Aerator, and sanitary outlet arrangement

Abstract

The invention relates to an aerator (1), wherein a plate-shaped support structure (43) is formed downstream of a disassembly unit (2), from which support structure flow obstacles (5) project on both sides into a mixing chamber (3).

Description

[0001] PC 230011 C March 14, 2023 Jet regulator and sanitary outlet arrangement The invention relates to a jet regulator with a splitter unit and with flow obstacles running downstream of the splitter unit transversely to a main flow direction, wherein a support structure is formed downstream of the splitter unit. The flow obstacles can be arranged, for example, in a mixing chamber and / or at a downstream end of a mixing chamber, for example as an outlet structure. It is known to form flow obstacles on an insert in the mixing chamber. The support structure often surrounds the flow obstacles on the outside. Such a jet regulator is known, for example, from US 4,365,755 A. Such jet regulators are known and have proven themselves in practice. The flow obstacles can be arranged such that they ensure good mixing of water flowing along a main flow direction with sucked-in air.or that they achieve, for example, a good division of the partial jets emerging from the splitter unit. A splitter unit can be characterized, for example, as a functional assembly that effects a decoupling of the flow behavior in the jet regulator, i.e., downstream of the splitter unit, from the flow behavior upstream of the splitter unit. Thus, it can be easily achieved that the flow behavior inside a jet regulator is independent of the flow behavior upstream of or in front of the splitter unit. The described decoupling is often achieved by splitting into accelerated individual jets. The invention further relates to a sanitary outlet arrangement,with a jet regulator of the type described above and with a fastening element that accommodates the jet regulator. This represents a preferred application in the context of the invention. For example, fastening elements known as "mouthpieces" have become known. Sleeve-shaped screw sleeves that can be completely screwed into a water outlet of a fitting are also known. The invention is based on the object of simplifying the manufacture of a jet regulator. To achieve the stated object, the features of claim 1 are provided according to the invention. In particular, to achieve the stated object, in a jet regulator of the type described above, the invention proposes that the support structure divide the mixing chamber into at least two sub-chambers,that each of the at least two sub-chambers has a number of flow obstacles and that the flow obstacles protrude from the support structure. The support structure thus supports the flow obstacles. The support structure can be molded onto the splitter unit and, in particular, connected to it in one piece. It is advantageous that the jet regulator is formed in one piece at least downstream of the splitter unit. Assembly steps are thus dispensable. The mixing chamber is designed to mix water with air, in particular to add air to individual jets passing through the splitter unit. The mixing chamber PC 230011 C 3 / 33 14 March 2023 can be delimited on the downstream side by an outlet structure and / or flow straightener. The mixing chamber can be delimited on the upstream side by the splitter unit. For example, it can be providedthat the mixing chamber is open to the outside. Thus, a tool can be easily inserted during injection molding and removed after use. The flow obstructions can be molded onto the support structure. This enables a one-piece design of the jet regulator at least downstream of the splitter unit. Alternatively or additionally, a jet regulator with the features of the first independent claim can be provided to achieve the stated object. Thus, in this solution, the invention proposes for a jet regulator of the type mentioned at the outset that the flow obstructions form an outlet structure delimiting the mixing chamber, that the mixing chamber is open to the outside, and that the flow obstructions are molded onto the support structure. The mixing chamber can be designed without peripheral walls and / or open on all sides in the circumferential direction. Thus, a very simply constructed jet regulator can be provided,which has essential functions of a more complex jet regulator. Through the lateral opening of the mixing chamber, injection molding tools can be easily inserted and removed. In principle, however, it is also conceivable and possible to manufacture the described jet regulators using an additive process (e.g., "3D printing"). In an advantageous embodiment, it can be provided that the mixing chamber is designed to be free of flow obstructions. Thus, the geometric complexity of the jet regulator PC 230011 C 4 / 33 March 14, 2023 can be reduced. This is particularly advantageous in conjunction with an outlet structure formed from flow obstructions on the support structure. In an advantageous embodiment, it can be provided that the support structure is plate-shaped. Thus, a stabilizing separation of the two subchambers can be achieved. Alternatively or additionally, it can be providedthat the support structure is designed to be watertight, at least in the area of ​​the flow obstacles. This prevents water flow through the support structure. In an advantageous embodiment, the support structure can be designed in a pin-shaped manner. This allows rotationally symmetrical mixing chambers to be formed. In an advantageous embodiment, the support structure can extend over a lateral extension of the splitter unit. This allows a liquid-tight closure of the separation of the mixing chamber, at least in the area of ​​the flow obstacles. In an advantageous embodiment, the support structure can extend from the splitter unit to an outlet structure. This allows the full height of the mixing chamber to be used to form flow obstacles. It is also advantageous that an outlet structure can be attached to the splitter unit via the support structure. This enablesthat the outlet structure can be connected in one piece to the disassembly unit. It can be provided that the support structure – at least in each