[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

WO1997048470A2 - Filter - Google Patents

Filter Download PDF

Info

Publication number
WO1997048470A2
WO1997048470A2 PCT/EP1997/003076 EP9703076W WO9748470A2 WO 1997048470 A2 WO1997048470 A2 WO 1997048470A2 EP 9703076 W EP9703076 W EP 9703076W WO 9748470 A2 WO9748470 A2 WO 9748470A2
Authority
WO
WIPO (PCT)
Prior art keywords
filter
medium
film hinges
star
support medium
Prior art date
Application number
PCT/EP1997/003076
Other languages
German (de)
French (fr)
Other versions
WO1997048470A3 (en
Inventor
Martin Schetter
Martin Weindorf
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 JP10502222A priority Critical patent/JP2000512206A/en
Priority to BR9709846A priority patent/BR9709846A/en
Publication of WO1997048470A2 publication Critical patent/WO1997048470A2/en
Publication of WO1997048470A3 publication Critical patent/WO1997048470A3/en

Links

Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D27/00—Cartridge filters of the throw-away type
    • B01D27/04—Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper
    • B01D27/06—Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper with corrugated, folded or wound material
    • 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
    • B01D29/01—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 flat filtering elements
    • B01D29/05—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 flat filtering elements supported
    • B01D29/07—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 flat filtering elements supported with corrugated, folded or wound filtering sheets
    • 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
    • B01D29/111—Making filtering elements
    • 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
    • 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
    • B01D29/50—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 multiple filtering elements, characterised by their mutual disposition
    • 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
    • B01D29/50—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 multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—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 multiple filtering elements, characterised by their mutual disposition in parallel connection
    • B01D29/54—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 multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/147—Bypass or safety valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/153—Anti-leakage or anti-return valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/40—Special measures for connecting different parts of the filter
    • B01D2201/4084—Snap or Seeger ring connecting means

Definitions

  • the invention relates to a filter according to the preamble of claim 1
  • filters are known, for example by their use in the oil circuit of internal combustion engines is disadvantageous in that the filter is composed of various materials. This poses problems particularly with regard to a later disposal of the filter.
  • this object is achieved in that a filter with at least one substantially rectangular filter medium and at least one substantially rectangular support medium, which is attached to the filter medium as a support means, the connected media being folded in a star shape and sealingly connected at their contacting ends , whereby the end faces of the filter have a sealing cover.
  • the use of an essentially rectangular filter medium creates the possibility, for example, of rolling this filter medium from an endless roll during manufacture and inserting it in sections into an injection molding tool, so that the supporting medium also essentially can be sprayed onto the filter medium at right angles.
  • the simple design of the injection mold is advantageous here. If the support medium was only sprayed on after the star-shaped folding, an incomparably more expensive injection molding tool would be required
  • the filter medium consists of paper, nonwoven or screen fabric.
  • the screen fabric is made of metal or plastic.
  • the material specification given here suitably depends on the materials used for the support medium or the covers, in order to meet the requirements for a pure material design
  • the covers consist of metal, plastic or paper.
  • the choice of material for the covers is suitably made in coordination with the materials for both the sieve and the support medium
  • the support medium has film hinges, these film hinges alternately permitting a concave or convex fold with respect to the star axis.
  • This mutual arrangement of hinges makes the star-shaped folding of the plane filter prefabricated in an injection molding device possible only because the folding takes place on the material constrictions of the film hinges
  • the support medium in the area of the film hinges in particular in the area of the film hinges, which permit convex folding, have angular cutouts which define the angle of the star fold.
  • Such a miter ensures a regular appearance of the filter body, since such multilayer structures would otherwise tend to fold irregularly, which would lead to undefined contours of the filter.
  • Another advantage here is that, for example, the contacting ends can be sealed in a defined manner
  • the touching ends are glued or welded. This leads to secure seal connections and consequently to a filter that is safe to use. Furthermore, it can advantageously be provided that the covers are welded, glued or snapped onto the filter and support medium. Depending on the material pairing, these connections ensure that an inexpensive and safe filter is created
  • At least one of the covers contains a filter bypass valve. This ensures that in the event that a filter element becomes clogged, the oil flow within the internal combustion engine does not stop
  • FIG. 2 shows the detail y from FIG. 1
  • Figure 3 is a side view of the support medium
  • FIG. 4 shows the detail x from FIG. 3
  • Figure 5 is a plan view of the unfolded filter element
  • Figure 6 shows a section through a filter housing with two screen star inserts
  • FIG. 1 A star-shaped filter is shown in section in FIG. 1.
  • the structure of the filter essentially consists of the rectangular filter medium 2 and the support means 3.
  • the filter medium 2 is applied on the outside in relation to the star axis, but it would also be conceivable to apply it within the support medium 3.
  • the support means 3 has, in particular in the area of its film hinges 4, which allow convex folding with respect to the star axis, recesses which allow a defined folding.
  • FIG. 4 it is clear that the film hinges 4 alternate in such a way that, to enable the star fold, a film hinge 4 a convex fold 6 with respect to the star axis, the following film hinge 4 allow a concave fold 7.
  • the detail x from FIG. 3 is shown enlarged in FIG. 4.
  • the angular cutouts 8 in the support medium 3 required to achieve the convex folding 6 are shown in FIG. 4 in the specific exemplary embodiment at an angle of 60 degrees in relation to the unfolded, just extended support medium 3.
  • a polyester fabric which in this embodiment comes from a roll, inserted into an injection mold.
  • the filter medium 2 is separated from the roll either before or after the casting process.
  • This injection molding process creates the composite filter, which is essentially right-angled and consequently flat directly after the casting process.
  • the ends 9 from FIG. 5 are glued or welded after the folding process.
  • so-called covers 5 are attached to its end faces, which are preferably made of the same material as filter medium 2 and / or support medium 3 consist
  • a device for filtering 01 as can be seen in FIG. 6, is shown.
  • This device comprises a housing 10, a housing cover 11, which can be removed or installed for changing the filter by means of a locking device 22 and by means of a spring 16
  • Filter inserts la and lb clamped against the housing and seals the housing 10 by means of a seal 20.
  • This device further comprises an inlet 13 and an outlet 14.
  • the exemplary embodiment shown in FIG. 6 comprises two filters la and lb, which also have different separation limits.
  • the first filter la with the coarser filter medium, which consequently allows larger particles to pass through, has in one of its covers 5 a filter bypass valve 12, which essentially consists of a valve disk 17 and a valve spring 18.
  • the first filter is separated from the second filter 1b located in the housing 10, which has a finer filter medium 2, by means of a cover 5 and an on-off valve 15 integrated therein.
  • the separation limit of the first filter is in a range of approximately 60-65 ⁇ m.
  • the separation limit of the second filter is in the range of approximately 40 ⁇ m

