EP0775023B1 - Spraying nozzle for regulating a rate of flow per unit of time - Google Patents
Spraying nozzle for regulating a rate of flow per unit of time Download PDFInfo
- Publication number
- EP0775023B1 EP0775023B1 EP94914532A EP94914532A EP0775023B1 EP 0775023 B1 EP0775023 B1 EP 0775023B1 EP 94914532 A EP94914532 A EP 94914532A EP 94914532 A EP94914532 A EP 94914532A EP 0775023 B1 EP0775023 B1 EP 0775023B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- channels
- spray nozzle
- loop forming
- channel
- forming channel
- 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.)
- Revoked
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
- B05B7/0425—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid without any source of compressed gas, e.g. the air being sucked by the pressurised liquid
Definitions
- the present invention relates to a spray nozzle for regulating the flow rate per unit of time, consisting of a nozzle sleeve and a nozzle core, which is mounted inside the nozzle sleeve.
- a spray nozzle for regulating the flow rate per unit of time, consisting of a nozzle sleeve and a nozzle core, which is mounted inside the nozzle sleeve.
- Such spray nozzles can be used, inter alia, in mechanical spray systems, such as, for example, in atomizer pumps or spray cans which use compressed gases such as air or nitrogen as the driving force, or soluble gases such as CO 2 or N 2 O
- the spray nozzle according to the invention in addition to fine atomization of liquids, the output quantity per unit of time also remains at least approximately constant and this, although the pressure drops when the aforementioned gases are used, during the emptying of the can.
- EP-A-0.000.688 describes a spray nozzle which includes the features of the preamble of claim 1. With this spray nozzle feed channels open Concentric channels, the confluence of all feed channels in the concentric channels always take place in the same direction of rotation. With this arrangement the droplet size cannot be kept sufficiently small, especially when higher can pressure.
- this object is achieved by a spray nozzle for regulating the flow rate per unit of time solved, which is characterized in that feed channels open into the first feed channels that run in one direction feed a first rotary channel lying that from this in the opposite direction to the previous one Direction of rotation, open out at least second feed channels and communicate with a hole.
- the second feed channels connected to the inside at least with a second rotary channel be at least by means of third feed channels is connected to an inner ring channel, which is connected to the bore, the opposite on Feed channels arranged on the sides of a rotary channel in the opposite direction at an angle to the radial direction run.
- An advantageous embodiment is characterized in that that the first round channel is a heptagon, while the second concentric channel forms a pentagon that the first rotary channel with seven first feed channels and the second rotary channel with five second feed channels is fed and that, by the second round channel opening, three third designed as tangential channels Open the feed channels into the ring channel.
- This arrangement results in a particularly effective way of working and an original structure.
- the first rotary channel with constrictions to which, essentially standing perpendicular to them, air ducts are provided, which are connected to the outside air through holes.
- turbulent flow is a Liquid downstream leads to a drop in pressure, where the wall texture of a pipe and the speed play a role in the current. Further cause angular distractions by creating turbulence to a greater reduction in pressure than articulations with one Radius.
- the spray nozzle according to the invention is designed that by means of brusque changes in flow direction a pressurized liquid that causes turbulence, on the one hand the output quantity per unit of time influence in such a way that they are, at least approximately constant remains and the other hand, by means of an extremely violent splitting of the liquid, this atomized very finely.
- This will finely atomize the surface Liquid larger than that, the coarser droplets have, as is the case with the known spray nozzles is.
- This larger droplet surface leads to a faster evaporation, extremely important when using of water as a solvent.
- Fig. 1 shows the inside of a nozzle sleeve, the Has feed channels 2, via which a not shown Liquid enters feed channels 3, which in a large Rotary channel 4 open.
- the inlet direction of the feed channels 3 is selected here in a clockwise direction.
- feed ducts 5 run, this time clockwise, in the direction of a small rotary channel 6.
- a ring channel 7 In the center of the nozzle sleeve 1 is a ring channel 7, in which, this time again in reverse Clockwise, open tangential channels 8.
- a bead 10 To the Bore 9 of the nozzle sleeve 1 is a bead 10, which has the most beneficial effect on the splitting of a liquid.
- the nozzle sleeve 1 is provided with a recess 11, to distribute a liquid, not shown to the feed channels 2.
- FIG. 3 shows an output element 12 with a core 13, which is mounted in the nozzle sleeve 1.
- the core is 13 provided with a cavity 14 which is in the direction of escape with a bore 15 of the output element 12.
- Of the Cavity 14 serves to deform the end face of the Core 13 to avoid when the output element 12 in Injection molding process is made for the face
- the core 13 must be as level as possible around the feed channels 3 and 5, the concentric channels 4 and 6, the tangential channels 8 and to cover the ring channel 7 so that these become lines and any sloshing out the channels is avoided.
- the output element is provided with a main channel 16, from the bores 17 and 18 into the recess 11 the nozzle sleeve 1 open, from where a not shown Liquid through the different channels of the nozzle sleeve 1 reaches their bore 9 and atomizes there is expelled.
