EP2129838A1

EP2129838A1 - Jet former

Info

Publication number: EP2129838A1
Application number: EP07846942A
Authority: EP
Inventors: Georg STÄDTLER
Original assignee: Neoperl GmbH
Current assignee: Neoperl GmbH
Priority date: 2007-02-28
Filing date: 2007-12-01
Publication date: 2009-12-09
Anticipated expiration: 2027-12-01
Also published as: WO2008104206A1; EP2129838B1; ATE467006T1; DE502007003684D1

Abstract

The invention relates to a jet former (2) disposed in the water outlet (4) of a sanitary outlet fitting (5), and a flow channel (6) having a noncircular clear channel cross-section, the channel longitudinal sides (7, 8) of which are configured longer for forming a flat jet compared to the narrow sides of the channel (9, 10). The jet former (2) according to the invention has a deflection bevel (11) configured as a cross-sectional constriction on one of the two longitudinal sides of the channel (7, 8) thereof, the bevel being aligned with the deflection direction thereof with a wall section of the interior circumferential wall defining the outlet channel (6), wherein the section is provided on the opposite longitudinal side (8) and configured as a rebounding surface (12). A water jet can be formed by means of the jet former (2) according to the invention, the jet following a desired cross-sectional shape predefined by the water outlet (4) across a distance that is as long as possible, without contracting due to the adhesion forces of the water, which would otherwise be optically perceivable in the form of an apparent pivoting motion of the water jet already after only a few centimeters of jet length.

Description

beamformer

The invention relates to a jet former, which is arranged in the water outlet of a sanitary outlet fitting and has a passage channel with a non-circular clear channel cross-section, the channel longitudinal sides are designed to be longer to form a flat jet compared to the channel narrow sides.

In the course of the ever-increasing range of design options for sanitary fittings and Sanitary fittings outlets play in addition to the well-known round circular cylindrical water outlets deviating forms, such as in particular rectangular cross-sections with ventilated or non-ventilated wide flat jets, an increasingly important role.

The aim of the fittings designer is to continue design elements of the sanitary fitting in the water jet of the exiting water, that is, angular, square or rectangular geometry of the fitting should be transferred to the outflowing water jet, if possible, to give a homogeneous overall appearance.

However, there is regularly the problem that it is not possible to resort to standardized and largely ventilated or unventilated standardized jet regulators, as described, for example, in European Standard EN 246, if possible from a rectangularly shaped fitting body or fitting outlet pipe transparent beam is to emerge, which has a square or wide, but flat and temporally stable contour, that is none Fluctuations or sudden fluctuating stall is subject.

There is therefore a particular object to provide a beam shaper of the type mentioned, which is able to form a beam with an independent of the pressure fluctuations of the public network as equal and constant appearance as possible and with little effort and m variants can be produced, with respect to the Water flow on the ^ respective application - such as bath filler or washbasin faucet - can be adjusted. In this case, the water jet should follow over a long path of a desired and predetermined by the outlet cross-sectional shape without contracting by adhesive forces of the water, which otherwise makes optically apparent in an apparent rotational movement of the water jet, which occurs after a few centimeters beam length.

The solution according to the invention consists of the features of the current claim 1. The beam former according to the invention has a passage channel which has on one of its two channel longitudinal sides a deflection bevel configured as a cross-sectional constriction, which in its deflection direction is provided on one on the opposite longitudinal side and formed as a baffle wall portion of the passage channel bounding inner peripheral wall is aligned. Since the deflection bevel is configured as a cross-sectional constriction, which projects into a subregion of the passage channel, a subset of the inflowing water flow is deflected in the direction of the opposite wall section serving as a baffle surface. Due to the design of this baffle surface, such as, for example, its inclination, curvature and spread as well as its m oriented outflow direction length, the When passing the sanitary outlet fitting, the water jet that meets and is guided along it must be significantly influenced in its appearance. It is essential that not the completely tapered water flow is deflected over the deflection bevel to the serving as a baffle wall section, but only a subset of this water flow, but then also affects the not guided over the deflection angle residual amount of water flow. The interaction of deflecting bevel on the one hand and impact surface on the other hand and the specific orientation and coordination on one another, which may also vary depending on the flow conditions and the design of the fitting body or fitting outlet, are decisive factors for influencing the water jet leaving the outlet fitting. who is able to fulfill the requirements demanded in the task.

