WO2007085427A1 - Filter element with connecting element - Google Patents
Filter element with connecting element Download PDFInfo
- Publication number
- WO2007085427A1 WO2007085427A1 PCT/EP2007/000579 EP2007000579W WO2007085427A1 WO 2007085427 A1 WO2007085427 A1 WO 2007085427A1 EP 2007000579 W EP2007000579 W EP 2007000579W WO 2007085427 A1 WO2007085427 A1 WO 2007085427A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filter
- sealing means
- filter medium
- filter element
- element according
- Prior art date
Links
- 238000007789 sealing Methods 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims description 16
- 238000011045 prefiltration Methods 0.000 claims description 11
- 239000004745 nonwoven fabric Substances 0.000 claims description 9
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 4
- 229920001169 thermoplastic Polymers 0.000 claims description 4
- 239000004416 thermosoftening plastic Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 10
- 239000000565 sealant Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 4
- 230000037303 wrinkles Effects 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000012815 thermoplastic material Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003251 chemically resistant material Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
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
- B01D46/24—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
-
- 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
- B01D46/52—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
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/29—Filter cartridge constructions
- B01D2201/291—End caps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/34—Seals or gaskets for filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
- B01D2265/02—Non-permanent measures for connecting different parts of the filter
- B01D2265/029—Special screwing connections, threaded sections
-
- 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 element comprising a filter medium and at least one connecting element connected to the filter medium, wherein the connecting element has sealing means.
- Filter elements of the type mentioned above are already known from the prior art.
- gaskets which comprise strip-shaped connection elements, which are arranged on the end faces of the filter medium.
- strip-shaped connecting elements are provided with glued sealing lips, which protrude from the strip-shaped connection elements and come to housing walls to the plant.
- each connecting element is assigned a sealing lip.
- the invention is therefore based on the object to provide filter systems which ensure optimum filter performance with simple production.
- Claim 1 characterized in that the sealing means of a connecting element extend at least in two different directions for sealing engagement with an abutment.
- filter elements of this embodiment can be brought into contact with a plurality of housing walls at the same time due to the provision of a plurality of sealing means on a connecting element.
- a sealing effect and thereby effective filter performance can be achieved, but also a firmer system of the filter element in a housing. Consequently, it is ensured that a filter element structurally simple construction can develop its optimum filter performance, since secondary flows are avoided by leaking gaps.
- a filter element of the type mentioned is characterized in that the sealing means and the connection element are integrally formed. According to the invention it has been recognized that this configuration avoids subsequent processing steps of the connection element, during which sealant must be sprayed or molded in a complex manner. A detachment of the sealant is thus almost impossible, whereby an optimal filter performance is ensured.
- connection element and the filter medium consist of the same material.
- This design allows for the manufacture of the filter element, the use of only one material and thereby minimizes storage costs. Consequently, a particularly cost-effective manufacturing process can be realized.
- a diecut which is made of the material from which the filter medium consists, is placed on the filter medium and is thermally connected thereto.
- the connection element is formed out of the filter medium. This can likewise be done by a thermal treatment, namely by softening and shaping the end regions of the filter medium. In this process, sealing means can be attached to the connection element at the same time. This seam or interfaces are effectively avoided and ensures increased tightness of the filter element.
- the filter medium could be configured cylindrically with the formation of an axial passage and a connection element may be arranged on the end faces of the cylinder element.
- This specific embodiment allows the use of the filter element as a filter cartridge.
- the cylindrically shaped filter medium in connection with the connection element on at least one end face of the cylinder gives the filter element a particular stability. This stability allows the use of the filter element not only at Gas flows such as air, but also in liquid flow media such as oil.
- Such a filter cartridge can therefore preferably be used as an oil filter.
- At least one sealing means could extend in the direction of the axial passage, namely in the radial direction inwards.
- Embodiment ensures that a filter cartridge can be sealed not only with respect to its outer periphery or with respect to the end faces, but also with respect to its inner circumference. This is particularly advantageous when tubular elements are introduced into the axial passage, must be sealed against the outer periphery.
- the design thus allows the arrangement of a filter cartridge in a complex shaped housing, which is associated with a tubular element.
- the filter cartridge is alsstülpbar on the tubular member, which can be sealed against the outer surface of the tubular member and against the inner wall of the housing.
- the filter element as a filter cartridge for filtering oils can be extended by this form of sealing the life of adjacent to the filter housing components. This is achieved by the fact that almost no leaks can occur, can penetrate through the contaminants in the adjacent components.
- the sealing means could extend in mutually orthogonal directions.
- This geometric arrangement of the sealant allows easy production and tight positioning of the filter element in common housings with mutually orthogonal walls.
- a disk-shaped connecting element has a sealing means on its inner or outer circumference and a sealing means on its surface. In this way, it is possible to seal against cylindrical walls and a cover wall of a cylindrical housing which is orthogonal thereto.
- the sealing means could be designed as protuberances. It is conceivable that the sealing means are designed as semicircular, oval or triangular protuberances, which are sealingly engageable by a press fit against a housing wall.
- At least one connecting element could be made of a castable or injection-moldable material.
- This specific embodiment facilitates the formation of the sealant on the connection element.
- the integral production of the connection element and the sealant is particularly greatly simplified.
- liquid rubber is used as the injection-moldable material. This material is characterized by a particularly easy processing and high elasticity.
- polyurethane A particularly cost-effective and chemically resistant material is polyurethane.
- This material can be processed easily and has a high chemical resistance to almost all fluids.
- polyurethane is characterized by its viscosity behavior particularly as a material, since it can penetrate into fine gaps and cracks and to this extent can ensure a tight, cohesive connection between the filter medium and connection element.
- Polyurethane is very low viscous during processing, but hardens relatively quickly after processing.
- acrylate rubber could be used as a castable or injection moldable material.
- This material is characterized by a high oil resistance.
- fluororubbers could be used, which are characterized by a particularly high temperature stability.
- Natural rubbers could be used. These are also inexpensive.
- connection element could be produced by the following method steps:
- a zig-zag folded filter medium is introduced into a cavity of a mold formed complementary to the filter medium. Thereafter, an approximately 200 0 C hot material is introduced into the mold, which can flow into the fold edges and is prevented by the wall of the mold from spreading in the radial direction.
- the 200 0 C hot material is usually a thermoplastic material or a liquid rubber. It is particularly important to ensure that the material is chosen so low viscous that the wrinkles are not moved in position or deformed. As a result, the filter property is adversely affected.
