielectric layer
Passage, one end of second channel is blocked.
Further, the bonding connection is across being arranged on first passage and second channel by the wire rod with adhesive glue
It is interior, and then by filter material plate to fold and adjacent folding dielectric layer bonding connection.
A kind of filter medium bag that the present invention is provided, can be passed through to be filtered when using, in first passage or second channel
Air (dirty air), is first end face with the one end for setting folding part after filter medium wrap molding, and the one end away from folding part is
Second end face.Wherein, dirty air enters into first passage from the first end face of medium bag, and the dirty air in first passage is along gas
The flowing of stream direction, in flow process can by the folding part of second end face, folding part from as filtering material, therefore, folding part
Can reach the effect of filtering.Dirty air into first passage can enter second channel through fluted sheet up or down simultaneously,
And then the effect of filtering is reached, then clean air flows out along second channel.Same dirty air can be from the of medium bag
Biend enters into second channel, and the dirty air in second channel flows along airflow direction, untill encountering fluid sealant, now
Dirty air can upwards pass downwardly through fluted sheet, into first passage, and then reach the effect of filtering, then clean air along
First passage flows out.Meanwhile, dirty air, into first passage, can reach filtering in second end face directly by folding part
Effect.
The filter medium bag, without being sealed to all passages, only needs one end of second channel to seal, Er Qiewu
Surficial sheets need to be used, by being bonded wire rod can bonding of the completion to fluted sheet and support, both reduced the use of raw material,
Cost is relatively low, and increased the area of inlet or outlet channel, meanwhile, the space of surficial sheets occupancy is eliminated, to space
Using more rationally, the limit is also reached in the utilization rate of filter material, so overall structure is before product filter effect is ensured
Put, can make that it is more minimized or performance is more excellent.
A kind of air cleaner that the present invention is provided, the air cleaner by using above-mentioned filter medium bag, by will
It is smaller that the size of filter medium bag is set, and is capable of achieving the miniaturization of air cleaner.
A kind of filter medium packet preparation method that the present invention is provided, can prepare that above-mentioned cost is lower, air inlet by the method
Or outlet passageway area is bigger, and the more rational filter medium bag of space utilization.
Brief description of the drawings
Fig. 1 is the front view of the filter medium bag that the present invention is provided；
Fig. 2 is the structural representation of the one end for the filter medium bag that the present invention is provided；
Fig. 3 is the structural representation of the other end of the filter medium bag that the present invention is provided；
Fig. 4 is the structural representation of the laminated arrangement of the filter medium bag that the present invention is provided；
Fig. 5 is the partial enlarged drawing of Fig. 4；
Fig. 6 is the structural representation of the reeling condition of the filter medium bag that the present invention is provided；
Fig. 7 is the partial enlarged drawing of Fig. 6；
Fig. 8 is the FB(flow block) of the filter medium packet preparation method that the present invention is provided.
In figure：
1st, dielectric layer is folded；2nd, first passage；3rd, second channel；4th, it is bonded wire rod；11st, upper foldable layer；12nd, lower folding
Layer；13rd, folding part；14th, it is crimped.
Specific embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by specific embodiment.
As shown in figures 1-8, a kind of filter medium bag, including multiple folding dielectric layers 1, folding dielectric layer 1 is included by filtering
The fluted sheet that material is made, fluted sheet is provided with folding part 13 along groove length vertical direction, and fluted sheet is folded by folding part 13
It is divided into foldable layer 11 and lower foldable layer 12, fin is respectively equipped with upper foldable layer 11 and lower foldable layer 12；It should be appreciated that fin
Can be together, it is possibility to have multiple tracks, so as to form polygonal groove.Fin is usually pinnacle but it is also possible to be arc-shaped
Form.The shape of fin and two sides composition can be triangle, bowl-type, polygon, even toward the wave of one side skew
Shape.The shape of fin and groove both sides composition can be symmetrical, or asymmetric.
The fin of the fin of upper foldable layer 11 and lower foldable layer 12 is mutually butted to form first passage 2, two adjacent foldings
Second channel 3 is surrounded between folded dielectric layer 1, second channel 3 is sealed away from one end of folding part 13, and the phase for being formed is docked by fin
It is not to completely enclose between adjacent groove, air-flow, so as to lift channel airflow by property, can reduce flow resistance with intercommunication.Upper folding
Between lamination 11 and lower foldable layer 12 and adjacent two are connected between folding dielectric layer 1 by being bonded wire rod 4, bonding wire
Material 4 is provided with adhesive layer.It should be appreciated that described wire rod can be circular wire rod, it is also possible to be planar as one fixed width
Wire rod.Wire rod can be single one, or webbed combination wire rod.
