EP2578319B1 - Sprinkler head - Google Patents
Sprinkler head Download PDFInfo
- Publication number
- EP2578319B1 EP2578319B1 EP12006844.0A EP12006844A EP2578319B1 EP 2578319 B1 EP2578319 B1 EP 2578319B1 EP 12006844 A EP12006844 A EP 12006844A EP 2578319 B1 EP2578319 B1 EP 2578319B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shower head
- water
- mixing chamber
- section
- nozzle 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 65
- 239000000203 mixture Substances 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 239000007921 spray Substances 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- 238000011835 investigation Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000019993 champagne Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 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
- 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
-
- 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
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
- B05B1/18—Roses; Shower heads
Definitions
- the invention relates to a shower head for sanitary showers according to the preamble of patent claim 1.
- shower heads of sanitary showers are suitable for dispensing different spray types.
- aerated jets often referred to as champagne jars, are known in which air bubbles are added to the jet of water.
- the in the CH 686 409 A5 disclosed hand shower has in the handle a water supply line with a nozzle forming flow restrictor, which opens like the existing air supply line in a widening injector, wherein subsequent to the injector a Druck unnecessary- and mixing space is arranged, which is directly limited by the jet former. Since the shower head is intended only to deliver a single spray and it is also a single-wall shower head, the construction in terms of height are no requirements to make. From the EP 1 020 571 A1 is a hand shower with a working in the manner of a water jet pump air intake known. The air intake device can be switched on and off as desired.
- the flow cross-section for the liquid is expandable when switching off the air intake.
- the ventilation device is provided in the handle of the hand shower, to which an extended mixing chamber connects.
- a shower head for the production of ventilated jets known which has a plurality of mixing chambers with funnel-shaped inlets and a central channel for the air intake.
- a shower head known which consists of a water supply line forming handle and at least one mounted above the water outlet opening shower screen.
- the water supply has a flow restrictor, which opens into an injector.
- An incoming air supply line in the handle also opens into the injector, followed by a chronically expanding pressure build-up and mixing space.
- a shower device with a water-injecting portion which is formed from a nozzle plate having a plurality of nozzles and a cover with outlet openings.
- the nozzle plate and the cover both have the same number of openings and are arranged at a fixed distance from each other.
- the nozzles and the outlet openings are tapered to provide a small diameter in the direction of the outlet side.
- the object of the invention is to improve a shower head with different jet types, which has an effective aerated jet at a reduced water flow rate.
- a shower head for a sanitary shower with a shower head housing which comprises a jet former with a plurality of jet outlet openings for generating different jet types, is provided. Furthermore, at least one water guide is arranged in the shower head housing, passes through the water to the jet outlet openings or a certain number of jet outlet openings. For generating ventilated jets or for producing an air-water mixture, at least one ventilation device, which comprises an air inlet opening and an air channel, is provided in the shower head. Furthermore, the shower head has a mixing chamber, which is in fluid communication with the water guide and the ventilation device or the air duct.
- At least one nozzle channel is provided for connecting the water guide and the mixing chamber.
- the nozzle channel has a constant flow cross-section.
- the outlet opening whose shape corresponds to that of the flow cross-section, can be arranged before or within the mixing chamber.
- the mixing chamber formed in the form of a tube having a relation to the nozzle channel larger or abruptly extended flow area. Furthermore, the mixing chamber is shaped so that it tapers in the flow direction of the water to its end.
- the air intake principle of the shower head according to the invention works similar to a jet pump. This has two inputs and one output and consists in principle of two nested tubes.
- a jet of water passes under the full line pressure from the nozzle channel into the mixing chamber, ie a pipe with a larger diameter.
- the nozzle channel is referred to here as a driving nozzle and the mixing chamber as a catching nozzle.
- the jet of water breaks and the friction and turbulence with the surrounding air cause mixing. In this process, kinetic energy is transferred from the water jet to the surrounding air, providing an effective delivery mechanism.
- the suction power is directly proportional to the water flow.
- the cross-sectional shape of the nozzle channel or the outlet opening of the nozzle channel have a significant effect on the degree of aeration of the effervescent jets.
