CN102151449A - Air filter with a foam material plate - Google Patents
Air filter with a foam material plate Download PDFInfo
- Publication number
- CN102151449A CN102151449A CN2010102657202A CN201010265720A CN102151449A CN 102151449 A CN102151449 A CN 102151449A CN 2010102657202 A CN2010102657202 A CN 2010102657202A CN 201010265720 A CN201010265720 A CN 201010265720A CN 102151449 A CN102151449 A CN 102151449A
- Authority
- CN
- China
- Prior art keywords
- foam
- panel
- filter medium
- air cleaner
- air side
- Prior art date
- 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.)
- Granted
Links
- 239000006261 foam material Substances 0.000 title claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000006260 foam Substances 0.000 claims description 66
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 18
- 229920002635 polyurethane Polymers 0.000 description 5
- 239000004814 polyurethane Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 238000011045 prefiltration Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to an air filter provided with a foam material plate, especially an air filter having an accordion-type folded filter medium which has folding edges at the cleaned air side and the original air side. the foamed material plate is disposed at least partly on the folding edge of the cleaned air side or the original air side. For sealing the air filter, the foam material plate is protruded from least one side of the filtering medium and exceeded from the edges of the folded filtering medium.
Description
Technical field
The present invention relates to a kind of air cleaner, particularly the rectangle air cleaner comprises accordion shape pleated filter media, is made by filter paper in particular.
Background technology
This internal combustion engine air filter that is used for is disclosed, for example in GB2197802.
Safe operation for this internal combustion engine it is important that the air cleaner that is adopted is guaranteed certain air rate.If want to improve the service life or the maintenance intervals of existing air cleaner, can enlarge the surface area of air cleaner.Yet this can cause amplifying filter itself, considers construction cost, is disadvantageous like this.
GB2197802 has proposed arranging a kind of polyurethane foam layer of annular apart from cylindrical folded filter paper one determining deviation place.This arrangement layer is located in original air side (not filtered air side), and it is more even that purpose is that the original air that diffuses into and the air as prefilter so that by filter paper flow, thereby and increases service life of filter.
EP 0599336A1 discloses a kind of rectangle air cleaner, it is furnished with a kind of planar configuration at original air side place, this planar configuration is fully or mainly by mechanically, with the gummed mode or in the cohesion mode compacting or closely fibrage form, and it mainly is a natural textile.
DE20301643 discloses a kind of interior air cleaner of air flow passage that is installed in automobile.This air cleaner is made up of the folding folding bellows of the formula that interconnects that is converted into of a plurality of accordion shapes of folded edge about having.Has the another filter that is the filter pad form in the filter plug-in, and filter pad lies on the folding last or following folded edge, and, on at least two outsides of the folding end position that folds bellows, filter pad has the protrusion limit, and its protrusion exceeds folding bellows and forms sealing edge to be used to seal filter plug-in in the fluid passage.
Summary of the invention
Therefore, the objective of the invention is to further develop above-mentioned this air cleaner, so that a kind of simple air cleaner can be provided, it can cheaply be produced, and has especially the service life that prolongs to some extent.
According to the present invention, this above-mentionedly realizes according to air cleaner provided by the invention by a kind of, has on some folded edge at least of original air side that a foam for panel is arranged to lie in accordion shape pleated filter media or clean air side.Foam for panel can be used as the additional filtering device and/or as the potted component of end with can realize the cramped construction of air cleaner.
The foamed material that uses among above-mentioned EP0599336A1 and the DE20301643 only is used for the side seal air cleaner.According to the present invention, suggestion is arranged in foam for panel that original air side (air side of filtered) is located or filters the terminal surface of the filter medium that side (air side after filtering) locates at clean air, and wherein foam for panel is covered with at least in part at the original air side of filter medium or the folded edge at clean air side place.In content of the present invention, foam for panel lies on the filter medium, should be understood that: make foam for panel cover the folding of three or more at least filter mediums, and preferred five or more, particularly 10 or more.
In one embodiment, foam for panel comprises open-cell foam materials.In this case, foam for panel is permeable for air to be filtered, thereby can be used as additional filter media and be arranged in the upstream or the downstream of pleated filter media.The associated benefits of the use of foam for panel is to use very low-cost production.Especially, when foam for panel is used as prefilter or preseparator, might prevent the too early loading of filter medium (filter paper) and the service life of in this way improving air cleaner.
Normally netted and pliable and tough open-cell foam materials can particularly a kind of foamed materials based on polyester and polyethers.Especially, it can be polyurethane (PUR) foam, for example, and the PUR ester.
