EP4389295A1 - Filter for a hollow conical nozzle body - Google Patents
Filter for a hollow conical nozzle body Download PDFInfo
- Publication number
- EP4389295A1 EP4389295A1 EP23213377.7A EP23213377A EP4389295A1 EP 4389295 A1 EP4389295 A1 EP 4389295A1 EP 23213377 A EP23213377 A EP 23213377A EP 4389295 A1 EP4389295 A1 EP 4389295A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hollow cone
- filter
- nozzle body
- channel
- filter arrangement
- 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
Links
- 238000001746 injection moulding Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 description 24
- 239000002245 particle Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
- B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
- B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
- B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
- B05B1/3436—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a plane perpendicular to the outlet axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
- B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
- B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
- B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
- B05B1/3442—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a cone having the same axis as the outlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/40—Filters located upstream of the spraying outlets
Definitions
- the present invention relates to a hollow cone nozzle body with at least one nozzle geometry, at least one vortex chamber and at least one vortex channel, wherein the vortex chamber opens tangentially into the vortex chamber.
- fluid is fed into the vortex chamber via a vortex channel, with the vortex channel opening tangentially into the vortex chamber. This causes the fluid to rotate within the vortex chamber until it is finally ejected through the nozzle geometry. During the ejection process, the fluid is pressed from the vortex chamber through the nozzle geometry, with the fluid being atomized as it exits the nozzle geometry. This creates an aerosol.
- the vortex chamber and the nozzle geometry can be arranged rotationally symmetrically around a common axis. This is referred to as a symmetrical hollow cone nozzle geometry.
- the vortex chamber can be designed asymmetrically, with a nozzle geometry arranged at the end of the vortex chamber.
- An asymmetrical nozzle geometry is referred to as an asymmetrical hollow cone nozzle.
- the hollow cone nozzle bodies are manufactured, for example, by an injection molding process.
- hollow cone nozzle blanks manufactured by an injection molding process can also be processed by laser to form a hollow cone nozzle body. Due to the advancement of accuracy and machining precision, ever smaller dimensions of the individual geometries, such as the nozzle geometry, the swirl chamber and/or the swirl channel, are possible. Due to the ever smaller dimensions, small particles can lead to the Nozzle geometry, the vortex chamber and/or the vortex channel are clogged. This leads to the hollow cone nozzle body no longer functioning properly.
- the at least one vortex channel has at least one filter arrangement.
- This filter arrangement can filter out particles that are in the fluid. This means that downstream fluid-carrying geometries, such as the vortex chamber, the vortex channel and/or the nozzle geometry, can no longer be blocked by the filtered-out particles. This ensures that the hollow cone nozzle body is used properly.
- the at least one filter arrangement is integrated in the hollow cone nozzle body.
- the filter arrangement and the hollow cone nozzle body are designed as one piece.
- the filter arrangement can be created, for example, as part of the manufacturing process of the hollow cone nozzle body.
- the use of a filter arrangement according to the invention keeps assembly costs to a minimum. This leads to good cost efficiency.
- existing manufacturing methods and processes do not have to be adapted, but can also be used for the inventive arrangement of a filter arrangement in the hollow cone nozzle body. Accordingly, assembly costs are kept low.
- the filter arrangement preferably has at least one filter channel.
- the filter channel is essentially oriented along the vortex channel.
- a filter channel has an elongated extension, so that, for example, at high pressures, particles cannot simply be pushed through the filter channel. Rather, such particles remain stuck in the filter channel, so that good use of the hollow cone nozzle body can be ensured.
- the filter arrangement can, for example, have one, two, three or more filter channels. If more than one filter channel is provided, fluid can be transferred through the remaining filter channel if one filter channel is blocked. This ensures use of the hollow cone nozzle body.
- the at least one filter channel has a first cross-sectional area that is smaller than a second cross-sectional area of the nozzle geometry.
- the first cross-sectional area refers to the cross-sectional area of an individual filter channel. This prevents particles from overcoming the filter arrangement and then clogging the nozzle geometry. Rather, particles are filtered out by the filter arrangement so that these particles can no longer clog the nozzle geometry. This ensures that the hollow cone nozzle body can be used.