- the nozzle channel and / or the outlet opening of the nozzle channel have a polygonal, in particular a rectangular or square cross-section. Because of this cross-sectional formation better air intake through the water droplets is possible at the point of entry of the water into the mixing chamber, as the jet is better ruptured and breaks up into finer droplets.
- the size ratios of nozzle channel and mixing chamber flow area also play a role for the promotion or for the intake of air and the degree of air-water mixing. It has been shown that a very good air mixing is given at a size ratio of the flow cross section of the nozzle channel to the smallest flow cross section of the mixing chamber of less than 1: 3, in particular 1: 3.7.
- a diffuser is arranged after the mixing chamber. This connects to the narrowest point in the flow cross-section of the mixing chamber.
- the diffuser By means of the diffuser, the flow of aerated water is slowed down and increases the fluid pressure.
- the diffuser has a flow cross-section which widens continuously or discontinuously over its length.
- the diffuser can in this case be mechanically connected to the mixing chamber or be provided as a component in one piece together with the mixing chamber.
- a further embodiment of the invention provides that an annular chamber or water distribution chamber is arranged in front of the jet outlet openings of the shower head for distribution of the fluid mixture or water-air mixture.
- the jet outlet openings, through which the water-air mixture is to be dispensed are arranged annularly around a center of the jet former.
- a distribution chamber must be provided in the flow direction to the mixing chamber or the diffuser, which ensures the connection of the mixing chamber to all jet outlet openings.
- a plurality of nozzle channels and mixing chambers are provided for the uniform supply of the annular chamber or water distribution chamber.
- the desired flow rate of water-air mixture over a larger number of nozzle channels and mixing chambers is achievable, while increasing the flow cross-sections does not promise sufficient air-water mixture and concomitant water savings.
- the nozzle channel as a single part or assembly that can be used sealed or screwed into the water supply. Since investigations have also shown that the degree of ventilation is also dependent on the distance of the outlet opening of the nozzle channel and the smallest flow cross section of the mixing chamber, thus this distance can be varied and adjusted depending on the desired spray pattern and ventilation level.
- Fig. 1 shows a section through a shower head 1 according to the invention.
- the shower head 1 comprises a showerhead housing 2, in which on the underside a jet former 3 or a jet-forming unit is arranged, which or a plurality of jet outlet openings 31, 32, 33 has.
- the jet outlet openings 31, 32, 33 have different shapes and / or sizes and are associated with different water guides 4 or inflow channels, which can be selectively controlled via an actuator 10.
- different jet types such as individual jets, which are discharged through the water outlet openings 31, can be realized.
- ventilated jets which are discharged through the water outlet openings 33 in the illustrated embodiment in the foreground.
- a water guide 4 is arranged in the shower head 1, which is in communication with a mixing chamber 6.
- the mixing chamber 6 communicates with an air channel 5 in connection, the air intake opening is arranged in the showerhead housing 2.
- the mixing chamber 6 has an opening 62, the shape of which can be adapted to the respectively required geometry of the water guide 4 or the shower head housing 2.
- the water for the aerated jets passes through a nozzle channel 7, in which the flow rate of the water is extremely increased due to the narrowed cross section, from the water guide 4 into the mixing chamber 6.
- the enrichment of the water with air takes place according to the principle of action of a water jet pump.
- the water serves as a driving medium, which flows at high speed from the outlet opening 71 of the nozzle channel 7 and the motive nozzle in the mixing chamber 6 - or also called catching nozzle - flows. There, the water meets the air located here, which serves as a suction medium.
- a suction medium By internal friction and turbulence, a shear stress in the boundary layer between the fast water and the much slower suction medium air, so that the suction medium is accelerated and entrained. Since the air in the mixing chamber 6 is accelerated, a pressure drop also arises for the suction medium, so that air is conveyed from the air duct 5.
- the velocity of the water-air mixture is increased up to the smallest flow cross-section 61 at the end of the mixing chamber 6 and then again reduced in a diffuser 8, the cross-section of which continuously widens in the flow direction of the fluid mixture.
