EP2969234B1 - Atomizer nozzle for a sanitary water outlet and sanitary outlet fitting with a water outlet - Google Patents

Description

The present invention relates to a spray nozzle for a sanitary water spout, for atomizing pressurized water, which atomizer nozzle has a swirl chamber in which at least one oriented transversely to the nozzle longitudinal axis and tangentially into the swirl chamber feed channel, each supply channel at least one inlet channel upstream in the flow direction and wherein the swirl chamber tapers in the outflow direction in the direction of a nozzle channel at the Kanalendbereich the water jet exits into the atmosphere.

The invention also relates to a sanitary outlet fitting with a water outlet, which has at least one atomizer nozzle of the type mentioned.

From the WO 2012/055051 A1 already a device for spraying a pressurized liquid is already known, which can serve as a mouthpiece of a sanitary outlet fitting or shower head. The prior art device has a central liquid supply passage extending along the device axis. At a distance around the device axis around a plurality of vortex chambers are provided, each having an inlet for supplying the liquid into the respective vortex chamber and an outlet nozzle for the exit of a liquid jet from the vortex chamber. The swirl chambers are connected to the supply channel via inlet channels, which are arranged substantially transversely to the device axis. Each of the outlet nozzles is arranged obliquely to the longitudinal axis of the device so that liquid jets emerging from the outlet nozzles in a predetermined Distance from the outlet nozzles meet. The previously known device can be used advantageously wherever a good cleaning performance is desired with a low volume flow. However, the previously known device has a comparatively complex structure, which can complicate the manufacture of the device. In addition, the spray pattern of the emerging from the prior art device water jet is still in need of improvement.

From the WO 2004/016358 A1 a spray nozzle of the type mentioned for a sanitary water spout for atomizing pressurized water is known. The atomizer nozzle has a circular swirl chamber, into which a feed channel oriented transversely to the nozzle longitudinal axis and tangentially enters the swirl chamber, wherein each feed channel is preceded by at least one inlet channel in the flow direction and wherein the swirl chamber tapers in the outflow direction to a nozzle channel Kanalendbereich the water jet in the atmosphere exits. However, the structure of this prior art atomizer nozzle is also relatively complex, which may for example make it difficult to manufacture the atomizer nozzle. Furthermore, the jet pattern of the exiting water jet is still in need of improvement.

It is therefore an object to provide an atomizer nozzle of the type mentioned, which can be produced with little effort and which is characterized by a homogeneous jet pattern of the exiting water jet. In addition, there is also the task of creating a sanitary outlet fitting with a water outlet, which can be produced with little effort with respect to their water outlet and which is characterized by a homogeneous jet pattern of the exiting water jet.

The achievement of this object is in the atomizer nozzle of the type mentioned in the features of the current claim. 1

The features of the preamble of claim 1 are from the document WO2011 / 055036 A1 known.

The atomizer nozzle according to the invention is intended for a sanitary water spout to atomize a pressurized water and thereby to form a homogeneous jet of water. The atomizer nozzle according to the invention has a swirl chamber in which at least one feed channel oriented transversely to the nozzle longitudinal axis and entering the swirl chamber tangentially opens, such that the water flowing in the swirl chamber experiences a swirl about the swirl chamber longitudinal axis. The swirl chamber tapers in the outflow direction toward a nozzle channel, so that in the swirl chamber in rotation about the swirl chamber longitudinal axis staggered water jet is merged into smaller and smaller circular paths through the nozzle channel, until the water jet at the Kanalendbereich the nozzle channel into the atmosphere emerges where forms a fluid slat, which bursts at its free peripheral edge area in such fine individual droplets that a homogeneous and formed from fine water droplets water jet is formed. In the case of the atomizer nozzle according to the invention, it is provided that the atomizer nozzle has a nozzle body which has an inlet-side insertion opening, that at least one groove intended for forming an inlet channel is provided on the peripheral wall of the insertion opening, that a stopper into the insertion opening up to an annular shoulder encircling the inner circumference can be used, which annular shoulder has at least one provided for forming a feed channel groove, and that the plug forms the plug facing channel wall of the inlet and feed channels. The atomizer nozzle according to the invention has it a nozzle body having an inflow-side insertion opening. At least one groove, which is intended to form an inlet channel, is provided on the peripheral wall of the insertion opening. The plug can be used up to an inner circumferential circumferential annular shoulder, which annular shoulder is interrupted by at least one groove which is intended to form a feed channel. After insertion of the plug in the inflow-side insertion opening of the nozzle body, the plug is on the outside of the grooves so that this plug forms the plug facing the channel wall of the inlet and feed channels. This embodiment of the atomizer nozzle according to the invention, the production thereof is substantially simplified.

