IT202100030308A1 - FILTER ASSEMBLY - Google Patents

Description

DESCRIPTION

Field of application

[0001] The present invention concerns a fluid filter assembly.

[0002] According to a preferred embodiment the filter assembly? specifically suitable for carrying out air filtration operations.

[0003] The context in which the present invention is placed? that of filtering groups, preferably but not necessarily from the automotive sector. In the automotive sector, we refer to those filtering groups that can be connected via specific channels and specific manifolds to operating groups of a vehicle or to specific environments of the vehicle in such a way as to filter the fluid and prevent said operating groups or said environments from being reached by fluids containing unwanted particles. In other sectors of the technique, we refer to those filtering units that can be connected to specific ducts in which the fluid flows which, following filtration, reaches an environment or is fed to the cathode of a fuel cell.

[0004] Such filter units housed in a vehicle? required to present themselves suitable for carrying out effective and efficient filtration of the fluid, occupying as much space as possible. content as possible and avoiding constituting an obstacle to the flow of the fluid towards the operating unit or the desired environment.

[0005] In light of the above? It was noted that in order to present an effective and efficient filtration, the other needs of the technical sector were not met. Conversely, when the filter groups are created the most? compact as possible these have properties? filters with low effectiveness and low efficiency or act as an obstacle to the flow of the fluid.

Invention solution

[0006] The need to provide a filter assembly which is suitable for solving this problem is therefore strongly felt.

[0007] Purpose of the present invention? precisely that of providing a fluid filter assembly that has an effective and efficient capacity? filtering, exploiting the spaces in an extremely innovative way and not acting as an obstacle to the flow of the fluid. Preferably, therefore, by solving this purpose, the filter assembly which is the object of the present invention is particularly suitable for being housed in restricted installation spaces.

[0008] This purpose? achieved by the filter assembly claimed in claim 1.

[0009] The claims dependent on these show preferred embodiments involving further advantageous aspects.

Description of the drawings

[00010] Further characteristics and advantages of the invention will appear from the following description of its preferred embodiments, given by way of non-limiting indication, with reference to the attached figures in which:

[00011] ? Figures 1a, 1b, 1c and 1d show a schematization of a preferred embodiment of the filter assembly which is the object of the present invention in respectively a perspective view with separate parts from above, a perspective view with separate parts from below, a view frontal and a longitudinal sectional view;

[00012] ? Figures 2a, 2b, 2c and 2d show a schematization of a preferred embodiment of the filter assembly which is the object of the present invention in respectively a perspective view with separate parts from above, a perspective view with separate parts from below, a view frontal and a longitudinal sectional view;

[00013] ? Figures 3a, 3b, 3c and 3d show a schematization of a preferred embodiment of the filter assembly which is the object of the present invention in respectively a perspective view with separate parts from above, a perspective view with separate parts from below, a view frontal and a longitudinal sectional view;

[00014] ? figures 4a, 4b, 4c and 4d show a schematization of a preferred embodiment of the filter assembly which is the object of the present invention in respectively a perspective view with separate parts from above, a perspective view with separate parts from below, a view frontal and a longitudinal sectional view;

[00015] ? Figures 5a, 5b, 5c and 5d show a schematization of a preferred embodiment of the filter assembly object of the present invention in respectively a perspective view with separate parts from above, a perspective view with separate parts from below, a view frontal and a longitudinal sectional view;

[00016] ? Figures 6a, 6b, 6c and 6d show a schematization of a preferred embodiment of the filter assembly which is the object of the present invention in respectively a perspective view with separate parts from above, a perspective view with separate parts from below, a view frontal and a longitudinal sectional view;

[00017] ? figures 7a, 7b, 7c and 7d show a schematization of a preferred embodiment of the filter assembly which is the object of the present invention in respectively a perspective view with separate parts from above, a perspective view with separate parts from below, a view frontal and a longitudinal sectional view;

[00018] ? Figures 8a, 8b, 8c and 8d show a schematization of a preferred embodiment of the filter assembly which is the object of the present invention in respectively a perspective view with separate parts from above, a perspective view with separate parts from below, a view frontal and a longitudinal sectional view;

[00019] ? figures 9a and 9b show a schematization of a preferred embodiment of the filter assembly which is the object of the present invention in a perspective view with separate parts from above and a longitudinal section view respectively;

[00020] ? figures 10a and 10b show a schematization of a preferred embodiment of the filter assembly object of the present invention in a perspective view with separate parts from above and a longitudinal section view respectively;

[00021] ? figure 11 shows a schematization of a preferred embodiment of the filter assembly object of the present invention in a perspective view with separate parts from above;

[00022] ? figures 12a, 12b, 12c and 12d represent further schematized forms of the filter assembly which is the object of the present invention;

[00023] ? figures 13a, 13b, 13c, 13d, 13e and 13f illustrate further schematic embodiments of the filter assembly of the present invention;

[00024] ? figure 14 shows a detailed embodiment of a filter assembly object of the present invention, according to a preferred embodiment;

[00025] ? figure 15 represents a detail of a further embodiment of the filter assembly object of the present invention, according to a preferred embodiment;

[00026] ? figures 16a and 16b represent further embodiments and some related details of the filter assembly which is the subject of the present invention, according to a preferred embodiment;

[00027] ? figures 17a, 17b and 17c represent further embodiments and some related details of the filter assembly which is the subject of the present invention, according to a preferred embodiment;

[00028] ? figures 18a, 18b and 18c represent further embodiments and some related details of the filter assembly which is the subject of the present invention, according to a preferred embodiment;

[00029] ? figures 19a, 19b, 19c, 19d and 19e represent further embodiments and some related details of the filter assembly which is the object of the present invention, according to a preferred embodiment.

Detailed description

[00030] In the attached figures, with the reference number 1? indicated is a filter assembly in accordance with the present invention.

[00031] Said filter group 1? traversable during filtration by a fluid.

[00032] Preferably, called filter 1? passable by air filtration.

[00033] According to the present invention, the filter assembly 1 includes a filtration region R in which the filtration of the fluid takes place and therefore the separation of unwanted substances or particles from the fluid.

