WO2012085052A1 - Élément de filtration - Google Patents

Élément de filtration Download PDF

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Publication number
WO2012085052A1
WO2012085052A1 PCT/EP2011/073545 EP2011073545W WO2012085052A1 WO 2012085052 A1 WO2012085052 A1 WO 2012085052A1 EP 2011073545 W EP2011073545 W EP 2011073545W WO 2012085052 A1 WO2012085052 A1 WO 2012085052A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
bodies
filter element
element according
filter body
Prior art date
Application number
PCT/EP2011/073545
Other languages
German (de)
English (en)
Inventor
Ralf Disson
Bernd Neubauer
Birgit Renz
Markus Steppe
Original Assignee
Mahle International 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 Mahle International Gmbh filed Critical Mahle International Gmbh
Priority to DE112011104490T priority Critical patent/DE112011104490A5/de
Publication of WO2012085052A1 publication Critical patent/WO2012085052A1/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
    • B01D46/24—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
    • B01D46/2407—Filter candles
    • 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
    • B01D29/114—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 arranged for inward flow filtration
    • 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
    • B01D29/31—Self-supporting filtering elements
    • B01D29/33—Self-supporting filtering elements arranged for inward flow filtration
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/04—Supports for the filtering elements
    • B01D2201/043—Filter tubes connected to plates
    • B01D2201/0446—Filter tubes connected to plates suspended from plates at the upper side of the filter elements