So that the water flow staggered in the swirl chamber into a rotation about the swirl chamber longitudinal axis can be brought together in ever smaller circular paths in the direction of the nozzle channel, a preferred embodiment according to the invention provides that the swirl chamber has the shape of a funnel in the direction of the nozzle channel. In this case, a particularly advantageous embodiment according to the invention provides that the swirl chamber has the shape, in particular, of a conical or rotationally hyperbolic funnel.

A preferred embodiment according to the invention provides that in the swirl chamber protrudes a central and oriented in the nozzle longitudinal direction projection. The projecting into the swirl chamber projection favors that along the swirl chamber wall in a rotational movement offset water jet can not escape into the chamber center of the swirl chamber.

Thus, in particular, the incoming from several feed channels Water flows can not influence each other and can swirl uncontrollably, it is advantageous if the projection projects beyond a plane formed by the mouth openings of the feed channels in the direction of the nozzle channel.

It is particularly advantageous if the projection is provided on the swirl chamber facing end side of the plug.

To further simplify the production and construction of the atomizer nozzle according to the invention, it is advantageous if the at least one inlet channel of each feed channel is oriented in the longitudinal direction of the nozzle.

In order to be able to easily guide the water coming from the water supply network to the at least one feed channel oriented transversely to the longitudinal axis of the nozzle, it is advantageous if each inlet channel is preceded by an inlet channel oriented in the longitudinal direction of the nozzle in the flow direction.

The jet pattern of the water jet emerging from the atomizer nozzle according to the invention is additionally improved if the atomizer nozzle has a plurality of feed channels distributed preferably at uniform intervals in the circumferential direction.

A preferred embodiment according to the invention provides that the atomizer nozzle is designed as a hollow cone nozzle. The water flowing in from the line network flows tangentially into the swirl chamber of the atomizer nozzle designed as a hollow cone nozzle, whereby a fluid vortex arises there. The water flowing in circular paths through the nozzle channel forms a lamella at the outflow-side channel end region of the nozzle channel, which lumps at its end edge into individual droplets.

In order to be able to shape the water flowing out as a hollow cone, it is expedient if the outflow-side channel end region of the nozzle channel has a cross-sectional widening that widens in the direction of the outflow end and preferably has a spherical configuration.

In the outlet fitting of the type mentioned above, the solution according to the invention is that its water outlet at least one atomizer nozzle according to claims 1 to 8.

Here, preferred application examples according to the invention provide that the water outlet is designed as a shower head or as a jet regulator.

A preferred embodiment according to the invention provides that the outlet designed as a jet outlet water outlet is mounted on a sanitary outlet fitting.

In order to let flow out of the sanitary outlet fitting a water jet, which despite the comparatively low volume flow has a sufficiently wide beam cross-section, it is advantageous if the water outlet has at least two atomizer nozzles, which are arranged distributed over the cross section of the water outlet.

The preparation of the outlet fitting in the region of its water outlet is substantially simplified if the water outlet has a housing or a body, and if at least one insertion opening is provided in the housing or the body into which the nozzle body of a spray nozzle is preferably detachably insertable.