- the pressure energy of the water-air mixture is increased simultaneously.
- the water-air mixture enters a water distribution chamber 9, which is in communication with the associated water outlet openings 33.
- the water-air mixture can be optimally distributed over the entire desired Strahltruckner design. Due to the geometry of the nozzle channel 7, the outlet opening 71, the mixing chamber 6 and the air channel 5, an efficient enrichment of the water with air is possible via the principle described above despite minimum height of the shower head 1.
- Fig. 2 shows the detail II with the mixing chamber 6, nozzle channel 7 and diffuser 8 in an enlarged view.
- Mixing chamber 6 and diffuser 8 are made in one piece in the example shown.
- the nozzle channel 7 is in turn made in one piece with the water guide 4.
- the mixing chamber 6 and the associated opening 62 for the air intake are adapted to the geometric conditions. Alternatively, the opening could also be provided as a radial opening in the mixing chamber wall.
Landscapes
- Nozzles (AREA)
- Bathtubs, Showers, And Their Attachments (AREA)
Description
Die Erfindung betrifft einen Brausekopf für Sanitärbrausen gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a shower head for sanitary showers according to the preamble of
Viele Brauseköpfe von Sanitärbrausen sind dazu geeignet, unterschiedliche Strahlarten abzugeben. Neben Einzelstrahlen sind belüftete Strahlen, die häufig auch Champagnerstrahlen genannt werden, bekannt, bei denen dem Wasserstrahl Luftblasen beigefügt werden.Many shower heads of sanitary showers are suitable for dispensing different spray types. In addition to single jets, aerated jets, often referred to as champagne jars, are known in which air bubbles are added to the jet of water.
Zur Erzeugung der belüfteten Brausestrahlen sind unterschiedliche Ausführungsarten von Brauseköpfen bekannt. Die in der
Aus der
Zudem ist aus der
From the
Moreover, from the
Weiterhin ist aus der
Schließlich ist aus der
Vor diesem Hintergrund besteht die Aufgabe der Erfindung darin, einen Brausekopf mit unterschiedlichen Strahlarten, der einen wirksamen belüfteten Strahl bei verringerter Wasserdurchflussmenge aufweist, zu verbessern.Against this background, the object of the invention is to improve a shower head with different jet types, which has an effective aerated jet at a reduced water flow rate.
Diese Aufgabe wird durch einen erfindungsgemäßen Brausekopf mit den Merkmalen des Patentanspruchs 1 gelöst.
Mit der Erfindung wird ein Brausekopf für eine Sanitärbrause mit einem Brausekopfgehäuse, das einen Strahlbildner mit einer Vielzahl von Strahlaustrittsöffnungen zur Erzeugung unterschiedlicher Strahlarten umfasst, bereitgestellt. Weiterhin ist in dem Brausekopfgehäuse wenigstens eine Wasserführung angeordnet, über die Wasser zu den Strahlaustrittsöffnungen oder einer bestimmten Anzahl von Strahlaustrittsöffnungen gelangt. Zur Erzeugung von belüfteten Strahlen bzw. zur Erzeugung eines Luft-Wassergemischs ist in dem Brausekopf wenigstens eine Belüftungseinrichtung, die eine Lufteintrittsöffnung und einen Luftkanal umfasst, vorgesehen. Weiterhin weist der Brausekopf eine Mischkammer auf, die in Fluidverbindung mit der Wasserführung und der Belüftungseinrichtung bzw. dem Luftkanal steht.
Erfindungsgemäß ist zur Verbindung von Wasserführung und Mischkammer wenigstens ein Düsenkanal vorgesehen. Der Düsenkanal weist einen konstanten Durchflussquerschnitt auf. Die Austrittsöffnung, deren Form der des Durchflussquerschnitts entspricht, kann vor oder innerhalb der Mischkammer angeordnet sein. Hierbei ist die Mischkammer in Form eines Rohres ausgebildet, das einen gegenüber dem Düsenkanal größeren oder sprunghaft erweiterten Durchflussquerschnitt aufweist. Weiterhin ist die Mischkammer derart geformt, dass sie sich in Fließrichtung des Wassers zu ihrem Ende hin verjüngt.This object is achieved by a shower head according to the invention having the features of
With the invention, a shower head for a sanitary shower with a shower head housing, which comprises a jet former with a plurality of jet outlet openings for generating different jet types, is provided. Furthermore, at least one water guide is arranged in the shower head housing, passes through the water to the jet outlet openings or a certain number of jet outlet openings. For generating ventilated jets or for producing an air-water mixture, at least one ventilation device, which comprises an air inlet opening and an air channel, is provided in the shower head. Furthermore, the shower head has a mixing chamber, which is in fluid communication with the water guide and the ventilation device or the air duct.