In order to be able to divert the required subset in the best possible direction towards the wall section serving as a baffle surface, it is advantageous if the deflecting bevel has an outer contour rounded in the throughflow direction to its free longitudinal edge protruding into the passage channel.

In this case, an embodiment which can be produced in a particularly simple manner according to the invention provides that the deflection bevel projects in a chip-shaped manner over the channel longitudinal side.

In order to exert a flow-distributing, rectifying and / or flow-calming effect on the outflowing water jet and to promote the constancy of the water jet flowing off the impact surface, it is advantageous if at least one inlet grate or the like flow straightener in the throughflow direction is connected upstream of the passage channel. In order for this inlet grid or the like to be able to serve practically as a flow rectifier, it is advantageous if the

Lattice openings of at least one inlet grid are bounded by drawn in the flow direction flow guide walls.

An embodiment according to the invention provides that at least one inlet grid is arranged approximately m of the plane defined by one of the channel longitudinal sides. In this embodiment, the water flow passing through the inlet grid or the like is deflected in the direction of the passageway before this water jet can be shaped in the desired manner in the jet former m. In this case, a preferred embodiment according to the invention provides that the flow-through channel is preceded by an annular peripheral wall m in the flow-through direction, the two longitudinal sides of which are configured in each case as an inlet grid. This annular circumferential wall can be tight against the inner circumference of the outlet fitting, so that the water flow flowing in the direction of the jet former can only pass through the inlet grid provided on at least one of the longitudinal sides of the wall.

Another embodiment according to the invention provides that at least one inlet grid is arranged in a m approximately oriented transversely to the flow direction of the passage channel plane. Em such inlet grid can practically cover the inflow-side end opening of the passage channel.

It is possible that the jet former m is arranged in a deflection-free outlet end region of a sanitary outlet fitting. A preferred embodiment according to the invention, which in particular also the zeitgeschmack in the design derar- On the other hand, the jet former is arranged in the deflection zone of a preferably approximately right-angled water diversion.

The jet former according to the invention can be held in the water outlet of the sanitary outlet fitting, for example with at least one corresponding fastening screw. However, it is also possible for the jet former to be held, preferably releasably, in the water outlet of the outlet fitting by means of a latching connection.

However, a preferred embodiment according to the invention provides that the jet former is held by friction and preferably releasably in the water outlet of the outlet fitting. In order to promote the most secure and firm frictional connection of the jet former in the water outlet, it is advantageous if at least one circumferential sealing ring is provided between the jet former and water outlet, which preferably holds the jet former in a press fit in the water outlet.

The simple and cost-effective production of the jet former according to the invention is favored when the jet former is produced as a one-part or multi-part plastic injection molded part.

A development according to the invention provides that the passage cross-section of the passage channel m channel longitudinal direction on the downstream side is longer compared to the inflow side. It has surprisingly been found that in such a further embodiment the outflowing water jet can be pulled apart in width such that this water jet retains its width over a comparatively large jet length without becoming a substantially round jet to contract.

It is particularly advantageous if the inflow-side (s) inlet opening (s) of the passage channel is closed at at least one end region in the channel longitudinal direction. If the passage channel is closed at at least one end region m channel longitudinal direction only at its inflow-side inlet opening, turbulences can form underneath the closed partial region of the inlet opening, which generate a lateral negative pressure region in the passage channel, which additionally favors the spreading and widening of the outflowing water jet.

In this case, an embodiment according to the invention that can be produced in a particularly simple manner provides that the inlet grid is designed to be closed at least at one end region in the channel longitudinal direction.

