WO2017084798A1 - Élément filtre et système de filtration d'un fluide - Google Patents

Élément filtre et système de filtration d'un fluide Download PDF

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Publication number
WO2017084798A1
WO2017084798A1 PCT/EP2016/073404 EP2016073404W WO2017084798A1 WO 2017084798 A1 WO2017084798 A1 WO 2017084798A1 EP 2016073404 W EP2016073404 W EP 2016073404W WO 2017084798 A1 WO2017084798 A1 WO 2017084798A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter element
support body
medium
fluid
fold edges
Prior art date
Application number
PCT/EP2016/073404
Other languages
German (de)
English (en)
Inventor
Martin Veit
Andreas Wildermuth
Armando Labarta
Pamela Gohl
Sebastian Neubauer
Martin Klein
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 DE112016005259.6T priority Critical patent/DE112016005259A5/de
Publication of WO2017084798A1 publication Critical patent/WO2017084798A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/003—Filters in combination with devices for the removal of liquids
    • 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
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter 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
    • B01D29/56—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 series 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
    • B01D2201/0415—Details of supporting structures
    • B01D2201/0423—Details of supporting structures not in the inner side of the cylindrical filtering elements
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/29—Filter cartridge constructions
    • B01D2201/291—End caps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/60—Shape of non-cylindrical filtering elements