- the filter arrangement preferably has a third cross-sectional area that is arranged perpendicular to the flow direction, wherein a width of the third cross-sectional area is a multiple of a height of the third cross-sectional area, wherein the width is arranged perpendicular to the height.
- the flow direction corresponds to the flow direction of the fluid that is to be ejected through the nozzle geometry.
- the filter arrangement is arranged in the vortex channel, so that the flow direction corresponds to the flow direction of the vortex channel.
- the width of the third cross-sectional area corresponds to the total width of all filter channels, while the height corresponds to the height of the filter channels. As a result, a flat arrangement of the filter arrangement is achieved. This arrangement is easy to produce.
- the filter arrangement preferably ends at an upper boundary of the at least one vortex channel.
- the filter arrangement is thus integrated in the at least one vortex channel. This ensures good sealing. Furthermore, other components of a hollow cone nozzle spray can be used without having to adapt them. This ensures good economic efficiency.
- the at least one vortex channel is wider in the area of the filter arrangement than in the remaining areas of the at least one filter channel. This allows the filter arrangement to be dimensioned accordingly to continue to ensure good fluid permeability. In addition, fluid resistance caused by the filter arrangement is kept low. This also allows unrestricted use of the hollow cone nozzle body.
- the filter arrangement can preferably be manufactured by an injection molding process and/or laser processing. This means that the filter arrangement can be realized within the scope of the already known manufacturing options for hollow cone nozzle bodies. This represents a cost-effective measure.
- Fig.1 shows a hollow cone nozzle body 1, which has a nozzle geometry 2, a vortex chamber 3, a vortex channel 4 and a filter arrangement 5. Fluid is transferred from the left side of the filter arrangement through the filter arrangement in order to then be introduced tangentially into the vortex chamber 3 via the vortex channel 4. There, the fluid is set in rotation and then ejected through the nozzle geometry 2.
- Fig.2 shows a sectional view of the Fig.1 shown hollow cone nozzle body 1 along the line AA.
- the hollow cone nozzle body 1 with the filter arrangement 5 the vortex chamber 3 and the nozzle geometry 2 are shown.
- the vortex chamber 3 is funnel-shaped. Fluid is fed tangentially through the vortex channel 4 at the wide end of the funnel. The fluid is set in rotation within the vortex chamber 3 in order to then be ejected through the nozzle geometry 2. The fluid is transferred to an ejection recess 6 on the outside of the hollow cone nozzle body.
- the filter arrangement 5 ends at a level with an upper limit of the vortex channel 4.
- the vortex channel 4 is shown by a dashed line.
- Fig.3 shows the detail X, which shows the filter arrangement 5 in detail.
- the filter arrangement 5 is made in one piece with the hollow cone nozzle body 1 and has four filter channels 7 in the present embodiment. Fluid is fed from a left side of the filter arrangement 5 through the filter channels 7 transferred to the right side of the filter arrangement. From the right side of the filter arrangement 5, the fluid is then transferred into the vortex channel 4.
- the filter arrangement serves as a sieve or filter to filter the fluid in order to ultimately prevent the nozzle geometry 2 from becoming clogged.
- Fig.4 shows a sectional view along the Fig.3
- the individual filter channels 7 have a semicircular cross-section in the present embodiment, which extends from a surface 8 into the material of the hollow cone nozzle body.
- the surface 8 also forms the upper boundary of the at least one vortex channel 4.
- a third cross-sectional area of the filter arrangement 5 is visible.
- the third cross-sectional area corresponds to a width B of all the fluid channels 7 shown and a height H corresponds to the extension of the fluid channels 7 starting from the surface 8 into the material of the hollow cone nozzle body 1.
- the fluid channels 7 are arranged next to one another and form a matrix with a column or a row.
- the at least one filter channel 7 has a first cross-sectional area that is smaller than a second cross-sectional area of the nozzle geometry.
- the first cross-sectional area corresponds to the area through which fluid is guided.
- the second cross-sectional area also corresponds to an area through which fluid can be transferred.
- the second cross-sectional area is the smallest cross-sectional area of the nozzle geometry. Because the first cross-sectional area is smaller than the second cross-sectional area, particles that could clog the second cross-sectional area or the nozzle geometry 2 are filtered out early by the filter arrangement 5.