The ease of manufacture of the Strahlfor- mers invention is favored when the inlet grid m or on the jet former is releasably attachable. If the inlet grid is detachably fastened in or on the jet former, a modular design is also made possible so that a jet former can be combined, if necessary, with differently configured inlet grilles.

Further features of the invention will become apparent from the following description of embodiments according to the invention m connection with the claims and the drawings. The individual features can be implemented individually or in combination in an embodiment according to the invention.

It shows: Fxg. 1 m is a longitudinal section of a jet former, which is mounted in the water outlet of a sanitary outlet fitting shown only m its outlet side end ^¬ area and should form a wide flat jet,

2 shows the beam former from FIG. 1 m in a perspective illustration,

3 is a similar to m Figure 1 and 2 trained steel former, but which is a transversely oriented to the flow direction and serving as a flow straightener inlet grid upstream

4 shows the beam former from FIG. 3 in a perspective view,

FIG. 5 shows a jet former mounted in an outlet fitting, to which an annular circumferential wall is integrally formed, which at the edge is at least partially sealed to the inner circumferential wall of the edge

Outlet fitting rests and their longitudinal sides are designed on both sides in each case as a feed grid,

6 shows the beam former from FIG. 5 m in perspective view,

7 shows a jet former of comparable design in FIG. 3 in a longitudinal section which is mounted in the water outlet of an outlet fitting designed to be free from deflection at its outlet end region;

FIG. 8 shows the beam former from FIG. 7 in a longitudinal section. side view,

FIG. 9 shows the jet former of FIGS. 7 and 8 arranged in the deflection zone leading to the water outlet, the flow directions of the water flow being indicated by arrows,

FIG. 10 shows a beam shaper which is configured similarly to the beam shaper in FIGS. 1 to 4 and 7 to 9, wherein the beam shaper shown here has a beam shaper

Passageway has longer in the channel longitudinal direction on its downstream side compared to the upstream side,

FIG. 11 shows the jet former from FIG. 10 in a plan view of its inflow side, wherein an inflow-side inflow grid can be clearly seen,

12 shows the beam former of FIGS. 10 and 11 in a side view,

13 shows the beam former of FIGS. 10 to 12 in a cross section, and

14 shows the beam former from FIGS. 10 to 13 in a longitudinal section.

In the figures 1 to 14 different versions 1, 2, 3 and 4 of a beam former are shown, which should form a wide and stable over a long distance flat jet. It is clear from FIGS. 1, 3, 5, 7 and 9 that the jet former 1, 2, 3 is located in the water outlet 22 of a sanitary outlet shown here only in its outlet end region. running fitting 5 is arranged. The jet former 1, 2, 3 or 4 has a flow channel 6 with a non-circular clear channel cross-section, whose channel longitudinal sides 7, 8 are made longer to form a non-circular and wide flat jet compared to the channel narrow sides 9, 10 are.

In this case, on one of the two channel longitudinal sides 7, 8-m in FIGS. 1, 3, 5, 9, 13 and 14 on the inlet-side channel longitudinal side 7, a deflection bevel 11 configured as a cross-sectional constriction is provided, which in its deflection direction is aligned on a provided on the opposite longitudinal side 8 and formed as a baffle 12 wall portion of the flow channel 6 bounding inner circumferential wall.

The beam former 1, 2, 3 and 4 according to the invention has a passage channel 6 which has on one of its two channel longitudinal sides a deflection bevel 11 configured as a cross-sectional constriction, which in its deflection direction is provided on one, on the opposite longitudinal side 8 and as a baffle surface 12 trained wall portion of the passageway 6 bounding inner peripheral wall is aligned. Since the deflecting bevel 11 is designed as a cross-sectional constriction, the m protrudes a portion of the passage channel 6, a subset of the incoming water flow is deflected in the direction of serving as a baffle 12 opposite wall portion. Due to the design of this baffle 12, such as its inclination, curvature and spreading and their oriented length in the outflow, the water jet incident on it and along it can be significantly influenced m its appearance when leaving the sanitary outlet fitting. It is essential that not the completely tapered water flow over the deflection bevel 11 to serving as a baffle 12 wall tion portion is deflected, but only a subset of this flow of water, but then also affects the not guided over the deflection bevel 11 residual amount of water flow. The interaction of deflection bevel 11 on the one hand and baffle surface 12 on the other hand and the specific alignment and coordination, which may also vary depending on the flow conditions and the design of the fitting body or fitting outlet are decisive factors for influencing the water jet leaving the outlet fitting 5 who is able to fulfill the requirements demanded in the task.

