WO1997000113A1 - Filter cartridge - Google Patents

Filter cartridge Download PDF

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Publication number
WO1997000113A1
WO1997000113A1 PCT/EP1996/002235 EP9602235W WO9700113A1 WO 1997000113 A1 WO1997000113 A1 WO 1997000113A1 EP 9602235 W EP9602235 W EP 9602235W WO 9700113 A1 WO9700113 A1 WO 9700113A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
end plate
filter cartridge
sealing
sealing element
Prior art date
Application number
PCT/EP1996/002235
Other languages
German (de)
French (fr)
Inventor
Heinz Müller
Original Assignee
Filterwerk 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 Filterwerk Mann & Hummel Gmbh filed Critical Filterwerk Mann & Hummel Gmbh
Priority to EP96919804A priority Critical patent/EP0836525A1/en
Priority to JP9502546A priority patent/JPH11508180A/en
Priority to BR9608355A priority patent/BR9608355A/en
Publication of WO1997000113A1 publication Critical patent/WO1997000113A1/en

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
    • 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
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411—Filter cartridges
    • B01D46/2414—End caps including additional functions or special forms
    • 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
    • B01D2271/027—Radial sealings

Definitions

  • the invention relates to a filter cartridge in particular for an intake air filter of an internal combustion engine according to the preamble of the main claim.
  • a filter cartridge of this type is described in DE 88 05 049 Ul.
  • such filter cartridges have the disadvantage that the outer edge of the support and sealing ring can detach from the filter paper web in cases of extreme stress, since there is only a non-positive connection there. There is then a direct connection between the unfiltered air inlet and the clean air outlet, the passage cross section of which is small, but which can nevertheless result in malfunctions or increased wear on the downstream internal combustion engine.
  • DE-OS 27 38 086 shows a filter cartridge consisting of a filter material part and a flange part cast thereon from a pourable, hardened material e.g. There is plastic or rubber, which remains flexible after curing.
  • the filter material is embedded in the flange material in the end area.
  • a disadvantage of this known filter cartridge is that a casting mold is required for casting on the flange part, which results in a long cycle time and therefore low productivity in connection with the relatively slow curing.
  • the invention has for its object to avoid the disadvantages mentioned and to create a filter cartridge that consists of a few parts or components and at the same time ensures a reliable seal between the raw air side and clean air side.
  • the main advantage of the invention is the fact that the end plate, in which the sealing element is already integrated, is connected directly to the filter body, that is, the connection is made by melting the end plate and pressing it into the filter body. Due to the surface structure of the filter body or the zigzag-shaped pleated filter material, an intimate and reliable connection between the end plate and the filter body is achieved.
  • the end plate consists of a mixture of polypropylene and elastomer, which is also known under the term Santoprene, or of a mixture of polyamide and elastomer.
  • the advantage of this material is that it changes from rigid to pasty when heated and can thus be fused with the filter paper body.
  • the material shows a soft elastic property that is suitable for the fact that the washer can also be used as a sealing element.
  • the sealing element consists of a lip seal which, for example, has a plurality of sealing grooves.
  • a kind of labyrinth seal can thereby be achieved.
  • the arrangement of sealing grooves has the advantage that the elasticity behavior can be set exactly.
  • the end plate is an injection molded part and can be produced in a design using the so-called 2-component process. This means that plastics with different properties are melted together in a single operation.
  • the sealing element can consist of a plastic that has particularly good sealing properties.
  • the element to be fused with the filter body can consist of a plastic which has particularly good adhesive properties.
  • a further development of the invention provides for the sealing element to be arranged axially or radially. While the axial sealing of a filter cartridge represents the previously usual sealing, the radial sealing has the advantage that length tolerances of the filter cartridge can be compensated for more easily.
  • FIG. 1 a half section of an air filter with a filter cartridge
  • FIG. 1b shows a variant of an air filter with a filter cartridge
  • FIG. 2 shows a sealing profile with a cavity
  • Figure 3 shows a sealing profile with an open edge seal.
  • the embodiment of the air filter consists of an air filter housing 10 which is closed with a cover 11.
  • the filter housing has a raw air inlet 12 and a clean air outlet 13.
  • Inside the filter housing there is a filter cartridge 14 which is provided with an end plate 15 at its upper end and with an end plate 16 at the lower end.
  • the filter cartridge consists essentially of a zigzag folded filter paper 17. Both the end plate 15 and the End plate 16 consists in particular of Santoprene, a combination of polypropylene and an elastomeric material.
  • sealing lips are formed on the lower end disk 16. These sealing lips 18 have sealing grooves 19, 20 which contribute to an increase in the sealing effect.
  • the end disks are heated during assembly with the filter paper 17 and melted into the paper bellows and connected to it.
  • FIG. 1b also shows sealing lips 21. These provide a radial seal on the attachment 22 of the clean air outlet 13. If the end plate 16 is produced, for example, in a two-component injection molding process, it is expedient to design the first component as an easily meltable flat plate and to provide the second component for the sealing area.
  • FIG. 2 shows an air filter cartridge in which a sealing profile is arranged on the end plate 16, which brings about both a radial and an axial seal.
  • This sealing profile is produced in the so-called gas internal pressure process, that is to say the cavity 23 of the profile seal is created during the injection molding process by blowing in gas. This results in a seal that can be adjusted in terms of elasticity to the requirements regarding the stability of the filter insert.
  • Both TPE and polyamide are suitable as sealing or end plate material.
  • Figure 3 shows a variant.
  • the sealing profile is an open profile.
  • the seal effects both a radial and an axial seal or a seal in the axial direction and a position stabilization of the filter cartridge 14 in the radial direction.
  • both functions that is to say the sealing functions, the position stabilization are optimally fulfilled.