- FIG. 4 shows an extremely advantageous embodiment the spray nozzle according to the invention. It shows the Inside time of a nozzle sleeve 19 with a depression 20.
- the nozzle sleeve 19 has a large hexagonal Rotary channel 21 on, in the corners, here in reverse Clockwise, feed channels 22 open in the direction of escape lie with the sides of the large rotary duct 21.
- Downstream is a small, pentagonal one Rundlaufkanal 23, in its corners, from the large Rundlaufkanal 21 coming this time clockwise, feed channels 24 flow out in the direction of escape with the sides of the small Rotary channel 23 are.
- feed channels 26 In a central ring channel 25 open, again in a clockwise direction, from coming small round channel, feed channels 26, one Form tangent with the ring channel 25.
- the depth of the nozzle sleeve is chosen so that they have the cavity 14 of the nozzle core 13 and the bore 15 of the output element 13 hermetically seals, so that there can be no leak.
- FIG. 5 shows an embodiment of the invention Spray nozzle whose nozzle sleeve 27 a large one Has concentric channel 28, which is provided with constrictions 29 is in which, perpendicular to them, air channels 30 open out through holes 31 in connection with the outside air stand.
- These constrictions 29 realize one VENTURI effect, one accelerated by the constrictions 29 flowing liquid, via the air channels 30 and whose holes 31 sucks in outside air and with the Liquid mixed, after which the sucked air in the subsequent smaller channels compressed in the liquid so that it leaves 9 explosive in contact with atmospheric pressure relaxes and so the already mechanically atomized liquid burst into even smaller droplets.
- the spray nozzle according to the invention is of course not limited to use in an output element 12. It can be used wherever there is a liquid must be atomized under a variable Under pressure, such as Sprinklers, fire engines etc., where then an independent nozzle core 13 in a nozzle sleeve 1 is pressed, which then together in a pipe part are stored on pipe or hose lines can be connected.
- the Spray nozzle first feed channels in one direction feed a first rotary channel lying flat, and only a second one Feeders from this in reverse direction open to the previous direction of rotation and with the Exit bore are in communication.
- the spray nozzle with more than three nested Feeder channel families and more than two rotary channels Mistake.
Landscapes
- Nozzles (AREA)
- Catching Or Destruction (AREA)
- Fertilizing (AREA)
- Spray Control Apparatus (AREA)
- Feeding And Controlling Fuel (AREA)
- Massaging Devices (AREA)
Abstract
Description
Vorliegende Erfindung hat zum Gegenstand eine Spritzdüse für die Regulierung der Durchflussmenge pro Zeiteinheit, bestehend aus einer Düsenhülse und einem Düsenkern, der im Innern der Düsenhülse gelagert ist. Solche Spritzdüsen können u.a. bei mechanischen Spraysystemen eingesetzt werden, wie z.B. bei Zerstäuberpumpen oder Spraydosen, die als Treibkraft komprimierte Gase wie Luft oder Stickstoff, oder lösliche Gase wie CO2 oder N2O verwenden, wobei die erfindungsgemässe Spritzdüse, neben einer Feinstzerstäubung von Flüssigkeiten, auch die Ausstossmenge pro Zeiteinheit zumindest annähernd konstant hält und dies, obwohl der Druck, bei Verwendung der vorgenannten Gase, während der Entleerung der Dose sinkt.The present invention relates to a spray nozzle for regulating the flow rate per unit of time, consisting of a nozzle sleeve and a nozzle core, which is mounted inside the nozzle sleeve. Such spray nozzles can be used, inter alia, in mechanical spray systems, such as, for example, in atomizer pumps or spray cans which use compressed gases such as air or nitrogen as the driving force, or soluble gases such as CO 2 or N 2 O, the spray nozzle according to the invention, in addition to fine atomization of liquids, the output quantity per unit of time also remains at least approximately constant and this, although the pressure drops when the aforementioned gases are used, during the emptying of the can.
Das Bewusstwerden der Notwendigkeit, die Umwelt zu schonen, also zu schützen, führt u.a. zur Fragestellung, ob man nicht einen Grossteil der z.Zt. eingesetzten Lösungsmittel, wie Alkohole, Kohlenwasserstoffe, Trichloräthylen, 1.1.1. Trichloräthan usw. mit Wasser ersetzen und statt Flüssiggase als Treibkraft nur Druckluft verwenden kann.Awareness of the need to protect the environment protect, i.e. protect, leads among other things to the question, whether you can’t solvents used, such as alcohols, hydrocarbons, trichlorethylene, 1.1.1. Replace trichloroethane etc. with water and Use only compressed air as the driving force instead of liquid gases can.
Bekannterweise führt Druckluft zu einer Druckminderung in einer Dose durch das beim Entleeren immer grösser werdende Leervolumen der Dose. Es gibt komplexe Regelsysteme, die diesen Nachteil zum grössten Teil ausschalten, aber die bei der Massenherstellung zu Problemen, wie Montagetaktzeiten oder Präzisionsmangel führen.As is known, compressed air leads to a reduction in pressure in a can due to the increasing in size when emptying Empty volume of the can. There are complex control systems who largely eliminate this disadvantage, but problems with mass production such as assembly cycle times or lack of precision.