Definitions

  • the present invention relates to a filter element for removing liquid and / or gaseous and / or solid contaminants from a liquid or gaseous fluid flow, having the features of the preamble of claim 1.
  • the invention also relates to a filter device with at least one such filter element.
  • the invention also relates to a method for producing such filter elements.
  • a particle filter is known, with the aid of which an exhaust gas flow of an internal combustion engine soot particles can be filtered out.
  • a housing of the particulate filter a plurality of sleeve-shaped filter body of a ceramic yarn are arranged, each having an axially open end and an axially closed end and which are arranged in the housing of the particulate filter so that they can be flowed through in parallel by the exhaust stream.
  • a filter device in which also a plurality of sleeve-shaped filter body, so-called filter cartridges are used.
  • the present invention is generally concerned with the problem of specifying for a filter element of the type mentioned or for a filter device equipped therewith an improved embodiment, which can be realized in particular inexpensively and preferably characterized by the fact that an improved utilization of existing installation space possible is.
  • the invention is based on a first solution based on the general idea to realize the individual filter body by means of sleeve-shaped moldings, which are made of the filter material by means of a molding process.
  • the filter bodies according to the invention are monolithic integral parts which are not joined and are not assembled from a plurality of components. As a result, the filter body and thus the filter element can be realized particularly inexpensively.
  • the filter body may be made of the filter material by primary molding or by forming.
  • a preferred Urformtechnik is, for example, the injection molding of the filter body from the filter material.
  • a preferred forming technique is, for example, the deep drawing or compression molding of the filter body from a blank consisting of the filter material.
  • the filter material here is preferably a fiber material, eg nonwoven, cellulose, synthetic fibers, polymer fibers, glass fibers or a mixture of different fibers.
  • the invention is based on a second solution based on the general idea, at least two of the sleeve-shaped filter body to design differently. By using different filter body, it is possible to better fill an existing installation space with the filter bodies, resulting in a better space utilization. In the same space can thereby achieve an increased filtration effect.
  • This second solution basically works without the moldings of the first solution.
  • the at least two filter bodies differ in terms of their geometry.
  • the at least two filter bodies can have different lengths.
  • the at least two different filter bodies may have different cross sections.
  • the cross sections with respect to the cross-sectional profile and / or with respect to the cross-sectional area and / or with respect to the cross-sectional profile along the length of the filter body may differ from each other.
  • two filter bodies having a circular cross-sectional profile may have different diameters.
  • one filter body may have an elliptical cross section, while the other filter body may have a circular or rectangular cross section.
  • one filter body may have a constant cross section in its longitudinal direction, while the other filter body has a varying cross section in its longitudinal direction, which increases or decreases, for example, from one end to the other end.
  • two filter bodies with a cross section which varies in their longitudinal direction to be different from one another in that, in the case of one filter body, the cross section in the longitudinal direction decreases or increases more than in the case of the other filter body.
  • the above variations are arbitrarily combinable.
  • By varying cross-sectional geometries of the interior or a receiving space of a housing of a filter device transversely to the longitudinal extent of the filter body special be well exploited, so that only a relatively small free space between the filter bodies remains.
  • the filter bodies can be provided that touch adjacent filter body and are supported directly against each other.
  • a mainstream filtration and a bypass filtration can thereby be realized within the same filter element, whereby the bypass filtration purifies a smaller part of the fluid flow with increased filtration action, while the mainstream filtration filters a larger proportion of the fluid flow with reduced cleaning action in parallel thereto.
  • the individual filter bodies are in particular configured in a straight line. Particularly advantageous is an embodiment in which the filter body parallel to each other, whereby a particularly compact design can be realized. Alternatively, in principle, an embodiment is conceivable in which at least two filter bodies are inclined relative to each other. In another advantageous embodiment, at least one support frame may be provided, with which the filter body are connected and with which the filter element is fixable in a housing of a filter device. As a result, the group of filter bodies can be handled uniformly, so that in fact only one filter element has to be exchanged to replace all the filter bodies.
  • the filter bodies are integrally formed from the support frame.
  • the filter body and the support frame can be produced in a manufacturing step, the filter body and the support frame, which is particularly inexpensive.