Definitions

  • the invention relates to a filter element for filtering a fluid and a system for filtering a fluid with a filter element, and a fuel supply system, in particular a diesel fuel supply system of a motor vehicle with a filter element.
  • a fuel supply system in particular a diesel fuel supply system of a motor vehicle with a filter element.
  • filter elements In the automotive sector, liquid equipment is often used, such as fuels such as gasoline or diesel, lubricants such as oil or urea solutions, which must be freed of impurities.
  • This filter elements are usually used, which are used in a filter housing or a filter holder.
  • the filter elements themselves comprise a mostly flat and folded filter medium, which is provided between end plates or end caps and is flowed through radially.
  • cylindrical housing and filter element geometries are known. Usually due to the installation situations geometric specifications are given to the respective filter element, the filter holder and to supply and discharge lines for clean and crude fluid. It is desirable to use as large a filter surface in a small space.
  • a filter element with an annular closed folded filter medium is known, whose end faces are tightly connected to end plates.
  • the pleat height between adjacent pleats increases or decreases over several pleats.
  • the filter element can be integrated in installation spaces with special geometries.
  • WO 2007/081425 A1 describes filter elements with a folded filter medium, the folds extending along a longitudinal axis and a transverse axis extending transversely thereto between the first and second pleat tips. The depth of the fold varies along an axis normal to the planes of wrinkles.
  • a filter element for filtering a fluid comprising a folded filter medium, and wherein between inner folding edges and a first support body at least one coalescing for deposition a liquid emulsified in the fluid is arranged and in which at least one screening medium is arranged between the first supporting body and a second supporting body.
  • a filter element for filtering a fluid, comprising a folded filter medium, which comprises outer fold edges and the outer fold edges on the filter medium opposite inner fold edges.
  • the folded edges run along a longitudinal axis of the filter element.
  • the filter element comprises at least a first support body and a second support body, wherein the first support body faces the inner fold edges and forms an envelope of the inner fold edges, and wherein an envelope of the outer fold edges and the second support body at least partially form an outer circumferential surface of the filter element.
  • at least one coalescence medium for separating a liquid emulsified in the fluid is arranged between the inner fold edges and the first support body.
  • at least one sieve medium is arranged between the first support body and the second support body.
  • the filter element according to the invention more filter surface can be accommodated in a given space compared to the prior art.
  • one or more layers of a coalescing medium can be advantageously applied by means of the folding arrangement. Such an arrangement can be achieved relatively inexpensively with few individual components in the described filter element.
  • a separation of an emulsified liquid from the fluid to be filtered can be carried out.
  • the coalescing medium serves to coagulate liquid droplets of a liquid emulsified in the fluid, ie to increase the droplet size, so that the liquid, for example water in diesel fuel, can be separated out of the fluid and can flow off due to gravity.
  • a downstream sieve medium serves to pass the fluid, for example the diesel fuel, but to retain the water droplets so that the water droplets can be deposited in front of or on the sieve cloth.
  • water can be separated from diesel fuel.
  • the present design favors diesel water separation through a relatively long fluid path between coalescing media and sieve media so that the separated water can drain away from the screen media.
  • the function of the first support body is to support the folds of the filter medium against the pressure of the fluid to be filtered and to protect it from collapsing.
  • the inner fold edges abut against the first support body.
  • the envelope of the inner fold edges and the contour of the first support body are adapted to one another, so that the envelope of the inner fold edges and the first support body nestle against each other. Due to the arrangement of the support body and the folded or pleated filter medium in the proposed manner, a particularly efficient and thus enlarged filter surface can be achieved for a given base area of the filter element.
  • the filter element may comprise a single bellows made of folded filter medium. Due to the fact that an outer jacket surface, that is to say a surface which is limited to the outside, for example cylindrical, in particular circular cylindrical filter element, is bounded directly both by outer fold edges and by the second support body, a favorable distribution of the filter medium on the present volume is possible ,
  • the envelope of the outer fold edges and the second support body form the outer circumferential surface of the filter element.
  • the base of the filter element can be formed for example by the folding profiles.
  • the pleated filter medium may be designed in the manner of a continuous bellows and comprise a Umlauffaltabites.
  • the circulatory folding section in particular runs around the first and second supporting bodies together with the inner folding edges.
  • the support bodies can thus be introduced into the filter element.
  • the outer circumferential surface may in particular be a cylinder jacket, for example a circular cylinder, so that one can speak of a round filter element.
  • the folded filter medium is not designed as a star-shaped filter bellows, but rather as a filter medium body with a parallel fold position.
  • the first and / or second support body may advantageously be manufactured in one piece from a plastic, for example in an injection molding process.
  • the support body can also be made of metal, such as aluminum die-cast.
  • the filter medium may comprise, for example, cellulose, a synthetic nonwoven material or a cellulose synthetic mixed fabric.
  • the sieve medium may have at least one support element.
  • the screen medium is formed of a fabric, it has no intrinsic structural rigidity. Therefore, it is advantageous if the sieve medium is applied to a support structure, for example a support grid, so that the sieve medium remains permanently in shape.
  • the coalescing medium can be supported via spacer elements arranged on the first support body and / or indirectly or directly via spacer elements arranged on the second support body.
  • the spacers and support elements can be designed rib-shaped and / or be protruding parts. In this way it is possible to support the coalescing medium against the fluid pressure.