Wasser verdunstet nur langsam bei einer Tröpfchengrösse von mehr als 50 Mikron, Grösse, die bisher nur mit Hochpräzisionsdüsen mit mechanischer Aufspaltung erreicht wird, was aber schon als sehr fein bewertet werden muss, aber nicht diejenige Tröpfchengrösse erreicht, die aus der explosionsartigen Entspannung von Flüssiggas wie Propan, Butan oder Dimethyläther im Kontakt mit dem atmosphärischen Druck resultiert.Water evaporates slowly with a droplet size of more than 50 microns, size that was previously only available with High precision nozzles with mechanical splitting achieved will, which must be rated as very fine, but does not reach the droplet size that results from the explosive expansion of liquid gas such as propane, Butane or dimethyl ether in contact with the atmospheric Pressure results.
In der EP-A-0.000.688 ist eine Spritzdüse beschrieben, die die Merkmale des Oberbegriffs von Anspruch 1 beinhaltet. Bei dieser Spritzdüse münden Speisekanäle in Rundlaufkanäle, wobei die Einmündung aller Speisekanäle in die Rundlaufkanäle stets in derselben Drehrichtung erfolgt. Mit dieser Anordnung kann die Tröpfchengrösse nicht genügend klein gehalten werden und dies insbesondere bei grösserem Dosendruck.EP-A-0.000.688 describes a spray nozzle which includes the features of the preamble of claim 1. With this spray nozzle feed channels open Concentric channels, the confluence of all feed channels in the concentric channels always take place in the same direction of rotation. With this arrangement the droplet size cannot be kept sufficiently small, especially when higher can pressure.
Es ist die Aufgabe der erfindungsgemässen Spritzdüse einerseits, 70% der Gesamtausstossmenge pro Zeiteinheit mit einer Tröpfchengrösse von weniger als 40 Mikron abzugeben und andererseits, das Sinken der Ausstossmenge vom höchsten bis zum tiefsten Dosendruck so gering wie möglich zu halten, vorzugsweise weniger als 20% Prozentsatz, den man auch bei den herkömmlichen Aerosoldosen mit Flüssiggas findet.It is the task of the spray nozzle according to the invention on the one hand, 70% of the total output per unit of time dispense with a droplet size of less than 40 microns and on the other hand, the decrease in the amount of emissions from highest to lowest can pressure as low as possible hold, preferably less than 20% percentage one also with the conventional aerosol cans with liquid gas finds.
Erfindungsgemäss wird diese Aufgabe durch eine Spritzdüse für die Regulierung der Durchflussmenge pro Zeiteinheit gelöst, die dadurch gekennzeichnet ist, dass Zuführkanäle in erste Speisekanäle münden, die in einer Drehrichtung liegend einen ersten Rundlaufkanal speisen, dass von diesem in umgekehrter Drehrichtung zur vorangehenden Drehrichtung, zumindest zweite Speisekanäle ausmünden und mit einer Bohrung in Verbindung stehen.According to the invention, this object is achieved by a spray nozzle for regulating the flow rate per unit of time solved, which is characterized in that feed channels open into the first feed channels that run in one direction feed a first rotary channel lying that from this in the opposite direction to the previous one Direction of rotation, open out at least second feed channels and communicate with a hole.
Vorteilhafterweise können die zweiten Speisekanäle gegen innen zumindest mit einem zweiten Rundlaufkanal verbunden sein, der zumindest mittels dritten Speisekanälen mit einem inneren Ringkanal in Verbindung steht, welcher mit der Bohrung verbunden ist, wobei die auf entgegengesetzten Seiten eines Rundlaufkanals angeordneten Speisekanäle in entgegengesetzer Richtung schrägwinklig zur Radialrichtung verlaufen.Advantageously, the second feed channels connected to the inside at least with a second rotary channel be at least by means of third feed channels is connected to an inner ring channel, which is connected to the bore, the opposite on Feed channels arranged on the sides of a rotary channel in the opposite direction at an angle to the radial direction run.
Dadurch wird eine besonders kleine Tröpfchengrösse und eine möglichst konstante Durchflussmenge erreicht.This makes a particularly small droplet size and the flow rate is as constant as possible.
Eine vorteilhafte Ausführungsform ist dadurch gekennzeichnet, dass der erste Rundlaufkanal ein Siebeneck ist, während der zweite Rundlaufkanal ein Fünfeck bildet, dass der erste Rundlaufkanal mit sieben ersten Speisekanälen und der zweite Rundlaufkanal mit fünf zweiten Speisekanälen gespiesen wird und dass, vom zweiten Rundlaufkanal ausmündend, drei als Tangentialkanäle ausgebildete dritte Speisekanäle in den Ringkanal einmünden.An advantageous embodiment is characterized in that that the first round channel is a heptagon, while the second concentric channel forms a pentagon that the first rotary channel with seven first feed channels and the second rotary channel with five second feed channels is fed and that, by the second round channel opening, three third designed as tangential channels Open the feed channels into the ring channel.
