WO2022038073A1 - Système de filtration et élément filtrant - Google Patents

Système de filtration et élément filtrant Download PDF

Info

Publication number
WO2022038073A1
WO2022038073A1 PCT/EP2021/072680 EP2021072680W WO2022038073A1 WO 2022038073 A1 WO2022038073 A1 WO 2022038073A1 EP 2021072680 W EP2021072680 W EP 2021072680W WO 2022038073 A1 WO2022038073 A1 WO 2022038073A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
inflow
housing
filter element
fluid
Prior art date
Application number
PCT/EP2021/072680
Other languages
German (de)
English (en)
Inventor
Fabian Wagner
Daniel Schmid
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
Publication of WO2022038073A1 publication Critical patent/WO2022038073A1/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
    • B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
    • B01D46/0041—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for feeding
    • 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

Definitions

  • the invention relates to a filter system with a filter element for filtering a fluid, in particular for use in the air filter of an internal combustion engine or as a cabin air filter, in particular in a motor vehicle, and a filter element for such a filter system.
  • particle filters are used to filter out particulate contaminants contained in gaseous fluids, such as air.
  • the particle filters have a filter housing with an inlet for the fluid to be filtered and with an outlet for the filtered fluid.
  • the filter element arranged in the filter housing can be flowed through by the fluid to be filtered along a main flow axis, preferably from bottom to top.
  • a sealing device of the filter element enables the required tight fit of the filter element in the filter housing, so that during filter operation an undesired leakage or bypass flow of the gaseous fluid to be filtered around the filter element is counteracted.
  • DE 10 2008 036 913 B3 describes an air filter system with a flat, plate-like filter element which is as compact as possible and which nevertheless provides measures to counteract clogging of the filter element with snow and/or ice.
  • Such an air filter system provides a frame into which a plate-like filter element can be inserted, which has an untreated air side, a clean air side arranged essentially parallel thereto and narrow sides running essentially perpendicular thereto, and with a housing into which the frame together with the filter element can be inserted .
  • the filter element provides a rectangular base area, there are a total of four narrow sides, two longitudinal narrow sides running parallel to one another and two transverse narrow sides running perpendicular to the longitudinal narrow sides.
  • a bypass valve is provided, via which, when open, warm air reaches the area between the housing or the frame and at least one narrow side in such a way that the warm air flows from there through the narrow side into the filter element and flows out of the filter element through the clean air side.
  • An object of the invention is to provide an improved filter system having a filter element for filtering a fluid which counteracts clogging with airborne particles in the fluid.
  • a further object is to create a filter element for use in such a filter system.
  • a filter system for filtering a fluid with a filter housing and a filter element for filtering the fluid, which is arranged in the filter housing so that it can be exchanged between a dirty side and a clean side, with at least one filter bellows which is arranged in a frame and has an inflow side and an outflow side for the fluid to be filtered, wherein the filter housing has a first inlet on the raw side for the inflow of a first fluid stream and a second inlet on the raw side for the inflow of a second stream of fluid, wherein a separating element is provided adjacent to the inflow side of the filter element, that a first inflow channel for supplying the first fluid flow to a first inflow surface of the inflow side and at least one second inflow channel for supplying the second fluid flow to a second inflow surface of the inflow side of the filter element.
  • a filter system for filtering a fluid is proposed, with a filter housing and a filter element for filtering the fluid, which is arranged in the filter housing so as to be interchangeable between a raw side and a clean side, with at least one filter bellows, which is arranged in a frame and has an inflow side and an outflow side for the has to be filtered fluid.
  • the filter housing has a first inlet on the raw side for the inflow of a first fluid stream and a second inlet on the raw side for the inflow of a second stream of fluid.
  • a separating element is provided adjacent to the inflow side of the filter element, which defines a first inflow channel for supplying the first fluid flow to a first inflow surface on the inflow side and at least a second inflow channel for supplying the second fluid flow to a second inflow surface on the inflow side of the filter element.
  • the separation between the first and second inflow surfaces is advantageously designed to be fluid-tight, in particular designed to be at least sufficiently fluid-tight.
  • sufficiently fluid-tight means that the separation is designed so fluid-tight under normal operating conditions that the function of the filter element is practically not disturbed. A leak is tolerable if the function of the filter element remains practically undisturbed.
  • the separation can be effected by a separating element, which is directly adjacent to the inflow side, so that two inflow channels are formed, which feed the two fluid streams onto the first inflow surface and the second inflow surface.
  • a filter system can be provided that allows a favorable formation of variants with or without a suspended particle valve.
  • components can be omitted, so that no additional injection molding tools are necessary if injection molding is used in the production of the filter system.