- the filter arrangement 5 can already be integrated in the manufacturing process of the hollow cone nozzle body 1.
- the hollow cone nozzle body 1 can for example, be manufactured entirely by an injection molding process.
- the hollow cone nozzle body 1 can initially be designed as a hollow cone nozzle blank, which is then processed by laser processing to form a hollow cone nozzle body 1.
- the vortex channel 4 of the present embodiment has a smaller width than the filter arrangement 5. This allows several filter channels 7 to be arranged next to one another in order to ensure the required flow of the fluid.
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- Nozzles (AREA)
Abstract
Die vorliegende Erfindung betrifft einen Filter für Hohlkegeldüsenkörper (1) mit wenigstens einer Düsengeometrie (2), wenigstens einer Wirbelkammer (3) und wenigstens einem Wirbelkanal (4), wobei der Wirbelkanal (4) tangential in die Wirbelkammer (3) mündet.Aufgabe der vorliegenden Erfindung ist es, die Verwendung eines Filters für Hohlkegeldüsenkörpers (1) sicherzustellen.Dazu weist der wenigstens eine Wirbelkanal wenigstens eine Filteranordnung (5) auf.The present invention relates to a filter for hollow cone nozzle bodies (1) with at least one nozzle geometry (2), at least one vortex chamber (3) and at least one vortex channel (4), wherein the vortex channel (4) opens tangentially into the vortex chamber (3). The object of the present invention is to ensure the use of a filter for hollow cone nozzle bodies (1). For this purpose, the at least one vortex channel has at least one filter arrangement (5).
Description
Die vorliegende Erfindung betrifft einen Hohlkegeldüsenkörper mit wenigstens einer Düsengeometrie, wenigstens einer Wirbelkammer und wenigstens einem Wirbelkanal, wobei die Wirbelkammer tangential in die Wirbelkammer mündet.The present invention relates to a hollow cone nozzle body with at least one nozzle geometry, at least one vortex chamber and at least one vortex channel, wherein the vortex chamber opens tangentially into the vortex chamber.
Bei Hohlkegeldüsenkörpern wird Fluid über einen Wirbelkanal in die Wirbelkammer eingespeist, wobei der Wirbelkanal tangential in die Wirbelkammer mündet. Dadurch wird das Fluid innerhalb der Wirbelkammer in Rotation versetzt, bis es schließlich durch die Düsengeometrie ausgestoßen wird. Während des Ausstoßvorgangs wird das Fluid ausgehend von der Wirbelkammer durch die Düsengeometrie gepresst, wobei das Fluid beim Austritt aus der Düsengeometrie zerstäubt wird. Dadurch entsteht ein Aerosol.In hollow cone nozzle bodies, fluid is fed into the vortex chamber via a vortex channel, with the vortex channel opening tangentially into the vortex chamber. This causes the fluid to rotate within the vortex chamber until it is finally ejected through the nozzle geometry. During the ejection process, the fluid is pressed from the vortex chamber through the nozzle geometry, with the fluid being atomized as it exits the nozzle geometry. This creates an aerosol.
Die Wirbelkammer und die Düsengeometrie können rotationssymmetrisch um eine gemeinsame Achse angeordnet sein. Hierbei spricht man von einer symmetrischen Hohlkegeldüsengeometrie. Alternativ dazu kann die Wirbelkammer asymmetrisch ausgestaltet sein, wobei eine Düsengeometrie am Ende der Wirbelkammer angeordnet ist. Bei einer asymmetrischen Düsengeometrie spricht man von einer asymmetrischen Hohlkegeldüse.The vortex chamber and the nozzle geometry can be arranged rotationally symmetrically around a common axis. This is referred to as a symmetrical hollow cone nozzle geometry. Alternatively, the vortex chamber can be designed asymmetrically, with a nozzle geometry arranged at the end of the vortex chamber. An asymmetrical nozzle geometry is referred to as an asymmetrical hollow cone nozzle.