- the shape has star-shaped protuberances which engage in the fold backs and stabilize them during the injection process. When such a mold is used, it is also possible to use highly viscous or higher-viscous materials, since the risk of deformation of the folds no longer exists.
- silicone could also be used. This material is characterized by a high temperature resistance and is still sufficiently ductile after the cross-linking process to absorb stresses and deformations nondestructively.
- connection elements can be very easily brought into the geometric shape of the connection elements described here with suitable tools.
- At least one connection element could be provided with a thread.
- This specific embodiment allows the fixed abutment of a tubular element within the axial passage of a cylinder-shaped filter medium when an internal thread is provided.
- the internal thread is formed so elastic or conical that the threads also act as a sealant.
- an external thread so that the filter element can be screwed in a fluid-tight manner into a receptacle.
- At least one connecting element could be provided with a groove.
- the provision of a groove allows the subsequent attachment of a sealing material within the groove. It is conceivable that the groove is configured with an undercut into which the sealing material can flow in order to ensure a firm connection with the connection element. against this background, a groove could also define a cavity to increase the stability of the terminal element. The groove could be designed as a defined vulnerability.
- the filter medium could be configured as a nonwoven fabric.
- the use of a nonwoven fabric allows easy adjustment of the filter medium in terms of its porosity, since nonwovens are commercially available in virtually all porosities.
- the nonwoven fabric could consist of thermoplastic fibers.
- the use of thermoplastic fibers allows a fusion and thus a cohesive connection of the filter medium with a connection element, since both filter medium and connection element can soften.
- the Connection can be made by a method in which the connection element is arranged in a heated mold and the filter medium is pressed against the connection element with a defined force.
- the filter medium and / or the connecting element can be connected by rotational movements with its joining partner. The rotation contributes to the fact that the joining partners connect with each other and penetrate each other.
- the thermal methods comprise friction welding methods, ultrasonic welding methods or methods which use microwave radiation.
- the filter medium could be assigned a pre-filter.
- the pre-filter advantageously realizes a pre-separation of certain particles, whereby the life of the actual filter medium can be extended.
- a pre-filter may preferably be used a spunbonded nonwoven, which has a basis weight of 30 to 200 g / m 2 .
- Such a spunbonded fabric has proven to be particularly suitable for use when the filter element flows with liquid media. This spunbonded fabric has sufficient strength and is not prone to rupture. It is also conceivable to use a wet-laid nonwoven fabric as a pre-filter. Such a nonwoven fabric is particularly inexpensive.
- the pre-filter could be arranged circumferentially around a cylinder-shaped filter medium and be connected to this point by thermal welding or point-line in order to establish a firm connection. If the filter medium has wrinkles, the pre-filter also acts as a wrinkle stabilizer.
- the filter medium could be designed as a star-shaped bellows.
- the provision of folds in the filter medium increases its effective filter area.
- the relative spacing of the pleats to each other could be done by a welded ribbon, which has a width between 4 and 8 mm having. It could be provided per filter element 1 to 4 bands. These dimensions or this number have proven to be particularly advantageous in terms of the stability of the filter element in the filtration of liquids.
- the ribbon could be combined with the pleat tips by thermal welding techniques such as ultrasonic welding or
- the prefilter could be thermally welded to some or all pleat tips.
- the connecting element could have a star profile. The star profile could stabilize the spacing of the pleats of the filter medium.
- Fig. A star-shaped filter element with connection elements, which are designed as end caps.
- the sole FIGURE shows a filter element with a filter medium 1 and a connection element 2 connected to the filter element.
- the connection element 2 can be connected to the filter medium 1 in a materially bonded manner.
- Connecting element 2 has two different sealing means 3 and 4, which extend in two different directions for sealing contact with each abutment.
- the filter medium 1 is cylindrical, forming an axial
- connection element 2 is arranged on the end faces of the cylinder.
- the sealing means 4 extends in the direction of the axial passage 5, namely in the direction of the axis of symmetry A, d. H. in the radial direction inwards.
- the sealing means 3 extends in the radial direction to the outside.
- the sealing means 3, 4 are arranged concentrically in the specific case.
- the axial passage 5 can be filled by a tubular element which comes into contact with the sealing means 4 and acts as an abutment.
- the sealing means 4 are formed as a thread, in which an abutment can be screwed tight. Due to the ductility of the threads a sealing contact with the screwed abutment is ensured.
- the sealing means 3 can be applied against the inner wall of a cylindrical housing.
- the sealing means 3, 4 and the connection element 2 are integrally formed.
- the sealing means 3 are designed as semicircular protuberances.
- the protuberances 3 are designed as circumferential sealing lip.
- the connecting element 2 and the sealing means 3, 4 are made of polyurethane.
- the filter medium 1 is configured as a nonwoven fabric and consists of thermoplastic fibers.
- the filter medium 1 is associated with a pre-filter 6, which comprises a spunbonded nonwoven.
- the pre-filter 6 is shown interrupted, but envelops the filter medium 1 in full.
- the filter medium 1 is designed as a star-shaped bellows.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Filtering Materials (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
A filter element comprising a filter medium (1) and at least one connecting element (2) connected to the filter medium (1), the connecting element (2) having sealing means (3, 4), has been designed with regard to the problem of providing filter systems which ensure optimal filter performance with simple manufacture, characterized in that the sealing means (3, 4) of a connecting element (2) extend at least in two different directions to the sealing unit at a bearing, or in that the sealing means (3, 4) and the connecting element (2) are designed integrally.
Description
26.01.2006 Wesch / DE26.01.2006 Wesch / DE
Anmelderin: Carl Freudenberg KG, 69469 WeinheimApplicant: Carl Freudenberg KG, 69469 Weinheim
Filterelement mit AnschlusselementFilter element with connection element
Beschreibungdescription
Technisches GebietTechnical area
Die Erfindung betrifft ein Filterelement, umfassend ein Filtermedium und zumindest ein mit dem Filtermedium verbundenes Anschlusselement, wobei das Anschlusselement Dichtungsmittel aufweist.The invention relates to a filter element comprising a filter medium and at least one connecting element connected to the filter medium, wherein the connecting element has sealing means.