According to the invention, at least one nozzle channel is provided for connecting the water guide and the mixing chamber. The nozzle channel has a constant flow cross-section. The outlet opening, whose shape corresponds to that of the flow cross-section, can be arranged before or within the mixing chamber. Here is the mixing chamber formed in the form of a tube having a relation to the nozzle channel larger or abruptly extended flow area. Furthermore, the mixing chamber is shaped so that it tapers in the flow direction of the water to its end.
Das Luftansaugprinzip des erfindungsgemäßen Brausekopfes funktioniert dabei ähnlich einer Strahlpumpe. Diese besitzt zwei Eingänge und einen Ausgang und besteht im Prinzip aus zwei ineinander gesteckten Rohren. Am Wassereingang tritt ein Wasserstrahl unter dem vollen Leitungsdruck aus dem Düsenkanal in die Mischkammer, also einem Rohr mit größerem Durchmesser. Der Düsenkanal wird hierbei auch als Treibdüse und die Mischkammer als Fangdüse bezeichnet. Der Wasserstrahl reißt auf und durch die Reibung und Verwirbelung mit der umgebenden Luft kommt es zur Vermischung. Bei diesem Vorgang wird kinetische Energie vom Wasserstrahl auf die umgebende Luft übertragen, womit ein effektiver Fördermechanismus zur Verfügung steht. Die Saugleistung ist direkt proportional zum Wasserdurchfluss.The air intake principle of the shower head according to the invention works similar to a jet pump. This has two inputs and one output and consists in principle of two nested tubes. At the water inlet, a jet of water passes under the full line pressure from the nozzle channel into the mixing chamber, ie a pipe with a larger diameter. The nozzle channel is referred to here as a driving nozzle and the mixing chamber as a catching nozzle. The jet of water breaks and the friction and turbulence with the surrounding air cause mixing. In this process, kinetic energy is transferred from the water jet to the surrounding air, providing an effective delivery mechanism. The suction power is directly proportional to the water flow.
Untersuchungen der Anmelderin haben gezeigt, dass die Querschnittsform des Düsenkanals oder der Austrittsöffnung des Düsenkanals eine wesentliche Auswirkung auf den Belüftungsgrad der Brausestrahlen haben. Gemäß der Erfindung weisen daher der Düsenkanal und/oder die Austrittsöffnung des Düsenkanals einen polygonalen, insbesondere einen rechteckigen oder quadratischen Querschnitt auf. Aufgrund dieser Querschnittsausbildung ist an der Eintrittsstelle des Wassers in die Mischkammer eine bessere Luftaufnahme durch die Wassertropfen möglich, da der Strahl besser aufgerissen wird und in feinere Tröpfchen zerfällt.Investigations by the applicant have shown that the cross-sectional shape of the nozzle channel or the outlet opening of the nozzle channel have a significant effect on the degree of aeration of the effervescent jets. According to the invention, therefore, the nozzle channel and / or the outlet opening of the nozzle channel have a polygonal, in particular a rectangular or square cross-section. Because of this cross-sectional formation better air intake through the water droplets is possible at the point of entry of the water into the mixing chamber, as the jet is better ruptured and breaks up into finer droplets.
Allerdings ist es auch möglich, den Düsenkanal mit einem runden Querschnitt auszuführen.However, it is also possible to carry out the nozzle channel with a round cross section.