Die Hohlkegeldüsenkörper werden beispielsweise durch ein Spritzgussverfahren hergestellt. Alternativ dazu können auch durch ein Spritzgussverfahren hergestellte Hohlkegeldüsenrohlinge durch eine Laserbearbeitung hin zu einem Hohlkegeldüsenkörper bearbeitet werden. Durch die Fortschreitung der Genauigkeit und Bearbeitungspräzision sind immer kleinere Abmessungen der einzelnen Geometrien, wie beispielsweise der Düsengeometrie, der Wirbelkammer und/oder des Wirbelkanals möglich. Durch die immer kleiner werdenden Abmessungen kommt es dazu, dass kleine Partikel dazu führen können, dass die Düsengeometrie, die Wirbelkammer und/oder der Wirbelkanal verstopft. Dies führt dazu, dass der Hohlkegeldüsenkörper nicht mehr ordnungsgemäß funktioniert.The hollow cone nozzle bodies are manufactured, for example, by an injection molding process. Alternatively, hollow cone nozzle blanks manufactured by an injection molding process can also be processed by laser to form a hollow cone nozzle body. Due to the advancement of accuracy and machining precision, ever smaller dimensions of the individual geometries, such as the nozzle geometry, the swirl chamber and/or the swirl channel, are possible. Due to the ever smaller dimensions, small particles can lead to the Nozzle geometry, the vortex chamber and/or the vortex channel are clogged. This leads to the hollow cone nozzle body no longer functioning properly.
Dementsprechend ist es Aufgabe der vorliegenden Erfindung, einen Hohlkegeldüsenkörper vorzuschlagen, der eine ordnungsgemäße Verwendung sicherstellt.Accordingly, it is an object of the present invention to propose a hollow cone nozzle body which ensures proper use.
Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.This object is solved by the features of
Dabei weist der wenigstens eine Wirbelkanal wenigstens eine Filteranordnung auf. Durch diese Filteranordnung können Partikel, die sich im Fluid befinden, herausgefiltert werden. Dies führt dazu, dass nachgeordnete fluidführende Geometrien, wie die Wirbelkammer, der Wirbelkanal und/oder die Düsengeometrie nicht mehr durch die herausgefilterten Partikel verstopft werden können. Dadurch kann eine ordnungsgemäße Verwendung des Hohlkegeldüsenkörpers sichergestellt werden.The at least one vortex channel has at least one filter arrangement. This filter arrangement can filter out particles that are in the fluid. This means that downstream fluid-carrying geometries, such as the vortex chamber, the vortex channel and/or the nozzle geometry, can no longer be blocked by the filtered-out particles. This ensures that the hollow cone nozzle body is used properly.
Vorzugsweise ist die wenigstens eine Filteranordnung im Hohlkegeldüsenkörper integriert. Dementsprechend ist die Filteranordnung und der Hohlkegeldüsenkörper einstückig ausgeführt. Dadurch kann die Filteranordnung beispielsweise schon im Rahmen des Herstellungsprozesses des Hohlkegeldüsenkörpers erstellt werden. Dementsprechend wird durch die Verwendung einer erfindungsgemäßen Filteranordnung ein Montageaufwand geringgehalten. Dies führt zu einer guten Kosteneffizienz. Weiterhin müssen bereits existierende Herstellungsverfahren und Prozesse nicht angepasst werden, sondern können auch für die erfindungsgemäße Anordnung einer Filteranordnung im Hohlkegeldüsenkörper genutzt werden. Dementsprechend werden die Montagekosten geringgehalten. Vorzugsweise weist die Filteranordnung wenigstens einen Filterkanal auf. Der Filterkanal ist dabei im Wesentlichen entlang des Wirbelkanals orientiert. Weiterhin weist ein Filterkanal eine längliche Ausdehnung auf, so dass beispielsweise bei hohen Drücken Partikel nicht einfach durch den Filterkanal durchgedrückt werden können. Vielmehr bleiben solche Partikel im Filterkanal hängen, so dass hierdurch eine gute Verwendung des Hohlkegeldüsenkörpers sichergestellt werden kann. Die Filteranordnung kann beispielsweise einen, zwei, drei oder mehr Filterkanäle aufweisen. Werden mehr als ein Filterkanal vorgesehen, so kann, wenn ein Filterkanal verstopft ist, Fluid durch den verbleibenden Filterkanal transferiert werden. Dadurch ist eine Verwendung der Hohlkegeldüsenkörper sichergestellt.Preferably, the at least one filter arrangement is integrated in the hollow cone nozzle body. Accordingly, the filter arrangement and the hollow cone nozzle body are designed as one piece. This means that the filter arrangement can be created, for example, as part of the manufacturing process of the hollow cone nozzle body. Accordingly, the use of a filter arrangement according to the invention keeps assembly costs to a minimum. This leads to good cost efficiency. Furthermore, existing manufacturing methods and processes do not have to be adapted, but can also be used for the inventive arrangement of a filter arrangement in the hollow cone nozzle body. Accordingly, assembly costs are kept low. The filter arrangement preferably has at least one filter channel. The filter channel is essentially oriented along the vortex channel. Furthermore, a filter channel has an elongated extension, so that, for example, at high pressures, particles cannot simply be pushed through the filter channel. Rather, such particles remain stuck in the filter channel, so that good use of the hollow cone nozzle body can be ensured. The filter arrangement can, for example, have one, two, three or more filter channels. If more than one filter channel is provided, fluid can be transferred through the remaining filter channel if one filter channel is blocked. This ensures use of the hollow cone nozzle body.