Stand der TechnikState of the art
Aus dem Stand der Technik sind bereits Filterelemente der oben genannten Art bekannt. Beispielsweise sind Flachdichtungen bekannt, welche streifenförmige Anschlusselemente umfassen, die an den Stirnseiten des Filtermediums angeordnet sind. Diese streifenförmigen Anschlusselemente sind mit aufgeklebten Dichtlippen versehen, welche von den streifenförmigen Anschlusselementen abragen und an Gehäusewandungen zur Anlage kommen. Dabei ist jedem Anschlusselement eine Dichtlippe zugeordnet.Filter elements of the type mentioned above are already known from the prior art. For example, gaskets are known, which comprise strip-shaped connection elements, which are arranged on the end faces of the filter medium. These strip-shaped connecting elements are provided with glued sealing lips, which protrude from the strip-shaped connection elements and come to housing walls to the plant. In this case, each connecting element is assigned a sealing lip.
Die aus dem Stand der Technik bekannten Filterelemente sind jedoch nicht geeignet, eine strömungsdichte Anlage des Filterelements in komplex ausgeformten Gehäusen sicher zu stellen. Auch weisen die Filterelemente den Nachteil auf, dass sich die angeklebten Dichtlippen ablösen können.
Darstellung der ErfindungHowever, the known from the prior art filter elements are not suitable to ensure a flow-tight contact of the filter element in complex shaped housings. Also, the filter elements have the disadvantage that the adhered sealing lips can detach. Presentation of the invention
Der Erfindung liegt daher die Aufgabe zu Grunde, Filtersysteme zu schaffen, welche bei einfacher Fertigung eine optimale Filterleistung gewährleisten.The invention is therefore based on the object to provide filter systems which ensure optimum filter performance with simple production.
Erfindungsgemäß wird die voranstehende Aufgabe mit den Merkmalen der Patentansprüche 1 und 2 gelöst.According to the invention the above object is achieved with the features of claims 1 and 2.
Danach ist ein Filterelement der eingangs genannten Art gemäßThereafter, a filter element of the type mentioned in accordance with
Patentanspruch 1 dadurch gekennzeichnet, dass sich die Dichtungsmittel eines Anschlusselements zumindest in zwei unterschiedlichen Richtungen zur dichtenden Anlage an ein Widerlager erstrecken.Claim 1, characterized in that the sealing means of a connecting element extend at least in two different directions for sealing engagement with an abutment.
Erfindungsgemäß ist erkannt worden, dass Filterelemente dieser Ausgestaltung aufgrund der Vorkehrung mehrerer Dichtungsmittel an einem Anschlusselement an mehreren Gehäusewandungen zugleich zur Anlage gebracht werden können. Insoweit ist nicht nur eine verbesserte Dichtungswirkung und dadurch effektive Filterleistung erzielbar, sondern auch eine festere Anlage des Filterelements in einem Gehäuse. Folglich ist sicher gestellt, dass ein Filterelement konstruktiv einfachen Aufbaus seine optimale Filterleistung entfalten kann, da Nebenströmungen durch undichte Zwischenräume vermieden sind.According to the invention, it has been recognized that filter elements of this embodiment can be brought into contact with a plurality of housing walls at the same time due to the provision of a plurality of sealing means on a connecting element. In that regard, not only an improved sealing effect and thereby effective filter performance can be achieved, but also a firmer system of the filter element in a housing. Consequently, it is ensured that a filter element structurally simple construction can develop its optimum filter performance, since secondary flows are avoided by leaking gaps.
Folglich ist die eingangs genannte Aufgabe gelöst.Consequently, the object mentioned above is achieved.
Nach Patentanspruch 2 ist ein Filterelement der eingangs genannten Art dadurch gekennzeichnet, dass die Dichtungsmittel und das Anschlusselement integral ausgebildet sind.
Erfindungsgemäß ist erkannt worden, dass diese Ausgestaltung nachträgliche Verarbeitungsschritte des Anschlusselementes vermeidet, während denen Dichtungsmittel in aufwändiger Weise angespritzt oder angeformt werden müssen. Ein Ablösen der Dichtungsmittel ist somit nahezu ausgeschlossen, wodurch eine optimale Filterleistung gewährleistet wird.According to claim 2, a filter element of the type mentioned is characterized in that the sealing means and the connection element are integrally formed. According to the invention it has been recognized that this configuration avoids subsequent processing steps of the connection element, during which sealant must be sprayed or molded in a complex manner. A detachment of the sealant is thus almost impossible, whereby an optimal filter performance is ensured.
Folglich ist die eingangs genannte Aufgabe gelöst.Consequently, the object mentioned above is achieved.
Vor diesem Hintergrund ist denkbar, dass das Anschlusselement und das Filtermedium aus demselben Material bestehen. Diese Ausgestaltung ermöglicht bei der Fertigung des Filterelements die Verwendung lediglich eines Materials und minimiert dadurch Lagerhaltungskosten. Folglich ist ein besonders kostengünstiger Fertigungsprozess realisierbar. Insbesondere ist denkbar, dass ein Stanzling, welcher aus dem Material gefertigt ist, aus dem das Filtermedium besteht, auf das Filtermedium aufgesetzt wird und mit diesem thermisch verbunden wird. Ebenso ist denkbar, dass das Anschlusselement aus dem Filtermedium herausgebildet wird. Dies kann ebenfalls durch eine thermische Behandlung erfolgen, indem nämlich die Endbereiche des Filtermediums erweicht und in Form gebracht werden. Bei diesem Prozess können gleichzeitig Dichtmittel an dem Anschlusselement angebracht werden. Hierbei werden Naht- oder Schnittstellen wirksam vermieden und eine erhöhte Dichtheit des Filterelements gewährleistet.Against this background, it is conceivable that the connection element and the filter medium consist of the same material. This design allows for the manufacture of the filter element, the use of only one material and thereby minimizes storage costs. Consequently, a particularly cost-effective manufacturing process can be realized. In particular, it is conceivable that a diecut, which is made of the material from which the filter medium consists, is placed on the filter medium and is thermally connected thereto. It is also conceivable that the connection element is formed out of the filter medium. This can likewise be done by a thermal treatment, namely by softening and shaping the end regions of the filter medium. In this process, sealing means can be attached to the connection element at the same time. This seam or interfaces are effectively avoided and ensures increased tightness of the filter element.