The bonding horizontally set of wire rod 4, bonding wire rod 4 is laterally arranged in first passage 2 and second channel 3, is bonded wire rod 4
Setting direction be mutually perpendicular to the length direction of first passage 2 and second channel 3.It is provided with first passage 2 and second channel 3
Many bonding wire rods 4, many bonding wire rods 4 be arranged in parallel.
The advantage of the filter medium bag is to fold dielectric layer 1 by fluted sheet folding forming, folds aftershaping first and leads to
Road 2, one end of first passage 2 is folding part 13, wherein, the block of folding part 13, can during air flow in one end of first passage 2
By air, the effect of filtering is reached, folding part 13 is the effect for serving closure, while again can be by air, first leads to
Without being sealed again in road 2, multiple is folded after dielectric layer 1 is superimposed and forms second channel 3, only in second channel 3
One end is sealed, and this kind of mode saves the use of encapsulant.
Meanwhile, it is by bonding between upper foldable layer 11 and lower foldable layer 12 and between adjacent folding dielectric layer 1
Wire rod 4 is attached, bonding wire rod 4 can by upper foldable layer 11 and lower foldable layer setting up and down 12, two fold dielectric layers 1 it
Between be bonded and supported, it is ensured that relative displacement will not be produced between layers, the top for also supporting groove will not be absorbed in down
In the groove of layer.Will surficial sheets of the prior art be replaced by the wire rod with cementability.Both making for material had been saved
With, meanwhile, the space that original sheet material takes is also eliminated, beneficial to the miniaturization treatment of filter medium bag.Further, since reducing
Fluted sheet and surficial sheets contact point, have been obviously improved filter material effective filtration area, so as to improve the performance of filtering.Should
Work as understanding, in some cases, between upper foldable layer 11 and lower foldable layer 12, can be supported without wire rod, directly use
Adhesive glue carries out adhesion in fin joint portion, is formed and folds dielectric layer 1.
Folding part 13 include crimped 14, crimped the 14 of indent along the fin of upper foldable layer 11 to the fin side of lower foldable layer 12
To setting.
The method of crimped 14 concrete operations is：When the fluted sheet of full wafer is folded along a line (center line) of length vertical direction
Afterwards, by relative to two fins between inwardly swaging is into crimped 14, the area at crimped 14 is consistent with the respective area before folding,
The drawing of filter paper is not produced, so as to ensure that the strainability of filter material.Crimped 14 pairs upper foldable layers 11 and lower foldable layer 12 have
Certain support effect, beneficial to the holding of the shape of first passage 2.It should be appreciated that folding part can also use in some cases
Filter material fin is inclined toward one side, and is molded by crimped mode stacked together is compressed.
Preferably, one end of second channel 3 is sealed by bonded adhesives.It is such as multiple to fold after multiple folds the superposition of dielectric layer 1
Dielectric layer 1 is laminated or winds setting, and second channel 3 is molded between adjacent folding dielectric layer 1, is carried out by using bonded adhesives close
Envelope, while sealing effectiveness is reached, has preferable connection effect to folding dielectric layer 1.Equally, sealing means herein
Can be sealed by the way of filter material be collapsed is welded with a small amount of fluid sealant or using filter material simultaneously.Hole such as former rhombus passes through
Be collapseds to 4 sides form the seals of cross, or stacking be collapsed forms sealing, can so increase entrance or outlet
Hole area.
Medium bag forms staggeredly close up and down by the fluid sealant of folding part 13 and the one end of second channel 3 in both ends of the surface
Envelope, when using, dirty air can be by the entrance medium bag of first passage 2, by after fluted sheet filtering, from second channel 3
Leave medium bag.Equally, dirty air can also enter medium bag by second channel 3, by after fluted sheet filtering, from first
Passage 2 leaves medium bag.So this medium bag can determine the direction into outlet according to actually used demand.
The present invention also provides a kind of air cleaner, including above-mentioned filter medium bag.
By using above-mentioned filter medium bag, the cost of the air cleaner is lower, meanwhile, before filter effect is ensured
Put, the further space reduced shared by air cleaner assembly, more conducively vehicle minimize the arrangement in space.