Vorzugsweise weist der wenigstens eine Filterkanal eine erste Querschnittsfläche auf, die kleiner ist als eine zweite Querschnittsfläche der Düsengeometrie. Die erste Querschnittsfläche bezieht sich dabei auf die Querschnittsfläche eines einzelnen Filterkanals. Dadurch wird verhindert, dass Partikel die Filteranordnung überwinden, um anschließend die Düsengeometrie zu verstopfen. Vielmehr werden Partikel durch die Filteranordnung herausgefiltert, so dass diese Partikel nicht mehr die Düsengeometrie verstopfen können. Dadurch wird eine Verwendung des Hohlkegeldüsenkörpers sichergestellt.Preferably, the at least one filter channel has a first cross-sectional area that is smaller than a second cross-sectional area of the nozzle geometry. The first cross-sectional area refers to the cross-sectional area of an individual filter channel. This prevents particles from overcoming the filter arrangement and then clogging the nozzle geometry. Rather, particles are filtered out by the filter arrangement so that these particles can no longer clog the nozzle geometry. This ensures that the hollow cone nozzle body can be used.
Vorzugsweise weist die Filteranordnung eine dritte Querschnittsfläche auf, die senkrecht zur Flussrichtung angeordnet ist, wobei eine Breite der dritten Querschnittsfläche ein Vielfaches einer Höhe der dritten Querschnittsfläche beträgt, wobei die Breite senkrecht zur Höhe angeordnet ist. Die Flussrichtung entspricht dabei der Fließrichtung des Fluids, das durch die Düsengeometrie ausgestoßen werden soll. Im vorliegenden Fall ist die Filteranordnung im Wirbelkanal angeordnet, so dass die Flussrichtung der Flussrichtung des Wirbelkanals entspricht. Die Breite der dritten Querschnittsfläche entspricht dabei der Gesamtbreite aller Filterkanäle, während die Höhe der Höhe der Filterkanäle entspricht. Dadurch wird eine flächige Anordnung der Filteranordnung erreicht. Diese Anordnung lässt sich einfach herstellen.The filter arrangement preferably has a third cross-sectional area that is arranged perpendicular to the flow direction, wherein a width of the third cross-sectional area is a multiple of a height of the third cross-sectional area, wherein the width is arranged perpendicular to the height. The flow direction corresponds to the flow direction of the fluid that is to be ejected through the nozzle geometry. In the present case, the filter arrangement is arranged in the vortex channel, so that the flow direction corresponds to the flow direction of the vortex channel. The width of the third cross-sectional area corresponds to the total width of all filter channels, while the height corresponds to the height of the filter channels. As a result, a flat arrangement of the filter arrangement is achieved. This arrangement is easy to produce.
Vorzugsweise schließt die Filteranordnung mit einer oberen Begrenzung des wenigstens einen Wirbelkanals ab. Somit ist die Filteranordnung in dem wenigstens einen Wirbelkanal integriert. Dadurch wird eine gute Dichtigkeit erreicht. Weiterhin können weitere Bauteile eines Hohlkegeldüsensprays verwendet werden, ohne diese anpassen zu müssen. Dadurch wird eine gute Wirtschaftlichkeit erreicht.The filter arrangement preferably ends at an upper boundary of the at least one vortex channel. The filter arrangement is thus integrated in the at least one vortex channel. This ensures good sealing. Furthermore, other components of a hollow cone nozzle spray can be used without having to adapt them. This ensures good economic efficiency.