To be able to filter out the dirt particles possibly entrained in the water before such dirt particles impair the function of the atomizer nozzles provided in the water outlet, it is advantageous if the jet regulator is preceded by an attachment or filter screen and if the attachment or filter screen on the inflow side jet regulator end face preferably releasably attachable.

In order to distribute the water even with comparatively small atomizer nozzles well distributed over the entire line cross-section to let, it is advantageous if the water outlet carries at least three atomizer nozzles and if the atomizer nozzles are arranged on a preferably concentric to the shower head longitudinal axis circular path or in a linear array. A linear arrangement of the atomizer nozzles is suitable, for example, if the atomizer nozzles are to be arranged star-shaped relative to one another or if the atomizer nozzles are to be arranged in a rectangular water outlet in at least one line-shaped arrangement relative to one another.

The water emerging from the atomizer nozzles initially has the shape of a hollow cone, which is formed by a circular circumferential water wall. In order to provide the water in the cone interior of each hollow cone, and to promote the formation of a homogeneous beam over the beam cross-section, it is advantageous if the nozzle longitudinal axes of the atomizer nozzles are inclined to each other such that emerging from the nozzle liquid jets in a predetermined Distance from the nozzles meet.

In this case, a preferred embodiment according to the invention provides that the nozzle longitudinal axes of the atomizer nozzles are arranged at an angle of 1 degree to 10 degrees to the longitudinal axis of the water outlet and in particular to its housing longitudinal axis.

Further developments according to the invention will become apparent from the claims in conjunction with the drawings and the description of the figures. The invention will be described in more detail below with reference to the various embodiments in the drawings:

Figur 1:

eine, für einen sanitären Wasserauslauf bestimmte Zerstäuberdüse, die zum Formen bzw. Zerstäuben von unter Druck stehendem Wasser vorgesehen ist, wobei die Zerstäuberdüse hier in einer Draufsicht auf ihre Zuströmseite gezeigt ist,

Figur 2:

die Zerstäuberdüse aus Figur 1 in einer Seitenansicht,

Figur 3:

die Zerstäuberdüse aus Figur 1 und 2 in einer Draufsicht auf ihre Abströmseite,

Figur 4:

einen als Stopfen ausgebildeten Bestandteil der in den Figuren 1 bis 3 gezeigten Zerstäuberdüse in einem Längsschnitt,

Figur 5:

den als Stopfen ausgebildeten Bestandteil aus Figur 4 in einem Längsschnitt,

Figur 6:

einen als Düsenkorpus vorgesehenen Bestandteil der in den Figuren 1 bis 3 gezeigten Zerstäuberdüse in einem perspektivischen Längsschnitt,

Figur 7:

den als Düsenkorpus vorgesehenen Bestandteil aus Figur 6 in einem Längsschnitt,

Figur 8:

die Zerstäuberdüse gemäß den Figuren 1 bis 3 in einem Längsschnitt durch ihre aus Stopfen und Düsenkorpus gebildeten Bestandteile,

Figur 9:

die längs geschnittene Zerstäuberdüse in einer Detail-Ansicht im Bereich des in den Düsenkorpus eingesetzten Stopfens,

Figur 10:

den als Düsenkorpus vorgesehen Bestandteil der Zerstäuberdüse gemäß den Figuren 1 bis 3 in einer Seitenansicht,

Figur 11:

den Düsenkorpus aus Figur 10 in einer Draufsicht auf die Zuströmseite,

Figur 12:

den Düsenkorpus aus Figur 10 und 11 in einer Draufsicht auf die Abströmseite,

Figur 13:

den Düsenkorpus aus den Figuren 10 bis 12 in einem perspektivischen Längsschnitt,

Figur 14:

den längsgeschnittenen Düsenkorpus in einer Detailansicht im Bereich eines zu einer Drallkammer führenden Zuführkanales,

