EP1170059B1 - Nozzle for spraying a surface - Google Patents

Nozzle for spraying a surface Download PDF

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Publication number
EP1170059B1
EP1170059B1 EP01115038A EP01115038A EP1170059B1 EP 1170059 B1 EP1170059 B1 EP 1170059B1 EP 01115038 A EP01115038 A EP 01115038A EP 01115038 A EP01115038 A EP 01115038A EP 1170059 B1 EP1170059 B1 EP 1170059B1
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EP
European Patent Office
Prior art keywords
outlet opening
piston rod
sprayed
nozzle according
impact plate
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.)
Expired - Lifetime
Application number
EP01115038A
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German (de)
French (fr)
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EP1170059A2 (en
EP1170059A3 (en
Inventor
Lothar Bendig
Hermann Lange
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Lechler GmbH
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Lechler GmbH
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Filing date
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Publication of EP1170059A2 publication Critical patent/EP1170059A2/en
Publication of EP1170059A3 publication Critical patent/EP1170059A3/en
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Publication of EP1170059B1 publication Critical patent/EP1170059B1/en
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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
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
    • 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
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
    • B05B1/267—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors the liquid or other fluent material being deflected in determined directions
    • 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
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
    • B05B1/265—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors the liquid or other fluent material being symmetrically deflected about the axis of the nozzle
    • 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
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3006—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being actuated by the pressure of the fluid to be sprayed
    • 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
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/3073—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a deflector acting as a valve in co-operation with the outlet orifice