sub-chamber – extends from the disassembly unit to an outlet structure. Thus, each sub-chamber can be used in its full height for the arrangement of flow obstacles. It can be provided that the outlet structure is connected to the support structure. Thus, a one-piece design can be achieved at least below the disassembly unit. In an advantageous embodiment, it can be provided that the flow obstacles are designed as webs running parallel to one another. This allows for easy demolding after injection molding. In an advantageous embodiment, it can be provided,that the flow obstacles each form a free end. This allows an injection molding tool to be easily removed. In an advantageous embodiment, it can be provided that the flow obstacles each have an end face that simulates a circumferential contour of the splitter unit. This allows a compact design to be achieved. It is also possible in this way for the flow obstacles to rest against an inner wall of a fastening element, for example an outlet nozzle or a screw sleeve, wherein the fastening element conveys a circumferential contour of the splitter unit to the level of the mixing chamber. This makes it easy to insert the jet regulator into a receiving space of the fastening element. In an advantageous embodiment, it can be provided that a, for example the already mentioned, circumferential contour of the splitter unit and / or a,for example, the contour of an outlet structure, for example the one already mentioned, is round. Thus, geometric compatibility with a fitting having a round basic shape can be easily achieved. In an advantageous embodiment, it can be provided that the flow obstacles at the lateral ends of the support structure are shorter than at a center of the support structure. Thus, demoldability of the flow obstacles and a round outer contour can be achieved simultaneously in a simple manner. Alternatively or additionally, it can be provided that a length of the flow obstacles extends from one, for example the already mentioned, lateral end of the support structure to one, for example the already mentioned,In the middle of the support structure, it is thus easy to achieve a transition from a non-circular cross-section of the support structure to a round outer contour of the jet regulator. In an advantageous embodiment, it can be provided that the flow obstacles have a non-increasing cross-section as they move away from the support structure. In this way, a constant or decreasing cross-section can be achieved, which facilitates demolding during injection molding. In an advantageous embodiment, it can be provided that two adjacent flow obstacles each enclose a U-shaped intermediate space. This avoids undercuts at the flow obstacles. In an advantageous embodiment, it can be provided that adjacent flow obstacles are aligned parallel to one another. This can facilitate production by injection molding. In an advantageous embodiment, it can be provided thatthat the outlet structure has completely bordered holes. This allows for a lateral limitation of an exiting water jet. In an advantageous embodiment, it can be provided that the outlet structure has at least one circumferential annular web. A annular web has proven particularly advantageous for achieving an attractive envelope shape for an exiting water jet. In this case, it can be provided that the annular web is designed to match a circumferential contour of the splitter unit. Thus, a cross-sectional shape of a water jet exiting the outlet structure can be adapted to a basic shape of the splitter unit. Since the splitter unit with its basic shape is adaptable to a fastening element, it is thus easy to adapt the cross-sectional shape of the exiting water jet to a basic shape of the fastening element, for example a cylindrical basic shape or a cuboid basic shape.achievable. In an advantageous embodiment, it can be provided that the splitter unit has a perforated plate. Thus, a structurally particularly simple splitter unit can be used. A perforated plate is a component with low complexity in injection molding production as a component that can be demolded from one side. This facilitates a one-piece production of the jet regulator. In an advantageous embodiment of possibly independent inventive quality, in a jet regulator of the type described above or in one of the described embodiments, it can be provided that a ventilation channel leading from the outside to the splitter unit is formed in the support structure. Thus, jet ventilation can be achieved without the mixing chamber having to have an outer wall. In an advantageous embodiment, it can be providedthat a tool attachment for screwing the jet regulator is formed on the ventilation channel. Alternatively or additionally, the tool attachment can be formed on an outlet structure, for example the one already mentioned. This makes it possible to apply torque to the support structure and further to the disintegrator unit. This is particularly advantageous if the disintegrator unit has a thread for screwing to a fitting. In an advantageous embodiment, it can be provided that a tool parting plane runs along the support structure. Thus, demolding along the flow obstacles is easily achievable. In an advantageous embodiment, it can be provided that a tool parting plane runs along the disintegrator unit. Thus, the disintegrator unit can be demolded against the main flow direction. This can be achieved,that the flow obstacles do not hinder demolding of the disintegrator unit. This facilitates a one-piece production of the disintegrator unit and the support structure with flow obstacles. In an advantageous embodiment, it can be provided that a mold parting plane runs along the outlet structure. Thus, the outlet structure can be demolded along the main flow direction. This can be achieved that the flow obstacles do not hinder demolding of the outlet structure. This facilitates a one-piece production of the outlet structure and the support structure with flow obstacles. In an advantageous embodiment, it can be provided that the disintegrator unit forms a preferably circumferential side wall on the upstream side. This makes it easy to fasten the disintegrator unit and thus also the jet regulator