As shown in figure 8, the present invention also provides a kind of filter medium packet preparation method, comprise the following steps：
Dielectric layer 1 is folded to be molded：By fluted filter material plate with any in groove length vertical direction for break pair
Folding, by two pairs of fold bonding connections, is folded to form one end block between the groove of filter material plate, the other end is the first passage of opening
2；
Medium wrap molding：Multiple folds the superposition of dielectric layers 1 and bonding connection, and the is formed between adjacent folding dielectric layer 1
Two passages 3, one end of second channel 3 is blocked.
Bonding connection is across being arranged in first passage 2 and second channel 3, and then by filter material by the wire rod with adhesive glue
Plate to fold and the adjacent bonding connection of folding dielectric layer 1.
Above-mentioned filter medium bag can obtain by the preparation method, specifically, by one block of filter material plate of rectangle along its groove
The center line doubling of the length vertical direction of line, fold position is folding part 13, and filter material plate is folded into upper folding symmetrical above and below
The groove of layer 11 and lower foldable layer 12, upper foldable layer 11 and lower foldable layer 12 is symmetrical arranged the first passage 2 to form rhombus.It
Afterwards, crimped 14 operation is carried out to folding part 13, inside swaging is into crimped 14 between two vertically symmetrical fins.In upper folding
Laterally (length direction with groove is relative) is uniformly arranged multiple bonding wire rods 4, upper foldable layer between layer 11 and lower foldable layer 12
11 and lower foldable layer 12 on fin be bonded in respectively bonding wire rod 4, now, complete fold dielectric layer 1 preparation.
Multiple is folded into dielectric layer 1 and is superimposed forming filter medium bag, by taking stacking as an example, in two adjacent folding dielectric layers
Setting bonding wire rod 4 between 1, wherein, bonding wire rod 4 is arranged on the fin for folding dielectric layer 1, two folded dielectric layers it is convex
Rib is bonded on bonding wire rod 4 respectively, and two fins of folding dielectric layer 1 can be symmetrically or non-symmetrically to set.And then two
Second channel 3 is surrounded between folding dielectric layer 1, one end away from folding part 13 of second channel 3 carries out block.
It is oppositely arranged that (folding part 13 is in filter medium bag with the sealing of the folding part 13 of first passage 2 and second channel 3
One end, second channel 3 is sealed away from one end of folding part 13) as a example by, at first passage 2, dirty air first passes through folding part 13,
Air is filtered, and the air after filtering continues to be flowed along first passage 2, is finally sent；At second channel 3, dirty air stream
Enter in second channel 3, until flowing at sealing, air can not continue flowing at the interior sealing of second channel 3, can only be upward
Or filter material plate is passed downwardly through, air is filtered, and continues flowing with air-flow after being flow in first passage 2 by filtered air, most
It is sent eventually.
Know-why of the invention is described above in association with specific embodiment.These descriptions are intended merely to explain of the invention
Principle, and can not by any way be construed to limiting the scope of the invention.Based on explanation herein, the technology of this area
Personnel associate other specific embodiments of the invention by would not require any inventive effort, these modes fall within
Within protection scope of the present invention.
Claims (9)
1. a kind of filter medium bag, it is characterised in that fold dielectric layer (1) including multiple, folding dielectric layer (1) including by
The fluted sheet that filtering material is made, the fluted sheet is provided with folding part (13) along groove length vertical direction, and the fluted sheet leads to
Cross the folding part (13) and fold and be divided into foldable layer (11) and lower foldable layer (12), the upper foldable layer (11) and the lower folding
Lamination is respectively equipped with fin on (12)；
The fin of the upper foldable layer (11) and the fin of the lower foldable layer (12) are mutually butted to form first passage (2), phase
Second channel (3) is surrounded between two adjacent foldings dielectric layer (1), the second channel (3) is away from folding part (13)
One end seals, two folding dielectric layers between the upper foldable layer (11) and the lower foldable layer (12) and adjacent
(1) connected by being bonded wire rod (4) between, bonding wire rod (4) is provided with adhesive layer.
2. filter medium bag according to claim 1, it is characterised in that bonding wire rod (4) horizontally set, it is described viscous
Wiring material (4) is laterally arranged in the first passage (2) and the second channel (3), the setting side of bonding wire rod (4)
It is mutually perpendicular to the length direction with the first passage (2) and the second channel (3).
3. filter medium bag according to claim 2, it is characterised in that the first passage (2) and the second channel
(3) many bondings wire rod (4) are provided with, many bondings wire rod (4) be arranged in parallel.