  • the direction of flow is directed, for example, perpendicularly to the inflow surface and outflow surface, which in the case of a flat filter are provided on opposite flat sides of the filter bellows.
  • the outflow surface and the inflow surface preferably form the surfaces in which the fold edges lie in each case.
  • the filter bellows of the filter element can be folded in a zigzag shape into folds, with parallel fold edges that follow one another in a longitudinal extent of the filter bellows and each extend between opposite end edges of the filter bellows.
  • the filter bellows can be spray-coated all around with a continuous frame, which also encloses the flow channel section.
  • Such a filter bellows can be used advantageously as an air filter, for example of an internal combustion engine, and represents a cost-effective and efficient solution for an air filter.
  • the molded-on frame means that the filter element can be easily installed and, if necessary, also replaced.
  • the filter system according to the invention which can be designed with a plastic-coated filter element (KUF element), for example, in addition to the main filtration area with a first inflow surface of the filter bellows, there is at least one additional filtration area with a second inflow surface, which is used to connect a further suction point of a fluid, for example air, serves.
  • the additional suction point can be connected via the inflow side to the plastic-encapsulated filter element with a partial deflection of the second fluid stream.
  • the second fluid flow can be deflected in such a way that the first and the second inflow surface are on the same side of the filter bellows.
  • the further separated filtration area on the inflow side of the KUF element, which is formed by the second inflow surface, can be located on the edge or inside the filter element.
  • Several further filtration areas with further inflow surfaces can also be provided. These can be designed for the same or for different connection directions.
  • Such a design of the filter system has significant advantages over the prior art, which describes, for example, snow valve solutions with filter elements made of paper, in which a fleece can be attached to the filter element on the raw air side, which directly seals another inflow channel.
  • the filter system according to the invention has a separate inflow surface on the filter element.
  • a separate second fluid stream can flow over the second inflow area of the further filtration area which can also be heated, for example, are supplied.
  • a plastic-coated filter element For example, a zigzag-folded filter bellows made of a fleece or the like can be used as the filter bellows.
  • the filter bellows can advantageously be designed in one piece.
  • the separate, further filtration area of the filter system which is defined by the second inflow area, can be provided as a second inflow channel that is separated from the first fluid flow via a separating element.
  • the separating element can thus effectively prevent overflow to the main filtration area with the first inflow surface.
  • the second inflow channel can be realized separated by the separating element in an edge-side fold area of the filter bellows.
  • the separating element can connect to folds of the bellows.
  • the second flow of fluid can be done with heated air.
  • the filter system can be operated in an emergency mode via the second fluid stream when the first fluid stream is blocked by suspended particles in the fluid, for example snow.
  • the filter task of the filter system can be ensured by the second inflow surface even when the first inflow surface is clogged.
  • the separation between the "normal" air area and the "emergency” air area of the filter system can be formed by a partition wall on the housing side.
  • the "emergency" air area is used to allow fluid to pass through the filter element, even if the "normal” air area is clogged with dirt, snow and the like.
  • the separation and/or sealing in the area of the bellows height of the filter bellows is advantageously provided. For example, instead of jamming a pre-separator between the housing wall and the bellows as in the prior art, the separation and/or sealing can advantageously take place via mounting elements on the housing side, filter element side and separating element side according to a tongue and groove principle.
  • the tongue can be formed on the filter element and on the separating element and the groove on the housing side.
  • the groove can be formed on the filter element and on the separating element, and for the tongue to be formed on the filter housing.
  • This connection via mounting elements can be present on at least two filter element sides.
  • mounting elements can also be arranged on all four sides of the filter element, depending on the mounting requirements and the desired function. In this way, both the separating element and the filter element can be installed quickly and easily. A confusion-proof installation of separating element and filter element can also advantageously take place.
  • the separating element is attached to the filter element itself instead of to the filter housing.
  • Such an integration of the separating element into the filter element enables a simple assembly of the separating element together with the filter element, which ensures that the two fluid streams flow onto the two inflow surfaces provided for this purpose.
  • Advantages of the filter system according to the invention consist in the separation between the "normal” air area and the “emergency” air area of the filter system. Furthermore, the assembly of the filter element via the assembly elements can take place according to a Poka-Yoke principle in an advantageous and non-confusing manner.
  • the connection of the filter element to the filter housing, or also the connection of the separating element to the filter housing, can advantageously bring about a mechanical stabilization and stiffening of the filter housing.