[00034] The filtration region R extends in length between an input area IN through which the fluid to be filtered flows and an output area OUT through which the filtered fluid flows.

[00035] As per the diagrams shown and as fully described below, the filter assembly 1 which is the object of the present invention? suitable to be extremely flexible in its design, construction and implementation, in such a way as to allow the mutual positioning of the IN input area and the OUT output area according to specific needs.

[00036] The filter assembly 1 extends along a longitudinal axis X-X, along a transversal axis Y-Y and along a vertical axis V-V.

[00037] According to a preferred embodiment, the longitudinal axis X-X extends in a linear direction.

[00038] According to a preferred embodiment, the longitudinal axis X-X extends in a curvilinear direction (as shown by way of example in figure 11, in figure 12a and in figure 13e).

[00039] According to a preferred embodiment, the longitudinal axis X-X extends in a broken direction (as shown by way of example in figure 12b and figure 12d).

[00040] In accordance with a preferred embodiment, the longitudinal axis X-X extends in a mixed manner, presenting linear sections and curvilinear sections (as shown by way of example in figure 12c).

[00041] According to a preferred embodiment, the transversal Y-Y axis is transverse to the longitudinal axis X-X. Preferably, the Y-Y transversal axis is orthogonal to the longitudinal axis X-X.

[00042] According to a preferred embodiment, the transversal Y-Y axis extends in a linear direction.

[00043] According to a preferred embodiment, the transversal Y-Y axis extends in a curvilinear direction (as shown by way of example in figures 13a, 13b, 13c, 13d, 13e and 13f).

[00044] According to a preferred embodiment, the transversal Y-Y axis extends in a broken direction.

[00045] In accordance with a preferred embodiment, the transversal Y-Y axis extends in a mixed manner, presenting linear sections and curvilinear sections.

[00046] According to a preferred embodiment, the vertical axis V-V extends starting from the longitudinal axis X-X, transversely thereto. Preferably, it extends transversally to the longitudinal axis X-X and transversally to the transversal axis Y-Y. Preferably, the vertical axis V-V is orthogonal to an imaginary plane in which both the longitudinal X-X axis and the transversal Y-Y axis lie.

[00047] According to a preferred embodiment, the vertical axis V-V extends in a linear direction.

[00048] According to a preferred embodiment, the vertical axis V-V extends in a curvilinear direction.

[00049] According to a preferred embodiment, the vertical V-V axis extends in a broken direction.

[00050] In accordance with a preferred embodiment, the vertical axis V-V extends in a mixed manner, presenting linear sections and curvilinear sections.

[00051] According to a series of preferred embodiments, the filter assembly 1 has a shape such as to develop in length along said longitudinal axis X-X and said transversal axis Y-Y, for example by positioning the input area IN and the output area OUT at two ends? opposite along the longitudinal axis X-X, or by positioning the IN input area at one end? longitudinal and the OUT exit area at one end? transversal.

[00052] According to a further preferred embodiment, the filter assembly 1 comprising a cavity? central C and the filtration region R extends around the cavity? central C. In other words, in this embodiment the filter assembly 1 has a substantially tubular shape, presenting a substantially cylindrical or conical or frusto-conical shape (as shown by way of example in figures 13a, 13b, 13c, 13d, 13e and 13f ).

[00053] In accordance with this preferred embodiment, in a first embodiment, the longitudinal axis V-V vertical axis extends in radial direction. Preferably, the IN input area and the OUT output area are positioned at two ends. axial along the longitudinal axis X-X: the filter group 1 operates as an "axial filter". In other words, in this embodiment, the IN input area and the OUT output area are positioned at two ends. longitudinally opposite, i.e. mutually spaced along the longitudinal axis X. This first embodiment? shown as an example in Figure 13a.

[00054] In accordance with the aforementioned preferred embodiment, in a second embodiment, the longitudinal axis The V-V vertical axis extends parallel along the tubular development of the filter assembly 1. Preferably, the IN input area and the OUT output area are positioned at two ends. radial along the longitudinal axis X-X, that is to say that at least one of the two areas corresponds with the cavity? central C: filter group 1 operates as a ?radial filter?. Preferably, the OUT output area corresponds with the cavity? central C, while the input area IN is radially spaced outside the tubular filter group 1: the filter group 1 operates as an external-internal radial filter. This second embodiment? shown as an example in figures 13b, 13c, 13d, 13e and 13f.

[00055] Preferably, according to the embodiment with "radial" filter traversable by the fluid from the outside to the inside, the cavity internal C delimits a fluid passage having a variable passage section.

[00056] Preferably, the cavity? internal C delimits a fluid passage with passage section increasing along the axis of the cavity itself. Preferably, called cavity? ? obtained by stacking filter panels 3 and deflector panels 4 of different annular shapes.

[00057] Advantageously, this solution allows to facilitate the circulation of fluid through the filter assembly 1 in the distal portions from the outlet area, in particular in the distal portions from the extremity. axial of the filter group 1 which faces the outlet area, improving the distribution of the filtration flow along the axis of the filter group 1.

[00058] In accordance with the present invention, the filter assembly 1 includes:

- a filter panel 3 which can be crossed by the fluid being filtered in a direction substantially orthogonal to its development;

- a deflector panel 4;

- an inlet chamber 5 defined between filter panel 3 and deflector panel 4.

[00059] In accordance with the present invention, the filter panel 3 extends with respect to an imaginary plane F that can be crossed by the fluid being filtered in a direction substantially orthogonal to the imaginary plane F.

[00060] According to the present invention, the deflector panel 4? made of fluid-permeable material.

[00061] According to a preferred embodiment, the filter panel 3 extends substantially planarly.

[00062] According to a preferred embodiment, on said imaginary plane F lie both the longitudinal axis function of the shape of the longitudinal X-X axis and the transversal Y-Y axis.

[00063] The filter panel 3? therefore passable during filtration by the fluid in its thickness. Preferably, the filter panel 3? traversable during filtration by the fluid in a direction substantially parallel to the vertical V-V axis.