Diese Anordnung ergibt eine besonders wirksame Arbeitsweise und einen originellen Aufbau.This arrangement results in a particularly effective way of working and an original structure.
In einer Variante ist zumindest der erste Rundlaufkanal mit Verengungen versehen, zu denen, im wesentlichen senkrecht zu ihnen stehend, Luftkanäle vorgesehen sind, die mit der Aussenluft über Bohrungen in Verbindung stehen.In one variant, there is at least the first rotary channel with constrictions to which, essentially standing perpendicular to them, air ducts are provided, which are connected to the outside air through holes.
Bedingt durch ein Ansaugen der Aussenluft unter VENTURI-Effekt wird eine hohe Zerstäubung erreicht.Due to a suction of the outside air under VENTURI effect high atomization is achieved.
Der Erfindungsgegenstand wird nachstehend ausführlich beschrieben und mit vorteilhaften, nicht einschränkenden Ausführungsbeispielen bildlich dargestellt.The subject matter of the invention will be described in detail below described and with advantageous, non-limiting Illustrated embodiments.
Dabei zeigt die Zeichnung in:
- Fig. 1
- eine Frontansicht einer erfindungsgemässen Spritzdüse in einer Düsenhülse gelagert,
- Fig. 2
- eine Schnittansicht der Spritzdüse gemäss Fig. 1,
- Fig. 3
- eine Schnittansicht eines Ausgabeelementes, eine erfindungsgemässe Spritzdüse enthaltend,
- Fig. 4
- eine Frontansicht einer anderen Ausführungsform einer erfindungsgemässen Spritzdüse,
- Fig. 5
- eine Frontansicht einer erfindungsgemässen Spritzdüse, die Aussenluft ansaugt,
- Fig. 6
- eine Schnittansicht der Spritzdüse gemäss Fig. 5.
- Fig. 1
- 2 shows a front view of a spray nozzle according to the invention stored in a nozzle sleeve,
- Fig. 2
- 2 shows a sectional view of the spray nozzle according to FIG. 1,
- Fig. 3
- 2 shows a sectional view of a dispensing element containing an inventive spray nozzle,
- Fig. 4
- 2 shows a front view of another embodiment of a spray nozzle according to the invention,
- Fig. 5
- 2 shows a front view of a spray nozzle according to the invention which draws in outside air,
- Fig. 6
- 5 shows a sectional view of the spray nozzle according to FIG. 5.
Es ist bekannt, dass ein turbulentes Fliessen einer Flüssigkeit stromabwärts zu einer Drucksenkung führt, wobei die Wandbeschaffenheit einer Leitung und die Geschwindigkeit der Strömung eine Rolle spielen. Ferner führen winklige Ablenkungen durch Bildung von Turbulenzen zu einer grösseren Drucksenkung als Anlenkungen mit einem Radius.It is known that turbulent flow is a Liquid downstream leads to a drop in pressure, where the wall texture of a pipe and the speed play a role in the current. Further cause angular distractions by creating turbulence to a greater reduction in pressure than articulations with one Radius.
Da die Geschwindigkeit einer Strömung vom Druck abhängig ist, unter dem eine Flüssigkeit steht und eine hohe Geschwindigkeit zu einer hohen Drucksenkung und eine kleinere Geschwindigkeit zu einer nicht mehr so hohen Drucksenkung führt, kann man daraus schliessen, dass die Resultate "Ausstossmenge einer Flüssigkeit in Zeiteinheit" bei hohem Druck, also hoher Geschwindigkeit, wegen der daraus resultierenden Drucksenkung nicht grösser ist als diejenige, die aus einer Geschwindigkeitsminderung und somit Drucksenkung resultiert, sodass es, trotz Sinken des Druckes, unter dem eine Flüssigkeit steht, zu einer praktisch konstantbleibenden Ausstossmenge pro Zeiteinheit kommt.Because the speed of a flow depends on the pressure is under which there is a liquid and a high one Speed to a high pressure drop and a smaller one Speed to a lower pressure drop leads one to conclude that the results "Ejection quantity of a liquid in unit time" high pressure, so high speed, because of the result resulting pressure drop is not greater than that that from a slowdown and thus Pressure drop results, so that, despite the sinking of the Pressure, under which a liquid stands, to a practical constant output per unit of time is coming.