  • the filter system according to the invention can be used particularly advantageously in vehicles in cold countries.
  • a valve can be arranged in or on the second inlet for the second fluid flow.
  • the valve can be conveniently combined with the second inlet, which means that the most compact filter system possible can be achieved.
  • a reliable function of the filter system in normal operation can be achieved with the most effective possible filtering in the area of the first inflow surface.
  • the valve can be designed to be pressure-controlled or can be designed to be controlled by a flow resistance. This advantageously allows a second fluid flow to enter the second inflow channel of the second inflow surface only when the first inflow surface is clogged, since a corresponding negative pressure builds up in the filter system as a result.
  • the area of the second inflow surface in the filter element is thus only used in emergency operation, while in normal operation a first fluid stream flows only over the first inflow surface.
  • the separating element between the second inlet and the inflow side of the filter element can have at least one flow guide for the second fluid flow.
  • Flow control, in particular a flow reversal, in the second inflow channel allows the inlet for the second fluid flow to be arranged on the raw side in a manner that is particularly favorable in terms of installation space.
  • the separating element can be arranged in the lower housing part. This arrangement facilitates the assembly of the filter system since, after the separating element has been arranged, the filter element can be inserted into the lower housing part and the filter housing can then be closed with the upper housing part. The filter element can also be easily replaced in this way, without having to remove the separating element from the lower housing part.
  • the separating element can be arranged on the filter element.
  • the separating element it is also possible for the separating element to be arranged on the filter element, for example on the frame of the filter element. In this way, the separating element can be integrated directly into the filter element. This ensures, for example, the correct positioning of the separating element relative to the filter bellows.
  • the separating element can be connected to complementary mounting elements on the housing via at least two mounting elements on the separating element side.
  • the separating element for example, be connected to the filter housing in a simple and reproducible manner.
  • Such mounting elements can be implemented as a simple plug-in connection.
  • the separating element can also be easily replaced if necessary.
  • the interlocking mounting elements can also ensure an adequate seal to separate the two fluid flows.
  • the assembly elements on the housing side can be provided for sealing off the first and second fluid streams from one another on the raw side via complementary assembly elements on the filter element side.
  • the frame of the filter element can also have mounting elements which engage in the mounting elements on the housing.
  • the filter element can be mounted, for example, in the lower housing part, in which case the lower housing part is then also mechanically reinforced by the filter element.
  • the connection of the assembly elements on the filter element side with the assembly elements on the housing side can ensure that the two fluid flows are sealed off from one another in the filter housing.
  • the mounting elements can be designed in a complementary manner according to a tongue/groove principle.
  • the interlocking of the assembly elements on the housing side with the separating element side and the filter element side can be implemented in a simple manner using a tongue/groove principle.
  • the groove can be arranged on the wall of the filter housing and the tongue on the separating element or the frame of the filter element.
  • the tongue is arranged on the wall of the filter housing and the grooves on the separating element and on the frame of the filter element.
  • the raw side can be sealed from the clean side of the filter housing by means of a seal running around the frame of the filter element, which is arranged between a sealing surface of the lower housing part and a sealing surface of the upper housing part when the filter element is properly installed in the filter housing.
  • an upper edge of the separating element can end with fold edges of folds of the filter bellows on the raw side.
  • the lower housing part can have a circumferential support surface for the filter element, which is aligned with the upper edge of the separating element and a lower edge of the frame of the filter element rests on the support surface in the assembled state.
  • the contact surface ensures that the filter element can dip into the lower housing part up to the depth specified by the contact surface.
  • the lower fold edges of the folds of the filter bellows are thus fixed at a predetermined height, so that the upper edge of the separating element reaches up to the fold edges and the second fluid flow only flows onto the inflow surface provided for this purpose.
  • the invention relates to a filter element for inclusion in a filter system, with at least one filter bellows which is arranged in a frame and which has a first flat inflow side and a second flat outflow side.
  • An outside of the frame has at least two mounting elements on the filter element side, which interact with complementary mounting elements on the housing side when mounted as intended in a filter housing.
  • the filter bellows of the filter element can be folded in a zigzag shape into folds, with parallel fold edges that follow one another in a longitudinal extent of the filter bellows and each extend between opposite end edges of the filter bellows.
  • the filter bellows can be spray-coated all around with a continuous frame, which also encloses the flow channel section.
  • Such a filter bellows can be used advantageously as an air filter, for example of an internal combustion engine, and represents a cost-effective and efficient solution for an air filter.