Definitions

  • the invention relates to a nozzle for spraying a surface, having a housing with a feed channel and with an outlet opening for the liquid to be sprayed and provided with a deflecting the emerging from the outlet opening jet baffle plate, which is arranged on a centrally guided in the feed piston rod.
  • the baffle plate closes off the outlet opening in one of its end positions and is adjustable against the force of a restoring spring from the pressure of the liquid into a second end position determined by a stop. In the second end position of the baffle plate is at a distance in front of the outlet opening.
  • spray nozzles of this type are known in which, for example, a liquid jet impinges on a spaced apart from the outlet opening arranged baffle plate and is fan-like distributed as a spray to the outside.
  • Such spray nozzles are, when surfaces are to be cooled, arranged correspondingly at a distance in front of the surface of a holder.
  • Other devices for cooling surfaces also provide spraying nozzles arranged at a distance from the surface, for example a conical spray jet pointing downwards onto the surface submit.
  • the necessary distance of the nozzles is greater, the larger the surface to be acted upon. It is always necessary in such designs, in addition to the holders for the nozzles to lay the corresponding piping for supplying the appropriate coolant.
  • U.S. Patent No. 5,004,157 discloses a sprinkler system according to the preamble of claim 1, for example for irrigating gardens and lawns.
  • the sprinkler system has a sprinkler head arrangement with a filter element, a feed channel, an outlet opening and a baffle plate.
  • a liquid to be sprayed is passed through the outlet opening, which lies in a surface to be sprayed on the baffle plate and deflected by this.
  • the baffle plate is arranged on a shaft, which is arranged centrally in the filter element and closes the outlet opening in its closed position.
  • the baffle plate can be adjusted against the force of a return spring by means of the pressure of the liquid to be sprayed in a second, remote from the outlet end position.
  • German Offenlegungsschrift DE 43 26 892 A discloses a jet nozzle for basins.
  • the Einstrahldüse has a nozzle housing, wherein the nozzle housing in turn has a hollow cylindrical interior, an outlet opening for the medium to be emitted and a head portion of a valve body which deflects the medium emerging from the outlet opening.
  • the outlet opening is arranged in the region in which the medium jet is discharged.
  • the head part of the valve body is arranged centrally in the hollow cylindrical interior and closes in its closing end position by means of a rubber-elastic seal the outlet opening. In its open position, the valve body is guided by means of the medium pressure, to which a spring force a spring force memory must be overcome, by means of which the valve is kept closed and optionally also closed again.
  • the present invention has for its object to provide a spray nozzle, by means of a defined area in which the nozzle is arranged, can be reliably sprayed, regardless of how the surface to be sprayed is aligned.
  • the invention consists in a nozzle of the type mentioned in that the outlet opening is in the surface to be sprayed that the outlet opening facing surface of the baffle plate extends at least in the radially outer region in a plane perpendicular to the axis of the piston rod plane, so that the out of the nozzle liquid exiting led to the piston rod, then deflected in a direction perpendicular to the original direction of exit direction and impinges on the surface to be sprayed surface by impact with the surface as a backward Sprühf kauer.
  • the piston rod can pass through a smaller cross section than the outlet opening lying in the flow direction of the liquid in front of the outlet opening, so that the liquid to be sprayed is guided outwardly in the area substantially along the piston rod and then deflected on the baffle plate.
  • the second end position of the baffle plate determining stop can be formed by a piston on the end facing away from the baffle plate end of the piston rod, which is displaceable in a guide cylinder of predetermined length.
  • This guide cylinder and guided in it piston determine the distance of the baffle plate from the surface to be sprayed.
  • the piston itself serves to push the piston rod due to the fluid pressure to the outside, so that the baffle plate assumes its second end position.
  • the piston can also serve as a bearing for serving as a return spring, arranged around the piston rod around coil spring whose second end abuts a guide disc within the feed channel, which serves as a guide for the piston rod.
  • the piston and the guide plate are expediently provided with passage openings for the liquid to be sprayed.
  • the housing may be provided with a flange, whose side facing away from the housing with the baffle plate is aligned in its inoperative position.
  • This flange can be used in the surface to be sprayed so that its aligned with the baffle plate outside coincides with the surface to be sprayed.
  • the nozzle 1 according to FIG. 1, which can also be called a deflector nozzle, consists of a housing 2a with a flange 2b screwed to the housing 2a via a thread 10, which is provided with openings 11 distributed on its circumference and via screws which are not shown can be screwed with corresponding mounting holes 12, which are provided for example on a ring 13 which is arranged in an opening of a wall 3, the outside of which is to be sprayed for the purpose of cooling.
  • the housing 2a is provided with a remote cylindrical feed channel 14 for the liquid to be sprayed, which is supplied in a manner not shown in detail from the connection part of the housing 2a in the direction of the arrow 15.
  • a piston 4 is arranged, which is fixedly attached to the lower end of a piston rod 16.
  • the piston 4 is provided with through holes 4a for the flow of liquid and serves as a stop for a coil spring 5, which is wrapped around the piston rod 16 and abuts with its other end to a guide plate 7, which is fixedly arranged in the housing 2a and also with through holes 7a is provided for the liquid to be sprayed.
  • the guide plate 7 is held in the housing 2a by an insert 17 which surrounds the piston rod 16 with an annular gap 8, which is provided outside of the insert 17 with a baffle plate 6, which rests on the insert 17 in the solid line position and an outside closes with the surface 2c of the flange 2b final exit opening.
  • This top 2c of the flange is, as shown in FIG. 1, in a Level with the outside 3a of the wall 3, which in turn represents the area to be sprayed for the purpose of cooling.
  • Fig. 2 The function of the nozzle will be apparent from Fig. 2. It can be seen that upon release of the liquid supply in the direction of the arrow 15, the piston 4 is pressed against the action of the spring 5 upwards until it abuts against the edge 18 of the cylindrical guide portion 14a. In this position, the baffle plate occupies the position 6 ', in which the piston rod 16, as shown in phantom, is displaced upwards. The liquid therefore exits through the annular gap 8 under pressure, is guided on the outer surfaces of the piston rod 16 upwards and on the fillet 19 between the perpendicular to the axis 21 of the piston rod 16 extending surface 20 on the underside of the baffle plate 6, 6 'to the outside deflected to, as shown in FIG.
  • the piston 4 is returned via the spring 5 back into the starting position shown in FIG. 1, in which the baffle plate is aligned with the surface to be sprayed 3a.
  • the spring force must be designed so that the applied water pressure can overcome this spring force.
  • the nozzle according to the invention is the spraying of side walls of ships with the task to cool them to make them invisible to infrared detectors.
  • the nozzle can also be used whenever surfaces are to be sprayed, without outside of the surface larger structures for holding and supplying the nozzle are desired.

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  • Nozzles (AREA)
  • Reciprocating Pumps (AREA)

Abstract

Nozzle (1) used for spraying a surface comprises a housing (2a) with a feed channel (14), an outlet opening for the spray liquid, and a baffle plate (6) for guiding the stream emerging from the outlet opening. The outlet opening lies in the area (3a) to be sprayed. The baffle plate is arranged on a piston rod (16) guided centrally in the feed channel. In one of its end positions the baffle plate closes the outlet opening so that it is moved by the pressure of the liquid against the force of a restoring spring (5) into a second end position defined by a stop (18), and in this end position lies a distance in front of the outlet opening. Preferred Features: The piston rod passes through a ring slot (8) in front of the outlet opening.