Die erfindungsgemässe Spritzdüse ist so konzipiert, dass sie mittels brüsken Änderungen der Strömungsrichtung einer unter Druck stehenden Flüssigkeit, Turbulenzen hervorruft, die einerseits die Ausstossmenge pro Zeiteinheit derart beeinflussen, dass sie, zumindest annähernd konstant bleibt und die andererseits, mittels einem äusserst heftigen Aufspalten der Flüssigkeit, diese feinst zerstäubt. Dadurch wird die Oberfläche der fein zerstäubten Flüssigkeit grösser als diejenige, die gröbere Tröpfchen aufweisen, wie dies bei den bekannten Spritzdüsen der Fall ist. Diese grössere Tropfchenoberfläche führt zu einer schnelleren Verdunstung, äusserst wichtig bei der Verwendung von Wasser als Lösungsmittel.The spray nozzle according to the invention is designed that by means of brusque changes in flow direction a pressurized liquid that causes turbulence, on the one hand the output quantity per unit of time influence in such a way that they are, at least approximately constant remains and the other hand, by means of an extremely violent splitting of the liquid, this atomized very finely. This will finely atomize the surface Liquid larger than that, the coarser droplets have, as is the case with the known spray nozzles is. This larger droplet surface leads to a faster evaporation, extremely important when using of water as a solvent.
Die Fig. 1 zeigt die Innenseite einer Düsenhülse, die
Zuführkanäle 2 aufweist, über die eine nicht dargestellte
Flüssigkeit in Speisekanäle 3 gelangt, die in einen grossen
Rundlaufkanal 4 münden. Der Einlaufsinn der Speisekanäle
3 ist hier in umgekehrtem Uhrzeigersinn gewählt.
Aus dem Rundlaufkanal 4 ausmündend, laufen Speisekanäle 5,
diesmal im Uhrzeigersinn, in Richtung eines kleinen Rundlaufkanals
6. Im Zentrum der Düsenhülse 1 befindet sich
ein Ringkanal 7, in welchen, diesmal wiederum im umgekehrten
Uhrzeigersinn, Tangentialkanäle 8 einmünden. Um die
Bohrung 9 der Düsenhülse 1 befindet sich eine Wulst 10,
die die Aufspaltung einer Flüssigkeit günstigst beeinflusst.
Die Düsenhülse 1 ist mit einer Vertiefung 11 versehen,
die zur Verteilung einer nicht dargestellten Flüssigkeit
zu den Zuführkanälen 2 dient.Fig. 1 shows the inside of a nozzle sleeve, the
Die Fig. 3 zeigt ein Ausgabeelement 12 mit einem Kern
13, der in der Düsenhülse 1 gelagert ist. Der Kern 13 ist
mit einem Hohlraum 14 versehen, der sich in Fluchtrichtung
mit einer Bohrung 15 des Ausgabeelementes 12 befindet. Der
Hohlraum 14 dient dazu, eine Verformung der Stirnseite des
Kern 13 zu vermeiden, wenn das Ausgabeelement 12 im
Spritzgussverfahren hergestellt wird, denn die Stirnseite
des Kerns 13 muss so eben wie möglich sein, um die Speisekanäle
3 und 5, die Rundlaufkanäle 4 und 6, die Tangentialkanäle
8 und den Ringkanal 7 so zu verdecken, dass
diese zu Leitungen werden und jegliches Ueberschwappen aus
den Kanälen vermieden wird.3 shows an
Das Ausgabeelement ist mit einem Hauptkanal 16 versehen,
von dem Bohrungen 17 und 18 in die Vertiefung 11
der Düsenhülse 1 münden, von wo aus eine nicht dargestellte
Flüssigkeit über die verschiedenen Kanäle der Düsenhülse
1 bis zu deren Bohrung 9 gelangt und dort zerstäubt
ausgestossen wird.The output element is provided with a
Die Figur 4 zeigt eine äusserst vorteilhafte Ausführungsform
der erfindungsgemässen Spritzdüse. Sie zeigt die
Innenzeite einer Düsenhülse 19 mit einer Vertiefung 20.
Die Düsenhülse 19 weist einen grossen siebeneckigen
Rundlaufkanal 21 auf, in dessen Ecken, hier in umgekehrtem
Uhrzeigersinn, Speisekanäle 22 einmünden, die in Fluchtrichtung
mit den Seiten des grossen Rundlaufkanals 21 liegen.