Weiterhin spielen für die Förderung bzw. für das Ansaugen der Luft und den Grad der Luft-Wasservermischung auch die Größenverhältnisse von Düsenkanal und Mischkammerdurchflussquerschnitt eine Rolle. Es hat sich gezeigt, dass eine sehr gute Luftdurchmischung bei einem Größenverhältnis des Durchflussquerschnitts des Düsenkanals zum kleinsten Durchflussquerschnitt der Mischkammer von kleiner als 1:3, insbesondere 1:3,7 gegeben ist.Furthermore, the size ratios of nozzle channel and mixing chamber flow area also play a role for the promotion or for the intake of air and the degree of air-water mixing. It has been shown that a very good air mixing is given at a size ratio of the flow cross section of the nozzle channel to the smallest flow cross section of the mixing chamber of less than 1: 3, in particular 1: 3.7.
Gemäß einer vorteilhaften Ausgestaltung der Erfindung ist im Anschluss an die Mischkammer ein Diffusor angeordnet. Dieser schließt sich an die engste Stelle im Durchflussquerschnitt der Mischkammer an. Mittels des Diffusors wird die Strömung des belüfteten Wassers verlangsamt und der Flüssigkeitsdruck erhöht. Hierzu weist der Diffusor einen Strömungsquerschnitt auf, der sich stetig oder unstetig über dessen Länge erweitert. Der Diffusor kann hierbei mechanisch mit der Mischkammer verbunden werden oder als Bauteil einteilig zusammen mit der Mischkammer vorgesehen sein.According to an advantageous embodiment of the invention, a diffuser is arranged after the mixing chamber. This connects to the narrowest point in the flow cross-section of the mixing chamber. By means of the diffuser, the flow of aerated water is slowed down and increases the fluid pressure. For this purpose, the diffuser has a flow cross-section which widens continuously or discontinuously over its length. The diffuser can in this case be mechanically connected to the mixing chamber or be provided as a component in one piece together with the mixing chamber.
Eine weitere Ausgestaltung der Erfindung sieht vor, dass zur Verteilung des Fluidgemischs oder Wasser-Luftgemischs -in Fließrichtung gesehen- vor den Strahlaustrittsöffnungen des Brausekopfs eine Ringkammer oder Wasserverteilkammer angeordnet ist. Üblicherweise sind die Strahlaustrittsöffnungen, durch die das Wasser-Luftgemisch abgegeben werden soll, ringförmig um einen Mittelpunkt des Strahlbildners angeordnet. Um bei den gering vorgesehenen Bauhöhen des Brausekopfes alle Strahlaustrittsöffnungen mit dem Wasser-Luftgemisch versorgen zu können, muss in Fließrichtung nach der Mischkammer oder dem Diffusor eine Verteilkammer vorgesehen sein, die die Verbindung von der Mischkammer zu allen Strahlaustrittsöffnungen gewährleistet. Vorteilhafterweise sind zur gleichmäßigen Versorgung der Ringkammer oder Wasserverteilkammer mehrere Düsenkanäle und Mischkammern vorgesehen. Je nach Größe der Brause hat sich hierbei gezeigt, dass die gewünschte Durchflussmenge an Wasser-Luftgemisch über eine größere Anzahl der Düsenkanäle und Mischkammern erzielbar ist, während eine Vergrößerung der Durchflussquerschnitte keine ausreichende Luft-WasserVermischung und damit einhergehende Wasserersparnis verspricht.A further embodiment of the invention provides that an annular chamber or water distribution chamber is arranged in front of the jet outlet openings of the shower head for distribution of the fluid mixture or water-air mixture. Usually, the jet outlet openings, through which the water-air mixture is to be dispensed, are arranged annularly around a center of the jet former. In order to be able to supply all the jet outlet openings with the water-air mixture at the low intended heights of the shower head, a distribution chamber must be provided in the flow direction to the mixing chamber or the diffuser, which ensures the connection of the mixing chamber to all jet outlet openings. Advantageously, a plurality of nozzle channels and mixing chambers are provided for the uniform supply of the annular chamber or water distribution chamber. Depending on the size of the shower has shown here that the desired flow rate of water-air mixture over a larger number of nozzle channels and mixing chambers is achievable, while increasing the flow cross-sections does not promise sufficient air-water mixture and concomitant water savings.
