CN115463488A - Filter group - Google Patents

Filter group Download PDF

Info

Publication number
CN115463488A
CN115463488A CN202110654044.6A CN202110654044A CN115463488A CN 115463488 A CN115463488 A CN 115463488A CN 202110654044 A CN202110654044 A CN 202110654044A CN 115463488 A CN115463488 A CN 115463488A
Authority
CN
China
Prior art keywords
filter
inlet
baffle
zone
outlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110654044.6A
Other languages
Chinese (zh)
Inventor
乔基奥·基隆迪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UFI Filters SpA
Original Assignee
UFI Filters SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by UFI Filters SpA filed Critical UFI Filters SpA
Priority to CN202110654044.6A priority Critical patent/CN115463488A/en
Publication of CN115463488A publication Critical patent/CN115463488A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
    • B01D46/525—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material which comprises flutes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00—Other air-treating devices
    • B60H3/06—Filtering
    • B60H3/0608—Filter arrangements in the air stream
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F02M35/02441—Materials or structure of filter elements, e.g. foams
    • F02M35/0245—Pleated, folded, corrugated filter elements, e.g. made of paper
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F02M35/02441—Materials or structure of filter elements, e.g. foams
    • F02M35/02458—Materials or structure of filter elements, e.g. foams consisting of multiple layers, e.g. coarse and fine filters; Coatings; Impregnations; Wet or moistened filter elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F02M35/02475—Air cleaners using filters, e.g. moistened characterised by the shape of the filter element
    • F02M35/02491—Flat filter elements, e.g. rectangular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/04—Air cleaners specially arranged with respect to engine, to intake system or specially adapted to vehicle; Mounting thereon ; Combinations with other devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B01D2253/108—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/20—Organic adsorbents
    • B01D2253/206—Ion exchange resins

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The invention relates to a filter group (1) comprising a filtering area (R) extending between an inlet zone (IN) through which a fluid to be filtered flows and an outlet zone (OUT) through which the filtered fluid flows. The filter group (1) extends along a longitudinal axis (X-X), along a transversal axis (Y-Y) and in height along a vertical axis (V-V). Furthermore, the filter group (1) comprises: -a filter plate (3) extending with respect to an imaginary plane (F) and capable of being crossed by a filtered fluid in a direction substantially orthogonal to said imaginary plane (F); -a baffle (4) which is fluid impermeable; -an inlet chamber (5) defined between the filter plate (3) and the baffle (4), wherein the inlet chamber (5) is open IN a region adjacent to the inlet zone (IN) and closed IN a region adjacent to the outlet zone (OUT).