Das Filtermedium könnte zylinderförmig unter Ausbildung eines axialen Durchgangs ausgestaltet und ein Anschlusselement an den Stirnseiten des Zylinderelements angeordnet sein. Diese konkrete Ausgestaltung erlaubt den Einsatz des Filterelements als Filterpatrone. Das zylinderförmig geformte Filtermedium in Verbindung mit dem Anschlusselement an zumindest einer Stirnseite des Zylinders verleiht dem Filterelement eine besondere Stabilität. Diese Stabilität ermöglicht den Einsatz des Filterelements nicht nur bei
Gasströmungen wie Luft, sondern auch bei flüssigen Strömungsmedien wie Öl. Eine solche Filterpatrone kann daher bevorzugt als Ölfilter Verwendung finden.The filter medium could be configured cylindrically with the formation of an axial passage and a connection element may be arranged on the end faces of the cylinder element. This specific embodiment allows the use of the filter element as a filter cartridge. The cylindrically shaped filter medium in connection with the connection element on at least one end face of the cylinder gives the filter element a particular stability. This stability allows the use of the filter element not only at Gas flows such as air, but also in liquid flow media such as oil. Such a filter cartridge can therefore preferably be used as an oil filter.
Zumindest ein Dichtungsmittel könnte sich in Richtung des axialen Durchgangs, nämlich in radialer Richtung nach innen, erstrecken. Diese konkreteAt least one sealing means could extend in the direction of the axial passage, namely in the radial direction inwards. This concrete
Ausgestaltung stellt sicher, dass eine Filterpatrone nicht nur in Bezug auf ihren äußeren Umfang oder bezüglich der Stirnseiten abgedichtet werden kann, sondern auch bezüglich ihres inneren Umfangs. Dies ist insbesondere dann von Vorteil, wenn in den axialen Durchgang rohrförmige Elemente eingeführt werden, gegen deren Außenumfang abgedichtet werden muss. Die Ausgestaltung erlaubt somit die Anordnung einer Filterpatrone in einem komplex ausgeformten Gehäuse, welchem ein rohrförmiges Element zugeordnet ist. Die Filterpatrone ist auf das rohrförmige Element aufstülpbar, wobei gegen die Außenfläche des rohrförmigen Elementes sowie gegen die Innenwandung des Gehäuses abgedichtet werden kann. Gerade bei einer Verwendung des Filterelements als Filterpatrone zur Filterung von Ölen kann durch diese Form der Abdichtung die Lebensdauer von an das Filtergehäuse angrenzenden Bauteilen verlängert werden. Dies wird dadurch bewirkt, dass nahezu keine Leckagen auftreten können, durch die Verschmutzungen in die angrenzenden Bauteile eindringen können.Embodiment ensures that a filter cartridge can be sealed not only with respect to its outer periphery or with respect to the end faces, but also with respect to its inner circumference. This is particularly advantageous when tubular elements are introduced into the axial passage, must be sealed against the outer periphery. The design thus allows the arrangement of a filter cartridge in a complex shaped housing, which is associated with a tubular element. The filter cartridge is aufstülpbar on the tubular member, which can be sealed against the outer surface of the tubular member and against the inner wall of the housing. Especially when using the filter element as a filter cartridge for filtering oils can be extended by this form of sealing the life of adjacent to the filter housing components. This is achieved by the fact that almost no leaks can occur, can penetrate through the contaminants in the adjacent components.
Vor diesem Hintergrund könnten sich die Dichtungsmittel in zueinander orthogonalen Richtungen erstrecken. Diese geometrische Anordnung der Dichtungsmittel erlaubt eine problemlose Fertigung und eine dichte Positionierung des Filterelements in gängigen Gehäusen mit zueinander orthogonalen Wandungen. Beispielsweise ist denkbar, dass ein scheibenförmiges Anschlusselement an seinem Innen- oder Außenumfang ein Dichtungsmittel sowie an seiner Oberfläche ein Dichtungsmittel aufweist. Hierdurch kann gegen zylindrische Wandungen und eine hierzu orthogonale Abdeckwandung eines zylindrischen Gehäuses abgedichtet werden.
Die Dichtungsmittel könnten als Ausstülpungen ausgestaltet sein. Dabei ist denkbar, dass die Dichtungsmittel als halbkreisförmige, ovale oder dreieckförmige Ausstülpungen ausgestaltet sind, welche durch einen Presssitz gegen eine Gehäusewand dichtend anlegbar sind.Against this background, the sealing means could extend in mutually orthogonal directions. This geometric arrangement of the sealant allows easy production and tight positioning of the filter element in common housings with mutually orthogonal walls. For example, it is conceivable that a disk-shaped connecting element has a sealing means on its inner or outer circumference and a sealing means on its surface. In this way, it is possible to seal against cylindrical walls and a cover wall of a cylindrical housing which is orthogonal thereto. The sealing means could be designed as protuberances. It is conceivable that the sealing means are designed as semicircular, oval or triangular protuberances, which are sealingly engageable by a press fit against a housing wall.
Zumindest ein Anschlusselement könnte aus einem vergießbaren oder spritzgießbaren Werkstoff gefertigt sein. Diese konkrete Ausgestaltung erleichtert die Ausbildung der Dichtungsmittel am Anschlusselement. Hierdurch wird die integrale Fertigung des Anschlusselements und der Dichtungsmittel besonders stark vereinfacht. Vor diesem Hintergrund ist denkbar, dass als spritzgießbarer Werkstoff Flüssigkautschuk verwendet wird. Dieser Werkstoff zeichnet sich durch eine besonders problemlose Verarbeitbarkeit und hohe Elastizität aus.At least one connecting element could be made of a castable or injection-moldable material. This specific embodiment facilitates the formation of the sealant on the connection element. As a result, the integral production of the connection element and the sealant is particularly greatly simplified. Against this background, it is conceivable that liquid rubber is used as the injection-moldable material. This material is characterized by a particularly easy processing and high elasticity.
Einen besonders kostengünstigen und chemisch widerstandsfähigen Werkstoff stellt Polyurethan dar. Dieser Werkstoff lässt sich problemlos verarbeiten und weist eine hohe chemische Resistenz gegenüber nahezu sämtlichen Fluiden auf. Darüber hinaus zeichnet sich Polyurethan auf Grund seines Viskositätsverhaltens besonders als Werkstoff aus, da er auch in feine Spalten und Ritzen eindringen kann und insoweit eine dichte, stoffschlüssige Verbindung zwischen Filtermedium und Anschlusselement sicherstellen kann. Während der Verarbeitung ist Polyurethan sehr niedrig viskos, härtet aber nach der Verarbeitung relativ schnell aus.A particularly cost-effective and chemically resistant material is polyurethane. This material can be processed easily and has a high chemical resistance to almost all fluids. In addition, polyurethane is characterized by its viscosity behavior particularly as a material, since it can penetrate into fine gaps and cracks and to this extent can ensure a tight, cohesive connection between the filter medium and connection element. Polyurethane is very low viscous during processing, but hardens relatively quickly after processing.