Foam for panel can have at least two sponge layers that respectively possess different porosities, so that filter out the particles with different sizes that enters foam for panel from air.In this respect, can occur in the sponge layer facing to original air one side, and can occur in the downstream layer of foam for panel, thereby filter efficiency is improved short grained filtration to oarse-grained filtration.Sponge layer can attach in several ways each other, for example by gummed.
In another embodiment, for the sealing air filter, foam for panel protrudes, and has at least a side to exceed the edge of pleated filter media.In this case, foam for panel can be realized sealing function.Particularly when using open-cell foam materials, although the foam for panel flatwise layout on filter medium, can guarantee also that the effective surface area of filter medium can not reduce because of foam for panel, because air to be filtered can pass through foam for panel.Be appreciated that foam for panel also can have filter effect; Yet importantly foam for panel can be used as the seal of filter medium and adds at an easy rate, because foam for panel becomes horizontal layout with filter medium.
Can be implemented in to filter on the bellows and fix the filter material flitch, for example,, be spot shape or randomly also cross over whole surface area by gluing together its edge.Perhaps, when groove that mates in foam for panel inserts air filter housing and filter medium abut against sealing and be extruded, fix this filter material flitch on the bellows and can be dispensed fully filtering; This can realize, does not promptly damage filter medium as carrying out in the result who filters plane contact between bellows and the foam for panel or makes the filter medium distortion and do not need to adopt any extra support.
In another embodiment, foam for panel preferably is presented as rectangular frame, and its outer rim along filter medium is covered with the folded edge at original air side or clean air side place.Foam for panel in this respect as the sealing and, as described above, can protrude and pass through filter medium edge; Yet, as alternative, also might provide the frame shape sealing especially, it does not have to protrude the edge of crossing this filter medium.When filtering material plate when not being very big, also might adopt closed-cell foam, because foamed material has only minimized influence to the filtration behavior of filter medium in this case to the coverage of filter medium.Can appreciate that foam for panel is covered with filter medium or randomly only partly is covered with filtration bellows at original air side or clean air side place, and the geometry that is different from frame shape can be arranged.
In another embodiment, foam for panel covers the folded edge of filter medium basically fully at original air side or clean air side place.In this case, foam for panel is used as filter element and covers the original air side or the clean air side of filtering bellows fully.In order to improve the service life of filter medium, expedient method is that foam for panel is installed in original air side place as prefilter.
Can from the present invention subsequently the specific embodiment and describe in the accompanying drawing and claims of INVENTION IN GENERAL, obtain other features and advantages of the present invention.Every function of the present invention can realize separately or combination arbitrarily.
Description of drawings
Fig. 1 a shows the transverse sectional view that has a kind of air cleaner first embodiment of the foam for panel of crossing over filtration bellows surface fully and using or coat according to the present invention;
Fig. 1 b shows the vertical view at Fig. 1 a middle filtrator top;
Fig. 2 a shows according to the present invention to have along the viewgraph of cross-section of air cleaner second embodiment of the foam for panel that filters the setting of bellows edge;
Fig. 2 b shows the vertical view at Fig. 2 a middle filtrator top.
The specific embodiment
Fig. 1 a, 1b show rectangle air cleaner 1, and it comprises the filter medium 2 (hereinafter referring to folding bellows) that is accordion shape folded filter paper form.Interconnected the folding of folding bellows 2 has last folded edge 3 that is positioned at original air side place and the following folded edge 4 that is positioned at clean air side place.On the top side of air cleaner 1, attach (for example by gummed) foam for panel 5, it arranges across the whole surf zone on the folded edge 3 at clean air side place of filter medium 2, and protrudes and cross the outline (with reference to Fig. 1 b) at 6 places at the edge that filters bellows 2.Like this, be provided for sealing (for example, sealing) a kind of sealing edge of this air cleaner 1 corresponding to the shell (not shown).
Foam for panel 5 comprises the foamed material that perforate is ventilative, is polyurethane under the present circumstances, and it is as prefilter or preseparator.Can appreciate that other foamed material ventilative and the generation filter effect, particularly based on the foamed material of polyester or polyethers, also can be as the material of foam for panel 5.
The open-cell foam materials of foam for panel comprises (for example by gummed) the interconnective sponge layer 5a of going up and following sponge layer 5b.Last sponge layer 5a is used for filtering from air at original air side place coarse granule (with reference to the arrow of Fig. 1 a), and than being used for filtering or the following sponge layer 5b of separate fine particles has bigger porosity.Filter bellows 2 be used for subsequently particle that specific filtration resistance filters out in foamed filter layer 5a, 5b place more small particle diameter obtain the particle of granularity.Be understandable that replacedly, have only a sponge layer, or in addition optional can be used as the pre-filtering stage more than two sponge layer 5a, 5b among the figure.Equally, the surface of sponge layer can also be done coarsely, but so that increases the surface area of filtered air.
