WO2016001036A1 - Élément de filtration équipé d'une pluralité de soufflets de filtration - Google Patents

Élément de filtration équipé d'une pluralité de soufflets de filtration Download PDF

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Publication number
WO2016001036A1
WO2016001036A1 PCT/EP2015/064253 EP2015064253W WO2016001036A1 WO 2016001036 A1 WO2016001036 A1 WO 2016001036A1 EP 2015064253 W EP2015064253 W EP 2015064253W WO 2016001036 A1 WO2016001036 A1 WO 2016001036A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
bellows
filter bellows
filter element
flow direction
Prior art date
Application number
PCT/EP2015/064253
Other languages
German (de)
English (en)
Inventor
Robert Hasenfratz
Fabian Wagner
Original Assignee
Mann+Hummel Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mann+Hummel Gmbh filed Critical Mann+Hummel Gmbh
Publication of WO2016001036A1 publication Critical patent/WO2016001036A1/fr

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
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • 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
    • B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
    • 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
    • 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
    • B01D46/58—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 parallel

Definitions

  • the invention relates to a filter element for filtering a fluid with at least two filter bellows, in particular for use as an air filter of an internal combustion engine or as an interior air filter, in particular of a motor vehicle.
  • substantially plate-shaped filter cartridges which are arranged in corresponding receptacles in an air shaft.
  • Such filter cartridges generally have filter elements which consist of a zigzag folded filter material, for example paper or nonwoven fabric.
  • Filter housing which are used in the air duct through which the air to be filtered.
  • the filter insert can also be integrated into a motor vehicle air conditioner. It is essential that the filter arrangements formed from filter insert and filter insert receptacle meet certain requirements with regard to the tightness.
  • the filter inserts must be replaced at regular intervals, since with increasing occupancy of the filter element with dust, the filter performance noticeably decreases or in the case of adsorption filters the adsorption capacity is exhausted.
  • filter inserts which are composed of several plate-shaped filter elements.
  • the filter elements are arranged side by side according to the predetermined by the filter housing and the corresponding receptacle in the vehicle frame outer contour, such that the available filter surface is completely covered and touch the side walls of adjacent filter elements fitting.
  • a disadvantage of such a filter arrangement is that problems with regard to tightness can occur.
  • the filter elements made of nonwoven fabric used in air conditioning technology and in vehicle construction have considerably higher manufacturing tolerances than the corresponding filter elements. housing or frame structures. In the case of filter elements arranged next to one another, these manufacturing tolerances add up so that these filter elements assembled to form a filter insert are no longer precisely fitting to the given housing or frame construction. As a result, leaks may result between the filter elements and / or between the filter elements and the filter holder.
  • EP 1 447 250 A2 describes a device for receiving a filter insert composed of at least two substantially plate-shaped filter elements.
  • the device comprises lateral boundary walls and a floor. It is envisaged that the floor is terraced, with the formation of mutually offset in height arranged receiving elements for the individual filter elements.
  • the filter elements are thus arranged offset in height relative to each other.
  • the dimensions of the step-like lowered floor areas are each selected so that they are precisely matched to the associated filter elements.
  • the filter housing or the receptacle is divided into individual receiving elements, wherein the respective lateral boundary surfaces are formed by the side walls of the housing or the receptacle and the vertical step walls and the side walls of adjacent higher-lying filter elements.
  • An object of the invention is therefore to provide a filter element for filtering a fluid, which allows flexible space especially in the arrangement of inflow and outflow of a filter system, in particular in motor vehicles exploit.
  • a filter element comprising an assembly unit with at least two Filterbälgen.
  • a filter element for filtering a fluid, in particular for use as an air filter of an internal combustion engine or as an interior air filter, in particular of a motor vehicle, comprising an assembly unit with at least two filter bellows.
  • the at least two filter bellows each have an inflow surface and an outflow surface transversely to a flow direction.
  • the inflow surfaces and / or in each case the outflow surfaces of the at least two filter bellows are arranged at least partially in mutually parallel planes.
  • the inflow surfaces and / or in each case the outflow surfaces can be arranged completely in mutually parallel planes.