Figur 15:

den Düsenkorpus aus Figur 10 bis 14 in einem Längsschnitt,

Figur 16:

den Düsenkorpus aus Figur 15 in einem Detail-Längsschnitt im Bereich einer abströmseitigen Hohlkegeldüse,

Figur 17:

einen, für eine sanitäre Auslaufarmatur bestimmten Wasserauslauf, der hier als Strahlregler ausgestaltet ist, in einer Seitenansicht,

Figur 18:

den Strahlregler aus Figur 17 in einer Draufsicht auf die Zuströmseite, wobei hier ein dem Strahlregler vorgeschaltetes Filter- oder Vorssatzsieb erkennbar ist,

Figur 19:

den Strahlregler aus Figur 17 und 18 in einer perspektivischen Draufsicht auf dessen Zuströmseite,

Figur 20:

den Strahlregler aus Figur 17 bis 19 in einer Draufsicht auf die Zuströmseite, wobei das Filter- und Vorsatzsieb entfernt wurde,

Figur 21:

den Strahlregler aus Figur 17 bis 20 in einer perspektivischen Draufsicht auf seine Abströmseite,

Figur 22:

den Strahlregler aus Figur 17 bis 21 in einer Draufsicht auf seine Abströmseite,

Figur 23:

den Strahlregler aus Figur 17 bis 22 in einem Längsschnitt,

Figur 24:

den Strahlregler aus Figur 17 bis 23 in einer auseinandergezogenen Perspektivdarstellung seiner Bestandteile,

Figur 25:

den Strahlregler aus Figur 17 bis 24 in einer gegenüber Figur 24 gedrehten und auseinandergezogenen Perspektivdarstellung seiner Bestandteile,

Figur 26:

eine als Handbrause ausgestaltete Auslaufarmatur, die einen als Brausekopf ausgebildeten Wasserauslauf hat, wobei die Handbrause hier in einer perspektivischen Draufsicht auf die Abströmseite des Brausekopfes dargestellt ist,

Figur 27:

die Handbrause aus Figur 26 in einer Draufsicht auf die Abströmseite ihres Brausekopfes,

Figur 28:

den Brausekopf der in Figur 26 und 27 gezeigten Handbrause in einer Seitenansicht,

Figur 29:

den Brausekopf aus Figur 28 in einer Draufsicht auf die Zuströmseite,

Figur 30:

den Brausekopf aus Figur 28 und 29 in einer perspektivischen Draufsicht auf die Zuströmseite,

Figur 31:

den Brausekopf gemäß den Figuren 28 bis 30 in einer auseinandergezogenen Perspektivdarstellung seiner Bestandteile,

Figur 32:

den Brausekopf gemäß den Figuren 28 bis 31 in eine Draufsicht auf seine Abströmseite, und

Figur 33:

den Brausekopf aus Figur 28 bis 32 in einem Längsschnitt.

It shows:

FIG. 1:

a sanitary spout intended for atomizing pressurized water, said atomizer nozzle being shown here in plan view on its upstream side;

FIG. 2:

the atomizer nozzle off FIG. 1 in a side view,

FIG. 3:

the atomizer nozzle off FIGS. 1 and 2 in a plan view of its downstream side,

FIG. 4:

a trained as a stopper part of the in the FIGS. 1 to 3 shown spray nozzle in a longitudinal section,

FIG. 5:

the formed as a plug component FIG. 4 in a longitudinal section,

FIG. 6:

a provided as a nozzle body part of the in the FIGS. 1 to 3 shown atomizer nozzle in a perspective longitudinal section,

FIG. 7:

the intended as a nozzle body component FIG. 6 in a longitudinal section,

FIG. 8:

the atomizer nozzle according to the FIGS. 1 to 3 in a longitudinal section through its components formed from stopper and nozzle body,

FIG. 9:

the longitudinally cut atomizer nozzle in a detail view in the region of the plug inserted into the nozzle body,

FIG. 10:

provided as a nozzle body part of the spray nozzle according to the FIGS. 1 to 3 in a side view,