in the main flow path. In an advantageous embodiment, it can be providedthat the splitter unit is cup-shaped. This allows the incoming water to be collected at the splitter unit. In an advantageous embodiment, it can be provided that the flow obstacles are arranged in at least two groups lying one above the other in the main flow direction. This allows for several levels to be formed, in each of which mixing processes can be brought about. The flow obstacles of different groups can be designed in the same way or differently from one another. In an advantageous embodiment, it can be provided that successive flow obstacles in the main flow direction have the same length. This allows for a uniform outer contour of the mixing chamber to be defined. In an advantageous embodiment, it can be provided that a circumferential support surface is formed on the splitter unit,in particular, wherein the support surface limits the flow obstacles in the lateral direction. Thus, an engagement surface for a fastening element can be formed. In an advantageous embodiment, it can be provided that the splitter unit has contact elements in a perforated area on the upstream side for the (axial) support and / or for the lateral alignment of a sealing ring. Thus, an upstream sealing ring can be easily positioned. In an advantageous embodiment, it can be provided that the splitter unit has reinforcing ribs on the outside. Thus, lateral stabilization of the jet regulator can be achieved. In this case, it can be provided that free ends of the reinforcing ribs simulate a contour described by the support surface. Thus, the splitter unit can be fitted into a fastening element. Alternatively or additionally, to achieve the stated object, the features of the secondary,directed to a sanitary outlet arrangement. In particular, to achieve the stated object in a sanitary outlet arrangement of the type described above, it is proposed according to the invention that free ends of the flow obstacles end at an inner wall of a fastening element, in particular the fastening element already mentioned. Thus, mixing can be achieved in the entire clear inner area of ​​the inner wall. In an advantageous embodiment, it can be provided that the fastening element is designed as a sleeve. This allows for easy reception and fastening of the jet regulator to a fitting. PC 230011 C 11 / 33 March 14, 2023 With a round basic shape, the fastening element can be designed, for example, as a screw sleeve. This enables the use of standardized fastening techniques. In an advantageous embodiment, it can be providedthat the fastening element grips the jet regulator at its splitter unit. This allows for simple and secure suspension of the jet regulator in the main flow path. In an advantageous embodiment, it can be provided that the fastening element has at least two receptacles for a jet regulator according to the invention, in particular as described above and / or according to one of the claims directed to a jet regulator. Thus, miniaturization is achievable through a parallel arrangement of the jet regulators in the main flow path. In this way, two-dimensional arrangements of jet regulators can be formed on a fastening element. In an advantageous embodiment, it can be provided that the fastening element has at least one ventilation window. This allows for air supply from the outside. In an advantageous embodiment, it can be providedthat the outlet structure is arranged at a distance from the fastening element. Thus, an outer annular component of the emerging water jet can be formed without interruption. The invention will now be described in more detail with reference to exemplary embodiments, but is not limited to the exemplary embodiments. Further exemplary embodiments result from combining the features of individual or multiple claims PC 230011 C 12 / 33 March 14, 2023 with one another and / or with individual or multiple features of the exemplary embodiment. It shows: Figure 1 shows a jet regulator according to the invention in a sanitary outlet unit in a three-dimensional oblique view of the inflow side, Figure 2 shows the sanitary outlet unit according to Figure 1 in a three-dimensional oblique view of the outflow side, Figure 3 shows an axial section through the sanitary outlet unit according to Figure 1, Figure 4 shows an exploded view of the sanitary outlet unit according to Figure 1,Figure 5 shows the jet regulator of the sanitary outlet unit according to Figure 1 in a three-dimensional oblique view of the outlet side, Figure 6 shows a first side view of the jet regulator according to Figure 5, Figure 7 shows a second side view of the jet regulator according to Figure 5, rotated by 90° compared to Figure 6, Figure 8 shows a frontal view of the inflow side of the jet regulator according to Figure 5, Figure 9 shows a frontal view of the outflow side of the jet regulator according to Figure 5, PC 230011 C 13 / 33 14 March 2023 Figure 10 shows a further sanitary outlet unit according to the invention in an axial section, Figure 11 shows the sanitary outlet unit according to Figure 10 in an exploded view, Figure 12 shows an axial section (top left), a detailed enlargement (right) and a frontal view of the inflow side (bottom left) of the fastening element with inserted jet regulators of the sanitary outlet unit according to Figure 11,Figure 13 shows a third sanitary outlet unit according to the invention in a three-dimensional oblique view of the downstream side, Figure 14 shows an axial section through the sanitary outlet unit according to Figure 13, Figure 15 shows an exploded view of the sanitary outlet unit according to Figure 13, Figure 16 shows the jet regulator from Figure 15 in a side view, Figure 17 shows the jet regulator from Figure 15 in a three-dimensional oblique view of the downstream side, Figure 18 shows the jet regulator according to Figures 16 and 17 in a frontal view of the downstream side, Figure 19 shows a fourth sanitary outlet unit according to the invention in a three-dimensional oblique view of the downstream side, PC 230011 C 14 / 33 14 March 2023 Figure 20 shows the sanitary outlet unit according to Figure 19 in a frontal view of the downstream side, Figure 21 