  • the filter element according to the invention differs from the prior art by the arrangement of the filter bellows to each other.
  • at least one inflow surface / outflow surface of the filter bellows is located on one plane.
  • the filter bellows are angularly offset from each other or overlap.
  • the filter bellows are vertically offset in parallel with respect to their inflow and outflow surfaces, i. the levels of the inflow and outflow surface have a height offset to each other.
  • An additional horizontal shift is also conceivable.
  • the second filter bellows may also lie within the planes of the inflow surface and outflow surface of the other filter bellows.
  • a seal can follow the course of the filter balancing orientation, but also lie on one level.
  • the at least two filter bellows may differ geometrically from each other and each consist of a different material.
  • One possible production method for producing a mounting unit from two filter bellows is, for example, plastic molding, but depending on the filter element design, another production method, such as, for example, polyurethane casting, can also be used.
  • the filter bellows can have a Stirnbandverleimung or sideband seal for lateral sealing.
  • a secondary air connection could, for example, be realized between the individual filter bellows.
  • a side surface of one of the at least two filter bellows can be aligned parallel to the flow direction in the assembly unit with a side surface of the respective other filter bellows.
  • two filter bellows which are the same in a cross-sectional area, for example, one behind the other, but can be arranged at a height offset, so that the filter element can have a step or staircase shape.
  • the at least two filter bellows can be arranged offset horizontally transversely to the throughflow direction such that the side surfaces of the at least two filter bellows parallel to the throughflow direction are spaced from one another transversely to the throughflow direction.
  • the filter bellows can be shifted horizontally against each other.
  • they can be arranged in a plane or offset in height. In this way, an irregular base surface of the filter element can be realized.
  • the inflow surface of one of the at least two filter bellows can be arranged downstream of the inflow surface of the respective other filter bellows and the outflow surface of one of the at least two filter bellows can be arranged in the flow direction upstream of the inflow surface of the respective other filter bellows.
  • the one filter bellows may have a smaller thickness than the other filter bellows, which may be expedient, for example, if the two Filter bellows consist of different filter media with different degrees of separation for dirt particles contained in the fluid.
  • the geometric shapes, in particular cross-sectional shape and / or cross-sectional size and / or thickness, of the at least two filter bellows may differ. In this way, completely irregular base areas and / or overall dimensions of a filter element can be designed.
  • filter bellows made from different materials can be combined and combined to meet complex filtration requirements.
  • the mounting unit may comprise a circumferential seal which extends in a plane.
  • a circumferential seal is particularly suitable for installation in a simply designed filter housing with a planar interface between two housing parts.
  • the mounting unit may have a circumferential seal, which runs parallel to a first height offset of the inflow surfaces in the flow direction and / or parallel to a second height offset of the outflow in the flow direction of the at least two filter bellows.
  • the circumferential seal can thus run on an upper or lower edge of the filter bellows, which can be arranged offset in height in a mounting unit.
  • the seal extends in sections parallel to one of the arrival and / or downstream surfaces of the filter bellows and also passes through a height offset in the direction of flow of the filter bellows.
  • the at least two filter bellows can be fluid-tightly connected by a mounting element.
  • a clear separation between the crude side and the clean side of a filter system can be represented favorably.
  • the mounting unit may have a circumferential mounting frame into which the at least two filter bellows are inserted in a fluid-tight manner.
  • a mounting frame provides a stable mounting element for receiving the filter bellows.
  • the filter bellows permanently connected permanently, for example, are glued. This way, even individual filter bellows can be conveniently exchanged and replaced in a maintenance case.
  • cellulose can be used as the filter medium of the filter bellows.
  • Cellulose is very flexible and also from an environmental point of view by the easy degradability of great advantage.
  • filter media also non-woven fabrics can be used conveniently.
  • the invention relates to a filter system for filtering a fluid which comprises at least one replaceable filter element which separates a raw side from a clean side of the filter system.
  • the filter system further comprises a filter housing having a first housing part and a second housing part, which enclose the inserted filter element, with at least one inlet and an outlet for a fluid in a housing wall.
