CN104667669B - Inner cavity filter and filter assemblies - Google Patents

Inner cavity filter and filter assemblies Download PDF

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Publication number
CN104667669B
CN104667669B CN201410689516.1A CN201410689516A CN104667669B CN 104667669 B CN104667669 B CN 104667669B CN 201410689516 A CN201410689516 A CN 201410689516A CN 104667669 B CN104667669 B CN 104667669B
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China
Prior art keywords
filter
inner cavity
fold
filtering
bending
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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CN201410689516.1A
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Chinese (zh)
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CN104667669A (en
Inventor
M.本克
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mann and Hummel GmbH
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Mann and Hummel GmbH
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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
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • 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
    • B01D46/0002—Casings; Housings; Frame constructions
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00—Other air-treating devices
    • B60H3/06—Filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
    • F24F8/158—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using active carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/20—Shape of filtering material
    • B01D2275/203—Shapes flexible in their geometry, e.g. bendable, adjustable to a certain size
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28—Arrangement or mounting of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filtering Materials (AREA)

Abstract

The present invention relates to a kind of inner cavity filter and filter assemblies, inner cavity filter (2) is with the filter medium (4) folded and the filtering fold (11 for being arranged in filter medium (4), 12) the side band (6 flexible on fold profile (5), 7), wherein, inner cavity filter (2) is in side band (6,7) fold (11 can be filtered around being parallel in the case where bending intercept (15) deformation, 12) axis (17) bending of folding seamed edge (10,13) arrangement.