shows the sanitary outlet unit Figure 19 in a first Axial section, Figure 22 the sanitary outlet unit according to Figure 19 in a second,an axial sectional view rotated by 90° compared to Figure 21, Figure 23 shows the jet regulator of the sanitary outlet unit according to Figure 19 in a three-dimensional oblique view from below, Figure 24 shows another jet regulator according to the invention in a three-dimensional oblique view of the downstream side, Figure 25 shows a cross section through the jet regulator according to Figure 2, 4,Figure 26 shows a further axial section through the jet regulator according to Figure 24, rotated by 90° compared to Figure 25, Figure 27 shows an outlet end of a fitting with a built-in jet regulator according to the invention in a longitudinal section, Figure 28 shows the arrangement according to Figure 27 in a cross-section rotated by 90°, Figure 29 shows the jet regulator according to Figure 27 in an oblique view from below onto the downstream side, PC 230011 C 15 / 33 14 March 2023 Figure 30 shows the jet regulator according to Figure 29 in an axial section, Figure 31 shows the jet regulator according to Figure 29 in a side view, Figure 32 shows the jet regulator according to Figure 29 in an off-center axial section, Figure 33 shows a further jet regulator according to the invention in a partially (off-center) cut-away, three-dimensional oblique view onto the downstream side and Figure 34 shows a variant of Figure 33 in a Axial section.In the following, identical reference numerals are used for functionally and / or structurally similar or identical components and functional units, so that the statements regarding a component or a functional unit also refer to corresponding details of further exemplary embodiments. Figures 1 to 9 show a first exemplary embodiment of a jet regulator 1 of a sanitary outlet unit 41 according to the invention. The sanitary outlet units 41 shown in each case are examples of or parts of a respective sanitary outlet arrangement. The jet regulator 1 has a splitter unit 2 in a manner known per se. PC 230011 C 16 / 33 March 14, 2023 A mixing chamber 3 follows the splitter unit 2 in a main flow direction 4. Flow obstacles 5 are formed in the mixing chamber 3 and influence a flow behavior in the interior 6 of the jet regulator 1.The splitter unit 2 thereby decouples the flow behavior in the interior 6 of the jet regulator 1 from the flow behavior upstream of the splitter unit 2, for example in a fitting 46. A support structure 43 is formed in the interior 6 of the jet regulator, which is plate-shaped and divides the mixing chamber 3 into two sub-chambers 7. The plate is dimensioned so large that the support structure 43 fills a lateral extension 8 of the splitter unit 2. Downstream of the mixing chamber 3 with respect to the main flow direction 4, an outlet structure 9 is arranged. The splitter unit 2 and the outlet structure 9 thus delimit the mixing chamber 3 and define the overall height 10 of the mixing chamber 3. In particular, it can be seen from Figures 6 and 7 that the mixing chamber 3 is open to the outside.The support structure 43 is designed to be watertight, at least in the area of ​​the flow obstacles 5, so that no flow can occur at the level of the flow obstacles 5 between the subchambers 7. PC 230011 C 17 / 33 March 14, 2023 The flow obstacles 5 protrude from the support structure 43 and are each formed by a web 11, the free end 12 of which forms an end face 13. The end faces 13 are adapted to a circumferential contour 14 of the disintegrator unit 2, so that a receiving space 19, against which the disintegrator unit 14 can rest or lie, contacts the flow obstacles 5 or is at a defined distance from them. Figure 3 clearly shows that the free ends 12 of the flow obstacles 5 run to an inner wall 15 of a fastening element 16. In the example, the fastening element 16 is designed as a screw sleeve 17 or mouthpiece 18 and serves to fasten the jet regulator 1 in the outlet of a fitting 46.The fastening element 16 thus provides the receiving space 19 for the jet regulator, which is matched to the dimensions of the flow obstacles 5 and the splitter unit 2. Figure 3 further shows that the flow obstacles 5 have a decreasing cross-section 21 in their extension 20 away from the support structure 43. Two adjacent flow obstacles 5 form a gap 22 between them that is open to the outside. This results in a U-shaped basic shape of the two flow obstacles 5 together with a section of the support structure 43. By comparing Figures 6 and 7, it can be seen that the flow obstacles 5 are aligned parallel to one another. PC 230011 C 18 / 33 March 14, 2023 The splitter unit 2 has a perforated plate 25 with an arrangement of sleeve-shaped holes 49.This perforated plate 25 can, for example, be formed by an injection molding tool with projections arranged at the positions of the holes 49, wherein this injection molding tool can be removed against the main flow direction 4 for demolding. The sleeve-shaped holes 49 create a negative pressure as the water exits into the mixing chamber 3, which can be used to draw in air through ventilation windows 39. This air-water mixture mixes in the mixing chamber 3 to form an air-enriched water jet, which can exit through the outlet structure 9 as a homogeneous jet. Figure 7 shows the positions of the tool parting planes 27, 28, 29 that are present for manufacturing the jet regulator 1. A first injection molding tool is moved from above to the tool parting plane 28 to form the separator unit 2.A second injection molding tool can be moved from below to the mold parting plane 29 to form the outlet structure 9. A third and fourth injection molding tool are moved laterally to the mold parting plane 27 to form the support structure 43 and the flow obstacles 5. During demolding, it is advantageous that the flow obstacles 5 PC 230011 C 19 / 33 March 14, 2023 have, on the one hand, a cross-section 21 that decreases outwards and, on the other hand, are aligned parallel to one another. On the inflow side of the splitter unit 2, a circumferential side wall 30 is formed, which gives the inflow side a pot-shaped configuration. This supports the collection of the inflowing water