Stromabwärts befindet sich ein kleiner, fünfeckiger
Rundlaufkanal 23, in dessen Ecken, vom grossen Rundlaufkanal
21 diesmal im Uhrzeigersinn kommend, Speisekanäle 24
einmünden, die in Fluchtrichtung mit den Seiten des kleinen
Rundlaufkanals 23 liegen. In einen zentralen Ringkanal
25 münden, wiederum in umgekehrtem Uhrzeigersinn, vom
kleinen Rundlaufkanal kommend, Speisekanäle 26, die eine
Tangente mit dem Ringkanal 25 bilden. FIG. 4 shows an extremely advantageous embodiment
the spray nozzle according to the invention. It shows the
Inside time of a
Allgemein ist die Tiefe der Düsenhülse so gewählt,
dass sie den Hohlraum 14 des Düsenkerns 13 und die Bohrung
15 des Ausgabeelementes 13 hermetisch verschliesst, sodass
dort kein Leck enstehen kann.In general, the depth of the nozzle sleeve is chosen so
that they have the cavity 14 of the
Die Fig. 5 zeigt eine Ausführungsform der erfindungsgemässen
Spritzdüse deren Düsenhülse 27 einen grossen
Rundlaufkanal 28 aufweist, der mit Verengungen 29 versehen
ist, in welche, senkrecht zu ihnen stehend Luftkanäle 30
münden, die über Bohrungen 31 mit der Aussenluft in Verbindung
stehen. Diese Verengungen 29 verwirklichen einen
VENTURI-Effekt, wobei eine durch die Verengungen 29 beschleunigt
fliessende Flüssigkeit, über die Luftkanäle 30
und deren Bohrungen 31 Aussenluft ansaugt und mit der
Flüssigkeit vermischt, wonach die angesaugte Luft in den
nachfolgenden kleineren Kanälen in der Flüssigkeit komprimiert
wird, sodass sie sich beim Verlassen der Bohrung 9
im Kontakt mit dem atmosphärischen Druck explosionsartig
entspannt und so die bereits mechanisch zerstäubte Flüssigkeit
in noch kleinere Tröpfchen zersprengt.5 shows an embodiment of the invention
Spray nozzle whose nozzle sleeve 27 a large one
Has
Statt die Luftkanäle auf der Stirnseite der Düsenhülse
27 über die Bohrungen 31 ausmünden zu lassen, kann man die
Luftkanäle 30 axial so verlängern, wie es die gestrichelten
Linien 32 zeigen und diese dann mit senkrecht zu ihnen
stehenden Kanälen 33 verbinden, die mit der Aussenluft in
Verbindung stehen.Instead of the air channels on the face of the
Die erfindungsgemässe Spritzdüse ist natürlich nicht
auf die Verwendung in einem Ausgabeelement 12 beschränkt.
Sie kann überall dort eingesetzt werden, wo eine Flüssigkeit
zerstäubt werden muss, die unter einem variablen
Druck stehen, wie z.B. Berieselungsanlagen, Feuerwehrspritzen
usw., wobei dann ein unabhängiger Düsenkern 13 in
eine Düsenhülse 1 eingepresst ist, die dann zusammen in
einem Rohrteil gelagert sind, das an Rohr- oder Schlauchleitungen
angeschlossen werden kann.The spray nozzle according to the invention is of course not
limited to use in an
In einer vereinfachten Ausführungsart weist die Spritzdüse erste Speisekanäle, die in einer Drehrichtung liegend einen ersten Rundlaufkanal speisen, und nur zweite Speisekanäle, die von diesem in umgekehrter Drehrichtung zur vorangehenden Drehrichtungen ausmünden und mit der Ausgangsbohrung in Verbindung stehen. In dieser Ausführungsart bestehen also nur zwei Speisekanalfamilien, wobei die innere über einen Ringkanal oder direkt mit der Bohrung verbunden sein kann.In a simplified embodiment, the Spray nozzle first feed channels in one direction feed a first rotary channel lying flat, and only a second one Feeders from this in reverse direction open to the previous direction of rotation and with the Exit bore are in communication. In this embodiment there are only two feeder channel families, the inner one via a ring channel or directly with the Hole can be connected.
Für gewisse Anwendungen kann es auch vorteilhaft sein, die Spritzdüse mit mehr als drei ineinander angeordnete Speisekanalfamilien und mehr als zwei Rundlaufkanäle zu versehen.For certain applications it can also be advantageous the spray nozzle with more than three nested Feeder channel families and more than two rotary channels Mistake.
Claims (11)
- A spray nozzle for the control of a flow rate per unit of time, comprised of a nozzle housing (1, 19, 27) and of a nozzle body (13) housed inside the nozzle housing (1, 19, 27), characterised in that supply channels (2) open into first feed channels (3, 22), which are arranged along a first direction of rotation to feed a first loop forming channel (4, 21) opening in a direction opposite to the previous direction of rotation on at least two feed channels (5, 24) in communication with a bore (9).
- A spray nozzle according to claim 1, characterised in that the second feed channels (5, 24) are in communication, by their inner side, with at least one second loop forming channel (6, 23), which is in communication by at least third feed channels (8, 26) with an inner annular channel (7, 25), which is in communication with the bore (9), the feed channels on the opposite sides of the loop forming channel being arranged in opposite directions, while forming an angle with the radial direction.
- A spray nozzle according to claim 2, characterised in that the feed channels are substantially tangential with respect to the annular channel and/or the loop forming channel.
- A spray nozzle according to claim 1, characterised in that the nozzle body (13) is integral with an output member (12) and in that it is covered by the nozzle housing (1, 19, 27), the nozzle body (13) exhibiting an empty space (14), which is closed hermetically by the nozzle housing (1, 19 27) against the outside air.
- A spray nozzle according to claim 4, characterised in that the output member (12) exhibits a bore (15) which is aligned with the hollow space (14) of the nozzle body (13).
- A spray nozzle according to claim 2, characterised in that the first loop forming channel (21) is heptagonal, whereas the second loop forming channel (23) is pentagonal, in that the first loop forming channel (21) is fed by seven first feed channels (22), in that the second loop forming channel (23) is fed by five feed channels and in that three channels (26) extend from the second loop forming channel (23) and provide the third channels feeding tangentially the annular channel (25).