  • stiffened by a support grid Sieve medium which is adapted in its contour to the first support body and arranged adjacent thereto, can be held by spacer elements at a defined distance from the first support body. These spacers may additionally serve to support the coalescing medium.
  • the sieve medium can be arranged following a contour of the first support body in the following manner or in tubular form arranged parallel to a longitudinal axis of the filter element. Since the first support body is advantageously adapted to an envelope of the inner fold edges of the filter medium, the sieve medium can thus also be adapted to this envelope. In this way, the sieve medium is flowed through by the surface of the fluid to be filtered from one side of the screen medium to the other side.
  • the screen medium is tubular in the form of a hollow cylinder, which can be traversed by a radial outside of the screen medium of the fluid to be filtered into the interior of the hollow cylinder.
  • the filtered fluid can flow in the clean fluid region formed in the interior of the sieve medium to the outlet of the filter element.
  • the screen medium can also be held in this embodiment by arranged on the first support body and / or on the second support body spacers in a stable position.
  • a cavity formed between the first support body and the screen medium may be provided for discharging the separated liquid.
  • the coagulated droplets of the liquid emulsified in the fluid to be filtered may, before or upon reaching the sieve medium, come together in such large droplets or liquid areas that they may sink due to gravity and thus be eliminated from the fluid.
  • the liquid can advantageously be deposited and discharged in the space between the coalescing medium and the sieve medium. This is particularly favorable if a designated cavity offers enough space to do so.
  • the sieve medium may comprise a hydrophobic medium. Since the filter element is provided in particular for the discharge of water emulsified in diesel fuel, it is advantageous if a hydrophobic medium is used as the sieve medium, since the sieve medium serves to pass the diesel fuel, but to retain the coagulated water droplets. This is even more favorable if the sieve medium comprises a hydrophobic tissue or, for example, is hydrophobic coated.
  • a first end disk with an outlet for the separated liquid and a second end disk with an outlet for the filtered fluid can be arranged on front edges of the filter medium.
  • the outlet for the liquid may extend across the second end plate.
  • the outlet for the liquid can be adapted to the shape of the end edge of the first support body.
  • the coalescing medium is arranged after the filter medium, in which the liquid droplets coagulate. Then comes the cavity in which the liquid drops are discharged due to gravity.
  • an outlet for the liquid is expediently present in the lower, for example, the first end disk, which communicatively communicates with the cavity, while in the upper, for example, the second end disk, an outlet for the filtered fluid is arranged the space between the screen medium and the second support body is connected and from which the fluid can flow out of the filter element after passing through the screen medium.
  • a receptacle for the first support body may be arranged at the outlet for the separated liquid.
  • the outlet for the liquid, which is arranged in the first end plate, can thus have a receptacle, with the aid of which the first support body can be connected to the first end disk, for example inserted, glued or welded, so that a stable structure of end disk and the first support body is formed which also holds the first support body in its position against the fluid pressure of the fluid to be filtered, the end disk and the first support body being connected to each other in a fluid-tight manner.
  • the respective fold portions extending between an inner fold edge and an outer fold edge can run parallel or at least substantially parallel to one another.
  • the filter medium is in this case folded in such a way that the folding sections extending between an inner folding edge and an outer folding edge run parallel or at least substantially parallel to one another.
  • the folding sections in mutually parallel planes whose surface normal are aligned perpendicular to the longitudinal axis of the filter element.
  • the inner fold edges and the second support body may at least partially form a clean fluid area.
  • the clean fluid region may be at least partially within an envelope formed by the inner fold edges.
  • filtered fluid such as a resource for a motor vehicle, in particular flow out axially.
  • the clean fluid area is provided, for example, between the first support body and the second support body.
  • a flow direction of fluid to be filtered can run from the outer folding edges to the second supporting body.
  • a flow does not occur radially, but at least partially transversely to the filter element cross-section, namely from the outer fold edges to the inner fold edges and further into the clean fluid area.
  • the outer surface may form a cylinder jacket, in particular a circular cylinder jacket.
  • the clean fluid region may be arranged eccentrically to the longitudinal axis of the filter element.
  • the filter element describes a round filter element in the manner of a circular cylinder jacket
  • the clean fluid region lies in particular outside a region of the axis of symmetry.
  • fold sections with variable fold height can be formed between the outer fold edges and the inner fold edges. A variable pleat height allows a particularly favorable use of space within the volume of the filter element, ie within the lateral surface.
  • the second support body may be fluid-tight or have fluid passages.
  • the second support body may form an outer circumferential surface of the filter element.
  • the second support body comprises fluid passages through which the filtered fluid can escape, for example, purposefully.
  • end folds of the pleated filter medium can be arranged in a fluid-tight manner on the first support body and on the second support body.
  • the end folds can be attached in a fluid-tight manner to the support bodies. In this case, an attachment, for example by gluing the end folds, welding or foaming a sealant conceivable.
  • the filter element exclusively comprises a contiguous bellows formed by the pleated filter medium.
  • the design with only one bellows has the advantage that the filter surface is increased.
  • a system for filtering a fluid with a filter element which comprises a filter element receptacle for holding the filter element.
  • the filter element is designed in particular as described above.
