CN102151449B - With the air cleaner of foam for panel - Google Patents
With the air cleaner of foam for panel Download PDFInfo
- Publication number
- CN102151449B CN102151449B CN201010265720.2A CN201010265720A CN102151449B CN 102151449 B CN102151449 B CN 102151449B CN 201010265720 A CN201010265720 A CN 201010265720A CN 102151449 B CN102151449 B CN 102151449B
- 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.)
- Expired - Fee Related
Links
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
Abstract
The present invention relates to the air cleaner, particularly a kind of air cleaner of band foam for panel, have the filter medium that accordion like is folding, it has folded edge in clean air side and original air side place.Foam for panel is placed on folded edge at least in part in clean air side or original air side place.In order to sealing air filter, foam for panel crosses the edge of described pleated filter media at least protrusion of described filter medium.
Description
Technical field
The present invention relates to a kind of air cleaner, particularly rectangular air filter, comprise accordion like pleated filter media, be made up of filter paper in particular.
Background technology
This air cleaner for internal combustion engine is disclosed, such as, in GB2197802.
In order to the safe operation of this internal combustion engine, it is important, certain air rate guaranteed by the air cleaner adopted.If want the service life or the maintenance intervals that improve existing air cleaner, the surface area of air cleaner can be expanded.But this can cause amplified filter itself, considers construction cost, is disadvantageous like this.
GB2197802 proposes at the polyurethane foam layer arranging a kind of annular apart from cylindrical folded filter paper one determining deviation place.This arrangement layer is at original air side (non-filtered air side) place, and object is the original air diffused into, and be used as prefilter to make by the flowing of the air of filter paper evenly, and thus increase service life of filter.
EP0599336A1 discloses a kind of rectangular air filter, it is furnished with a kind of planar configuration at original air side place, this planar configuration completely or primarily of mechanically, with the mode of gluing together or in cohesion mode compacting or fibrage composition closely, and its mainly natural textile.
DE20301643 discloses a kind of air cleaner be arranged in the air flow passage of automobile.This air cleaner is made up of the collapsing bellows that the formula that is interconnected be converted into of multiple accordion like with upper and lower folded edge is folding.There is in filter plug-in the another filter in filter pad form, and filter pad lies on folding upper or lower folded edge, and, on at least two outsides of the folding end position of collapsing bellows, filter pad has protrusion limit, and it protrudes and exceeds collapsing bellows and form sealing edge with in the fluid passage for sealing filter plug-in.
Summary of the invention
Therefore, the object of the invention is to further develop above-mentioned this air cleaner, can provide a kind of simple air cleaner, it can cheaply be produced, and has the service life extended to some extent especially.
According to the present invention, this above-mentionedly to be realized according to air cleaner provided by the invention by a kind of, has a foam for panel and is arranged to lie on the original air side of accordion like pleated filter media or at least some folded edge of clean air side.Foam for panel as additional filter and/or the potted component as end, and can realize the cramped construction of air cleaner.
The foamed material used in above-mentioned EP0599336A1 and DE20301643 is only for side seal air cleaner.According to the present invention, foam for panel is arranged in the terminal surface of (air side of filtered) place, original air side or the filter medium at clean air filtration side (air side after filtering) place by suggestion, and wherein foam for panel is covered with the folded edge in the original air side of filter medium or clean air side place at least in part.In content of the present invention, foam for panel lies on filter medium, should be understood to: make foam for panel cover the folding of at least three or more filter medium, preferably five or more, particularly 10 or more.
In one embodiment, foam for panel comprise open-cell foam materials.In this case, foam for panel is permeable for air to be filtered, thus can be arranged in upstream or the downstream of pleated filter media as additional filter media.The associated benefits of the use of foam for panel to use very low-cost production.Especially, when foam for panel is used as prefilter or preseparator, likely prevents the too early loading of filter medium (filter paper) and in this way improve the service life of air cleaner.
Normally netted can particularly a kind of foamed material based on polyester and polyethers with pliable and tough open-cell foam materials.Especially, it can be polyurethane (PUR) foam, such as, and PUR ester.
Foam for panel can have at least two sponge layers respectively possessing different porosities, to filter out the particle of the different sizes entering foam for panel from air.In this respect, can occur in facing to original air side in sponge layer oarse-grained filtration, and the downstream layer of foam for panel can be occurred in short grained filtration, thus filter efficiency is improved.Sponge layer can attach in several ways each other, such as, by gummed.
In yet, in order to sealing air filter, foam for panel protrudes, and has at least side to exceed the edge of pleated filter media.In this case, foam for panel can realize sealing function.Particularly when using open-cell foam materials, although foam for panel flatwise layout is on filter medium, also can guarantee 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; But importantly foam for panel can add, because foam for panel becomes horizontal layout with filter medium at an easy rate as the seal of filter medium.