Weiterhin ist es möglich, den Düsenkanal als Einzelteil oder Baueinheit vorzusehen, das gedichtet in die Wasserführung einsetzbar oder einschraubbar ist. Da Untersuchungen ebenfalls gezeigt haben, dass der Belüftungsgrad ebenfalls vom Abstand der Austrittsöffnung des Düsenkanals und dem kleinsten Durchflussquerschnitt der Mischkammer abhängig ist, kann somit dieser Abstand variiert und je nach gewünschtem Strahlbild und Belüftungsgrad eingestellt werden.Furthermore, it is possible to provide the nozzle channel as a single part or assembly that can be used sealed or screwed into the water supply. Since investigations have also shown that the degree of ventilation is also dependent on the distance of the outlet opening of the nozzle channel and the smallest flow cross section of the mixing chamber, thus this distance can be varied and adjusted depending on the desired spray pattern and ventilation level.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels und unter Bezugnahme auf die Zeichnung näher erläutert. Gleichwirkende Elemente sind dabei in den Figuren mit denselben Bezugszeichen gekennzeichnet. Im Einzelnen zeigen dabei:
- Fig. 1
- einen Schnitt durch einen erfindungsgemäßen Brausekopf
- Fig. 2
- das Detail II aus
Fig. 1 in vergrößerter Darstellung
- Fig. 1
- a section through a shower head according to the invention
- Fig. 2
- the detail II off
Fig. 1 in an enlarged view
Zur Erzeugung belüfteter Brausestrahlen ist in dem Brausekopf 1 eine Wasserführung 4 angeordnet, die mit einer Mischkammer 6 in Verbindung steht. Außerdem steht die Mischkammer 6 mit einem Luftkanal 5 in Verbindung, dessen Luftansaugöffnung im Brausekopfgehäuse 2 angeordnet ist. Hierzu weist die Mischkammer 6 eine Öffnung 62 auf, deren Form der jeweils notwenigen Geometrie der Wasserführung 4 oder des Brausekopfgehäuses 2 angepasst sein kann.
Das Wasser für die belüfteten Strahlen gelangt über einen Düsenkanal 7, in welchem die Durchflussgeschwindigkeit des Wassers aufgrund des verengten Querschnitts extrem erhöht wird, aus der Wasserführung 4 in die Mischkammer 6. Die Anreicherung des Wassers mit Luft erfolgt dabei nach dem Wirkprinzip einer Wasserstrahlpumpe. Das Wasser dient als Treibmedium, das mit hoher Geschwindigkeit aus der Austrittsöffnung 71 des Düsenkanals 7 bzw. der Treibdüse in die Mischkammer 6 - oder auch Fangdüse genannt - einströmt. Dort trifft das Wasser auf die sich hier befindliche Luft, die als Saugmedium dient. Durch innere Reibung und Turbulenzen entsteht eine Scherspannung in der Grenzschicht zwischen dem schnellen Wasser und dem wesentlich langsameren Saugmedium Luft, so dass das Saugmedium beschleunigt und mitgerissen wird. Da auch die Luft in der Mischkammer 6 beschleunigt wird, entsteht auch für das Saugmedium ein Druckabfall, so dass Luft aus dem Luftkanal 5 nachgefördert wird.To produce aerated spray jets, a
The water for the aerated jets passes through a
Innerhalb der sich verjüngenden Mischkammer 6 wird die Geschwindigkeit des Wasser-Luftgemischs bis zum kleinsten Durchflussquerschnitt 61 am Ende der Mischkammer 6 erhöht und anschließend in einem Diffusor 8, dessen Querschnitt sich in Fließrichtung des Fluidgemischs stetig erweitert, wieder reduziert. Hierbei wird die Druckenergie des Wasser-Luftgemischs gleichzeitig erhöht.
Im Anschluss an den Diffusor 8 tritt das Wasser-Luftgemisch in eine Wasserverteilkammer 9 ein, die in Verbindung mit den zugehörigen Wasseraustrittsöffnungen 33 steht. Hiermit kann das Wasser-Luftgemisch optimal über die ganze gewünschte Strahlbildnerfläche verteilt werden.