FIG. 11:

the nozzle body off FIG. 10 in a plan view of the inflow side,

FIG. 12:

the nozzle body off FIGS. 10 and 11 in a plan view of the downstream side,

FIG. 13:

the nozzle body from the FIGS. 10 to 12 in a perspective longitudinal section,

FIG. 14:

the longitudinally cut nozzle body in a detail view in the region of a feed channel leading to a swirl chamber,

FIG. 15:

the nozzle body off FIGS. 10 to 14 in a longitudinal section,

FIG. 16:

the nozzle body off FIG. 15 in a detail longitudinal section in the region of a downstream hollow cone nozzle,

FIG. 17:

a, intended for a sanitary outlet fitting water outlet, which is designed here as a jet regulator, in a side view,

FIG. 18:

off the jet regulator FIG. 17 in a plan view of the inflow side, in which case a the jet regulator upstream filter or Vorsatzsieb is recognizable,

FIG. 19:

off the jet regulator FIGS. 17 and 18 in a perspective top view on the inflow side,

FIG. 20:

off the jet regulator FIGS. 17 to 19 in a plan view on the inflow side, wherein the filter and attachment screen has been removed,

FIG. 21:

off the jet regulator FIGS. 17 to 20 in a perspective plan view of its downstream side,

FIG. 22:

off the jet regulator FIGS. 17 to 21 in a plan view of its downstream side,

FIG. 23:

off the jet regulator FIGS. 17 to 22 in a longitudinal section,

FIG. 24:

off the jet regulator FIGS. 17 to 23 in an exploded perspective view of its components,

FIG. 25:

off the jet regulator FIGS. 17 to 24 in one opposite FIG. 24 rotated and exploded perspective view of its components,

FIG. 26:

a configured as a hand shower outlet fitting, which has a designed as a shower head water outlet, the hand shower is shown here in a perspective plan view of the downstream side of the shower head,

FIG. 27:

the hand shower off FIG. 26 in a plan view of the downstream side of her shower head,

FIG. 28:

the shower head of in FIGS. 26 and 27 shown hand shower in a side view,

FIG. 29:

the shower head off FIG. 28 in a plan view of the inflow side,

FIG. 30:

the shower head off FIGS. 28 and 29 in a perspective plan view of the inflow side,

FIG. 31:

the shower head according to FIGS. 28 to 30 in an exploded perspective view of its components,

FIG. 32:

the shower head according to FIGS. 28 to 31 in a plan view of its downstream side, and

FIG. 33:

the shower head off FIGS. 28 to 32 in a longitudinal section.

In the FIGS. 1 to 16 a spray nozzle 1 is shown, which is intended for a sanitary water spout for atomizing pressurized water. The atomizing nozzle 1 should nevertheless form a voluminous homogeneous stream of water from a small volume flow.

The atomizer nozzle 1 has a swirl chamber 2 which on the inflow side has a chamber section 3 which is essentially cylindrical or disk-shaped in the clear cross section. In the swirl chamber 2 opens at least one transverse and preferably oriented at right angles to the longitudinal axis of the nozzle and tangentially in the swirl chamber 2 incoming feed 4.

As in the plan view in FIG. 11 can be seen, in each of which a feed channel forming grooves 16 are shown, open in the swirl chamber 2 here several feed channels 4, which are equally spaced in the circumferential direction. The swirl chamber 2 tapers in the outflow direction in a funnel shape in the direction of a nozzle channel 5, which nozzle channel 5 at its outflow-side channel end region has a cross-sectional widening 6 widening in the direction of the outflow end, which is designed to be spherical or rounded here. The funnel-shaped section 9 of the swirl chamber is designed in its clear cross section so that the swirl chamber in the direction of the nozzle channel 5 has the shape of a conical or rotationally hyperbolic funnel.