Description

Filter group
Technical Field
The present invention relates to a filter group for fluids.
According to a preferred embodiment, the filter group is particularly suitable for performing air filtering operations.
The invention belongs to the technical field of filter groups in the field of automobiles. In particular, the present invention relates to a filtering group that can be connected to an operating group of a vehicle or to a specific space of a vehicle through specific channels and specific manifolds, in order to filter the fluid and prevent the fluid containing undesired particles from reaching said operating group or said space.
Background
Such a filtering group housed in a vehicle needs to be adapted to perform an effective and efficient fluid filtering, occupy as little space as possible and avoid obstructing the outflow of fluid towards the operating group or the required space.
In view of the above, it has been noted that other needs in the art are not met in order to have effective and efficient filtration. In contrast, when filtration packs are formed as compactly as possible, they have low-efficiency and low-efficiency filtration characteristics, or they are an obstacle to fluid outflow.
Disclosure of Invention
The need is therefore deeply felt to provide a filter group suitable to solve such problems.
More precisely, the object of the present invention is to provide a filter group for fluids having an effective and efficient filtering capacity, making use of space in a highly innovative manner and not acting as an obstacle to the outflow of the fluid. Thus, by solving such an object, the filter group of the invention is preferably particularly suitable for application in the automotive field, being adapted to be able to be accommodated in the narrow spaces provided on vehicles.
Such object is achieved by a filter group as claimed in claim 1.
The claims dependent on the above claims present preferred variants implying other advantageous aspects.
Drawings
Further features and advantages of the invention will become apparent from the description of preferred exemplary embodiments thereof, given by way of non-limiting example, which is provided hereinafter with reference to the accompanying drawings, in which:
figures 1a, 1b, 1c and 1d show, respectively in a top perspective view with separated parts, a bottom perspective view with separated parts, a front view and a longitudinal section view, a diagram of a preferred embodiment of the filter group of the invention;
figures 2a, 2b, 2c and 2d show, respectively in a top perspective view with separated parts, a bottom perspective view with separated parts, a front view and a longitudinal section view, a diagram of a preferred embodiment of the filter group of the invention;
figures 3a, 3b, 3c and 3d show, respectively in a top perspective view with separate parts, a bottom perspective view with separate parts, a front view and a longitudinal section view, a diagram of a preferred embodiment of a filter group of the invention;
figures 4a, 4b, 4c and 4d show, respectively in a top perspective view with separated parts, a bottom perspective view with separated parts, a front view and a longitudinal section view, a diagram of a preferred embodiment of the filter group of the invention;
figures 5a, 5b, 5c and 5d show, respectively in a top perspective view with separated parts, a bottom perspective view with separated parts, a front view and a longitudinal section view, a diagram of a preferred embodiment of the filter group of the invention;
figures 6a, 6b, 6c and 6d show, respectively in a top perspective view with separated parts, a bottom perspective view with separated parts, a front view and a longitudinal section view, a diagram of a preferred embodiment of the filter group of the invention;
figures 7a, 7b, 7c and 7d show, respectively in a top perspective view with separated parts, a bottom perspective view with separated parts, a front view and a longitudinal section view, a diagram of a preferred embodiment of the filter group of the invention;
figures 8a, 8b, 8c and 8d show, respectively in a top perspective view with separated parts, a bottom perspective view with separated parts, a front view and a longitudinal section view, a diagram of a preferred embodiment of the filter group of the invention;
figures 9a and 9b show a diagram of a preferred embodiment of the filter group of the invention, in a top perspective view and a longitudinal section with separate parts, respectively;
figures 10a and 10b show a diagram of a preferred embodiment of the filter group of the invention, in a top perspective view and a longitudinal section with separate parts, respectively;
figure 11 shows a diagram of a preferred embodiment of the filter group of the invention in a top perspective view with the parts separated;
12a, 12b, 12c and 12d show further exemplary embodiments of the filter group of the present invention;
figures 13a, 13b, 13c, 13d, 13e and 13f show further schematic embodiments of the filter group of the invention;
figure 14 shows a detailed embodiment of the filter group of the invention according to a preferred embodiment;
figure 15 shows a detail of another embodiment of the filter group of the invention according to a preferred embodiment;
figures 16a and 16b show a further embodiment of the filter group of the invention according to a preferred embodiment and some relevant details;
17a, 17b and 17c show a further embodiment of the filter group of the invention according to a preferred embodiment and some relevant details;
figures 18a, 18b and 18c show a further embodiment of the filter group of the invention according to a preferred embodiment and some relevant details;
figures 19a, 19b, 19c, 19d and 19e show a further embodiment of the filter group of the invention according to a preferred embodiment and some relevant details.
Detailed Description
In the figures, reference numeral 1 denotes a filter group according to the invention.
The filter group 1 is traversable by a fluid during filtration.
Preferably, the filter 1 is permeable to air during filtration.
According to the invention, the filter group 1 comprises a filtering zone R in which the filtering of the fluid takes place and therefore the separation of undesired substances or particles from the fluid takes place.
The filtering region R extends IN length between an inlet zone IN through which the fluid to be filtered flows and an outlet zone OUT through which the filtered fluid flows.
As shown IN the accompanying drawings and as described more fully below, the filter group 1 of the invention is adapted to have a high degree of flexibility IN its design, construction and manufacture, so as to allow the inlet zone IN and the outlet zone OUT to be mutually positioned according to specific needs.
The filter group 1 extends along a longitudinal axis X-X, along a transversal axis Y-Y and along a vertical axis V-V.
According to a preferred embodiment, the longitudinal axis X-X extends in a rectilinear direction.
According to a preferred embodiment, the longitudinal axis X-X extends in a curvilinear direction (as shown for example in fig. 11, 12a and 13 e).
According to a preferred embodiment, the longitudinal axis X-X extends in the direction of a fold line (as shown for example in fig. 12b and 12 d).
According to a preferred embodiment, the longitudinal axis X-X extends in a mixed manner, having a straight section and a curved section (as shown by way of example in fig. 12 c).
According to a preferred embodiment, the transverse axis Y-Y is transverse to the longitudinal axis X-X. Preferably, the transverse axis Y-Y is orthogonal to the longitudinal axis X-X.
