WO2004041407A1 - Element filtre - Google Patents

Element filtre Download PDF

Info

Publication number
WO2004041407A1
WO2004041407A1 PCT/EP2003/011778 EP0311778W WO2004041407A1 WO 2004041407 A1 WO2004041407 A1 WO 2004041407A1 EP 0311778 W EP0311778 W EP 0311778W WO 2004041407 A1 WO2004041407 A1 WO 2004041407A1
Authority
WO
WIPO (PCT)
Prior art keywords
folds
support tube
fold
filter element
filter
Prior art date
Application number
PCT/EP2003/011778
Other languages
German (de)
English (en)
Inventor
Andreas Schunk
Original Assignee
Hydac Filtertechnik 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 Hydac Filtertechnik Gmbh filed Critical Hydac Filtertechnik Gmbh
Publication of WO2004041407A1 publication Critical patent/WO2004041407A1/fr

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
    • 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
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/12—Pleated filters
    • B01D2201/122—Pleated filters with pleats of different length

Definitions

  • the invention relates to a filter element in the form of a filter cylinder, which is formed from a sequence of adjacent, longitudinally extending folds of filter material, which are located within the space between an inner fluid-permeable support tube surrounded by the filter element and an outer lateral surface extend that the longitudinal, radially outer fold backs adjoin the outer lateral surface, some of the folds with their longitudinal, radially inner fold backs adjoin the support tube and at least another part of the folds with their longitudinal, radially inner fold back extends at a distance from the inner support tube, the sequence of the folds being chosen so that each fold, which extends over the entire radial extent of the intermediate space from the outer circumferential surface to the inner support tube, has a respective company lte follows, the radially inner fold back of which is located at the mentioned distance from the inner support tube and which in turn is immediately followed by a fold extending over the entire radial extent of the intermediate space.
  • Filter elements of the type mentioned above are commercially available and are found, for example, in hydraulic systems in Hydraulic oils flowing through system branches are widely used.
  • the known filter elements are not entirely satisfactory with regard to their operational safety and the stability of the beta value which is decisive for the filter performance.
  • Such impairments and / or deformations of the folds are referred to here with the general expression “bulges of the folds”.
  • the invention has for its object to provide a filter element which is distinguished from the prior art by improved operational reliability and better beta value stability, even at high flow rates.
  • this object is achieved according to the invention in that in the case of the folds whose radially inner fold backs are at the mentioned distance from the support tube, this distance is large in each case.
  • the space available between the inner support tube and the outer lateral surface can be optimally used.
  • the filter cylinder is designed with a relatively large pleat height in relation to the diameter of the inner support tube
  • the outwardly diverging gusset between two adjacent high pleats is optimally utilized by the pleat of smaller height lying between them.
  • the folds of lesser height protrude so far into the gusset between the adjacent higher folds so that they just touch them. This not only results in an optimal utilization of the volume between the inner support tube and the outer jacket surface due to the filter material built into this volume and a significantly enlarged filter surface, but the high folds are additionally supported.
  • the fold height of the folds of lesser height is approximately 2/3 of the radial extent of the space between the inner support tube and the outer jacket surface.
  • the outer lateral surface can be formed by a fluid-permeable outer support tube surrounding the filter element.
  • a multi-layer filter mat web is provided as the filter material, this can have an outer support that forms the outer lateral surface in the form of a lattice or woven structure.
  • the multilayer filter mat web can have a metallic grid as the outer support forming the outer lateral surface.
  • FIG. 1 is a perspective view of the filter cylinder of an exemplary embodiment of the filter element according to the invention.
  • FIG. 2 shows a highly schematically simplified and broken partial plan view of the filter cylinder from FIG. 1 to illustrate the fold arrangement of the filter material.
  • the figures show a filter element in the form of a filter cylinder 1, which is formed from a folded filter mat web, the two ends of which are joined together at a connecting seam 3, in the exemplary embodiment by welding, so that the filter cylinder 1 represents a closed ring body.
  • the fold arrangement is constructed in such a way that folds 5 of larger, radially measured fold height H alternate with folds 7 of lower fold height, namely 2/3 H, in direct succession.
  • the radially outer fold backs 17 lie on all folds 5 and 7 on the same radius, ie they adjoin an outer lateral surface, which is only indicated in FIG. 2 and is designated by 9. Of the folds 5 and 7, only the longitudinal fold backs 6 of the higher folds 5 are in contact with an inner support tube, which is only indicated in FIG. 2 and is denoted by 1 1.
  • the radially inner fold backs 15 (FIG. 2) of the folds 7 with a smaller fold height are also each at the same radius, which is designated 13 in FIG. 2, the fold height of these folds 7 in the present example 2/3 of the fold height of the folds 5 is. As can be clearly seen from FIG.
  • the folds 7 of lower height make use of the gusset-like, slightly outwardly widening space between neighboring folds 5 of greater height, in the region of their radially inner fold back 15 each resting on the side flanks of the adjacent folds 5 , so that a pleat composite is formed which, despite the large filter area, offers the desired buckling protection even at higher differential pressures.
  • the fold height of the folds is 7 2/3 of the height H of the folds 5. It goes without saying that, depending on the ratio of the diameter of the inner support tube 11 and the outer jacket surface 9, other values for the distance between the radially inner fold backs 15 of the folds Folds 7 and the inner support tube 1 1 can be selected in order to achieve the desired utilization of the space between the support tube 1 1 and the outer surface 9 with good mutual support of the folds 5 and 7.
  • the filter mat web is preferably formed by a flexible mat structure made of metal-free, plastic-supported filter mats, the connection of the ends of the filter mat web, whereby a closed ring body is formed, being produced by a weld seam 3.
  • a six-layer structure of the filter mat web which has the following layers in succession: an outer support, a protective fleece, a pre-filter layer, a main filter layer, a support fleece and an inner support.
  • a polyamide grid or a polyester fabric can be used for the external support.
  • This outer support can form the outer lateral surface 9 for the contact of the radially outer fold back 17.
  • the outer Lateral surface 9 by a fluid-permeable outer support tube (not Darge ⁇ represents) may be formed.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