Description

Die Erfindung betrifft eine Düse zum Besprühen einer Fläche, mit einem Gehäuse mit einem Zuführkanal und mit einer Austrittsöffnung für die zu versprühende Flüssigkeit sowie mit einem zur Umlenkung des aus der Austrittsöffnung austretenden Strahles vorgesehenen Prallteller, der an einer zentral im Zuführkanal geführten Kolbenstange angeordnet ist. Der Prallteller schließt die Austrittsöffnung in einer seiner Endlagen ab und ist gegen die Kraft einer Rückstellfeder vom Druck der Flüssigkeit in eine durch einen Anschlag bestimmte zweite Endlage verstellbar. In der zweiten Endlage liegt der Prallteller im Abstand vor der Austrittsöffnung.The invention relates to a nozzle for spraying a surface, having a housing with a feed channel and with an outlet opening for the liquid to be sprayed and provided with a deflecting the emerging from the outlet opening jet baffle plate, which is arranged on a centrally guided in the feed piston rod. The baffle plate closes off the outlet opening in one of its end positions and is adjustable against the force of a restoring spring from the pressure of the liquid into a second end position determined by a stop. In the second end position of the baffle plate is at a distance in front of the outlet opening.

Es sind Sprühdüsen dieser Art bekannt, bei denen beispielsweise ein Flüssigkeitsstrahl auf einen im Abstand vor der Austrittsöffnung angeordneten Prallteller auftrifft und von dort fächerartig als Sprühstrahl nach außen verteilt wird. Solche Sprühdüsen werden, wenn Flächen gekühlt werden sollen, entsprechend im Abstand vor der Fläche an einer Halterung angeordnet. Auch andere Einrichtungen zum Kühlen von Flächen sehen im Abstand zur Fläche angeordnete Sprühdüsen vor, die beispielsweise einen kegelförmigen Sprühstrahl nach unten auf die Fläche abgeben. In allen Fällen ist es notwendig, die Sprühdüsen in entsprechendem Abstand vor der zu kühlenden Fläche an einer Halterung zu befestigen. Der notwendige Abstand der Düsen wird um so größer, je größer die zu beaufschlagende Fläche ist. Es ist bei solchen Bauarten stets erforderlich, neben den Halterungen für die Düsen auch die entsprechenden Rohrleitungen zur Zuführung der entsprechenden Kühlflüssigkeit zu verlegen.There are spray nozzles of this type are known in which, for example, a liquid jet impinges on a spaced apart from the outlet opening arranged baffle plate and is fan-like distributed as a spray to the outside. Such spray nozzles are, when surfaces are to be cooled, arranged correspondingly at a distance in front of the surface of a holder. Other devices for cooling surfaces also provide spraying nozzles arranged at a distance from the surface, for example a conical spray jet pointing downwards onto the surface submit. In all cases, it is necessary to attach the spray nozzles at a corresponding distance in front of the surface to be cooled to a holder. The necessary distance of the nozzles is greater, the larger the surface to be acted upon. It is always necessary in such designs, in addition to the holders for the nozzles to lay the corresponding piping for supplying the appropriate coolant.

In der US-Patentschrift US 5,004,157 ist ein Sprinklersystem, gemäß des Obergegriffs des Anspruchs 1, beschrieben, beispielsweise für die Bewässerung von Gärten und Rasenflächen. Das Sprinklersystem weist eine Sprinklerkopfanordnung mit einem Filterelement, einem Zuführkanal, einer Austrittsöffnung und einem Prallteller auf. Eine zu versprühende Flüssigkeit wird durch die Austrittsöffnung, die in einer zu besprühenden Fläche liegt, auf den Prallteller geleitet und von diesem umgelenkt. Der Prallteller ist an einem Schaft angeordnet, der zentral im Filterelement angeordnet ist und die Austrittsöffnung in seiner Geschlossenstellung verschließt. Der Prallteller kann gegen die Kraft einer Rückstellfeder mittels des Drucks der zu versprühenden Flüssigkeit in eine zweite, von der Austrittsöffnung entfernte Endlage verstellt werden.U.S. Patent No. 5,004,157 discloses a sprinkler system according to the preamble of claim 1, for example for irrigating gardens and lawns. The sprinkler system has a sprinkler head arrangement with a filter element, a feed channel, an outlet opening and a baffle plate. A liquid to be sprayed is passed through the outlet opening, which lies in a surface to be sprayed on the baffle plate and deflected by this. The baffle plate is arranged on a shaft, which is arranged centrally in the filter element and closes the outlet opening in its closed position. The baffle plate can be adjusted against the force of a return spring by means of the pressure of the liquid to be sprayed in a second, remote from the outlet end position.