  • the molded-on frame means that the filter element can be easily installed and, if necessary, also replaced.
  • the filter element according to the invention which can be designed as a plastic-encapsulated filter element (KUF element), for example, in addition to the main filtration area with a first inflow surface of the filter bellows, there is at least one additional filtration area with a second inflow surface, which is used to connect a further suction point of a fluid, for example air, serves.
  • the additional suction point can be connected via the inflow side to the plastic-encapsulated filter element with a partial deflection of the second fluid stream.
  • the second fluid flow can be deflected in such a way that the first and the second inflow surface are on the same side of the filter bellows.
  • the further separated filtration area of the second inflow surface on the KUF element can be located on the edge or inside the filter element.
  • Several filtration areas can also be designed for different connection directions.
  • Such a design of the filter element has significant advantages over the prior art, which describes, for example, snow valve solutions with filter elements made of paper, in which a fleece can be attached to the filter element on the raw air side, which directly seals another inflow channel.
  • the filter element according to the invention has a separate inflow surface, via which a separate second fluid flow, which can also be heated, for example, can be supplied. In this way it is possible to filter different air flows with a plastic-coated filter element. For example, a zigzag-folded filter bellows made of a fleece can be used as the filter bellows.
  • An embodiment of a filter system with such a filter element has significant advantages over the prior art, which describes, for example, snow valve solutions with filter elements made of paper, in which a fleece can be attached to the filter element on the raw air side, which directly seals another inflow channel.
  • the filter system according to the invention has a separate inflow surface on the filter element.
  • a separate second fluid flow, which can also be heated, for example, can be supplied via the second inflow surface of the further filtration area. In this way it is possible to filter different air flows with a plastic-coated filter element.
  • a filter bellows for example zigzag-folded filter bellows made of a fleece or the like can be used.
  • the filter bellows can advantageously be designed in one piece.
  • the mounting elements can be designed in a complementary manner according to a tongue/groove principle.
  • the interlocking of the assembly elements on the housing side with the separating element side and the filter element side can be implemented in a simple manner using a tongue/groove principle.
  • the groove can be arranged on the wall of the filter housing and the tongue on the separating element or the frame of the filter element.
  • the tongue is arranged on the wall of the filter housing and the grooves on the separating element and on the frame of the filter element.
  • a peripheral seal on a strip running around the outside of the frame can be provided for sealing a dirty side from a clean side when installed as intended in a filter housing.
  • a seal can be used in a suitable manner to seal the filter element in the filter housing to separate the raw side from the clean side of the filter system.
  • the filter element can also seal the filter housing from the environment with the seal arranged on the strip at the point of separation between the lower housing part and the upper housing part.
  • a separating element can be provided on the frame, adjacent to the inflow side, for a separate supply of a first fluid flow to a first inflow surface of the inflow side of the filter element and a second fluid flow to a second inflow surface. It is possible for the separating element, which separates the fluid flow on the raw side into a first fluid flow and a second fluid flow, to be arranged on the filter element, for example on the frame of the filter element. In this way, the separating element can be integrated directly into the filter element. This ensures, for example, the correct positioning of the separating element relative to the filter bellows. In this way, the first fluid flow can be guided reliably onto the first inflow surface of the filter element and the second fluid flow onto the second inflow surface.
  • the filter system described can advantageously be used as an air filter, in particular as an air filter of an internal combustion engine or as a cabin air filter, in particular of a motor vehicle.
  • FIG. 1 is an isometric view of a filter system according to an embodiment of the invention
  • FIG. 2 shows an exploded view of the filter system according to FIG. 1;
  • FIG. 3 shows an isometric view of the lower housing part according to FIG. 1 with the separating element installed
  • FIG. 4 shows a detailed view of mounting elements on the housing side and on the separating element side
  • FIG. 5 shows a side view of the filter system according to FIG. 1 with section planes A-A and D-D drawn in;
  • FIG. 6 shows a cross section through the filter system in the section plane AA according to FIG. 5;
  • FIG. 7 shows a detailed view B of mounting elements on the housing side and on the filter element side according to FIG. 6;
  • FIG. 8 shows a longitudinal section through the filter system in section plane D-D according to FIG. 5;
  • FIG. 9 shows a detailed view E of the valve according to FIG. 8.
  • FIG. 10 is a side view of a filter element according to an embodiment of the invention.
  • FIG. 11 shows a detailed view F of the mounting elements on the filter element side according to FIG. 10;
  • FIG. 12 shows an exploded view of a filter system according to a further exemplary embodiment of the invention.
  • FIG. 13 shows an isometric view of the lower housing part according to FIG. 12 with the separating element installed