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Filtration Of Liquid (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The description relates to a filter with at least one substantially rectangular filter medium (2) and at least one substantially rectangular supporting medium (3) applied as a support to the filter medium, where the connected media are folded in a star shape and sealed together at their contacting ends (9) and the faces of the filter are given a sealing cover.

Description

Filter filter
Die Erfindung betrifft einen Filter gemäß dem Oberbegriff des Patentanspruchs 1 Derartige Filter sind bekannt, zum Beispiel durch ihren Einsatz im Olkreislauf von Verbrennungskraftmaschinen Will man derartige Filter, die aus einem Metallstutzgewebe und einem Kunststoffsiebgewebe mit Metallinnenrohr und Metallendscheiben zusammengesetzt sind, in zeitgemäßen Verbrennungskraftmaschinen einsetzen, so ist daran nachteilig, daß das Filter aus den verschiedenartigsten Materialien zusammengesetzt ist. Dies bereitet insbesondere im Hinblick auf eine spatere Entsorgung des Filters Probleme.The invention relates to a filter according to the preamble of claim 1 Such filters are known, for example by their use in the oil circuit of internal combustion engines is disadvantageous in that the filter is composed of various materials. This poses problems particularly with regard to a later disposal of the filter.
Man konnte nun das gesamte Filter aus Metall fertigen Dies ist aber einmal kostenaufwendig in der Herstellung, es wurde das Filter daher verteuern. Zum anderen wurde dadurch das Gesamtgewicht des Filters steigen, was im Hinblick auf die Gewichtssituation der Verbrennungskraftmaschine unvorteilhaft ist.It was now possible to manufacture the entire filter from metal. However, this is costly to manufacture, and the filter was therefore made more expensive. On the other hand, this would increase the total weight of the filter, which is disadvantageous with regard to the weight situation of the internal combustion engine.
Es ist somit Aufgabe der Erfindung, ein Filter der eingangs genannten Art dahingehend zu verbessern, daß ein einfaches, billiges Filter entsteht, das am Ende seiner Lebensdauer wenig aufwendig entsorgt werden kannIt is therefore an object of the invention to improve a filter of the type mentioned above in such a way that a simple, inexpensive filter is produced which can be disposed of at the end of its life with little effort
Erfindungsgemaß wird diese Aufgabe dadurch gelost, daß ein Filter mit wenigstens einem im wesentlichen rechtwinkligen Filtermedium und wenigstens einem im wesentlichen rechtwinkligen Stutzmedium, welches als Stutzmittel auf dem Filtermedium angebracht ist, wobei die verbundenen Medien sternförmig gefaltet sind und an ihren sich berührenden Enden dichtend verbunden sind, wobei die Stirnseiten des Filters eine dichtende Abdeckung aufweisen, entsteht Durch die Verwendung eines im wesentlichen rechtwinkligen Filtermediums wird die Möglichkeit geschaffen, bei der Herstellung zum Beispiel von einer Endlosrolle dieses Filtermedium abzurollen und abschnittsweise in ein Spritzgußwerkzeug einzuführen, so daß das Stutzmedium ebenfalls im wesentlichen rechtwinklig auf das Filtermedium aufgespritzt werden kann. Von Vorteil hierbei ist die einfache Ausgestaltung des Spritzgießwerkzeugs. Wurde das Aufspritzen des Stutzmediums erst nach dem sternförmigen Falten erfolgen, wäre ein ungleich kostenaufwendigeres Spritzgießwerkzeug von notenAccording to the invention, this object is achieved in that a filter with at least one substantially rectangular filter medium and at least one substantially rectangular support medium, which is attached to the filter medium as a support means, the connected media being folded in a star shape and sealingly connected at their contacting ends , whereby the end faces of the filter have a sealing cover. The use of an essentially rectangular filter medium creates the possibility, for example, of rolling this filter medium from an endless roll during manufacture and inserting it in sections into an injection molding tool, so that the supporting medium also essentially can be sprayed onto the filter medium at right angles. The simple design of the injection mold is advantageous here. If the support medium was only sprayed on after the star-shaped folding, an incomparably more expensive injection molding tool would be required