Vorzugsweise ist der wenigstens eine Wirbelkanal im Bereich der Filteranordnung breiter als in den verbleibenden Bereichen des wenigstens einen Filterkanals. Dadurch kann die Filteranordnung entsprechend dimensioniert werden, um weiterhin eine gute Fluiddurchlässigkeit zu gewährleisten. Außerdem wird ein Fluidwiderstand, der durch die Filteranordnung verursacht wird, geringgehalten. Dadurch wird auch eine uneingeschränkte Verwendung des Hohlkegeldüsenkörpers erreicht.Preferably, the at least one vortex channel is wider in the area of the filter arrangement than in the remaining areas of the at least one filter channel. This allows the filter arrangement to be dimensioned accordingly to continue to ensure good fluid permeability. In addition, fluid resistance caused by the filter arrangement is kept low. This also allows unrestricted use of the hollow cone nozzle body.
Vorzugsweise ist die Filteranordnung durch ein Spritzgussverfahren und/oder eine Laserbearbeitung herstellbar. Dadurch kann die Filteranordnung im Rahmen der bereits bekannten Herstellungsmöglichkeiten von Hohlkegeldüsenkörpern realisiert werden. Dies stellt eine kostengünstige Maßnahme dar.The filter arrangement can preferably be manufactured by an injection molding process and/or laser processing. This means that the filter arrangement can be realized within the scope of the already known manufacturing options for hollow cone nozzle bodies. This represents a cost-effective measure.
Die Erfindung wird im Folgenden anhand eines bevorzugten Ausführungsbeispiels in Verbindung mit der Zeichnung beschrieben. Hierin zeigen:
- Fig. 1
- eine schematische Draufsicht auf einen Hohlkegeldüsenkörper mit Blick auf die Wirbelkammer,
- Fig. 2
- eine Schnittdarstellung eines Hohlkegeldüsenkörpers entlang der Linie A-A,
- Fig. 3
- eine Detaildarstellung der in
Fig. 1 gezeigten Filteranordnung, und - Fig. 4
- eine Schnittdarstellung der in
Fig. 3 dargestellten Filteranordnung.
- Fig.1
- a schematic plan view of a hollow cone nozzle body with a view of the vortex chamber,
- Fig.2
- a sectional view of a hollow cone nozzle body along the line AA,
- Fig.3
- a detailed representation of the
Fig.1 shown filter arrangement, and - Fig.4
- a sectional view of the
Fig. 3 shown filter arrangement.
Der wenigstens eine Filterkanal 7 weist eine erste Querschnittsfläche auf, die kleiner ist als eine zweite Querschnittsfläche der Düsengeometrie. Die erste Querschnittsfläche entspricht dabei der Fläche, durch die Fluid geführt wird. Die zweite Querschnittsfläche entspricht ebenfalls einer Fläche, durch die Fluid transferiert werden kann. Dabei ist die zweite Querschnittsfläche die kleinste Querschnittsfläche der Düsengeometrie. Dadurch, dass die erste Querschnittsfläche kleiner ist als die zweite Querschnittsfläche, werden Partikel, die die zweite Querschnittsfläche respektive die Düsengeometrie 2 verstopfen könnten, bereits frühzeitig durch die Filteranordnung 5 herausgefiltert.The at least one filter channel 7 has a first cross-sectional area that is smaller than a second cross-sectional area of the nozzle geometry. The first cross-sectional area corresponds to the area through which fluid is guided. The second cross-sectional area also corresponds to an area through which fluid can be transferred. The second cross-sectional area is the smallest cross-sectional area of the nozzle geometry. Because the first cross-sectional area is smaller than the second cross-sectional area, particles that could clog the second cross-sectional area or the