Can be implemented in filter on bellows and fix filter material flitch, such as, by gluing together its edge, also crossing over whole surface area in spot shape or optionally.Or, when foam for panel insert in air filter housing the groove that mates and filter medium abut against sealing be extruded time, this filter material flitch fixed by filtration bellows can be omitted entirely; This can realize, and namely carries out as in the result of filtering plane contact between bellows and foam for panel and does not damage filter medium or filter medium be out of shape and do not need to adopt any extra support.
In yet, foam for panel is preferably presented as rectangular frame, and its outer rim along filter medium is covered with the folded edge in original air side or clean air side place.Foam for panel is used as sealing in this respect, and, as described above, can filter medium edge be protruded through; But as alternative, likely provide frame shape to seal especially, it does not protrude the edge crossing this filter medium yet.When filtering material plate is not very large to the coverage of filter medium, also likely adopt closed-cell foam, because the filtration behavior of foamed material on filter medium only has minimized impact in this case.Can appreciate that foam for panel is covered with filter medium or is optionally only partly covered with the filtration bellows in original air side or clean air side place, and the geometry being different from frame shape can be had.
In yet, foam for panel covers the folded edge of filter medium substantially completely 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 clean air side of filtering bellows completely.In order to improve the service life of filter medium, expedient method is that foam for panel is arranged on original air side place as prefilter.
Can from the present invention's detailed description of the invention subsequently, and in the accompanying drawing describing INVENTION IN GENERAL and claims, obtain other features and advantages of the present invention.Various functions of the present invention can realize separately or be combined.
Accompanying drawing explanation
Fig. 1 a shows to be had a kind of leap completely according to the present invention and filters bellows surface and use or the transverse sectional view of air cleaner first embodiment of coated foam for panel;
Fig. 1 b shows the top view at Fig. 1 a middle filtrator top;
Fig. 2 a shows the viewgraph of cross-section according to the present invention with air cleaner second embodiment along the foam for panel filtering the setting of bellows edge;
Fig. 2 b shows the top view at Fig. 2 a middle filtrator top.
Detailed description of the invention
Fig. 1 a, 1b show rectangular air filter 1, and it comprises the filter medium 2 (hereinafter referring to collapsing bellows) in accordion like folded filter paper form.Collapsing bellows 2 be connected to each other folding there is the upper folded edge 3 being positioned at original air side place and the lower folded edge 4 being positioned at clean air side place.The top side of air cleaner 1 attaches (such as by gummed) foam for panel 5, it is arranged across the whole surf zone on the folded edge 3 at clean air side place of filter medium 2, and protrudes the outline at edge 6 place (with reference to Fig. 1 b) crossed and filter bellows 2.Like this, (such as, carry out corresponding to shell (not shown) seal) a kind of sealing edge of this air cleaner 1 is provided for sealing.
Foam for panel 5 comprises the ventilative foamed material of perforate, is polyurethane under present circumstances, and it is used as prefilter or preseparator.Can appreciate that other is breathed freely and produces the foamed material of filter effect, particularly based on the foamed material of polyester or polyethers, also can be used as the material of foam for panel 5.
The open-cell foam materials of foam for panel comprises (such as by gummed) interconnective upper sponge layer 5a and lower sponge layer 5b.Upper sponge layer 5a is used for filtering from air at original air side place coarse granule (arrow with reference to Fig. 1 a), and has larger porosity than being used for the lower sponge layer 5b of filtration or separate fine particles.Filter bellows 2 be used for subsequently particle that specific filtration resistance filters out at foamed filter layer 5a, 5b place more small particle diameter obtain the particle of granularity.Be understandable that alternatively, only have a sponge layer, or in addition optionally can be used as the pre-filtering stage more than sponge layer 5a, 5b of two in figure.Equally, the surface of sponge layer can also be done coarse, can the surface area of filtered air to increase.
As substituting Fig. 1 a, 1b illustrated embodiment, when foam for panel 5 when narrow side or arrow side place protrude and protrude at longitudinal side place cross filter medium, also likely make the foam for panel 5 for sealing purpose only protrude at both sides place (such as at narrow side place) vis-a-vis and cross filter medium 2.Be appreciated that not to be must protrude with foam for panel 5 to cross filter medium, also can be arranged so that, such as, flush with filter medium 2.