According to a preferred embodiment, the transverse axis Y-Y extends in a rectilinear direction.
According to a preferred embodiment, the transverse axis Y-Y extends in a curvilinear direction (as shown by way of example in fig. 13a, 13b, 13c, 13d, 13e and 13 f).
According to a preferred embodiment, the transverse axis Y-Y extends in the direction of the fold line.
According to a preferred embodiment, the transverse axis Y-Y extends in a mixed manner, having a straight section and a curved section.
According to a preferred embodiment, the vertical axis V-V extends from the longitudinal axis X-X transversely to the longitudinal axis X-X. Preferably, the vertical axis V-V extends transversely to the longitudinal axis X-X and transversely to the transverse axis Y-Y. Preferably, the vertical axis V-V is orthogonal to an imaginary plane in which both the longitudinal axis X-X and the transverse axis Y-Y lie.
According to a preferred embodiment, the vertical axis V-V extends in a rectilinear direction.
According to a preferred embodiment, the vertical axis V-V extends in a curvilinear direction.
According to a preferred embodiment, the vertical axis V-V extends in the direction of the fold line.
According to a preferred embodiment, the vertical axis V-V extends in a mixed manner, having a straight section and a curved section.
According to a series of preferred embodiments, the filter group 1 has a shape that extends lengthwise along said longitudinal axis X-X and along said transversal axis Y-Y, for example by arranging the inlet zone IN and the outlet zone OUT at two opposite ends along the longitudinal axis X-X, or by arranging the inlet zone IN at a longitudinal end and the outlet zone OUT at a transversal end.
According to another preferred embodiment, the filter group 1 comprises a central chamber C and the filtering area R extends around the central chamber C. In other words, in such an embodiment, the filter group 1 has a substantially tubular shape, with a substantially cylindrical or conical or frustoconical shape (as shown by way of example in fig. 13a, 13b, 13c, 13d, 13e and 13 f).
According to such preferred embodiment, in the first embodiment, the longitudinal axis X-X extends parallel to the tubular extension of the filter group 1, while the transverse axis Y-Y extends in a substantially circumferential direction and the vertical axis V-V extends in a radial direction. Preferably, the inlet zone IN and the outlet zone OUT are located at both axial ends along the longitudinal axis X-X: the filter group 1 operates as an "axial filter". IN other words, IN this embodiment, the inlet zone IN and the outlet zone OUT are located at two longitudinally opposite ends, i.e. spaced from each other along the longitudinal axis X-X. Such a first embodiment is shown as an example in fig. 13 a.
According to the preferred embodiment described above, in the second embodiment the longitudinal axis X-X extends substantially radially with respect to the tubular extension of the filter group 1, while the transverse axis Y-Y extends in a substantially circumferential direction, and the vertical axis V-V extends parallel along the tubular extension of the filter group 1. Preferably, the inlet zone IN and the outlet zone OUT are located at both radial ends along the longitudinal axis X-X, i.e. at least one of the two zones corresponds to the central cavity C: the filter group 1 operates as a "radial filter". Preferably, the outlet zone OUT corresponds to the central chamber C, while the inlet zone IN is radially spaced outside the tubular filter group 1: the filter group 1 operates as an outside-inside radial filter. Such a second embodiment is shown by way of example in fig. 13b, 13c, 13d, 13e and 13 f.
According to the invention, the filter group 1 comprises:
a filter plate 3 that can be crossed by the fluid during filtration in a direction substantially orthogonal to its extension;
a baffle 4, which is fluid impermeable;
an inlet chamber 5 defined between the filter plate 3 and the baffle 4.
According to the invention, the filter plate 3 extends relative to an imaginary plane F, which can be traversed by the fluid during filtering in a direction substantially orthogonal to the imaginary plane F.
According to a preferred embodiment, the filter plate 3 extends in a substantially planar manner.
According to a preferred embodiment, the longitudinal axis X-X and the transverse axis Y-Y are both located on said imaginary plane F, so that the shape of the imaginary plane F (i.e. rectilinear or curved or serrated) depends on the shape of the longitudinal axis X-X and the transverse axis Y-Y.
Thus, the filter plate 3 can be penetrated through its thickness by the fluid during filtration. Preferably, the filter plate 3 is traversable by the fluid in a direction substantially parallel to the vertical axis V-V during filtration.
According to a preferred embodiment of the invention, the inlet chamber 5 is open IN the region adjacent to the inlet zone IN and closed IN the region adjacent to the outlet zone OUT.
Preferably, the inlet chamber 5 is thus only and exclusively open IN the region adjacent to the inlet zone IN and closed IN the region adjacent to the outlet zone OUT, thereby forcing the fluid through the filter plate 3.
According to a preferred embodiment of the solution of the invention, the filter plate 3 is associated with the baffle 4 to define an inlet chamber 5, the inlet chamber 5 being shaped so as to comprise a first inlet zone I1 and a second inlet zone I2, the first inlet zone I1 being a zone adjacent to the inlet zone IN and having a corresponding first cross section substantially orthogonal to the imaginary plane F, the second inlet zone I2 being a zone distant from the inlet zone IN with respect to the first inlet zone I1 and having a corresponding second cross section substantially orthogonal to the imaginary plane F.
Preferably, the first cross section of the first inlet zone I1 is greater than the second cross section of the second inlet zone I2.
IN other words, the filter plate 3 is associated with the baffle 4 to define an inlet chamber 5 having a larger passage section near the inlet zone IN and a smaller passage section near the outlet zone OUT.
As shown IN the figures and described IN detail below, this is achieved by the particular shape of the baffle 4, for example, the baffle 4 comprises a particular portion having a tapered path, or comprises a greater number of components allowing the flow of fluid IN the region adjacent to the inlet zone IN with respect to the number of components present IN the region adjacent to the outlet zone OUT.
This particularly preferred embodiment allows a better access of the fluid to the inlet chamber and makes the filter plate 3 work as uniformly as possible.
According to a preferred embodiment, the filter group 1 comprises pairs of baffles 4 located on two opposite faces of the filter plates 3, the baffles 4 being fluid impermeable.
Preferably, the first baffle 4 and the filter plate 3 define said inlet chamber 5.
Preferably, the filter plate 3 and the second baffle 4 define an outlet chamber 6, which outlet chamber 6 is open IN a region adjacent to the outlet zone OUT and closed IN a region adjacent to the inlet zone IN.
According to a preferred embodiment, the filter group 1 comprises pairs of filter plates 3, wherein a baffle 4 is located in the space between two filter plates, such that said inlet chamber 5 is defined between the first filter plate 3 and the baffle 4, and such that the outlet chamber 6 is defined between the second filter plate 3 and the baffle 4.
Preferably, also IN such an embodiment, said outlet chamber 6 is open IN the region adjacent to the outlet zone OUT and closed IN the region adjacent to the inlet zone IN.