Aufgrund der Geometrie des Düsenkanals 7, der Austrittsöffnung 71, der Mischkammer 6 und des Luftkanals 5 ist über das zuvor beschriebene Prinzip trotz minimaler Bauhöhe des Brausenkopfs 1 eine effiziente Anreicherung des Wassers mit Luft möglich.
Damit wird eine Steigerung des Volumenstroms trotz geringer Wassermenge ermöglicht. Durch den zugefügten Luftanteil im Wasser und der daraus resultierenden Steigerung der Strahlenergie sind gleiche Wurfweiten wie bei unbelüfteten Strahlen jedoch bei geringerer Wassermenge möglich, Dadurch wird eine Wassereinsparung und somit eine Energieeinsparung bei gleichem Duschkomfort möglich.Within the tapered
Subsequent to the
Due to the geometry of the
This makes it possible to increase the volume flow despite the small amount of water. Due to the added proportion of air in the water and the resulting increase in the beam energy, the same throwing distances are possible as with unventilated beams but with a smaller amount of water. This makes it possible to save water and thus save energy while maintaining the same level of showering comfort.
Die Mischkammer 6 und die zugehörige Öffnung 62 für die Luftansaugung sind dabei den geometrischen Gegebenheiten angepasst. Alternativ könnte die Öffnung auch als radiale Öffnung in der Mischkammerwand vorgesehen sein.
The mixing
- 11
- Brausekopfshower head
- 22
- BrausekopfgehäuseShowerhead housing
- 33
- Strahlbildnerbeamformer
- 3131
- WasseraustrittsöffnungWater outlet
- 3232
- WasseraustrittsöffnungWater outlet
- 3333
- WasseraustrittsöffnungWater outlet
- 44
- Wasserführungwater flow
- 55
- Luftkanalair duct
- 66
- Mischkammermixing chamber
- 6161
- engster Durchflussquerschnitt der Mischkammernarrowest flow cross-section of the mixing chamber
- 6262
- Lufteintrittsöffnung der MischkammerAir inlet opening of the mixing chamber
- 77
- Düsenkanal für WasserNozzle channel for water
- 7171
- Austrittsöffnung DüsenkanalOutlet nozzle channel
- 88th
- Diffusordiffuser
- 99
- WasserverteilkammerWater distribution chamber
- 1010
- Betätigungseinrichtungactuator
Claims (10)
- Shower head (1) for a sanitary shower, having- a shower head housing (2),- a jet former having a multiplicity of jet outlet openings (31, 32, 33),- at least one water guideway (4) which is arranged in the shower head housing (2) and via which water passes to the jet outlet openings (31, 32, 33) or to a specific number of jet outlet openings (31, 32, 33),- at least one aerating device which comprises an air-inlet opening and an air channel (5),- and at least one mixing chamber (6) which is arranged in the shower head housing (2) and is in fluidic communication with the water guideway (4) and the aerating device or the air channel (5),wherein to connect the water guideway (4) and the mixing chamber (6) there is arranged at least one nozzle channel (7), the mixing chamber (6) being provided in the form of a pipe having a flow cross-section which is larger than/abruptly widened with respect to the nozzle channel (7),- and the mixing chamber (6) tapers towards its end in the flow direction of the water,characterised in that
the nozzle channel (7) and/or the outlet opening (71) of the nozzle channel (7) have a polygonal cross-section, especially a rectangular or square cross-section. - Shower head (1) according to claim 1, characterised in that the outlet opening (71) of the nozzle channel (7) is arranged upstream of or inside the mixing chamber (6).
- Shower head (1) according to claim 1 or 2, characterised in that each throughflow cross-section of the mixing chamber (6) is abruptly widened with respect to the throughflow cross-section of the nozzle channel.
- Shower head (1) according to any one of the preceding claims, characterised in that the mixing chamber (6) or the smallest throughflow cross-section (61) of the mixing chamber (6) is followed by a diffuser (8) which widens towards its end in the flow direction of the water.