Eine erfindungsgemaße Weiterbildung sieht vor, daß das Filtermedium aus Papier, Vlies oder Siebgewebe besteht. Hier ist je nach Trenngrenze eine besonders einfache Auswahl des entsprechenden Filtermediums realisierbar Weiterhin kann man vorteilhafterweise vorsehen, daß das Siebgewebe aus Metall oder Kunststoff besteht Die hier angegebene Materialangabe richtet sich geeigneterweise nach den verwendeten Materialien für das Stutzmedium bzw die Abdeckungen, um so den Anforderungen an eine sortenreine Materialgestaltung zu genügenA further development according to the invention provides that the filter medium consists of paper, nonwoven or screen fabric. Depending on the separation limit, a particularly simple selection of the appropriate filter medium can be implemented here Furthermore, one can advantageously provide that the screen fabric is made of metal or plastic. The material specification given here suitably depends on the materials used for the support medium or the covers, in order to meet the requirements for a pure material design
Eine andere vorteilhafte Weiterbildung der Erfindung sieht vor, daß die Abdeckungen aus Metall, Kunststoff oder Papier bestehen Die Materialauswahl der Abdeckungen erfolgt geeigneterweise in Abstimmung mit den Materialien für sowohl das Sieb als auch das StutzmediumAnother advantageous development of the invention provides that the covers consist of metal, plastic or paper. The choice of material for the covers is suitably made in coordination with the materials for both the sieve and the support medium
Weiterhin kann man vorteilhafterweise vorsehen, daß das Stύtzmedium Filmscharniere aufweist, wobei diese Filmscharniere abwechselnd eine konkave bzw konvexe Faltung bezuglich der Sternachse zulassen. Durch diese wechselseitige Anordnung von Scharnieren wird die sternförmige Faltung des in einer Spritzgießvorrichtung vorgefertigten ebenen Filters erst möglich, da die Faltung an den Materialeinschnurungen der Filmscharniere erfolgtFurthermore, it can advantageously be provided that the support medium has film hinges, these film hinges alternately permitting a concave or convex fold with respect to the star axis. This mutual arrangement of hinges makes the star-shaped folding of the plane filter prefabricated in an injection molding device possible only because the folding takes place on the material constrictions of the film hinges
In einer anderen vorteilhaften Weiterbildung der Erfindung ist vorgesehen, daß das Stutzmedium im Bereich der Filmscharniere, insbesondere im Bereich der Filmscharniere, die eine konvexe Faltung zulassen, winklige Aussparungen aufweisen, die den Winkel der Sternfaltung definieren. Eine derartige Gehrung sorgt für ein regelmäßiges Erscheinungsbild des Filterkorpers, da solch mehrlagigen Strukturen anderenfalls zur unregelmäßigen Faltungen neigen, was zu Undefinierten Konturen des Filters fuhren wurde. Ein weiterer Vorteil hierbei ist, daß zum Beispiels die sich berührenden Enden definiert abgedichtet werden könnenAnother advantageous development of the invention provides that the support medium in the area of the film hinges, in particular in the area of the film hinges, which permit convex folding, have angular cutouts which define the angle of the star fold. Such a miter ensures a regular appearance of the filter body, since such multilayer structures would otherwise tend to fold irregularly, which would lead to undefined contours of the filter. Another advantage here is that, for example, the contacting ends can be sealed in a defined manner
In einer anderer vorteilhaften Weiterbildung ist vorgesehen, daß die sich berührenden Enden geklebt oder geschweißt sind. Dies fuhrt zu sicheren Dichtungsverbindungen und in der Folge zu einem in der Anwendung sicheren Filter Weiterhin kann man vorteilhafterweise vorsehen, daß die Abdeckungen mit dem Filter und Stutzmedium verschweißt, verklebt oder verschnappt sind. In Abhängigkeit von der Materialpaarung stellen diese Verbindungen sicher, daß ein kostengünstig und sicheres Filter entstehtAnother advantageous development provides that the touching ends are glued or welded. This leads to secure seal connections and consequently to a filter that is safe to use. Furthermore, it can advantageously be provided that the covers are welded, glued or snapped onto the filter and support medium. Depending on the material pairing, these connections ensure that an inexpensive and safe filter is created
Weiterhin kann man vorteilhafterweise vorsehen, daß wenigstens eine der Abdeckungen ein Filterumgehungsventil enthalt. Dies sorgt dafür, daß für den Fall, daß sich ein Filterelement zusetzt, der Olstrom innerhalb der Verbrennungskraftmaschine nicht abreißtFurthermore, it can advantageously be provided that at least one of the covers contains a filter bypass valve. This ensures that in the event that a filter element becomes clogged, the oil flow within the internal combustion engine does not stop
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 Ausfuhrungsform der Erfindung und auf anderen Gebieten verwirklicht sein und vorteilhafte sowie für sich schutzfahige Ausführungen darstellen können, für die hier Schutz beansprucht wird.These and other features of preferred developments of the invention emerge 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 beneficial as well as representable versions for which protection is claimed here.
Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im folgenden naher erläutertEmbodiments of the invention are shown in the drawings and are explained in more detail below
Die Zeichnungen zeigen'The drawings show '
Figur 1 einen Schnitt durch ein sternförmig gefaltetes Filter1 shows a section through a filter folded in a star shape
Figur 2 die Einzelheit y aus Figur 1FIG. 2 shows the detail y from FIG. 1
Figur 3 eine Seitenansicht des StutzmediumsFigure 3 is a side view of the support medium
Figur 4 die Einzelheit x aus Figur 3FIG. 4 shows the detail x from FIG. 3
Figur 5 eine Draufsicht des ungefalteten FilterelementsFigure 5 is a plan view of the unfolded filter element
Figur 6 einen Schnitt durch ein Filtergehäuse mit zwei SiebsterneinsatzenFigure 6 shows a section through a filter housing with two screen star inserts
In Figur 1 ist ein sternförmig gefaltetes Filter im Schnitt dargestellt Wie in Einzelheit y vergrößert herausgestellt, laßt sich erkennen, daß der Aufbau des Filters im wesentlichen aus dem rechtwinkligen Filtermedium 2 und dem Stützmittel 3 besteht Wie in Figur 2 zu erkennen ist, wird in dieser speziellen Ausführungsform das Filtermittel 2 bezogen auf die Sternachse außen aufgebracht, denkbar wäre aber auch ein Aufbringen innerhalb des Stutzmittels 3. Stützmittel 3 umfasst, wie in Figur 5 dargestellt, z.B. in Längs- und Querrichtung angeordnete Rippen, die die Eigenstabilität des Filters erhöhen. Das Stützmittel 3 hat insbesondere im Bereich seiner, bezüglich der Sternachse eine konvexe Faltung zulassenden Filmscharniere 4 winklige Ausspaarungen, die eine definierte Faltung zulassen. In Figur 3 wird deutlich, daß sich die Filmscharniere 4 in der Weise abwechseln, daß, zur Ermoglichung der Sternfaltung, ein Filmscharnier 4 eine, bezogen auf die Sternachse, konvexe Faltung 6, das folgende Filmscharnier 4 eine konkave Faltung 7 zulassen. In Figur 4 wird die Einzelheit x aus Figur 3 vergrößert dargestellt Hier wird deutlich, wie sich die unterschiedlichen Filmscharniere 4 abwechseln Die zur Erzielung der konvexen Faltung 6 notwendigen winkligen Aussparungen 8 im Stutzmedium 3 werden in Figur 4 im konkreten Ausführungsbeispiel mit einem Winkel von 60 Grad bezogen auf das nicht gefaltete, eben ausgestreckte Stutzmedium 3 dargestellt Das z B in einem Spritzgießvorgang auf das eben ausgelegte, im wesentlichen rechtwinklige Filtermedium 2 aufgespritzte Stützmedium 3 wird in Figur 5 dargestellt. Hier wird beispielsweise ein Polyester-Gewebe, das in dieser Ausführungsform von einer vorgelegten Rolle stammt in eine Spritzgießform eingeführt. Das Filtermedium 2 wird entweder vor oder nach dem Gießvorgang von der Rolle getrennt Durch diesen Spritzgießvorgang entsteht der Verbundfilter, der direkt nach dem Gießvorgang im wesentlichen rechtwinklig und folgerichtig eben ist Durch die sich in Längsrichtung des Filters abwechselnd angeordneten Filmscharniere 4 ist es möglich, den Filter z. B sternförmig zu falten Wie in Figur 1 dargestellt, werden die Enden 9 aus Figur 5 nach dem Faltvorgang verklebt oder verschweißt Zur Fertigstellung des Filters werden an dessen Stirnseiten sogenannte Abdeckungen 5 angebracht, die bevorzugt aus dem selben Material wie Filtermedium 2 und/oder Stutzmedium 3 bestehenA star-shaped filter is shown in section in FIG. 1. As shown enlarged in detail y, it can be seen that the structure of the filter essentially consists of the rectangular filter medium 2 and the support means 3. As can be seen in FIG In a special embodiment, the filter medium 2 is applied on the outside in relation to the star axis, but it would also be conceivable to apply it within the support medium 3. Support means 3, as shown in FIG. The support means 3 has, in particular in the area of its film hinges 4, which allow convex folding with respect to the star axis, recesses which allow a defined folding. In Figure 3 it is clear that the film hinges 4 alternate in such a way that, to enable the star fold, a film hinge 4 a convex fold 6 with respect to the star axis, the following film hinge 4 allow a concave fold 7. The detail x from FIG. 3 is shown enlarged in FIG. 4. Here it becomes clear how the different film hinges 4 alternate. The angular cutouts 8 in the support medium 3 required to achieve the convex folding 6 are shown in FIG. 4 in the specific exemplary embodiment at an angle of 60 degrees in relation to the unfolded, just extended support medium 3. The support medium 3, for example sprayed onto the flat, essentially rectangular filter medium 2 in an injection molding process, is shown in FIG. Here will for example, a