EP4095455A1 - Distribution unit, in particular for air distribution in ventilation systems - Google Patents
Distribution unit, in particular for air distribution in ventilation systems Download PDFInfo
- Publication number
- EP4095455A1 EP4095455A1 EP22175182.9A EP22175182A EP4095455A1 EP 4095455 A1 EP4095455 A1 EP 4095455A1 EP 22175182 A EP22175182 A EP 22175182A EP 4095455 A1 EP4095455 A1 EP 4095455A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fins
- casing
- inlet
- unit according
- axis
- 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.)
- Granted
Links
- 238000009826 distribution Methods 0.000 title claims abstract description 28
- 238000009423 ventilation Methods 0.000 title claims abstract description 9
- 239000012530 fluid Substances 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 5
- 239000006261 foam material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005399 mechanical ventilation Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0236—Ducting arrangements with ducts including air distributors, e.g. air collecting boxes with at least three openings
Definitions
- the present invention relates to a distribution unit, in particular for air distribution in ventilation systems or the like.
- VMC controlled mechanical ventilation
- a typical distribution unit therefore comprises a container having an internal chamber and provided with an inlet fitting and a plurality of outlets, shaped so as to receive fittings, for example a bayonet fitting, interlocking fitting, etc., which are then connected to pipe sections.
- fittings for example a bayonet fitting, interlocking fitting, etc.
- the pipes can be joined directly to the container, without the need for fittings.
- VMC controlled mechanical ventilation
- Certain known distribution units provide a deflector, which consists of a substantially flat plate arranged in front of the inlet which intercepts the flow entering the unit, essentially for the purpose of reducing the noise of the air circulating in the unit.
- the object of the present invention is to overcome the drawbacks of the prior art described herein in a particularly simple and efficient manner.
- the object of the invention is to provide a distribution unit, in particular for air distribution in ventilation systems or the like, which allows a uniform distribution of the inlet flow to all the outlets of the unit, which is both simple and inexpensive to manufacture, and practical and effective to use.
- the present invention relates to a distribution unit, in particular for air distribution in ventilation systems or the like, as defined in the appended claim 1.
- the invention allows the volume of air entering the unit to be distributed uniformly to all the perimetric outlets with which the unit is provided, without causing excessive pressure loss and at the same time being simple and inexpensive to manufacture, and practical and effective to use.
- the air for example produced by VMC machines (i.e., by a ventilation system) with variable flow rates (indicatively, but not necessarily, between 100 m3/h and 650 m3/h), is distributed uniformly to the outlets thanks to the particular deflector assembly housed in the distribution unit.
- the deflector assembly housed inside the distribution unit contributes to reducing the noise of the distribution unit and also to giving rigidity and strength to the casing of the distribution unit.
- a distribution unit 1 in particular for air distribution in ventilation systems, comprises a casing 2, for example made of plastic material (plastic, i.e., polymeric material), in particular a substantially rigid polymeric material, having an inlet 3 and a plurality of outlets 4.
- plastic material plastic, i.e., polymeric material
- substantially rigid polymeric material having an inlet 3 and a plurality of outlets 4.
- the casing 2 is box-shaped and has walls 5 which delimit an internal chamber 6.
- the casing 2 can have different shapes and sizes, also depending on the use for which the unit 1 is intended.
- the casing 2 has the shape of a parallelepiped and the walls 5 comprise a pair of opposite quadrangular (for example, square) base walls 7 and four rectangular side walls 8 which join the base walls 7.
- the casing 2 is formed by two half-shells 11 coupled together and also comprises an insulating structure 12 positioned inside the walls 5 and made of a material having thermal and acoustic insulation properties, for example, a polymeric foam material.
- the inlet 3 is defined by an opening 13, formed through a first wall 5a of the casing 2.
- the wall 5a provided with the inlet 3 is one of the side walls 8, but it is understood that the inlet 3 can be formed in any other wall 5 of the casing 2, even in one of the base walls 7.