Landscapes

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

Abstract

The invention concerns a filter cartridge, in particular for the intake air filter of an internal combustion engine. The filter cartridge comprises a hollow-cylindrical filter body (14) provided at at least one end with an end plate (16) comprising a sealing element (18). The end plate (16) is directly connected to the filter body (14).

Description

Filterpatrone Filter cartridge
Die Erfindung betrifft eine Filterpatrone insbesondere für einen Ansaugluftfilter einer Brennkraftmaschine nach dem Oberbegriff des Hauptanspruchs.The invention relates to a filter cartridge in particular for an intake air filter of an internal combustion engine according to the preamble of the main claim.
Eine Filterpatrone dieser Art wird in dem DE 88 05 049 Ul beschrieben. Derartige Filterpatronen weisen jedoch den Nachteil auf, daß sich in Fällen extremer Beanspruchung der Außenrand des Stütz- und Dichtringes von der Filterpapierbahn lösen kann, da dort nur eine kraftschlüssige Verbindung vorhanden ist. Es kommt dann eine unmittelbare Verbindung zwischen dem Rohlufteinlaß und dem Reinluftauslaß zustande, deren Durchtrittsquerschnitt zwar klein ist, die aber dennoch Störungen oder erhöhten Verschleiß der nachgeordneten Brennkraftmaschine zur Folge haben kann.A filter cartridge of this type is described in DE 88 05 049 Ul. However, such filter cartridges have the disadvantage that the outer edge of the support and sealing ring can detach from the filter paper web in cases of extreme stress, since there is only a non-positive connection there. There is then a direct connection between the unfiltered air inlet and the clean air outlet, the passage cross section of which is small, but which can nevertheless result in malfunctions or increased wear on the downstream internal combustion engine.
Die DE-OS 27 38 086 zeigt eine Filterpatrone, die aus einem Filtermaterialteil und einem daran angegossenen Flanschteil aus einem gießfähigen, aushärteten Material z.B. Kunststoff oder Gummi besteht, welches nach dem Aushärten flexibel bleibt.DE-OS 27 38 086 shows a filter cartridge consisting of a filter material part and a flange part cast thereon from a pourable, hardened material e.g. There is plastic or rubber, which remains flexible after curing.
Das Filtermaterial ist im Endbereich in das Flanschmaterial eingebettet. Um hier eine sichere Verbindung zu schaffen wird vorgeschlagen, das Filtermaterial mit einer Lochung zu versehen, so daß beim Angießen des Flanschteils das flüssige Flanschmaterial durch die Löcher im Filtermaterial fließt und so eine Zapfenverbindung zwischen dem Filtermaterial und dem Flanschmaterial herstellt.The filter material is embedded in the flange material in the end area. In order to create a secure connection here, it is proposed to provide the filter material with a perforation, so that when the flange part is cast on, the liquid flange material flows through the holes in the filter material and thus produces a pin connection between the filter material and the flange material.
Als nachteilig wird bei dieser bekannten Filterpatrone angesehen, daß für das Angießen des Flanschteils eine Gießform benötigt wird, was im Zusammenhang mit der relativ langsamen Aushärung eine lange Taktzeit und damit eine geringe Produktivität ergibt.A disadvantage of this known filter cartridge is that a casting mold is required for casting on the flange part, which results in a long cycle time and therefore low productivity in connection with the relatively slow curing.
Ein weiterer Nachteil ist auch darin zu sehen, daß der Filterpapierkörper mit einer Lochung versehen werden muß, die in einem zusätzlichen Arbeitsgang eingebracht wird und außerdem bei nicht vollständigem Ausgießen zu einem Kurzschluß zwischen der Rohluftseite und der Reinluftseite führt.Another disadvantage is the fact that the filter paper body must be provided with a perforation, which is introduced in an additional operation and also leads to a short circuit between the raw air side and the clean air side when the pouring is not complete.
