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WO2017207203A1 - Filter element for gas filtration - Google Patents

Filter element for gas filtration Download PDF

Info

Publication number
WO2017207203A1
WO2017207203A1 PCT/EP2017/060595 EP2017060595W WO2017207203A1 WO 2017207203 A1 WO2017207203 A1 WO 2017207203A1 EP 2017060595 W EP2017060595 W EP 2017060595W WO 2017207203 A1 WO2017207203 A1 WO 2017207203A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter element
filter
medium body
frame
filter medium
Prior art date
Application number
PCT/EP2017/060595
Other languages
German (de)
French (fr)
Inventor
Robert Hasenfratz
Thomas Löhl
Konrad Wieser
Joachim-Paul Krieger
Thomas Sieber
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 DE112017002720.9T priority Critical patent/DE112017002720A5/en
Publication of WO2017207203A1 publication Critical patent/WO2017207203A1/en

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
    • B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
    • B01D46/005—Crossflow filtration, i.e. having an inlet and two outlets
    • 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
    • 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
    • F02M35/0212—Multiple cleaners
    • F02M35/0215—Multiple cleaners arranged in parallel
    • 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
    • F02M35/02416—Fixing, mounting, supporting or arranging filter elements; Filter element cartridges
    • F02M35/02425—Support structures increasing the stability or stiffness of the filter element
    • 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
    • F02M35/02433—Special alignment with respect to the air intake flow, e.g. angled or in longitudinal flow direction