  • a preferably flat blank can be used, from which the individual filter bodies are formed, while the undeformed or otherwise deformed rest of the blank can then form the support frame.
  • the filter body and the support frame are separate components, so that then the filter body is attached to the support frame and attached thereto.
  • the support frame is made of the filter material.
  • the support frame for the fluid to be filtered can be flowed through and has a cleaning function, which can support the efficiency of the filter element.
  • At least one holding frame may be provided on which the filter bodies are supported.
  • a holding frame is provided in particular in addition to the aforementioned support frame to which the filter body are attached.
  • the filter body need not be attached to the support frame. Rather, they can rest against it loosely, in particular transversely to its longitudinal direction.
  • the holding frame is thus used primarily for positioning and in particular for spacing the filter body relative to each other.
  • the holding frame is in the longitudinal direction of the filter body spaced from the support frame. Likewise, it is basically possible to attach the filter body to the support frame.
  • this support frame can be made in a particular development of the filter material.
  • the continuous use of a uniform material, here the filter material simplifies the disposal of a used filter element, since little or no raw material separation is required.
  • the filter material within the respective filter body may have an increasing filtration effect in the direction of flow.
  • This can for example be realized in that the filter material in the flow direction has an increasing density or a decreasing pore size.
  • At least one of the filter bodies can be designed as a multiple filter body in which at least two sleeve-shaped filter bodies with different cross-sections are arranged coaxially with one another.
  • the individual filter bodies are thus arranged in series one behind the other.
  • a prefiltration or coarse filtration upstream of a fine filtration or after-filtration within the same multiple filter body can be realized.
  • more than two sleeve-shaped filter bodies can be arranged coaxially with one another.
  • all filter bodies can be designed as such multiple filter body.
  • the multiple filter body results here an alternative solution to the underlying problem for which independent protection can be claimed.
  • a design is conceivable in which all the filter body are designed as a multiple filter body, but which do not differ from each other.
  • this third solution basically does without the moldings of the first solution.
  • the at least two filter bodies which are arranged coaxially in one another to form the respective multiple filter body, differ.
  • the associated filter body of the respective multiple filter body differ in this case by different cross-sections and by different lengths in order to arrange them into each other.
  • the filter bodies used in each case in the flow direction have a constant or increasing filtration effect, wherein the successive filter body within the respective multiple filter body in the flow direction have an increasing filtration effect. This allows e.g. a pre- or coarse filtration and a subsequent or fine filtration realize.
  • an annular intermediate space formed between the two filter bodies is at least partially filled with a filler.
  • a filtration can also be effected in said intermediate space.
  • the filter material can be constructed of at least one filter body in a multi-layered or multi-layered manner and at least two different filter material layers or filter material. have each other, which lie on top of each other and are flowed through in succession during operation of the filter device.
  • all filter body are made with such a multilayer filter material.
  • woven or knitted filter materials are used as filter materials.
  • nonwoven filter materials such as nonwovens and felts can be used.
  • cellulose fibers, plastic fibers, glass fibers, nanofibers, metal fibers, ceramic fibers are suitable for producing such filter materials.
  • such a filter material can be realized by means of a metal grid.
  • the sleeve-shaped filter body each enclose a cavity.
  • the cavity enveloped by the filter material may be partially or completely filled with a filler.
  • the filler is designed to be permeable to the respective fluid flow.
  • the filler may be activated carbon or sound-deadening or an open-celled foam or a desiccant.
  • any combination of the above fillers is conceivable.
  • the filter element may be provided with an additional function, such as e.g. be equipped as an adsorber for odors, hydrocarbons or moisture, without requiring additional space is required.
  • the filter material may be electrically conductive or at least have an electrically conductive layer.
  • the respective filter element can be equipped with electrical contacts, via which the respective filter body can be connected to an electrical power supply. This makes it possible in particular to apply a high voltage to the respective filter body, for example by a gas flow flowing around or flowing through the respective filter body ionize or deionize an ionized gas flow during the flow through the respective filter body.
  • the electrical lines required for this purpose can be integrated, for example, in the aforementioned support frame or in the aforementioned support frame.
  • the electrical contacting can then take place, for example, via corresponding electrical contacts formed on the support frame or on the support frame, which are electrically connected to corresponding mating contacts when the respective filter element is properly inserted into a housing of the associated filter device.