Description

Inner cavity filter and filter assemblies
Technical field
The present invention relates to a kind of filter assemblies, particularly for filter vehicle or building inner space air inner cavity Filter (Innenraumfilter).In addition, the present invention relates to a kind of with such filter element and filter receiving portion Filter assemblies.
Although can operate with arbitrary filter element and component, this is illustrated next for the inner cavity filter of motor vehicle The problem of inventing and being based on its.
Background technique
The increased air pollution that is associated especially in big city with the use of modern air conditioning equipment makes to need by means of closing Suitable filter cleaning is by the inner cavity for directing into motor vehicle from outside and being prepared or adjusting air.Consider thus for example Particulate filter, adour filter or its mutual combination should be filtered out as well as possible or be absorbed outstanding comprising in the environment Floating object, particle and smell.
In order to filter the air of the inner cavity for motor vehicle, usually using filtering material, such as mistake folding or wrinkle Non-woven fleece is filtered, is formed folding bag (Faltenpack).Make the filtering material (Filtermaterialbogen) of originally planar Fold to zigzag.Folding bag is kept by side band (Seitenband) and headband or other frames.Such filter element energy It is enough to be removably fixed in filter receiving portion.Therefore the mountable air-conditioning in corresponding vehicle of filter assemblies is formed by set In standby.
20 2,004 000 029 U1 of file DE illustrates a kind of filter core with flexible side band.Thus may be used It is bent filter core.
Summary of the invention
Under the background, it is an object of that present invention to provide a kind of improved filter elements.
The purpose passes through a kind of filter medium with folding and the filtering fold for being arranged in filter medium (Filterfalte) filter element of the side band flexible on fold profile (Faltenprofil) is realized, wherein inner cavity Filter can be around the folding for being parallel to filtering fold in the case where the deformation of the bending intercept (Biegeabschnitt) of side band The axis bending of seamed edge (Faltkante) arrangement.
Because filter element includes bending intercept, it is flexible and therefore in the region of bending intercept that filter element limits ground Geometrical boundary condition can be matched.Correspondingly, filter associated with filter element can be freely designed in size and geometry Receiving portion.This is especially advantageous in the case where restrictively there is structure space, for example in the enging cabin of motor vehicle.
Side band preferably has constant height, is preferably higher than crimp height.Side band additionally can non-incision it is next Construction.
Side band preferably has the thickness and/or 150-350 g/m of 1-5 mm2Weight per unit area.The height of side band Preferably more than 15 mm, further preferably it is greater than 20 mm and is still further preferably greater than 25 mm.
Filter element includes filter medium and one or more reinforced elements, two outstanding side band and/or two headbands, At least intensive filtration medium paragraph by paragraph, especially to maintain its shape in filter operation.Preferably, each side band has curved Bent intercept.Reinforced element especially can also material integrally construct closed or open frame, surround filter medium.According to This applicable definition, frame include one or more reinforced elements.For example, side band and/or headband are non-woven fleece bands (Vliesband)。
Reinforced element can be connected in the engagement of edge side material with filter medium, is especially be bonded.In this regard, reinforced element can It is heated and filter medium can be pressed into the material being heated.Alternatively, reinforced element can be by spray into filter medium.This Outside, adhesive can be used as additional filler (Zusatzwerkstoff).Reinforced element itself can be by material identical with filter medium It is made.Alternatively, reinforced element can be configured to injection moulded component.Here, elastomeric material, for example thermoplastic for example can be used Polyurethane.
The filter medium of folding collapsibly or waveform construct.As for example known zigzag of fold or W-shaped pleat Wrinkle.Filter medium can be stamped and then shrilly fold at coining seamed edge.The filtration of material of planar can be used as raw material, It is correspondingly formed.Filter medium is, for example, filtration fabrics, filter layer (Filtergelege) or filtering non-woven object.Filtering is situated between Matter can especially be manufactured with meltblown technique.Filter medium can have natural fiber, such as cotton fiber or staple fibre, such as by gathering Ester, poly- ethylene sulfite (Polyvinylsulfit), polytetrafluoroethylene (PTFE) are constituted.Fiber can be in processing in machining side Upwards, it favours and/or is oriented transverse to the direction.Filter medium especially multilayer.For example, filter medium can have two A carbon fiber filter layer and the dust filter layer being arranged between carbon fiber filter layer.
Corresponding filter element is for filtering fluid, i.e., gaseous and/or liquid medium, such as air.Gaseous Jie Matter or air further include gas-or air-solid mixture or gas-or air-liquid mixture here.Air-conditioning equipment example Can such as have filter element.Filter element can have sealing device, associated with filter element will not filter side relative to It purifies side seal.Sealing device can with one or more reinforced element identical components of filter element construct.Alternatively, Sealing device can be configured to additional member.Thus sealing device it is for example mountable filter medium, one or more reinforced element, At filter element or filter receiving portion.