Another embodiment of filter element 1 shown in Fig. 2 a, 2b, foam for panel 5 comprises single flexible sponge layer, and protrudes for providing sealing function at the terminal surface place of crossing filter medium 2 edge 6.In this case, foam for panel 5 forms a kind of framework extended along the edge 6 filtering bellows 2, and keeps flat the folded edge 3 against filtering bellows 2 primary side place.Be appreciated that foam for panel 5 is not must flush with longitudinal side of filtering bellows 2, as shown in Figure 2 b, optionally inwardly can extend further yet, such as, open certain distance with the marginating compartment filtering bellows 2, wherein spacing usually should more than 0.5 to 1cm.
The contact that keeps flat of foam for panel 5 allows it likely be connected with filter medium 2 in a straightforward manner.Equally, when air cleaner be inserted in the shell receiving vessel (not shown) formed suitably with guarantee filter medium 2 extruding abut against foam for panel 5 and in this way produce sealing effectiveness time, optionally can dispense the connection between filter medium 2 and foam for panel 5 completely.Keep flat to be contacted with by means of foam for panel 5 and filter on bellows 2, thus likely produce squeezing effect, and filter bellows 2 and can not damage or be out of shape.
Be appreciated that the framework shown in Fig. 2 a is not must protrude to cross air cleaner 2 to form sealing effectiveness.Otherwise, likely occur: foam for panel longitudinally can not protrude beyond the edge of filter medium 2 in side, 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, such as PUR ester, and it can permeate for the air entered.Be appreciated that and also optionally can use closed-cell foam material to seal, wherein the surface area at the clean air side place of foam for panel 5 covering is in this case not too large, or rephrase the statement, the capped frame table area that do not have filtering bellows 2 should be large as much as possible.
In all above-mentioned embodiments, additionally or as an alternative, a foam for panel or another foam for panel can be set on bottom side (clean air side), and it can be used as sealing and/or as rear separator.
Equally, substituting as the filter embodiment to above-mentioned rectangular filter form, air cleaner also can have different, particularly columniform geometry.In this case, according to cylindrical filter bellows be flow to from the outside the inside or flow to from the inside outside, suitable (such as circular ring surface type) foam for panel is placed with at the folded edge place of radially-inwardly locating of cylinder collapsing bellows and/or is placed at the folded edge place of radially outward locating in keeping flat contact, forms clean air side or original air side at this.
Although embodiments of the present invention have been shown and described the principle of invention in detail, be understandable that the present invention can by the embodied in other not deviating from these principles.
Claims (10)
1. an air cleaner, comprising:
Concertina fold formula filter medium, has folded edge at clean air side place and original air side place;
Foam for panel, it is placed on the described folded edge on described clean air side or on described original air side at least partly;
Wherein, in order to seal described air cleaner, described foam for panel at least protrudes the edge crossing described collapsible filter medium in the edge of described collapsible filter medium;
Wherein said foam for panel is presented as framework, its described edge along described collapsible filter medium, is covered with described folded edge at described original air side place or described clean air side place; Described foam for panel is used as sealing and extends beyond the described edge of described collapsible filter medium.
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 is the foamed material based on polyester or the foamed material based on polyethers.
4. air cleaner according to claim 2, wherein said foam for panel has the sponge layer that at least two possess different porosities separately.
5. air cleaner according to claim 2, wherein said foam for panel realizes sealing function, and wherein said foam for panel lies on described filter medium.
6. air cleaner according to claim 1, the described foam for panel being wherein positioned at described filter medium place is placed on 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 is covered with the folding of described filter medium at described original air side place or described clean air side place at least partly.
7. air cleaner according to claim 1, wherein said foam for panel is fixed to described filter medium by putting attached, or surface is fixed to described filter medium fully.
8. air cleaner according to claim 7, wherein said foam for panel has the edge being glued to described filter medium.
9. air cleaner according to claim 1, wherein air cleaner is rectangle.
10. air cleaner according to claim 1, wherein said filter medium is 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 CN102151449A (en) | 2011-08-17 |
| CN102151449B true 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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013010777A1 (en) * | 2013-06-28 | 2014-12-31 | Carl Freudenberg Kg | Flat medium with a tethering element |
| 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 (3)
| 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 |
Family Cites Families (7)
| 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 Muenster, De | |
| DE9216049U1 (en) * | 1992-11-26 | 1993-01-14 | Filterwerk Mann & Hummel Gmbh, 7140 Ludwigsburg, De | |
| 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 |
| US20060026937A1 (en) * | 2004-08-06 | 2006-02-09 | Nichols Jon G | Filter assembly including foam and pleated media |
-
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 (3)
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102009033262A1 (en) | 2011-01-27 |
| CN102151449A (en) | 2011-08-17 |
| DE102009033262B4 (en) | 2015-09-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20210714 |