WO2025169034A1

WO2025169034A1 - Air filtration assembly

Info

Publication number: WO2025169034A1
Application number: PCT/IB2025/050719
Authority: WO
Inventors: Giorgio Girondi
Original assignee: UFI Filters SpA
Current assignee: UFI Filters SpA
Priority date: 2024-02-09
Filing date: 2025-01-23
Publication date: 2025-08-14
Anticipated expiration: 2026-08-09

Abstract

The invention is an air filtration assembly (1) comprising : (i) a support body (20) comprising an air passage mouth, wherein the support body (20) extends along a body axis (X-X) and comprises body side walls (201) and a transverse body plane (205), substantially transverse to the axis (X-X); ii) a filtering cartridge (6) which extends along a cartridge axis (X'-X' ) and comprises: - at least two tubular filtering septa (7); a plate group (8) to which said tubular filtering septa (7) are engaged, wherein said plate group (8) comprises a sealing profile (9). Said support body (20) comprises a protruding device (250) that protrudes with respect to a body side wall (201) and is suitable for preventing the axial seal engagement of the plate group (8) with the transverse body plane (205). The protruding device (250) comprises a device side wall (251) positioned at a different axial elevation with respect to the transverse body plane (205) and at a different distance from the body axis (X-X) with respect to the body side wall (201) from which the protruding device (250) extends. Furthermore, the protruding device (250) comprises two device connection walls (252) that connect the device side wall (251) to the respective body side wall (201). Said filtering cartridge (6) is configured to connect to the support body (20) so that the sealing profile (9) sealingly engages the body side walls (201), the device side wall (251) and the two device connection walls (252).

Description

"AIR FILTRATION ASSEMBLY"

DESCRIPTION

Field of application

[0001] The present invention relates to an air filtration assembly . Furthermore , the present invention also relates to an engine air supply system of a vehicle that comprises the air filtration assembly . In addition, the present invention also relates to a passenger compartment air ventilation system of a vehicle that comprises the air filtration assembly .

[0002] The context of the present invention falls within the air filtration assemblies of the automotive sector . Speci fically, it refers to air filtration assemblies suitable for filtering the air that is drawn from the environment to be brought into the combustion chamber of the internal combustion engine and to air ventilation assemblies suitable for filtering the air that is drawn from the external environment to ventilate the passenger compartment .

[0003] In particular and with particular reference to engine air filtration assemblies , the purpose of such assemblies is to filter the air in such a way as to eliminate therefrom suspended particles that , when arriving in the combustion chamber, may damage the engine ( or its components ) or cause inef fective combustion . [0004] Furthermore , with particular reference to passenger compartment air filtration assemblies , the purpose of such assemblies is to filter air in such a way as to prevent the entry of dust and/or solid contaminants and/or gaseous contaminants into the passenger compartment .

[0005] It is therefore essential that air filtration is performed ef fectively and ef ficiently, avoiding the possibility of leakage and thus avoiding the possibility of contaminants reaching the combustion chamber or the passenger compartment .

[0006] The known air filtration assemblies comprise speci fic housings and speci fic filtering cartridges , typically panel elements housed in said housing .

[0007] The main problem with known air filtration assemblies lies in the mal function of the filtering cartridge typically due to an incorrect positioning of the cartridge inside the housing .

[0008] Speci fically, in fact , in the known solutions of the prior art there is typically a problem of incorrect positioning of the filtering cartridge , which engages the housing with a non-ef fective seal , thereby mani festing in a partial leakage of air and resulting in inef ficient filtration . Furthermore , carrying out operations for inserting the filtering cartridge into the housing in an incorrect manner entails potential damage to the filtering cartridge and/or its sealing profiles , again causing inef fective air filtration .

[0009] In order to overcome this problem, in the prior art multiple embodiments of air filtration assemblies have been implemented in which the filtering cartridges and/or special housing components of the filtering cartridges are subj ect to speci fic movements suitable for performing correct positioning between the parts .

[0010] However, it has been veri fied that these solutions do not fully solve the aforementioned technical problem . Such known solutions , in fact , lack simple maintenance operations and therefore lack simple ways of inserting new filtering cartridges inside the respective housings , thus making for a high probability of error, leading to the possibility that a filtering cartridge is erroneously housed inside the box or in general incorrectly positioned .