In vorteilhafter weise könnte Acrylatkautschuk (ACM) als vergießbarer oder spritzgießbarer Werkstoff verwendet werden. Dieser Werkstoff zeichnet sich durch eine hohe Ölbeständigkeit aus. Des Weiteren könnten Fluorkautschuke Verwendung finden, welche sich durch eine besonders hohe Temperaturstabilität auszeichnen. Um eine hohe Abriebeständigkeit zu
realisieren, könnten Naturkautschuke Verwendung finden. Diese sind des Weiteren kostengünstig.Advantageously, acrylate rubber (ACM) could be used as a castable or injection moldable material. This material is characterized by a high oil resistance. Furthermore, fluororubbers could be used, which are characterized by a particularly high temperature stability. To a high abrasion resistance too Natural rubbers could be used. These are also inexpensive.
Das Anschlusselement könnte durch folgende Verfahrensschritte hergestellt werden:The connection element could be produced by the following method steps:
Ein zick-zackförmig gefaltetes Filtermedium wird in einen komplementär zum Filtermedium ausgebildeten Hohlraum einer Form eingebracht. Danach wird in die Form ein etwa 2000C heißer Werkstoff eingebracht, der in die Faltenkanten hineinfließen kann und durch die Wandung der Form daran gehindert wird sich in radialer Richtung auszubreiten. Der 2000C heiße Werkstoff ist üblicherweise ein thermoplastischer Werkstoff oder ein Flüssigkautschuk. Dabei ist insbesondere dafür Sorge zu tragen, dass das Material derart niedrig viskos gewählt wird, dass die Falten nicht in ihrer Position verschoben oder deformiert werden. Hierdurch wird die Filtereigenschaft negativ beeinträchtigt. Vor diesem Hintergrund ist denkbar, dass die Form über sternförmig angeordnete Ausstülpungen verfügt, welche in die Faltenrücken eingreifen und diese während des Einspritzvorgangs stabilisieren. Wenn eine solche Form verwendet wird, können auch hoch viskose oder höher viskose Werkstoffe verwendet werden, da die Gefahr der Deformierung der Falten nicht mehr gegeben ist.A zig-zag folded filter medium is introduced into a cavity of a mold formed complementary to the filter medium. Thereafter, an approximately 200 0 C hot material is introduced into the mold, which can flow into the fold edges and is prevented by the wall of the mold from spreading in the radial direction. The 200 0 C hot material is usually a thermoplastic material or a liquid rubber. It is particularly important to ensure that the material is chosen so low viscous that the wrinkles are not moved in position or deformed. As a result, the filter property is adversely affected. Against this background, it is conceivable that the shape has star-shaped protuberances which engage in the fold backs and stabilize them during the injection process. When such a mold is used, it is also possible to use highly viscous or higher-viscous materials, since the risk of deformation of the folds no longer exists.
Vor diesem Hintergrund könnte auch Silikon Verwendung finden. Dieser Werkstoff zeichnet sich durch eine hohe Temperaturbeständigkeit aus und ist nach dem Vernetzungsprozess noch ausreichend duktil, um Spannungen und Deformierungen zerstörungsfrei aufzunehmen.Against this background, silicone could also be used. This material is characterized by a high temperature resistance and is still sufficiently ductile after the cross-linking process to absorb stresses and deformations nondestructively.
Denkbar ist auch, thermoplastische Werkstoffe zu verwenden. Diese können mit geeigneten Werkzeugen besonders einfach in die geometrische Form der hier beschriebenen Anschlusselemente gebracht werden.
Zumindest ein Anschlusselement könnte mit einem Gewinde versehen sein. Diese konkrete Ausgestaltung erlaubt die feste Anlage eines rohrförmigen Elements innerhalb des axialen Durchgangs eines zylinderförmig ausgestalteten Filtermediums, wenn ein Innengewinde vorgesehen ist. Vor diesem Hintergrund ist denkbar, dass das Innengewinde derart elastisch oder konisch ausgebildet ist, dass die Gewindegänge zugleich als Dichtungsmittel fungieren. Durch diese Ausgestaltung ist nicht nur eine feste Fixierung eines rohrförmigen Elements innerhalb des Filtermediums, sondern auch eine dichtende Anlage sicher gestellt. Vor diesem Hintergrund ist auch denkbar, ein Außengewinde vorzusehen, so dass das Filterelement in eine Aufnahme fluiddicht einschraubbar ist.It is also conceivable to use thermoplastic materials. These can be very easily brought into the geometric shape of the connection elements described here with suitable tools. At least one connection element could be provided with a thread. This specific embodiment allows the fixed abutment of a tubular element within the axial passage of a cylinder-shaped filter medium when an internal thread is provided. Against this background, it is conceivable that the internal thread is formed so elastic or conical that the threads also act as a sealant. By this configuration, not only a fixed fixation of a tubular element within the filter medium, but also a sealing system is ensured. Against this background, it is also conceivable to provide an external thread, so that the filter element can be screwed in a fluid-tight manner into a receptacle.
Zumindest ein Anschlusselement könnte mit einer Nut versehen sein. Die Vorkehrung einer Nut erlaubt das nachträgliche Anbringen eines Dichtungsmaterials innerhalb der Nut. Dabei ist denkbar dass die Nut mit einer Hinterschneidung ausgestaltet ist, in welche das Dichtungsmaterial hinein fließen kann, um eine feste Verbindung mit dem Anschlusselement sicher zu stellen. Vor diesem Hintergrund könnte eine Nut auch einen Hohlraum definieren, um die Stabilität des Anschlusselements zu erhöhen. Dabei könnte die Nut als definierte Schwachstelle ausgestaltet sein.At least one connecting element could be provided with a groove. The provision of a groove allows the subsequent attachment of a sealing material within the groove. It is conceivable that the groove is configured with an undercut into which the sealing material can flow in order to ensure a firm connection with the connection element. Against this background, a groove could also define a cavity to increase the stability of the terminal element. The groove could be designed as a defined vulnerability.