- the opening 3 is associated with an inlet fitting 14 shaped to engage an external pipe with the possibility of different connection diameters and which brings a flow of fluid (for example, air) to the unit 1.
- a flow of fluid for example, air
- the outlets 4 are positioned on one or more second walls 5b of the casing 2, for example, on one or more side walls 8, and are defined by respective openings 15 formed through the walls 5b.
- the openings 15 are closed by respective closing tabs 16, which can be torn off to open the respective opening 15.
- Each tab 16 has a weakened break line joining the tab 16 to the casing 2 and defines a tear-off opening for removing the tab 16 and opening the respective opening 15. It is understood that the openings 15 can be closed by other types of closing elements and be provided with other opening systems.
- outlets 4 can be connected by means of respective outlet fittings (not shown) to external pipes.
- the outlets 4 can be arranged in various ways and have different shapes and sizes. In the illustrated embodiment, the outlets 4 are all identical to each other and regularly spaced apart on the walls 5b. In particular, there are two superimposed rows of three outlets 4 arranged side by side on each wall 5b.
- the unit 1 comprises a deflector assembly 20 housed inside the casing 2 in the chamber 6.
- the deflector assembly 20 is positioned in front of the inlet 3 and centrally in the chamber 6.
- the deflector assembly 20 extends along and about a central axis A of the unit 1, perpendicular to the base walls 7, and is symmetrical with respect to a middle plane P passing through the axis A (i.e., containing the axis A) and perpendicular to the inlet 3 (and therefore passing through a geometric centre of the opening 13 defining the inlet 3).
- the deflector assembly 20 comprises a plurality of fins 21 arranged about the axis A and extending parallel to the axis A between a pair of opposite walls 5, in this case between the base walls 7.
- each fin 21 has a pair of opposite faces 22, 23, curved or flat, joined by a pair of sides 24.
- the faces 22, 23 have a greater extension than the sides 24.
- the faces 22, 23 are substantially parallel and the fins 21 have a constant thickness (measured in a plane perpendicular to the axis A between the faces) and a constant cross section (parallel to the axis A).
- the fins 21 are positioned in a central region of the chamber 6 and have cross sections which are inscribed in a circle C which is perpendicular to the axis A and preferably has its centre on the axis A.
- the fins 21 have respective sides 24 arranged along said circle C.
- the deflector assembly 20 comprises a first pair of front fins 21a, positioned in front of the inlet 3 to intercept a fluid flow passing through the inlet 3, and a second pair of rear fins 21b, positioned behind the front fins 21a and therefore further away from the inlet 3 (i.e., the fins 21a are closer to the inlet 3 than the fins 21b) .
- each pair of fins 21a, 21b are spaced apart from one another and separated by respective passages 25 aligned with the inlet 3.
- the rear fins 21b are spaced apart from the front fins 21a along the plane P (i.e., the fins 21a and the fins 21b are staggered in a direction perpendicular to the plane P).
- the front fins 21a have a curved cross section, in particular shaped as an arc of a circle, and have respective concave faces 22 facing towards the inlet 3.
- the front fins 21a have a prevalent orientation substantially parallel to the inlet 3.
- the front fins 21a (in particular, their faces 22) are shaped so as to divert the fluid flow coming from the inlet 3 at least partly towards the plane P.
- the front fins 21a have respective sides 24 facing each other, delimiting the passage 25, and substantially parallel to each other and to the plane P.
- the front fins 21a are substantially aligned on opposite sides of the plane P and in front of the inlet 3.
- the two front fins 21a are symmetrical with respect to the plane P.
- the rear fins 21b have a rectilinear cross section and have respective flat, parallel opposite faces 22, 23.
- the rear fins 21b are symmetrical with respect to the plane P and centrally converge in the chamber 6 and are inclined with respect to each other and with respect to the front fins 21a.
- the deflector assembly 20 may include a different number of fins 21, with shapes and arrangements different from those described and illustrated herein by way of example.
- the deflector assembly 20, or at least the fins 21, are made of a polymeric foam material, for example EPP/EPS, so as to have better noise reduction characteristics.