Thus, the flowing out of the channel openings of the feed channels 4 water flows can not affect unfavorably, is in the swirl chamber 2 before a central and oriented in the nozzle longitudinal direction projection 8 before. As in FIG. 8 can be seen, this projection 8 projects beyond a through the mouth openings of the feed channels 4 imaginary plane in the direction of the nozzle channel 5.

The atomizer nozzle 1 shown here has a nozzle body 10 which has an inflow-side insertion opening 11. On the peripheral wall of the insertion opening 11 is at least one intended to form an inlet channel groove 12 is provided. In this case, each feed channel 4 is preceded by an inlet channel 13 oriented in the longitudinal direction of the nozzle in the flow direction. Into the insertion opening 11, a plug 14 can be used up to a circumferentially encircling annular shoulder 15. The annular shoulder 15 is interrupted by at least one groove 16, which is provided to form a feed channel 4. While the outer periphery of the plug 14 closes the at least one groove 12 to an inlet channel 13, the end face of the plug 14 closes the at least one groove 16 to a feed channel 4. At the swirl chamber 2 facing end face of the plug 14, the projection 8 is provided. The atomizer nozzle 1 has a plurality of feed channels and here three feed channels 4, which are distributed in the circumferential direction at regular intervals from each other.

In the FIGS. 17 to 25 is shown as a water outlet of a not shown here sanitary outlet fitting certain jet regulator 17, the more of the in FIGS. 1 to 16 having atomizer nozzles 1 shown. The in the FIGS. 17 to 25 shown jet regulator 17 has at least two, and preferably three atomizing nozzles 1, which are arranged distributed over the cross section of serving as a water outlet jet regulator 17. The jet regulator 17 has a housing 18, in which at least one insertion opening 7 is provided, into which the nozzle body 10 of a spray nozzle 1 is preferably detachably insertable. In the Figures 17 and 23 to 25 It can be seen that the jet regulator 17 is preceded by a header or filter screen 19. This attachment or filter screen 19 is here preferably releasably attachable to the inflow-side jet regulator end face. In FIG. 23 It can be seen that the nozzle longitudinal axes of the atomizer nozzles 1 provided in the jet regulator 17 are inclined relative to one another such that liquid jets emerging from the nozzles meet at a predetermined distance from the nozzles. In this case, the atomizer nozzles 1 define a nozzle longitudinal axis extending at an angle of 1 to 10 degrees to the longitudinal axis of the jet regulator 17 and in particular to its housing longitudinal axis.

From the jet regulator 17 shown here emerges formed from fine water droplets and generated from a small volume flow water jet, which is characterized by a homogeneous spray pattern and gives the impression of a voluminous water jet.

In the FIGS. 26 and 27 is designed as a hand shower 20 trained sanitary outlet fitting whose water outlet is designed as a shower head 21. The in the FIGS. 28 to 32 shown shower head 21 has at least two atomizer nozzles 1, which are arranged distributed over the cross section of the shower head 21. The shower head 21 has a housing or body 22, in which at least one insertion opening 23 is provided into which the nozzle body 10 of a spray nozzle 1 is preferably detachably insertable. In the shower head 21 more than three and in particular six atomizing nozzles 1 are provided, which are arranged on a circular path which extends concentrically to the shower head longitudinal axis. The nozzle longitudinal axes of the atomizer nozzles 1 provided in the shower head 21 are also inclined relative to one another such that liquid jets emerging from the nozzles meet at a predetermined distance from the nozzles. In this case, the nozzle longitudinal axes of the atomizer nozzles 1 define a longitudinal axis of the nozzle designed as a shower head 21 at an angle of 1 degree to 10 degrees to the longitudinal axis and in particular to the longitudinal axis of its body 22 extending nozzle longitudinal axis.

From the hollow cone nozzles 6 of the atomizing nozzles 1, the water exits in a spray cone of 15 degrees to 40 degrees. This forms a fluid lamella, which bursts at its free outline or end edge in individual droplets. These fluid droplets of the effluent from the atomizer 1 water unite to one over the entire beam cross-section homogeneous overall jet, which, despite its comparatively low flow rate, gives the impression of a voluminous water jet with the usual cleaning power.

From the embodiments according to the FIGS. 17 to 33 becomes clear that in the Fig. 1 to 16 shown atomizer nozzle 1 allows the modular design of the specific for a sanitary outlet fitting water outlet. Although the water passing through the atomizing nozzle 1 emerges as a hollow cone there, the oblique arrangement of a plurality of atomizing nozzles nevertheless forms a homogeneous water jet formed over the entire beam cross section of fine water droplets. From the FIGS. 2, 6, 7 and 8 It can be seen that the inflow-side edge region of the nozzle body has a nozzle body section 24 which widens against the inflow direction and which can form a solid sealing lip after the nozzle body has been inserted into the housing 18 or the body 22 of a water outlet. This formed by the portion 24 sealing lip combines a sealing function and a holding function in itself, which holds the nozzle body 10 practically barb-like manner in the housing 18 or in the body 22 of the water outlet. However, it is also possible to snub the nozzle body 10 into the insertion openings 7, 23 provided in the body 22 or in the housing 18 of the water outlet, to weld it or otherwise fix it in a releasable or non-detachable manner. It has been found that the nozzle channel 5 should have at its opening into the atmosphere channel opening a Düsenabrisskante 25, which has an angle equal to or less than 90 degrees in order to achieve the best possible atomization in the spray nozzle 1. In the detail view in Fig. 9 it can be seen that at least one preferably circumferential sealing and / or holding claw 26 is provided on the stopper 14, which holds this stopper 14 in the insertion opening 11 of the nozzle body 10. In the FIGS. 7 and 8 it becomes clear that preferably formed with a constant cross section portion 27 of the nozzle channel 5 is comparatively long and a length of at least 1/3 of the length of the nozzle body, preferably a length of 1/3 to 1/2 of the length of the nozzle body 10, having. Over the length of the nozzle channel 5 and its designed with constant cross-section 27, the length of the spray cone formed by the spray nozzle 1 can be determined and bundle the effluent water jet in addition. The individual components of the spray nozzle 1 can be produced inexpensively and reliably. Although the feed and inlet channels 4, 13 have a comparatively small cross-section, these components of the atomizer nozzle 1 can be manufactured with little effort and with sufficient precision. The atomizer nozzle 1 shown here allows the production of a water outlet, which facilitates a minimum water consumption and still allows a good and full-surface water wetting by means of the exiting water jet even at low pressures, for example 2 to 3 bar.

LIST OF REFERENCE NUMBERS

1

atomizer

2

swirl chamber

3

(cylindrical or disc-shaped) chamber section

4

feed

5

nozzle channel

6

hollow cone nozzle

7

insertion

8th

head Start

9

(funnel-shaped) chamber section

10

nozzle body

11

insertion

12

groove

13

inlet channel

14

Plug

15

annular shoulder

16

groove

17

aerator

18

casing

19

Attachment or filter screen

20

Handheld shower

21

shower head

22

corpus

23

insertion

24

section

25

Nozzle separation edge

26

Retaining claw

27

section

Claims (17)