- A spray nozzle according to claim 6, characterised in that the first feed channels (22) are aligned with the side walls of the first loop forming channel (21) and in that the second feed channels (24) are aligned with the side walls of the second loop forming channel (23), whereas the tangential channels (26) are tangent to the external wall of the annular channel (25).
- A spray nozzle according to claim 1, characterised in that the nozzle housing (1, 19, 27) exhibits a hollow (11, 20).
- A spray nozzle according to claim 1, characterised in that at least the first loop forming channel (28) includes narrowed portions (29) which are provided with air channels (30) substantially perpendicular with respect to these parts, these channels communicating through bores (31) with the outside air.
- A spray nozzle according to claim 9, characterised in that the air channels (30) include axial extensions (32) which are in communication with the outside air via channels (33).
- A spray nozzle according to claim 1, characterised in that the nozzle body (13) is independent of the output member (12), in that it is inserted as a member independent into the nozzle housing (1, 19, 27) and in that it is housed therewith in a tubular member.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1561/93 | 1993-05-25 | ||
| CH156193 | 1993-05-25 | ||
| PCT/IB1994/000118 WO1994027729A1 (en) | 1993-05-25 | 1994-05-20 | Spraying nozzle for regulating a rate of flow per unit of time |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0775023A1 EP0775023A1 (en) | 1997-05-28 |
| EP0775023B1 true EP0775023B1 (en) | 1998-11-18 |
Family
ID=4213299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94914532A Revoked EP0775023B1 (en) | 1993-05-25 | 1994-05-20 | Spraying nozzle for regulating a rate of flow per unit of time |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US5722598A (en) |
| EP (1) | EP0775023B1 (en) |
| JP (1) | JPH08510411A (en) |
| AT (1) | ATE173416T1 (en) |
| AU (1) | AU676909B2 (en) |
| CA (1) | CA2163533A1 (en) |
| DE (1) | DE59407318D1 (en) |
| DK (1) | DK0775023T3 (en) |
| ES (1) | ES2126753T3 (en) |
| WO (1) | WO1994027729A1 (en) |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE504838C2 (en) * | 1995-08-31 | 1997-05-12 | Astra Ab | Device at a spray nozzle |
| DE19811736A1 (en) * | 1998-03-18 | 1999-09-23 | Guenter Slowik | Vortex creator for jets |
| FR2795346B1 (en) * | 1999-06-24 | 2001-09-14 | Verbena Corp N V | SPRAY NOZZLE WITH SWIRL CHAMBER PROVIDED WITH A FRONTAL ANNULAR RIB POSTERIOR EXIT PASSAGE |
| FR2821573B1 (en) * | 2001-03-05 | 2003-06-13 | Verbena Corp N V | PROFILED CHANNEL SPRAY NOZZLE |
| DE102005024612A1 (en) * | 2005-05-25 | 2006-11-30 | Wella Ag | Spray head with a nozzle insert |
| US8500044B2 (en) * | 2007-05-04 | 2013-08-06 | S.C. Johnson & Son, Inc. | Multiple nozzle differential fluid delivery head |
| KR20080100827A (en) * | 2006-03-07 | 2008-11-19 | 베링거 인겔하임 인터내셔날 게엠베하 | Swirl |
| US8820664B2 (en) | 2007-05-16 | 2014-09-02 | S.C. Johnson & Son, Inc. | Multiple nozzle differential fluid delivery head |
| HU229699B1 (en) | 2007-05-23 | 2014-05-28 | Mta Termeszettudomanyi Kutatokoezpont Mta Ttk | Imaging optical checking device with pinhole camera (reflectometer, polarimeter, ellipsicmeter) |
| FR2917721B1 (en) * | 2007-06-19 | 2012-07-27 | Rexam Dispensing Sys | PUSH BUTTON COMPRISING AXIAL CHANNELS FOR THE BALANCE OF THE TOURBILLONARY CHAMBER |
| US9242256B2 (en) | 2007-07-17 | 2016-01-26 | S.C. Johnson & Son, Inc. | Aerosol dispenser assembly having VOC-free propellant and dispensing mechanism therefor |
| EP2077132A1 (en) | 2008-01-02 | 2009-07-08 | Boehringer Ingelheim Pharma GmbH & Co. KG | Dispensing device, storage device and method for dispensing a formulation |
| EP2662472B1 (en) | 2009-03-31 | 2019-02-27 | Boehringer Ingelheim International Gmbh | Method for coating a surface of a component |