[00064] According to a preferred embodiment of the present invention, the inlet chamber 5? open in a region proximal to the IN entrance area and ? closed in a region proximal to the OUT exit area.

[00065] Preferably, therefore, the inlet chamber 5 is open only and exclusively in a region proximal to the inlet area IN, while ? closed in a region proximal to the OUT exit area in such a way that the fluid is forced to pass through the filter panel 3.

[00066] According to a preferred embodiment of the solution which is the object of the present invention, the coupling between the filter panel 3 and the deflector panel 4 is such as to define an inlet chamber 5 shaped in such a way as to include a first inlet area I1 corresponding to a first section substantially orthogonal to the imaginary plane F in a region proximal to the inlet area IN and a second inlet area I2 corresponding to a second section substantially orthogonal to the imaginary plane F in a region distal to the input area IN.

[00067] Preferably, the first input area I1 ? greater than the second input area I2.

[00068] Preferably, the inlet chamber 5 has a decreasing passage section with a monotonous trend along its development.

[00069] In other words, the coupling between filter panel 3 and deflector panel 4 is such as to define an inlet chamber 5 having a larger passage section in proximity to of the IN entrance area and a smaller passage section in proximity? of the OUT output area.

[00070] As shown in the attached tables, and fully described below, there? ? obtained from particular shapes of the deflector panel 4, for example by including specific portions with a tapered shape or by including a greater number of components suitable for allowing the flow of the fluid in a region proximal to the input area IN compared to the number of components present in a region proximal to the OUT exit area.

[00071] This particular preferred embodiment? such as to allow better access of fluid into the inlet chamber 5 as well as? ? such as to make you work more? homogeneous as possible the filter panel 3.

[00072] In accordance with a preferred embodiment, the filter assembly 1 includes a pair of fluid-permeable deflector panels 4, positioned on the two opposite faces of the filter panel 3.

[00073] Preferably, the first deflector panel 4 and the filter panel 3 define said inlet chamber 5.

[00074] Preferably, the filter panel 3 and the second deflector panel 4 define an outlet chamber 6 which is open in a region proximal to the OUT exit area and is closed in a region proximal to the IN entrance area.

[00075] According to a preferred embodiment, the filter assembly 1 comprises a pair of filter panels 3, in which in the space between two filter panels? positioned the deflector panel 4 in such a way that between the first filter panel 3 and the deflector panel 4? defined said inlet chamber 5 and in such a way that between the second filter panel 3 and the deflector panel 4? defined an exit chamber 6.

[00076] Preferably, also in this embodiment, said exit chamber 6? open in a region proximal to the OUT exit area and is closed in a region proximal to the IN entrance area.

[00077] According to a preferred embodiment, the coupling between filter panel 3 and deflector panel 4 is such as to define an exit chamber 6 shaped in such a way as to include a first exit area O1 corresponding to a first section substantially orthogonal to the imaginary plane F in a region proximal to the input area IN and a second exit area O2 corresponding to a second section substantially orthogonal to the imaginary plane F in a region proximal to the exit area OUT.

[00078] Preferably, the first exit area O1 ? smaller than the second O2 outlet area.

[00079] Preferably, the exit chamber 6 has an increasing passage section with a monotonous trend along its development.

[00080] In other words, the coupling between filter panel 3 and deflector panel 4 is such as to define an exit chamber 6 having a smaller passage section in proximity to of the IN entrance area and a larger passage section in proximity? of the OUT output area.

[00081] As shown in the attached tables, and fully described below, there? ? obtained from particular shapes of the deflector panel 4, for example by including specific portions with a tapered shape or by including a greater number of components suitable for allowing the flow of the fluid in a region proximal to the OUT exit area compared to the number of components present in a region proximal to the IN entrance area.

[00082] This particular preferred embodiment? such as to improve the circulation of the filtered fluid exiting the filter panel 3, as well as? ? such as to make you work more? homogeneous as possible called filter panel 3.

[00083] In accordance with certain embodiments, the exit chamber 6? complementary to the entrance room 5.

[00084] In accordance with this preferred embodiment, in a complementary manner to the input channels 500 described below, the deflector panel 4 delimits specific, complementary, output channels 600.

[00085] According to a preferred embodiment, the input area IN and the output area OUT are spatially positioned depending on the shape or position of the deflector panel 4 which delimits the output chamber 6 (as exemplified schematically in the figures 10a and 10b).

[00086] In accordance with a preferred embodiment of the present invention, the filter assembly 1 comprises a plurality of of 3 filter panels and a plurality? of 4 deflector panels stacked parallel to the direction of the V-V vertical axis.

[00087] In accordance with a preferred embodiment, the filter assembly 1 comprises a plurality of of 3 filter panels and a plurality? of deflector panels 4 stacked parallel to the direction of the vertical axis V-V so as to form a plurality? of 5 entrance rooms and a plurality? of outlet chambers 6 crossed in parallel by the working fluid.

[00088] In accordance with a preferred embodiment, the filter assembly 1 comprises a plurality of of 3 filter panels and a plurality? of deflector panels 4 stacked parallel to the direction of the vertical axis V-V so as to form a plurality? of 5 entrance rooms comprising a plurality? of 500 input channels and a plurality? of exit chambers 6 comprising a plurality? of 600 output channels crossed in parallel by the working fluid.

[00089] According to a preferred embodiment, the input chambers 5 and the output chambers 6 have the same height.

[00090] According to a preferred embodiment, the filter assembly 1 comprises a plurality of of 5 entrance rooms and a plurality? of 6 exit chambers having different heights.

[00091] In accordance with a preferred embodiment, the filter assembly 1 comprises a plurality of of 3 filter panels and a plurality? of deflector panels 4 stacked parallel to the direction of the vertical axis V-V so as to form a plurality? of inlet chambers 5 and outlet chambers 6 arranged to form two filtering portions that the working fluid can pass through in series. In particular, each filter portion includes a plurality of of inlet chambers 5 and outlet chambers 6 crossed in parallel by the working fluid.