4. filter medium bag according to claim 1, it is characterised in that the folding part (13) is including the crimped of indent
(14), crimped (14) along the fin of the upper foldable layer (11) to the fin direction of the lower foldable layer (12)
Set.
5. filter medium bag according to claim 1, it is characterised in that one end of the second channel (3) is by bonding
Glue is sealed.
6. filter medium bag according to claim 1, it is characterised in that multiple folding dielectric layers (1) stackings are rolled up
Around setting.
7. a kind of air cleaner, it is characterised in that including the filter medium bag as described in claim any one of 1-6.
8. a kind of filter medium packet preparation method, it is characterised in that comprise the following steps：
Fold medium formable layer：By fluted filter material plate with any in groove length vertical direction for break doubling, will
Two pairs of fold bonding connections, are folded to form one end block between the groove of filter material plate, the other end is the first passage of opening；
Medium wrap molding：Multiple folds medium laminated adduction bonding connection, and second channel is formed between adjacent folding dielectric layer,
One end of second channel is blocked.
9. filter medium packet preparation method according to claim 8, it is characterised in that the bonding connection is to bond band
The wire rod of glue across being arranged in first passage and second channel, and then by filter material plate to fold and adjacent folding medium
Layer bonding connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710206311.7A CN106823617A (en) | 2017-03-31 | 2017-03-31 | A kind of filter medium bag, air cleaner and filter medium packet preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710206311.7A CN106823617A (en) | 2017-03-31 | 2017-03-31 | A kind of filter medium bag, air cleaner and filter medium packet preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106823617A true CN106823617A (en) | 2017-06-13 |
Family
ID=59142429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710206311.7A Pending CN106823617A (en) | 2017-03-31 | 2017-03-31 | A kind of filter medium bag, air cleaner and filter medium packet preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106823617A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803064A (en) * | 2017-10-27 | 2018-03-16 | 浙江纳风净化技术有限公司 | A kind of cellular filter core and preparation method thereof |
| CN109395472A (en) * | 2018-10-26 | 2019-03-01 | 无锡风正科技有限公司 | A kind of no tree lace air purifying filter mesh |
| CN115400518A (en) * | 2017-09-25 | 2022-11-29 | 唐纳森公司 | Filter assembly |
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| CN1623636A (en) * | 2004-10-26 | 2005-06-08 | 贡有成 | Folding tubing film and filter formed by said tubing film |
| US20050284117A1 (en) * | 2003-12-03 | 2005-12-29 | Helmut Swars | Particle filter |
| CN101385933A (en) * | 2008-10-09 | 2009-03-18 | 江苏华强电力设备有限公司 | Large air quantity box type filter |
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| CN205626771U (en) * | 2016-04-26 | 2016-10-12 | 浙江东安消防装备技术有限公司 | Sandwich structure's filtration formula fire control self -rescuer filter paper layer structure |
| CN206604321U (en) * | 2017-03-31 | 2017-11-03 | 盛春莉 | A kind of filter medium bag and air cleaner |
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| US6669913B1 (en) * | 2000-03-09 | 2003-12-30 | Fleetguard, Inc. | Combination catalytic converter and filter |
| US20050284117A1 (en) * | 2003-12-03 | 2005-12-29 | Helmut Swars | Particle filter |
| CN1623636A (en) * | 2004-10-26 | 2005-06-08 | 贡有成 | Folding tubing film and filter formed by said tubing film |
| CN101952008A (en) * | 2008-01-22 | 2011-01-19 | 戈尔企业控股股份有限公司 | Folding recirculating filter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115400518A (en) * | 2017-09-25 | 2022-11-29 | 唐纳森公司 | Filter assembly |
| CN115400518B (en) * | 2017-09-25 | 2024-03-26 | 唐纳森公司 | Filter assembly |
| CN107803064A (en) * | 2017-10-27 | 2018-03-16 | 浙江纳风净化技术有限公司 | A kind of cellular filter core and preparation method thereof |
| CN109395472A (en) * | 2018-10-26 | 2019-03-01 | 无锡风正科技有限公司 | A kind of no tree lace air purifying filter mesh |
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Effective date of registration: 20180326 Address after: No. 3595 Yanggao North Road, Pudong New Area, Shanghai Applicant after: SHANGHAI FLEETGUARD FILTER Co.,Ltd. Applicant after: Yuan Jianjun Address before: 201204 Pudong New Area, Pudong New Area flower and Wood Road, Room 302, room 111, Room 302 Applicant before: Sheng Chunli |
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