- the fins 21 can be made of other materials, for example, rigid plastic.
- the fins 21 are supported by a support 30 comprising a base 31 and a head 32 aligned along the axis A and joined to respective axially opposite ends of the fins 21.
- the support 30 is removable from the casing 2 and can be extracted from the casing 2 through a service opening 33 ( Figure 1 ) formed, for example, in a base wall 7 of the casing 2.
- the head 32 of the support 30 is shaped so as to close the service opening 33 when the deflector assembly 20 is housed in the casing 2; and is provided with fastening members 34, for example, threaded members, bayonet members, or the like, for coupling to the casing 2.
- the base 31 is shaped so as to engage a seat formed in the base wall 7 opposite the base wall 7 provided with the service opening 33.
- the deflector assembly 20 includes a first pair of front fins 21a, positioned in front of the inlet 3, and a second pair of rear fins 21b, positioned behind the front fins 21a and therefore further away from the inlet 3 (i.e., the fins 21a are closer to the inlet 3 than the fins 21b); the rear fins 21b are spaced apart from the front fins 21a along the plane P (i.e., the fins 21a and the fins 21b are staggered in a direction perpendicular to the plane P).
- the front fins 21a have a curved cross section and have respective concave faces 22 facing towards the inlet 3.
- the faces 22 of the front fins 21a have the same radius of curvature and the same centre of curvature and thus define, in cross section, two separated portions of one curved line.
- the rear fins 21b are shaped and arranged symmetrically with respect to the front fins 21a. Therefore, the rear fins 21b are also arc-shaped and have respective concave faces 22 facing a wall 5b of the casing 2 opposite the wall 5a provided with the inlet 3; the fins 21a and the fins 21b have respective convex faces 23 facing each other.
- the front fins 21a have a prevalent orientation substantially parallel to the inlet 3; and are shaped so as to divert the flow coming from the inlet 3 at least partly towards the plane P.
- the deflector assembly 20 also comprises a central element 35, positioned along the axis A and extending along the axis A between the base walls 7, for example, substantially cylindrical with a circular cross section. It is understood that the central element 35 can also be differently shaped.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
- This patent application claims priority from
Italian patent application no. 102021000013712 filed on May 26, 2021 - The present invention relates to a distribution unit, in particular for air distribution in ventilation systems or the like.
- As is known, in various fluid distribution systems, such as for example controlled mechanical ventilation (VMC) systems, distribution units are used which, in general, receive an inlet flow and divide it into a plurality of outlet flows or, vice versa, receive a plurality of inlet flows and combine them into a single outlet flow.
- A typical distribution unit therefore comprises a container having an internal chamber and provided with an inlet fitting and a plurality of outlets, shaped so as to receive fittings, for example a bayonet fitting, interlocking fitting, etc., which are then connected to pipe sections. In certain cases, the pipes can be joined directly to the container, without the need for fittings.
- The problem arises of uniformly distributing the inlet fluid flow to all the outlets. In general, in fact, it is possible that the inlet fluid flow is not distributed evenly to all the outlets but that some outlets receive a higher flow rate than others.
- For example, in controlled mechanical ventilation (VMC) systems, air is circulated by machines with different air flow rates. The distribution units divide the air flow from the ventilation machines into several outlets which are connected to pipes of different lengths.
- Certain known distribution units provide a deflector, which consists of a substantially flat plate arranged in front of the inlet which intercepts the flow entering the unit, essentially for the purpose of reducing the noise of the air circulating in the unit.
- However, this solution, like other similar ones, is not capable of uniformly distributing the flow to the various outlets, especially if there are numerous outlets.
- The object of the present invention is to overcome the drawbacks of the prior art described herein in a particularly simple and efficient manner.
- In particular, the object of the invention is to provide a distribution unit, in particular for air distribution in ventilation systems or the like, which allows a uniform distribution of the inlet flow to all the outlets of the unit, which is both simple and inexpensive to manufacture, and practical and effective to use.
