WO2018050367A1 - Élément filtrant et système de filtre - Google Patents

Élément filtrant et système de filtre Download PDF

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Publication number
WO2018050367A1
WO2018050367A1 PCT/EP2017/070096 EP2017070096W WO2018050367A1 WO 2018050367 A1 WO2018050367 A1 WO 2018050367A1 EP 2017070096 W EP2017070096 W EP 2017070096W WO 2018050367 A1 WO2018050367 A1 WO 2018050367A1
Authority
WO
WIPO (PCT)
Prior art keywords
seal
filter
sealing
web
filter element
Prior art date
Application number
PCT/EP2017/070096
Other languages
German (de)
English (en)
Inventor
Daniel Schmid
Sven Epli
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
Priority to KR1020197006364A priority Critical patent/KR20190043547A/ko
Priority to DE112017004660.2T priority patent/DE112017004660A5/de
Priority to CN201780056978.1A priority patent/CN109689181B/zh
Publication of WO2018050367A1 publication Critical patent/WO2018050367A1/fr

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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
    • B01D46/0002—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
    • 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
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet 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
    • B01D46/52—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
    • B60H3/0608—Filter arrangements in the air stream
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F02M35/02416—Fixing, mounting, supporting or arranging filter elements; Filter element cartridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F02M35/02475—Air cleaners using filters, e.g. moistened characterised by the shape of the filter element
    • F02M35/02491—Flat filter elements, e.g. rectangular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2271/00—Sealings for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2271/02—Gaskets, sealings
    • B01D2271/022—Axial sealings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2271/00—Sealings for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2271/02—Gaskets, sealings
    • B01D2271/025—Making of sealings
    • 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
    • B60H3/0608—Filter arrangements in the air stream
    • B60H2003/065—Details for holding filter elements in position

Definitions

  • the invention relates to a filter element for filtering a fluid, in particular for use for cassette air filter of an internal combustion engine or as an interior air filter, in particular of a motor vehicle and a filter system with a filter element.
  • pleated or pleated filter media are often used. It is often necessary to support the fold profiles by means of aids, so that the shape is retained even when passing through the fluid. Furthermore, it is desirable to seal the filter elements at their edges against the filter holder or the respective filter housing so that no unfiltered fluid can flow past the pleated filter medium.
  • a filter element which is in particular an indoor air filter for a motor vehicle.
  • the filter element has a folded filter bellows, a plastic frame injected at least partially onto the filter bellows, and a plastic-looking seal at least partially foamed onto the plastic frame.
  • the molded on the filter bellows plastic frame is used, for example, to support folding profiles of the filter bellows. Furthermore, the plastic frame injection-molded onto the filter bellows can serve for lateral sealing, for example, with respect to a filter receptacle.
  • the plastic frame and the plastic foam seal are produced in an injection molding process.
  • spraying the plastic frame which is sufficiently rigid to give stability to the filter bellows, one achieves a sufficiently strong connection with the folding profiles.
  • injecting the plastic foam seal for example by a reaction injection molding process, any shapes for frame and seal can be realized.
  • not all material combinations for the connection of plastic frame and plastic foam seals are suitable. Disclosure of the invention
  • An object of the invention is to provide a filter element for filtering a fluid, in particular for air filtration, in particular for cabin air filtration, which has a permanent tightness when used in a filter housing, the frame is unproblematic especially in the selection of materials for the plastic.
  • Another object is to provide a filter system for filtering a fluid to receive such a replaceable filter element.
  • a filter element for filtering a fluid with at least one filter bellows, which is circumferentially surrounded by a frame, with a laterally projecting seal-carrying web, wherein in the web openings are provided, which are along its outer edge run, wherein a circumferential seal on the web is provided and gasket material of the seal extends through the openings, and at least one sealing surface of the seal with respect to a flat side of the web is laterally offset from the openings.
  • a filter element for filtering a fluid with at least one filter bellows, which is circumferentially surrounded by a frame, with a laterally projecting seal-carrying web, wherein in the web openings are provided, which along the Run outside edge, wherein a web-circumferential seal is provided and sealing material of the seal extends through the openings, and at least one sealing surface of the seal with respect to a flat side of the web is laterally offset from the openings.
  • the object is achieved by a filter system for filtering a fluid with at least one such filter element.
  • a filter element for filtering a fluid with at least one filter bellows, which has a designated raw side and one of these opposite intended clean side.
  • the filter bellows circumferentially on a frame with an outer edge, in which openings are provided through which openings preferably sealing material of a seal extends, which has at least one sealing surface so that an introduction of force via the at least one sealing surface laterally offset to a sealing line of the frame is provided to the openings.
  • the filter bellows circumferentially surrounded by a frame with a laterally projecting seal-carrying web, wherein in the web openings are provided which extend along the outer edge, wherein a web-circumferential seal is provided, wherein sealing material of the seal by the Openings extends, and at least one sealing surface of the seal with respect to a flat side of the web is laterally offset from the openings.
  • the at least one sealing surface is provided so that an introduction of force via the at least one sealing surface on a sealing line of the frame, in particular of the web, laterally offset from the openings is provided.
  • the force receiving surface of the seal can be chosen so that it is not weakened by material breakthroughs in the frame and / or in the web such as openings. The anchoring of the seal on the frame is thus largely decoupled from the sealing function.
  • the web and the side wall of the frame form a one-piece component, and in particular the web can be produced in one piece with the side wall of the frame.
  • the filter bellows can be configured as a flat filter and be formed from a filter medium, which is folded along fold edges zigzag into folds which each extend between opposite end edges of the filter bellows. The folding edges of the filter bellows are on the raw side in an inflow surface and on the clean side in an outflow surface of the filter bellows.
  • the openings can preferably be provided circumferentially in the frame, in particular in the web.
  • the inflow and outflow surfaces can be flat surfaces or freeform surfaces that can be designed as needed.
  • the seal of the filter element usually has a different material than web and frame, since the seal has to fulfill another function. Therefore, for example, the seal is made of polyurethane (PUR), which proves to be flexible enough, to achieve a permanent sealing function, while the frame may be made of polyamide (PA), polypropylene (PP) or polyester, for example.
  • PUR polyurethane
  • PA polyamide
  • PP polypropylene
  • the encircling frame of the filter bellows for example made of plastic, can be molded directly onto the filter bellows in an injection molding process; in particular, the filter bellows can be directly encapsulated with a frame side wall as a front edge seal. As plastics such as PA or PP can be used, with PP is less expensive.
  • a seal for sealing between the raw side and the clean side of the filter bellows can then be molded or foamed onto an outer edge of the frame.
  • seals made of PUR for example, are molded onto PA frames, with the PUR seal forming a bond with the PA frame.
  • a molded PUR seal does not adhere to the cost-effective PP frame in the desired manner, but can become detached from the frame during operation, which can lead to leakage of the filter element.
  • openings are provided circumferentially in the web around the frame, so that the molded sealing material can penetrate into the openings and penetrate them.
  • the cured seal thus has an advantageous toothing with the web and thus the frame, whereby a durable durability of the seal and thus the tightness of the filter element is ensured.
  • Appropriately can be provided as openings long holes whose longer dimension extends along the web. Due to the undercut of the molded seal thus results in an advantageous anchoring of the seal between the web of the frame and the seal.
  • a plurality of closely spaced oblong holes can be provided in the web in order to achieve the most favorable anchoring of the seal with the web and thus the frame. Sealing surfaces of the molded on the web of the frame seal can then be carried out expediently on Dichtungswülsten or sealing lips or even on a flat portion of the seal, the seal geometry may be conveniently arbitrary.
  • the seal can advantageously have two sealing surfaces which seal in mirror-symmetrical manner both in the direction of the raw side and in the direction of the clean side on both sides of the web.
  • only one sealing surface may be present, which may be oriented, for example, in the direction of the raw side or the clean side.
  • a force in the seal to achieve the sealing effect for example, by housing edges when placing a housing shell on a housing base the filter housing, then advantageously takes place on a sealing line of the web, which is provided laterally offset from the openings.
  • the sealing line can be arranged radially outside the openings, namely between the outer edge of the web and the openings.
  • the sealing line can be arranged radially inside the openings, namely between the openings and the filter bellows.
  • the introduction of force takes place away from the raw fluid region of the filter element. This further ensures that the sealing effect of the seal is kept low and the sealing material is not pressed through the opening. This allows a uniform force curve when introducing forces into the seal, so that the risk of leakage of the filter element is reduced. In this way, sealing function and anchoring of the seal on the frame of the filter bellows can be advantageously separated.
  • the seal of the filter element usually has a different material than web and frame and these materials can have different compression forces with the same compression, by separating the sealing function and anchoring at the same compression a different sealing effect avoided become. In addition, the space requirement of the filter element can be reduced.
  • the seal which surrounds the web can have at least one sealing bead formed on one side of the seal, and in particular at least one of the sealing faces of the seal can be arranged on the sealing bead.
  • the sealing bead may preferably be formed in the axial direction.
  • the axial extent may be formed transversely, in particular perpendicular, to the flat side of the web.
  • a sealing bead is particularly favorable for power absorption and introduction into the frame.
  • the sealing surface may be formed in a flat area of the seal.
  • a sealing lip or wiper may be provided as a sealing surface.
  • the at least one sealing surface may be arranged parallel to the web. In this way, a circumferentially uniform application of force is possible.
  • a sealing surface may be arranged in the axial direction above and / or below the web.
  • the sealing surface may be arranged parallel to the fold edges and / or inflow surface and / or outflow surface of the filter bellows. This allows a simple construction of counter surfaces for the sealing surface.
  • the at least one sealing surface is arranged axially above the web, an introduction of force upon insertion into a housing lower part and placement of a housing upper part can be achieved favorably in the frame, whereby the load on the seal is reduced and a permanent sealing effect is ensured.
  • the seal in the region of the sealing bead have a greater axial extent than in the region of the outer edge and the openings.
  • an anchoring function of the sealing material in the web and a sealing function on the sealing bead or the sealing beads of the seal can be separated from one another in this way.
  • the axial extent may be formed transversely, in particular perpendicular, to the flat side of the web.
  • a projection of the sealing surface can be arranged on the web between the openings and the filter bellows. This can be ensured that the force is applied to the sealing surface in a stable region of the web, which is not weakened by the serving for anchoring the seal openings and removed from the raw side.
  • the introduction of force can be provided via the at least one sealing surface radially inward, namely between the openings and the filter bellows, in the opening-less region of the frame.
  • the force can be passed directly through the seal from a sealing surface to an opposite sealing surface and / or on the frame of the filter element.
  • the burden of the sealing material is lower, since the risk that the sealing material is pressed when force is introduced through the openings and thus in the long run a possible leakage could be reduced.
  • the load on the seal is reduced by exerting a non-uniform force in the sealant material in this way.
  • the web can be arranged parallel to folding edges and / or inflow and / or outflow. This allows a simple construction and the most homogeneous possible introduction of force into the frame.
  • the web may be formed at a free end of the frame.
  • the side wall of the frame can accommodate the filter bellows completely.
  • the openings may be formed in the web as elongated holes, which are arranged with their longer extension parallel to the outer edge of the web.
  • the outer edge of the web can be embedded in the sealing material of the seal.
  • the frame can be conveniently sealed circumferentially over the web.
  • the anchoring of the gasket to the frame is suitably enhanced so that forces can be conveniently introduced into the frame via the gasket.
  • the at least one sealing bead may have a trapezoidal cross-section. This allows a precise positioning of the location of the introduction of force in the sealing surfaces and a stable shape of the sealing bead.
  • two sealing beads on the web can be arranged opposite one another.
  • on both sides of the web sealing surfaces may be provided for two housing parts, between which the filter element is intended to be used.
  • the seal on one side of the sealing bead having a sealing surface and the web opposite the other of the sealing surfaces in a flat region of the seal.
  • the frame may be formed of plastic and molded onto the filter bellows.
  • the encircling frame of the filter bellows can be injection-molded, for example, advantageously made of plastic in an injection molding directly to the filter bellows, in particular, the filter bellows with a frame side wall as End edge sealing to be directly overmoulded.
  • the sealing of the filter bellows is achieved in a suitable manner.
  • the frame may be formed of polypropylene (PP).
  • PP is a low-cost plastic with suitable properties for use as a filter element, in particular in an air filter system of a motor vehicle.
  • PP can be processed favorably in an injection molding process.
  • the seal may be made in a 2K process with the frame.
  • PP is used as the material for the frame and PUR for the gasket
  • the gasket can be conveniently manufactured and molded in the production of the frame in a two-component injection molding process.
  • a suitable sealing effect for the filter element can be achieved in a reliable and cost-effective manner.
  • the seal can be injection-molded by means of plastic injection molding on the frame and in particular be formed of high-pressure polyurethane.
  • a very cost-effective solution for achieving a favorable and permanent sealing effect can be achieved together with a reliable anchoring of the seal with the frame, which is also suitable for cost-effective mass production.
  • the mechanical stability of the seal for permanent use conditions, especially in the automotive sector is so advantageous.
  • the seal may be formed as a plastic foam seal and be formed in particular from free-foaming polyurethane.
  • the seal can be foamed with a suitable tool to the frame, wherein the tool predetermines and determines the contours of the sealing surfaces, while more free area can be provided in the tool over which the sealing material can foam out freely.
  • the invention relates to a filter system for filtering a fluid, comprising a filter housing and a filter element interchangeable in the filter housing between a raw side and a clean side, with at least one filter bellows.
  • the filter bellows has an intended raw side and a designated clean side which lies opposite the intended one, the filter bellows being circumferentially surrounded by a frame, with a laterally protruding seal-carrying web, wherein in the web openings are provided, which extend along the outer edge thereof, wherein a seal at the web is provided, wherein sealing material of the seal extends through the openings, and at least one sealing surface of the seal relative to a flat side of the web laterally offset from the Apertures is arranged.
  • the at least one sealing surface may be formed on a sealing bead or on a sealing lip or in a flat region of the seal.
  • the housing parts may have correspondingly formed housing-side sealing surfaces.
  • the introduction of force via the at least one sealing surface in the open area of the web of the frame, in particular between the openings and the filter bellows may be provided.
  • the force in the introduction of force, the force can be passed directly through the seal from a sealing surface to an opposite sealing surface and / or on the web of the filter element.
  • the stress on the sealing material is less, as the risk that the sealing material is forced through the openings and thus in the long run a possible leakage could be reduced.
  • the load on the seal is reduced by exerting a non-uniform force in the sealant material in this way.
  • a first sealing surface may be provided for sealing the clean side of the filter element against an upper housing part and a second sealing surface for sealing the raw side of the filter element against a lower housing part.
  • the at least one sealing surface may be arranged axially above the web.
  • 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.
  • Figure 1 is an isometric view of a filter element according to an embodiment of the invention with molded circumferential seal.
  • Fig. 2 is an isometric view of the filter element of Figure 1 without circumferential
  • FIG. 3 shows a longitudinal section through the filter element according to FIG. 1;
  • FIG. 4 shows a cross section through the filter element according to FIG. 1;
  • Fig. 5 shows a detail with focus on the sealing region of the filter element
  • FIG. 1 A first figure.
  • FIG. 6 shows a section with focus on the sealing region of the filter element installed in a filter housing
  • FIG. 7 shows an isometric view of a filter element according to a further exemplary embodiment of the invention with molded circumferential seal
  • FIG. 8 shows a longitudinal section through the filter element according to FIG. 7;
  • FIG. 9 shows a cross section through the filter element according to FIG. 7;
  • FIG. 11 shows the sealing region of the filter element with tool for the free-foaming process
  • FIG. 1 shows an isometric view of a filter element 10 according to an embodiment of the invention with molded circumferential seal 40, while in FIG 2, the filter element 10 without molded circumferential seal 40 is shown.
  • FIG. 3 shows a longitudinal section through the filter element 10 and
  • FIG. 4 shows a cross section.
  • FIG. 5 shows a section with a focus on the sealing region of the filter element 10.
  • FIG. 6 shows the detail of the filter element 10 installed in a filter housing 108, wherein the filter housing 108 with housing top part 12 and housing bottom part 1 14 is shown schematically.
  • the filter element 10 has a filter bellows 12, which has a designated unfiltered side 50 and an intended clean side 52 opposite to it and is formed from a filter medium 14 which is folded in a zigzag shape along folding edges 26 into folds 34, which are each between opposite end edges 22, 23 of the filter bellows 12 extend.
  • the folded edges 26 are each on the raw side in an inflow surface 13 and on the clean side in an outflow surface 15, which in particular may each be planar.
  • the inflow and outflow surface 13, 15 is formed perpendicular to the vertical axis 1 6 of the filter bellows 12 in this embodiment.
  • the filter bellows 12 has circumferentially a frame 28 with a side wall 29 and a circumferentially arranged laterally projecting web 31 with an outer edge 32.
  • the web 31 is preferably arranged at the free end of the side wall 29, for example, at the intended pure-side free end.
  • openings 30 are provided circumferentially through which openings 30 sealing material of the seal 40 extends.
  • the seal 40 is thus securely anchored to the frame 28.
  • the seal 40 has two sealing beads 41, 43 lying opposite one another on the web 31, each having a sealing surface 42, 44 such that an introduction of force via the sealing surfaces 42, 44 of the sealing beads 41, 43 to a sealing line of the web 31 is laterally offset from the openings 30 occurs when the sealing surfaces 42, 44 are viewed in projection on the web 31, as can be seen in particular in Figures 5 and 6.
  • the frame 28 with side wall 29 and web 31 is formed of plastic and molded onto the filter bellows 12, wherein the frame 28 may advantageously be formed from the inexpensive polypropylene.
  • the frame 28 the function of the end edge seal, which usually takes place with a sideband, advantageously take over.
  • the frame 28 may additionally be stiffened by stabilizing webs 24 extending in the longitudinal direction of the filter bellows 12, so that even larger filter elements 10 can be made resistant to torsion.
  • the frame 28 may be on the outside as in The embodiment shown in Figure 1, in addition stiffened by a ribbing 25 on the side wall 29.
  • the seal 40 can be injection-molded by means of plastic injection molding on the web 31 of the frame 28 and in particular be formed of high-pressure polyurethane.
  • the seal 40 may also be made in a 2K process with the frame 28.
  • the openings 30 may be formed in the web 31 in particular as slots, which are arranged with their longer extension parallel to the outer edge 32 of the web 31.
  • the injection molding of the PUR seal 40 results in a particularly favorable anchoring with the web 31 of the frame 28.
  • FIG. 3 shows the zigzag folding of the filter bellows 12 with the fold edges 26 of the folds 34 facing the raw side 50 and the clean side 52, respectively. Further, the T-shaped cross-section of the molded onto the outer edge 32 of the web 31 seal 40 can be seen, with details of the seal 40 are shown in Figure 5. The flow direction 54 of the fluid to be filtered from the raw side 50 to the clean side 52 of the filter bellows 12 is also shown.
  • FIG. 4 further clarifies the function of the stabilizing webs 24 for stiffening the filter bellows 12 by additional supporting anchoring of the filter bellows 12 to the frame 28.
  • FIG. 5 shows a section with a focus on the sealing region of the filter element 10 according to FIG. 1.
  • the seal 40 which is molded onto the side wall 29 of the frame 28 laterally projecting web 31 of the frame 28, passes through the elongated holes along the outer edge 32 formed openings 30 of the web 31, so that the seal 40 firmly anchored to the frame 28 is.
  • the outer edge 32 is embedded in the sealing material of the seal 40.
  • the seal 40 has in the illustrated embodiment, two opposing sealing surfaces 42, 44, which are arranged axially above or below the web 31.
  • the sealing surfaces 42, 44 are formed parallel to the web 31 and parallel to the outer edge 32 and each lie on a sealing bead 41, 43.
  • sealing surfaces 42, 44 at a distance 33 from the openings 30 radially inwardly to the side wall 29 of the frame 28, namely between the openings 30 and the filter bellows 12, axially above the opening area of the Stegs 31 arranged, which is very favorable for the introduction of force as shown in Figure 6.
  • FIG. 6 shows a section with focus on the sealing region of the filter element 10 installed in a filter housing 108.
  • the filter element 10 lies with the sealing surface 44 of the seal 40 on the lower housing part 14 of the filter housing 108, while the upper housing part 12 of the filter housing 108 rests from above on the sealing surface 42. If the filter housing 108 is closed, the introduction of force 48 via the sealing surfaces 42, 44 of the sealing beads 41, 43 between the openings 30 and the filter bellows 12 in the open area of the web 31 of the frame 28 can take place. In this way, the forces exerted to seal the filter element 10 in the filter housing 108 to separate the raw side 50 and clean side 52 may be initiated directly into the web 31 of the frame 28.
  • the sealing material is so evenly loaded, and in particular the sealing material is not subject to pressure in the region of the openings 30. Thus, the function of the seal 40 can advantageously be permanently ensured.
  • FIG. 7 shows an isometric illustration of a filter element 10 according to a further exemplary embodiment of the invention with a molded circumferential seal 40.
  • the essential difference from the exemplary embodiment illustrated in FIGS. 1 to 6 represents the shape of the seal 40, which can be better seen in the further FIGS. 8 to 11.
  • the seal 40 is made of free-foaming polyurethane.
  • the longitudinal section in Figure 8 and the cross section in Figure 9 of the filter element 10 the different cross-section of the seal 40 can be seen.
  • the other embodiment of the filter element 10 corresponds to the embodiment of the first embodiment and will therefore not be explained further.
  • FIG. 10 shows a section with a focus on the sealing region of the filter element 10 according to the further exemplary embodiment.
  • the seal 40 is designed as a plastic foam seal and in particular made of free-foaming polyurethane on the web 31.
  • FIG. 11 shows the sealing region of the filter element 10 with tool 130 for the free-foaming process.
  • the seal 40 as can be seen in cross-section, also has two sealing surfaces 42, 44, which are determined by the shape of the tool 130 during the PUR free-foaming process, but only one sealing bead 41 is provided, on which the sealing surface 42 is arranged is. At the Bottom, the seal 40 is flat and has here the second sealing surface 44.
  • the tool 130 may conveniently comprise two parts 132, 134 which may be removed after curing of the PUR material.
  • the introduced PUR material can fill the cavity defined by the two tool parts 132, 134 and thus form the seal 40 with the two sealing surfaces 42, 44, the PUR material being foamed by the two tool parts 132, 134 formed gap 136 can expand.
  • the shape of the seal 40 can be given by the shape of the tool parts 132, 134 low. Such a free-foaming process can advantageously enable a very cost-effective production of the seal 40.
  • the filter system 100 for filtering a fluid has a filter housing 108 and a filter element 10, which is arranged exchangeably in the filter housing 108 between a raw side 50 and a clean side 52.
  • the filter element 10 corresponds, for example, to the exemplary embodiment described in FIGS. 1 to 6 with two sealing beads.
  • the filter housing 108 has a housing lower part 1 14 and an upper housing part 1 12, between which the filter element 10 is arranged.
  • An inlet 102 is arranged in the lower housing part 14 so that the fluid to be filtered can flow in the flow direction 54 through the inlet 102 in the lower housing part 14 and then flows through the filter element 10 from the raw side 50 to the clean side 52 of the filter element 10 and then through the arranged in the upper housing part 1 12 outlet 104 in the flow direction 54 can flow out again.
  • the filter element 10 comprises a filter bellows 12 which is folded into folds 34 in a zigzag manner, with parallel fold edges 26 which follow each other in a longitudinal extent 14 of the bellows 12 and which are located between opposite end edges 22, 23 of the filter bellows 12 extend.
  • the filter bellows 12 has circumferentially a frame 28 with an outer edge 32, wherein in the web 31 of the frame 28 circumferentially openings 30 are provided, through which openings 30 sealing material of a seal 40 extends.
  • the seal 40 has two opposing sealing beads 41, 43 with sealing surfaces 42, 44th on so that an introduction of force via the two sealing surfaces 42, 44 on a sealing line of the web 31 of the frame 28 is laterally offset from the openings 30.
  • the introduction of force via the two sealing beads 41, 43 with the sealing surfaces 42, 44 takes place in particular between the openings 30 and the filter bellows 12 in the region of the web 31 which is free of openings.
  • the first sealing surface 42 is for sealing the clean side 52 of the filter element 10 against the upper housing part 1 12 and the second sealing surface 44 is provided for sealing the raw side 50 of the filter element 10 against the lower housing part 14 1.
  • the two sealing surfaces 42, 44 are arranged axially above or below the web 31 of the frame 28.

Landscapes

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

Abstract

La présente invention concerne un élément filtrant (10) pour filtrer un liquide, comprenant au moins un soufflet filtrant (12) qui présente selon l'invention un côté substance brute (50) et un côté substance purifiée (52) opposé. Le soufflet filtrant (12) est entouré en périphérie par un cadre (28) comportant un rebord (31) latéralement en saillie porteur de garniture d'étanchéité, des ouvertures (30) étant pratiquées dans le rebord (31), lesquelles s'étendent le long de l'arête extérieure (32), une garniture d'étanchéité (40) s'étendant sur le tour du rebord (31) et le matériau d'étanchéité de la garniture d'étanchéité (40) s'étendant à travers les ouvertures (30), et au moins une surface d'étanchéité (42, 44) de la garniture d'étanchéité (40) étant disposée sur un côté plat du rebord (31) en étant décalée latéralement vers les ouvertures (30). L'invention concerne également un système de filtre (100) équipé d'un tel élément filtrant (10) échangeable.
PCT/EP2017/070096 2016-09-16 2017-08-08 Élément filtrant et système de filtre WO2018050367A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020197006364A KR20190043547A (ko) 2016-09-16 2017-08-08 필터 엘리먼트 및 필터 시스템
DE112017004660.2T DE112017004660A5 (de) 2016-09-16 2017-08-08 Filterelement und Filtersystem
CN201780056978.1A CN109689181B (zh) 2016-09-16 2017-08-08 过滤元件和过滤系统

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016011158.5 2016-09-16
DE102016011158.5A DE102016011158A1 (de) 2016-09-16 2016-09-16 Filterelement und Filtersystem

Publications (1)

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WO2018050367A1 true WO2018050367A1 (fr) 2018-03-22

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KR (1) KR20190043547A (fr)
CN (1) CN109689181B (fr)
DE (2) DE102016011158A1 (fr)
WO (1) WO2018050367A1 (fr)

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WO2021018995A1 (fr) 2019-07-31 2021-02-04 Mann+Hummel Gmbh Élément filtrant, filtre à air intérieur et procédé de production

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DE202019105324U1 (de) * 2019-09-25 2021-01-05 Sata Gmbh & Co. Kg Dichtungsanordnung für einen Filter, insbesondere einen Druckluftfilter und Filterelement für einen Filter
DE102020121710A1 (de) * 2020-08-19 2022-02-24 Mann+Hummel Gmbh Filtersystem und Filterelement
US20220126227A1 (en) * 2020-10-28 2022-04-28 Baldwin Filters, Inc. Gasket and frame assembly for air filter
DE102022106562A1 (de) 2022-03-21 2023-09-21 Mann+Hummel Gmbh Filterelement und Filtersystem

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CN102380272A (zh) * 2011-11-03 2012-03-21 长春科德宝·宝翎滤清器有限公司 一种滤芯以及制作该滤芯的方法
EP2679293A1 (fr) * 2004-03-24 2014-01-01 Donaldson Company, Inc. Purificateur d'air
DE102012019320A1 (de) * 2012-10-02 2014-04-03 Mann + Hummel Gmbh Flachfilterelement eines Filters, Filter und Stützeinrichtung eines Filters

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DE102015007968A1 (de) 2014-08-05 2016-02-11 Mann + Hummel Gmbh Filterelement und Verfahren zum Herstellen desselben
CN205435209U (zh) * 2015-12-15 2016-08-10 曼胡默尔滤清器（上海）有限公司 一种带有呼吸阀的车用空调滤芯

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EP2679293A1 (fr) * 2004-03-24 2014-01-01 Donaldson Company, Inc. Purificateur d'air
US20100192530A1 (en) * 2004-11-02 2010-08-05 Baldwin Filters, Inc. Fluted filter apparatus
DE102009056511A1 (de) 2009-12-02 2011-06-09 Mann+Hummel Gmbh Filterelement und Verfahren zum Herstellen eines Filterelements
CN102380272A (zh) * 2011-11-03 2012-03-21 长春科德宝·宝翎滤清器有限公司 一种滤芯以及制作该滤芯的方法
DE102012019320A1 (de) * 2012-10-02 2014-04-03 Mann + Hummel Gmbh Flachfilterelement eines Filters, Filter und Stützeinrichtung eines Filters

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Publication number Priority date Publication date Assignee Title
WO2021018995A1 (fr) 2019-07-31 2021-02-04 Mann+Hummel Gmbh Élément filtrant, filtre à air intérieur et procédé de production

Also Published As

Publication number Publication date
KR20190043547A (ko) 2019-04-26
CN109689181A (zh) 2019-04-26
DE102016011158A1 (de) 2018-03-22
CN109689181B (zh) 2022-12-09
DE112017004660A5 (de) 2019-06-13

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