  • FIG. 15 shows a side view of the filter system according to FIG. 12 with section planes B-B and D-D drawn in;
  • FIG. 16 shows a cross section through the filter system in the section plane D-D according to FIG. 15;
  • FIG. 17 shows a detailed view E of mounting elements on the housing side and on the filter element side according to FIG. 16;
  • FIG. 18 shows a longitudinal section through the filter system in the section plane BB according to FIG. 15;
  • FIG. 19 is a side view of a filter element according to a further embodiment of the invention.
  • FIG. 20 shows a detailed view F of the mounting elements on the filter element side according to FIG. 19.
  • FIG. 1 shows an isometric view of a filter system 100 according to an exemplary embodiment of the invention, which is shown in detail in FIG. 2 in an exploded view.
  • the filter system 100 for filtering a fluid has a filter housing 110 which consists of a lower housing part 114 and an upper housing part 112 .
  • a filter element 10 for filtering the fluid with at least one filter bellows 12, is arranged interchangeably between a raw side 50 and a clean side 52 of the filter housing 110.
  • the filter bellows 12 can consist, for example, of a zigzag-folded fleece, the folds 34 being stabilized against the flow pressure by a stiffening element 78 arranged in the longitudinal direction of the filter bellows 12 .
  • the filter bellows 12 is arranged in a frame 28, for example encapsulated with plastic, and has an inflow side 66 and an outflow side 68 for the fluid to be filtered.
  • the filter housing 110 has a first inlet 102 on the raw side for the inflow of a first fluid flow 60 and a second inlet 106 on the raw side for the inflow of a second fluid flow 62 .
  • the upper part of the housing also has an outlet 104 on the clean side for the filtered fluid.
  • a separator 118 adjacent to the on the inflow side 66 of the filter element 10, which defines a first inflow channel 126 for supplying the first fluid flow 60 to a first inflow surface 54 on the inflow side 66 and at least one second inflow channel 130 for supplying the second fluid flow 62 to a second inflow surface 56 on the inflow side 66 of the filter element 10 .
  • the first inflow channel 126 supplies fluid to the "normal" air area of the filter element 10.
  • the second inflow channel 130 supplies fluid to an "emergency" air area of the filter element 10.
  • a valve 116 is positioned in the second inlet 106 for the second fluid stream 62 .
  • the valve 116 can be designed to be pressure-controlled or can be designed to be controlled by a flow resistance.
  • An outer side 82 of the frame 28 of the filter element 10 has at least two mounting elements 70 on the filter element side which, when mounted as intended in the filter housing 110, interact with complementary mounting elements 72 on the housing and result in an interlocking connection. All four sides of the frame 28 can also have such mounting elements 70 .
  • the assembly elements 70, 72 can, for example, be of complementary design according to the tongue/groove principle.
  • the separating element 118 is arranged in the lower housing part 114 and effects flow deflection for the second fluid flow 62 between the second inlet 106 and the inflow side 66 of the filter element 10, since the fluid flow 62 flows in horizontally and is deflected vertically in the direction of the inflow side 66 of the filter element 10 will.
  • the directions of flow of the first and second fluid streams 60, 62 are represented by dashed arrows in FIG.
  • the separating element 118 could also be mounted directly on the frame 28 of the filter element 10, adjacent to the inflow side 66, for a separate supply of a first fluid flow 60 to a first inflow surface 54 of the inflow side 66 of the filter element 10 and a second fluid flow 62 to a second inflow surface 56 be provided.
  • the raw side 50 is sealed against the clean side 52 of the filter housing 110 by means of a seal 40 running all the way around the frame 28 of the filter element 10, which, when the filter element 10 is properly installed in the filter housing 110, between a sealing surface 166 of the lower housing part 114 and a sealing surface 168 of the upper housing part 112 is arranged.
  • the filter element 10 After the filter element 10 has been inserted into the lower housing part 114, a lower edge 80 of the frame 28 of the filter element 10 rests on the bearing surface 164 inside the lower housing part 114, which is formed by the shoulder 162 in the housing wall 138. Thereafter, the upper housing part 112 is put on, as a result of which the filter housing 110 is closed. Here, the overlapping segment 170 of the upper housing part 112 covers the seal 40 .
  • the two housing parts 112, 114 can be held together, for example, by clamps. In the process, the seal 40 is pressed between the two sealing surfaces 166 , 168 .
  • the separating element 118 is arranged in the lower housing part 114 in such a way that an upper edge 120 of the separating element 118 ends with fold edges 26 of folds 34 of the filter bellows 12 on the raw side.
  • the peripheral support surface 164 for the filter element 10 is aligned with the upper edge 120 of the separating element 118 when the lower edge 80 of the frame 28 of the filter element 10 rests on the support surface 164 in the assembled state. This ensures that the second fluid flow 62 is guided tightly onto the second inflow surface 56 (shown in FIG. 6) of the filter element 10 .
  • FIG. 3 shows an isometric view of the lower housing part 114 according to FIG. 1 with the separating element 118 installed.
  • the separating element 118 is connected via two mounting elements 74 on the separating element to complementary mounting elements 72 on the housing and is thus mounted in the lower housing part 114 .
  • the assembly elements 70, 72, 74 are designed in a complementary manner according to a tongue/groove principle.