As substituting to Fig. 1 a, 1b illustrated embodiment, cross under the situation of filter medium when foam for panel 5 protrudes at narrow side or arrow side place and protrudes at vertical side place, also might make 5 of foam for panel that are used for sealing purpose protrude and cross filter medium 2 at places, both sides (for example at the narrow side place) vis-a-vis.Be appreciated that not to be to protrude with foam for panel 5 to cross filter medium, also can be arranged so that, for example, flush with filter medium 2.
Another embodiment of filter element 1 shown in Fig. 2 a, the 2b, foam for panel 5 comprises the single flexible sponge layer, and protrusion is used for providing sealing function at the terminal surface place of crossing filter medium 2 edges 6.In this case, foam for panel 5 constitutes a kind of framework that extends along the edge 6 that filters bellows 2, and keeps flat against the folded edge 3 that filters bellows 2 primary side places.Be appreciated that foam for panel 5 is not to flush with vertical side of filtering bellows 2, shown in Fig. 2 b, also can randomly inwardly further extend that for example, open certain distance with the marginating compartment that filters bellows 2, wherein spacing usually should be more than 0.5 to 1cm.
It might be connected with filter medium 2 in simple mode in the contact that keeps flat of foam for panel 5.Equally, when air cleaner is inserted into suitably in the shell receiving vessel (not shown) that forms when guaranteeing that filter medium 2 extruding abut against foam for panel 5 and in this way produce sealing effectiveness, randomly can dispense fully between being connected between filter medium 2 and the foam for panel 5.Keep flat to be contacted with by means of foam for panel 5 and filter on the bellows 2, thereby might produce squeezing effect, can not damage or be out of shape and filter bellows 2.
Be appreciated that the framework shown in Fig. 2 a is not must protrude to cross air cleaner 2 so that form sealing effectiveness.Otherwise what might take place is: foam for panel not longitudinally side protrude to surpass the edge of filter medium 2, and upwards insert in the shell of suitable shape and can provide sealing function equally.
The foam for panel 5 of Fig. 2 a, 2b can comprise open-cell foam materials, PUR ester for example, and it can permeate for the air that enters.To be appreciated that in order sealing also and can randomly to use closed-cell foam material, wherein the surface area at the clean air side place of foam for panel 5 coverings is not too large in this case, perhaps rephrase the statement, the frame table area that is not capped that filters bellows 2 should be big as much as possible.
In all above-mentioned embodiments, additionally or as an alternative, can on bottom side (clean air side), a foam for panel or another foam for panel be set, and it can be used as sealing and/or as the back separator.
Equally, as to the substituting of the filter embodiment of above-mentioned rectangular filter form, air cleaner also can have different, particularly columniform geometry.In this case, filtering bellows according to cylinder is to flow to the inside from the outside or flow to the outside from the inside, suitable (for example circular ring surface type) foam for panel is placed with the radially inside folded edge place of location and/or be placed to be at the folded edge place of location radially outward and keep flat contact at the folding bellows of cylinder, forms clean air side or original air side at this.
Although the principle of invention has been showed and described in detail to embodiments of the present invention, be understandable that the present invention can be with the embodied in other that does not deviate from these principles.
Claims (12)
1. air cleaner comprises:
The collapsible filter medium of accordion shape has folded edge at clean air side place and original air side place;
Foam for panel, it is placed on the described clean air side or on the described folded edge on the described original air side to small part;
Wherein, in order to seal described air cleaner, described foam for panel protrudes the edge of crossing described collapsible filter medium in an edge of described collapsible filter medium at least.
2. air cleaner according to claim 1, wherein said foam for panel comprises open-cell foam materials.
3. air cleaner according to claim 2, wherein said open-cell foam materials are based on the foamed material of polyester or based on the foamed material of polyethers.
4. air cleaner according to claim 2, wherein said foam for panel have at least two sponge layers that possess different porosities separately.
5. air cleaner according to claim 2, wherein said foam for panel is realized sealing function, and wherein said foam for panel lies on the described filter medium.
6. air cleaner according to claim 1, wherein said foam for panel is presented as framework, its described edge along described filter medium, at described original air side place or described clean air side place be covered with described folded edge.
7. air cleaner according to claim 1, wherein said foam for panel in fact at described clean air side place or described original air side place fully be covered with described folded edge.