  • a filter device has a housing which encloses a receiving space and has at least one inlet and at least one outlet.
  • this receiving space at least one filter element of the type described above is arranged, wherein the respective filter element separates a fluidically connected to the at least one inlet raw side of a fluidically connected to the at least one outlet clean side.
  • the filter element may have different filter body, the geometry of the receiving space and thus the geometry of the housing can be optimally adapted to the respective available installation space.
  • this makes it possible to provide the housing with walls that define the receiving space, wherein at least one such wall can be made odd or stepped in order to achieve the desired adaptation of the housing to the available installation space.
  • the housing can be adjusted in terms of its outer contour to the inner contour of the available installation space.
  • the differently configurable filter body then allow in turn an adaptation of the filter element to the inner contour of the housing.
  • at least one of the filter body is supported at its closed end downstream of a fixed relative to the housing wall.
  • This wall may be, for example, an inner wall disposed inside the housing. It may also be an outer wall of the housing delimiting the housing towards the surroundings. The axialbe and frontal support of the respective filter body reduces its mechanical load, resulting in an extended service life of the filter element.
  • a method according to the invention for producing a filter element of the type described above is characterized e.g. in that the sleeve-shaped filter bodies are formed from a blank which is made of the filter material, in particular a flat one. This can be done for example by Tiefzeihen the blank.
  • a fiber-containing filter material can be used here.
  • the fibrous filter material is heated during the molding of the sleeve-shaped filter body.
  • the filter material is a highly fibrous, viscous slurry whose carrier liquid hardens or dries when heat is supplied.
  • a carrier substance can be used which only becomes fluid when heated.
  • Another method according to the invention for producing a filter element of the type described above assumes that the filter material in the form of a fiber suspension is filtered onto a cylindrical support body in order to produce the respective filter body.
  • the respective support body for example, already has the sleeve-shaped structure, but has no or only an insufficient filtration effect.
  • the support body is then flowed through by the suspension of fibrous filter material, with the fibrous material accumulating and adding to the support body.
  • At- closing the added support body is thermally treated so that the deposited filter material hardens or dries and is permanently connected to the support body, so as to form the desired filter body.
  • the filter bodies are immersed in an impregnation bath after the filtration of the filter material. For example, a detachment of the filter material from the support body can be avoided during operation of the filter element.
  • the filter bodies are produced individually with individual supporting bodies.
  • the support bodies are made loose from each other and e.g. used separately to make the filter body.
  • a plurality of filter bodies or all filter bodies of the filter element are simultaneously produced by filtering the filter material onto a support body carrier carrying several or all support bodies. This simplifies the production of the respective Fitlerelements.
  • the blank or the support body carrier may have a planar structure during the production of the filter body and then be converted into a curved structure in order to allow a better utilization of the available installation space here.
  • FIG. 1 and 2 each show a longitudinal section through a filter device in various embodiments
  • Fig. 8 is a longitudinal section through a filter body with multi-layered
  • FIG. 9 is a partially sectioned isometric view of a filter element of another embodiment
  • Fig. 10 is another view as in Fig. 9, but in a next embodiment.
  • a filter device 1 comprises a housing 2 which encloses a receiving space 3 in which at least one filter element 4 is arranged.
  • the filter device 1 is used for removing liquid and / or gaseous and / or solid impurities from a liquid or gaseous fluid stream 5, which is indicated by arrows.
  • it is in the filter device 1 to an air filter for a fresh air system of an internal combustion engine.
  • it may in principle in the filter device 1 to liquid filter such.
  • the inventive filter device 1 can be used as an interior air filter for a passenger compartment or for the air purification of a fuel cell.
  • the filter device 1 may also be a particle filter, in particular a soot filter, for cleaning an exhaust gas stream of an internal combustion engine.
  • "cold" applications are preferred, preferably for gas stream filtration.
  • the housing 2 comprises at least one inlet 6 and at least one outlet 7.
  • the filter element 4 separates in the receiving space 3 a raw side 8, which is fluidically connected to the inlet 5, from a clean side 9 connected to the outlet 7 is fluidically connected.
  • the respective filter element 4 each have a plurality of sleeve-shaped filter body 10, which are made by means of a designated in Fig. 8 with 1 1 filter material.
  • Each filter body 10 has an axially open end 12 and an axially closed end 13.