Aus der deutschen Offenlegungsschrift DE 43 26 892 A ist eine Einstrahldüse für Becken bekannt. Die Einstrahldüse weist ein Düsengehäuse auf, wobei das Düsengehäuse seinerseits ein hohlzylindrischen Innenraum, eine Austrittsöffnung für das auszustrahlende Medium und ein Kopfteil eines Ventilkörpers aufweist, der das aus der Austrittsöffnung austretende Medium umlenkt. Die Austrittsöffnung ist in dem Bereich angeordnet, in den der Mediumstrahl abgegeben wird. Das Kopfteil des Ventilkörpers ist zentral im hohlzylindrischen Innenraum angeordnet und verschließt in seiner Verschlussendstellung mittels einer gummielastischen Dichtung die Austrittsöffnung. In seine Offenstellung ist der Ventilkörper mittels des Mediumsdrucks geführt, wobei dazu eine Federkraft eines Federkraftspeichers überwunden werden muss, mittels der das Ventil verschlossen gehalten und gegebenenfalls auch wieder geschlossen wird.German Offenlegungsschrift DE 43 26 892 A discloses a jet nozzle for basins. The Einstrahldüse has a nozzle housing, wherein the nozzle housing in turn has a hollow cylindrical interior, an outlet opening for the medium to be emitted and a head portion of a valve body which deflects the medium emerging from the outlet opening. The outlet opening is arranged in the region in which the medium jet is discharged. The head part of the valve body is arranged centrally in the hollow cylindrical interior and closes in its closing end position by means of a rubber-elastic seal the outlet opening. In its open position, the valve body is guided by means of the medium pressure, to which a spring force a spring force memory must be overcome, by means of which the valve is kept closed and optionally also closed again.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Sprühdüse zu schaffen, mittels der eine definierte Fläche, in der die Düse angeordnet ist, zuverlässig besprüht werden kann, unabhängig davon, wie die zu besprühende Fläche ausgerichtet ist.The present invention has for its object to provide a spray nozzle, by means of a defined area in which the nozzle is arranged, can be reliably sprayed, regardless of how the surface to be sprayed is aligned.

Die Erfindung besteht bei einer Düse der eingangs genannten Art darin, dass die Austrittsöffnung in der zu besprühenden Fläche liegt, dass die der Austrittsöffnung zugewandte Fläche des Pralltellers verläuft zumindest im radial äußeren Bereich in einer senkrecht zur Achse der Kolbenstange stehenden Ebene verläuft, so dass die aus der Düse austretende Flüssigkeit an der Kolbenstange geführt, dann in eine senkrecht zur ursprünglichen Austrittsrichtung verlaufende Richtung umgelenkt und durch Aufprall auf die Fläche als rückwärts gerichteter Sprühfächer auf die zu besprühende Fläche auftrifft.The invention consists in a nozzle of the type mentioned in that the outlet opening is in the surface to be sprayed that the outlet opening facing surface of the baffle plate extends at least in the radially outer region in a plane perpendicular to the axis of the piston rod plane, so that the out of the nozzle liquid exiting led to the piston rod, then deflected in a direction perpendicular to the original direction of exit direction and impinges on the surface to be sprayed surface by impact with the surface as a backward Sprühfächer.

Durch diese Ausgestaltung wird die Anordnung einer Halterung außerhalb der zu besprühenden Fläche überflüssig, denn die Fläche selbst dient zur Aufnahme der Düse. Die für die Düse notwendigen Zuführleitungen können auf der von der zu besprühenden Fläche abgewandten Seite verlegt werden.By this configuration, the arrangement of a holder outside the surface to be sprayed unnecessary, because the surface itself serves to accommodate the nozzle. The necessary for the nozzle supply lines can be laid on the side facing away from the surface to be sprayed.

In Weiterbildung der Erfindung kann die Kolbenstange eine in der Strömungsrichtung der Flüssigkeit vor der Austrittsöffnung liegende Durchgangsöffnung kleineren Querschnittes als die Austrittsöffnung durchsetzen, so dass die zu versprühende Flüssigkeit im wesentlichen im Bereich entlang der Kolbenstange nach außen geführt und dann am Prallteller umgelenkt wird.In a further development of the invention, the piston rod can pass through a smaller cross section than the outlet opening lying in the flow direction of the liquid in front of the outlet opening, so that the liquid to be sprayed is guided outwardly in the area substantially along the piston rod and then deflected on the baffle plate.

In Ausgestaltung der Erfindung kann der die zweite Endstellung des Pralltellers bestimmende Anschlag durch einen Kolben an dem vom Prallteller abgewandten Ende der Kolbenstange gebildet sein, der in einem Führungszylinder vorbestimmter Länge verschiebbar ist. Dieser Führungszylinder und der in ihm geführte Kolben bestimmen dabei den Abstand des Pralltellers von der zu besprühenden Fläche. Der Kolben selbst dient dazu, die Kolbenstange bedingt durch den Flüssigkeitsdruck nach außen zu drücken, so dass der Prallteller seine zweite Endstellung einnimmt.In an embodiment of the invention, the second end position of the baffle plate determining stop can be formed by a piston on the end facing away from the baffle plate end of the piston rod, which is displaceable in a guide cylinder of predetermined length. This guide cylinder and guided in it piston determine the distance of the baffle plate from the surface to be sprayed. The piston itself serves to push the piston rod due to the fluid pressure to the outside, so that the baffle plate assumes its second end position.

Der Kolben kann aber auch als Anlage für eine als Rückstellfeder dienende, um die Kolbenstange herum angeordnete Wendelfeder dienen, deren zweites Ende an einer Führungsscheibe innerhalb des Zuführkanals anliegt, die als Führung für die Kolbenstange dient. Dabei sind zweckmäßig Kolben und die Führungsscheibe mit Durchgangsöffnungen für die zu versprühende Flüssigkeit versehen.The piston can also serve as a bearing for serving as a return spring, arranged around the piston rod around coil spring whose second end abuts a guide disc within the feed channel, which serves as a guide for the piston rod. In this case, the piston and the guide plate are expediently provided with passage openings for the liquid to be sprayed.

In Ausgestaltung der Erfindung kann schließlich das Gehäuse mit einem Flansch versehen sein, dessen vom Gehäuse wegweisende Seite mit dem Prallteller in dessen Außerbetriebsstellung fluchtet. Dieser Flansch kann in die zu besprühenden Fläche so eingesetzt werden, dass seine mit dem Prallteller fluchtende Außenseite mit der zu besprühenden Fläche zusammenfällt.In an embodiment of the invention, finally, the housing may be provided with a flange, whose side facing away from the housing with the baffle plate is aligned in its inoperative position. This flange can be used in the surface to be sprayed so that its aligned with the baffle plate outside coincides with the surface to be sprayed.

Die Erfindung ist anhand eines Ausführungsbeispieles in der Zeichnung dargestellt und wird im folgenden erläutert. Es zeigen:

Fig. 1
eine teilweise aufgeschnittene Seitenansicht einer Düse nach der Erfindung,
Fig. 2
die Düse nach Fig. 1 nach ihrem Einbau in die zu besprühende Fläche und
Fig. 3
eine schematische Draufsicht - im verkleinerten Maßstab - auf die Anordnung nach Fig. 2, wobei allerdings drei der erfindungsgemäßen Sprühdüsen nebeneinander angeordnet sind und die Überdeckung der gegenseitigen Sprühbereiche gezeigt ist.
The invention is illustrated by means of an embodiment in the drawing and will be explained in the following. Show it:
Fig. 1
a partially cutaway side view of a nozzle according to the invention,
Fig. 2
the nozzle of FIG. 1 after its installation in the surface to be sprayed and
Fig. 3
a schematic plan view - on a reduced scale - on the arrangement of FIG. 2, although three of the spray nozzles according to the invention are arranged side by side and the overlap of the mutual spray areas is shown.

Die Düse 1 nach Fig. 1, die auch als Deflektordüse bezeichnet werden kann, besteht aus einem Gehäuse 2a mit einem über ein Gewinde 10 an das Gehäuse 2a angeschraubten Flansch 2b, der mit auf seinem Umfang verteilten Öffnungen 11 versehen ist und über nicht gezeigte Schrauben mit entsprechenden Aufnahmebohrungen 12 verschraubbar ist, die beispielsweise an einem Ring 13 vorgesehen sind, der in einer Öffnung einer Wand 3 angeordnet wird, deren Außenseite zum Zwecke der Kühlung besprüht werden soll.The nozzle 1 according to FIG. 1, which can also be called a deflector nozzle, consists of a housing 2a with a flange 2b screwed to the housing 2a via a thread 10, which is provided with openings 11 distributed on its circumference and via screws which are not shown can be screwed with corresponding mounting holes 12, which are provided for example on a ring 13 which is arranged in an opening of a wall 3, the outside of which is to be sprayed for the purpose of cooling.

Das Gehäuse 2a ist mit einem abgesetzten zylindrischen Zuführkanal 14 für die zu versprühende Flüssigkeit versehen, die in nicht näher gezeigter Weise vom Anschlussteil des Gehäuses 2a her im Sinn des Pfeiles 15 zugeführt wird. In einem im Durchmesser größeren Abschnitt 14a des Zuführkanals 14 ist ein Kolben 4 angeordnet, der fest am unteren Ende einer Kolbenstange 16 angebracht ist. Der Kolben 4 ist mit Durchgangsöffnungen 4a für die Durchströmung mit Flüssigkeit versehen und dient als Anschlag für eine Wendelfeder 5, die um die Kolbenstange 16 herumgelegt ist und mit ihrem anderen Ende an einer Führungsscheibe 7 anliegt, die fest im Gehäuse 2a angeordnet und ebenfalls mit Durchgangsöffnungen 7a für die zu versprühende Flüssigkeit versehen ist. Die Führungsscheibe 7 wird dabei im Gehäuse 2a durch einen Einsatz 17 gehalten, der mit einem Ringspalt 8 die Kolbenstange 16 umgibt, die außerhalb des Einsatzes 17 mit einem Prallteller 6 versehen ist, der auf dem Einsatz 17 in der durchgezogen gezeichneten Stellung aufliegt und eine außen mit der Oberfläche 2c des Flansches 2b abschließende Ausgangsöffnung verschließt. Diese Oberseite 2c des Flansches liegt, wie Fig. 1 zeigt, in einer Ebene mit der Außenseite 3a der Wand 3, welche wiederum die zum Zweck der Kühlung zu besprühende Fläche darstellt.The housing 2a is provided with a remote cylindrical feed channel 14 for the liquid to be sprayed, which is supplied in a manner not shown in detail from the connection part of the housing 2a in the direction of the arrow 15. In a larger diameter portion 14 a of the feed channel 14, a piston 4 is arranged, which is fixedly attached to the lower end of a piston rod 16. The piston 4 is provided with through holes 4a for the flow of liquid and serves as a stop for a coil spring 5, which is wrapped around the piston rod 16 and abuts with its other end to a guide plate 7, which is fixedly arranged in the housing 2a and also with through holes 7a is provided for the liquid to be sprayed. The guide plate 7 is held in the housing 2a by an insert 17 which surrounds the piston rod 16 with an annular gap 8, which is provided outside of the insert 17 with a baffle plate 6, which rests on the insert 17 in the solid line position and an outside closes with the surface 2c of the flange 2b final exit opening. This top 2c of the flange is, as shown in FIG. 1, in a Level with the outside 3a of the wall 3, which in turn represents the area to be sprayed for the purpose of cooling.

Die Funktion der Düse wird anhand von Fig. 2 deutlich. Es ist zu erkennen, dass bei Freigabe der Flüssigkeitszufuhr im Sinn des Pfeiles 15 der Kolben 4 gegen die Wirkung der Feder 5 nach oben gedrückt wird, bis er an der Kante 18 des zylindrischen Führungsbereiches 14a anschlägt. In dieser Lage nimmt der Prallteller die Lage 6' ein, in der die Kolbenstange 16, wie strichpunktiert dargestellt, nach oben verschoben ist. Die Flüssigkeit tritt daher durch den Ringspalt 8 unter Druck aus, wird an den Außenflächen der Kolbenstange 16 nach oben geführt und über die Ausrundung 19 zwischen der senkrecht zur Achse 21 der Kolbenstange 16 verlaufenden Fläche 20 an der Unterseite des Pralltellers 6, 6' nach außen umgelenkt, um, wie Fig. 2 zeigt, in einem flachen Sprühfächer 9, dessen Reflektionswinkel nur leicht von der Horizontalen abweicht, großflächig nach außen etwa kreisförmig versprüht zu werden. Die Fig. 3 zeigt dabei, dass bei Anordnung von mehreren Düsen 1 auf der Fläche 3a sich diese relativ großen Sprühfächer 9 gegenseitig überdecken können, so dass eine flächendeckende Besprühung möglich ist.The function of the nozzle will be apparent from Fig. 2. It can be seen that upon release of the liquid supply in the direction of the arrow 15, the piston 4 is pressed against the action of the spring 5 upwards until it abuts against the edge 18 of the cylindrical guide portion 14a. In this position, the baffle plate occupies the position 6 ', in which the piston rod 16, as shown in phantom, is displaced upwards. The liquid therefore exits through the annular gap 8 under pressure, is guided on the outer surfaces of the piston rod 16 upwards and on the fillet 19 between the perpendicular to the axis 21 of the piston rod 16 extending surface 20 on the underside of the baffle plate 6, 6 'to the outside deflected to, as shown in FIG. 2, in a flat Sprühfächer 9, whose reflection angle differs only slightly from the horizontal, to be sprayed over a large area to the outside approximately circular. 3 shows that with the arrangement of a plurality of nozzles 1 on the surface 3a, these relatively large spray fans 9 can cover one another, so that blanket spraying is possible.

Wird der Flüssigkeitsdruck abgeschaltet, wird der Kolben 4 über die Feder 5 wieder in die in Fig. 1 gezeigte Ausgangslage zurückgestellt, in der der Prallteller mit der zu besprühenden Fläche 3a fluchtet. Die Federkraft ist so auszulegen, dass der aufgebrachte Wasserdruck diese Federkraft überwinden kann.If the fluid pressure is switched off, the piston 4 is returned via the spring 5 back into the starting position shown in FIG. 1, in which the baffle plate is aligned with the surface to be sprayed 3a. The spring force must be designed so that the applied water pressure can overcome this spring force.

Eine Einsatzmöglichkeit für die Düse nach der Erfindung ist die Besprühung von Seitenwänden von Schiffen mit der Aufgabe, diese zu kühlen, um sie dann für Infrarot-Erkennungsgeräte unsichtbar zu machen. Selbstverständlich kann die Düse auch immer dann eingesetzt werden, wenn Flächen zu besprühen sind, ohne dass außerhalb der Fläche größere Aufbauten zur Halterung und Versorgung der Düse gewünscht sind.One possible use for the nozzle according to the invention is the spraying of side walls of ships with the task to cool them to make them invisible to infrared detectors. Of course, the nozzle can also be used whenever surfaces are to be sprayed, without outside of the surface larger structures for holding and supplying the nozzle are desired.

Claims (9)

  1. Nozzle for spraying a surface, having a housing with a feeding duct and with an outlet opening for the liquid to be sprayed, as well as having an impact plate which is arranged on a piston rod (16) centrally guided in the feeding duct (14) for deflecting the jet emerging from the outlet opening, wherein the impact plate closes off the outlet opening in one of its end positions and can be adjusted against the force of a restoring spring (5) by the pressure of the liquid into a second end position defined by a stop (18) wherein the impact plate is in this second end position situated at a distance in front of the outlet opening, characterised in that the outlet opening is situated in the surface (3a) to be sprayed and that the impact plate's (6) surface area (20) facing the outlet opening is at least extending in it's radially exterior area in a plane perpendicular to the axis (21) of the piston rod (16) so that the liquid emerging from the nozzle is guided along the piston rod (16), is then continuously deflected into a direction extending perpendicular to the original outlet direction and is then deflected again to the surface (20) to be sprayed on the surface (3a) to be sprayed as a backward-directed spray fan (9).
  2. Nozzle according to claim 1, characterised in that the piston rod (16) penetrates a ring gap (8) situated in front of the outlet opening.
  3. Nozzle according to claim 2, characterised in that a rounding (19) is provided in a transition area between the piston rod (16) and the impact plate (6).
  4. Nozzle according to claim 1, characterised in that the stop is formed by a piston (4) which is arranged at an end of the piston rod (16) facing away from the impact plate (6), said piston being displaceable in a guiding cylinder (14a) of a predetermined length.
  5. Nozzle according to claim 4, characterised in that the piston (4) is used as a resting device for an end of a helical spring (5) serving as a restoring spring and arranged around the piston rod (16).
  6. Nozzle according to claim 5, characterised in that a second end of the helical spring (5) rests against a guide disk (7) inside the feeding duct (14), which guide disk is used as a guide for the piston rod (16).
  7. Nozzle according to claim 4 to 6, characterised in that the piston (4) and the guide disk (7) are provided with passage openings (4a, 7a) for the liquid to be sprayed.
  8. Nozzle according to one of the foregoing claims, characterised in that the housing (2a) is provided with a flange (2b) whose side pointing away from the housing (2a) is aligned with the impact plate (6) when in its inoperative position.
  9. Nozzle according to claim 8, characterised in that the flange (2b) is inserted into the surface (3a, 3) to be sprayed in such a manner that its exterior side aligned with the impact plate (6) is also aligned with the surface (3a).
EP01115038A 2000-07-07 2001-06-21 Nozzle for spraying a surface Expired - Lifetime EP1170059B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10033190 2000-07-07
DE10033190 2000-07-07
DE10041120 2000-08-22
DE10041120 2000-08-22