  • the filter element comprises a mounting unit with at least two Filterbälgen, wherein the at least two filter bellows each have an inflow surface and an outflow surface transverse to a flow direction.
  • the inflow surfaces and / or the outflow surfaces of the at least two filter bellows are each arranged at least in regions in mutually parallel planes.
  • a filter element according to the invention as described above can be used favorably.
  • the filter housing By arranging the filter housing in two housing parts, the filter element can be conveniently mounted and also easily replaced in the event of maintenance.
  • Inlet and outlet of the filter system can be adapted to the installation situation and arranged favorably by the flexible arrangement of the at least two filter bellows.
  • the described filter system can advantageously be used as an air filter, in particular as an air filter of an internal combustion engine or as an interior air filter, in particular of a motor vehicle.
  • Fig. 1 is a side view of an assembly unit of two filter bellows after a
  • FIG. 2 shows an isometric illustration of an assembly unit made up of two filter bellows according to the exemplary embodiment in FIG. 1;
  • FIG. 3 is an isometric view of a mounting unit of two filter bellows according to a further embodiment of the invention, wherein the filter bellows are arranged offset laterally and in height;
  • Figure 4 is a side view of an assembly unit of two filter bellows according to another embodiment of the invention, in which a filter bellows has a smaller thickness than the other filter bellows.
  • FIG. 5 is an isometric view of a mounting unit of two filter bellows according to a further embodiment of the invention, wherein the filter bellows have different geometric shape;
  • Fig. 6 is a side view of an assembly unit of two Filterbälgen after a
  • Embodiment of the invention with a circumferential seal, which extends in a plane;
  • Fig. 7 is an isometric view of a filter element according to another
  • Embodiment of the invention with a mounting unit of two Filterbälgen which are connected to a mounting member and arranged in a mounting frame, and with a corresponding to the height offset of the filter bellows extending peripheral seal; 8 is an isometric view of a filter system according to an embodiment of the invention with the filter housing unfolded, shown in transparent, and a filter element according to FIG. 7;
  • FIG. 9 shows an isometric illustration of a filter system according to FIG. 8 with closed filter housing, shown in transparent form;
  • Fig. 10 is an isometric view of a filter element according to another
  • Embodiment of the invention with a mounting unit of two Filterbälgen, which are connected to a mounting member and arranged in a mounting frame, and with a corresponding to the height offset of the filter bellows circumferential seal.
  • Figure 1 shows a side view of an assembly unit 26 of two Filterbälgen 12, 14 according to an embodiment of the invention, wherein the Filterbälge 12, 14 are arranged vertically offset.
  • the filter bellows 12, 14 each have inflow surfaces 18, 20, which are flowed transversely to a flow direction 28 and lie in planes parallel to each other.
  • the outflow surfaces 22, 24 of the opposite surfaces of the filter bags 12, 14 are also in planes parallel to each other.
  • the inflow surfaces 18, 20 have a height offset 30, while the outflow surfaces 22, 24 have a height offset 32.
  • a filter element 10 for filtering a fluid in this case comprises an assembly unit 26 with at least two filter bellows 12, 14.
  • FIG. 1 An isometric view of the assembly unit 26 of two filter bellows 12, 14 according to the exemplary embodiment in FIG. 1 can be seen in FIG. It can be seen that the filter bellows 12, 14 are arranged offset in height, however, the side surface 34 of the filter bellows 12 is aligned with the side surface 36 of the filter bellows 14 parallel to the flow direction 28.
  • Figure 3 shows an isometric view of an assembly unit 26 of two Filterbälgen 12, 14 according to a further embodiment of the invention, wherein the Filterbälge 12, 14 laterally transversely to the flow direction 28 and in height parallel to the flow direction 28 are arranged offset so that the flow-through - Direction 28 parallel side surfaces 34, 36 of the at least two Filterbälge 12, 14 are spaced transversely to the direction of flow to each other.
  • an irregular base surface of the filter element 10 as well as the height offset can realize a generally flexible shape of the filter element 10.
  • 4 shows a side view of an assembly unit 26 of two filter bellows 12, 14 according to another embodiment of the invention, in which a filter bellows 14 has a smaller thickness than the other filter bellows 12.
  • the inflow surface 20 of the filter bellows 14 in the flow direction 28 behind the inflow surface 18 of the filter bellows 12 is arranged and the outflow surface 24 of the filter bellows 14 is arranged in the flow direction 28 in front of the inflow surface 22 of the other filter bellows 12.
  • the thickness difference of the filter bellows 14 results in the case by the thickness of the filter bellows 12 minus the height offset values 30, 32. Different thicknesses of filter bellows will come to bear particularly when using different filter media.