Filter element is in particular for filter vehicle, especially passenger car (PKW) or truck (LKW) or building The inner cavity filter of the air of inner space.
In form of implementation, filter medium has first with the first crimp height to filter fold and has the second fold At least one second filtering fold of height, wherein less than the first crimp height, and wherein, bending is cut the second crimp height Section includes at least one second filtering fold.Thus do not change when filter element is bent filtering fold fold to each other away from From.The filter capacity of filter element is not therefore by the Bending Influence of filter element.
First crimp height is preferably more than 15 mm, is further preferably greater than 20 mm, is still further preferably greater than 25mm.In extreme case, the second crimp height can be 0 mm, which means that being provided only with planar as the second filtering fold Filter medium intercept.2 to 5 times, preferably 2.5 to 4.5 times of first crimp height especially the second crimp height, further Preferably 3 to 4 times, it is further preferably 3.5 to 4 times, further preferably just 4 times so big.Filter element can surround it Curved axis is preferably parallel to the folding seamed edge of at least one second filtering fold and/or is parallel to the first filtering fold Folding seamed edge arrangement.Preferably, filter element can only surround the axis bending on bending direction.Filter element can as a result, After a deformation with the geometry of arching.In alternative form of implementation, filter element can be different, outstanding at two simultaneously It is bent on its opposite bending direction.
In other form of implementation, bending intercept be set up to filter element bending when on the direction of filter medium to Interior deformation.It is especially applied with adhesive, especially hotmelt at the band of side in inside, only allows to be bent intercept and inwardly becomes Shape.Thus ensure to be bent intercept always to be only deformed inward.
In other form of implementation, bending intercept is set up to when being related to inner cavity filter on the direction of filter medium (schlaufenartig) deformation of inside snap ring type ground.In particular, it is being bent the direction that filter medium is formed in when intercept deformation On the winding (Schleife) or retaining ring (Schlaufe) that inwardly stretch out.
In other form of implementation, bending intercept filter element be bent when can sandwich two first filtering folds it Between.It therefore ensures that, the folding seamed edge adjacent to the first filtering fold of bending intercept arrangement does not contact, and does not thus damage filtering element The strainability of part.
In other form of implementation, the bending intercept that can be sandwiched between the two first filtering folds is limited to the two Fold distance between first filtering fold.Especially the winding or retaining ring that are formed by bending intercept are sandwiched and filter fold first Between.
In other form of implementation, which is arranged between two first filtering folds. In particular, only make at least one second filtering Folding Deformation other than the band of side when filter element is bent.It therefore ensures that, the The geometry of one filtering fold is remained unchanged when filter element is bent.
In other form of implementation, there are two be bent intercept for side belt.Filter element is flexible at C-shaped as a result,.Side band There can be any number of bending intercept.The axis that especially may be provided with number corresponding with the bending number of intercept, crosses filtering element Part can surround these axis bendings.
Furthermore a kind of filtering of filter receiving portion with such filter element and for accommodating filter element is proposed Component.
In other form of implementation, multiple curved inner cavity filters, which can be arranged in column corresponding filter, to be held It receives in portion.For example, the curved inner cavity filter of six C-shapeds may be disposed to closed cylinder.
Filter assemblies are correspondingly applied to for feature illustrated by filter element and vice versa.
It is of the invention it is other it is possible carry into execution a plan further include before or below in relation to feature illustrated by embodiment or The combination of method and step being not expressly mentioned.Here, expert also will the single aspect of addition as to it is of the invention it is corresponding substantially The improvement or supplement of form.
Detailed description of the invention
Other design scheme of the invention is the content of following embodiment described.In addition, being joined according to embodiment The present invention is elaborated according to attached drawing.
Wherein:
Fig. 1 shows the perspective schematic view of an embodiment of the filter assemblies with inner cavity filter；
Fig. 2 shows the schematic side elevation of the inner cavity filter according to Fig. 1；
Fig. 3 shows another schematic side elevation of the inner cavity filter according to Fig. 1；And
Fig. 4 shows the perspective schematic view of the inner cavity filter according to Fig. 1.
Specific embodiment
Fig. 1 shows the implementation for applying the filter assemblies 1 with inner cavity filter 2 in vehicle or building The perspective schematic view of example.Other than inner cavity filter 2, furthermore filter assemblies 1 have filter receiving portion 3, are set up to Accommodate inner cavity filter 2.Filter receiving portion 3 be, for example, box-like and there is filter receiving portion main body and filter to accommodate Portion's lid is set up to enclosed filters receiving portion main body.Inner cavity filter 2 can using unshowned sealing device Fluid Sealing It is sealed relative to filter receiving portion 3.
Inner cavity filter 2 includes the filter medium 4 being made of the filtering material preferably folded.Filtering material preferably has There are multiple layers.Filtering material can especially have there are two active carbon layer, be disposed with dust filter layer between them.Filtering material can With non-woven fleece etc..
Filter medium 4 preferably folds toothing.In the folding profile 5 (Fig. 2, Fig. 3) of filter medium 4, Fig. 1's There is side band 6 in installed in front at the longitudinal side of filter medium 4 respectively in orientation and other side band 7 is installed in back side.Herein may be used Bonding is realized using such as hotmelt or other suitable adhesives.By side band 6,7, inner cavity filter 2 is obtained centainly Lateral stability.
Furthermore in order to obtain the closing and reinforcing at the end side of filter medium 4, headband 8,9 is mounted on filter medium 4 Corresponding terminal fold at.Headband 8,9 preferably has L-shaped profile.L-shaped long side leg is respectively formed filter medium 4 herein Closing, and L-shaped short side leg is respectively placed in above filter medium 4 in the orientation of Fig. 1 on filter medium 4.
Two side bands 6,7 with headband 8,9 can surround filter medium 4 in the form of frame.Side band 6,7 and headband 8, 9 can for example be made of non-woven material.Side band 6,7 is especially flexible and deformable.Side band 6,7 and headband 8,9 can materials Integrally implement.Side band 6,7 and headband 8,9, which can be adhered, to be fused at filter medium 4, with it or is arrived with Shooting Technique spray At it.
The folding seamed edge 10 of filter medium 4 is shown in FIG. 1, only one therein is equipped with appended drawing reference.In inner cavity mistake In the operation of filter 2, fluid, especially air L do not filter side RO perpendicular to the planar of filter medium 4 from inner cavity filter 2 Extension passes through filter medium 4 and flow to its purification side RE.The percolation of filter medium 4 can also be realized in the opposite direction.Usually The filtering material and geometry for making filter medium 4 or inner cavity filter 2 match with preset percolation direction.
As shown in Fig. 2, the filter medium 4 folded, which has, has the first crimp height h11First filtering fold 11.In Fig. 2 In, only three first filtering folds 11 are equipped with appended drawing reference.First filtering fold 11, which has, folds seamed edge 10.The filtering of folding is situated between Furthermore matter 4 has has the second crimp height h12At least one second filtering fold 12.
Herein as shown in FIG. 2, the first crimp height h11It is defined as 11 two foldings relative to each other of the first filtering fold The folded distance of seamed edge 10 to each other.Second crimp height h12The folding seamed edge 13 and inner cavity for being defined as the second filtering fold 12 filter The distance of the lower seamed edge 14 of device 2.First crimp height h11Furthermore corresponding to the lower seamed edge 14 from inner cavity filter 2 to folding seamed edge 10 distance.At least one second filtering fold 12 is arranged between two first filtering folds 11.Inner cavity filter 2 is preferred Ground has two multiple, outstanding second filtering fold 12, they are arranged preferably spaced apartly.
Second crimp height h12Preferably less than the first crimp height h11.First crimp height h11Especially the second fold Height h12It is 4 times so big.Second crimp height h12For example, 15 to 20 mm.
As shown in figs. 1 and 3, inner cavity filter 2 it is deformable, it is especially flexible, can turn down or foldable.Fig. 1 and 3 is shown Inner cavity filter 2 in deformation or curved state, and Fig. 2 and 4 is shown in original state or unbent state Inner cavity filter 2.
In this regard, inner cavity filter 2 has at least one bending intercept 15.Especially each side band 6,7 has at least one curved Bent intercept 15.At least one bending intercept 15 has at least one second filtering fold 12.Inner cavity filter 2 side band 6, 7 can surround in bending intercept 15 of at least one the second filtering fold 12 including this is parallel at least one second filtering pleat The axis 17 that seamed edge 13 is arranged that folds of wrinkle 12 is bent.Axis 17 can be parallel to folding seamed edge 13 and/or be parallel to folding seamed edge 10 arrangements.For example, the extension of axis 17 is by folding seamed edge 13.Preferably, inner cavity filter 2 has at least two bending intercepts 15.Each bending intercept 15 can be associated with axis 17.
As shown in figure 3, inner cavity filter 2 is in only one bending direction B1On can around axis 17 be bent.It is alternative, In the form of implementation being not shown in the accompanying drawings, inner cavity filter 2 can be made curved on two different, especially opposite bending directions It is bent.In the form of implementation shown in Fig. 1 to 4 of inner cavity filter 2 (intercept is bent there are two the tools of inner cavity filter 2 wherein 15) in, inner cavity filter 2 is especially flexible at C-shaped.
Bending intercept 15 is set up to be deformed inward on the direction of filter medium 4 when inner cavity filter 2 is bent or is deformed. When in inner cavity, filter 2 is bent, bending intercept 15 can be sandwiched between two first filtering folds 11.In bending intercept 15 in mistake When being deformed inward on the direction of filter medium 4, bending intercept 15 is preferably deformed to retaining ring or winding formula.Retaining ring is formed herein or is returned Ring 16 sandwiches between two adjacent first filtering folds 11.It sandwiches curved between the two the first filtering folds 11 Bent intercept 15, especially winding 16 are limited to the fold distance a between the two first filtering folds 11.Intercept is bent by setting 15, the fold distance between the first filtering fold 11 does not change when inner cavity filter 2 is bent.
Multiple such curved inner cavity filters 2 of C-shaped preferably can cylindricality be arranged in corresponding cylindrical filter and accommodate In portion's (not shown).For example, six inner cavity filters 2 may be disposed to closed cylinder.
Although front illustrates the present invention according to specific embodiment, it is not limited to these embodiments but can carries out each Kind modification.