| US9265910B2 (en) | 2009-05-18 | 2016-02-23 | Boehringer Ingelheim International Gmbh | Adapter, inhalation device, and nebulizer |
| JP5658268B2 (en) | 2009-11-25 | 2015-01-21 | ベーリンガー インゲルハイム インターナショナル ゲゼルシャフト ミット ベシュレンクテル ハフツング | Nebulizer |
| US10016568B2 (en) | 2009-11-25 | 2018-07-10 | Boehringer Ingelheim International Gmbh | Nebulizer |
| EP2504052B1 (en) | 2009-11-25 | 2022-07-27 | Boehringer Ingelheim International GmbH | Nebulizer |
| JP2011235197A (en) * | 2010-04-30 | 2011-11-24 | Yoshino Kogyosho Co Ltd | Nozzle tip |
| FR2961189B1 (en) * | 2010-06-14 | 2013-02-22 | Valois Sas | HEAD OF DISTRIBUTION OF FLUID PRODUCT. |
| EP2585151B1 (en) | 2010-06-24 | 2018-04-04 | Boehringer Ingelheim International GmbH | Nebulizer |
| EP2694220B1 (en) | 2011-04-01 | 2020-05-06 | Boehringer Ingelheim International GmbH | Medical device comprising a container |
| US9827384B2 (en) | 2011-05-23 | 2017-11-28 | Boehringer Ingelheim International Gmbh | Nebulizer |
| WO2013152894A1 (en) | 2012-04-13 | 2013-10-17 | Boehringer Ingelheim International Gmbh | Atomiser with coding means |
| ES2836977T3 (en) | 2013-08-09 | 2021-06-28 | Boehringer Ingelheim Int | Nebulizer |
| EP3030298B1 (en) | 2013-08-09 | 2017-10-11 | Boehringer Ingelheim International GmbH | Nebulizer |
| DK3139984T3 (en) | 2014-05-07 | 2021-07-19 | Boehringer Ingelheim Int | Atomizer |
| RS64124B1 (en) | 2014-05-07 | 2023-05-31 | Boehringer Ingelheim Int | Nebulizer and container |
| ES2954961T3 (en) | 2014-05-07 | 2023-11-27 | Boehringer Ingelheim Int | Unit, nebulizer and method |
| CN204994473U (en) * | 2015-08-03 | 2016-01-27 | 上海爱农机电设备有限公司 | Portable superfine atomizing machine |
| USD842451S1 (en) * | 2017-05-24 | 2019-03-05 | Hamworthy Combustion Engineering Limited | Atomizer |
| KR102077606B1 (en) * | 2018-03-15 | 2020-02-17 | (주)연우 | orifice and spray vessel having the same |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2284264A (en) * | 1939-03-04 | 1942-05-26 | George B Crisp | Fuel burner |
| US2660474A (en) * | 1950-08-30 | 1953-11-24 | Ii Leighton Lee | Nozzle |
| US2797134A (en) * | 1953-09-22 | 1957-06-25 | Gen Fire Appliance Co Ltd | Nozzle for producing spray and mist |
| US2920831A (en) * | 1957-02-28 | 1960-01-12 | Jr Wadsworth J Johnsyn | Fuel atomizing nozzle |
| US3081952A (en) * | 1961-06-30 | 1963-03-19 | Bendix Corp | Fuel nozzle |
| US3275248A (en) * | 1964-08-07 | 1966-09-27 | Spraying Systems Co | Modified full cone nozzle |
| IT1094411B (en) * | 1977-08-02 | 1985-08-02 | Werding Winfried J | SPRAY NOZZLE, DEVICES INCLUDING SUCH NOZZLE AND PROCEDURE FOR THEIR PRODUCTION |
| GB1589942A (en) * | 1977-11-02 | 1981-05-20 | Realex Corp | Fine mist spraying apparatus |
-
1994
- 1994-05-20 EP EP94914532A patent/EP0775023B1/en not_active Revoked
- 1994-05-20 DK DK94914532T patent/DK0775023T3/en active
- 1994-05-20 AU AU66871/94A patent/AU676909B2/en not_active Ceased
- 1994-05-20 ES ES94914532T patent/ES2126753T3/en not_active Expired - Lifetime
- 1994-05-20 JP JP7500443A patent/JPH08510411A/en not_active Ceased
- 1994-05-20 DE DE59407318T patent/DE59407318D1/en not_active Expired - Fee Related
- 1994-05-20 US US08/553,294 patent/US5722598A/en not_active Expired - Fee Related
- 1994-05-20 WO PCT/IB1994/000118 patent/WO1994027729A1/en not_active Application Discontinuation
- 1994-05-20 AT AT94914532T patent/ATE173416T1/en not_active IP Right Cessation
- 1994-05-20 CA CA002163533A patent/CA2163533A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| AU6687194A (en) | 1994-12-20 |
| JPH08510411A (en) | 1996-11-05 |
| ATE173416T1 (en) | 1998-12-15 |
| WO1994027729A1 (en) | 1994-12-08 |
| CA2163533A1 (en) | 1994-12-08 |
| US5722598A (en) | 1998-03-03 |
| DE59407318D1 (en) | 1998-12-24 |
| ES2126753T3 (en) | 1999-04-01 |
| DK0775023T3 (en) | 1999-06-23 |
| AU676909B2 (en) | 1997-03-27 |
| EP0775023A1 (en) | 1997-05-28 |
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