Patent Application
20160082448
The invention concerns a water feature nozzle that comprises at least two water guides that are independent from each other, wherein at least one outlet opening for each water guide is provided, respectively. By means of these water guides, controllable different water volume streams, i.e., variable water quantities per time unit, can be guided to the outlet openings of the water guides in order to generate water patterns that can be varied at the nozzle outlet of the water feature nozzle.
Such a water feature nozzle in accordance with the preamble of claim 1 is disclosed in U.S. Pat. No. 6,250,570 B1. This nozzle has a central water guide into which several outlet openings of a second water guide open tangentially. By means of the water volume stream of the second water guide, a swirl is imparted to the first water volume stream while it is mixed with the second water volume stream and the rotating mixed water volume stream is then moved farther to the nozzle outlet. Here, different water patterns can result, for example, a sharply delimited high jet or a wide jet that fans out early on, depending on how great the imparted swirl. This is variable by the control of the two water volume streams.
The invention has the objective to provide a water feature nozzle that enables excellent variability with simplified configuration. This objective is solved by a water feature nozzle with the features of claim 1.
Due to the configuration of the water feature nozzle with an inner water guide that is surrounded in such a way by at least one outer water guide that both water guides guide parallel oriented but separate water streams up to a point immediately before the nozzle outlet, the basic configuration of the nozzle is simple but the variation possibility is great due to the variation of the water volume streams or water quantities per time unit that are guided through the different water guides.
Preferred and constructively simple, the water guides are formed by tubes that are arranged within each other, wherein the outer diameter of the innermost tube is smaller than the inner diameter of the tube surrounding it so that between the two tubes a free space is provided that forms an outer water guide. The construction is not limited to two water guides. It is also possible to arranged three or more tubes within each other.
In an alternative embodiment, a tube is provided as an inner water guide but several outer water guides surrounding it are provided which also form a type of water crown with each other. The tubes or water guides must not be embodied mandatorily to have a circular shape but a circular shape is preferred with regard to design considerations, fluid mechanics, and for reasons of stability.
Also preferred, the water guides or tubes are concentrically arranged. However, it is also possible to configure the water guides in a concentric or eccentric arrangement so as to be movable, for example, slidable, relative to each other so that a further way of affecting the jet pattern is provided. For example, when the outer tube is caused to eccentrically rotate in a controlled fashion about the inner tube, the generated water jet also circulates about the center of the nozzle.
The water supply or water feed can be realized, for example, for the inner tube from the bottom while the water feed for the outer tube is realized laterally. For the water supply also other variants than the aforementioned one are possible. The additional use of a flow aligning device for water calming in one or several of the water guides can be expedient also.
Two or even more separately controllable pumps are connected or can be connected to the water feed. By the ratio of the respective volume streams, the water patterns can be varied already, wherein the shape of the nozzle head can also be partially decisive for the shape of the water pattern.
The nozzle head is preferably formed by a nozzle head that, in turn, is preferably containing one or several flow deflectors. Moreover, variable water patterns can be generated and/or a desired water pattern can be optimized for the inner and/or outer water guide by adjustment of the respective flow deflector.
When an inner flow deflector is present, it can be preferably designed such that it transforms the inner water jet from a water column to a ring of water. This is done, for example, by a mushroom-shaped or conical configuration of the flow deflector. Inasmuch as an outer flow deflector is present, it can be designed, for example, as a cap and can deflect the outer water stream inwardly and make it narrower. When two flow deflectors are present, they can be designed preferably such that they guide the two water streams toward each other. By changing the height of the two flow deflectors relative to each, very different water patterns can be obtained. Preferably, a centering aid is to be provided for the flow deflector in order to position it exactly.
When the volume stream as a function of pressure in the outer tube is greater than that in the inner tube, a slim fountain-like jet shape is obtained. In case of a greater volume stream in the inner tube relative to the outer tube, on the other hand, a wide overhanging fountain in the form of a chalice of only minimal height is generated.
It is preferred to employ pumps that are electronically controllable, for example, by means of a bus system, by means of which the water patterns during operation can be varied continuously. This can be done, for example, also as a function of supplied music whose signals can be tapped immediately. Also, it may be expedient to design the flow deflectors so as to be electronically controllable in order to realize variation possibilities also here in a simple way. When an embodiment with water guides that are movable relative to each other or about each other is selected, this movement can also be electronically controlled for influencing the water pattern.
Further advantages and details result from the dependent claims and an embodiments that is illustrated in the drawings and is described in the following.
It is shown in:
The illustrated water feature nozzle comprises an inner water guide 1 that is formed by an inner tube 2 and an outer water guide 3 surrounding it, formed by the outer wall of the inner tube 2 as well as an outer tube 4. The water supply to these two water guides 1, 3 is realized by connectors wherein a bottom connector 5 is provided for the inner water guide 1 and a lateral connector 6 for the outer water guide 3. Separate pumps, not illustrated, are connected to the two connectors 5, 6. In the lower area of the inner water guide 1, there is also a flow aligning device 7 which calms the flow and imparts to it a uniform upward direction. For the outer water guide 3 this is automatically done due to the more narrow annular channel.
The upper end of the water feature nozzle is formed by a nozzle head 8 which surrounds seal-tightly the outer water guide 3 in the illustrated embodiment. The nozzle head 8 forms a nozzle outlet 9 and comprises an outer flow deflector 10 which is formed with an edge and a central opening. An inner flow deflector 11 is provided also for the inner water guide 1. Both flow deflectors 10, 11 are adjustable in axial direction A, i.e., are adjustable in regard to height and vary in this way the shape and size of the outlet opening 13 of the inner water guide 1 and of the outlet opening 14 of the outer water guide 3. By means of a centering aid 15, here realized by a centering screw, the inner flow deflector 11 can be centered. The same possibility is provided by means of a further centering aid 16 for the outer flow deflector 10.
The volume streams of the pumps, not illustrated, are preferably changeable by control via an electronic bus system by means of which the water patterns can be continuously varied even during operation. For example, the jet pattern of a wide open chalice illustrated in
The water feature nozzle according to the invention is constructively simple to realize while it is extremely stable and precisely adjustable. The variation possibilities by means of the supplied volume streams V are considerable.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10 2013 005 972.0 | Apr 2013 | DE | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/EP2014/000323 | 2/6/2014 | WO | 00 |