According to a preferred embodiment, the filter plate 3 is associated with the baffle 4 to define an outlet chamber 6, the outlet chamber 6 being shaped to comprise a first outlet zone O1 and a second outlet zone O2, the first outlet zone O1 being a region adjacent to the inlet zone IN having a corresponding first cross-section substantially orthogonal to the imaginary plane F, the second outlet zone O2 being a region adjacent to the outlet zone OUT having a corresponding second cross-section substantially orthogonal to the imaginary plane F.
Preferably, the first cross section of the first outlet region O1 is smaller than the second cross section of the second outlet region O2.
IN other words, the filter plate 3 is associated with the baffle 4 to define an outlet chamber 6, the outlet chamber 6 having a smaller passage section near the inlet zone IN and a larger passage section near the outlet zone OUT.
As shown IN the accompanying drawings and described more extensively below, this is achieved by the particular shape of the baffle 4, for example the baffle 4 comprising a particular portion having a tapered path, or comprising a greater number of components adapted to allow the flow of fluid IN the region adjacent to the outlet zone OUT with respect to the number of components present IN the region adjacent to the inlet zone IN.
This particularly preferred embodiment allows a better outflow of the filtered fluid leaving the filter plate 3 and makes said filter plate 3 work as uniformly as possible.
According to some embodiments, the outlet chamber 6 is complementary to the inlet chamber 5.
According to this preferred embodiment, the baffle 4 defines a particular complementary outlet channel 600, in a complementary manner to the inlet channel 500 described below.
According to a preferred embodiment, the spatial position of the inlet zone IN and the outlet zone OUT depends on the shape or position of the baffle 4 delimiting the outlet chamber 6 (as schematically shown IN fig. 10a and 10 b).
According to a preferred embodiment of the invention, the filter group 1 comprises a plurality of filter plates 3 and a plurality of baffles 4 stacked parallel to the direction of the vertical axis V-V.
According to a preferred embodiment, the filter group 1 comprises a plurality of filter plates 3 and a plurality of baffles 4, said plurality of filter plates 3 and said plurality of baffles 4 being stacked parallel to the direction of the vertical axis V-V to form a plurality of inlet chambers 5 and a plurality of outlet chambers 6, said plurality of inlet chambers 5 and said plurality of outlet chambers 6 being traversed in parallel by the working fluid.
According to a preferred embodiment, the inlet chamber 5 and the outlet chamber 6 have the same height.
According to a preferred embodiment, the filter group 1 comprises a plurality of inlet chambers 5 and a plurality of outlet chambers 6 having different heights.
According to a preferred embodiment, the filter group 1 comprises a plurality of filter plates 3 and a plurality of baffles 4, said plurality of filter plates 3 and plurality of baffles 4 being stacked parallel to the direction of the vertical axis V-V to form a plurality of inlet chambers 5 and a plurality of outlet chambers 6, said plurality of inlet chambers 5 and plurality of outlet chambers 6 being arranged to form two filter portions, said two filter portions being serially traversable by the working fluid. In particular, each filtering portion comprises a plurality of inlet chambers 5 and a plurality of outlet chambers 6 traversed in parallel by the working fluid.
In other words, the plurality of filter plates 3 and the plurality of baffles 4 are preferably arranged alternately along said vertical axis V-V to define a plurality of inlet chambers 5 and a plurality of outlet chambers 6.
The term "plate" in this specification refers to a component that extends primarily in two preferred directions.
According to a preferred embodiment, the filter plate 3 and the baffle 4 have the same substantially square shape. In this case, the filter group 1, which is formed by stacking a plurality of filter plates 3 and a plurality of baffles 4, has a cubic shape.
According to a preferred embodiment, the filter plate 3 and the baffle 4 have the same substantially rectangular shape. In this case, the filter group 1, which is obtained by stacking a plurality of filter plates 3 and a plurality of baffles 4, has a parallelepiped shape.
According to a preferred embodiment, the filter plate 3 and the baffle 4 have the same disc-like shape. In this case, the filter group 1, which is formed by stacking a plurality of filter plates 3 and a plurality of baffles 4, has a cylindrical shape.
According to a preferred embodiment, the filter plate 3 is a sheet-like filter medium made of a porous filter material.
According to a preferred embodiment, the filter plate 3 is a filter medium made of non-woven fabric.
Preferably, the filter plate 3 is made of 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.
Preferably, the filter plate 3 is a depth filter membrane made in the form of a flat plate.
According to a preferred embodiment, the filter panel 3 is made of a nonwoven fabric having a permeability between 150mm/s and 950mm/s, preferably between 550mm/s and 700mm/s (measured at 200 Pa).
Preferably, the filter plate 3 is single-layered.
Preferably, the filter plate 3 is multi-layered.
Preferably, the filtering panel 3 comprises a first filtering layer of permeable non-woven fabric with a permeability between 750 and 900mm/s (at 200 Pa) coupled to a second filtering layer of non-woven fabric with a lower permeability between 150 and 200mm/s (at 200 Pa).
According to a preferred embodiment, the filter plate 3 comprises a third filter layer located between the two outer layers and having an intermediate permeability between 250 and 300mm/s (at 200 Pa).
According to a preferred embodiment, the filter plate 3 comprises an adsorbent material, such as activated carbon and/or ion exchange resin and/or zeolite.
Preferably, the filter plate 3 comprises a filter layer adapted to filter particles and an adsorption layer adapted to adsorb gaseous pollutants. Preferably, the filter layer is located upstream of the adsorbent layer with respect to the direction of fluid passage. Preferably, the adsorbent layer comprises a plurality of adsorbent materials, such as activated carbon and ion exchange resins.
According to a preferred embodiment, the filter plate 3 comprises a filter layer adapted for filtering particles and a plurality of adsorbent layers comprising respective adsorbent elements.
According to a preferred embodiment, the filtering panel 3 has an ISO5011 filtering efficiency (ISO FINE) of more than 99%.
According to a preferred embodiment, the thickness of the filter plate 3 is between 0.5 mm and 3 mm (measured according to ASTM D5729-1997), preferably the thickness of the filter plate 3 is between 1.5 mm and 2.8 mm.
According to a preferred embodiment, the baffle 4 is a sheet-like element made of a material belonging to the family of plastic materials.
According to a preferred embodiment, the baffle 4 contains an adsorbent material, such as activated carbon.
According to a preferred embodiment, the thickness of the baffle 4 is less than 1 mm, preferably between 0.1 and 0.5 mm, preferably the baffle has a thickness of 0.2 mm.
According to a preferred embodiment, the baffle 4 is machined by a thermoforming process.
According to a preferred embodiment, the filter plate 3 comprises an inlet filter edge 31 and an outlet filter edge 32.
Furthermore, the filter plate 3 comprises side edges 34 connecting the inlet filter edge 31 to the outlet filter edge 32.