Das Filtermedium könnte als Vliesstoff ausgestaltet sein. Die Verwendung eines Vliesstoffes erlaubt eine problemlose Einstellung des Filtermediums im Hinblick auf seine Porosität, da Vliesstoffe in nahezu allen Porositäten kommerziell problemlos erhältlich sind.The filter medium could be configured as a nonwoven fabric. The use of a nonwoven fabric allows easy adjustment of the filter medium in terms of its porosity, since nonwovens are commercially available in virtually all porosities.
Der Vliesstoff könnte aus thermoplastischen Fasern bestehen. Die Verwendung thermoplastischer Fasern erlaubt ein Verschmelzen und damit eine stoffschlüssige Verbindung des Filtermediums mit einem Anschlusselement, da sowohl Filtermedium als auch Anschlusselement erweichen können. Die
Verbindung kann durch ein Verfahren hergestellt werden, bei dem das Anschlusselement in einem erhitzten Formwerkzeug angeordnet wird und das Filtermedium mit definierter Kraft gegen das Anschlusselement gepresst wird. Gegebenenfalls kann das Filtermedium und/oder das Anschlusselement durch Rotationsbewegungen mit seinem Fügepartner verbunden werden. Dabei trägt die Rotation dazu bei, dass die Fügepartner sich miteinander verbinden und gegenseitig durchdringen. Vor diesem Hintergrund ist denkbar, dass die thermischen Verfahren Reibschweißverfahren, Ultraschallschweißverfahren oder Verfahren umfassen, welche Mikrowellenstrahlung einsetzen.The nonwoven fabric could consist of thermoplastic fibers. The use of thermoplastic fibers allows a fusion and thus a cohesive connection of the filter medium with a connection element, since both filter medium and connection element can soften. The Connection can be made by a method in which the connection element is arranged in a heated mold and the filter medium is pressed against the connection element with a defined force. Optionally, the filter medium and / or the connecting element can be connected by rotational movements with its joining partner. The rotation contributes to the fact that the joining partners connect with each other and penetrate each other. Against this background, it is conceivable that the thermal methods comprise friction welding methods, ultrasonic welding methods or methods which use microwave radiation.
Dem Filtermedium könnte ein Vorfilter zugeordnet sein. Der Vorfilter realisiert vorteilhaft eine Vorabscheidung bestimmter Partikel, wodurch die Lebensdauer des eigentlichen Filtermediums verlängert werden kann. Als Vorfilter kann bevorzugt ein Spinnvlies verwendet werden, welches ein Flächengewicht von 30 bis 200 g/m2 aufweist. Ein solches Spinnvlies hat sich als besonders gebrauchstauglich bei Anströmung des Filterelements mit flüssigen Medien erwiesen. Dieses Spinnvlies weist eine ausreichende Festigkeit auf, und neigt nicht zum Zerreißen. Denkbar ist auch, einen naßgelegten Vliesstoff als Vorfilter zu verwenden. Ein solcher Vliesstoff ist besonders kostengünstig.The filter medium could be assigned a pre-filter. The pre-filter advantageously realizes a pre-separation of certain particles, whereby the life of the actual filter medium can be extended. As a pre-filter may preferably be used a spunbonded nonwoven, which has a basis weight of 30 to 200 g / m 2 . Such a spunbonded fabric has proven to be particularly suitable for use when the filter element flows with liquid media. This spunbonded fabric has sufficient strength and is not prone to rupture. It is also conceivable to use a wet-laid nonwoven fabric as a pre-filter. Such a nonwoven fabric is particularly inexpensive.
Der Vorfilter könnte umfänglich um ein zylinderförmig ausgestaltetes Filtermedium angeordnet und mit diesem durch thermische Schweißverfahren punktuell oder linienförmig verbunden sein, um eine feste Verbindung herzustellen. Wenn das Filtermedium Falten aufweist, fungiert der Vorfilter zusätzlich als Faltenstabilisierung.The pre-filter could be arranged circumferentially around a cylinder-shaped filter medium and be connected to this point by thermal welding or point-line in order to establish a firm connection. If the filter medium has wrinkles, the pre-filter also acts as a wrinkle stabilizer.
Das Filtermedium könnte als sternförmiger Faltenbalg ausgestaltet sein. Die Vorkehrung von Falten im Filtermedium erhöht dessen effektive Filterfläche. Die relative Beabstandung der Falten zueinander könnte durch ein angeschweißtes Bändchen erfolgen, welches eine Breite zwischen 4 und 8 mm
aufweist. Dabei könnten pro Filterelement 1 bis 4 Bändchen vorgesehen sein. Diese Dimensionierungen bzw. diese Anzahl haben sich als besonders vorteilhaft im Hinblick auf die Stabilität des Filterelements bei der Filtration von Flüssigkeiten erwiesen. Das Bändchen könnte mit den Faltenspitzen durch thermische Schweißverfahren wie Ultraschallverschweißen oderThe filter medium could be designed as a star-shaped bellows. The provision of folds in the filter medium increases its effective filter area. The relative spacing of the pleats to each other could be done by a welded ribbon, which has a width between 4 and 8 mm having. It could be provided per filter element 1 to 4 bands. These dimensions or this number have proven to be particularly advantageous in terms of the stability of the filter element in the filtration of liquids. The ribbon could be combined with the pleat tips by thermal welding techniques such as ultrasonic welding or
Laserschweißen verbunden sein. Vor diesem Hintergrund ist denkbar, den Vorfilter als Faltenstabilisierung zu verwenden. Dabei könnte der Vorfilter mit einigen oder allen Faltenspitzen thermisch verschweißt sein. Bei einer solchen Ausgestaltung des Filtermediums könnte das Anschlusselement ein Sternprofil aufweisen. Das Sternprofil könnte die Beabstandung der Falten des Filtermediums stabilisieren.Laser welding be connected. Against this background, it is conceivable to use the prefilter as a wrinkle stabilizer. In this case, the prefilter could be thermally welded to some or all pleat tips. In such an embodiment of the filter medium, the connecting element could have a star profile. The star profile could stabilize the spacing of the pleats of the filter medium.