  • the mounting elements 72 on the housing are designed as grooves, into which the mounting elements 74 on the separating element side, designed as a spring, can engage.
  • the groove 72 protrudes from the housing wall 138 as a double web. That's how it can be mounting element 74 on the separating element side with one of the two individual webs.
  • the mounting elements 72 on the housing are not only provided for mounting, but also for sealing the first and second fluid streams 60, 62 from one another on the raw side via the complementary mounting elements 70 on the filter element side.
  • FIG. 5 shows a side view of the filter system 100 according to FIG. 1 with section planes A-A and D-D drawn in.
  • Figure 6 shows a cross section through the filter system 100 in the cutting plane A-A according to Figure 5 seen from the inflow side 66 of the filter element 10, while
  • Figure 7 shows a detailed view B of the housing-side and filter element-side mounting elements 72, 70 according to Figure 6.
  • the filter element 10 has mounting elements 70 on all four sides, which can rust with mounting elements 72 on the housing.
  • the inflow side 66 of the filter bellows 12 is divided by the separating element 118 into the first inflow surface 54, on which the first fluid flow flows via the first inlet 102, and into the second onflow surface 56, on which the second fluid flow flows via the second inlet 106.
  • the separation between the first inflow surface 54 and the second inflow surface 56 is shown in broken lines in FIG.
  • FIG. 7 shows in detail how the mounting element 70 designed as a spring on the filter element side engages in the mounting element 72 on the housing side designed as a groove.
  • FIG. 8 shows a longitudinal section through the filter system 100 in the section plane D-D according to FIG. 5, while FIG. 9 shows a detailed view E of the valve 116 according to FIG.
  • the sealing of the raw side 50 and the clean side 52 of the filter system 100 in the filter housing 110 and the sealing of the filter housing 110 can be seen in itself.
  • a seal 40 running around on a strip 38 running around the outside of the frame 28 is provided for sealing the raw side 50 against the clean side 52 when installed as intended in a filter housing 110 .
  • the seal 40 When the filter element 10 is inserted into the housing base 114 is the seal 40 on the sealing surface 166 of the housing base 114 on. If the upper housing part 112 is placed on the lower housing part 114 , the sealing surface 168 of the upper housing part 112 comes to rest on the seal 40 .
  • the overlapping segment 170 of the upper housing part 112 covers the seal 40 .
  • the seal 40 is pressed by the two sealing surfaces 166, 168.
  • the raw side 50 is thus sealed off from the clean side 52 by the filter element 10 .
  • the filter housing 110 is thus also sealed against the environment.
  • the functioning of the valve 116 can be seen in the section in FIG.
  • the valve 116 shows the usual design of a check valve.
  • the valve 116 essentially has a closure element 123 which is pressed against a valve seat 125 by a valve spring 124 pretensioned against a valve housing 122 . In this way, the valve 116 opens under an overpressure from an outside of the filter housing 110, whereby a second stream of fluid 62 can flow into the filter housing 110.
  • FIG. 10 shows a side view of a filter element 10 according to an exemplary embodiment of the invention
  • FIG. 11 shows a detailed view F of the mounting elements 70 on the filter element side according to FIG.
  • a mounting element 70 arranged on the outside 82 of the frame 28 is shown in the side view, which can be seen in FIG. 11 in an enlargement.
  • the mounting element 70 is designed as a web.
  • the side view in FIG. 10 also shows the seal 40 arranged on the peripheral strip 38 on the frame 28 of the filter element 10 , which represents a peripheral edge 76 of the filter element 10 .
  • FIGS. Figure 12 shows an exploded view of the filter system 100
  • Figure 13 shows an isometric view of the lower housing part 114 according to Figure 12 with the installed separating element 116
  • Figure 14 shows a detailed view of the housing-side and separating-element-side installation elements 72, 74.
  • Figure 15 shows a side view of the Filter system 100 according to FIG. 12 with section planes BB and DD drawn in
  • FIG. 16 a cross section through the filter system 100 in the section plane DD according to FIG. 15 and FIG 15, while
  • FIG. 19 shows a side view of the filter element 10
  • FIG. 20 shows a detailed view F of the mounting elements 70 on the filter element side according to FIG.
  • the filter system 100 shown in FIGS. 12 to 20 basically has the same structure as the filter system 100 shown in FIGS. in which the housing-side mounting elements 72 are designed as springs. In order to avoid unnecessary repetition, only the figures with the relevant different features will be discussed.
  • the housing-side mounting elements 72 can be seen as webs protruding inwards from the housing wall 138, which can be encompassed by the separating-element-side mounting element 74 in order to produce a stable connection between the housing lower part 114 and the separating element 116 .
  • the assembly elements 74 on the side of the separating element can be designed in the same way as shown in the exemplary embodiment illustrated in FIG.
  • the cross section of the filter element 10 in Figure 16 shows that the filter element 10 and the lower housing part 114 only have mounting elements 70, 72 on two sides, which are used for the connection between the lower housing part 114 and the separating element 116, as shown in Figure 14, and also for the Filter element 10 are used.
  • the enlargement in FIG. 17 shows how the housing-side mounting element 72 designed as a web engages in a groove in the frame 28 of the filter element 10 as the filter-side mounting element 70 .
  • the mounting element 70 on the filter element side, designed as a groove, in the frame 28 of the filter element 10 can be clearly seen in FIG. 19 and in an enlarged view in FIG.