L'invention concerne un élément filtre se présentant sous la forme d'un cylindre filtre (1) constitué par une suite de plis adjacents (5, 7), s'étendant longitudinalement, réalisés en matériau filtre. Lesdits plis s'étendent dans l'espace intermédiaire entre un tuyau support (11) perméable aux fluides, entouré par l'élément filtre, et une surface enveloppe extérieure (9), de telle manière que les dos de plis (17) radialement extérieurs, s'étendant longitudinalement, s'appuient contre la surface enveloppe extérieure (9), qu'une partie (5) des plis s'appuie contre le tuyau support (11) avec les dos de plis (6) radialement intérieurs, s'étendant longitudinalement, et qu'au moins une autre partie (7) des plis s'étend à espace du tuxau support intérieur (11) avec les dos de plis (15) radialement intérieurs, s'étendant longitudinalement. Selon l'invention, la suite des plis (5, 7) est choisie de telle manière que chaque pli (5) s'étendant sur toute la longueur radiale de l'espace intermédiaire, de la surface enveloppe extérieure (9) jusqu'au tuyau support intérieur (11), est respectivement suivi par un pli (7) dont le dos de pli (15) radialement intérieur se trouve à l'écart mentionné du tuyau support intérieur (11), suivi à nouveau par un pli (5) s'étendant sur toute la longueur radiale de l'espace intermédiaire.
PCT/EP2003/011778 2002-11-02 2003-10-24 Element filtre WO2004041407A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10250969.7 2002-11-02
DE2002150969 DE10250969A1 (de) 2002-11-02 2002-11-02 Filterelement

Publications (1)

Publication Number Publication Date
WO2004041407A1 true WO2004041407A1 (fr) 2004-05-21

Family

ID=32115089

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/011778 WO2004041407A1 (fr) 2002-11-02 2003-10-24 Element filtre

Country Status (2)

Country Link
DE (1) DE10250969A1 (fr)
WO (1) WO2004041407A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004061078A1 (de) * 2004-12-18 2006-06-29 Hydac Filtertechnik Gmbh Filterbauteil
WO2007052563A1 (fr) 2005-10-31 2007-05-10 Nippon Rokaki Co.,Ltd. Dispositif formant filtre et corps de filtration
US7759815B2 (en) 2004-12-17 2010-07-20 Nordex Energy Gmbh Wind motor with a holding device for a rotor shaft
WO2014075703A1 (fr) * 2012-11-14 2014-05-22 Rt-Filtertechnik Gmbh Élément filtrant et circuit hydraulique équipé d'un tel élément filtrant
CN111085025A (zh) * 2018-10-24 2020-05-01 帕尔公司 支撑和排泄物料、过滤器和使用方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004005202A1 (de) 2004-02-03 2005-08-25 Hydac Filtertechnik Gmbh Filterelement
DE102004055845B4 (de) * 2004-11-19 2006-08-24 Zander Aufbereitungstechnik Gmbh & Co. Kg Hohlzylindrisches Filterelement für flüssige oder gasförmige Medien
FR2889079B1 (fr) 2005-07-29 2007-11-02 Vallee De L Aigues S I V A Sar Dispositif de filtration integrant une boucle et une pompe de circulation
DE102016011754A1 (de) 2016-09-30 2018-04-05 Mann+Hummel Gmbh Filterelement
DE102018101804A1 (de) * 2018-01-26 2019-08-01 Sartorius Stedim Biotech Gmbh Filtermodul