Es gibt nun verschiedene Möglichkeiten, die Lehre der vorliegenden Erfindung auf vorteilhafte Weise auszugestalten und weiter zu bilden. Dazu ist einerseits auf die nachgeordneten Ansprüche, andererseits auf die nachfolgendeThere are now various ways to embody the teaching of the present invention in an advantageous manner and to further develop. This is on the one hand to the subordinate claims, on the other hand, the following
Erläuterung eines bevorzugten Ausführungsbeispiels der Erfindung anhand der Zeichnung zu verweisen.Explanation of a preferred embodiment of the invention with reference to the drawing.
In Verbindung mit der Erläuterung des bevorzugten Ausführungsbeispiels der Erfindung anhand der Zeichnung werden auch im Allgemeinen bevorzugte Ausgestaltungen der Lehre erläutert.In conjunction with the explanation of the preferred embodiment of the invention with reference to the drawings, generally preferred embodiments of the teaching are also explained.
Kurzbeschreibung der ZeichnungBrief description of the drawing
In der Zeichnung zeigt die einzigeIn the drawing shows the only one
Fig. ein sternförmiges Filterelement mit Anschlusselementen, die als Endkappen ausgebildet sind.
Ausführung der ErfindungFig. A star-shaped filter element with connection elements, which are designed as end caps. Embodiment of the invention
Die einzige Fig. zeigt ein Filterelement mit einem Filtermedium 1 und ein mit dem Filterelement verbundenes Anschlusselement 2. Das Anschlusselement 2 kann mit dem Filtermedium 1 stoffschlüssig verbunden sein. DasThe sole FIGURE shows a filter element with a filter medium 1 and a connection element 2 connected to the filter element. The connection element 2 can be connected to the filter medium 1 in a materially bonded manner. The
Anschlusselement 2 weist zwei unterschiedliche Dichtungsmittel 3 und 4 auf, welche sich in zwei unterschiedlichen Richtungen zur dichtenden Anlage an jeweils ein Widerlager erstrecken.Connecting element 2 has two different sealing means 3 and 4, which extend in two different directions for sealing contact with each abutment.
Das Filtermedium 1 ist zylinderförmig unter Ausbildung eines axialenThe filter medium 1 is cylindrical, forming an axial
Durchgangs 5 ausgestaltet. Dabei ist jeweils ein Anschlusselement 2 an den Stirnseiten des Zylinders angeordnet. Das Dichtungsmittel 4 erstreckt sich in Richtung des axialen Durchgangs 5, nämlich in Richtung der Symmetrieachse A, d. h. in radialer Richtung nach innen. Das Dichtungsmittel 3 erstreckt sich in radialer Richtung nach außen.Passage 5 designed. In each case, a connection element 2 is arranged on the end faces of the cylinder. The sealing means 4 extends in the direction of the axial passage 5, namely in the direction of the axis of symmetry A, d. H. in the radial direction inwards. The sealing means 3 extends in the radial direction to the outside.
Die Dichtungsmittel 3, 4 sind im konkreten Fall konzentrisch angeordnet. Die Dichtungsmittel 3, welche als kreisförmige Ausstülpungen ausgestaltet sind, verjüngen sich jeweils in der Richtung, in der sie an dichtende Flächen angelegt werden sollen.The sealing means 3, 4 are arranged concentrically in the specific case. The sealing means 3, which are designed as circular protuberances, each taper in the direction in which they are to be applied to sealing surfaces.
Dabei kann der axiale Durchgang 5 durch ein rohrförmiges Element ausgefüllt werden, welches an den Dichtungsmitteln 4 zur Anlage kommt und als Widerlager fungiert. Die Dichtungsmittel 4 sind als Gewinde ausgebildet, in welches ein Widerlager dicht eingeschraubt werden kann. Aufgrund der Duktilität der Gewindegänge ist eine dichtende Anlage am eingeschraubten Widerlager sichergestellt.In this case, the axial passage 5 can be filled by a tubular element which comes into contact with the sealing means 4 and acts as an abutment. The sealing means 4 are formed as a thread, in which an abutment can be screwed tight. Due to the ductility of the threads a sealing contact with the screwed abutment is ensured.
Die Dichtungsmittel 3 können gegen die Innenwandung eines zylinderförmigen Gehäuses angelegt werden.
Die Dichtungsmittel 3, 4 und das Anschlusselement 2 sind integral ausgebildet. Die Dichtungsmittel 3 sind als halbkreisförmige Ausstülpungen ausgestaltet. Die Ausstülpungen 3 sind als umlaufende Dichtlippe ausgestaltet.The sealing means 3 can be applied against the inner wall of a cylindrical housing. The sealing means 3, 4 and the connection element 2 are integrally formed. The sealing means 3 are designed as semicircular protuberances. The protuberances 3 are designed as circumferential sealing lip.
Das Anschlusselement 2 und die Dichtungsmittel 3, 4 sind aus Polyurethan gefertigt.The connecting element 2 and the sealing means 3, 4 are made of polyurethane.
Das Filtermedium 1 ist als Vliesstoff ausgestaltet und besteht aus thermoplastischen Fasern. Dem Filtermedium 1 ist ein Vorfilter 6 zugeordnet, welcher ein Spinnvlies umfasst. Der Vorfilter 6 ist unterbrochen dargestellt, hüllt jedoch das Filtermedium 1 vollumfänglich ein.The filter medium 1 is configured as a nonwoven fabric and consists of thermoplastic fibers. The filter medium 1 is associated with a pre-filter 6, which comprises a spunbonded nonwoven. The pre-filter 6 is shown interrupted, but envelops the filter medium 1 in full.
Das Filtermedium 1 ist als sternförmiger Faltenbalg ausgestaltet.The filter medium 1 is designed as a star-shaped bellows.
Hinsichtlich weiterer vorteilhafter Ausgestaltungen und Weiterbildungen der erfindungsgemäßen Lehre wird einerseits auf den allgemeinen Teil der Beschreibung und andererseits auf die Patentansprüche verwiesen.With regard to further advantageous embodiments and developments of the teaching of the invention reference is made on the one hand to the general part of the description and on the other hand to the claims.
Abschließend sei ganz besonders hervor gehoben, dass das zuvor rein willkürlich gewählte Ausführungsbeispiel lediglich zur Erörterung der erfindungsgemäßen Lehre dient, diese jedoch nicht auf dieses Ausführungsbeispiel einschränkt.
Finally, it should be particularly emphasized that the previously purely arbitrary chosen embodiment is only for the purpose of discussion of the teaching of the invention, but this does not limit to this embodiment.