1. Atomiser nozzle (1) for a sanitary water outlet, for the purpose of atomising pressurised water, which atomiser nozzle (1) has a swirl chamber (2) in which issues at least one feed channel (4), which is oriented transversely to the nozzle longitudinal axis and runs tangentially into the swirl chamber (2), wherein at least one inlet channel (13) is connected upstream of each feed channel (4) in the flow direction, and wherein the swirl chamber (2) tapers in the outflow direction in the direction of a nozzle channel (5), at the channel end region of which the water jet exits into the atmosphere, wherein the atomiser nozzle (1) has a nozzle body (10) which has an insertion opening (11) on the inflow side, and a plug (14) can be inserted into the insertion opening (11), and wherein the plug (14) forms the channel wall, facing the plug (14), of the inlet and feed channels (13, 4), characterised in that on the circumferential wall of the insertion opening (11) at least one groove (12) intended for the formation of an inlet channel (13) is provided, and the plug (14) is inserted as far as an annular shoulder (15) which extends around the inner circumference, which annular shoulder (15) has at least one groove (16) which is provided in order to form a feed channel (4).
2. Atomiser nozzle as claimed in claim 1, characterised in that the swirl chamber (2), in the direction of the nozzle channel (5), is in the form of a funnel, in particular a conical or rotationally hyperbolic funnel.
3. Atomiser nozzle as claimed in claim 1 or 2, characterised in that a central protrusion (8), which is oriented in the nozzle longitudinal direction, projects into the swirl chamber (2).
4. Atomiser nozzle as claimed in any one of claims 1 to 3, characterised in that the protrusion (8) is provided on the end face of the plug (14) which is faces the swirl chamber (2).
5. Atomiser nozzle as claimed in any one of claims 1 to 4, characterised in that the at least one inlet channel (13) of each feed channel (4) is oriented in the nozzle longitudinal direction.
6. Atomiser nozzle as claimed in any one of claims 1 to 5, characterised in that the atomiser nozzle (1) has a plurality of feed channels (4) which are distributed preferably at uniform intervals in the circumferential direction.
7. Atomiser nozzle as claimed in any one of claims 1 to 6, characterised in that the atomiser nozzle (1) is designed as a hollow-cone nozzle.
8. Atomiser nozzle as claimed in any one of claims 1 to 7, characterised in that the outflow-side channel end region of the nozzle channel (5) has a cross-sectional widening which widens in the direction towards the outflow end and is preferably rounded or spherical.
9. Sanitary outlet fitting with a water outlet which has at least one atomiser nozzle (1) as claimed in claims 1 to 8.
10. Outlet fitting as claimed in claim 9, characterised in that the water outlet is designed as a shower head (21) or as a jet regulator (17).
11. Outlet fitting as claimed in claim 10, characterised in that the jet regulator (17) designed as a water outlet can be installed in a sanitary outlet fitting on the outflow side.
12. Outlet fitting as claimed in any one of claims 9 to 11, characterised in that the water outlet (17, 21) has at least two atomiser nozzles (1) which are distributed over the cross-section of the water outlet.
13. Outlet fitting as claimed in any one of claims 9 to 12, characterised in that the water outlet has a housing (18) or a body (22), and in that at least one insertion opening (7; 23) is provided in the housing (18) or the body (22), into which insertion opening the nozzle body (10) of an atomiser nozzle (1) can be inserted preferably in a releasable manner.
14. Outlet fitting as claimed in any one of claims 9 to 13, characterised in that an attachment screen or filter screen (19) is connected upstream of the water outlet designed as a jet regulator (17), and in that the attachment screen or filter screen (19) can be fastened, preferably in a releasable manner, to the inflow-side end face of the jet regulator.
15. Outlet fitting as claimed in any one of claims 9 to 14, characterised in that the water outlet bears at least three atomiser nozzles (1), and in that the atomiser nozzles (1) are arranged on a circular path, running preferably concentrically to the longitudinal axis of the shower head, or are arranged in a linear arrangement.
16. Outlet fitting as claimed in any one of claims 9 to 15, characterised in that the nozzle longitudinal axes of the atomiser nozzles (1) are inclined in relation to one another such that liquid jets exiting from the atomiser nozzles (1) converge at a predetermined distance from the atomiser nozzles (1).
17. Outlet fitting as claimed in any one of claims 9 to 16, characterised in that the nozzle longitudinal axes of the atomiser nozzles (1) define a nozzle longitudinal axis which runs at an angle of 1 degree to 10 degrees to the longitudinal axis of the water outlet and, in particular, to the longitudinal axis of the housing or body thereof.

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