[00092] In other words, preferably, a plurality of of filtering panels 3 and deflector panels 4 in such a way as to identify a multiplicity? of 5 input chambers and 6 output chambers.

[00093] With ?panel? in this discussion we mean a component that develops mainly along two preferential directions.

[00094] In accordance with a preferred embodiment, the filter panel 3 and the deflector panel 4 have the same substantially square shape. In this case, the filter group 1 resulting from the stacking of a plurality? of filter panels 3 and deflector panels 4 has a cubic shape.

[00095] In accordance with a preferred embodiment, the filter panel 3 and the deflector panel 4 have the same substantially rectangular shape. In this case, the filter group 1 resulting from the stacking of a plurality? of filter panels 3 and deflector panels 4 has a parallelepiped shape.

[00096] In accordance with a preferred embodiment, the filter panel 3 and the deflector panel 4 have the same discoidal shape. In this case, the filter group 1 resulting from the stacking of a plurality? of filter panels 3 and deflector panels 4 has a cylindrical shape.

[00097] In accordance with a preferred embodiment, the filter panel 3? a sheet-like filter media of porous filter material.

[00098] According to a preferred embodiment, the filter panel 3? a non-woven fabric filter media.

[00099] Preferably, the filter panel 3? made with a non-woven fabric comprising polyester and/or polypropylene and/or polyamide and/or polyacrylate and/or viscose and/or rayon fibers and/or any combination thereof.

[000100] Preferably, the filter panel 3? a deep filter septum? made in the form of a flat sheet.

[000101] In accordance with a preferred embodiment, the filter panel 3? made of a non-woven fabric having a permeability? between 150 and 950mm/s, preferably between 550 and 700 mm/s (measured at 200 Pa).

[000102] Preferably, the filter panel 3? single layer.

[000103] Preferably, the filter panel 3? of the multilayer type.

[000104] Preferably, the filter panel 3 comprises a first filter layer in permeable nonwoven fabric, with permeability? between 750 and 900 mm/s (at 200 Pa), coupled to a second filtering layer in non-woven fabric with permeability? lower, between 150 and 200 mm/s (at 200 Pa).

[000105] In accordance with a preferred embodiment, the filter panel 3 includes a third filter layer positioned between the two external layers and having a permeability intermediate, between 250 and 300 mm/s (at 200 Pa).

[000106] In accordance with a preferred embodiment, the filter panel 3 contains adsorbent substances within itself, such as activated carbons and/or ion exchange resins and/or zeolites.

[000107] Preferably, the filter panel 3 includes a filter layer suitable for particle filtration and an adsorbent layer suitable for the adsorption of gaseous contaminants. Preferably, the filter layer ? positioned upstream of the adsorbent layer with respect to the direction of flow of the fluid. Preferably, the adsorbent layer comprises a plurality of of adsorbent substances such as activated carbon and ion exchange resins.

[000108] According to a preferred embodiment, the filter panel 3 includes a filter layer suitable for particle filtration and a plurality of filters. of adsorbent layers comprising respective adsorbent elements.

[000109] According to a preferred embodiment, the filter panel 3 has an ISO5011 filtering efficiency greater than 99% (ISO FINE).

[000110] According to a preferred embodiment, the filter panel 3 has a thickness between 0.5 and 3.5 millimeters (measured according to ASTM D5729 - 1997), preferably the filter panel 3 has a thickness between 1.5 millimeters and 2.8 millimeters.

[000111] According to a preferred embodiment, the deflector panel 4? a leaf-like element made of a permeable material.

[000112] Preferably, the deflector panel 4? such as to present a permeable structure, whether made for example with a fibrous material, a spongy material, a composite material or a sintered material.

[000113] According to a preferred embodiment, the deflector panel 4? a leaf-like element made of a permeable material belonging to the family of plastic materials.

[000114] According to a preferred embodiment, the deflector panel 4? a leaf-like element made of a fibrous permeable material.

[000115] According to a preferred embodiment, the deflector panel 4? a leaf-like element made of a permeable cellulose-based material.

[000116] According to a preferred embodiment, the deflector panel 4? in material comprising adsorbent substances, preferably comprising activated carbons and/or ion exchange resins and/or zeolites.

[000117] According to a preferred embodiment, the deflector panel 4? a sheet-like element made of a material comprising adsorbent substances, preferably comprising activated carbons and/or ion exchange resins and/or zeolites.

[000118] Preferably, the deflector panel 4 includes adsorbent substances at least on the surface facing the inlet chamber 5 of the filter group 1.

[000119] Preferably, the deflector panel 4 includes adsorbent substances on the surface facing the outlet chamber 6 of the filter assembly 1.

[000120] According to a preferred embodiment, the deflector panel 4 has a thickness of less than 1 millimeter, preferably between 0.1 and 0.5 millimeters, preferably the deflector panel has a thickness of 0.2 millimeters.

[000121] According to a preferred embodiment, the deflector panel 4? worked through thermoforming process.

[000122] According to a preferred embodiment, the deflector panel 4? worked by molding.

[000123] According to the present invention, the filter panel 3 has a filter efficiency class.

[000124] According to the present invention, the deflector panel 4 has a deflector efficiency class.

[000125] With ?efficiency class? means the class established by a respective regulation, depending on the purpose of the filter assembly and therefore also depending on the type of fluid to be filtered: preferably, examples of efficiency classes are described in the EN 1822 regulation (for HEPA filters).

[000126] According to a preferred embodiment, the filter panel 3 and the deflector panel 4 have an efficiency class equal to or higher than class E10, according to EN 1822.

[000127] According to a preferred embodiment, the filter panel 3 and the deflector panel 4 have an efficiency class equal to or higher than class H13, according to EN 1822.

[000128] According to a preferred embodiment, the filter panel 3? a HEPA type filter.

[000129] Preferably, a further example of legislation aimed at identifying the efficiency class of filters intended for the treatment of engine air? the ISO 5011 standard.

[000130] In this case, with ?efficiency class? we mean permeable elements that have the same filtration efficiency compared to a specific type of dust by conducting the test in accordance with the indications of the ISO 5011 standard.