Solution of the invention

[0011] Therefore , there appears to be a strong need to provide an air filtration assembly that has a support body and a filtering cartridge mutually engageable in a simple , intuitive manner, but above all avoiding an incorrect positioning that would give rise to unwanted leakage or breakage . [0012] The obj ect of the present invention is precisely to provide an air filtration assembly in which the aforementioned need is resolved and in which the needs of the speci fic field of application are also met in an ef fective and ef ficient manner .

[0013] This obj ect is achieved by means of the air filtration assembly claimed in claim 1 . In addition, this obj ect is also achieved, in accordance with claim 17 , by an engine air supply system of a vehicle , comprising the filtration assembly . Furthermore , this obj ect is also achieved, in accordance with claim 18 , by a passenger compartment air supply system, comprising the filtration assembly .

[0014] The claims that are dependent upon these claims describe preferred variant embodiments involving further advantageous aspects .

Description of the drawings

[0015] Further features and advantages of the invention will become clear from the description given below of its preferred embodiments , given as non-limiting examples , in reference to the attached figures , wherein :

[0016] - Fig . la, lb, 1c, Id and le are schematic views of some variant embodiments of air supply systems according to the present invention;

- Fig . 1 ' is an enlarged detail view of a perspective view with separate parts of a filtration assembly according to the present invention;

- Fig . 2 is a perspective view of a filtering cartridge of a filtration assembly according to the present invention in accordance with a preferred embodiment ;

- Fig . 3 is a sectional view of an engaged support body and filtering cartridge of a fi ltration assembly according to the present invention in accordance with a preferred embodiment ;

- Fig . 3a and Fig . 3b are two enlarged views , respectively, of region A and region B of Fig . 3 ;

- Fig . 4 is a top view of the support body of a filtration assembly according to the present invention in accordance with a preferred embodiment ;

- Fig . 4a and Fig . 4b are two enlarged views , respectively, of region A and region B of Fig . 4 ;

- Fig . 5 is a perspective view of a detail , in particular of a protruding device , of the support body of a filtration assembly according to the present invention in accordance with a preferred embodiment ;

- Fig . 6 is a frontal detail view of a filtering cartridge of a filtration assembly according to the present invention in accordance with a preferred embodiment ;

Fig . 7 is an enlarged detailed view of a perspective view with separate parts of a filtration assembly according to the present invention in accordance with an embodiment variant ;

- Fig . 8 is a perspective view of a filtering cartridge of a filtration assembly according to the present invention in accordance with a further preferred embodiment ;

- Fig . 9 is a sectional view of an engaged support body and filtering cartridge of a fi ltration assembly according to the present invention in accordance with a further preferred embodiment ;

- Fig . 9a and Fig . 9b are two enlarged views , respectively, of region A and region B of Fig . 9 ;

- Fig . 10 is a top view of the support body of a filtration assembly according to the present invention in accordance with a further preferred embodiment ;

- Fig . 10a and Fig . 10b are two enlarged views , respectively, of region A and region B of Fig . 10 ;

- Fig . 11 is a perspective view of a detail , in particular of a protruding device , of the support body of a filtration assembly according to the present invention in accordance with a further preferred embodiment ;

- Fig . 12 is a frontal detail view of a filtering cartridge of a filtration assembly according to the present invention in accordance with a preferred embodiment .

Detailed description

[0017] With reference to the accompanying figures , reference numeral 1 indicates an air filtration assembly according to the present invention .

[0018] According to a preferred embodiment , the air filtration assembly 1 is suitable for being part of a vehicle . In particular, the air filtration assembly 1 is suitable for being part of the engine air supply system of a vehicle . Preferably, the air filtration assembly 1 is therefore connectable to an air intake mani fold of a vehicle . Preferably, the air filtration assembly 1 is fluidically connectable to the combustion chamber of a combustion engine of a vehicle by means of said air intake mani fold . In particular, the air filtration assembly 1 is suitable for being part of the passenger compartment air ventilation system of a vehicle . Preferably, the air filtration assembly 1 is therefore connectable to an air intake mani fold of a vehicle . Preferably, the air filtration assembly 1 is fluidically connectable to the passenger compartment of a vehicle by means of said air intake mani fold .