  • a clean fluid outlet of the filter element can be provided as a connection piece outside the center of gravity of a cross-sectional area of the filter element. Due to the arrangement of folded filter medium and the second support body next to each other, a predetermined space can be used to advantage.
  • a fuel supply system in particular a diesel fuel supply system, with a filter element is proposed.
  • FIG. 1 is an exploded perspective view of a filter element according to an embodiment of the invention.
  • FIG. 2 is a cross-sectional view of the filter element of FIG. 1;
  • FIG. 3 shows a longitudinal section through the filter element according to FIG. 1;
  • FIG. 4 shows a perspective view of the filter element according to FIG. 1 from an upper side
  • FIG. 5 shows a perspective view of the filter element according to FIG. 1 from an underside
  • Fig. 6 is an exploded perspective view of a filter element according to another
  • FIG. 7 shows a cross-sectional view of the filter element according to FIG. 6; 8 shows a longitudinal section through the filter element according to FIG. 6;
  • FIG. 9 is a perspective view of the first support body of the filter element according to FIG.
  • Fig. 1 1 is a perspective view of the tubular screen fabric of the filter element according to Figure 6.
  • the invention is illustrated by means of a diesel fuel filter, but may also be provided for other filter systems with appropriate adaptation of the construction.
  • 1 shows an exploded perspective view of a filter element 10 according to an embodiment of the invention, while in Figure 2 is a cross-sectional view and in Figure 3 is a longitudinal section of the filter element shown in FIG.
  • the embodiment of the filter element 10 in this case comprises a folded filter medium 20, which is folded in a zigzag shape from a flat material.
  • the material may comprise, for example, a synthetic nonwoven material, paper, scrim or web.
  • Flat filter media suitable for forming pleated media are generally known. It can be used as needed single or multi-layer media.
  • FIG. 1 It can be seen in the orientation of Figure 1 from above the folding profiles 72.
  • Figure 2 it can be seen that the folds have different levels of folds 21. That is, the distance between opposing fold edges 22, 24, which forms a fold portion, changes in the course of the folds.
  • the filter medium 20 forms a kind of bellows, wherein the folding portions are substantially close to each other, but still the fluid can flow between the folding sections.
  • the folding sections are substantially parallel to each other, d. H. the folding sections run in parallel planes.
  • the illustration shows outer folding edges 22 and inner folding edges 24, only some of which are designated by reference numerals. Outer folding edges 22 face outward, and inner folded edges 24 into an interior of the filter element 10.
  • an envelope 23 of the outer fold edges 22 and an envelope 25 of the inner fold edges 24 is arranged, which simulates the shape of the envelope 25 of the inner fold edges.
  • two coalescing media 30, 31 are arranged, which conform to the shape of the envelope 25 during assembly of the filter element 10, since the coalescing media 30, 31 are flexible or the shape of the envelope 25 , or the first support body 12 are adapted.
  • the first support body 12 counteracts a deformation of the folds of the filter medium 20.
  • the sieve medium 32 thus lies against the first support body 12 only via the spacer elements 17.
  • the screen medium 32 is held at a distance from the rear side by the second support body 14 or by spacer elements 18 arranged on the second support body 14.
  • the spacer elements 17, 18 are arranged spaced apart in the longitudinal direction L.
  • the spacer elements 17 ensure in the assembled state between the first support body 12 and the screen medium 32, the formation of a cavity 40, for discharging coalesced in the coalescing media 30, 31 liquid droplets of an emulsified in the fluid to be filtered liquid, so for example water in diesel fuel provided is.
  • the separated liquid can be applied by means of a first end disk 42.
  • drained outlet 44 drain.
  • the outlet 44 extends across the first end plate 42 and is adapted to the shape of the end face of the support body 12.
  • the spacers 18 ensure the formation of a cavity 50 between the screen medium 32 and the second support body 14, which is filled by the filtered fluid which has passed through the screen medium 32 and which can exit through the outlet 48 in the second end disk 46.
  • the sieve medium 32 may in particular comprise a hydrophobic medium, so that coagulated water droplets are prevented from passing through the sieve medium 32 and can be deposited in the cavity 40 in front of it.
  • the first support body 12, on which the coalescing media 30, 31 abut, is supported on the spacer elements 17, 18 on the second support body 14.
  • the first support body 12 faces the inner fold edges 24 and thus forms an envelope 25 of the inner fold edges 24.
  • An envelope 23 of the outer fold edges 22 and the second support body 14 at least in sections form an outer envelope surface 16 of the filter element 10.
  • the outer envelope surface 16 forms a Cylinder jacket, in particular as in the illustrated embodiment, a circular cylinder jacket. Alternatively, other cross-sectional shapes are possible.
  • the second support body 14 may be made fluid-tight or have (not shown) fluid passages 54 for the targeted discharge of the filtered fluid.
  • a receptacle 64 for fastening the first support body 12 is provided in the region of the outlet 44.
  • the support body 12 can be inserted into the receptacle 64.
  • the outer folding edges 22 together with the second supporting body 14 form an outer circumferential surface of the filter element 10.
  • the outer surface is designated 16 and corresponds in the embodiment of Figure 1 a circular cylinder jacket.
  • the clean fluid area 50 is arranged eccentrically to a center of gravity of the cross-sectional area of the outer jacket area 16.
  • the filtered fluid can be used as a purified resource in the motor vehicle.
  • it can be oil or fuel, in particular diesel fuel.
  • Fluid emulsified in the fluid is coagulated as it passes through the coalescing media 30, 31, i. Liquid droplets are enlarged, so that the resulting liquid droplets can be separated from the fluid by gravity and thus flow downwards in the cavity 40 and leave the filter element through the outlet 44 in the first end disk 42.
  • the filter element 10 is particularly suitable as a diesel or gasoline filter element, but other application scenarios are possible.
  • Flow direction 52 extends, as indicated in Figure 2, substantially from the outer fold edges 22 toward the inner fold edges 24 and toward the first support body 12 and on to the second support body 14.
  • the folded filter medium 20 has end folds 34, which are fixed in the transition region between the first and second support body 12, 14 fluid-tight.
  • fluid passages 54 may also be arranged in the lateral surface.