at the holes 49. Figure 7 in particular shows that the flow obstacles 5 are arranged in four groups 31 that follow one another in the main flow direction 4.Figure 6 shows that flow obstacles 5 within a group 31 have consistent cross-sections. Between groups 31, however, the flow obstacles 5 have at least partially different cross-sections. By comparing Figures 6 and 7, it becomes clear that, in the main flow direction 4, successive flow obstacles 5 have a consistent length 32, resulting in a substantially cylindrical envelope. On the underside or downstream side of the splitter unit 2, a circumferential support surface 33 is formed, which, during use, rests on the fastening element 16 and is axially fixed thereto, for example, snapped or pressed, see Figure 3. On the upstream side, in the perforated area 34 having the holes 49, the splitter unit 2 has an arrangement of contact elements 35, which hold a sealing ring 36 and align it in its position.Figures 10 to 12 show a further exemplary embodiment of a sanitary outlet unit 41 according to the invention. This exemplary embodiment differs from the previous exemplary embodiment in that the fastening element 16 has a plurality of receiving spaces 19, each for a jet regulator 1. The statements regarding the previous exemplary embodiment apply accordingly to the jet regulator 1. However, in this exemplary embodiment, the fastening element 16 is not designed to be screwed into a conventional water outlet of a fitting 46; instead, a separate housing 48 is provided, which can be screwed onto a fitting 46 or the like. Ventilation windows 39 are formed on the fastening element 16, each of which is assigned to a jet regulator 1 and interacts with it. Figures 13 to 19 show a further exemplary embodiment of a sanitary outlet unit 41 according to the invention.The statements regarding the preceding exemplary embodiments apply here accordingly. This exemplary embodiment differs from the preceding exemplary embodiments in that the outlet structure has completely bordered holes 23, which are slot-shaped here. PC 230011 C 21 / 33 March 14, 2023 The complete bordering is achieved here by an annular web 24. The exemplary embodiment according to Figures 13 to 18 also differs from the preceding exemplary embodiments in that reinforcing ribs 37 are formed on a side of the splitter unit 2 facing away from the flow. These reinforcing ribs 37 describe a contour in the circumferential direction that corresponds to the contour of the free ends of the flow obstacles 5. Thus, the jet regulator 1 according to Figures 16 to 18 can be inserted into the interior 40 of the sleeve-shaped fastening element 16.This interior space 40 is essentially cylindrical and forms the previously described receiving space 19 for the jet regulator 1. Figures 19 to 23 show a further exemplary embodiment of a sanitary outlet unit 41 according to the invention. Again, the statements regarding the preceding exemplary embodiments apply accordingly. This exemplary embodiment differs from the preceding exemplary embodiments in that the outlet structure 9 is formed from a plurality of hexagonal holes 23. Figure 15 also shows that the sanitary outlet unit 1 has a flow regulator 44 and an attachment sieve 45, which can be inserted into the pot-shaped splitter unit 2. This can be the case for all of the jet regulators 1 shown. PC 230011 C 22 / 33 March 14, 2023 Figures 24 to 26 show a further exemplary embodiment of a sanitary outlet unit 41 according to the invention. Again, the statements regarding the preceding exemplary embodiments apply accordingly.This embodiment differs from the other embodiments in that an outlet structure 9 is formed with a rectangular grid. Figures 27 to 32 show a further embodiment of a jet regulator 1 according to the invention. Figures 27 and 28 show that the jet regulator 1 can be screwed directly, i.e. without a fastening element, into the water outlet 50 of a fitting 46. For this purpose, the jet regulator 1 has a thread 47 at the level of the splitter unit 2. The embodiment according to Figures 27 to 32 also differs in that the support structure 43 is double-walled and forms a ventilation channel 26 inside. This ventilation channel opens via the ventilation windows 39 into the mixing chamber 43 just below the splitter unit 2, so that the air can be sucked in here in the manner described.The ventilation channel 26 is designed here such that it can also serve as a tool attachment for screwing the jet regulator 1. PC 230011 C 23 / 33 March 14, 2023 Fig. 33 shows a further exemplary embodiment according to the invention. Components and functional units that are functionally and / or structurally similar or identical to the preceding exemplary embodiments are designated by the same reference numerals and are not described separately again. The comments on Figures 1 to 32 therefore apply accordingly to Figure 33. The exemplary embodiment according to Fig. 33 differs from the preceding exemplary embodiments in that the support structure 43 is pin-shaped. Here, the flow obstacles 5 are integrally formed on the support structure 43 at a downstream end 51 of the mixing chamber 3. The flow obstacles 5 form an outlet structure 9 that delimits the mixing chamber 3, which can otherwise be free of flow obstacles.A tool attachment 54, for example a hexagon socket, is formed on the support structure 43 and is accessible from the outside in order to be able to screw the jet regulator 1. Figure 34 shows a further jet regulator 1, which is a variant of Fig. 33. In this jet regulator 1, the support structure 43 is hollow on the inside. Thus, a ventilation channel 26 is formed. A ventilation window 39 can be formed in order to be able to supply air into the mixing chamber 3. The tool attachment 54, which can also be formed here, can extend over part or - as shown here - over practically the entire axial length of the support structure 43. In further embodiments, the ventilation window 39 is closed. In a jet regulator 1, it is thus proposed to form a plate-shaped support structure 43 on the downstream side of a splitter unit 2, from which flow obstacles 5 protrude on both sides into a mixing chamber 3. / List of reference symbols.