Landscapes

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

Abstract

L'invention concerne un système de filtration (100) pour filtrer un fluide, comprenant un boîtier de filtre (110) et un élément filtrant (10) disposé de manière interchangeable dans le boîtier de filtre (110) entre un côté non filtré (50) et un côté filtré (52) pour filtrer le fluide, cet élément présentant au moins une structure filtrante en accordéon (12) qui est disposée dans un cadre (28) et qui présente un côté afflux (66) et un côté sortie (68) pour le fluide à filtrer. Le boîtier de filtre (110) présente une première entrée (102) côté non filtré pour l'entrée d'un premier flux de fluide (60) et une deuxième entrée (106) côté non filtré pour l'entrée d'un deuxième flux de fluide (62). Un élément de séparation (118) est placé de manière adjacente au côté afflux (66) de l'élément filtrant (10) et délimite un premier canal d'amenée (126) pour amener le premier flux de fluide (60) sur une première surface d'afflux (54) du côté afflux (66) et au moins un deuxième canal d'amenée (130) pour amener le deuxième flux de fluide (62) sur une deuxième surface d'afflux (56) du côté afflux (66) de l'élément filtrant (10). L'invention concerne en outre un élément filtrant (10).
PCT/EP2021/072680 2020-08-19 2021-08-16 Système de filtration et élément filtrant WO2022038073A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020121710.2 2020-08-19
DE102020121710.2A DE102020121710A1 (de) 2020-08-19 2020-08-19 Filtersystem und Filterelement