Preferably, the inlet filter edge 31 is adjacent to, preferably facing, the inlet area IN, and the outlet filter edge 32 is adjacent to, preferably facing, the outlet area OUT.
Similarly, the baffle 4 preferably comprises an inlet baffle edge 41 and an outlet baffle edge 42.
Further, the baffle 4 includes a side baffle surface 44.
Preferably, the inlet baffle edge 41 is adjacent to, preferably facing, the inlet area IN, and the outlet baffle edge 42 is adjacent to, preferably facing, the outlet area OUT.
According to a preferred embodiment, said outlet baffle edge 42 sealingly engages the filter plate 3.
Preferably, the outlet baffle rim 42 sealingly engages the outlet filter rim 32 to close the inlet chamber 5.
According to a preferred embodiment, the outlet baffle rim 42 comprises an outlet rim portion 420, the outlet rim portion 420 comprising an outlet receiving cavity 421, the outlet filter rim 32 being received in the outlet receiving cavity 421.
In particular, the outlet filter edge 32 is preferably clamped in the outlet accommodation chamber 421.
Thus, the outlet edge portion 420 preferably closes and blocks the flow of fluid through the thickness of the filter plate 3.
According to other embodiments, the baffle 4 also sealingly engages the filter plate 3 by means of an inlet baffle edge 41, in order to define the outlet chamber 6.
According to a preferred embodiment, as shown in the example in fig. 18a, 18b and 18c, the baffle 4 comprises in the area adjacent to the outlet area OUT a portion shaped such that the sealing engagement on the first filter plate 3 is superimposed to the sealing engagement on the second filter plate 3 along a vertical axis, thereby fluidly closing the inlet chamber 5.
According to a preferred embodiment, the inlet baffle edge 41 joins the filter plate 3 with an inlet edge portion 410, which inlet edge portion 410 comprises an inlet receiving chamber 411, the inlet filter edge 31 of said filter plate 3 being received in the inlet receiving chamber 411.
Preferably, the baffle 4 comprises, IN a region adjacent to the inlet area IN, a portion shaped such that the sealing engagement on the first filter plate 3 is aligned with the sealing engagement on the second filter plate 3 along a vertical axis, thereby fluidly closing the outlet chamber 6, but allowing access to the inlet chamber 5 (as shown for example IN fig. 17a, 17b and 17 c), similar to the shape described above.
According to a preferred embodiment, the inlet filter edge 31 is clamped into the inlet accommodation chamber 411.
Thus, the inlet edge portion 410 preferably closes off and blocks the flow of fluid through the thickness of the filter plate 3.
According to a preferred embodiment, the side dam surfaces 44 sealingly engage the filter plate 3.
According to a preferred embodiment, the side baffle surfaces 44 sealingly engage the side edges 34 of the filter panels 3.
Preferably, the inlet chamber 5 is thus closed on three sides at the side baffle surface 44 and the outlet baffle edge 42.
Preferably, the outlet chamber 6 is thus closed on three sides at the side baffle surface 44 and the inlet baffle edge 41.
According to a preferred embodiment, the side dam surface 44 extends in height substantially parallel to the vertical axis V-V.
According to a preferred embodiment, each side dam surface 44 comprises a support foot 440 substantially parallel to the imaginary plane F, which support foot 440 is adapted to sealingly engage the filter plate 3.
Preferably, the inlet baffle edge 41 and/or the outlet baffle edge 42 comprise respective support steps substantially parallel to the imaginary plane F, which are adapted to sealingly engage the filter plate 3.
According to a preferred embodiment, the side baffle surface 44 comprises a protruding side 441, which side 441 is adapted to extend outside the filter plate 3 at a side opposite to the side where the baffle 4 is coupled to the filter plate 3 to define the inlet chamber 5. Preferably, the protruding side 441 of the baffle 4 is adapted to engage the subsequent baffle 4, allowing the baffles 4 to be stacked in a vertical direction. Preferably, the protruding side 441 of the baffle 4 is adapted to engage the subsequent baffle 4, so that the mutual engagement between two baffles 4 is sealed (as shown in the example in fig. 15).
According to a preferred embodiment, the baffle 4 is located in the space between the two filter plates 3, so that both the first filter plate 3 and the second filter plate 3 are in sealing engagement with the side baffle surface 44.
Preferably, the side dam surfaces 44 are shaped such that the sealing engagement on the first filter plate 3 is aligned with the sealing engagement on the second filter plate 3 along the vertical axis V-V. In other words, the side dam surface 44 also has a preferred shape similar to that shown in the exit area in FIGS. 18a, 18b and 18 c.
According to a preferred embodiment, the baffle 4 is shaped so as to comprise a plurality of alternating walls 40, said plurality of alternating walls 40 being adapted to define a plurality of inlet channels 500 in the inlet chamber 5.
Preferably, each inlet channel 500 comprises an inlet mouth 501 adjacent to the inlet zone IN and a filter section 502 facing the filter plate 3.
Thus, the fluid is guided along each inlet channel 500 at the inlet until reaching the filter section 502 facing the filter plate 3.
According to a preferred embodiment, each alternate wall 40 is connected to the next alternate wall in the top 401 and to the previous alternate wall in the bottom 402.
Preferably, the top portion 401 and/or the bottom portion 402 are connected to each other in an arc-shaped manner.
In some preferred embodiments, the top portion 401 and/or the bottom portion 402 comprise a specific support plane.
According to a preferred embodiment, each bottom 402 of the baffle 4 rests on a filter plate 3.
According to a preferred embodiment, the respective top 401 is engaged by the filter plate 3.
The baffle 4 thus also preferably serves as a reinforcing and supporting element for the filter plate 3.
According to a preferred embodiment, the inlet channels 500 defined by the baffles 4 have lengths different from each other, including a main inlet channel 500, which main inlet channel 500 extends from the inlet zone IN to an area adjacent to the outlet zone OUT.
According to a preferred embodiment, the inlet channels 500 delimited by the baffle 4 comprise auxiliary inlet channels 500, which auxiliary inlet channels 500 extend from the inlet zone IN to a region remote from the outlet zone OUT.
According to a preferred embodiment, the baffle 4 comprises a main inlet channel 500 and an auxiliary inlet channel 500.
According to a preferred embodiment, the inlet channel 500 defined by the baffle 4 has a variable width along the transverse axis Y-Y (as shown, for example, in fig. 12 a).
Preferably, the width of the inlet channel 500 depends on the characteristics of the channel.
Preferably, for example, the width of the inlet channel 500 varies according to the length of the inlet channel 500, the baffle portion having a greater number of channels in the region having a shorter length of the inlet channel 500 relative to the baffle portion having a longer length of the main inlet channel 500.
According to a preferred embodiment, the baffles 4 alternate the primary and secondary inlet channels laterally (as shown by way of example in fig. 13 f).
Such a preferred embodiment is particularly useful for embodiments having a filter plate 3 with an extension that is non-linear (e.g. curved) with respect to the longitudinal axis X-X or with respect to the transverse axis Y-Y.