Es ist ferner aus der DE 38 38 540 eine Filterpatrone bekannt, die eine Endscheibe aus einem Dichtmaterial aufweist. Diese Endscheibe wird mittels eines speziellen Klebers mit dem Filterpapierkörper verbunden. Außerdem ist die Endscheibe derart gestaltet, daß eine Verzahnung zwischen Kleber und Endscheibe erfolgt. Damit zeigt sich jedoch auch schon der Nachteil der darin zu sehen ist, daß die Enscheibe ein kompliziertes und aufwendig herzustellendes Bauteil ist.It is also known from DE 38 38 540 a filter cartridge which has an end plate made of a sealing material. This end plate is attached with a special adhesive Filter paper body connected. In addition, the end plate is designed in such a way that the teeth and the end plate are interlocked. However, this also shows the disadvantage that it can be seen in the fact that the washer is a complicated and complex component to manufacture.
Der Erfindung liegt die Aufgabe zugrunde, die genannten Nachteile zu vermeiden und eine Filterpatrone zu schaffen, die aus wenigen Bauteilen bzw. Komponenten besteht und gleichzeitig eine zuverlässige Abdichtung zwischen Rohluftseite und Reinluftseite gewährleistet.The invention has for its object to avoid the disadvantages mentioned and to create a filter cartridge that consists of a few parts or components and at the same time ensures a reliable seal between the raw air side and clean air side.
Diese Aufgabe wird ausgehend von dem Oberbegriff des Hauptanspruchs durch dessen kennzeichnenden Merkmale gelöst.This object is achieved on the basis of the preamble of the main claim by its characterizing features.
Der wesentliche Vorteil der Erfindung ist darin zu sehen, daß die Endscheibe in welche bereits das Dichtelement integriert ist, unmittelbar mit dem Filterkörper verbunden wird, das heißt, die Verbindung erfolgt durch Aufschmelzen der Endscheibe und Einpressen in den Filterkörper. Aufgrund der Oberflächenstruktur des Filterkörpers bzw. des zick-zack-fbrmig gefalteten Filtermaterials wird eine innige und zuverlässige Verbindung zwischen Endscheibe und Filterkörper erzielt.The main advantage of the invention is the fact that the end plate, in which the sealing element is already integrated, is connected directly to the filter body, that is, the connection is made by melting the end plate and pressing it into the filter body. Due to the surface structure of the filter body or the zigzag-shaped pleated filter material, an intimate and reliable connection between the end plate and the filter body is achieved.
Gemäß einer Weiterbildung der Erfindung besteht die Endscheibe aus einer Mischung von Polypropylen und Elastomer, welche auch unter dem Begriff Santoprene bekannt ist oder aus einer Mischung von Polyamid und Elastomer.According to a development of the invention, the end plate consists of a mixture of polypropylene and elastomer, which is also known under the term Santoprene, or of a mixture of polyamide and elastomer.
Der Vorteil dieses Material liegt darin, daß es beim Erwärmen vom starren in den teigigen Zustand überwechselt und dadurch mit dem Filterpapierkörper verschmolzen werden kann.The advantage of this material is that it changes from rigid to pasty when heated and can thus be fused with the filter paper body.
Außerdem zeigt das Material aufgrund der geringen Shore-Härte eine weichelastische Eigenschaft die dazu geeignet ist, daß die Enscheibe gleichzeitig als Dichtelement angewandt werden kann.In addition, due to the low Shore hardness, the material shows a soft elastic property that is suitable for the fact that the washer can also be used as a sealing element.