[0019] Preferably, the air filtration assembly 1 is crossable at the intake by ambient air . Inside the air filtration assembly 1 , the ambient air is therefore separated from the unwanted elements suspended therein .

[0020] As mentioned, the subj ect matter of the present invention also includes the engine air supply system of a vehicle , comprising the air filtration assembly 1 .

[0021] As mentioned, the subj ect matter of the present invention also includes the passenger compartment air supply system of a vehicle , comprising the air filtration ass e mb 1 y 1 .

[0022] According to the present invention, the air filtration assembly 1 has an extens ion in a given direction .

[0023] According to the present invention, the air filtration assembly 1 of a vehicle comprises a support body 20 and a filtering cartridge 6 engageable with said support body 20 .

[0024] The support body 20 extends with respect to a body axis X-X .

[0025] The filtering cartridge 6 extends with respect to a cartridge axis X' -X' .

[0026] Preferably, with the support body 20 and the filtering cartridge 6 coupled therewith, the body axis X- X and the cartridge axis X' -X' are parallel , at least for one section, preferably coincident .

[0027] In particular, the filtering cartridge 6 is engageable , and as then fully described, at least partially insertable into the support body 20 in an axial direction, i . e . , along the body axis X-X .

[0028] According to a preferred embodiment , the body axis X-X and/or the cartridge axis X' -X' do not necessarily extend rectilinearly, e . g . , the body axis X-X and/or the cartridge axis X' -X' have a curvilinear or broken course . [0029] In the present discussion, "axial" means a dimension/direction parallel to an axis or to the section of axis proximal to the component to which reference is made ; "transverse" means a dimension/direction orthogonal to the axis or section of axis in the vicinity of the component to which reference is made and also lying on an imaginary plane , in turn substantially orthogonal to the axis or to the section of axis closest to the component to which reference is made ; "radial" means a dimension/direction substantially transverse , preferably orthogonal , to the axis or section of axis in the vicinity of the component to which reference is made with respect to an imaginary plane on which the axis lies , or to the section of axis closest to the component to which reference is made .

[0030] Preferably, said support body 20 is fluidically connectable on one side to the external environment and on the other side to an air intake mani fold of the vehicle . [0031] According to a preferred embodiment , the air filtration assembly 1 comprises a housing 2 comprising said support body 20 and a box-like body 25 . Preferably, the support body 20 and the box-like body 25 are mutually engageable , defining a filtration chamber 200 in which the filtering cartridge 6 is housed .

[0032] The housing 2 comprises at least one inlet air passage and one outlet air passage . Preferably, the filtration chamber 200 is interposed between the at least one air inlet mouth 21 and the at least one air outlet mouth 22 .

[0033] The support body 20 comprises at least one air passage mouth . Preferably, said air passage mouth comprised within the support body 20 is the air outlet mouth 22 .

[0034] Preferably, the box-like body 25 comprises at least one air passage mouth . Preferably, said air passage mouth comprised in the box-like body 25 is the air inlet mouth 21 .

[0035] Preferably, the filtering cartridge 6 comprises at least two tubular filtering septa 7 , which extend parallel to each other, pre ferably parallel to the cartridge axis X' -X' .

[0036] Said tubular filtering septa 7 are crossable in parallel by filtering . [0037] Preferably, said tubular filtering septa 7 are crossable radially in filtration . Preferably, they are crossable from the outside to the ins ide .

[0038] Furthermore , the filtering cartridge 6 comprises a plate group 8 with which said tubular filtering septa 7 are engaged .

[0039] Preferably, the tubular filtering septa 7 j ut out from the plate group 8 .

[0040] According to an alternative embodiment , the filtering cartridge 6 comprises an annular-shaped filtering medium suitable for surrounding the cartridge axis X' -X' .

[0041] Preferably, the filtering cartridge 6 comprises an annular-shaped filtering medium suitable for surrounding a cavity which extends substantially parallel to the cartridge axis X' -X' .

[0042] Preferably, the filtering medium is crossable in a radial direction from the outside to the inside .

[0043] Furthermore , the filtering cartridge 6 comprises a plate group 8 with which the filtering medium i s engaged . [0044] Preferably, the plate group 8 comprises , in fact , one or more through openings 87 through which the fluid flows in filtration .

[0045] Preferably, at each tubular filtering septum 7 , the plate group 8 comprises a through opening 87 . [0046] Preferably, said tubular filtering septa 7 comprise a filtering material made of non-woven fabric formed of synthetic fibers , for example polypropylene .

[0047] According to a preferred embodiment , the tubular filtering septa 7 are aligned in at least one row .

[0048] According to a preferred embodiment , the tubular filtering septa 7 are aligned in a plurality of parallel rows .

[0049] According to the present invention, the support body 20 comprising body side walls 201 extending about said body axis X-X .

[0050] Furthermore , according to the present invention the support body 20 comprises a transverse body plane 205 substantially transverse to the body axis X-X .

[0051] According to what is described below and shown by way of example , said transverse body plane 205 has a substantially peripheral development .

[0052] According to what is described below and what is shown by way of example , said transverse body plane 205 has a substantially peripheral development surrounding said body axis X-X .

[0053] Preferably, from or on the body side walls 201 a step protrudes transversely on which said transverse body plane 205 may be identi fied . According to a preferred embodiment , body side walls 201 and transverse body plane 205 are positioned proximal to an end edge of the support body 20 , so that the at least two tubular filtering septa 7 are positioned on the opposite side with respect to the air passage mouth .

[0054] Preferably, the at least two tubular filtering septa

7 are housed mainly in the box-like body 25 .

[0055] According to the present invention, the plate group

8 comprises a sealing profile 9 suitable for sealingly engaging the support body 20 .

[0056] According to a preferred embodiment , the plate group 8 comprises a peripheral edge 800 and said sealing profile 9 is positioned at said peripheral edge 800 .

[0057] Preferably, the sealing profile 9 is speci fically suitable for performing a radial sealing on the support body 20 .

[0058] Preferably, the plate group 8 is also suitable for axially engaging, not necessarily seal , the support body 20 . In particular, in the engagement action between the filtering cartridge 6 and the support body 20 , the plate group 8 , preferably the sealing profile 9 , is suitable for abutting the transverse body plane 205 by performing a stop stroke at the engagement .

[0059] Preferably, the plate group 8 , in particular the sealing profile 9 , performs an axial seal in the regions wherein it engages the transverse body plane 205 . [0060] According to the present invention, the support body 20 comprises a protruding device 250 that protrudes with respect to a body side wall 201 .

[0061] According to a preferred embodiment , the support body 20 comprises a plurality of protruding devices 250 .

[0062] According to a preferred embodiment , the protruding device 250 is positioned in a region between two tubular filtering septa 7 with the filtering cartridge 6 engaged with the support body 20 .

[0063] According to the present invention, the protruding device 250 protrudes in such a way as to prevent the axial seal engagement of the plate group 8 with the transverse body plane 205 . That is to say, the protruding device 250 protrudes in such a way as to constitute , with its presence , an obstacle to a sealed coupling of the plate group 8 on the transverse body plane 205 .

[0064] According to a preferred embodiment , the presence of a protruding device 250 identi fies an interruption of the transverse body plane 205 . In other words , the transverse body plane 205 extends peripherally to the body axis X-X, having an interruption at the presence of a protruding device 250 .

[0065] Preferably, the protruding device 250 comprises a protuberance 256 . In the insertion direction, the filtering cartridge 6 , in particular the sealing profile 9 , first encounters said protuberance 256 of the transverse body plane 205 .

[0066] Preferably, said protuberance 256 extends axially, substantially parallel to the body axi s X-X, from said transverse body plane 205 .

[0067] Preferably, said protuberance 256 extends axially, substantially parallel to the body axis X-X, beyond the transverse body plane 205 .

[0068] Preferably, the protruding device 250 comprises a pair of protuberances 256 spaced apart from each other .

[0069] The protruding device 250 comprises a device side wall 251 .

[0070] Preferably, said device side wall 251 is substantially parallel to the body side wall 201 .

[0071] Furthermore , said device side wall 251 is positioned at a di f ferent axial elevation with respect to the transverse body plane 205 .

[0072] In particular, said transverse body plane 205 is positioned at an intermediate axial elevation between the device side wall 251 and said protuberance 256 .

[0073] The protruding device 250 further comprises two device connection walls 252 connecting the device side wall 251 to the body side wall 201 .

[0074] Preferably, therefore , the device side wall 251 and the body side wall 201 are at a di f ferent distance from the body axis X-X .

[0075] Preferably, the device side wall 251 is at a di f ferent radial distance from the body axi s X-X with respect to the body side wall 201 from which the respective protruding device 250 extends .

[0076] According to a preferred embodiment , the device connection walls 252 are inclined with respect to the device side wall 251 and/or with respect to the body side wall 201 .

[0077] According to a preferred embodiment , the device connection walls 252 are arched .

[0078] According to the present invention, the sealing profile 9 is shaped to sealingly engage the body side walls 201 , the device side wall 251 and the two device connection walls 252 .

[0079] Preferably, the sealing profile 9 is configured to radially engage the body side walls 201 , the device side wall 251 and the two device connection wal ls 252 .

[0080] Preferably, the sealing profile 9 is shaped so as to engage the body side walls 201 , the device side wall 251 and the two device connection walls 252 in a radial sealing manner .

[0081] Preferably, the sealing profile 9 performs a peripheral radial sealing .

[0082] Preferably, the sealing profile 9 engages the body side wall 201 in a body sealing region H and the device side wall 251 in a device sealing region h, wherein said body sealing region H has a greater axial extension than the axial extension of the device sealing region h .

[0083] According to a preferred embodiment , the body seal H is obtained by means of two radial profiles superimposed along the cartridge axis X' -X' .

[0084] Preferably, the sealing profile 9 engages the body side wall 201 in a body sealing region H and the sealing profile 9 engages the device side wal l 251 in a device sealing region h, wherein the body sealing region H and the device sealing region h are at di f ferent axial elevation .

[0085] According to a preferred embodiment , the protruding device 250 comprises a transverse device plane 255 positioned spaced apart both radially and axially from the transverse body plane 205 .

[0086] Preferably, the sealing profile 9 is shaped so as to axially engage , in abutment , the transverse body plane 205 .

[0087] According to a preferred embodiment , the sealing profile 9 is configured to axially engage , in abutment , the transverse body plane 205 .

[0088] As described below, only in some preferred embodiments is the sealing profile 9 shaped to engage the transverse device plane 255 .

[0089] According to a preferred embodiment , the protruding device 250 comprises an overhang 259 that extends in an axial direction, preferably parallel to the device side wall 251 .

[0090] Preferably, the overhang 259 extends axially from the transverse device plane 255 .

[0091] Preferably, the overhang 259 comprises an overhang wall 2590 .

[0092] Preferably, the overhang wall 2590 is located at a di f ferent axial elevation with respect to the transverse body plane 205 .

[0093] Preferably, the sealing profile 9 is shaped to be housed, at least partially, in the space between the device side wall 251 and overhand 259 , overhang wall 2590 in particular .

[0094] Preferably, the sealing profile 9 is configured to be at least partially housed in the space between the device side wall 251 and the overhang 259 , in particular the overhang wall 2590 .

[0095] Preferably, the sealing profile 9 is shaped to be housed in the space between the device side wall 251 and the overhang 259 , in particular the overhang wall 2590 .

[0096] Preferably, the sealing profile 9 is configured to be housed in the space between the device side wall 251 and the overhang 259 , in particular the overhang wall 2590 .

[0097] According to a preferred embodiment , the sealing profile 9 sealingly engages both the device side wall 251 and the overhang 259 , in particular the overhang wall 2590 .

[0098] According to a preferred embodiment , the sealing profile 9 is configured to sealingly engage the device side wall 251 , the body side walls 201 and the device connection walls 252 , as well as the overhang 259 .

[0099] According to a preferred embodiment , the sealing profile 9 engages both the device side wall 251 and the overhang 259 , in particular the overhang wall 2590 in a radially sealing manner .

[00100] According to a preferred embodiment , the sealing profile 9 is configured to sealingly engage the device side wall 251 , the body side walls 201 , and the device connection walls 252 by means of a sealing portion facing radially outward and to sealingly engage the overhang 259 by means of a sealing portion facing radially inward .

[00101] In other words , according to a preferred embodiment the sealing profile 9 at the protruding device 250 is compressed on both sides by both the device side wall 251 and the overhang 259 . [00102] According to a preferred embodiment , the overhang wall 2590 is substantially oriented parallel to the device side wall 251 .

[00103] According to a preferred embodiment , the overhang wall 2590 is inclined with respect to the device side wall 251 . In particular, the overhang wall 2590 is inclined by a wall angle a with respect to the direction parallel to the device side wall 251 .

[00104] Preferably, the wall angle a is less than 90 ° .

[00105] Preferably, the wall angle a is approximately

10 ° .

[00106] Preferably, the wall angle a is approximately

5 ° .

[00107] Preferably, the features of the overhang 259 and the overhang wall 2590 described in the case of a support body with a protruding device 250 are also valid with the support body 20 having a plurality of protruding devices 250 .

[00108] Preferably, in an embodiment comprising a plurality of protruding devices 250 , the overhang wall 2590 of each protruding device 250 is inclined by a respective wall angle a, p .

[00109] According to a preferred embodiment , said wall angles a and p have the same value .

[00110] According to a preferred embodiment , said wall angles a, p have a different value.

[00111] According to a preferred embodiment, the overhang wall 2590 of a protruding device 250 is parallel to the body axis X-X, while the overhang wall 2590, or the further overhang walls 2590, are inclined, having a respective wall angle or respective wall angles.

[00112] According to a preferred embodiment, said wall angles a, p are mutually different from each other, both being less than 90°.

[00113] Preferably, in an embodiment comprising a plurality of protruding devices 250, the overhang wall 2590 of each protruding device 250 extends in height for each respective axial section HA1, HA2.

[00114] According to a preferred embodiment, said axial sections HA1, HA2 are different from each other.

[00115] Preferably, said axial sections HA1, HA2 have a smaller axial extension than the body sealing region H.

[00116] Preferably, in an embodiment comprising a plurality of protruding devices 250, the respective overhangs 259 differ from each other in terms of wall angle and/or axial section.

[00117] According to a preferred embodiment, the sealing profile 9 also axially abuts the transverse device plane 255.

[00118] Preferably, the sealing profile 9 engages the transverse device plane 255 in an axially sealing manner . [00119] According to a preferred embodiment , the seal engagement of the sealing profile 9 over the entire perimeter of the support body 20 is ensured, even in the presence of the protruding device 250 .

[00120] In other words , even in the presence of the protruding device 250 , the radial seal engagement of the sealing profile 9 over the entire perimeter of the support body 20 is ensured .

[00121] According to a preferred embodiment , the protruding device 250 comprises a through pipe 257 that extends from the transverse device plane 255 in the direction of the air outlet mouth 22 .

[00122] Preferably, said through pipe 257 extends into the filtration chamber 200 on the clean side of the filtering cartridge 6 , i . e . , fluidly downstream of the sealing profile 9 with which the filtering cartridge 6 engages the filter body 20 , separating the dirty side from the clean side of the filtering assembly .

[00123] Preferably, said through pipe 257 is suitable for veri fying the correct positioning of the filtering cartridge 6 , in the absence of which the sealing is not performed and the dirty side and the clean side end up in fluid communication .

[00124] According to a preferred embodiment , the protruding device 250 comprises a through pipe 257 that extends from an overhang wall 2590 in the direction of the air outlet mouth 22 .

[00125] The features of the through pipe 257 described in the case of a support body with a protruding device 250 are also valid with the support body 20 having a plurality of protruding devices 250 .

[00126] According to a preferred embodiment , the plate group 8 comprises a recess 86 , wherein, with the filtering cartridge 6 coupled to the support body 20 , said protuberance 256 is housed in the recess 86 .

[00127] Preferably, when a plurality of support devices 250 is present , the plate group comprises a plurality of recesses 86 .

[00128] According to a preferred embodiment , the plate group 8 comprises a peripheral edge 800 on which the sealing profile 9 lies .

[00129] According to a preferred embodiment , the plate group 8 is a single monolithic component .

[00130] Preferably, the plate group 8 is a single monolithic component made of an elastomeric material .

[00131] Preferably, the plate group 8 is a single monolithic component made of closed-cell polyurethane foam .

[00132] Preferably, the plate group 8 is a single monolithic component made of closed-cell polyurethane foam with a Shore A hardness ranging between 50 and 75 , preferably between 55 and 65 .

[00133] According to a preferred embodiment , the sealing profile 9 is a gasket . Preferably, the sealing profile 9 is a gasket co-molded or overmolded with the plate group .

[00134] Innovatively, the air filtration assembly and the engine air supply system of a vehicle comprising it described above largely ful fill the obj ect of the present invention by overcoming the typical problems of the prior art .

[00135] Advantageously, the air filtration assembly ensures simple and intuitive maintenance operations . Advantageously, the assembly and disassembly operations of the air filtration assembly, and in particular of the filtering cartridge , are guided and error-proof .

[00136] Advantageously, the filtering cartridge may be inserted into the box in a single direction of insertion, facilitating the conduct of the maintenance procedure .

[00137] Advantageously, the filtering cartridge , but in particular the plate group thereof , may be inserted in a guided manner, in particular in the support body, in such a way as to avoid damage or wear to the sealing profiles , minimi zing the friction thereof with the wall and unwanted creeping .

[00138] Advantageously, maintenance operations are guided and obviate the possibility that unwanted breakages may occur in their execution .

[00139] Advantageously, the positioning of the filtering cartridge ensures safe and precise positioning of the sealing profiles , and therefore a stable , reliable and resistant coupling to vibrations and shocks .

[00140] Advantageously, the presence of a protruding device allows for speci fic positioning of the filtering cartridge .

[00141] Advantageously, the sealing profile interacts with the protruding device in such a way as to ensure the air sealing also at said element .

[00142] Advantageously, the sealing profile interacts with the protruding device , certi fying the positioning of the filtering cartridge in the support body .

[00143] Advantageously, the protruding device ensures a seal only when properly engaged .

[00144] Advantageously, the duct in the protruding device acts as an additional veri fication element .

[00145] Advantageously, the filtering cartridge takes advantage of the layout flexibility of fered by the tubular septa to form an innovative guiding and positioning system . [00146] Advantageously, the air filtration assembly requires original and specially shaped filtering cartridges to function ef fectively .

[00147] Advantageously, the protruding device allows the space available between adj acent filtering septa to be utili zed to obj ecti fy the position of the filtering cartridge with respect to the filter body while ensuring the hermetic coupling of the cartridge to the filter body .

[00148] It is clear that a person skilled in the art may make changes to the invention in order to meet contingent needs , said changes all falling within the scope of protection as defined in the following claims . List of reference numbers : [00149]

1 air filtration assembly

2 housing

200 filtration chamber

20 support body

21 air inlet mouth

22 air outlet mouth

25 box-like body

201 body side wall

205 transverse body plane

250 protruding device 251 device side wall

252 device connection wall

255 transverse device plane

256 protuberance

257 through pipe

259 overhang

2590 overhang wall

6 filtering cartridge

7 tubular filtering septum

8 plate group

86 recess

87 through openings

800 peripheral edge

9 sealing profile

X-X body axis

X' -X' cartridge axis

H body sealing region h device sealing region a, p wall angle

HA1 , HA2 axial section

Claims

1. An air filtration assembly (1) , preferably of a vehicle, comprising: i) a support body (20) comprising an air passage mouth, preferably an air outlet mouth (22) , wherein the support body (20) extends along a body axis (X-X) and comprises body side walls (201) extending about said body axis (X- X) and a transverse body plane (205) , substantially transverse to the axis (X-X) , which extends substantially peripherally; ii) a filtering cartridge (6) extending along a cartridge axis (X'-X' ) comprising:

- at least two tubular filtering septa (7) crossable in parallel by the fluid being filtered;

- a plate group (8) with which said tubular filtering septa (7) are engaged, wherein said plate group (8) comprises a sealing profile (9) ; wherein said support body (20) comprises a protruding device (250) which protrudes from a body side wall (201) and is suitable for preventing the axial seal engagement of the plate group (8) with the transverse body plane (205) , wherein said protruding device (250) comprises a device side wall (251) , preferably substantially parallel to the respective body side wall (201) , positioned at a different axial elevation with respect to the transverse body plane (205) and at a different distance from the body axis (X-X) with respect to the body side wall (201) from which the protruding device (250) extends, wherein said protruding device (250) comprises two device connection walls (252) which connect the device side wall (251) to the respective body side wall (201) ; wherein the filtering cartridge (6) is configured to connect to the support body (20) so that the sealing profile (9) sealingly engages the body side walls (201) , the device side wall (251) , and the two device connection walls (252) .

2. Air filtration assembly (1) according to claim 1, wherein the protruding device (250) comprises an overhang (259) extending axially, preferably parallel to the device side wall (251) , comprising an overhang wall (2590) facing the device side wall (251) , wherein the sealing profile (9) is shaped to be housed at least partially in the gap between the device side wall (251) and the overhang wall (2590) .

3. Air filtration assembly (1) according to claim 2, wherein the sealing profile (9) sealingly engages both the device side wall (251) and the overhang wall (2590) .

4. Air filtration assembly (1) according to any one of the preceding claims, wherein the sealing profile (9) engages the body side wall (201) in a body sealing region (H) and wherein the sealing profile (9) engages the device side wall (251) in a device sealing region (h) , wherein said body sealing region (H) has a greater axial extension than the axial extension of the device sealing region (h) .

5. Air filtration assembly (1) according to any one of the preceding claims, wherein the sealing profile (9) engages the body side wall (201) in a body sealing region (H) and wherein the sealing profile (9) engages the device side wall (251) in a device sealing region (h) , wherein the body sealing region (H) and the device sealing region (h) are at different axial elevations.

6. Air filtration assembly (1) according to any one of the preceding claims, wherein the sealing profile (9) is suitable for sealingly engaging, along the engagement direction, i.e., in the axial direction, the transverse body plane (205) in the portions free from the protruding device (250) .

7. Air filtration assembly (1) according to any one of the preceding claims, wherein the protruding device (250) comprises a transverse device plane (255) positioned to be axially spaced from the transverse body plane (205) , preferably extending transversely from the device side wall (251) .

8. Air filtration assembly (1) according to claim 7, wherein the sealing profile (9) axially meets the transverse device plane (255) .

9. Air filtration assembly (1) according to claim 8, wherein the sealing profile (9) sealingly engages the transverse device plane (255) .

10. Air filtration assembly (1) according to claim 7 in combination with claim 6 or claim 9, wherein the protruding device (250) comprises a through pipe (257) extending from the transverse device plane (255) in the direction of the air passage mouth.

11. Ai r filtration assembly (1) according to any one of the preceding claims, wherein the protruding device (250) comprises at least one protuberance (256) , which preferably extends substantially parallel to the body axis (X-X) beyond the transverse body plane (205) , wherein the plate group (8) comprises a recess (86) , wherein said protuberance (256) is housed in the recess (86) with the filtering cartridge (6) coupled to the support body (20) .

12. Ai r filtration assembly (1) according to any one of the preceding claims, comprising a housing (2) comprising a support body (20) and a box-like body (25) , wherein the support body (20) and box-like body (25) are mutually engageable along the body axis (X-X) to define a filtration chamber (200) in which the filtering cartridge (6) is housed, wherein the housing (2) comprises an inlet air passage mouth and an outlet air passage mouth.

13. Ai r filtration assembly (1) according to any one of the preceding claims, wherein the housing side walls (201) and the transverse body plane (205) are positioned proximal to an end edge of the support body (20) , so that the at least two tubular filtering septa (7) are positioned on the opposite side with respect to the air passage mouth.

14. Ai r filtration assembly (1) according to the preceding claims, wherein the plate group (8) is in a single monolithic component made of elastomeric material, preferably closed-cell polyurethane foam.

15. Ai r filtration assembly (1) according to any one of the preceding claims, wherein the support body (20) comprises a plurality of protruding devices (250) .

16. Ai r filtration assembly (1) according to any one of the preceding claims, wherein the protruding device (250) is positioned in a region comprised between two adjacent tubular filtering septa (7) , with the filtering cartridge (6) in an assembled position.

17. An engine air supply system of a vehicle, comprising an air filtration assembly (1) according to any one of claims 1 to 16, wherein the support body (20) is fluidly connected to an air intake manifold, and the air is drawn from the external environment through the air filtration assembly ( 1 ) .

18. A passenger compartment air supply system of a vehicle, comprising an air filtration assembly (1) according to any one of claims 1 to 16, wherein the support body (20) is fluidly connected to an air intake manifold, and the air is drawn from the external environment through the air filtration assembly (1) .