  • FIG. 5 shows an isometric illustration of a mounting unit 26 made of two filter bellows 12, 14 according to a further exemplary embodiment of the invention, wherein the filter bellows 12, 14 have different geometric shapes.
  • the filter bellows 14 has an oblique edge profile at a corner of the filter bellows 14. In this way, flexible basic shapes of filter elements can be realized, which can be adapted to installation situations of the filter systems.
  • FIG. 6 shows a side view of an assembly unit 26 made up of two filter bellows 12, 14 according to an exemplary embodiment of the invention with a circumferential seal 40, which runs in one plane.
  • a circumferential seal 40 is particularly suitable for installation in a simply designed filter housing 108 with a planar interface between two housing parts 109, 1 10 expedient.
  • FIG. 7 further shows an isometric illustration of a filter element 10 according to a further exemplary embodiment of the invention with a mounting unit 26 consisting of two filter bellows 12, 14, which are connected to a mounting element 42 and arranged in a mounting frame 44, and with a height offset corresponding to the filter elements. Bellows extending circumferential seal 40.
  • the mounting unit 26 has a circumferential seal 40, which extends parallel to a first height offset 30 of the inflow surfaces 18, 20 in the flow direction 28 of the two Filterbälge 12, 14.
  • the seal 40 is arranged on the outflow-side edge of the filter bellows 12, 14.
  • the two filter bellows 12, 14 are fluid-tightly connected by a mounting element 42.
  • the filter system 100 for filtering a fluid comprises an exchangeable filter element 10, which has a raw side 52 from a clean side 50 of the filter system 100 separates, a filter housing 108 having a first housing part 109 and a second housing part 1 10, which enclose the inserted filter element 10, with an inlet 102 and an outlet 104 for a fluid in a housing wall.
  • the filter element 10 comprises a mounting unit 26 with two filter bellows 12, 14, wherein the two filter bellows 12, 14 each have an inflow surface 18, 20 and an outflow surface 22, 24 transverse to a flow direction 28.
  • the inflow surfaces 18, 20 and the outflow surfaces 22, 24 of the two filter bellows 12, 14 are arranged in mutually parallel planes.
  • the filter housing 108 consists of a first housing part 109 and a second housing part 1 10, which are connected to a hinge 1 12.
  • the second housing part 110 is shown transparently in FIG. 8 for the sake of clarity.
  • the interface between the first housing part 109 and the second housing part 1 10 is executed according to the height offset between the two Filterbälgen 12, 14 of the filter element 10, so that the seal 40 when using the filter element 10, the filter housing 108 with the two housing parts 109, 1 10 and the clean side 50 seals against the raw side 52.
  • FIG. 9 shows an isometric view of the filter system 100 according to FIG. 8 with the filter housing 108 closed, shown in transparent.
  • the installed filter element 10, which with its seal 40 seals the filter housing 108 with the two housing parts 109, 110 and the clean side 50 against the raw side 52, can be seen.
  • the inlet 102 is arranged in the free space of the first housing part 109 given by the height offset of the filter bellows 12 against the filter bellows 14, while the outlet 104 is arranged in the free space of the second housing part 110 above the filter bellows 14.
  • FIG. 10 shows an isometric illustration of a filter element 10 according to a further exemplary embodiment of the invention, with a mounting unit 26 consisting of two filter bellows 12, 14.
  • the filter bellows 12 has two different filter bellows which adjoin a wall element 46 and are fluid-tight by means of the wall element 46 connected to each other.
  • the filter bellows 14 has four equal filter bellows, which are connected together by means of three wall elements 46.
  • the filter bellows 12, 14 are connected to a mounting element 42 and arranged in a mounting frame 44.
  • the assembly unit 26 has a circumferential seal 40 which extends with a height offset in the flow direction 28 of the two filter bellows 12, 14. Specifically, the seal 40 does not pass through the height offset between the two mutually offset Filterbälgen 12, 14, but the side of the filter bellows 12.
  • the two Filterbälge 12, 14 are fluid-tightly connected by the mounting member 42.
  • the mounting member 42 is formed vaulted matched to the height offset of the seal 40.
  • the mounting member 42 forms a (domed) closure plate between the Filterbälgen 12, 14 and the peripheral seal 40. In particular, the mounting member 42 surrounds the filter bellows 12 even at least two side surfaces.
  • the mounting frame 44 is preferably made of plastic and is (directly) formed on the filter bellows 12, 14 by means of an injection molding process (plastic overmolding).
  • the mounting frame 44 also serves for the lateral sealing of the folds of the bellows 12, 14.
  • the mounting frame 44 is made simultaneously with the mounting member 42 and / or the wall elements 46 by means of an injection molding or integrally formed on the Filterbälge 12, 14.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

L'invention concerne un élément de filtration (10), destiné à filtrer un fluide, qui comprend une unité de montage (26) pourvue d'au moins deux soufflets de filtration (12, 14). Les au moins deux soufflets de filtration (12, 14) comportent chacun une face côté afflux (18, 20) et une face côté reflux (22, 24) transversalement à une direction d'écoulement (28). Selon l'invention, les faces côté afflux (18, 20) et/ou les faces côté reflux (22, 24) des au moins deux soufflets de filtration (12, 14) sont disposées chacune au moins en partie dans des plans parallèles entre eux. L'invention concerne en outre un système de filtration (100) équipé d'un tel élément de filtration remplaçable (10).
PCT/EP2015/064253 2014-07-03 2015-06-24 Élément de filtration équipé d'une pluralité de soufflets de filtration WO2016001036A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014009802 2014-07-03
DE102014009802.8 2014-07-03

Publications (1)

Publication Number Publication Date
WO2016001036A1 true WO2016001036A1 (fr) 2016-01-07

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WO (1) WO2016001036A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10603616B1 (en) 2017-08-24 2020-03-31 American Air Filter Company, Inc. Reusable filter frame

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19709309A1 (de) * 1997-03-07 1998-09-10 Knecht Filterwerke Gmbh Plattenfilter aus zick-zack-förmig gefaltetem Bahnenmaterial
DE19816431A1 (de) * 1997-04-18 1998-10-22 Mann & Hummel Filter Filterelement für einen Luftfilter und ein Verfahren zu dessen Herstellung
EP1447250A2 (fr) * 2003-02-14 2004-08-18 Carl Freudenberg KG Dispositif pour loger un élément filtrant
DE102009056511A1 (de) * 2009-12-02 2011-06-09 Mann+Hummel Gmbh Filterelement und Verfahren zum Herstellen eines Filterelements
EP2371440A1 (fr) * 2010-03-24 2011-10-05 MANN+HUMMEL GmbH Élément de filtre à air

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19709309A1 (de) * 1997-03-07 1998-09-10 Knecht Filterwerke Gmbh Plattenfilter aus zick-zack-förmig gefaltetem Bahnenmaterial
DE19816431A1 (de) * 1997-04-18 1998-10-22 Mann & Hummel Filter Filterelement für einen Luftfilter und ein Verfahren zu dessen Herstellung
EP1447250A2 (fr) * 2003-02-14 2004-08-18 Carl Freudenberg KG Dispositif pour loger un élément filtrant
DE102009056511A1 (de) * 2009-12-02 2011-06-09 Mann+Hummel Gmbh Filterelement und Verfahren zum Herstellen eines Filterelements
EP2371440A1 (fr) * 2010-03-24 2011-10-05 MANN+HUMMEL GmbH Élément de filtre à air

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10603616B1 (en) 2017-08-24 2020-03-31 American Air Filter Company, Inc. Reusable filter frame

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