  • openings 70 are further provided, so that the cleaned fluid can penetrate into the clean fluid region 50 as freely as possible.
  • the fluid to be cleaned such as a liquid operating medium
  • a first, lower, and a second, upper, end plate 42, 46 are provided, which are respectively applied to the end edges 26, 28 of the folding profiles 72.
  • the end plates 42, 46 may consist of a plastic material, which is attached to the end edges 26, 28 fluid-tight. This can be done by gluing, welding or other mounting options.
  • the end plates 42, 46 stabilize the folds and separate a raw fluid area 51 from a clean fluid area 50.
  • the upper end plate 46 shown in FIG. 1 has an outlet 48 in the form of a connection port which communicates with the clean fluid area 50.
  • the outlet 48 has a seal 62 in the form of an O-ring for sealing when used in a system for filtering a fluid.
  • the connecting piece 48 is, as well as the clean fluid region 50, arranged eccentrically.
  • a longitudinal axis of the filter element is designated L in FIG.
  • the end plates 42, 46 are provided with protruding edges 66, 68, so that the outer fold edges 22 of the filter medium 20 and the outer second support body 14 are enclosed.
  • the lower edge 66 is disposed on a radially outer side a seal 60 in the form of an O-ring for sealing when used in a system for filtering a fluid.
  • the seal 60 seals the raw fluid region 51 against a space of the separated liquid.
  • the protruding edges 66, 68 of the end plates 42, 46 may also be omitted if the end edges 26, 28 are welded to the end plates 42, 46.
  • the illustrated filter element 10 can be used in particular in a system for filtering a fluid, which is provided with a filter element receptacle for holding the filter element 10.
  • the system may be a fuel supply system, in particular a diesel fuel supply system of a motor vehicle.
  • Figure 4 shows a perspective view of the filter element 10 according to Figure 1 from the top, while in Figure 5 is a perspective view of the filter element 10 according to Figure 1 can be seen from the bottom.
  • the filter element 10 is arranged with the filter medium 20 and the second support body 14 in a circular cylinder arrangement.
  • the outer folding edges 22 form with their envelope 23 together with the second support body 14, the outer circumferential surface 16 of a circular cylinder jacket, which is closed at the end faces of a first end plate 42 and a second end plate 46 fluid-tight.
  • the protruding edges 66, 68 of the two end disks 42, 46 are arranged over the filter medium 20 and the second support body 14 projecting.
  • the edge 66 of the first end plate 42 has the radial O-ring seal 60.
  • the outlet 48 with the radial O-ring seal 62 as a clean fluid outlet is arranged eccentrically to a center of gravity of the cross-sectional area of the outer lateral surface 16.
  • the flow direction 52 of the fluid to be filtered extends from the raw fluid region 51 to the outer fold edges 22 to the interior of the filter element 10.
  • Figure 5 shows the filter element 10 from the bottom with a view of the first end plate 42. Over the cross section of the first end plate 42, the course of the outlet 44 for discharging the separated liquid, so for example water in a diesel fuel filter to recognize.
  • the outlet 44 is curved and extends transversely across the first end plate 42 and follows the shape of the end face of the support body 12.
  • FIGS. 6 to 8 show a filter element 10 according to a further exemplary embodiment of the invention.
  • FIG. 6 shows a perspective exploded view of the filter element 10
  • FIG. 7 shows a cross-sectional view
  • FIG. 8 shows a longitudinal section through the filter element 10.
  • the screen medium 32 is tubular in shape in FIG Hollow cylinder is formed, wherein the screen medium 32 is stiffened by a support structure in the form of a grid as a support member 19.
  • the screen medium 32 is parallel to the longitudinal axis L of the filter element 10, but arranged eccentrically.
  • the screen medium 32 is flowed through by the fluid to be filtered from a radial outer side into the interior of the hollow cylinder.
  • the filtered fluid in the clean fluid region 50 formed in the interior of the screen medium 32 can flow to the outlet 48 of the filter element 10.
  • the screen medium 32 is held by arranged on the first support body 12 and on the second support body 14 spacers 17, 18 in a stable position.
  • the tubular shape of the screen medium 32 can be seen, in which the screen medium 32 is itself stiffened by a support member 19 in the form of a support structure and held in shape.
  • the sieve medium 32 is arranged off-center in the cross section of the filter element 10 in the cavity 40 formed between the first support body 12 and the second support body 14.
  • the first support body 12 is supported by spacer elements 17 on the second support body 14.
  • the coalescing media 30, 31 are arranged between the filter medium 20 and the first support body 12 and form in their shape, as does the envelope of the inner fold edges 24 of the filter cartridge. medium 20, the contour of the first support body 12, so that the coalescing media 30, 31 and the filter medium 20 can create tightly against the first support body 12.
  • the flow direction 52 of the fluid to be filtered leads from an outside with the raw fluid region 51 through the filter medium 20, the coalescing media 31, 30 into the cavity 40, then through the sieve medium 32 radially into the interior of the sieve medium 32 into the clean fluid region 50, from where the filtered Fluid through the outlet 48 ( Figure 6) can flow out.
  • FIG. 9 shows a perspective view of the first support body 12 of the filter element according to FIG. 6.
  • the wavy shape of the support body 12 can be seen along the longitudinal direction L.
  • FIG. 10 shows a plan view of the first end disk 42 of the filter element 10 according to FIG.
  • the circular end disk 42 has an outer edge 66, which terminates with the second support body 14 as the outer jacket of the filter element 10 and on the opposite side (FIG. 6) with the envelope 23 of the filter medium 20.
  • the receptacle 64 of the first support body 12 that is modeled on the shape of the first support body 12 can be seen.
  • the area 44 between the receptacle 64 and the edge 66 is thus to be used as the maximum outlet for the separated liquid.
  • Figure 1 1 shows a perspective view of the tubular screen fabric 32 of the filter element 10 according to Figure 6.
  • the screen medium 23 is formed as a hollow cylinder and is stiffened by a carrier grid as a support member 19 so that the screen medium 32 is formed intrinsically stable and installed accordingly in the filter element 10 can be.
  • the screen medium 32 can withstand the hydraulic pressure of the flowing fluid as low.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