In einer weiteren Ausgestaltung der Erfindung besteht das Dichtelement aus einer Lippendichtung, welche beispielsweise mehrere Dichtrillen aufweist. Dadurch ist eine Art Labyrinthdichtung erzielbar. Außerdem hat die Anordnung von Dichtrillen den Vorteil, daß das Elastizitätsverhalten exakt einstellbar ist. Die Endscheibe ist ein Spritzgußteil und kann in einer Gestaltung im sogenannten 2- Komponenten Verfahren hergestellt werden. Dies bedeutet, daß Kunststoffe unterschiedlicher Eigenschaften in einem einzigen Arbeitsgang miteinander verschmolzen werden. So kann beispielsweise das Dichtelement aus einem Kunststoff bestehen, der besonders gute Dichteigenschaften aufweist. Das mit dem Filterkörper zu verschmelzende Element kann aus einem Kunststoff bestehen, der besonders gute Klebeeigenschaften aufweist.In a further embodiment of the invention, the sealing element consists of a lip seal which, for example, has a plurality of sealing grooves. A kind of labyrinth seal can thereby be achieved. In addition, the arrangement of sealing grooves has the advantage that the elasticity behavior can be set exactly. The end plate is an injection molded part and can be produced in a design using the so-called 2-component process. This means that plastics with different properties are melted together in a single operation. For example, the sealing element can consist of a plastic that has particularly good sealing properties. The element to be fused with the filter body can consist of a plastic which has particularly good adhesive properties.
Eine Weiterbildung der Erfindung sieht vor, das Dichtelement axial bzw. radial anzuordnen. Während die axiale Abdichtung einer Filterpatrone die bisher übliche Abdichtung darstellt, hat dieradiale Abdichtung den Vorteil, daß Längentoleranzen der Filterpatrone einfacher ausgeglichen werden können.A further development of the invention provides for the sealing element to be arranged axially or radially. While the axial sealing of a filter cartridge represents the previously usual sealing, the radial sealing has the advantage that length tolerances of the filter cartridge can be compensated for more easily.
Diese und weitere Merkmale von bevorzugten Weiterbildungen der Erfindung gehen außer aus den Ansprüchen auch aus der Beschreibung und den Zeichnungen hervor, wobei die einzelnen Merkmale jeweils für sich allein oder zu mehreren in Form von Unterkombinationen bei der Ausführungsform der Erfindung und auf anderen Gebieten verwirklicht sein und vorteilhafte sowie für sich schutzfähige Ausführungen darstellen können, für die hier Schutz beansprucht wird. Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im folgenden näher erläutert. Die Zeichnungen zeigen:These and further features of preferred developments of the invention are evident from the claims and also from the description and the drawings, the individual features being implemented individually or in groups in the form of subcombinations in the embodiment of the invention and in other fields, and can represent advantageous and protectable versions for which protection is claimed here. Embodiments of the invention are shown in the drawings and are explained in more detail below. The drawings show:
Figur la einen Halbschnitt eines Luftfilters mit Filterpatrone,FIG. 1 a half section of an air filter with a filter cartridge,
Figur lb eine Variante eines Luftfilters mit Filterpatrone,FIG. 1b shows a variant of an air filter with a filter cartridge,
Figur 2 ein Dichtungsprofil mit Hohlraum,FIG. 2 shows a sealing profile with a cavity,
Figur 3 ein Dichtungsprofil mit einer offenen Randdichtung.Figure 3 shows a sealing profile with an open edge seal.
Wie in Figur 1 dargestellt, besteht das Ausführungsbeispiel des Luftfilters aus einem Luftfiltergehäuse 10, das mit einem Deckel 1 1 verschlossen ist. Das Filtergehäuse weist einen Rohlufteinlaß 12 und einen Reinluftauslaß 13 auf. Innerhalb des Filtergehäuses befindet sich eine Filterpatrone 14, welche an ihrem oberen Ende mit einer Endscheibe 15 und an dem unteren Ende mit einer Endscheibe 16 versehen ist. Die Filterpatrone besteht im wesentlichen aus einem zick-zack-fόrmig gefalteten Filterpapier 17. Sowohl die Endscheibe 15 als auch die Endscheibe 16 besteht insbesondere aus Santoprene, einer Kombination aus Polypropylen und einem elastomeren Werkstoff.As shown in Figure 1, the embodiment of the air filter consists of an air filter housing 10 which is closed with a cover 11. The filter housing has a raw air inlet 12 and a clean air outlet 13. Inside the filter housing there is a filter cartridge 14 which is provided with an end plate 15 at its upper end and with an end plate 16 at the lower end. The filter cartridge consists essentially of a zigzag folded filter paper 17. Both the end plate 15 and the End plate 16 consists in particular of Santoprene, a combination of polypropylene and an elastomeric material.