  • the individual filter bodies 10 are arranged in the receiving space 3 so that they are flowed through in parallel by the fluid flow 5.
  • the open ends 12 in a plane which is aligned at right angles to the direction of flow.
  • the open ends 12 can also be arranged on one or more obliquely arranged to the flow direction ne lie.
  • this plane or these planes are arranged at an angle not equal to 90 ° to the flow direction.
  • the filter body 10 are respectively flowed through from the inside to the outside.
  • a cavity 14 of the respective filter body 10 which is enveloped by the filter material 1 1, counts to the raw side 8, while spaces 15 between adjacent filter bodies 10 and between the housing 2 and the filter bodies 10 belong to the clean side 9.
  • Fig. 2 shows an embodiment in which the filter body 10 are flowed through from the outside to the inside.
  • the cavities 14 belong to the clean side 9, while the intermediate spaces 15 count toward the raw side 8.
  • a mixed construction is also conceivable in which at least one filter body 10 flows through from the inside to the outside, while at least one filter body 10 flows through from outside to inside.
  • FIG. 4 shows an embodiment in which at least two filter bodies 10 differ from one another by different cross-sectional geometries 16 in that they have different diameters 17 for the same cross-sectional profile. It is also possible to provide different cross-sectional profiles. Thus, unlike the circular profiles shown here, it is also possible to provide oval or elliptical or angular, in particular rectangular, cross-sectional profiles.
  • the filter body 10 may also have different lengths.
  • the respective length is measured in an axial direction 18, which is defined by the longitudinal extent of the filter body 10. Due to the variation of the Sectional geometries 16 and / or by the variation of the lengths, it is possible to adapt the filter element 4 to an asymmetrical inner contour 19 of the housing 2 in order to achieve the highest possible utilization of the available receiving space 3.
  • the symmetrical in cross-section arrangement of FIG. 3 may be combined with the asymmetric inner contour 19 of FIG. 5 or with the symmetrical inner contour 19 of FIG.
  • the asymmetrical inner contour according to FIG. 4 can be combined with the likewise asymmetrical inner contour 19 according to FIG. 5 or with the symmetrical inner contour 19 according to FIG.
  • At least one support frame 20 may be provided, which belongs to the scope of the filter element 4 and on which the filter body 10 are attached. With the aid of this support frame 20, the filter element 4 can be used as a unit in the receiving space 3 and fixed in the filter housing 2.
  • this support frame 20 may also be provided according to FIG. 6, at least one support frame 21, on which the filter body 10 are supported. Also, this holding frame 21 counts to the scope of the filter element 4 and stabilizes the elongated filter body 10 relative to each other. Also, the holding frame 21 can be used to support the filter element 4 distal to the support frame 20 on the housing 2.
  • the individual filter bodies 10 can, as shown in FIGS. 1, 2, 5 and 6 as well as 9 and 10, be arranged at a distance from one another so that they do not touch one another. As a result, there is a particularly large amount of filter material 1 1 available for flow. However, in order to make better use of the available space, it may also be possible according to Figures 3 and 4, the individual filter body 10 to be arranged so that they touch. With each other tig touching filter bodies 10, the filter element 4 receives greater stability.
  • Fig. 7 shows a single filter body 10, which is designed as a multiple filter body 22.
  • a multiple filter body 22 is characterized in that it has a plurality of sleeve-shaped simple filter body 23, which are also referred to below as a single filter body 23.
  • These single filter body 23 of the multiple filter body 22 are arranged coaxially with each other. For this they have different cross sections 16 and 17 respectively, so that they do not touch each other circumferentially. In addition, they can be configured differently long, so they do not touch at their closed ends 13.
  • the single filter bodies 23, which in principle also represent filter bodies 10 in accordance with the principles of the present invention, can be made of the same filter material 11.
  • FIG. 8 it is possible, at least in the case of a filter body 10, to build up the filter material 11 in a multi-layered or multi-layered manner, so that it has at least two has different filter material layers 24,25,26.
  • a filter body 10 purely by way of example three filter material layers 24, 25, 26 are provided. It is clear that, in principle, fewer or more filter material layers 24, 25, 26 may also be provided.
  • the filter element 4 is flowed through during operation of the filter element 4 successively.
  • the different filter material layers 24,25,26 so that sets a graded filtration effect of coarse to fine with any intermediate stages.
  • the first streamed filter material layer 25 or 26 of a more stable filter material, for.
  • an intermediate layer 25 or a downstream layer 24 or 26 made of a less stable material such. B. from cellulose fibers or plastic fibers, can be made.
  • different filter materials 1 1 can be used, which can also be used in any combination for the realization of the individual filter material layers 24,25,26.
  • fibers made of cellulose or plastic or glass or metal may be mentioned.
  • the fibers can be configured as nanofibers or as microfibers.