polyester fabric, which in this embodiment comes from a roll, inserted into an injection mold. The filter medium 2 is separated from the roll either before or after the casting process.This injection molding process creates the composite filter, which is essentially right-angled and consequently flat directly after the casting process.The film hinges 4, which are alternately arranged in the longitudinal direction of the filter, enable the filter e.g. B to fold in a star shape As shown in FIG. 1, the ends 9 from FIG. 5 are glued or welded after the folding process. To complete the filter, so-called covers 5 are attached to its end faces, which are preferably made of the same material as filter medium 2 and / or support medium 3 consist
In einem Ausführungsbeispiel ist eine Vorrichtung zum Filtern von 01, wie in Figur 6 zu sehen ist, dargestellt Diese Vorrichtung umfasst ein Gehäuse 10, einen Gehausedeckel 1 1, der zum Filterwechsel mittels Schließvorrichtung 22 de- bzw. montierbar ist und mittels einer Feder 16 die Filtereinsatze la und lb gegen das Gehäuse verspannt und mittels einer Dichtung 20 das Gehäuse 10 abdichtet Weiter umfasst diese Vorrichtung einen Einlaß 13 sowie einen Auslaß 14 Das dargestellte Ausführungsbeispiel gemäß Figur 6 umfasst zwei Filter la und lb, die zudem über unterschiedliche Trenngrenzen verfugen. Das erste Filter la mit dem gröberen Filtermedium, das folglich größere Partikel passieren laßt, weist in einer seiner Abdeckungen 5 ein Filterumgehungsventil 12 auf, welches im wesentlichen aus einem Ventilteller 17 und einer Ventilfeder 18 besteht. Zum zweiten im Gehäuse 10 befindlichen Filter lb, das ein feineres Filtermedium 2 aufweist, ist das erste Filter mittels Abdeckung 5 und einem darin integrierten Einschaltventil 15 abgetrennt. Das Einschaltventil 15, das ebenfalls einen Ventilteller 17 und eine Ventilfeder 18 aufweist, schaltet das erste Filter erst ab z.B einem Betriebsuberdruck von 0,5 bar zu, wohingegen das im ersten Filter befindliche Umgehungsventil erst bei kritischen Betriebszustanden zuschaltet, um ein Trockenlaufen zu verhindern Die Reinolseite wird in der Vorrichtung von der Rohölseite mittels der Dichtung 19 und der Zentrier-Schnapp-Dicht- Verbindung getrennt Die Trenngrenze vom ersten Filter liegt in einem Bereich von etwa 60 - 65 μm Die Trenngrenze des zweiten Filters liegt im Bereich von etwa 40 μm In einer alternativen Ausgestaltung ist der Einsatz auch nur eines Filtereinsatzes im Gehäuse 10 möglich BezugszeichenIn one exemplary embodiment, a device for filtering 01, as can be seen in FIG. 6, is shown. This device comprises a housing 10, a housing cover 11, which can be removed or installed for changing the filter by means of a locking device 22 and by means of a spring 16 Filter inserts la and lb clamped against the housing and seals the housing 10 by means of a seal 20. This device further comprises an inlet 13 and an outlet 14. The exemplary embodiment shown in FIG. 6 comprises two filters la and lb, which also have different separation limits. The first filter la with the coarser filter medium, which consequently allows larger particles to pass through, has in one of its covers 5 a filter bypass valve 12, which essentially consists of a valve disk 17 and a valve spring 18. The first filter is separated from the second filter 1b located in the housing 10, which has a finer filter medium 2, by means of a cover 5 and an on-off valve 15 integrated therein. The on-off valve 15, which also has a valve disk 17 and a valve spring 18, only switches on the first filter from, for example, an operating pressure of 0.5 bar, whereas the bypass valve in the first filter only switches on in critical operating states in order to prevent dry running Reinol side is separated from the crude oil side in the device by means of the seal 19 and the centering snap-on connection. The separation limit of the first filter is in a range of approximately 60-65 μm. The separation limit of the second filter is in the range of approximately 40 μm In In an alternative embodiment, it is also possible to use only one filter insert in the housing 10 Reference numerals
la erstes Filter lb zweites Filterla first filter lb second filter
FiltermediumFilter medium
3 Stutzmittel3 socks
FilmscharnierFilm hinge
Abdeckung konvexe Faltung konkave FaltungCover convex fold concave fold
8 winklige Aussparung8 angled recess
Endenend up
10 Gehäuse10 housing
1 1 Gehausedeckel1 1 housing cover
12 Filterumgehungsventil12 filter bypass valve
13 Einlaß13 inlet
14 Auslaß14 outlet
15 Einschaltventil15 start valve
16 Feder16 spring
17 Ventilteller17 valve disc
18 Ventilfeder18 valve spring
19 Dichtung19 seal
20 Deckeldichtung20 cover gasket
21 Zentrier-Schnapp-Dicht- Verbindung21 Centering snap-seal connection
22 Schließvorrichtung 22 locking device