Claims
1. Filterelement, umfassend ein Filtermedium (1 ) und zumindest ein mit dem Filtermedium (1) verbundenes Anschlusselement (2), wobei das Anschlusselement (2) Dichtungsmittel (3, 4) aufweist, dadurch gekennzeichnet, dass sich die Dichtungsmittel (3, 4) eines Anschlusselements (2) zumindest in zwei unterschiedlichen Richtungen zur dichtenden Anlage an ein Widerlager erstrecken.A filter element comprising a filter medium (1) and at least one connection element (2) connected to the filter medium (1), wherein the connection element (2) has sealing means (3, 4), characterized in that the sealing means (3, 4 ) of a connection element (2) extend at least in two different directions for sealing engagement with an abutment.
2. Filterelement, umfassend ein Filtermedium (1 ) und zumindest ein mit dem Filtermedium (1) verbundenes Anschlusselement (2), wobei das Anschlusselement (2) Dichtungsmittel (3, 4) aufweist, dadurch gekennzeichnet, dass die Dichtungsmittel (3, 4) und das Anschlusselement (2) integral ausgebildet sind.2. Filter element, comprising a filter medium (1) and at least one connected to the filter medium (1) connecting element (2), wherein the connecting element (2) sealing means (3, 4), characterized in that the sealing means (3, 4) and the connecting element (2) are integrally formed.
3. Filterelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Filtermedium (1) zylinderförmig unter Ausbildung eines axialen Durchgangs (5) ausgestaltet ist und zumindest ein Anschlusselement (2) an den Stirnseiten des Zylinders angeordnet ist.3. Filter element according to claim 1 or 2, characterized in that the filter medium (1) is cylindrically configured to form an axial passage (5) and at least one connection element (2) is arranged on the end faces of the cylinder.
4. Filterelement nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass sich zumindest ein Dichtungsmittel (4) in Richtung des axialen Durchgangs (5) erstreckt.4. Filter element according to one of claims 1 to 3, characterized in that extending at least one sealing means (4) in the direction of the axial passage (5).
5. Filterelement nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass sich die Dichtungsmittel (3, 4) in zueinander orthogonalen Richtungen erstrecken. 5. Filter element according to one of claims 1 to 4, characterized in that the sealing means (3, 4) extend in mutually orthogonal directions.
6. Filterelement nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Dichtungsmittel (3, 4) als Ausstülpungen ausgestaltet sind.6. Filter element according to one of claims 1 to 5, characterized in that the sealing means (3, 4) are designed as protuberances.
7. Filterelement nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass zumindest ein Anschlusselement (2) aus einem vergießbaren oder spritzgießbaren Werkstoff gefertigt ist.7. Filter element according to one of claims 1 to 6, characterized in that at least one connecting element (2) is made of a castable or injection-moldable material.
8. Filterelement nach Anspruch 7, dadurch gekennzeichnet, dass die Werkstoffe Polyurethan umfassen.8. Filter element according to claim 7, characterized in that the materials comprise polyurethane.
9. Filterelement nach einem der Ansprüche 3 bis 8, dadurch gekennzeichnet, dass zumindest ein Anschlusselement (2) mit einem Gewinde versehen ist.9. Filter element according to one of claims 3 to 8, characterized in that at least one connecting element (2) is provided with a thread.
10. Filterelement nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass zumindest ein Anschlusselement (2) mit einer Nut versehen ist.10. Filter element according to one of claims 1 to 9, characterized in that at least one connection element (2) is provided with a groove.
1 1 . Filterelement nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass das Filtermedium (1) als Vliesstoff ausgestaltet ist.1 1. Filter element according to one of claims 1 to 10, characterized in that the filter medium (1) is designed as a nonwoven fabric.
12. Filterelement nach Anspruch 1 1 , dadurch gekennzeichnet, dass der Vliesstoff aus thermoplastischen Fasern besteht.12. Filter element according to claim 1 1, characterized in that the nonwoven fabric consists of thermoplastic fibers.
13. Filterelement nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass dem Filtermedium (1 ) ein Vorfilter (6) zugeordnet ist. 13. Filter element according to one of claims 1 to 12, characterized in that the filter medium (1) is associated with a pre-filter (6).
14. Filterelement nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass das Filtermedium (1 ) als sternförmiger Faltenbalg ausgestaltet ist. 14. Filter element according to one of claims 1 to 13, characterized in that the filter medium (1) is designed as a star-shaped bellows.
Applications Claiming Priority (2)
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DE200610003949 DE102006003949B4 (en) | 2006-01-26 | 2006-01-26 | Filter element with connection element |
DE102006003949.1 | 2006-01-26 |
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WO2007085427A1 true WO2007085427A1 (en) | 2007-08-02 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2008015088A1 (en) * | 2006-08-03 | 2008-02-07 | Mann+Hummel Gmbh | Filter unit having a conical thread |
WO2016058657A1 (en) * | 2014-10-16 | 2016-04-21 | Daimler Ag | Filter device for an internal combustion engine, and filter insert for a filter device of this type |
USRE46080E1 (en) | 2004-06-17 | 2016-07-26 | Hydac Filtertechnik Gmbh | Filtering apparatus and filter element |
EP3300788A1 (en) * | 2011-02-11 | 2018-04-04 | Briggs & Stratton Corporation | Air filter assembly for an engine |
WO2018175438A1 (en) * | 2017-03-20 | 2018-09-27 | Donaldson Company, Inc. | System comprising a connector for coupling to a fluid filter element, fluid filter element, and process for producing same |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102009008575B4 (en) | 2009-02-12 | 2013-07-25 | Carl Freudenberg Kg | Filter cartridge with a filter hose head |
DE102012017890A1 (en) | 2012-09-11 | 2014-03-13 | Carl Freudenberg Kg | filter cartridge |
DE102013014507A1 (en) * | 2013-09-02 | 2015-03-05 | Mann+Hummel Gmbh | Filter element and filter system with a filter element |
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USRE46080E1 (en) | 2004-06-17 | 2016-07-26 | Hydac Filtertechnik Gmbh | Filtering apparatus and filter element |
WO2008015088A1 (en) * | 2006-08-03 | 2008-02-07 | Mann+Hummel Gmbh | Filter unit having a conical thread |
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Also Published As
Publication number | Publication date |
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DE102006003949A1 (en) | 2007-08-09 |
DE102006003949B4 (en) | 2008-04-30 |
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