  • a nanocoating of the respective filter material 11 or the respective filter material layer 24, 25, 26 is possible.
  • the respective filter material 11 or the respective filter material layer 24, 25, 26 can be woven or knitted or nonwoven, in particular nonwoven-like or felt-like.
  • the cavity 14 of the respective filter body 10 according to FIG. 8 or the respective intermediate space 30 of the multiple filter body 22 can be partially or completely filled with a filler 27 ,
  • a filler 27 For example. may be used as a filler 27 activated carbon or a Schallschluckstoff or an open-cell foam or a desiccant.
  • any combinations of these fillers 27 and other fillers 27 are conceivable.
  • the respective filter body 10 receives an additional function, such as. B. odor adsorption or hydrocarbon adsorption or moisture adsorption.
  • Fig. 8 also shows a specific embodiment in which the filter body 10 is designed to be electrically conductive.
  • the intermediate layer 25 is designed as an electrically conductive layer.
  • this intermediate layer 25 or electrically conductive layer 25 may be formed of metal fibers or by a metal grid.
  • the filter body 10 is provided with corresponding electrical contacts 28, via which an electrical power supply, in particular an electrical voltage to said layer 25 can be applied. As a result, a gas flow flowing through the filter body 10 can be ionized.
  • the contacts 28 are expediently laid in the support frame 20 or in the support frame 21, in particular integrated therein.
  • FIGS. 4 and 5 In the asymmetric construction of the housing 2 according to FIGS. 4 and 5, at least one housing wall 29, which forms a component of the housing 2 delimiting the receiving space 3, is executed in an odd or stepped manner. Visible are provided in the relevant wall 29 inclinations, slopes, steps and rounding in Figures 4 and 5.
  • Fig. 9 shows an embodiment in which the filter body 10 and the support frame 20 are integrally or monolithically made in one piece.
  • Fig. 10 shows a built embodiment in which the filter bodies 10 and the support frame 20 are manufactured separately and subsequently assembled.
  • the sleeve-shaped filter bodies 10 are formed from a blank which is made of the filter material 11, in particular flat. This can be done for example by Tiefzeihen the blank.
  • a fiber-containing filter material 1 1 can be used here.
  • the fibrous filter material 1 1 is heated during the molding of the sleeve-shaped filter body 10.
  • the filter material 11 is a highly fibrous, viscous slurry whose carrier liquid hardens or heats when it is supplied with heat.
  • a carrier substance can be used which only becomes fluid when heated. The rest of the blank can then form the support frame 20.
  • FIG. 10 Another method for producing such a filter element 4 is based, for example, on FIG. 10, that for producing the respective filter body 10, the filter material 11 is filtered in the form of a fiber suspension to a cylindrical support body 31.
  • a support body 31 is indicated in Fig. 10 in one of the filter body 10 by means of broken lines.
  • the respective support body 31 already has the sleeve-shaped structure, but has no or only an insufficient filtration effect.
  • the support body 31 is now flowed through by the suspension of fibrous filter material 11, wherein the fiber material accumulates and the support body 31 is added. Subsequently, the added support body 31 is thermally treated.
  • the filter body 10 are dipped after the filtration of the filter material 1 1 in an impregnation bath.
  • a detachment of the filter material 1 1 can be avoided by the support body 31.
  • the filter bodies 10 are produced individually with individual support bodies 31. In other words, the support bodies 31 are produced loosely relative to one another and, for example, used separately for producing the filter bodies 31.
  • a plurality of filter body 10 or all filter body 10 of the filter element 4 are simultaneously produced by the filter material 1 1 is filtered to a supporting body carrier supporting several or all support body 31.
  • the respective support body carrier on which the fibrous material likewise attaches when it is filtered, can be used, for example, as a support frame 20.
  • the blank or the support body carrier may have a planar structure during the production of the filter body 10 and subsequently be converted into a curved structure, in order to allow a better utilization of the available installation space here as well.
  • the support frame 20 and the filter bodies 10 in FIG. 9 are made of fiber material in the same material.
  • the filter body 10 are deep-drawn from a flat blank, possibly under the action of heat.
  • the support frame 20 has a filtering effect.
  • the support frame 20 may optionally also have a sealing function.
  • a seal for example made of PU, molded or ange- to be foamed.
  • in the associated housing 3 may be provided a groove for sufficiently dense pressing of the fiber material.
  • the filter bodies 10 may be mounted at 32 e.g. be cuffed or welded to the support frame 20.
  • a connector is shown, which may also be glued or welded.
  • a hold-down is designated, which can also be used to set the filter body 10 on the support frame 20.
  • a holding frame 21 can also be provided, which positions the individual filter bodies 10 distally to the support frame 20 or supports one another and, if necessary, in the installed state on the housing 3 of the filter device 1.
  • the geometry of the filter bodies 10 can be arbitrarily selected, e.g. Round and square cross sections are conceivable.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Filtering Materials (AREA)