An der unteren Endscheibe 16 sind in Figur la, das heißt im linken Halbschnitt, Dichtlippen angeformt. Diese Dichtlippen 18 weisen Dichtungsrillen 19, 20 auf, welche zu einer Erhöhung der Dichtwirkung beitragen. Die Endscheiben werden bei der Montage mit dem Filterpapier 17 erwärmt und in den Papierbalg eingeschmolzen und damit verbunden.In FIG. 1 a, that is to say in the left half-section, sealing lips are formed on the lower end disk 16. These sealing lips 18 have sealing grooves 19, 20 which contribute to an increase in the sealing effect. The end disks are heated during assembly with the filter paper 17 and melted into the paper bellows and connected to it.
Der rechtsseitige Halbschnitt Figur lb zeigt ebenfalls Dichtlippen 21. Diese bewirken eine radiale Abdichtung an dem Ansatz 22 des Reinluftaustritts 13. Wird die Endscheibe 16 beispielsweise im 2-Komponenten Spritzgießverfahren hergestellt, dann ist es zweckmäßig, die erste Komponente als leicht schmelzbare ebene Scheibe auszubilden und die zweite Komponente für den Dichtbereich vorzusehen.The right-hand half section of FIG. 1b also shows sealing lips 21. These provide a radial seal on the attachment 22 of the clean air outlet 13. If the end plate 16 is produced, for example, in a two-component injection molding process, it is expedient to design the first component as an easily meltable flat plate and to provide the second component for the sealing area.
Figur 2 zeigt eine Luftfilterpatrone bei der ein Dichtprofil an der Endscheibe 16 angeordnet ist, welche sowohl eine radiale als auch eine axiale Abdichtung bewirkt. Dieses Dichtprofil ist im sogenannten Gasinnendruckverfahren hergestellt, das heißt, der Hohlraum 23 der Profildichtung wird während des Spritzgießverfahrens durch ein Einblasen von Gas erzeugt. Damit ergibt sich eine Dichtung, die hinsichtlich der Elastizität auf die Anforderungen bezüglich der Stabilität des Filtereinsatzes abgestimmt werden kann. Als Dichtungs- bzw. Endscheibenmaterial eignet sich sowohl TPE als auch Polyamid.Figure 2 shows an air filter cartridge in which a sealing profile is arranged on the end plate 16, which brings about both a radial and an axial seal. This sealing profile is produced in the so-called gas internal pressure process, that is to say the cavity 23 of the profile seal is created during the injection molding process by blowing in gas. This results in a seal that can be adjusted in terms of elasticity to the requirements regarding the stability of the filter insert. Both TPE and polyamide are suitable as sealing or end plate material.
Eine Variante zeigt Figur 3. Hier ist das Dichtungsprofil ein offenes Profil. Die Dichtung bewirkt sowohl eine radiale als auch eine axiale Abdichtung bzw. eine Abdichtung in axialer Richtung und eine Lagestabilisierung der Filterpatrone 14 in radialer Richtung. Auch hier besteht die Möglichkeit, das Dichtungsprofil so zu gestalten, daß beide Funktionen, das heißt die Dichtfunktionen die Lagestabilisierung optimal erfüllt werden. Figure 3 shows a variant. Here, the sealing profile is an open profile. The seal effects both a radial and an axial seal or a seal in the axial direction and a position stabilization of the filter cartridge 14 in the radial direction. Here too there is the possibility of designing the sealing profile in such a way that both functions, that is to say the sealing functions, the position stabilization are optimally fulfilled.