L'invention concerne un élément filtre (10) destiné à filtrer un fluide, comprenant un milieu filtrant (20) plié, lequel comporte des arêtes de pliage externes (22) et des arêtes de pliage internes (24) opposées aux arêtes de pliage externes (22) sur le milieu filtrant (20). Les arêtes de filtrage (22, 24) s'étendent le long d'un axe longitudinal (L) de l'élément filtre (10). L'élément filtre (10) comprend en outre au moins un premier corps de support (12) et un deuxième corps de support (14), le premier corps de support (12) étant tourné vers les arêtes de pliage internes (24) et formant une enveloppe (25) des arêtes de pliage internes (24), et une enveloppe (23) des arêtes de pliage externes (22) et le deuxième corps de support (14) formant au moins en partie une surface externe (16) de l'élément filtre. Au moins un milieu de coalescence (30) permettant de séparer un liquide émergé dans le fluide est agencé entre les arêtes de pliage internes (24) et le premier corps de support (12). En outre, au moins un milieu de tamisage (32) est agencé entre le premier corps de support (12) et le deuxième corps de support (14). L'invention concerne en outre un système comprenant un élément filtre (100) interchangeable ainsi qu'un système d'alimentation en carburant, en particulier un système d'alimentation en gazole, comprenant un élément filtre (10) de ce type.
PCT/EP2016/073404 2015-11-17 2016-09-30 Élément filtre et système de filtration d'un fluide WO2017084798A1 (fr)