Publications (3)

Publication Number Publication Date
EP1170059A2 EP1170059A2 (en) 2002-01-09
EP1170059A3 EP1170059A3 (en) 2005-09-14
EP1170059B1 true EP1170059B1 (en) 2006-09-06

Family

ID=26006317

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01115038A Expired - Lifetime EP1170059B1 (en) 2000-07-07 2001-06-21 Nozzle for spraying a surface

Country Status (5)

Country Link
US (1) US6705548B2 (en)
EP (1) EP1170059B1 (en)
KR (1) KR20020005478A (en)
AT (1) ATE338583T1 (en)
DE (1) DE50110923D1 (en)

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RU2586556C1 (en) * 2015-02-27 2016-06-10 Татьяна Дмитриевна Ходакова Liquid flow spreader of ejection type
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RU2631275C1 (en) * 2016-06-10 2017-09-20 Олег Савельевич Кочетов Liquid flow splitter of jet-type by kochetov for atomizer
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RU2665534C1 (en) * 2017-09-21 2018-08-30 Олег Савельевич Кочетов Liquid flow spreader of ejection type
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JP2008544784A (en) * 2005-06-29 2008-12-11 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 Method and apparatus for atomizing a liquid
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EP2511012A1 (en) 2011-04-11 2012-10-17 Lechler GmbH Nozzle for spraying a surface
DE102011007128B3 (en) * 2011-04-11 2012-02-09 Lechler Gmbh Nozzle for spraying a surface
RU2480295C1 (en) * 2012-01-18 2013-04-27 Олег Савельевич Кочетов Kochetov's swirl atomiser
RU2481159C1 (en) * 2012-01-18 2013-05-10 Олег Савельевич Кочетов Fluid sprayer
RU2537865C1 (en) * 2013-10-24 2015-01-10 Олег Савельевич Кочетов Swirl atomiser of kochstar type
RU2542239C1 (en) * 2013-11-06 2015-02-20 Олег Савельевич Кочетов Liquid atomiser
RU2543863C1 (en) * 2013-12-18 2015-03-10 Олег Савельевич Кочетов Liquid flow ejector-type spreader by kochetov
RU2543864C1 (en) * 2013-12-18 2015-03-10 Олег Савельевич Кочетов Combined liquid flow spreader
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RU2570441C1 (en) * 2014-09-23 2015-12-10 Олег Савельевич Кочетов Kochetov's swirl atomiser
RU2557152C1 (en) * 2014-10-16 2015-07-20 Олег Савельевич Кочетов Kochetov's swirl atomiser
RU2581377C1 (en) * 2015-02-27 2016-04-20 Мария Олеговна Стареева Liquid flow spreader of ejection type
RU2586556C1 (en) * 2015-02-27 2016-06-10 Татьяна Дмитриевна Ходакова Liquid flow spreader of ejection type
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RU2646718C2 (en) * 2015-04-24 2018-03-06 Анна Михайловна Стареева Active nozzle divider
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RU2616862C1 (en) * 2016-03-14 2017-04-18 Олег Савельевич Кочетов Liquid flow ejector-type spreader
RU2622798C1 (en) * 2016-03-18 2017-06-20 Татьяна Дмитриевна Ходакова Liquid flow ejector-type spreader
RU2631276C1 (en) * 2016-05-27 2017-09-20 Олег Савельевич Кочетов Liquid flow ejector-type spreader by kochetov
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RU2646926C1 (en) * 2017-02-10 2018-03-12 Олег Савельевич Кочетов Swirl atomizer
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RU2690406C1 (en) * 2018-09-26 2019-06-04 Константин Александрович Соснов Vortex nozzle
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Also Published As

Publication number Publication date
KR20020005478A (en) 2002-01-17
EP1170059A2 (en) 2002-01-09
EP1170059A3 (en) 2005-09-14
US6705548B2 (en) 2004-03-16
US20020020764A1 (en) 2002-02-21
ATE338583T1 (en) 2006-09-15
DE50110923D1 (en) 2006-10-19

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