[0002] PC 230011 C 25 / 33 14 March 2023 List of reference symbols 1 Jet regulator 2 Disintegrator unit 3 Mixing chamber 4 Main flow direction 5 Flow obstacle 6 Interior of the jet regulator 7 Partial chamber 8 Lateral extension of the disintegrator unit 9 Outlet structure 10 Overall height of the mixing chamber 11 Web 12 Free end of the flow obstacles 13 End face 14 Circumferential contour of the disintegrator unit 15 Inner wall 16 Fastening element 17 Screw sleeve 18 Mouthpiece 19 Receptacle of the fastening element 20 Course of the flow obstacles 21 Cross section of the flow obstacles 22 Intermediate space 23 Holes in the outlet structure 24 Ring web 25 Perforated plate 26 Ventilation channel 27 Mold parting plane 28 Mold parting plane 29 Mold parting plane 30 Side wall on the disintegrator unit 31 Group 32 Length 33 Support surface PC 230011 C 26 / 33 14.March 2023 34 perforated area 35 contact element 36 sealing ring 37 reinforcing rib 38 contour of the outlet structure 39 ventilation window 40 interior 41 sanitary outlet unit 42 thread 43 support structure 44 flow regulator 45 front strainer 46 fitting 47 thread 48 housing 49 hole 50 water outlet 51 downstream end of 3 52 lateral end of 43 53 center of 43 54 tool attachment / claims.