[000131] For example, the filter panel 3 and deflector panel 4 belong to the same filtering efficiency class, both presenting filtration efficiency greater than 99% with ISOFINE powder.

[000132] For example, the filter panel 3 and deflector panel 4 belong to the same filtering efficiency class, both presenting filtration efficiency greater than 99.5% with ISOFINE powder.

[000133] In accordance with the present invention, the filter panel 3 has a permeability? filter.

[000134] In accordance with the present invention, the deflector panel 4 has a permeability? deflector.

[000135] In accordance with the present invention, the permeability? deflector ? different from permeability? filter.

[000136] As regards the permeability measurement, the permeability values? are measured in accordance with the EN ISO 9073 standard.

[000137] In accordance with the present invention, therefore, both the filter panel 3 and the deflector panel 4 can be crossed by the fluid. In particular, in accordance with the aforementioned characteristics, the filter panel 3 and the deflector panel 4 are made of different components and/or materials.

[000138] According to a preferred embodiment, the permeability? deflector ? lower than the permeability? filter.

[000139] That is to say that the fluid passes through the filter panel 3 with less resistance compared to the deflector panel 4. Preferably, therefore, the deflector panel 4 favors the outflow of the fluid towards the filter panel 3, at the same time for? turns out to be in turn permeable to the fluid and is therefore suitable for possibly carrying out a filtration action on it. Preferably, the fluid flows into the inlet chamber 5 and is forced to pass through the filter panel 3. Preferably, following occlusions or blockages of the filter panel 3 (or of the plurality of filter panels 3), the fluid that flows in the inlet chamber 5 (or in the inlet chambers 5 or in the plurality ? of 500 input channels) crosses and ? filtered by the baffle panel 4.

[000140] According to a preferred embodiment, the permeability? of the deflector panel 4 ? lower than the permeability? filter 3 and the baffle panel 4 comprise adsorbent substances, preferably activated carbon. The deflector panel 4 favors the filtration flow towards the filter panel 3 while the circulation of the fluid being filtered on at least one surface of the deflector panel 4 allows any gaseous contaminants transported by the fluid to be adsorbed.

[000141] In accordance with a preferred embodiment, the filter panel 3 includes an inlet filter edge 31 and an outlet filter edge 32.

[000142] Furthermore, the filter panel 3 includes lateral edges 34 that connect the inlet filter edge 31 and the outlet filter edge 32.

[000143] Preferably, input filter edge 31 ? proximal, preferably facing, the IN input area and the output filter edge 32? proximal, preferably facing, the OUT exit area.

[000144] Similarly, preferably, the deflector panel 4 includes an inlet deflector edge 41 and an exit deflector edge 42.

[000145] Furthermore, the deflector panel 4 includes deflector side surfaces 44.

[000146] Preferably, inlet deflector edge 41 ? proximal, preferably facing, the input area IN and the output deflector edge 42? proximal, preferably facing, the OUT exit area.

[000147] In accordance with a preferred embodiment, said exit deflector edge 42 sealingly engages the filter panel 3.

[000148] Preferably, the outlet panel edge 42 sealingly engages the outlet filter edge 32, closing the inlet chamber 5.

[000149] According to a preferred embodiment, the exit panel edge 42 comprises a portion of the exit edge 420 comprising a cavity? of housing 421 in which the output filter edge 32 is housed.

[000150] In particular, preferably, the output filter edge 32? stapled in the cavity? of housing 421.

[000151] Preferably, therefore, the trailing edge portion 420 closes and blocks the flow of the fluid passing through the thickness of the filter panel 3.

[000152] In accordance with other embodiments, the deflector panel 4 sealingly engages the filter panel 3, with the aim of defining the exit chamber 6, also through the inlet deflector edge 41.

[000153] In accordance with a preferred embodiment, as shown by way of example in figures 18a, 18b and 18c, the deflector panel 4 includes, in a region proximal to the OUT exit area, a portion shaped in such a way as to present the sealing commitment on the first filter panel 3 superimposed along the vertical axis to the sealing commitment on the second filter panel 3 thus carrying out the fluidic closure of the inlet chamber 5.

[000154] According to a preferred embodiment, the inlet deflector edge 41 engages the filter panel 3 with a portion of the inlet edge 410 comprising a cavity of inlet housing 411 in which the inlet filter edge 31 of said filter panel 3 is housed.

[000155] Preferably, similarly to the shaped portion described above, the deflector panel 4 includes, in a region proximal to the inlet area INT, a portion shaped in such a way as to present the sealing engagement on the first filter panel 3 aligned along the ?vertical axis to the sealed engagement on the second filter panel 3 thus carrying out? the fluidic closure of the outlet chamber 6, but allowing entry to the inlet chamber 5 (as shown by way of example in figures 17a, 17b and 17c).

[000156] According to a preferred embodiment, the input filter edge 31? stapled in the cavity? of input housing 411.

[000157] Preferably, therefore, the inlet edge portion 410 closes and blocks the flow of the fluid passing through the thickness of the filter panel 3.

[000158] In accordance with a preferred embodiment, the lateral deflector surfaces 44 sealingly engage the filter panel 3.

[000159] In accordance with a preferred embodiment, the lateral deflector surfaces 44 sealingly engage the lateral edges 34 of the filter panel 3.

[000160] Preferably, the inlet chamber 5? then closed on three sides at the correspondence of the lateral deflector surfaces 44 and at the deflector exit edge 42.

[000161] Preferably, the exit chamber 6? then closed on three sides at the correspondence of the lateral deflector surfaces 44 and at the entrance edge of the deflector 41.

[000162] According to a preferred embodiment, said deflector lateral surfaces 44 extend in height substantially parallel to the vertical axis V-V.

[000163] According to a preferred embodiment, each lateral deflector surface 44 includes a support foot 440 substantially parallel to the imaginary plane F, suitable for sealingly engaging the filter panel 3.

[000164] Preferably, the inlet deflector edge 41 and/or the outlet deflector edge 42 comprise respective support steps substantially parallel to the imaginary plane F suitable for sealingly engaging the filter panel 3.

[000165] In accordance with a preferred embodiment, the lateral deflector surfaces 44 include a protruding lateral portion 441 suitable for extending beyond the filter panel 3 on the side opposite to that in which the coupling between the deflector panel 4 and the filter panel 3 defines the inlet chamber 5. Preferably, the protruding lateral portion 441 of a deflector panel 4? suitable for engaging the next deflector panel 4 allowing it to be stacked in a vertical direction. Preferably, the protruding side portion 441 of a deflector panel 4? suitable for engaging the subsequent deflector panel 4 in such a way that the mutual engagement between two deflector panels 4 is sealed (as shown by way of example in figure 15.

[000166] According to a preferred embodiment, in the space between two filter panels 3? positioned the deflector panel 4 in such a way as to seal both the first filter panel 3 and the second filter panel 3 with the lateral deflector surfaces 44.

[000167] Preferably, the lateral deflector surface 44? shaped in such a way as to present the sealing engagement on the first filter panel 3 aligned along the vertical V-V axis with the sealing engagement on the second filtering panel 3. In other words, the lateral deflector surfaces 44 also have a preferred shape similar to the one illustrated with reference to the output regions of figures 18a, 18b and 18c.

[000168] According to a preferred embodiment, the deflector panel 4? shaped including a plurality? of alternating walls 40 suitable for defining a plurality in the entrance chamber 5? of 500 input channels.

[000169] Preferably, each inlet channel 500 includes an inlet mouth 501 proximal to the inlet area IN and a filtration region 502 facing the filter panel 3.

[000170] In this way the fluid is channeled at the input along each input channel 500, up to the filtration region 502 facing the filter panel 3.

[000171] According to a preferred embodiment, each alternate wall 40? connected to the next alternate wall in a tip portion 401 and is connected to the previous alternating wall in a bottom portion 402.

[000172] Preferably, said tip portions 401 and/or said bottom portions 402 are mutually connected to each other in an arcuate manner.

[000173] In some preferred embodiments, said tip portions 401 and/or said bottom portions 402 comprise specific support surfaces.

[000174] In accordance with a preferred embodiment, the respective bottom portions 402 of the deflector panel 4 rest on the filter panel 3.

[000175] Preferably, in general the respective bottom portions 402 of the deflector panel 4 rest on a filter panel 3.

[000176] In accordance with a preferred embodiment, the respective tip portions 401 are engaged by a filter panel 3.

[000177] Preferably, therefore, the deflector panel 4 also acts as a reinforcing and support element for the filter panels 3.

[000178] According to a preferred embodiment, the input channels 500 delimited by the deflector panel 4 have an end? open entrance door facing the IN entrance area and one end exit closed nearby of the OUT output area. Said ends? outlets are closed by means of appropriate closing elements, such as for example portions of adhesive used to couple a deflector panel 4 to a filter panel 3.

[000179] According to a preferred embodiment, the output channels 600 delimited by the deflector panel 4 have an end entrance closed near of the IN input area and one end? open exit facing the OUT exit area. Said ends? of the inlet are closed by means of appropriate closing elements, such as for example portions of adhesive used to couple a deflector panel 4 to a filter panel 3.

[000180] According to a preferred embodiment, the input channels 500 delimited by the deflector panel 4 have different lengths from each other, including primary input channels 500 which extend from the input area IN up to a region proximal to the area output OUT.

[000181] According to a preferred embodiment, the input channels 500 delimited by the deflector panel 4 comprise auxiliary input channels 500 which extend from the IN input area to a region distal from the OUT output area.

[000182] According to a preferred embodiment, the deflector panel 4 includes primary input channels 500 and auxiliary input channels 500.

[000183] According to a preferred embodiment, the input channels 500 delimited by the deflector panel 4 have a variable pitch along the transversal Y-Y axis (as for example exemplified in figure 12a.

[000184] Preferably, the pitch of the input channels 500? function of the very nature of the aforementioned channels.

[000185] Preferably, for example, the pitch of the input channels 500 ? function of the length of the input channels 500 by presenting deflector panel portions with a greater number of channels in the region in which input channels 500 of shorter length are present compared to deflector panel portions where primary input channels 500 of greater length are present.

[000186] According to a preferred embodiment, the deflector panel 4 transversely alternates primary input channels and auxiliary input channels (as shown by way of example in figure 13f).

[000187] This preferred embodiment is? particularly exploited on embodiments, with filter panels 3 presenting a development with respect to longitudinal axes X-X or with respect to transversal axes Y-Y of a non-linear type, for example curvilinear.

[000188] In a completely analogous but complementary way, the same considerations described for the input channels 500 are present for the output channels 600 defined by the deflector panel 4: for example where the input channels 500 have a trend that gets smaller as they decrease of section, the 600 output channels expand by expanding their section; for example where primary input channels are located, they correspond to auxiliary output channels, and vice versa, where auxiliary input channels are located they correspond to primary output channels.

[000189] According to a preferred embodiment, the input channels 500 have a constant section different from the constant section of the output channels 600.

[000190] Preferably, the passage section of each input channel 500? greater than the passage section of each output channel 600.

[000191] Preferably, in this embodiment, ? the distribution of the fluid flowing towards the filter panel 3 has been improved and the dust accumulation effect of each filter panel 3 of the filter group 1 has been maximized, also reducing pressure drops.

[000192] According to the preferred embodiment with filter assembly 1 of cylindrical shape and radial flow, the filter panel 3 has the shape of a disc.

[000193] According to this embodiment, the deflector panel 4 has the shape of a disk.

[000194] Preferably, the filter panel 3 and the deflector panel 4 are mutually engaged, defining an annular-shaped inlet chamber 5.

[000195] Preferably, the filter panel 3 and the deflector panel 4 are mutually engaged to define an annular-shaped outlet chamber 6.

[000196] Preferably, the deflector panel 4 has channels oriented in a radial direction. Preferably, the deflector panel 4 defines inlet channels 500 oriented in a radial direction.

Preferably, the baffle panel 4 defines output channels 600 oriented in the radial direction (as shown in Figures 13b to 13f).

[000197] In accordance with an alternative embodiment, the deflector panel 4 defines passage channels with spiral geometry in the inlet chamber 5 and/or in the outlet chamber 6 (as shown in figure 13e).

[000198] In accordance with a preferred embodiment, the alternate walls 40 have an incidental trend, in such a way as to delimit input channels 500 with a tapered shape.

[000199] In accordance with a preferred embodiment, the alternating walls 40 have an incidental trend, in such a way as to delimit tapered exit channels.

[000200] According to a preferred embodiment, the deflector panel 4 or the alternate walls 40 comprise deflector elements 409, so as to delimit tapered inlet channels 500.

[000201] Preferably, the deflector elements 409 are suitable to act as a chute for the fluid towards the filter panel 3.

[000202] In accordance with an even further embodiment, the filter assembly 1 includes a container body 2 suitable for containing the filtration region R, containing at least one filter panel 3 and at least one deflector panel 4.

[000203] Substantially the container body has a shape such as to identify the input area IN and the output area OUT and fluidly connect them through the filtration region R, inside which the filter panels 3 and the deflector panels 4 are housed .

[000204] Furthermore, according to a preferred embodiment, the container body 2 includes a perimeter gasket 20 which extends around the at least one filter panel 3 and the at least one deflector panel 4, in such a way as to define the IN input.

[000205] In accordance with the schematizations in the annex, and according to the relative needs? specific to the designer, for example depending on the spaces present in the vehicle, some characteristics described and shown in a preferred embodiment are also present in other embodiments.

[000206] Preferably, in the schematic figures from figure 1 to figure 13f, the deflector panels 4 are shown substantially planar, but depending on the needs? they present the described wavy shape in such a way as to be suitable for defining the respective input channels 500 and the respective output channels 600 described above as shown in figures 14 to 19e.

[000207] Innovatively, the filter assembly largely fulfills the purpose of the present invention, overcoming the typical problems of the prior art.

[000208] Advantageously, in fact, the filter assembly? suitable for filtering the fluid in an extremely effective and efficient manner, not acting as an obstacle to the flow of the fluid, but rather favoring its motion in a substantially main direction of connection between the inlet area and the outlet area.

[000209] In fact, advantageously, the filter assembly has a large inlet surface and a large outlet surface, but at the same time has large filtering surfaces.

[000210] Advantageously, the deflector panel favors the flow of incoming fluid and favors the outflow of the outgoing fluid. Advantageously, the deflector panel being permeable minimizes the pressure drops imposed on the system in which the filter assembly is installed.

[000211] Advantageously, the deflector panel distributes the flow rate of fluid that hits the filter panel, improving the exploitation of the available filter surface.

[000212] Advantageously, the deflector panel gives solidity? to the filter assembly.

[000213] Advantageously, the deflector panel includes an inlet edge which engages the filter panel, improving the fluid dynamics of the filter assembly, in particular reducing the pressure losses at the mouth of the inlet chamber.

[000214] Advantageously, the deflector panel includes an exit edge which engages the filter panel, improving the fluid dynamics of the filter assembly, in particular reducing the pressure losses at the outlet of the exit chamber.

[000215] Advantageously, the deflector panel includes edge portions that engage the filter panel, simplifying the separation between each inlet chamber and each outlet chamber.

[000216] Advantageously, the filter assembly is modular and ? simply adaptable to needs? design by exploiting all the aforementioned advantages.

[000217] Advantageously, the filter assembly allows the available filtering surface to be easily modulated by selecting the number of filtering panels, deflector panels and/or acting on their dimensions, such as for example their length.

[000218] Advantageously, at a design level, ? the behavior of the filter panel can be easily and faithfully determined so? to produce effective and efficient filter units. Advantageously, performance losses of the filter panel typically due to bending/deformation operations are avoided. In this solution, in fact, the filter panel is used in the form of a flat sheet similar to the experimental conditions in which it is tested and developed.

[000219] Advantageously, the filter panels do not require multiple production operations, such as for example the filter panels comprising pleated paper filters.

[000220] Advantageously, the production costs of the filter panels and the filter assembly are extremely low.

[000221] Advantageously, the filter panels have a porous and permeable structure, thus managing to accumulate the contaminant in their thickness.

[000222] Advantageously, the passage channels are formed on the deflector panel keeping the structure of the filter panel simple on which no folding and/or deformation operations need to be performed.

[000223] Advantageously, since they do not have to undergo folding operations, the filter panels have a permeable, voluminous and relatively thick filtering structure that can be exploited for the accumulation of contaminants in the thickness of the filter panel.

[000224] Advantageously, since they do not have to undergo folding operations, the filter panels can have a multilayer structure, for example including at least one filter layer and at least one adsorbent layer, thus allowing to obtain with relative simplicity a multifunctional filter structure, avoiding folding processes.

[000225] Advantageously, in the embodiment in which the filter panel is made of synthetic fibres, preferably polypropylene, hydrophobic, ? increased the resistance of the filter assembly to the treatment of humid air and/or containing drops.

[000226] Advantageously, the deflector panel has the primary purpose of defining, with its positioning and coupling with the filtering panel, the input chamber, and possibly the output chamber, but at the same time? also suitable for carrying out the filtering action.

[000227] Advantageously, the fluid is filterable both by the filter panel and by the deflector panel.

[000228] Advantageously, a clogging of the filter panel? managed effectively by continuing the filtration action through the baffle panel.

[000229] Advantageously, the presence of adsorbent substances on the deflector panel allows maximizing the exploitation of the available spaces to guarantee the quantity of of adsorbent substance useful to guarantee a capacity? of desired adsorption by the filter assembly.

[000230] Advantageously, the filter panel and the baffle panel are made of different permeable materials. Advantageously, for the creation of the deflector panel? You can select materials that are economical compared to filter panel material or fluid-impermeable baffle material, reducing the costs associated with filter assembly manufacturing.

[000231] Advantageously, the properties? of particle filtration and gas adsorption are assigned respectively to the filter panel and the baffle panel, being workable according to respective production processes and easily stackable and mutually coupled to define the structure of the filter group described.