- Therefore, the present invention relates to a distribution unit, in particular for air distribution in ventilation systems or the like, as defined in the appended
claim 1. - Preferred features of the invention are defined in the dependent claims.
- The invention allows the volume of air entering the unit to be distributed uniformly to all the perimetric outlets with which the unit is provided, without causing excessive pressure loss and at the same time being simple and inexpensive to manufacture, and practical and effective to use.
- The air, for example produced by VMC machines (i.e., by a ventilation system) with variable flow rates (indicatively, but not necessarily, between 100 m3/h and 650 m3/h), is distributed uniformly to the outlets thanks to the particular deflector assembly housed in the distribution unit.
- In particular, experimental tests confirmed that, in distribution units provided with the deflector assembly according to the invention, the inlet flow rate is distributed, with a tolerance of ±10 m3/h, uniformly to all the outlets of the unit.
- Comparative tests carried out by means of simulations have shown that, in similar distribution units devoid of the deflector assemblies according to the invention, the differences in flow rates between the various outlets can be as high as 70 m3/h; and the use of a flat-wall deflector according to the prior art results in a difference of about 40 m3/h.
- In addition, the deflector assembly housed inside the distribution unit contributes to reducing the noise of the distribution unit and also to giving rigidity and strength to the casing of the distribution unit.
- Further features and advantages of the present invention will be apparent from the following description of a non-limiting embodiment thereof, with reference to the figures of the accompanying drawings, wherein:
-
Figure 1 is a perspective view of a distribution unit in accordance with the invention; -
Figure 2 is a perspective view, with parts removed for clarity, of the unit inFigure 1 ; -
Figure 3 is a longitudinal sectional view, with parts removed for clarity, of the unit inFigure 1 ; -
Figure 4 is an enlarged scale view of a detail of the section inFigure 3 ; -
Figure 5 is a perspective view, on an enlarged scale, of a further detail of the unit inFigure 1 ; -
Figure 6 is a longitudinal sectional view, with parts removed for clarity, of a variant of the distribution unit in accordance with the invention. - With reference to
Figures 1 to 3 , adistribution unit 1, in particular for air distribution in ventilation systems, comprises acasing 2, for example made of plastic material (plastic, i.e., polymeric material), in particular a substantially rigid polymeric material, having aninlet 3 and a plurality ofoutlets 4. - The
casing 2 is box-shaped and haswalls 5 which delimit aninternal chamber 6. - The
casing 2 can have different shapes and sizes, also depending on the use for which theunit 1 is intended. - In the non-limiting example shown, the
casing 2 has the shape of a parallelepiped and thewalls 5 comprise a pair of opposite quadrangular (for example, square)base walls 7 and fourrectangular side walls 8 which join thebase walls 7. - In the illustrated embodiment, but not necessarily, the
casing 2 is formed by two half-shells 11 coupled together and also comprises aninsulating structure 12 positioned inside thewalls 5 and made of a material having thermal and acoustic insulation properties, for example, a polymeric foam material. - The
inlet 3 is defined by anopening 13, formed through afirst wall 5a of thecasing 2. In the illustrated example, thewall 5a provided with theinlet 3 is one of theside walls 8, but it is understood that theinlet 3 can be formed in anyother wall 5 of thecasing 2, even in one of thebase walls 7. - The
opening 3 is associated with an inlet fitting 14 shaped to engage an external pipe with the possibility of different connection diameters and which brings a flow of fluid (for example, air) to theunit 1. - The
outlets 4 are positioned on one or moresecond walls 5b of thecasing 2, for example, on one ormore side walls 8, and are defined byrespective openings 15 formed through thewalls 5b. - Advantageously, but not necessarily, the
openings 15 are closed byrespective closing tabs 16, which can be torn off to open therespective opening 15. Eachtab 16 has a weakened break line joining thetab 16 to thecasing 2 and defines a tear-off opening for removing thetab 16 and opening therespective opening 15. It is understood that theopenings 15 can be closed by other types of closing elements and be provided with other opening systems. - Once the