Publications (1)

Publication Number Publication Date
WO2022038073A1 true WO2022038073A1 (fr) 2022-02-24

Family

ID=77466003

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2021/072680 WO2022038073A1 (fr) 2020-08-19 2021-08-16 Système de filtration et élément filtrant

Country Status (2)

Country Link
DE (1) DE102020121710A1 (fr)
WO (1) WO2022038073A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004036083A1 (de) * 2004-07-24 2006-02-16 Audi Ag Ansaugvorrichtung
JP2008232111A (ja) * 2007-03-23 2008-10-02 Toyota Motor Corp エアクリーナ
DE102008036913B3 (de) 2008-08-01 2009-11-26 Joma-Polytec Kunststofftechnik Gmbh Luftfiltersystem
US20100186596A1 (en) * 2009-01-28 2010-07-29 Mann+Hummel Gmbh Air cleaner with snow bypass valve
EP2305992A2 (fr) * 2009-10-05 2011-04-06 Mann + Hummel GmbH Filtre à air pour moteur à combustion interne
DE102016011158A1 (de) * 2016-09-16 2018-03-22 Mann + Hummel Gmbh Filterelement und Filtersystem

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004036083A1 (de) * 2004-07-24 2006-02-16 Audi Ag Ansaugvorrichtung
JP2008232111A (ja) * 2007-03-23 2008-10-02 Toyota Motor Corp エアクリーナ
DE102008036913B3 (de) 2008-08-01 2009-11-26 Joma-Polytec Kunststofftechnik Gmbh Luftfiltersystem
US20100186596A1 (en) * 2009-01-28 2010-07-29 Mann+Hummel Gmbh Air cleaner with snow bypass valve
EP2305992A2 (fr) * 2009-10-05 2011-04-06 Mann + Hummel GmbH Filtre à air pour moteur à combustion interne
DE102016011158A1 (de) * 2016-09-16 2018-03-22 Mann + Hummel Gmbh Filterelement und Filtersystem

Also Published As

Publication number Publication date
DE102020121710A1 (de) 2022-02-24

Similar Documents

Publication Publication Date Title
DE4218396B4 (de) Filtereinrichtung, insbesondere zum Filtrieren der Ansaugluft eines Verbrennungsmotors
DE102009025393B4 (de) 3-stufiger Kraftstofffilter
EP3079794B1 (fr) Filtre d'espace intérieur et ensemble de filtration
EP2463009B1 (fr) Ensemble filtre
WO2015193341A2 (fr) Filtre et cartouche filtrante
EP2675547A1 (fr) Élément de filtre à air, carter de filtre à air et système de filtre à air
DE202005009468U1 (de) Filterelement
EP2582444B1 (fr) Cartouche filtrante
EP3446768B1 (fr) Filtre intérieur et dispositif filtrant
WO2020244888A1 (fr) Élément filtrant et système de filtre
EP2714231B1 (fr) Filtre a huile d'une boite de vitesses pour vehicules automobiles
DE102006039952A1 (de) Luftfilter
WO2022038073A1 (fr) Système de filtration et élément filtrant
DE102014008701B4 (de) Filter mit variierbarer Abströmrichtung
EP3421112B1 (fr) Élément filtrant plat, en particulier destiné à la filtration de gaz
WO2022038138A1 (fr) Élément filtrant et système de filtration
WO2022038142A1 (fr) Élément filtrant et système de filtrage
EP3297745A1 (fr) Élément filtrant, en particulier pour la filtration de gaz
DE102022106562A1 (de) Filterelement und Filtersystem
WO2022038076A1 (fr) Élément filtrant plat, en particulier pour la filtration de gaz
DE102021126857A1 (de) Filterelement und Filtersystem
WO2023061943A1 (fr) Élément filtrant et système de filtration
DE102022102013A1 (de) Filterelement mit zickzackförmig gefaltetem Filtermedium und Filtersystem
WO2024099963A1 (fr) Appareil de filtration
DE102022106702A1 (de) Filterelement, insbesondere Luftfilterelement

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21759094

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21759094

Country of ref document: EP

Kind code of ref document: A1