Claims

Patentansprüche claims
1 Filter, mit wenigstens einem im wesentlichen rechtwinkligen Filtermedium (2) und wenigstens einem im wesentlichen rechtwinkligen Stützmedium , welches als Stützmittel (3) auf dem Filtermedium (2) angebracht ist, wobei die verbundenen Medien sternförmig gefaltet sind und an ihren sich berührenden Enden (9) dichtend verbunden sind, wobei die Stirnseiten des Filters eine dichtende Abdeckung (5) aufweisen.1 filter, with at least one essentially right-angled filter medium (2) and at least one essentially right-angled support medium, which is attached as a support means (3) on the filter medium (2), the connected media being folded in a star shape and at their contacting ends ( 9) are sealingly connected, the end faces of the filter having a sealing cover (5).
2. Filter, nach Anspruch 1, dadurch gekennzeichnet, daß das Filtermedium (2) aus Papier, Vlies oder Siebgewebe besteht2. Filter, according to claim 1, characterized in that the filter medium (2) consists of paper, nonwoven or screen fabric
Filter, nach Anspruch 2, dadurch gekennzeichnet, daß das Siebgewebe aus Metall oder Kunststoff besteht.Filter according to claim 2, characterized in that the screen fabric consists of metal or plastic.
4. Filter, nach Anspruch 1, dadurch gekennzeichnet, daß die Abdeckungen (5) aus Metall, Kunststoff oder Papier bestehen.4. Filter, according to claim 1, characterized in that the covers (5) consist of metal, plastic or paper.
5. Filter, nach einem oder mehreren der vorgenannten Ansprüche, dadurch gekennzeichnet, daß das Stützmedium Filmscharniere 4 aufweist, wobei diese Filmschamiere (4) abwechselnd eine konkave (7) bzw. konvexe Faltung (6) bezüglich der Sternachse zulassen.5. Filter, according to one or more of the preceding claims, characterized in that the support medium has film hinges 4, said film hinges (4) alternately allowing a concave (7) or convex fold (6) with respect to the star axis.
6. Filter, nach Anspruch 5, dadurch gekennzeichnet, daß das Stützmedium im Bereich der Filmscharniere 4, insbesondere im Bereich der Filmscharniere (4), die eine konvexe Faltung (6) zulassen, winklige Aussparungen (8) aufweisen, die den Winkel der Sternfaltung definieren.6. Filter, according to claim 5, characterized in that the support medium in the area of the film hinges 4, in particular in the area of the film hinges (4), which allow a convex fold (6), have angular recesses (8) which form the angle of the star fold define.
7. Filter, nach Anspruch 1, dadurch gekennzeichnet, daß die sich berührenden Enden (9) geklebt oder geschweißt sind.7. Filter, according to claim 1, characterized in that the contacting ends (9) are glued or welded.
8 Filter, nach einem oder mehreren der vorgenannten Ansprüche, dadurch gekennzeichnet, daß die Abdeckungen (5) mit dem Filter- und Stützmedium verschweißt, verklebt oder verschnappt sind.8 filter, according to one or more of the preceding claims, characterized in that the covers (5) are welded, glued or snapped to the filter and support medium.
9 Filter, nach einem oder mehreren der vorgenannten Ansprüche, dadurch gekennzeichnet, daß wenigstens eine Abdeckung (5) ein Filterumgehungsventil (12) enthält. Vorrichtung zum Filtern von Flüssigkeiten, insbesondere von 01, dadurch gekennzeichnet, daß wenigstens ein Filter nach einem oder mehreren der vorgenannten Ansprüche zum Einsatz kommt 9 filter according to one or more of the preceding claims, characterized in that at least one cover (5) contains a filter bypass valve (12). Device for filtering liquids, in particular 01, characterized in that at least one filter according to one or more of the preceding claims is used
PCT/EP1997/003076 1996-06-20 1997-06-12 Filter WO1997048470A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP10502222A JP2000512206A (en) 1996-06-20 1997-06-12 filter
BR9709846A BR9709846A (en) 1996-06-20 1997-06-12 Liquid filter and filter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19624523.0 1996-06-20
DE19624523A DE19624523A1 (en) 1996-06-20 1996-06-20 filter

Publications (2)

Publication Number Publication Date
WO1997048470A2 true WO1997048470A2 (en) 1997-12-24
WO1997048470A3 WO1997048470A3 (en) 1998-03-12

Family

ID=7797411

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/003076 WO1997048470A2 (en) 1996-06-20 1997-06-12 Filter

Country Status (9)

Country Link
JP (1) JP2000512206A (en)
KR (1) KR20000022027A (en)
BR (1) BR9709846A (en)
CA (1) CA2259173A1 (en)
CZ (1) CZ422898A3 (en)
DE (1) DE19624523A1 (en)
IL (1) IL121086A0 (en)
WO (1) WO1997048470A2 (en)
ZA (1) ZA975280B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6488845B1 (en) * 1999-08-12 2002-12-03 Purolator Products Na, Inc. Oil filter unit with quick-drain valve actuator
US6896803B2 (en) 2003-03-28 2005-05-24 Arvin Technologies, Inc. Filter apparatus and associated method
US7708147B2 (en) 2004-11-15 2010-05-04 Purolator Filters Na Llc Fluid filter assembly with notched case

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19806929A1 (en) * 1998-02-19 1999-08-26 Knecht Filterwerke Gmbh Seal, e.g. for combustion engine fuel filter
DE19813319A1 (en) * 1998-03-26 1999-09-30 Knecht Filterwerke Gmbh Ring-shaped plastic end plate made of polyamide for a ring filter
DE29816629U1 (en) * 1998-09-16 2000-02-03 Ing. Walter Hengst GmbH & Co KG, 48147 Münster Air filter
FR2787036B1 (en) * 1998-12-14 2002-01-25 Filtrauto LIQUID FILTER PROVIDED WITH SEALING MEANS
DE10001259A1 (en) * 2000-01-14 2001-07-19 Hydac Filtertechnik Gmbh Filter includes two elements in casing, to retain particles of differing sizes and has passage connecting filter chambers
DE10026437A1 (en) * 2000-05-29 2001-12-06 Mann & Hummel Filter Filter device
WO2002040133A1 (en) * 2000-11-16 2002-05-23 Filterwerk Mann+Hummel Gmbh Filter element
DE10248907B4 (en) * 2002-10-19 2013-08-22 Mann + Hummel Gmbh Filter device, in particular for liquid filtration in internal combustion engines
US7441664B2 (en) * 2003-05-23 2008-10-28 Pur Water Purification Products Inc. Water treatment devices and cartridges therefor
WO2005016488A1 (en) * 2003-08-05 2005-02-24 Filtertek S.A. Filter, especially for fuels and similar
US8215492B2 (en) 2003-09-18 2012-07-10 Pur Water Purification Products, Inc. Water treatment devices and cartridges therefor
US8123942B2 (en) 2004-08-18 2012-02-28 Assion Norbert M Liquid filter assembly
EP2139577B1 (en) * 2007-03-22 2013-11-27 Norbert M. Assion Liquid filter assembly
DE102015003101A1 (en) * 2015-03-11 2016-09-15 Mann + Hummel Gmbh filter element
WO2017053270A1 (en) * 2015-09-24 2017-03-30 Cummins Filtration Ip, Inc. System and method for oil filtration in bypass mode

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB880812A (en) * 1958-01-15 1961-10-25 Gen Motors Ltd Improvements in or relating to filters for fluids
DE2311854A1 (en) * 1972-03-11 1973-09-20 Gen Motors Ltd FLUID FILTER ARRANGEMENT
US4878930A (en) * 1984-03-15 1989-11-07 W. L. Gore & Associates, Inc. Filter cartridge
US5114508A (en) * 1984-12-24 1992-05-19 Tokuya Miyagi Filter element and its production

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1726591U (en) * 1955-04-23 1956-07-19 Mann & Hummel Filter FILTERS, IN PARTICULAR AIR FILTERS.
US3543940A (en) * 1968-08-14 1970-12-01 Industrial Filter Pump Mfg Co Filter construction
DE2034669A1 (en) * 1970-07-13 1972-01-27 Purolator Filter GmbH, 7110 Ohringen Filter with a strip of filter paper folded in a zigzag shape
US3793692A (en) * 1972-12-12 1974-02-26 American Air Filter Co Fluid treating filter
FR2426487A1 (en) * 1978-05-22 1979-12-21 Ouest Cie FILTRATION CARTRIDGE
SE467471B (en) * 1987-02-16 1992-07-20 Stenhex Ab DEVICE FOR FILTERING AND HEAT EXCHANGE
DE4039288C2 (en) * 1990-12-08 1997-09-18 Knecht Filterwerke Gmbh Filter insert for gas filters in particular
DE9113531U1 (en) * 1991-10-30 1991-12-19 W.L. Gore & Associates Gmbh, 8011 Putzbrunn Filter cartridge
DE4201559A1 (en) * 1992-01-22 1993-07-29 Schwaebische Huettenwerke Gmbh MATERIAL FOR FILTERS, IN PARTICULAR OIL, GASOLINE OR DIESEL FILTERS OF MOTOR VEHICLES
DE4242513C2 (en) * 1992-12-16 1997-02-06 Opel Adam Ag Oil pan for an internal combustion engine
DE4310234C1 (en) * 1993-03-30 1994-08-18 Argo Feinmechanik Backflow filter for liquids
DE4327368A1 (en) * 1993-08-14 1995-02-16 Minnesota Mining & Mfg Filters for filtering a fluid flow
DE9403669U1 (en) * 1994-03-07 1994-05-26 Ing. Walter Hengst GmbH & Co KG, 48147 Münster Filter insert, especially for oil or fuel filters

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB880812A (en) * 1958-01-15 1961-10-25 Gen Motors Ltd Improvements in or relating to filters for fluids
DE2311854A1 (en) * 1972-03-11 1973-09-20 Gen Motors Ltd FLUID FILTER ARRANGEMENT
US4878930A (en) * 1984-03-15 1989-11-07 W. L. Gore & Associates, Inc. Filter cartridge
US5114508A (en) * 1984-12-24 1992-05-19 Tokuya Miyagi Filter element and its production

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6488845B1 (en) * 1999-08-12 2002-12-03 Purolator Products Na, Inc. Oil filter unit with quick-drain valve actuator
US6896803B2 (en) 2003-03-28 2005-05-24 Arvin Technologies, Inc. Filter apparatus and associated method
US7708147B2 (en) 2004-11-15 2010-05-04 Purolator Filters Na Llc Fluid filter assembly with notched case

Also Published As

Publication number Publication date
DE19624523A1 (en) 1998-01-02
KR20000022027A (en) 2000-04-25
CZ422898A3 (en) 1999-06-16
ZA975280B (en) 1998-01-14
WO1997048470A3 (en) 1998-03-12
CA2259173A1 (en) 1997-12-24
IL121086A0 (en) 1997-11-20
JP2000512206A (en) 2000-09-19
BR9709846A (en) 1999-08-10

Similar Documents

Publication Publication Date Title
WO1997048470A2 (en) Filter
DE4218396B4 (en) Filter device, in particular for filtering the intake air of an internal combustion engine
DE69203722T2 (en) FILTERS WITH DELTA-FOLDED FILTER MATERIAL.
EP0958032B1 (en) Filter cartridge
EP0828547B1 (en) Filter, especially air filter for the intake air of an internal combustion engine
EP1733778B1 (en) Air filter
DE3433622C2 (en) Filter insert for air filters used in dusty operation for internal combustion engines, compressors and other air-sucking machines
DE1536796A1 (en) Filter device for flowable media
DE102004059279A1 (en) air filter
EP0836525A1 (en) Filter cartridge
DE3123269C2 (en) Engine liquid filter
EP0534079B1 (en) Intake air filter element in particular for automotive vehicles
EP1113853B1 (en) Filter for liquids, mainly oil or fuel, in an internal combustion engine
DE19534254A1 (en) Filter element
EP1128891B1 (en) Filter comprising a housing and cylindrical filter cartridge used in said filter
DE68903322T2 (en) DOUBLE OIL FILTER FOR OIL FOR COMBUSTION ENGINES OF MOTOR VEHICLES.
DE102010025971B4 (en) Filter for filtration of fluids and filter cartridge
WO2017114669A1 (en) Filter device
DE19922326B4 (en) Multi-layer filter medium
DE102014008699B4 (en) Filter element with prismatic basic shape and filter
DE102014008701B4 (en) Filter with variable outflow direction
DE9403669U1 (en) Filter insert, especially for oil or fuel filters
DE10002118A1 (en) Compensator vessel for hydraulic systems for e.g. motor vehicle steering systems has modular pre-folded paper filter glued to base of vessel
EP3744414A1 (en) Filter with folded edge
DE202014004897U1 (en) Filter with variable outflow direction

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): BR CA CZ HU JP KR MX TR US

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1997928190

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: PV1998-4228

Country of ref document: CZ

WWE Wipo information: entry into national phase

Ref document number: 1019980710425

Country of ref document: KR

ENP Entry into the national phase

Ref document number: 2259173

Country of ref document: CA

Ref country code: CA

Ref document number: 2259173

Kind code of ref document: A

Format of ref document f/p: F

WWW Wipo information: withdrawn in national office

Ref document number: 1997928190

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: PV1998-4228

Country of ref document: CZ

122 Ep: pct application non-entry in european phase
WWP Wipo information: published in national office

Ref document number: 1019980710425

Country of ref document: KR

WWW Wipo information: withdrawn in national office

Ref document number: 1019980710425

Country of ref document: KR

WWR Wipo information: refused in national office

Ref document number: PV1998-4228

Country of ref document: CZ