openings 15 have been opened, theoutlets 4 can be connected by means of respective outlet fittings (not shown) to external pipes. - The
outlets 4 can be arranged in various ways and have different shapes and sizes. In the illustrated embodiment, theoutlets 4 are all identical to each other and regularly spaced apart on thewalls 5b. In particular, there are two superimposed rows of threeoutlets 4 arranged side by side on eachwall 5b. - With specific reference to
Figures 2 and3 , theunit 1 comprises adeflector assembly 20 housed inside thecasing 2 in thechamber 6. - The
deflector assembly 20 is positioned in front of theinlet 3 and centrally in thechamber 6. - In particular, the
deflector assembly 20 extends along and about a central axis A of theunit 1, perpendicular to thebase walls 7, and is symmetrical with respect to a middle plane P passing through the axis A (i.e., containing the axis A) and perpendicular to the inlet 3 (and therefore passing through a geometric centre of theopening 13 defining the inlet 3). - The
deflector assembly 20 comprises a plurality offins 21 arranged about the axis A and extending parallel to the axis A between a pair ofopposite walls 5, in this case between thebase walls 7. - Also referring to
Figure 4 , eachfin 21 has a pair ofopposite faces sides 24. Thefaces sides 24. - Preferably, but not necessarily, the
faces fins 21 have a constant thickness (measured in a plane perpendicular to the axis A between the faces) and a constant cross section (parallel to the axis A). - The
fins 21 are positioned in a central region of thechamber 6 and have cross sections which are inscribed in a circle C which is perpendicular to the axis A and preferably has its centre on the axis A. In particular, thefins 21 haverespective sides 24 arranged along said circle C. - Preferably, the
deflector assembly 20 comprises a first pair offront fins 21a, positioned in front of theinlet 3 to intercept a fluid flow passing through theinlet 3, and a second pair ofrear fins 21b, positioned behind thefront fins 21a and therefore further away from the inlet 3 (i.e., thefins 21a are closer to theinlet 3 than thefins 21b) . - The fins of each pair of
fins respective passages 25 aligned with theinlet 3. - The
rear fins 21b are spaced apart from the front fins 21a along the plane P (i.e., thefins 21a and thefins 21b are staggered in a direction perpendicular to the plane P). - In the examples illustrated in
Figures 2-4 , thefront fins 21a have a curved cross section, in particular shaped as an arc of a circle, and have respectiveconcave faces 22 facing towards theinlet 3. - The
front fins 21a have a prevalent orientation substantially parallel to theinlet 3. - The
front fins 21a (in particular, their faces 22) are shaped so as to divert the fluid flow coming from theinlet 3 at least partly towards the plane P. - The
front fins 21a haverespective sides 24 facing each other, delimiting thepassage 25, and substantially parallel to each other and to the plane P. - The
front fins 21a are substantially aligned on opposite sides of the plane P and in front of theinlet 3. The twofront fins 21a are symmetrical with respect to the plane P. - The
rear fins 21b have a rectilinear cross section and have respective flat, parallel opposite faces 22, 23. - The
rear fins 21b are symmetrical with respect to the plane P and centrally converge in thechamber 6 and are inclined with respect to each other and with respect to thefront fins 21a. - It is understood, however, that the
deflector assembly 20 may include a different number offins 21, with shapes and arrangements different from those described and illustrated herein by way of example. - Advantageously, the
deflector assembly 20, or at least thefins 21, are made of a polymeric foam material, for example EPP/EPS, so as to have better noise reduction characteristics. However, thefins 21 can be made of other materials, for example, rigid plastic. - Advantageously, as shown in particular in
Figure 5 , thefins 21 are supported by asupport 30 comprising abase 31 and ahead 32 aligned along the axis A and joined to respective axially opposite ends of thefins 21. - The