[000232] It is clear that a technician in the sector, in order to satisfy contingent needs, could make modifications to the invention all contained within the scope of protection as defined by the following claims.

List of reference numbers:

[000233]

1 filter assembly

2 container body

20 perimeter seal

3 filter panel

31 input filter board

32 output filter board

34 filter side edge

4 baffle panel

40 alternating walls

401 peak servings

402 background portions

41 inlet deflector edge

410 entrance edge portion

411 cavities? of input housing

42 exit deflector edge

420 trailing edge portion

421 cavities? of output housing

44 deflector side surfaces 440 support foot

441 protruding lateral portion 49 deflector element

5 entrance room

500 input channels

501 inlet

502 filtration region

6 exit chamber

600 output channels

X-X longitudinal axis

Y-Y transverse axis

V-V vertical axis

IN entrance area

OUT exit area

R filtration region

F imaginary plane

A1 first entrance area

A2 second entrance area

O1 first exit area

O2 second exit area

Is there a cavity? central

Claims (17)

1. A filter assembly (1) passable during filtration by a fluid, preferably by air, wherein the filter assembly (1) comprises a filtration region (R) which extends between an inlet area (IN) through the which fluid to filter flows, and an outlet area (OUT) through which the filtered fluid flows, in which the filter assembly (1) extends along a longitudinal axis (X-X), along a transversal axis (Y-Y) and , in height, along a vertical axis (V-V); whose filter assembly (1) includes: - a filter panel (3) which extends with respect to an imaginary plane (F) on which both the longitudinal axis (X-X) and the transversal axis (Y-Y) lie, in which said filter panel (3) is traversable by the fluid being filtered in a direction substantially orthogonal to the imaginary plane (F), substantially parallel to the vertical axis (V-V), in which the filter panel (3) has a filter efficiency class and a permeability? filter; - a deflector panel (4) made of a fluid-permeable material, wherein the deflector panel (4) has a deflector efficiency class and a permeability? deflector; - an inlet chamber (5) defined between filter panel (3) and deflector panel (4), in which the inlet chamber (5) is open in a region proximal to the entrance area (IN) and is closed in a region proximal to the exit area (OUT); in which the filter efficiency class and the deflector efficiency class belong to the same reference class; in which the permeability? deflector ? different from permeability? filter. 2. Filter assembly (1) according to claim 1, in which the permeability? deflector ? lower than the permeability? filter. 3. Filter assembly (1) according to any of the previous claims, wherein the baffle panel (4) comprises at least one adsorbent substance, preferably comprising activated carbons and/or ion exchange resins. 4. Filter assembly (1) in accordance with any of the preceding claims, comprising a pair of fluid-permeable baffle panels (4), positioned at the two opposite faces of the filter panel (3), wherein the first baffle panel (4) and the filter panel (3) define said inlet chamber (5), wherein the filter panel (3) and the second deflector panel (4) define an outlet chamber (6) which is open in a region proximal to the exit area (OUT) and is closed in a region proximal to the entrance area (IN). 5. Filter assembly (1) according to any of the previous claims, comprising a pair of filter panels (3), wherein in the space between two filter panels? positioned the deflector panel (4) in such a way that between the first filter panel (3) and the deflector panel (4) ? defined said inlet chamber (5) and in such a way that between the second filter panel (3) and the deflector panel (4)? defined an exit chamber (6), where the exit chamber (6) is open in a region proximal to the exit area (OUT) and is closed in a region proximal to the entrance area (IN). 6. Filter assembly (1) according to claim 4 or claim 5, wherein the inlet area (IN) and the outlet area (OUT) are spatially positioned depending on the shape or position of the baffle panel (4) which delimits the exit chamber (6). 7. Filter assembly (1) according to any of the previous claims, comprising a cavity? central (C) and the filtration region (R) extends around the cavity? central (C) in such a way that the exit area (OUT) corresponds with said cavity? central (C) and that the entrance area (IN) is radially distant from said exit area (OUT). 8. Filter assembly (1) according to any of the preceding claims, wherein the baffle panel (4) is shaped including a plurality? of alternating walls (40) suitable to define a plurality in the entrance chamber (5) of inlet channels (500), wherein each inlet channel (500) includes an inlet mouth (501) proximal to the inlet area (IN) and a filtration region (502) facing the filter panel (3) . 9. Filter assembly (1) according to claim 8, wherein each alternate wall (40) is connected to the next alternate wall in a tip portion (401) and is? connected to the previous alternating wall in a bottom portion (402). 10. Filter assembly (1) in accordance with claim 9, wherein the respective bottom portions (402) of the deflector panel (4) rest on the filter panel (3). 11. Filter assembly (1) according to any one of claims 9 and 10 and any one of claims 4 or 5, wherein the respective tip portions (401) are engaged by a filter panel (3). 12. Filter assembly (1) according to any one of claims 8 to 11, wherein the input channels (500) delimited by the deflector panel (4) have different lengths from each other including primary input channels (500) which extend from the input area (IN) to a region proximal to the output area (OUT) and auxiliary input channels (500) which extend from the input area (IN) to a distal region from the exit area (OUT) 13. Filter assembly (1) according to any one of claims 8 to 12, wherein the inlet channels (500) delimited by the deflector panel (4) have variable pitch along the transversal axis (Y-Y). 14. Filter assembly (1) in accordance with any one of claims 8 to 13, in which the alternating walls (40) have an incidental trend, in such a way as to delimit inlet channels (500) with a tapered shape. 15. Filter assembly (1) according to any of the previous claims, comprising a plurality? of filter panels (3) and comprising a plurality? of deflector panels (4) stacked parallel to the direction of the vertical axis (V-V). 16. Filter assembly (1) according to any of the previous claims, wherein the filter panel (3) is a sheet-like filter media of single-layer or multi-layer porous filter material. 17. Filter assembly (1) according to claim 16, wherein the filter panel (3) comprises adsorbent substances, preferably activated carbons and/or ion exchange resins.