Claims

Patentansprüche claims
1. Filterpatrone, insbesondere für einen Ansaugluftfilter einer Brennkraftmaschine mit einem aus einer zick-zack-formig gefalteten Filterpapierbahn bestehenden hohlzylindrischen Filterkörper der an wenigstens einer Stirnseite mit einer Endscheibe versehen ist und wobei diese Endscheibe ein Dichtelement aufweist, dadurch gekennzeichnet, daß die Endscheibe (16) unmittelbar mit dem Filterkörper (14) verbunden ist.1. Filter cartridge, in particular for an intake air filter of an internal combustion engine with a hollow cylindrical filter body consisting of a filter paper web folded in a zigzag shape and which is provided with an end plate on at least one end face and wherein this end plate has a sealing element, characterized in that the end plate (16 ) is directly connected to the filter body (14).
2. Filterpatrone nach Anspruch 1, dadurch gekennzeichnet, daß die Endscheibe (16) an den Filterkörper (14) angeschmolzen ist.2. Filter cartridge according to claim 1, characterized in that the end plate (16) on the filter body (14) is melted.
3. Filterpatrone nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Endscheibe (16) aus einer Mischung von Polypropylen und Elastomer oder aus einer Mischung von Polyamid und Elastomer besteht.3. Filter cartridge according to claim 1 or 2, characterized in that the end plate (16) consists of a mixture of polypropylene and elastomer or of a mixture of polyamide and elastomer.
4. Filterpatrone nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß das Dichtelement eine Lippendichtung (18) ist welche mehrere Dichtungsrillen (19, 20) aufweist.4. Filter cartridge according to claim 1, 2 or 3, characterized in that the sealing element is a lip seal (18) which has a plurality of sealing grooves (19, 20).
5. Filterpatrone nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß die Endscheibe (16) im 2-Komponenten Spritzgießverfahren hergestellt ist.5. Filter cartridge according to one of the preceding claims, characterized in that the end plate (16) is made in a two-component injection molding process.
6. Filterpatrone nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß das Dichtelement ein axial und/oder radial wirkendes Dichtelement (18, 21) ist. 6. Filter cartridge according to one of the preceding claims, characterized in that the sealing element is an axially and / or radially acting sealing element (18, 21).
PCT/EP1996/002235 1995-06-16 1996-05-24 Filter cartridge WO1997000113A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP96919804A EP0836525A1 (en) 1995-06-16 1996-05-24 Filter cartridge
JP9502546A JPH11508180A (en) 1995-06-16 1996-05-24 Filter patrone
BR9608355A BR9608355A (en) 1995-06-16 1996-05-24 Filter cartridge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19521898.1 1995-06-16
DE19521898A DE19521898A1 (en) 1995-06-16 1995-06-16 Filter cartridge

Publications (1)