support 30 is removable from thecasing 2 and can be extracted from thecasing 2 through a service opening 33 (Figure 1 ) formed, for example, in abase wall 7 of thecasing 2. Thehead 32 of thesupport 30 is shaped so as to close theservice opening 33 when thedeflector assembly 20 is housed in thecasing 2; and is provided withfastening members 34, for example, threaded members, bayonet members, or the like, for coupling to thecasing 2. Thebase 31 is shaped so as to engage a seat formed in thebase wall 7 opposite thebase wall 7 provided with theservice opening 33. - In the embodiment in
Figure 6 , thedeflector assembly 20 includes a first pair offront fins 21a, positioned in front of theinlet 3, and a second pair ofrear fins 21b, positioned behind thefront fins 21a and therefore further away from the inlet 3 (i.e., thefins 21a are closer to theinlet 3 than thefins 21b); therear fins 21b are spaced apart from thefront fins 21a along the plane P (i.e., thefins 21a and thefins 21b are staggered in a direction perpendicular to the plane P). - The
front fins 21a have a curved cross section and have respective concave faces 22 facing towards theinlet 3. - The faces 22 of the
front fins 21a have the same radius of curvature and the same centre of curvature and thus define, in cross section, two separated portions of one curved line. - The
rear fins 21b are shaped and arranged symmetrically with respect to thefront fins 21a. Therefore, therear fins 21b are also arc-shaped and have respective concave faces 22 facing awall 5b of thecasing 2 opposite thewall 5a provided with theinlet 3; thefins 21a and thefins 21b have respectiveconvex faces 23 facing each other. - In this embodiment too, the
front fins 21a have a prevalent orientation substantially parallel to theinlet 3; and are shaped so as to divert the flow coming from theinlet 3 at least partly towards the plane P. - The
deflector assembly 20 also comprises acentral element 35, positioned along the axis A and extending along the axis A between thebase walls 7, for example, substantially cylindrical with a circular cross section. It is understood that thecentral element 35 can also be differently shaped. - Lastly, it is understood that further modifications and variations can be made to the distribution unit as described and illustrated herein without departing from the scope of the accompanying claims.
Claims (13)
- A distribution unit (1), in particular for air distribution in ventilation systems, comprising a box-shaped casing (2) having walls (5) which delimit an internal chamber (6); the casing (2) having an inlet (3), formed in a first wall (5a) of the casing (2), and a plurality of outlets (4), formed in one or more second walls (5b) of the casing (2); wherein the unit (1) comprises a deflector assembly (20) housed inside the casing (2) in the chamber (6); the deflector assembly (20) comprising a plurality of fins (21) positioned in front of the inlet (3) and centrally in the chamber (6) and arranged about a central axis (A) and extending parallel to the axis (A) between a pair of opposite walls (5) of the casing (2); the fins being arranged in pairs of fins (21a, 21b), the fins (21a, 21b) of each pair being substantially aligned with each other in front of the inlet (3) and symmetrically positioned on opposite sides of a middle plane (P) containing the axis (A) and perpendicular to the inlet (3); a first pair of front fins (21a) being positioned in front of the inlet (3), and a second pair of rear fins (21b) being positioned behind the front fins (21a) and farther from the inlet (3) than the front fins (21a); the unit being characterised in that the front fins (21a) are shaped so as to divert a fluid flow coming from the inlet (3) at least partly towards the plane (P).
- The unit according to claim 1, wherein the fins (21) have a constant thickness and a constant cross section.
- The unit according to one of the preceding claims, wherein the fins (21) are positioned in a central region of the chamber (6) and have cross sections which are inscribed in a circle (C) which is perpendicular to the axis (A) and preferably has its centre on the axis (A), the fins (21) having respective sides (24) arranged along said circle (C).
- The unit according to one of the preceding claims, wherein the fins of each pair of fins (21a, 21b) are spaced apart from one another and separated by respective passages (25) aligned with the inlet (3); and the front fins (21a) are spaced apart from the rear fins (21b) along the plane (P) .
- The unit according to one of the preceding claims, wherein the front fins (21a) have a curved cross section, in particular shaped as an arc of a circle, and have respective concave faces (22) facing towards the inlet (3).