Claims

PC 230011 C 27 / 33 March 14, 2023 Claims 1. Aerator (1), comprising a separation unit (2) and flow obstructions (5) arranged downstream of the separation unit (2), preferably in a mixing chamber (3) and / or at a downstream end (51) of a mixing chamber (3), extending transversely to a main flow direction (4), wherein a support structure (43) is formed downstream of the separation unit (2), characterized in that the support structure (43) divides the mixing chamber (3) into at least two sub-chambers (7), that each of the at least two sub-chambers (7) has a number of flow obstructions (5) and that the flow obstructions (5) project from the support structure (43).

2. Aerator (1) according to the preceding claim, characterized in that the mixing chamber (3) is open to the outside and / or that the flow obstructions (5) are integrally formed on the support structure (43). 3.A flow regulator (1) according to the preamble of claim 1 or according to claim 1 or 2, characterized in that the flow obstructions (5) form an outlet structure (9) limiting the mixing chamber, that the mixing chamber (3) is open to the outside, in particular without circumferential walls and / or open on all sides in the circumferential direction, and that the flow obstructions (5) are integrally formed on the support structure (43).

4. A flow regulator (1) according to the preceding claim, characterized in that the mixing chamber (3) is open to the outside and / or that the mixing chamber (3) is free of flow obstructions. PC 230011 C 28 / 33 March 14, 2023 5. Aerator (1) according to one of the preceding claims, characterized in that the support structure (43) is plate-shaped and / or watertight at least in the area of ​​flow obstructions, or that the support structure (43) is pin-shaped.

6. Aerator (1) according to one of the preceding claims, characterized in that the support structure (43) extends over a lateral extension (8) of the disassembly unit (2).

7. Aerator (1) according to one of the preceding claims, characterized in that the support structure (43) extends from the disassembly unit (2) to a discharge structure (9), in particular wherein the discharge structure (9) is connected to the support structure (43).

8. Flow regulator (1) according to one of the preceding claims, characterized in that the flow obstructions (5) are designed as webs (11) preferably running parallel to each other in at least each sub-chamber (7). 9.A flow regulator (1) according to any one of the preceding claims, characterized in that the flow obstructions (5) each form a free end (12).

10. A flow regulator (1) according to any one of the preceding claims, characterized in that the flow obstructions (5) each have an end face (13) that replicates a circumferential contour (14) of the separation unit (2).