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1611083A1 (de) * 1967-08-16 1971-05-19 Faudi Feinbau Trennelement
US3799354A (en) * 1972-03-11 1974-03-26 Gen Motors Corp Fluid filter elements
JPS6061017A (ja) * 1983-09-12 1985-04-08 Nippon Denso Co Ltd 流体濾過エレメントの製造方法
JPS60238111A (ja) * 1984-05-11 1985-11-27 Nippon Rokaki Kk フイルタエレメント
EP0504038A1 (fr) * 1991-03-13 1992-09-16 Filtrauto Cartouches de filtration comprenant un élément filtrant constitué par une feuille plissée
DE4414960A1 (de) * 1993-04-30 1994-11-03 Dana Corp Luftfilter
FR2791579A1 (fr) * 1999-04-02 2000-10-06 Albrecht Philippe Cartouche filtrante demontable et recyclable pour filtres a liquide immerges
WO2002022230A2 (fr) * 2000-09-15 2002-03-21 Cuno Incorporated Cartouches de filtre plisses helicoidaux

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2187963C (fr) * 1995-11-03 2001-04-10 Stephen Proulx Boite filtrante et procede pour le filtrage de peintures contenant des particules
AU765826B2 (en) * 1999-01-07 2003-10-02 3M Innovative Properties Company Pleated filter element and method of forming a pleated filter element

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1611083A1 (de) * 1967-08-16 1971-05-19 Faudi Feinbau Trennelement
US3799354A (en) * 1972-03-11 1974-03-26 Gen Motors Corp Fluid filter elements
JPS6061017A (ja) * 1983-09-12 1985-04-08 Nippon Denso Co Ltd 流体濾過エレメントの製造方法
JPS60238111A (ja) * 1984-05-11 1985-11-27 Nippon Rokaki Kk フイルタエレメント
EP0504038A1 (fr) * 1991-03-13 1992-09-16 Filtrauto Cartouches de filtration comprenant un élément filtrant constitué par une feuille plissée
DE4414960A1 (de) * 1993-04-30 1994-11-03 Dana Corp Luftfilter
FR2791579A1 (fr) * 1999-04-02 2000-10-06 Albrecht Philippe Cartouche filtrante demontable et recyclable pour filtres a liquide immerges
WO2002022230A2 (fr) * 2000-09-15 2002-03-21 Cuno Incorporated Cartouches de filtre plisses helicoidaux

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 0091, no. 92 (C - 296) 8 August 1985 (1985-08-08) *
PATENT ABSTRACTS OF JAPAN vol. 0101, no. 07 (C - 341) 22 April 1986 (1986-04-22) *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7759815B2 (en) 2004-12-17 2010-07-20 Nordex Energy Gmbh Wind motor with a holding device for a rotor shaft
DE102004061078A1 (de) * 2004-12-18 2006-06-29 Hydac Filtertechnik Gmbh Filterbauteil
DE102004061078B4 (de) * 2004-12-18 2007-09-06 Hydac Filtertechnik Gmbh Filterbauteil
WO2007052563A1 (fr) 2005-10-31 2007-05-10 Nippon Rokaki Co.,Ltd. Dispositif formant filtre et corps de filtration
EP1952869A1 (fr) * 2005-10-31 2008-08-06 Nippon Rokaki Co., Ltd. Dispositif formant filtre et corps de filtration
EP1952869A4 (fr) * 2005-10-31 2009-11-04 Nippon Rokaki Co Ltd Dispositif formant filtre et corps de filtration
WO2014075703A1 (fr) * 2012-11-14 2014-05-22 Rt-Filtertechnik Gmbh Élément filtrant et circuit hydraulique équipé d'un tel élément filtrant
WO2014075702A1 (fr) * 2012-11-14 2014-05-22 Hydac Filtertechnik Gmbh Élément filtrant
US20150290562A1 (en) * 2012-11-14 2015-10-15 RT- Filtertechnik GmbH Filter element and hydraulic circuit with such a filter element
US10213709B2 (en) * 2012-11-14 2019-02-26 Rt-Filtertechnik Gmbh Filter element and hydraulic circuit with such a filter element
US10478759B2 (en) 2012-11-14 2019-11-19 Rt-Filtertechnik Gmbh Filter element
US11033838B2 (en) 2012-11-14 2021-06-15 Hydac Filtertechnik Gmbh Filter element
EP4094819A1 (fr) * 2012-11-14 2022-11-30 Hydac Filtertechnik GmbH Élément filtrant
CN111085025A (zh) * 2018-10-24 2020-05-01 帕尔公司 支撑和排泄物料、过滤器和使用方法
CN111085025B (zh) * 2018-10-24 2021-12-17 帕尔公司 支撑和排泄物料、过滤器和使用方法

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