Durch die spalten- bzw. zeilenweise Anordnung der einzelnen Fluidkanäle 7 nebeneinander kann die Filteranordnung 5 bereits im Herstellverfahren des Hohlkegeldüsenkörpers 1 integriert werden. Der Hohlkegeldüsenkörper 1 kann beispielsweise vollumfänglich durch ein Spritzgussverfahren hergestellt werden. Alternativ dazu kann der Hohlkegeldüsenkörper 1 zunächst als Hohlkegeldüsenrohling ausgestaltet werden, der anschließend durch eine Laserbearbeitung hin zu einem Hohlkegeldüsenkörper 1 bearbeitet wird. Der Wirbelkanal 4 des vorliegenden Ausführungsbeispiels weist eine kleinere Breite als die Filteranordnung 5 auf. Dadurch können mehrere Filterkanäle 7 nebeneinander angeordnet werden, um einen benötigten Durchfluss des Fluids zu gewährleisten.Due to the column- or row-wise arrangement of the individual fluid channels 7 next to each other, the
- 11
- HohlkegeldüsenkörperHollow cone nozzle body
- 22
- DüsengeometrieNozzle geometry
- 33
- WirbelkammerVortex chamber
- 44
- WirbelkanalSpinal canal
- 55
- FilteranordnungFilter arrangement
- 66
- AusstoßvertiefungEjection recess
- 77
- FilterkanalFilter channel
- 88th
- Oberflächesurface
- BB
- Breite eines dritten QuerschnittsWidth of a third cross section
- HH
- Höhe eines dritten QuerschnittsHeight of a third cross section
Claims (8)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102022134681.1A DE102022134681A1 (en) | 2022-12-23 | 2022-12-23 | Filter for hollow cone nozzle bodies |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4389295A1 true EP4389295A1 (en) | 2024-06-26 |
Family
ID=89030122
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP23213377.7A Pending EP4389295A1 (en) | 2022-12-23 | 2023-11-30 | Filter for a hollow conical nozzle body |
Country Status (3)
Country | Link |
---|---|
US (1) | US20240207872A1 (en) |
EP (1) | EP4389295A1 (en) |
DE (1) | DE102022134681A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004008951A (en) * | 2002-06-07 | 2004-01-15 | Mitani Valve Co Ltd | Ejection button |
US20070215723A1 (en) * | 2006-03-07 | 2007-09-20 | Boehringer Ingelheim International Gmbh | Swirl nozzle |
WO2010076012A1 (en) * | 2009-01-02 | 2010-07-08 | Boehringer Ingelheim International Gmbh | Component and inhaler and method for producing a component |
US20140291423A1 (en) * | 2013-03-29 | 2014-10-02 | Bowles Fluidics Corporation | Cup-shaped Nozzle Assembly with Integral Filter Structure |
WO2019068878A1 (en) * | 2017-10-06 | 2019-04-11 | WERRTA GmbH Düsen- und Zerstäubungstechnik | Nozzle body and spraying device |
JP6960292B2 (en) * | 2016-09-28 | 2021-11-05 | 株式会社丸一 | Spray mechanism nozzle structure |
-
2022
- 2022-12-23 DE DE102022134681.1A patent/DE102022134681A1/en active Pending
-
2023
- 2023-11-30 EP EP23213377.7A patent/EP4389295A1/en active Pending
- 2023-12-21 US US18/391,782 patent/US20240207872A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004008951A (en) * | 2002-06-07 | 2004-01-15 | Mitani Valve Co Ltd | Ejection button |
US20070215723A1 (en) * | 2006-03-07 | 2007-09-20 | Boehringer Ingelheim International Gmbh | Swirl nozzle |
WO2010076012A1 (en) * | 2009-01-02 | 2010-07-08 | Boehringer Ingelheim International Gmbh | Component and inhaler and method for producing a component |
US20140291423A1 (en) * | 2013-03-29 | 2014-10-02 | Bowles Fluidics Corporation | Cup-shaped Nozzle Assembly with Integral Filter Structure |
JP6960292B2 (en) * | 2016-09-28 | 2021-11-05 | 株式会社丸一 | Spray mechanism nozzle structure |
WO2019068878A1 (en) * | 2017-10-06 | 2019-04-11 | WERRTA GmbH Düsen- und Zerstäubungstechnik | Nozzle body and spraying device |
Also Published As
Publication number | Publication date |
---|---|
US20240207872A1 (en) | 2024-06-27 |
DE102022134681A1 (en) | 2024-07-04 |
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