11. A flow regulator (1) according to any one of the preceding claims, characterized in that the circumferential contour (14) of the separation unit (2) and / or the contour (14) of the outlet structure (9) is round. PC 230011 C 29 / 33 March 14, 2023 12. Aerator (1) according to one of the preceding claims, characterized in that the flow obstructions (5) at the lateral ends (52) of the support structure (43) are shorter than at a center (53) of the support structure (43) and / or that a length (32) of the flow obstructions (5) increases from the or a lateral end (52) of the support structure (43) to the or a center (53) of the support structure (43).

13. Aerator (1) according to one of the preceding claims, characterized in that the flow obstructions (5) have a non-increasing cross-section (21) in their course (20) away from the support structure (43).

14. Flow regulator (1) according to one of the preceding claims, characterized in that each pair of adjacent flow obstructions (5) encloses a U-shaped gap (22). 15.A flow regulator (1) according to any one of the preceding claims, characterized in that adjacent flow obstructions (5) are aligned parallel to each other.

16. A flow regulator (1) according to any one of the preceding claims, characterized in that the outlet structure (9) has fully rimmed holes (23).

17. A flow regulator (1) according to any one of the preceding claims, characterized in that the outlet structure (9) has at least one circumferential annular rib (24) that preferably matches a circumferential contour (14) of the disassembly unit (2). PC 230011 C 30 / 33 March 14, 2023 18. Aerator (1) according to one of the preceding claims, characterized in that the disassembly unit (2) has a perforated plate (25).

19. Aerator (1) according to the preamble of claim 1 or according to one of the preceding claims, characterized in that a ventilation channel (26) leading from the outside to the disassembly unit (2) is formed in the support structure (43).

20. Aerator (1) according to one of the preceding claims, characterized in that a tool projection (54) for screwing the aerator (1) is formed on the ventilation channel (26) and / or on the outlet structure (9).

21. Aerator (1) according to one of the preceding claims, characterized in that a tool parting line (27, 28, 29) extends along the support structure (43). 22.

23. Aerator (1) according to one of the preceding claims, characterized in that a tool parting line (27, 28, 29) extends along the separation unit (2) and / or the outlet structure (9).

24. Aerator (1) according to one of the preceding claims, characterized in that the separation unit (2) forms a preferably circumferential side wall (30) on the upstream side and / or is cup-shaped.

25. Aerator (1) according to one of the preceding claims, characterized in that the flow obstructions (5) are arranged in at least two superimposed groups (31) in the main flow direction (4). PC 230011 C 31 / 33 March 14, 2023 25. Aerator (1) according to one of the preceding claims, characterized in that successive flow obstructions (5) in a main flow direction (4) have a uniform length (32).

26. Aerator (1) according to one of the preceding claims, characterized in that a circumferential support surface (33) is formed on the separating unit (2), in particular wherein the support surface (33) limits the flow obstructions (5) laterally.

27. Aerator (1) according to one of the preceding claims, characterized in that the separating unit (2) has, on the upstream side, in a perforated area (34), contact elements (35) for supporting and / or laterally aligning a sealing ring (36). 28.Aerator (1) according to one of the preceding claims, characterized in that the disassembly unit (2) has reinforcing ribs (37) on its outer surface, in particular wherein the free ends of the reinforcing ribs (37) form a contour (38) described by the contact surface (33).

29. Aerator (1) according to one of the preceding claims, characterized in that the support structure (43) is integrally formed with the disassembly unit (2), in particular integrally connected with it.

30. Sanitary outlet arrangement, comprising an aerator (1) according to one of the preceding claims and a fastening element (16) receiving the aerator (1), characterized in that free ends of the flow obstructions (12) terminate on an inner wall (15) of the fastening element (16). PC 230011 C 32 / 33 March 14, 2023 31. Sanitary outlet arrangement according to the preceding claim, characterized in that the fastening element (16) is designed as a sleeve, in particular as a screw sleeve (17), and / or that the fastening element (16) engages the aerator (1) at its disassembly unit (2).

32. Sanitary outlet arrangement according to claim 30 or 31, characterized in that the fastening element (16) has at least two receptacles for an aerator (1) according to one of claims 1 to 29.

33. Sanitary outlet arrangement according to one of claims 30 to 32, characterized in that the fastening element (16) has at least one ventilation window (39).

34. Sanitary outlet arrangement according to one of claims 30 to 33, characterized in that the outlet structure (9) is arranged spaced apart from the fastening element (16). / Summary

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