In a completely similar but complementary manner, the same considerations as described for the inlet channel 500 exist for the outlet channel 600 defined by the baffle 4: for example, if the cross-section of the inlet channel 500 is reduced to have a reduced trend, the cross-section of the outlet channel 600 is enlarged to enlarge the outlet channel 600; for example, the secondary outlet channel is located at the position of the primary inlet channel, and vice versa, the primary outlet channel is located at the position of the secondary inlet channel.
According to a preferred embodiment, the filter plates 3 are disc-shaped, in case the filter group 1 has a cylindrical shape and a radial flow.
According to this embodiment, the baffle 4 is in the shape of a disc.
Preferably, the filter plate 3 and the baffle 4 are joined to each other to define an annular inlet chamber 5.
Preferably, the filter plate 3 and the baffle plate 4 engage each other to define an annular outlet chamber 6.
Preferably, the baffle 4 has radially oriented channels. Preferably, the baffle 4 defines a radially oriented inlet channel 500. Preferably, the baffle 4 defines a radially oriented outlet channel 600 (as shown in fig. 13b to 13 f).
According to an alternative embodiment, the baffle 4 defines a passage channel with a spiral geometry in the inlet chamber 5 and/or the outlet chamber 6 (as shown in fig. 13 e).
According to a preferred embodiment, the alternating walls 40 have an incident path so as to define the inlet channel 500 in a tapered path.
According to a preferred embodiment, the alternating walls 40 have an incident path so as to define an outlet channel in a tapered path.
According to a preferred embodiment, the baffle 4 or the alternate walls 40 comprise a shutter element 409 so as to define an inlet channel 500 with a tapered path.
Preferably, the shielding element 409 is adapted to act as a chute for the fluid towards the filter plate 3.
According to a further embodiment, the filter group 1 comprises a container body 2 suitable for housing a filtering zone R, the container body 2 housing at least one filter plate 3 and at least one baffle 4.
Basically, the shape of the container body enables identification of the inlet zone IN and the outlet zone OUT, so as to fluidly connect the inlet zone IN and the outlet zone OUT through a filtering zone R IN which the filter plates 3 and the baffles 4 are housed.
Furthermore, according to a preferred embodiment, the container body 2 comprises a peripheral gasket 20, which peripheral gasket 20 extends around the at least one filter plate 3 and the at least one baffle 4 so as to define an inlet zone IN.
Some of the features described and illustrated in the preferred embodiments are also present in other embodiments, according to the attached drawings, and according to the relative specific needs of the designer, for example according to the space present in the vehicle.
Preferably, in the schematic diagrams from fig. 1 to 13f, the baffle 4 is shown as being substantially planar; although they have the described wave-like shape as appropriate to define the respective inlet channels 500 and the respective outlet channels 600 described above, as shown in fig. 14 to 19 e.
The filter group, innovatively, fulfills the objects of the present invention to a large extent, overcoming the problems typical of the prior art.
Advantageously, the filter group is in fact adapted to filter a fluid in an efficient and effective manner, not as an obstacle to the fluid flow, but facilitating the movement of the fluid in a substantially main connection direction between the inlet zone and the outlet zone.
In fact, advantageously, the filter group has a wide inlet surface and a wide outlet surface, while at the same time having a wide filtering surface.
Advantageously, the baffle facilitates the flow of fluid at the inlet and facilitates the outflow of fluid at the outlet. Advantageously, the baffle minimizes the pressure drop imposed on the system in which the baffle is installed.
Advantageously, the baffle distributes the flow rate of the fluid impinging on the filter plate, improving the use of available filter surface.
Advantageously, the baffle provides robustness to the filter group.
Advantageously, the baffle comprises an inlet edge engaging the filter plate, which improves the fluid dynamics of the filter group, in particular reduces the pressure drop at the inlet of the inlet chamber.
Advantageously, the baffle comprises an outlet edge engaging the filter plate, which improves the fluid dynamics of the filter group, in particular reduces the pressure drop at the outlet of the outlet chamber.
Advantageously, the baffle comprises an edge portion engaging the filter plate, which simplifies the separation between each inlet chamber and each outlet chamber.
Advantageously, the filter group is modular and simply adapted to the design needs by exploiting all the above advantages.
Advantageously, the filter group allows easy adjustment of the available filter surface by selecting the number of filter plates, baffles and/or by taking care of their dimensions, e.g. their length.
Advantageously, at the design level, the performance of the filter panels can be easily and reliably determined in order to create an effective and efficient filter bank. Advantageously, the loss of performance of the filter plate, which is typically caused by bending/deforming operations, is avoided. In this solution, in fact, the filter plate is used in the form of a flat plate, similar to the experimental conditions for testing and developing it.
Advantageously, the filter panel does not require several production operations, such as filtering a panel comprising a pleated paper filter.
Advantageously, the production costs of the filter plate and the filter group are very low.
Advantageously, the filter plate has a porous and permeable structure, thereby controlling the accumulation of contaminants in its thickness.
Advantageously, the passage channels are formed in the baffle, thereby keeping the structure of the filter plate simple, on which no bending and/or deforming operations have to be performed.
Advantageously, the filter plate has a permeable, voluminous and relatively thick filter structure, which can be used to accumulate contaminants in the thickness of the filter plate, without having to perform a bending operation.
Advantageously, the filter plate may have a multilayer structure, for example comprising at least one filter layer and at least one adsorbent layer, without the need for a folding operation, thereby allowing to obtain a multifunctional filter structure in a relatively simple manner, thereby avoiding the folding process.
Obviously, in order to satisfy contingent needs, a man skilled in the art may make modifications to the invention, all of which are included within the scope of protection defined by the following claims.
List of reference numerals:
1 Filter group
2 Container body
20 peripheral gasket
3 filter plate
31 inlet filter edge
32 outlet filter edge
34 filter side edge
4 baffle
40 alternating walls
401 top part
402 bottom
41 inlet baffle edge
410 inlet edge portion
411 entrance accommodation chamber
42 outlet baffle edge
420 outlet edge portion
421 outlet holding cavity
44 side dam surface
440 support foot
441 projecting side portion
409 Shielding element
5 inlet chamber
500 inlet channel
501 inlet mouth part
502 filtration section
6 outlet chamber
600 outlet channel
X-X longitudinal axis
Y-Y transverse axis
V-V vertical axis
IN entry area
OUT exit region
R filtration zone
F imaginary plane
I1 first inlet zone
I2 second inlet zone
First outlet region of O1
Second outlet zone for O2
C central cavity.