8. air cleaner according to claim 1, the described foam for panel that wherein is positioned at described filter medium place is disposed in the terminal surface place of described clean air side or the terminal surface place of described original air side, and wherein said foam for panel to small part is covered with at described original air side place or the described filter medium at described clean air side place folding.
9. air cleaner according to claim 1, wherein said foam for panel is by putting the attached described filter medium that is fixed to, and perhaps the surface is fixed to described filter medium fully.
10. air cleaner according to claim 9, wherein said foam for panel has the edge that is glued to described filter medium.
11. air cleaner according to claim 1, wherein air cleaner is a rectangle.
12. air cleaner according to claim 1, wherein said filter medium is a filter paper.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009033262.6 | 2009-07-14 | ||
| DE102009033262.6A DE102009033262B4 (en) | 2009-07-14 | 2009-07-14 | Air filter with foam plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102151449A true CN102151449A (en) | 2011-08-17 |
| CN102151449B CN102151449B (en) | 2015-11-25 |
Family
ID=43383858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010265720.2A Expired - Fee Related CN102151449B (en) | 2009-07-14 | 2010-07-14 | With the air cleaner of foam for panel |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102151449B (en) |
| DE (1) | DE102009033262B4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105339069A (en) * | 2013-06-28 | 2016-02-17 | 卡尔·弗罗伊登伯格公司 | Flat medium with a connecting element |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013108826B4 (en) | 2013-08-14 | 2016-09-08 | ABT System GmbH | Compressor with recessed electric motor |
| US11149699B2 (en) | 2018-12-04 | 2021-10-19 | Mann+Hummel Gmbh | Filter element for an engine air filter assembly having a nonwoven pre-filter and related method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5391212A (en) * | 1992-06-04 | 1995-02-21 | Filterwerk Mann & Hummel Gmbh | Filter system, especially for filtering the air intake of an internal combustion engine |
| CN1038393C (en) * | 1993-05-04 | 1998-05-20 | 曼·胡默尔滤清器有限公司 | Core of filter |
| US6312489B1 (en) * | 1997-04-18 | 2001-11-06 | Filterwerk Mann & Hummel Gmbh | Filter element for an air filter and a method for the production thereof |
| US20060026937A1 (en) * | 2004-08-06 | 2006-02-09 | Nichols Jon G | Filter assembly including foam and pleated media |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3290870A (en) * | 1963-11-21 | 1966-12-13 | Walker Mfg Co | Disposable air filter for internal combustion engines |
| GB2197802A (en) | 1986-11-26 | 1988-06-02 | Locker Air Maze Limited | Filter |
| DE9116336U1 (en) * | 1991-09-10 | 1992-07-30 | Ing. Walter Hengst GmbH & Co KG, 4400 Münster | Air filter insert |
| DE9216049U1 (en) | 1992-11-26 | 1993-01-14 | Filterwerk Mann & Hummel Gmbh, 7140 Ludwigsburg | filter |
| US6156089A (en) * | 1996-11-27 | 2000-12-05 | Air Kontrol, Inc. | Two-stage air filter with multiple-layer stage and post-filter stage |
| DE20301643U1 (en) | 2003-02-03 | 2004-06-09 | B & S Industrieservice Gmbh | A filter insert for construction of an air filter in an automobile air streaming channel from a fluted filter comprising a number of piano accordion like folds useful for automobile air filtration |
-
2009
- 2009-07-14 DE DE102009033262.6A patent/DE102009033262B4/en not_active Expired - Fee Related
-
2010
- 2010-07-14 CN CN201010265720.2A patent/CN102151449B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5391212A (en) * | 1992-06-04 | 1995-02-21 | Filterwerk Mann & Hummel Gmbh | Filter system, especially for filtering the air intake of an internal combustion engine |
| CN1038393C (en) * | 1993-05-04 | 1998-05-20 | 曼·胡默尔滤清器有限公司 | Core of filter |
| US6312489B1 (en) * | 1997-04-18 | 2001-11-06 | Filterwerk Mann & Hummel Gmbh | Filter element for an air filter and a method for the production thereof |
| US20060026937A1 (en) * | 2004-08-06 | 2006-02-09 | Nichols Jon G | Filter assembly including foam and pleated media |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105339069A (en) * | 2013-06-28 | 2016-02-17 | 卡尔·弗罗伊登伯格公司 | Flat medium with a connecting element |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102009033262A1 (en) | 2011-01-27 |
| CN102151449B (en) | 2015-11-25 |
| DE102009033262B4 (en) | 2015-09-10 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20210714 |
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| CF01 | Termination of patent right due to non-payment of annual fee |