Publication Number Publication Date
WO1997000113A1 true WO1997000113A1 (en) 1997-01-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1996/002235 WO1997000113A1 (en) 1995-06-16 1996-05-24 Filter cartridge

Country Status (8)

Country Link
EP (1) EP0836525A1 (en)
JP (1) JPH11508180A (en)
KR (1) KR19990022799A (en)
BR (1) BR9608355A (en)
CZ (1) CZ402797A3 (en)
DE (1) DE19521898A1 (en)
WO (1) WO1997000113A1 (en)
ZA (1) ZA965106B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999012629A1 (en) * 1997-09-08 1999-03-18 Cuno, Incorporated End-cap for pleated filter cartridge
DE19848978A1 (en) * 1998-10-23 2000-04-27 Knecht Filterwerke Gmbh Fluid filter includes a filter element which is sealed against a housing by a labyrinth seal formed of two complementary components
DE102010023974A1 (en) * 2010-06-16 2011-11-17 Mahle International Gmbh Filter arrangement, in particular air filter arrangement
US9217399B2 (en) 2003-02-11 2015-12-22 Donaldson Company, Inc. Air cleaner arrangements; serviceable filter elements; and, methods
EP4417293A1 (en) * 2023-02-14 2024-08-21 Donaldson Company, Inc. Filter elements and related filter assembly

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19638791A1 (en) * 1996-09-21 1998-03-26 Mann & Hummel Filter Air filters, in particular intake air filters for an internal combustion engine
DE19712679A1 (en) * 1997-03-26 1998-10-01 Mann & Hummel Filter Air filter
ZA982922B (en) * 1997-04-16 1998-10-09 Mann & Hummel Filter Modular filter system
DE19723580A1 (en) * 1997-06-05 1998-12-10 Knecht Filterwerke Gmbh Filters for gases and liquids
DE29715504U1 (en) * 1997-08-29 1998-12-24 Filterwerk Mann & Hummel Gmbh, 71638 Ludwigsburg Housing for a filter element
DE19813319A1 (en) * 1998-03-26 1999-09-30 Knecht Filterwerke Gmbh Ring-shaped plastic end plate made of polyamide for a ring filter
DE19930614A1 (en) * 1999-07-02 2001-01-04 Mann & Hummel Filter Filter insert
DE10159097A1 (en) 2001-12-01 2003-06-12 Mahle Filtersysteme Gmbh Intake air filter for an internal combustion engine
DE102004015398A1 (en) 2003-03-26 2004-11-04 Mann + Hummel Gmbh Hot-melt bond between pleated filter component and base plate, relies upon grooved base plate, from which material flows into folds during bonding
FR2854818B1 (en) * 2003-05-15 2007-04-20 Filtrauto FILTER CARTRIDGE FOR INTERNAL COMBUSTION ENGINE LIQUID FILTER AND FILTER COMPRISING SUCH FILTER CARTRIDGE
DE102004029225A1 (en) 2004-06-17 2006-01-12 Hydac Filtertechnik Gmbh Filter device and filter element
US7628837B2 (en) 2005-10-19 2009-12-08 Baldwin Filters, Inc. Air filter with composite end cap
US7815705B2 (en) 2005-10-19 2010-10-19 Baldwin Filters, Inc. Air filter with composite end cap
DE102006003949B4 (en) * 2006-01-26 2008-04-30 Carl Freudenberg Kg Filter element with connection element
DE202007014821U1 (en) * 2007-10-02 2009-02-26 Mann+Hummel Gmbh Filter element V-seal
DE202007013822U1 (en) * 2007-10-02 2009-02-19 Mann+Hummel Gmbh Filter element and filter system
WO2016098245A1 (en) * 2014-12-19 2016-06-23 本田技研工業株式会社 Vehicular air cleaner device
JP6911029B2 (en) * 2015-12-18 2021-07-28 ドナルドソン カンパニー，インコーポレイティド Filter cartridge and air purifier assembly
DE102019129692A1 (en) * 2019-11-04 2021-05-06 Elsässer Filtertechnik GmbH Air filter with integrated sealing lip
DE102020130142B3 (en) 2020-11-16 2022-02-10 Mann+Hummel Gmbh Ring-shaped sealing element for a round filter element, round filter element and filter device
EP4218986A1 (en) * 2022-01-28 2023-08-02 Volvo Truck Corporation A tubular air filter element