Abstract

La présente invention concerne un élément de filtration (4) pour l'élimination d'impuretés gazeuses et/ou liquides et/ou solides d'un courant fluide liquide ou gazeux (5), qui comprend plusieurs corps de filtration (10) en forme de cartouche constitués d'un matériau de filtration (11), qui présentent chacun une extrémité (12) ouverte axialement et une extrémité (13) fermée axialement et qui sont agencés de manière à être traversés en parallèle. Une fabrication économique est obtenue lorsque les corps de filtration (10) sont configurés sous la forme de pièces moulées qui sont formées à partir du matériau de filtration (11).
PCT/EP2011/073545 2010-12-21 2011-12-21 Élément de filtration WO2012085052A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112011104490T DE112011104490A5 (de) 2010-12-21 2011-12-21 Filterelement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010063690.8 2010-12-21
DE201010063690 DE102010063690A1 (de) 2010-12-21 2010-12-21 Filterelement

Publications (1)

Publication Number Publication Date
WO2012085052A1 true WO2012085052A1 (fr) 2012-06-28

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PCT/EP2011/073545 WO2012085052A1 (fr) 2010-12-21 2011-12-21 Élément de filtration

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DE102017213798B4 (de) 2017-08-08 2020-10-08 Audi Ag Brennstoffzellensystem
DE102017213783B4 (de) 2017-08-08 2020-12-03 Audi Ag Brennstoffzellensystem
IT201800006072A1 (it) * 2018-06-06 2019-12-06 Dispositivo per la filtrazione aria

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US4968467A (en) * 1989-07-10 1990-11-06 Industrial Filter & Pump Mfg. Co. Hot gas filter
DE3914758A1 (de) 1989-05-05 1990-11-08 Mann & Hummel Filter Russfilter zur reinigung des abgastroms einer brennkraftmaschine
EP0541331A1 (fr) * 1991-11-04 1993-05-12 INDUSTRIAL FILTER & PUMP MFG.CO. Objet d'une matière fibreuse céramique
EP0730896A2 (fr) * 1995-03-08 1996-09-11 Tenmat Limited Eléments filtrants
DE19612780A1 (de) * 1996-03-29 1997-10-02 Gosag Stahl Und Anlagenbau Gmb Verfahren zur Herstellung eines metallischen Filterkörpers, insbesondere für die Heißgasfiltration
DE20019721U1 (de) 2000-05-19 2001-03-08 Faudi Filtersysteme GmbH, 35260 Stadtallendorf Filtereinrichtung

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US1729135A (en) * 1925-12-23 1929-09-24 Harold W Slauson Air and oil filter
JP2830080B2 (ja) * 1988-07-08 1998-12-02 株式会社デンソー ▲ろ▼過エレメントおよびその製造方法
DE19704147A1 (de) * 1997-02-04 1998-08-06 Emitec Emissionstechnologie Hitzebeständiger und regenerierbarer Filterkörper mit Strömungswegen
DE202006014962U1 (de) * 2006-09-27 2008-02-07 Mann + Hummel Gmbh Filtereinrichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3914758A1 (de) 1989-05-05 1990-11-08 Mann & Hummel Filter Russfilter zur reinigung des abgastroms einer brennkraftmaschine
US4968467A (en) * 1989-07-10 1990-11-06 Industrial Filter & Pump Mfg. Co. Hot gas filter
EP0541331A1 (fr) * 1991-11-04 1993-05-12 INDUSTRIAL FILTER & PUMP MFG.CO. Objet d'une matière fibreuse céramique
EP0730896A2 (fr) * 1995-03-08 1996-09-11 Tenmat Limited Eléments filtrants
DE19612780A1 (de) * 1996-03-29 1997-10-02 Gosag Stahl Und Anlagenbau Gmb Verfahren zur Herstellung eines metallischen Filterkörpers, insbesondere für die Heißgasfiltration
DE20019721U1 (de) 2000-05-19 2001-03-08 Faudi Filtersysteme GmbH, 35260 Stadtallendorf Filtereinrichtung

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