- The unit according to claim 5, wherein the concave faces (22) of the front fins (21a) have the same radius of curvature and the same centre of curvature and thus define, in cross section, two separated portions of one curved line.
- The unit according to one of the preceding claims, wherein the rear fins (21b) have a rectilinear cross section and have respective opposite flat faces (22, 23).
- The unit according to claim 7, wherein the rear fins (21b) centrally converge in the chamber (6) and are inclined with respect to each other and with respect to the front fins (21a).
- The unit according to one of the preceding claims, wherein the front fins (21a) and the rear fins (21b) are arc-shaped and have respective concave faces (22) facing towards respective opposite walls (5a, 5b) of the casing (2) and respective convex faces (23) facing towards each other.
- The unit according to one of the preceding claims, wherein the deflector assembly (20) comprises a central element (35), positioned along the axis (A) and extending along the axis (A) parallel to the fins (21).
- The unit according to claim 10, wherein the central element (35) is a substantially cylindrical element having a substantially circular cross-section.
- The unit according to one of the preceding claims, wherein the fins (21) are supported by a support (30) comprising a base (31) and a head (32) aligned along the axis (A) and joined to respective axially opposite ends of the fins (21), the support (30) being removable from the casing (2) through a service opening (33) formed in the casing (2).
- The unit according to claim 12, wherein the head (32) of the support (30) is shaped so as to close the service opening (33) when the deflector assembly (20) is housed in the casing (2); and is provided with fastening members (34) for coupling to the casing (2).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT102021000013712A IT202100013712A1 (en) | 2021-05-26 | 2021-05-26 | DISTRIBUTION UNITS, PARTICULARLY FOR AIR DISTRIBUTION IN VENTILATION SYSTEMS |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4095455A1 true EP4095455A1 (en) | 2022-11-30 |
EP4095455B1 EP4095455B1 (en) | 2024-03-20 |
Family
ID=77412156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP22175182.9A Active EP4095455B1 (en) | 2021-05-26 | 2022-05-24 | Distribution unit, in particular for air distribution in ventilation systems |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP4095455B1 (en) |
IL (1) | IL293324A (en) |
IT (1) | IT202100013712A1 (en) |
PL (1) | PL4095455T3 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000130830A (en) * | 1998-10-23 | 2000-05-12 | Kuken Kogyo Kk | Air conditioner chamber |
WO2009091172A2 (en) * | 2008-01-16 | 2009-07-23 | Duct connector and ventilation system, and volume control device and mechanism comprising the same | |
KR20140005292U (en) * | 2013-04-01 | 2014-10-13 | 신기만 | Apparatus for controlling supply amount and direction of air |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200459987Y1 (en) * | 2009-02-05 | 2012-04-27 | 신기만 | Air conditioning apparatus |
KR101236280B1 (en) * | 2010-04-16 | 2013-02-22 | 신석환 | Apparatus for controlling supply amount and direction of air |
-
2021
- 2021-05-26 IT IT102021000013712A patent/IT202100013712A1/en unknown
-
2022
- 2022-05-24 PL PL22175182.9T patent/PL4095455T3/en unknown
- 2022-05-24 EP EP22175182.9A patent/EP4095455B1/en active Active
- 2022-05-24 IL IL293324A patent/IL293324A/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000130830A (en) * | 1998-10-23 | 2000-05-12 | Kuken Kogyo Kk | Air conditioner chamber |
WO2009091172A2 (en) * | 2008-01-16 | 2009-07-23 | Duct connector and ventilation system, and volume control device and mechanism comprising the same | |
KR20140005292U (en) * | 2013-04-01 | 2014-10-13 | 신기만 | Apparatus for controlling supply amount and direction of air |
Also Published As
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EP4095455B1 (en) | 2024-03-20 |
IL293324A (en) | 2022-12-01 |
PL4095455T3 (en) | 2024-06-10 |
IT202100013712A1 (en) | 2022-11-26 |
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