Definitions

  • the invention relates to a filter element, in particular for gas filtration, according to the preamble of claim 1.
  • a filter element for air filtration which has two separately formed filter medium body on a central support body, which are each designed as a folded filter and arranged on opposite sides of the support body.
  • the carrier body has at its end faces on an end plate, in each of which a zigzag-shaped receiving pattern is introduced, which serves to receive the folds of the filter medium body, whereby at the same time the wrinkles are stabilized.
  • the invention has the object of providing a filter element, which comprises a filter medium body on a filter element housing, assembly and service-friendly form.
  • the filter element according to the invention is preferably used for gas filtration, for example for filtration of the combustion air for an internal combustion engine. It is also a cleaning of fresh air into consideration, which cabins such as vehicle interiors is supplied. Furthermore, an application for the filtration of liquids is possible.
  • the filter element has a filter element housing which is a carrier of a filter medium body; Filter element housing and filter media body form a coherent unit.
  • the filter medium body is separated from the fluid to be cleaned by flows outside, so that the outside, the filter element housing facing away from the raw side and the filter element housing facing side forms the clean side of the filter medium body.
  • In the filter element housing is a clean room for receiving the purified fluid, wherein the clean room is limited by the filter medium body. From the clean room in the filter element housing, the purified fluid can be discharged via a discharge opening.
  • a frame On the outer circumference of the filter medium body, a frame is arranged, which is preferably fixed, possibly releasably connected to the filter medium body.
  • the frame on the filter medium body and a receiving pocket on the filter element housing are put into one another or inserted.
  • the connection of frame and receiving pocket on the filter element housing takes place in a detachable manner, so that both the assembly of the filter medium body on the filter element housing and the replacement of the filter medium body are simplified for service purposes.
  • the filter medium body can preferably be connected to the receiving pocket on the filter element housing as well as from the receiving pocket without tools or with only a small amount of tool insert.
  • the frame is placed on the receiving pocket, so that the frame surrounds the receiving pocket and surrounds the wall of the receiving pocket.
  • the frame is inserted into the receiving pocket and enclosed by the wall of the receiving pocket.
  • the filter medium body is inserted into the receiving pocket, whereas the frame on the filter medium body engages around the wall of the receiving pocket.
  • the frame is formed circumferentially and thus extends completely over the outer periphery of the filter medium body.
  • the frame only partially revolves and thus only extends over a part of the outer circumference of the filter medium body.
  • the frame on the outer periphery of the filter medium body and the receiving pocket are preferably connected in a flow-tight manner in order to prevent incorrect air flows on the clean side of the filter medium body and to improve the filtration performance of the filter element.
  • At least two receiving pockets are arranged on the filter element housing, which are each assigned a filter medium body.
  • the receiving pockets are preferably located on diametrically opposite sides of the filter element housing.
  • the filter media bodies inserted into the receiving pockets bound each one side of the clean room in the filter element housing.
  • the receiving pockets and the associated filter medium body are preferably located on diametrically opposite sides of the filter element housing, wherein a non-diametrical arrangement is also possible, for example, an angular offset arrangement in, for example, a 90 ° angle.
  • receiving pocket and more than one filter medium body are arranged, they preferably have the same structure, so that all receiving pockets are constructed the same and all the filter medium body including the surrounding frame are the same structure. This applies both to the geometric structure and to the size ratios, although embodiments are possible in which the receiving pockets and the filter medium body or the frame on the filter medium body differ from each other.
  • the frame is fastened by means of a sealing element on the outer circumference of the filter medium body.
  • the sealing element is thus the carrier of the frame and in turn arranged directly on the filter medium body.
  • the sealing element is molded on the filter medium body, foamed, applied as a sealing bead or the like, for example, so that a firm connection between the sealing element and the filter consists of medium body.
  • the connection between the sealing element and the frame is fixed and preferably flow-tight.
  • a receiving groove on the outer circumference of the filter medium body into which the frame protrudes.
  • the receiving groove is located either directly on the filter medium body or a component which is connected to the filter medium body, in particular on the sealing element.
  • the receiving groove is preferably formed open on the side facing away from the receiving pocket.
  • the frame can be slipped over the filter medium body for mounting and inserted into the receiving groove on the outer circumference of the filter medium body. During assembly with the filter element housing, the frame is then preferably detachably connected to the wall of the receiving pocket.
  • the filter medium body is formed cuboid.
  • the frame is preferably adapted to the outer periphery of the filter medium body and has a rectangular shape accordingly.
  • other geometry forms for the filter medium body come into consideration, for example, filter medium body with oval base cross-section.
  • the filter medium body is designed as a folded filter. However, it is also an embodiment as a block-shaped Filtrmedium- body into consideration.
  • the frame on the filter medium body and the receiving pocket on the filter element housing are positively connected.
  • the positive connection is generated, for example, in that in the frame at least one, preferably a plurality of recesses are introduced, in which the wall of the receiving pocket protrudes positively. Accordingly, a portion of the frame engages behind an associated portion of the wall of the receiving pocket and thus ensures in a form-fitting manner the frame and thus also the filter medium body on the filter element housing.
  • the invention further relates to a filter device which is provided with a filter element as described above.
  • the filter device has a filter housing for receiving the filter element.
  • FIG. 1 is a perspective view of a filter element with a filter element housing, which has on diametrically opposite sides in each case a filter medium body which is insertable into a respective receiving pocket on the filter element housing, each filter element body is enclosed by a circumferential, rectangular frame, Fig. 2 the Filter element according to FIG. 1, but with the frame in the mounted state on the filter medium body,
  • FIG. 3 shows a plan view of the filter element, with the filter medium bodies arranged on the central filter element housing,
  • Fig. 4 is a sectional view along section line IV-IV of Fig. 3
  • Fig. 5 is a sectional view taken along section line V-V of Fig. 4
  • Fig. 6 shows the detail VI of Fig. 5 in an enlarged view.
  • a filter element 1 for gas filtration which comprises a cuboid filter element housing 2 and two filter medium body 3, which are arranged on the diametrically opposite narrow sides of the filter element housing 2.
  • the filter element housing 2 encloses a clean room in which the cleaned Fluid is collected and discharged via a discharge opening 4 from the Filterelementgehause 2.
  • the Filtermediumkorper 3 are also cuboid and may optionally be formed fold-shaped, with a block-shaped design of the Filtermediumkorper 3 comes into consideration.
  • the receiving pocket 5 is formed as a rectangular circumferential wall which protrudes on Filterelementgehause 2 and is integrally formed with the preferably made of plastic filter element housing 2.
  • each filter medium body 3 On the outside of each filter medium body 3, a sealing element 6 runs, which is arranged immediately adjacent to the clean or downstream side of the filter medium body 3.
  • the sealing element 6 is firmly connected to the Filtermediumkorper 3, it is for example injected, foamed or applied as a sealing bead.
  • the sealing element 6 on the filter medium body 3 is also a carrier of a rectangular frame 7, which is placed on the filter medium body 3.
  • the frame 7 surrounds the wall of the receiving pocket 5 in the assembled state (FIGS. 3 to 6) and is connected in a form-fitting manner to the receiving pocket 5.
  • the Filtermediumkorper 3 projects into the receiving pocket 5 and is partially enclosed by the wall of the receiving pocket 5, whereas the frame 7, the receiving pocket 5 engages over.
  • the fluid to be cleaned is passed from the outside through the Filtermediumkorper 3, wherein the purified fluid is passed to the inner clean side via the receiving pockets 5 in the clean room in the filter element housing 2.
  • the clean side of Filtermediumkorper 3 thus limits the clean room in the filter element housing 2 in the region of the receiving pocket. 5
  • connection between the frame 7 and the wall of the receiving pocket 5 takes place in a positive but detachable manner.
  • the positive connection is produced by the fact that in the frame 7 on all its sides one or more recesses 8 are introduced and, as shown in Fig. 6, a shoulder of the wall the receiving pocket 5, which widens outwards, partially protrudes into the recess 8 and is positively engaged behind by a portion 7a of the frame 7.
  • FIG. 6 also shows that a receiving groove 9, into which a section of the frame 7 protrudes, is introduced into the sealing element 6, which is arranged on the outer circumference of the filter medium body 3.
  • the frame 7 has a C-shaped cross-section, wherein a leg of the C-shaped cross section forms the protruding into the receiving groove 9 section.
  • the receiving groove 9 is designed to be open to the filter element housing 2 side facing away.
  • Fig. 6 it can be seen that the sealing element 6 is supported on a circumferential shoulder 10 on the filter housing 2.
  • the shoulder 10 is formed by the wall of the receiving pocket 5 being widened outwards relative to the filter element housing 2.

Landscapes

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

Abstract

A filter element comprises a filter element housing and a filter medium member which defines a clean space in the filter element housing. A frame is arranged on the outer periphery of the filter medium member; the frame and a receiving pocket on the filter element housing are inserted into each other and removably connected to each other.

Description

Beschreibung  description
FILTERELEMENT ZUR GASFILTRATION FILTER ELEMENT FOR GAS FILTRATION
Technisches Gebiet Technical area
Die Erfindung bezieht sich auf ein Filterelement, insbesondere zur Gasfiltration, nach dem Oberbegriff des Anspruches 1 .  The invention relates to a filter element, in particular for gas filtration, according to the preamble of claim 1.
Stand der Technik State of the art
In der DE 10 201 1 083 657 A1 wird ein Filterelement zur Luftfiltration beschrieben, das an einem zentralen Trägerkörper zwei separat ausgebildete Filtermediumkörper aufweist, welche jeweils als Faltenfilter ausgeführt und an gegenüberliegenden Seiten des Trägerkörpers angeordnet sind. Der Trägerkörper weist an seinen Stirnseiten eine Stirnplatte auf, in die jeweils ein zickzackförmiges Aufnahmemuster eingebracht ist, das zur Aufnahme der Falten der Filtermediumkörper dient, wodurch zugleich die Falten stabilisiert werden. In DE 10 201 1 083 657 A1 a filter element for air filtration is described, which has two separately formed filter medium body on a central support body, which are each designed as a folded filter and arranged on opposite sides of the support body. The carrier body has at its end faces on an end plate, in each of which a zigzag-shaped receiving pattern is introduced, which serves to receive the folds of the filter medium body, whereby at the same time the wrinkles are stabilized.
Offenbarung der Erfindung Disclosure of the invention
Der Erfindung liegt die Aufgabe zugrunde, ein Filterelement, welches einen Filter- mediumkörper an einem Filterelementgehäuse umfasst, montage- und servicefreundlich auszubilden.  The invention has the object of providing a filter element, which comprises a filter medium body on a filter element housing, assembly and service-friendly form.
Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Anspruches 1 gelöst. Die Unteransprüche geben zweckmäßige Weiterbildungen an. This object is achieved with the features of claim 1. The dependent claims indicate expedient developments.
Das erfindungsgemäße Filterelement wird bevorzugt zur Gasfiltration eingesetzt, beispielsweise zur Filtration der Verbrennungsluft für eine Brennkraftmaschine. Es kommt auch eine Reinigung von Frischluft in Betracht, welche Kabinen wie zum Beispiel Fahrzeuginnenräumen zugeführt wird. Des Weiteren ist auch eine Anwendung zur Filtration von Flüssigkeiten möglich. The filter element according to the invention is preferably used for gas filtration, for example for filtration of the combustion air for an internal combustion engine. It is also a cleaning of fresh air into consideration, which cabins such as vehicle interiors is supplied. Furthermore, an application for the filtration of liquids is possible.
Das Filterelement weist ein Filterelementgehäuse auf, das Träger eines Filtermediumkörpers ist; Filterelementgehäuse und Filtermediumkörper bilden eine zusammenhängende Einheit. Der Filtermediumkörper wird von dem zu reinigenden Fluid von außen angeströmt, so dass die außen liegende, dem Filterelementgehäuse abgewandte Seite die Rohseite und die dem Filterelementgehäuse zugewandte Seite die Reinseite des Filtermediumkörpers bildet. Im Filterelementgehäuse befindet sich ein Reinraum zur Aufnahme des gereinigten Fluids, wobei der Reinraum von dem Filter- mediumkörper begrenzt ist. Aus dem Reinraum im Filterelementgehäuse kann das gereinigte Fluid über eine Abströmöffnung abgeleitet werden. The filter element has a filter element housing which is a carrier of a filter medium body; Filter element housing and filter media body form a coherent unit. The filter medium body is separated from the fluid to be cleaned by flows outside, so that the outside, the filter element housing facing away from the raw side and the filter element housing facing side forms the clean side of the filter medium body. In the filter element housing is a clean room for receiving the purified fluid, wherein the clean room is limited by the filter medium body. From the clean room in the filter element housing, the purified fluid can be discharged via a discharge opening.
Am Außenumfang des Filtermediumkörpers ist ein Rahmen angeordnet, der vorzugsweise fest, gegebenenfalls lösbar mit dem Filtermediumkörper verbunden ist. Zur Mon- tage des Filtermediumkörpers am Filterelementgehäuse werden der Rahmen am Filtermediumkörper und eine Aufnahmetasche am Filterelementgehäuse ineinander gesetzt oder gesteckt. Die Verbindung von Rahmen und Aufnahmetasche am Filterelementgehäuse erfolgt in einer lösbaren Weise, so dass sowohl die Montage des Filtermediumkörpers am Filterelementgehäuse als auch der Austausch des Filtermediumkörpers zu Servicezwecken vereinfacht sind. Der Filtermediumkörper kann vorzugsweise ohne Werkzeug oder mit nur geringem Werkzeugeinsatz sowohl mit der Aufnahmetasche am Filterelementgehäuse verbunden als auch aus der Aufnahmetasche gelöst werden. On the outer circumference of the filter medium body, a frame is arranged, which is preferably fixed, possibly releasably connected to the filter medium body. For mounting the filter medium body on the filter element housing, the frame on the filter medium body and a receiving pocket on the filter element housing are put into one another or inserted. The connection of frame and receiving pocket on the filter element housing takes place in a detachable manner, so that both the assembly of the filter medium body on the filter element housing and the replacement of the filter medium body are simplified for service purposes. The filter medium body can preferably be connected to the receiving pocket on the filter element housing as well as from the receiving pocket without tools or with only a small amount of tool insert.
Vorzugsweise wird der Rahmen auf die Aufnahmetasche aufgesetzt, so dass der Rahmen die Aufnahmetasche umgreift und die Wandung der Aufnahmetasche umschließt. Prinzipiell kommt aber auch eine umgekehrte Ausführung in Betracht, bei der der Rahmen in die Aufnahmetasche eingesetzt und von der Wandung der Aufnahmetasche umschlossen ist. Gemäß einer vorteilhaften Ausführung ist der Filtermediumkörper in die Aufnahmetasche eingesetzt, wohingegen der Rahmen am Filtermediumkörper die Wandung der Aufnahmetasche umgreift. Preferably, the frame is placed on the receiving pocket, so that the frame surrounds the receiving pocket and surrounds the wall of the receiving pocket. In principle, however, is also a reverse design into consideration, in which the frame is inserted into the receiving pocket and enclosed by the wall of the receiving pocket. According to an advantageous embodiment, the filter medium body is inserted into the receiving pocket, whereas the frame on the filter medium body engages around the wall of the receiving pocket.
Gemäß einer weiteren vorteilhaften Ausführung ist der Rahmen umlaufend ausgebildet und erstreckt sich somit vollständig über den Außenumfang des Filtermediumkörpers. In einer alternativen Ausführung läuft der Rahmen nur teilweise um und erstreckt sich somit auch nur über einen Teil des Außenumfangs am Filtermediumkörper. Der Rahmen am Außenumfang des Filtermediumkörpers und die Aufnahmetasche sind vorzugsweise strömungsdicht verbunden, um Fehlluftströme an der Reinseite des Filtermediumkörpers zu vermeiden und die Filtrationsleistung des Filterelementes zu verbessern. According to a further advantageous embodiment, the frame is formed circumferentially and thus extends completely over the outer periphery of the filter medium body. In an alternative embodiment, the frame only partially revolves and thus only extends over a part of the outer circumference of the filter medium body. The frame on the outer periphery of the filter medium body and the receiving pocket are preferably connected in a flow-tight manner in order to prevent incorrect air flows on the clean side of the filter medium body and to improve the filtration performance of the filter element.
Gemäß noch einer weiteren vorteilhaften Ausführung sind an dem Filterelementgehäuse mindestens zwei Aufnahmetaschen angeordnet, denen jeweils ein Filtermediumkörper zugeordnet ist. Die Aufnahmetaschen befinden sich vorzugsweise an diametral gegenüberliegenden Seiten des Filterelementgehäuses. Die in die Aufnahmetaschen eingesetzten Filtermediumkörper begrenzen jeweils eine Seite des Reinraums im Filterelementgehäuse. Die Aufnahmetaschen und die zugeordneten Filtermediumkörper befinden sich vorzugsweise an diametral gegenüberliegenden Seiten des Filterelementgehäuses, wobei auch eine nicht-diametrale Anordnung in Betracht kommt, beispielsweise eine winkelversetzte Anordnung in zum Beispiel einem 90°-Winkel. Des Weiteren ist es auch möglich, mehr als zwei Aufnahmetaschen und Filtermediumkörper am Filterelementgehäuse vorzusehen, beispielsweise drei oder vier Aufnahmetaschen und Filtermediumkörper. According to yet another advantageous embodiment, at least two receiving pockets are arranged on the filter element housing, which are each assigned a filter medium body. The receiving pockets are preferably located on diametrically opposite sides of the filter element housing. The filter media bodies inserted into the receiving pockets bound each one side of the clean room in the filter element housing. The receiving pockets and the associated filter medium body are preferably located on diametrically opposite sides of the filter element housing, wherein a non-diametrical arrangement is also possible, for example, an angular offset arrangement in, for example, a 90 ° angle. Furthermore, it is also possible to provide more than two receiving pockets and filter media body on the filter element housing, for example, three or four receiving pockets and filter media body.
Sofern mehr als eine Aufnahmetasche und mehr als ein Filtermediumkörper angeordnet sind, weisen diese vorzugsweise den gleichen Aufbau auf, so dass sämtliche Aufnahmetaschen gleich aufgebaut und sämtliche Filtermediumkörper einschließlich der umlaufenden Rahmen gleich aufgebaut sind. Dies gilt sowohl für den geometrischen Aufbau als auch für die Größenverhältnisse, wenngleich auch Ausführungen möglich sind, bei denen sich die Aufnahmetaschen und die Filtermediumkörper bzw. die Rahmen am Filtermediumkörper voneinander unterscheiden. If more than one receiving pocket and more than one filter medium body are arranged, they preferably have the same structure, so that all receiving pockets are constructed the same and all the filter medium body including the surrounding frame are the same structure. This applies both to the geometric structure and to the size ratios, although embodiments are possible in which the receiving pockets and the filter medium body or the frame on the filter medium body differ from each other.
Gemäß einer weiteren vorteilhaften Ausführung ist der Rahmen mithilfe eines Dichtungselementes am Außenumfang des Filtermediumkörpers befestigt. Das Dichtungselement ist somit Träger des Rahmens und seinerseits unmittelbar am Filter- mediumkörper angeordnet. Das Dichtungselement wird beispielsweise am Filtermediumkörper angespritzt, aufgeschäumt, als Dichtraupe aufgebracht oder dergleichen, so dass eine feste Verbindung zwischen dem Dichtungselement und dem Filter- mediumkörper besteht. Auch die Verbindung zwischen dem Dichtungselement und dem Rahmen ist fest und vorzugsweise strömungsdicht. According to a further advantageous embodiment, the frame is fastened by means of a sealing element on the outer circumference of the filter medium body. The sealing element is thus the carrier of the frame and in turn arranged directly on the filter medium body. The sealing element is molded on the filter medium body, foamed, applied as a sealing bead or the like, for example, so that a firm connection between the sealing element and the filter consists of medium body. The connection between the sealing element and the frame is fixed and preferably flow-tight.
Es kann des Weiteren zweckmäßig sein, am Außenumfang des Filtermediumkörpers eine Aufnahmenut anzuordnen, in die der Rahmen einragt. Die Aufnahmenut befindet sich entweder unmittelbar am Filtermediumkörper oder einem Bauteil, das mit dem Filtermediumkörper verbunden ist, insbesondere an dem Dichtungselement. Die Aufnahmenut ist vorzugsweise auf der der Aufnahmetasche abgewandten Seite offen ausgebildet. Der Rahmen kann zur Montage über den Filtermediumkörper gestülpt und in die Aufnahmenut am Außenumfang des Filtermediumkörpers eingeschoben werden. Bei der Montage mit dem Filterelementgehäuse wird der Rahmen anschließend vorzugsweise mit der Wandung der Aufnahmetasche lösbar verbunden. It may furthermore be expedient to arrange a receiving groove on the outer circumference of the filter medium body into which the frame protrudes. The receiving groove is located either directly on the filter medium body or a component which is connected to the filter medium body, in particular on the sealing element. The receiving groove is preferably formed open on the side facing away from the receiving pocket. The frame can be slipped over the filter medium body for mounting and inserted into the receiving groove on the outer circumference of the filter medium body. During assembly with the filter element housing, the frame is then preferably detachably connected to the wall of the receiving pocket.
Gemäß einer weiteren vorteilhaften Ausführung ist der Filtermediumkörper quader- förmig ausgebildet. Der Rahmen ist vorzugsweise an den Außenumfang des Filtermediumkörpers angepasst und weist entsprechend eine Rechteckform auf. In alternativer Ausführung kommen auch sonstige Geometrieformen für den Filtermediumkörper in Betracht, beispielsweise Filtermediumkörper mit ovalem Grundquerschnitt. Gemäß einer weiteren vorteilhaften Ausführung ist der Filtermediumkörper als Faltenfilter ausgebildet. Es kommt aber auch eine Ausführung als blockförmiger Filtrmedium- körper in Betracht. According to a further advantageous embodiment of the filter medium body is formed cuboid. The frame is preferably adapted to the outer periphery of the filter medium body and has a rectangular shape accordingly. In an alternative embodiment, other geometry forms for the filter medium body come into consideration, for example, filter medium body with oval base cross-section. According to a further advantageous embodiment, the filter medium body is designed as a folded filter. However, it is also an embodiment as a block-shaped Filtrmedium- body into consideration.
Gemäß noch einer weiteren zweckmäßigen Ausführung sind der Rahmen am Filter- mediumkörper und die Aufnahmetasche am Filterelementgehäuse formschlüssig verbunden. Für einen Austausch des Filtermediumkörpers kann der Formschluss gelöst werden, so dass der Filtermediumkörper aus der Aufnahmetasche am Filterelementgehäuse herausgenommen werden kann. Der Formschluss wird beispielsweise dadurch erzeugt, dass in den Rahmen mindestens eine, vorzugsweise mehrere Ausnehmungen eingebracht sind, in die die Wandung der Aufnahmetasche formschlüssig einragt. Dementsprechend hintergreift ein Abschnitt am Rahmen einen zugeordneten Abschnitt der Wandung der Aufnahmetasche und sichert somit in formschlüssiger Weise den Rahmen und damit auch den Filtermediumkörper am Filterelementgehäuse. Die Erfindung bezieht sich des Weiteren auf eine Filtereinrichtung, die mit einem vorbeschriebenen Filterelement versehen ist. Die Filtereinrichtung weist ein Filtergehäuse zur Aufnahme des Filterelements auf. Kurze Beschreibung der Zeichnungen According to yet another expedient embodiment, the frame on the filter medium body and the receiving pocket on the filter element housing are positively connected. For an exchange of the filter medium body of the positive connection can be solved so that the filter medium body can be removed from the receiving pocket on the filter element housing. The positive connection is generated, for example, in that in the frame at least one, preferably a plurality of recesses are introduced, in which the wall of the receiving pocket protrudes positively. Accordingly, a portion of the frame engages behind an associated portion of the wall of the receiving pocket and thus ensures in a form-fitting manner the frame and thus also the filter medium body on the filter element housing. The invention further relates to a filter device which is provided with a filter element as described above. The filter device has a filter housing for receiving the filter element. Brief description of the drawings
Weitere Vorteile und zweckmäßige Ausführungen sind den weiteren Ansprüchen, der Figurenbeschreibung und den Zeichnungen zu entnehmen. Es zeigen:  Further advantages and expedient embodiments can be taken from the further claims, the description of the figures and the drawings. Show it:
Fig. 1 in perspektivischer Ansicht ein Filterelement mit einem Filterelementgehäuse, das an diametral gegenüberliegenden Seiten jeweils einen Filtermediumkörper aufweist, der in jeweils eine Aufnahmetasche am Filterelementgehäuse einsetzbar ist, wobei jeder Filterelementkörper von einem umlaufenden, rechteck- förmigen Rahmen eingefasst ist, Fig. 2 das Filterelement gemäß Fig. 1 , jedoch mit dem Rahmen im montierten Zustand am Filtermediumkörper, 1 is a perspective view of a filter element with a filter element housing, which has on diametrically opposite sides in each case a filter medium body which is insertable into a respective receiving pocket on the filter element housing, each filter element body is enclosed by a circumferential, rectangular frame, Fig. 2 the Filter element according to FIG. 1, but with the frame in the mounted state on the filter medium body,
Fig. 3 eine Draufsicht auf das Filterelement, mit den am zentralen Filterelementgehäuse angeordneten Filtermediumkörpern, 3 shows a plan view of the filter element, with the filter medium bodies arranged on the central filter element housing,
Fig. 4 eine Schnittdarstellung gemäß Schnittlinie IV-IV aus Fig. 3, Fig. 5 eine Schnittdarstellung gemäß Schnittlinie V-V aus Fig. 4, Fig. 6 das Detail VI aus Fig. 5 in vergrößerter Ansicht. Fig. 4 is a sectional view along section line IV-IV of Fig. 3, Fig. 5 is a sectional view taken along section line V-V of Fig. 4, Fig. 6 shows the detail VI of Fig. 5 in an enlarged view.
In den Figuren sind gleiche Bauteile mit gleichen Bezugszeichen versehen. In the figures, the same components are provided with the same reference numerals.
Ausführungsform(en) der Erfindung Embodiment (s) of the invention
In den Figuren ist ein Filterelement 1 zur Gasfiltration dargestellt, das ein quaderförmiges Filterelementgehäuse 2 sowie zwei Filtermediumkörper 3 umfasst, die an den diametral gegenüberliegenden Schmalseiten des Filterelementgehäuses 2 angeordnet sind. Das Filterelementgehäuse 2 umschließt einen Reinraum, in dem das gereinigte Fluid gesammelt und über eine Abströmöffnung 4 aus dem Filterelementgehause 2 abgeleitet wird. Die Filtermediumkorper 3 sind ebenfalls quaderförmig ausgebildet und können gegebenenfalls faltenförmig ausgebildet sein, wobei auch eine blockförmige Ausführung der Filtermediumkorper 3 in Betracht kommt. In the figures, a filter element 1 for gas filtration is shown, which comprises a cuboid filter element housing 2 and two filter medium body 3, which are arranged on the diametrically opposite narrow sides of the filter element housing 2. The filter element housing 2 encloses a clean room in which the cleaned Fluid is collected and discharged via a discharge opening 4 from the Filterelementgehause 2. The Filtermediumkorper 3 are also cuboid and may optionally be formed fold-shaped, with a block-shaped design of the Filtermediumkorper 3 comes into consideration.
An den beiden gegenüberliegenden Außenseiten befindet sich jeweils eine Aufnahmetasche 5 am Filterelementgehause 2, in die jeweils ein Filtermediumkorper 3 einsetzbar ist. Die Aufnahmetasche 5 ist als rechteckförmig umlaufende Wandung ausgebildet, die am Filterelementgehause 2 übersteht und einteilig mit dem vorzugsweise aus Kunststoff gefertigten Filterelementgehause 2 ausgebildet ist. At the two opposite outer sides is in each case a receiving pocket 5 on Filterelementgehause 2, in each of which a Filtermediumkorper 3 is used. The receiving pocket 5 is formed as a rectangular circumferential wall which protrudes on Filterelementgehause 2 and is integrally formed with the preferably made of plastic filter element housing 2.
An der Außenseite jedes Filtermediumkörpers 3 läuft ein Dichtungselement 6 um, das unmittelbar benachbart zur Rein- bzw. Abströmseite am Filtermediumkorper 3 angeordnet ist. Das Dichtungselement 6 ist fest mit dem Filtermediumkorper 3 verbunden, es wird beispielsweise angespritzt, aufgeschäumt oder als Dichtraupe aufgebracht. On the outside of each filter medium body 3, a sealing element 6 runs, which is arranged immediately adjacent to the clean or downstream side of the filter medium body 3. The sealing element 6 is firmly connected to the Filtermediumkorper 3, it is for example injected, foamed or applied as a sealing bead.
Das Dichtungselement 6 am Filtermediumkorper 3 ist außerdem Träger eines rechteck- förmigen Rahmens 7, der auf den Filtermediumkorper 3 aufgesetzt ist. Der Rahmen 7 umgreift im montierten Zustand (Fig. 3 bis 6) die Wandung der Aufnahmetasche 5 und ist formschlüssig mit der Aufnahmetasche 5 verbunden. Im montierten Zustand ragt somit der Filtermediumkorper 3 in die Aufnahmetasche 5 ein und ist teilweise von der Wandung der Aufnahmetasche 5 umschlossen, wohingegen der Rahmen 7 die Aufnahmetasche 5 übergreift. Während der Filtration wird das zu reinigende Fluid von außen durch die Filtermediumkorper 3 hindurchgeleitet, wobei das gereinigte Fluid an der innen liegenden Reinseite über die Aufnahmetaschen 5 in den Reinraum im Filterelementgehäuse 2 geleitet wird. Die Reinseite der Filtermediumkorper 3 begrenzt somit den Reinraum im Filterelementgehäuse 2 im Bereich der Aufnahmetasche 5. The sealing element 6 on the filter medium body 3 is also a carrier of a rectangular frame 7, which is placed on the filter medium body 3. The frame 7 surrounds the wall of the receiving pocket 5 in the assembled state (FIGS. 3 to 6) and is connected in a form-fitting manner to the receiving pocket 5. In the assembled state thus the Filtermediumkorper 3 projects into the receiving pocket 5 and is partially enclosed by the wall of the receiving pocket 5, whereas the frame 7, the receiving pocket 5 engages over. During filtration, the fluid to be cleaned is passed from the outside through the Filtermediumkorper 3, wherein the purified fluid is passed to the inner clean side via the receiving pockets 5 in the clean room in the filter element housing 2. The clean side of Filtermediumkorper 3 thus limits the clean room in the filter element housing 2 in the region of the receiving pocket. 5
Die Verbindung zwischen dem Rahmen 7 und der Wandung der Aufnahmetasche 5 er- folgt in einer formschlüssigen, jedoch lösbaren Weise. Der Formschluss wird dadurch hergestellt, dass in den Rahmen 7 an all seinen Seiten eine bzw. mehrere Ausnehmungen 8 eingebracht sind und, wie Fig. 6 zu entnehmen, ein Absatz der Wandung der Aufnahmetasche 5, die sich nach außen erweitert, teilweise in die Ausnehmung 8 einragt und formschlüssig von einem Abschnitt 7a des Rahmens 7 hintergriffen wird. The connection between the frame 7 and the wall of the receiving pocket 5 takes place in a positive but detachable manner. The positive connection is produced by the fact that in the frame 7 on all its sides one or more recesses 8 are introduced and, as shown in Fig. 6, a shoulder of the wall the receiving pocket 5, which widens outwards, partially protrudes into the recess 8 and is positively engaged behind by a portion 7a of the frame 7.
Fig. 6 ist außerdem zu entnehmen, dass in das Dichtungselement 6, das am Außen- umfang des Filtermediumkörpers 3 angeordnet ist, eine Aufnahmenut 9 eingebracht ist, in die ein Abschnitt des Rahmens 7 hineinragt. Der Rahmen 7 weist einen C-förmigen Querschnitt auf, wobei ein Schenkel des C-förmigen Querschnittes den in die Aufnahmenut 9 hineinragenden Abschnitt bildet. Die Aufnahmenut 9 ist zu der dem Filterelementgehäuse 2 abgewandten Seite hin offen ausgeführt. FIG. 6 also shows that a receiving groove 9, into which a section of the frame 7 protrudes, is introduced into the sealing element 6, which is arranged on the outer circumference of the filter medium body 3. The frame 7 has a C-shaped cross-section, wherein a leg of the C-shaped cross section forms the protruding into the receiving groove 9 section. The receiving groove 9 is designed to be open to the filter element housing 2 side facing away.
Ebenfalls Fig. 6 ist zu entnehmen, dass das Dichtungselement 6 sich an einer umlaufenden Schulter 10 am Filtergehäuse 2 abstützt. Die Schulter 10 ist dadurch gebildet, dass die Wandung der Aufnahmetasche 5 gegenüber dem Filterelementgehäuse 2 nach außen erweitert ist. Also, Fig. 6 it can be seen that the sealing element 6 is supported on a circumferential shoulder 10 on the filter housing 2. The shoulder 10 is formed by the wall of the receiving pocket 5 being widened outwards relative to the filter element housing 2.

Claims

Ansprüche Expectations
1 . Filterelement, insbesondere zur Gasfiltration, beispielsweise für einen Luftfilter, mit mindestens einem Filtermediumkörper (3), der an einem Filterelementgehäuse (2) angeordnet ist und einen Reinraum im Filterelementgehäuse (2) begrenzt, aus dem das gereinigte Fluid über mindestens eine Abströmöffnung (4) ableitbar ist, dadurch gekennzeichnet, dass am Außenumfang des Filtermediumkörpers (3) ein zumindest teilweise umlaufender Rahmen (7) angeordnet ist, wobei der Rahmen (7) am Filtermediumkörper (3) und eine Aufnahmetasche (5) am Filterelementgehäuse (2) ineinander gesetzt und lösbar miteinander verbunden sind. 1 . Filter element, in particular for gas filtration, for example for an air filter, with at least one filter medium body (3) which is arranged on a filter element housing (2) and delimits a clean space in the filter element housing (2), from which the cleaned fluid flows via at least one outflow opening (4). can be derived, characterized in that an at least partially circumferential frame (7) is arranged on the outer circumference of the filter medium body (3), the frame (7) on the filter medium body (3) and a receiving pocket (5) on the filter element housing (2) being placed one inside the other and are detachably connected to each other.
2. Filterelement nach Anspruch 1 , dadurch gekennzeichnet, dass am Filterelementgehäuse (2) mindestens zwei Aufnahmetaschen (5) angeordnet sind, denen jeweils ein Filtermediumkörper (3) zugeordnet ist. 2. Filter element according to claim 1, characterized in that at least two receiving pockets (5) are arranged on the filter element housing (2), each of which is assigned a filter medium body (3).
3. Filterelement nach Anspruch 2, dadurch gekennzeichnet, dass zwei Aufnahmetaschen (5) an diametral gegenüberliegenden Seiten des Filterelementgehäuses (2) angeordnet sind. 3. Filter element according to claim 2, characterized in that two receiving pockets (5) are arranged on diametrically opposite sides of the filter element housing (2).
4. Filterelement nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Filtermediumkörper (3) zumindest im Wesentlichen gleich aufgebaut sind. 4. Filter element according to claim 2 or 3, characterized in that the filter medium bodies (3) are constructed at least essentially the same.
5. Filterelement nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Rahmen (7) mithilfe eines Dichtungselements (6) am Außenumfang des Filter- mediumkörpers (3) befestigt ist. 5. Filter element according to one of claims 1 to 4, characterized in that the frame (7) is attached to the outer circumference of the filter medium body (3) using a sealing element (6).
6. Filterelement nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Rahmen (7) in eine Aufnahmenut (9) am Außenumfang des Filtermediumkörpers (3) einragt. 6. Filter element according to one of claims 1 to 5, characterized in that the frame (7) projects into a receiving groove (9) on the outer circumference of the filter medium body (3).
7. Filterelement nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Rahmen (7) rechteckförmig ausgebildet und auf den quaderförmigen Filtermediumkörper (3) aufgesetzt ist. 7. Filter element according to one of claims 1 to 6, characterized in that the frame (7) is rectangular and is placed on the cuboid filter medium body (3).
8. Filterelement nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Rahmen (7) am Filtermediumkörper (3) und die Aufnahmetasche (5) am Filterelementgehäuse (2) formschlüssig verbunden sind. 8. Filter element according to one of claims 1 to 7, characterized in that the frame (7) on the filter medium body (3) and the receiving pocket (5) on the filter element housing (2) are positively connected.
9. Filterelement nach Anspruch 8, dadurch gekennzeichnet, dass in den Rahmen (7) mindestens eine Ausnehmung (8) eingebracht ist, in die die Wandung der Aufnahmetasche (5) formschlüssig einragt. 9. Filter element according to claim 8, characterized in that at least one recess (8) is made in the frame (7), into which the wall of the receiving pocket (5) protrudes in a form-fitting manner.
10. Filtereinrichtung mit einem Filterelement (1 ) nach einem der Ansprüche 1 bis 9 und mit einem Filtergehäuse zur Aufnahme des Filterelements (2). 10. Filter device with a filter element (1) according to one of claims 1 to 9 and with a filter housing for receiving the filter element (2).
PCT/EP2017/060595 2016-05-30 2017-05-04 Filter element for gas filtration WO2017207203A1 (en)

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