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1549577A (en) * 1966-11-17 1968-12-13
GB1253354A (en) * 1967-11-16 1971-11-10 Tecalemit Engineering Improvements in fluid filters
FR2266535A1 (en) * 1974-04-08 1975-10-31 Europ Accumulateurs Fabrication of a filter cartridge - by pressing heat softened covers in e.g. polypropylene to filter element edges

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD61890A (en) *
DE1576541A1 (en) * 1967-03-17 1970-07-02 Mann & Hummel Filter Replaceable air filter cartridge
DE2738086A1 (en) * 1977-08-24 1979-03-08 Heinz Hoelter Air filter with flexible flange - fixed together by material pegs in filter rim holes
DE8805049U1 (en) * 1988-04-16 1988-06-01 Ing. Walter Hengst GmbH & Co KG, 4400 Münster Air filter
DE3838540A1 (en) * 1988-11-14 1990-05-17 Hengst Walter Gmbh & Co Kg Filter cartridge, in particular for an intake air filter of an internal combustion engine
DE4024898A1 (en) * 1990-08-06 1992-02-13 Mann & Hummel Filter INTAKE AIR FILTER FOR THE COMBUSTION ENGINE OF A VEHICLE
DE4141969A1 (en) * 1991-12-19 1993-06-24 Knecht Filterwerke Gmbh RING FILTER ELEMENT MADE OF A ZIGZAG FOLDED FILTER RAIL MATERIAL
DE4241586C1 (en) * 1992-12-10 1994-01-27 Mann & Hummel Filter Air filter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1549577A (en) * 1966-11-17 1968-12-13
GB1253354A (en) * 1967-11-16 1971-11-10 Tecalemit Engineering Improvements in fluid filters
FR2266535A1 (en) * 1974-04-08 1975-10-31 Europ Accumulateurs Fabrication of a filter cartridge - by pressing heat softened covers in e.g. polypropylene to filter element edges

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999012629A1 (en) * 1997-09-08 1999-03-18 Cuno, Incorporated End-cap for pleated filter cartridge
DE19848978A1 (en) * 1998-10-23 2000-04-27 Knecht Filterwerke Gmbh Fluid filter includes a filter element which is sealed against a housing by a labyrinth seal formed of two complementary components
DE19848978B4 (en) * 1998-10-23 2006-11-09 Mahle Filtersysteme Gmbh filter element
US9217399B2 (en) 2003-02-11 2015-12-22 Donaldson Company, Inc. Air cleaner arrangements; serviceable filter elements; and, methods
US10010825B2 (en) 2003-02-11 2018-07-03 Donaldson Company, Inc. Air cleaner arrangements; serviceable filter elements; and, methods
US10589209B2 (en) 2003-02-11 2020-03-17 Donaldson Company, Inc. Air cleaner arrangements; serviceable filter elements; and, methods
US11318408B2 (en) 2003-02-11 2022-05-03 Donaldson Company, Inc. Air cleaner arrangements; serviceable filter elements; and, methods
DE102010023974A1 (en) * 2010-06-16 2011-11-17 Mahle International Gmbh Filter arrangement, in particular air filter arrangement
US9144763B2 (en) 2010-06-16 2015-09-29 Mahle International Gmbh Filter arrangment, in particular air filter arrangement
EP4417293A1 (en) * 2023-02-14 2024-08-21 Donaldson Company, Inc. Filter elements and related filter assembly

Also Published As

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CZ402797A3 (en) 1998-06-17
BR9608355A (en) 1999-03-30
KR19990022799A (en) 1999-03-25
DE19521898A1 (en) 1996-12-19
EP0836525A1 (en) 1998-04-22
ZA965106B (en) 1997-01-22
JPH11508180A (en) 1999-07-21

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