- Shower head (1) according to claim 4, characterised in that the mixing chamber (6) and diffuser (8) are provided in one piece.
- Shower head (1) according to any one of the preceding claims, characterised in that the ratio of the throughflow cross-section of the nozzle channel (7) to the smallest throughflow cross-section (61) of the mixing chamber (6) is arranged to be less than 1:3.
- Shower head (1) according to any one of the preceding claims, characterised in that to distribute the fluid mixture or water/air mixture emerging from the mixing chamber (6) or from the diffuser (8), an annular chamber or water distribution chamber (9) is provided upstream of the jet outlet openings (33) of the shower head (1) - seen in the flow direction.
- Shower head (1) according to claim 7, characterised in that a plurality of nozzle channels (7) and mixing chambers (6) are provided for each annular chamber or water distribution chamber (9).
- Shower head (1) according to any one of the preceding claims, characterised in that the nozzle channel (7) can be inserted or screwed sealingly into the water guideway (4) as a single part or a structural unit.
- Shower head (1) according to any one of the preceding claims, characterised in that the spacing between the outlet opening (71) of the nozzle channel (7) and the smallest throughflow cross-section (61) of the mixing chamber (6) is variably adjustable.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011114945A DE102011114945A1 (en) | 2011-10-06 | 2011-10-06 | shower head |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2578319A1 EP2578319A1 (en) | 2013-04-10 |
EP2578319B1 true EP2578319B1 (en) | 2017-07-12 |
Family
ID=47018713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12006844.0A Active EP2578319B1 (en) | 2011-10-06 | 2012-10-02 | Sprinkler head |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2578319B1 (en) |
DE (1) | DE102011114945A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015002780A1 (en) * | 2015-03-06 | 2016-09-22 | Grohe Ag | Shower with nozzle for adding air |
CN107595179A (en) * | 2017-10-17 | 2018-01-19 | 北京沐羽科技有限公司 | Using the hand washing device and atomized water generation module of atomized water |
CN110841812B (en) * | 2019-11-12 | 2024-08-06 | 九牧厨卫股份有限公司 | Hydraulically-driven spray gun shower head |
DE102020118091A1 (en) | 2020-07-09 | 2022-01-13 | Lixil Corporation | Process for the additive manufacturing of a discontinued element |
CN113182087A (en) * | 2021-05-07 | 2021-07-30 | 上海建科检验有限公司 | Multifunctional stable oxygen-enriched water-saving shower system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2361688A1 (en) * | 2010-02-18 | 2011-08-31 | Toto Ltd. | Shower apparatus |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE87648C (en) * | ||||
JPS5286858A (en) * | 1976-01-10 | 1977-07-19 | Tsd Kk | Shower |
US5111994A (en) | 1987-07-30 | 1992-05-12 | Emhart Inc. | Flow booster apparatus |
CH686409A5 (en) | 1992-12-11 | 1996-03-29 | Jorg Mafli | Shower head. |
IT1305193B1 (en) * | 1998-11-19 | 2001-04-10 | Gevipi Ag | SHOWER HEAD TO DELIVER A JET OF AERATED WATER THROUGH VENTURO EFFECT. |
DE19901704A1 (en) | 1999-01-18 | 2000-08-03 | Hansgrohe Ag | Sanitary object, in particular hand shower, with a switching device for influencing a liquid flow |
US7427037B2 (en) * | 2002-12-13 | 2008-09-23 | Frazee John S | Anti-clogging showerhead device |
WO2011039647A2 (en) * | 2009-09-29 | 2011-04-07 | Jmi Group Limited | Shower head |
-
2011
- 2011-10-06 DE DE102011114945A patent/DE102011114945A1/en not_active Withdrawn
-
2012
- 2012-10-02 EP EP12006844.0A patent/EP2578319B1/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2361688A1 (en) * | 2010-02-18 | 2011-08-31 | Toto Ltd. | Shower apparatus |
Also Published As
Publication number | Publication date |
---|---|
EP2578319A1 (en) | 2013-04-10 |
DE102011114945A1 (en) | 2013-04-11 |
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