Claims (18)

1. A filter group (1) that can be crossed by a fluid, preferably by air, during filtration, wherein the filter group (1) comprises a filtering region (R) that extends between an inlet zone (IN) through which the fluid to be filtered flows and an outlet zone (OUT) through which the filtered fluid flows, wherein the filter group (1) extends along a longitudinal axis (X-X), along a transversal axis (Y-Y), and IN height along a vertical axis (V-V);
wherein the filter group (1) comprises:
-a filter plate (3) extending with respect to an imaginary plane (F) on which both said longitudinal axis (X-X) and said transversal axis (Y-Y) lie, wherein said filter plate (3) is passable by a fluid in a direction substantially orthogonal to said imaginary plane (F), substantially parallel to said vertical axis (V-V) during filtration;
-a baffle (4) which is fluid impermeable;
-an inlet chamber (5) defined between the filter plate (3) and the baffle (4), wherein the inlet chamber (5) is open IN a region adjacent to the inlet zone (IN) and closed IN a region adjacent to the outlet zone (OUT).
2. The filter group (1) according to claim 1, comprising pairs of fluid impermeable baffles (4) located at two opposite faces of the filter plates (3), wherein a first baffle (4) and the filter plates (3) define the inlet chamber (5), wherein the filter plates (3) and the second baffle (4) define an outlet chamber (6), the outlet chamber (6) being open IN a region adjacent to the outlet zone (OUT) and closed IN a region adjacent to the inlet zone (IN).
3. The filter group (1) according to any of the preceding claims, comprising pairs of filter plates (3), wherein the baffle (4) is located IN a space between two filter plates such that the inlet chamber (5) is defined between a first filter plate (3) and the baffle (4) and such that an outlet chamber (6) is defined between a second filter plate (3) and the baffle (4), wherein the outlet chamber (6) is open IN a region adjacent to the outlet zone (OUT) and closed IN a region adjacent to the inlet zone (IN).
4. The filter group (1) of claims 2 or 3, wherein the spatial position of the inlet zone (IN) and the outlet zone (OUT) is determined according to the shape or position of the baffle (4) delimiting the outlet chamber (6).
5. The filter group (1) of any of the previous claims, wherein the longitudinal axis (X-X) extends along a straight line, a curved line, a broken line or any combination thereof.
6. The filter group (1) of any of the previous claims, wherein the transversal axis (Y-Y) extends along a straight line, a curved line, a broken line or any combination thereof.
7. The filter group (1) of any one of the preceding claims, comprising a central cavity (C) and the filtering region (R) extends around the central cavity (C) so that the outlet zone (OUT) corresponds to the central cavity (C) and the inlet zone (IN) is radially spaced from the outlet zone (OUT).
8. The filter group (1) of any of the preceding claims, wherein the baffle (4) is shaped so as to comprise a plurality of alternating walls (40), the plurality of alternating walls (40) being adapted to define a plurality of inlet channels (500) IN the inlet chamber (5), wherein each inlet channel (500) comprises an inlet port (501) adjacent to the inlet zone (IN) and a filtering section (502) facing the filter plates (3).
9. The filter group (1) of claim 8, wherein each alternate wall (40) is connected to the next alternate wall at the top (401) and to the previous alternate wall at the bottom (402).
10. The filter group (1) of claim 9, wherein each bottom (402) of the baffle (4) rests on the filter plate (3).
11. The filter group (1) of any of claims 9 and 10 and of any of claims 2 or 3, wherein each top (401) is joined to a filter plate (3).
12. The filter group (1) of any of claims 8 to 11, wherein the plurality of inlet channels (500) delimited by the baffles (4) have lengths different from each other, the plurality of inlet channels (500) comprising a main inlet channel (500) and an auxiliary inlet channel (500), the main inlet channel (500) extending from the inlet zone (IN) to a region adjacent to the outlet zone (OUT), the auxiliary inlet channel (500) extending from the inlet zone (IN) to a region remote from the outlet zone (OUT).
13. The filter group (1) of any of claims 8 to 12, wherein the plurality of inlet channels (500) delimited by the baffles (4) have a variable width along the transverse axis (Y-Y).
14. The filter group (1) of any of claims 8 to 13, wherein the alternate walls (40) have an incident path so as to delimit the inlet channel (500) with a tapered path.
15. The filter group (1) of any of the previous claims, comprising a plurality of filter plates (3) and a plurality of baffles (4) stacked parallel to the direction of the vertical axis (V-V).
16. The filter group (1) of any of the preceding claims, wherein the filter panels (3) are sheet-like filter media made of a single or multiple layers of porous filter material.
17. The filter group (1) of any of the previous claims, wherein the baffle (4) is an impermeable element made of a material belonging to the family of plastic materials.
18. The filter group (1) of any of claims 16 or 17, wherein the filter plates (3) and/or the baffles (4) comprise an adsorbent material, such as activated carbon.
CN202110654044.6A 2021-06-11 2021-06-11 Filter group Pending CN115463488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110654044.6A CN115463488A (en) 2021-06-11 2021-06-11 Filter group