Claims (8)

1. a kind of inner cavity filter (2), with the filter medium (4) folded and the filtering for being arranged in the filter medium (4) Side band (6,7) flexible on the fold profile (5) of fold, wherein the inner cavity filter (2) is in the side band (6,7) Bending intercept (15) deformation in the case where can around be parallel to it is described filtering fold folding seamed edge (10,13) arrangement Axis (17) bending, which is characterized in that the filter medium (4), which has, has the first crimp height (h11) first filtering fold (11) and with the second crimp height (h12) at least one second filtering fold (12), wherein second crimp height (h12) it is less than the first crimp height (h11), and wherein, the bending intercept (15) includes at least one described second mistake It filters fold (12).
2. inner cavity filter according to claim 1, which is characterized in that the bending intercept (15) is set up to described interior Chamber filter (2) is deformed inward on the direction of the filter medium (4) when being bent.
3. inner cavity filter according to claim 2, which is characterized in that the bending intercept (15) is set up to described interior Chamber filter (2) deforms to inside snap ring type on the direction of the filter medium (4) when being bent.
4. inner cavity filter according to claim 2 or 3, which is characterized in that the bending intercept (15) is in the inner cavity Filter (2) can sandwich between two first filtering folds (11) when being bent.
5. inner cavity filter according to claim 4, which is characterized in that two the first filtering folds can be sandwiched (11) the bending intercept (15) between is limited to the fold distance (a) between the two described first filterings fold (11).
6. according to claim 1 to inner cavity filter described in any one of 3, which is characterized in that at least one described second mistake Filter fold (12) is arranged between two first filtering folds (11).
7. according to claim 1 to inner cavity filter described in any one of 3, which is characterized in that the side band (6,7) has Two bending intercepts (15).
8. a kind of filter assemblies (1), with to inner cavity filter (2) described in any one of 7 and being used for according to claim 1 Accommodate the filter receiving portion (3) of the inner cavity filter (2).
CN201410689516.1A 2013-11-26 2014-11-26 Inner cavity filter and filter assemblies Active CN104667669B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013019690 2013-11-26
DE102013019690.6 2013-11-26

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CN104667669A CN104667669A (en) 2015-06-03
CN104667669B true CN104667669B (en) 2019-06-18

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DE (1) DE102014016560A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018191147A1 (en) * 2017-04-11 2018-10-18 Cummins Filtration Ip, Inc. Panel filter element
GB2580680B (en) * 2019-01-23 2021-10-20 Dyson Technology Ltd A filter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01199620A (en) * 1988-02-04 1989-08-11 Taiko:Kk Filter element
CN1094328A (en) * 1993-04-30 1994-11-02 达纳公司 Staggered short pleat air filter
WO1999067008A1 (en) * 1998-06-24 1999-12-29 Filterwerk Mann+Hummel Gmbh Filter system with a v-shaped filter cartridge
DE202004000029U1 (en) * 2004-01-02 2005-05-19 B & S Industrieservice Gmbh Pleated filter insert for installation in flow channel, especially for vehicle passenger compartment ventilation, has sealing strips on narrow sides, bonded to edges of folds
WO2010111411A1 (en) * 2009-03-25 2010-09-30 Porous Media, Llc Fluid filter assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01199620A (en) * 1988-02-04 1989-08-11 Taiko:Kk Filter element
CN1094328A (en) * 1993-04-30 1994-11-02 达纳公司 Staggered short pleat air filter
WO1999067008A1 (en) * 1998-06-24 1999-12-29 Filterwerk Mann+Hummel Gmbh Filter system with a v-shaped filter cartridge
DE202004000029U1 (en) * 2004-01-02 2005-05-19 B & S Industrieservice Gmbh Pleated filter insert for installation in flow channel, especially for vehicle passenger compartment ventilation, has sealing strips on narrow sides, bonded to edges of folds
WO2010111411A1 (en) * 2009-03-25 2010-09-30 Porous Media, Llc Fluid filter assembly

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DE102014016560A1 (en) 2015-05-28

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