Priority Applications (1)

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DE112016005259.6T DE112016005259A5 (de) 2015-11-17 2016-09-30 Filterelement und System zum Filtern eines Fluids

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DE102015014728.5A DE102015014728A1 (de) 2015-11-17 2015-11-17 Filterelement und System zum Filtern eines Fluids
DE102015014728.5 2015-11-17

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DE102021205676A1 (de) 2021-06-04 2022-12-08 Filtration Group Gmbh Filtereinrichtung mit Filterelement

Citations (5)

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Publication number Priority date Publication date Assignee Title
US4618423A (en) * 1983-06-24 1986-10-21 Stanadyne, Inc. Disposable fuel filter/water separator element
EP1712265A1 (fr) * 2004-01-09 2006-10-18 Aisan Kogyo Kabushiki Kaisha Dispositif de filtre
WO2007081425A1 (fr) 2006-01-06 2007-07-19 Fleetguard, Inc. Filtre avec profondeur de pli variable
DE202009000969U1 (de) 2009-01-26 2010-07-01 Mann+Hummel Gmbh Filterelement
DE102013012918A1 (de) * 2013-08-05 2015-02-05 Mann + Hummel Gmbh Flüssigkeitsfilter, insbesondere für Kraftstoff

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Publication number Priority date Publication date Assignee Title
DE19856723B4 (de) * 1998-12-09 2007-08-09 Robert Bosch Gmbh Filtereinsatz für ein einen Einlaß und einen Auslaß aufweisendes Kraftstoffilter
JP4195756B2 (ja) * 1999-07-09 2008-12-10 東京濾器株式会社 フィルタエレメント
EP3145617B1 (fr) * 2014-05-21 2019-09-18 Mann+Hummel GmbH Élément filtrant et ensemble de filtration
DE102014007373B4 (de) * 2014-05-21 2018-01-18 Mann + Hummel Gmbh Faltenförmiges Filterelement
CN106457083B (zh) * 2014-05-21 2019-02-19 曼·胡默尔有限公司 带有折叠的过滤元件的过滤器插入部件

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4618423A (en) * 1983-06-24 1986-10-21 Stanadyne, Inc. Disposable fuel filter/water separator element
EP1712265A1 (fr) * 2004-01-09 2006-10-18 Aisan Kogyo Kabushiki Kaisha Dispositif de filtre
WO2007081425A1 (fr) 2006-01-06 2007-07-19 Fleetguard, Inc. Filtre avec profondeur de pli variable
DE202009000969U1 (de) 2009-01-26 2010-07-01 Mann+Hummel Gmbh Filterelement
DE102013012918A1 (de) * 2013-08-05 2015-02-05 Mann + Hummel Gmbh Flüssigkeitsfilter, insbesondere für Kraftstoff

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