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110654044.6A CN115463488A (en) 2021-06-11 2021-06-11 Filter group

Publications (1)

Publication Number Publication Date
CN115463488A true CN115463488A (en) 2022-12-13

Family

ID=84365214

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110654044.6A Pending CN115463488A (en) 2021-06-11 2021-06-11 Filter group

Country Status (1)

Country Link
CN (1) CN115463488A (en)

Similar Documents

Publication Publication Date Title
US7407533B2 (en) Active filter element for end face incident flow
US6953124B2 (en) Filter element with end face inlets and discharge outlets
US10226742B2 (en) Filter module and filter unit
US8696782B2 (en) Filter device, especially air filter for an internal combustion engine
EP0202071B1 (en) Fuel filter
US20060091084A1 (en) Fluted filter media with intermediate flow restriction and method of making same
US5885455A (en) Filtration unit with pleated filter element
EP2949374B1 (en) Filter elements and methods for filtering fluids
CN102413897A (en) Filter assembly for gas turbine with mounting flange extension
US7641804B2 (en) Filter unit, filter device and filtration process for fluids
US10272368B2 (en) Filter element and filter arrangement
WO2023100084A1 (en) Filter assembly
CN216726253U (en) Filter group
CN115463488A (en) Filter group
CN115463490A (en) Filter group
CN115463489A (en) Filter group
KR101404984B1 (en) Manifold plates and fluid treatment arrangements including manifold plates
US20240001275A1 (en) Filter group
CN218107123U (en) Filter assembly
WO2022112904A1 (en) Filter group
WO2022112905A1 (en) Filter group
CN117138481A (en) Filter set
WO2023100085A1 (en) Filter assembly
CN117138472A (en) Filter set
CN116764351A (en) Filter assembly

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination