WO2015124385A1 - Élément filtrant pour un système de filtration - Google Patents

Élément filtrant pour un système de filtration Download PDF

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Publication number
WO2015124385A1
WO2015124385A1 PCT/EP2015/051534 EP2015051534W WO2015124385A1 WO 2015124385 A1 WO2015124385 A1 WO 2015124385A1 EP 2015051534 W EP2015051534 W EP 2015051534W WO 2015124385 A1 WO2015124385 A1 WO 2015124385A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
frame
medium body
filter element
element according
Prior art date
Application number
PCT/EP2015/051534
Other languages
German (de)
English (en)
Inventor
Thomas Reinhold
Original Assignee
Mann+Hummel Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mann+Hummel Gmbh filed Critical Mann+Hummel Gmbh
Priority to DE112015000859.4T priority Critical patent/DE112015000859A5/de
Publication of WO2015124385A1 publication Critical patent/WO2015124385A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • 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
    • B01D46/0002—Casings; Housings; Frame constructions
    • 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
    • B01D2271/00—Sealings for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2271/02—Gaskets, sealings

Definitions

  • the invention relates to a filter element for a filter device according to the preamble of claim 1.
  • EP 0 824 950 A1 describes a filter element which forms a filter insert for a filter device with which, for example, air filtration can be carried out.
  • the filter element is cuboid and designed as a pleated filter whose pleat tips form the inflow and outflow.
  • a filter frame which consists of plastic and the inflow and the outflow limited each.
  • the plastic of the filter frame is injected into the folds, wherein the frame sections are arranged at a distance from the end faces of the folds.
  • the protruding part of the folds adjacent to the end face should have a sealing effect with the insertion into a receiving filter housing.
  • the invention is based on the object, a filter element with a fold-shaped filter medium body in such a way that with simple constructive measures an effective seal between raw and clean side is given.
  • the filter element according to the invention is preferably used for the filtration of gaseous fluids, for example of air;
  • the filter element is for example part of a filter device for filtering the combustion air of an internal combustion engine or the air to be supplied to an interior.
  • the filter element comprises a filter medium body, on which the filtration takes place and which is block-shaped and designed as a pleated filter.
  • the filter element with the filter medium body is preferably designed cuboid and has opposite, in particular parallel directed inflow and outflow sides.
  • the filter medium body is designed as a pleated filter and advantageously consists of a paper or nonwoven material.
  • the folds are aligned so that the fold edges or tips are located on the inflow and outflow side, wherein the parallel fold edges are preferably arranged respectively in the plane of the inflow and outflow side.
  • the filter medium body is connected to stabilize the folds with a filter frame, which is performed circumferentially and preferably at least approximately has a rectangular shape.
  • the filter frame is adjacent to the edge of the filter medium body, but spaced from its outer edge side.
  • the filter frame is formed circumferentially, it is located on all sides of the filter frame, which preferably has at least approximately the sameêtachir as the filter medium body, a distance from the outer edge of the filter medium body.
  • a circumferential projection on the filter medium body is provided radially outside of the filter frame, wherein the supernatant forms a circumferential sealing edge, which can be used for flow-tight separation between inflow and outflow when inserting the filter element in a receiving filter housing.
  • the protruding circumferential sealing edge can be compressed and deformed due to the relatively soft material of the filter medium body, whereby the sealing effect is improved.
  • the sealing effect is achieved in particular without additional sealing element in the edge region of the filter medium body.
  • the occurring during the deformation of the sealing edge sealing and supporting forces are in this case at least partially absorbed by the rotating filter frame, so that the material of the filter medium body, which is located within the filter frame, is relieved of the supporting and sealing forces.
  • the filter frame projects axially over the filter medium body, so that over the inflow side or the outflow side, possibly over both sides, an axial projection is provided.
  • the filter frame is, according to another advantageous embodiment, designed as a plastic injection-molded component and is injected to produce the filter element in the folds of the filter medium body.
  • the folds adjacent to the edge region can be filled either completely or at least approximately completely by the material of the filter frame, so that the filter frame is made relatively solid.
  • it is also a web-like design of the filter frame into consideration, in which the filter frame follows the contour of the folds and immediately applied to the folds with a constant or at least approximately constant thickness, which has the advantage of lower material consumption for the production of the filter frame. In both cases, it is possible to provide only one filter frame on one side - the upstream side or the downstream side - of the filter medium body or on both sides of the filter medium body.
  • recesses may also be formed by the housing parts which receive the filter element.
  • the area available for the filtration, which is flowed through axially is also extended to the sealing edge, so that overall a larger filtration area is available.
  • the filter frame has a plurality of transverse ribs which extend in the longitudinal direction of the folds and, in particular, extend respectively at the bottom or along the outside of the edges of the folds.
  • the transverse ribs additionally increase the stability of the filter element.
  • the filter frame also has one or more longitudinal ribs which extend perpendicular to the fold longitudinal direction and extend parallel to the plane of the inflow and outflow side.
  • the sections of the filter frame, which run in each case adjacent to the outer edge of the filter medium body can be designed to be straight or curved, in particular slightly convexly curved.
  • the sides of the filter medium body, which limit the outer contour can either be rectilinear or curved, in particular convex.
  • the respective portions of the filter frame and the outside of the filter medium body are parallel to each other.
  • one or more outer sides of the filter medium body are rectilinear and the associated sides of the filter frame are curved or vice versa.
  • the filter housing which is part of the filter device and accommodates the filter element, can, according to another advantageous embodiment, have a radially enlarged shoulder on which the filter frame of the inserted filter element is supported.
  • FIG. 1 is an exploded view of a filter device with a two-part filter housing and an intermediate filter element, the one block-shaped
  • Filter medium body comprises, which is designed as a pleated filter
  • FIG. 3 the filter device in a perspective view in section
  • FIG. 4 is a sectional view of FIG. 3 in a front view
  • 5 shows the filter device in a perspective view in a second sectional plane
  • FIG. 6 is a sectional view of FIG. 5 in a front view
  • Fig. 8 is a section through the folds of the filter medium body
  • Fig. 9 is a plan view of a filter element with a filter frame having transverse ribs.
  • a filter device 1 which can be used for the filtration of a fluid.
  • the filter device 1 forms, for example, an air filter for the filtration of combustion air, which is supplied to an internal combustion engine in a vehicle.
  • the filter device 1 comprises a filter element 2 and a filter housing 3 accommodating the filter element 2 with housing parts 3a and 3b.
  • the filter element 2 is block-shaped or cuboidal and comprises a filter medium body 4, which is designed as a pleated filter with a plurality of individual folds.
  • the filter element 2 includes a filter frame 5, which is designed as a plastic injection-molded component, wherein the plastic material of the filter frame 5 is injected into the folds of the filter medium body 4.
  • a radially enlarged shoulder 6, which serves to receive the filter element 2, is introduced into the housing part 3b.
  • the opposite walls of the enlarged shoulder 6 are aligned parallel to one another in a first plane (FIGS. 5, 6) and inclined in a second plane (FIGS. 3, 4) with an opening that widens toward the free end face.
  • the bottom of paragraph 6 allows the inclusion and support of the filter frame 5, which projects axially over both sides of the block-shaped filter medium body, which form the inflow and outflow, respectively.
  • the further housing part 3a rests on the end face of the shoulder 6 on the housing part 3b and is additionally supported on the filter frame 5, which projects axially both over the inflow side and over the outflow side of the filter element 2. This has the advantage that the axial support forces are absorbed substantially by the filter frame 5 in the filter element 2.
  • the filter frame 5 protrudes axially over both the inflow side 7 and the outflow side 8 of the filter element 2.
  • the filter frame 5 is preferably designed in two parts or there are two filter frames 5 are provided, which are injected from different sides into the folds of the filter medium body 4 to allow the axial projection on both the inflow side 7 and 8 on the downstream side.
  • 5 recesses 9 in the area of the inflow and outflow 7, 8 may be introduced into the filter frame, which have the function that the fluid also beyond the lateral frame boundary into the lateral sealing edge 10 of the filter medium body 4 can propagate.
  • the filter frame which have the function that the fluid also beyond the lateral frame boundary into the lateral sealing edge 10 of the filter medium body 4 can propagate.
  • at least approximately the entire end face of the filter medium body 4 serves to filter the fluid.
  • the fold-shaped filter medium body 4 of the filter element 2 has an approximately rectangular shape in plan view with a small convex crowning outward in the region of the narrow sides.
  • the circumferential filter frame 5 has a convex crown both on the long sides and on the narrow sides of the rectangular shape.
  • the filter frame 5 is introduced at a lateral distance to all four outer sides of the filter medium body 4, whereby a round extending sealing edge 10 of the filter medium body 4 is given, which lies outside of the filter frame 5.
  • the projecting sealing edge 10 of the filter medium body 4 is sealingly against the inner wall of the female housing in the region of the shoulder 6 and prevents false air flows between the inflow and outflow side of the filter medium.
  • the filter frame 5 lies on all sides at a distance from the outside of the filter medium body 4.
  • the sealing edge 10 formed thereby has a thickness of preferably a few millimeters.
  • the filter frame 5 is provided with a longitudinal strut which extends longitudinally centrally between the lateral struts of the filter frame and perpendicular to the longitudinal extension of the pleats.
  • transverse struts can also be provided in the filter frame 5, which extend in the longitudinal direction of the pleat.
  • the transverse struts 11 lie in the region of the edges of the folds extending in the longitudinal direction, but the transverse struts 11 can also run in the base of the folds.
  • the filter frame 5 in the side region is embodied as a web which follows the contour of the folds of the filter medium body 4. This represents an alternative to the embodiment shown, for example, in FIG. 6, in which the filter frame 5 completely fills the folds in the filter medium body 4.

Landscapes

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

Abstract

L'invention concerne un élément filtrant pour un système de filtration. Ledit élément filtrant comporte un corps de matériau filtrant en forme de bloc ou de plis, qui est relié à un cadre de filtre périphérique, lequel est disposé à une certaine distance du bord du matériau filtrant.
PCT/EP2015/051534 2014-02-19 2015-01-27 Élément filtrant pour un système de filtration WO2015124385A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112015000859.4T DE112015000859A5 (de) 2014-02-19 2015-01-27 Filterelement für eine Filtereinrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014002159.9 2014-02-19
DE102014002159.9A DE102014002159A1 (de) 2014-02-19 2014-02-19 Filterelement für eine Filtereinrichtung

Publications (1)

Publication Number Publication Date
WO2015124385A1 true WO2015124385A1 (fr) 2015-08-27

Family

ID=52462904

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/051534 WO2015124385A1 (fr) 2014-02-19 2015-01-27 Élément filtrant pour un système de filtration

Country Status (2)

Country Link
DE (2) DE102014002159A1 (fr)
WO (1) WO2015124385A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211885719U (zh) * 2019-12-06 2020-11-10 广东韦博科技有限公司 后置泡膜净水系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7902475U1 (de) * 1979-01-26 1979-06-07 Delbag-Luftfilter Gmbh, 1000 Berlin Faltfilter mit eingegossenen stegen
EP0824950A1 (fr) 1996-08-13 1998-02-25 Firma Carl Freudenberg Elément filtrant et procédé pour sa production
WO2000059607A1 (fr) * 1999-03-31 2000-10-12 Yugen Gaisha Infinity Kenkyusho Filtre a air pour conditionnement d'air
FR2812379A1 (fr) * 2000-07-28 2002-02-01 Valeo Dispositif de filtration destine a equiper un appareil d'aeration et/ou de chauffage et/ou de climatisation, notamment pour vehicule automobile

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI91219C (fi) * 1992-05-08 1994-06-10 Finn Filter Oy Suodatin sekä menetelmä sen konstruoimiseksi
DE19529618C1 (de) * 1995-08-11 1997-02-20 Freudenberg Carl Fa Mit zumindest einer heraustrennbaren Frontplatte versehenes Rahmenfilter
DE202004021497U1 (de) * 2004-07-01 2008-07-10 Carl Freudenberg Kg Filterelement und Filteranordnung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7902475U1 (de) * 1979-01-26 1979-06-07 Delbag-Luftfilter Gmbh, 1000 Berlin Faltfilter mit eingegossenen stegen
EP0824950A1 (fr) 1996-08-13 1998-02-25 Firma Carl Freudenberg Elément filtrant et procédé pour sa production
WO2000059607A1 (fr) * 1999-03-31 2000-10-12 Yugen Gaisha Infinity Kenkyusho Filtre a air pour conditionnement d'air
FR2812379A1 (fr) * 2000-07-28 2002-02-01 Valeo Dispositif de filtration destine a equiper un appareil d'aeration et/ou de chauffage et/ou de climatisation, notamment pour vehicule automobile

Also Published As

Publication number Publication date
DE102014002159A1 (de) 2015-08-20
DE112015000859A5 (de) 2016-11-03

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