In FIGS. 1, 3, 5, 7 to 9, 13 and 14, it becomes clear that the deflecting bevel 11 projecting in a span shape over the channel longitudinal side 7 has a rounded, longitudinal direction towards its free longitudinal edge 13 protruding into the passage channel 6 Outer contour has.

As is clear from FIGS. 3 to 14, the jet formers 2, 3 can be preceded by at least one inlet grid 14, 15 or 23 in the direction of flow, which has a uniform, calming and stabilizing effect on the outflowing water jet formed by the jet former 2, 3 Has.

In the beamformers 2, 4 shown in FIGS. 3, 4, 7 to 9, 13 and 14, the inlet grille 14, 23 is designed as a separate component arranged in a plane oriented approximately transversely to the throughflow direction of the passage channel 6 and located on the inflow-side end opening the beam former 2 is releasably held by means of a latching connection.

In the figures 5 and 6, a contrast configured differently embodiment 3 is shown, in which the flow-through. 6 an annular peripheral wall 16 is connected upstream in the flow direction, the two wall longitudinal sides are each configured as a feed grille 15. The inflow grid 15, which also acts to calm the flow and is arranged almost parallel to the channel longitudinal sides of the jet former 3, favors the constancy of the water flow flowing away from the impact surface 12 and is likewise distinguished by a flow-distributing, rectifying and flow-calming effect.

From a comparison of Figures 3, 4, 7 to 9, 13 and 14 on the one hand and Figures 5 and 6 on the other hand, it is clear that the inlet grille 14, 15, 23 formed on the beam former 2, 3 and 4, or releasably secured thereto can; However, an embodiment not shown here can also consist in that such inlet gratings, which serve as a flow rectifier, can be mounted separately m flow direction before the jet former in the fitting body of the outlet fitting. The feed grids or similar flow rectifiers 14, 15, 23 may, for example, have a honeycomb-shaped or, as here, a grid-shaped water-guiding structure.

Figures 1 to 6 and 9 show the frequent application, in which the beam former 1, 2 and 3 is arranged in the deflection zone of a preferably approximately at right angles oriented water deflection. In the area of this water deflection, the water flow guided through the fitting body of the outlet fitting 5 is deflected and guided to the water outlet 4, which is arranged approximately at right angles, for example. In FIGS. 7 and 8, a variant deviating in design is shown, in which the incoming water flow in the region of the jet former 2 can be guided virtually without deflection and in which the outlet-side end region of the outlet fitting 5 is a deflection-free flow guidance bounded. In FIGS. 7 and 8, the water flow flowing in through the outlet fitting 5 runs almost parallel to the water jet emerging from the jet former 2.

In FIGS. 7 and 8, a jet former 2 comparable to FIGS. 3 and 4 is shown.

In order to obtain a consistently optically equal rectangular flat jet irrespective of the water pressure of the public water network, it can be particularly advantageous if a flow rate regulator is installed on the inflow side, preferably behind the throttle valve of the valve, which is adapted to the respective liter output in the specific application is tuned and limits this liter performance to a certain maximum value per unit time. By varying the liter capacity, the jet pattern of the jet former can also be varied in terms of its width, the useful parallel length, as well as the speed and impact velocity in the sink or on items held in the water jet. It is particularly advantageous if the position of such a pressure-independent flow rate regulator on the inlet side is as far as possible spaced from the beam former in order to equalize the water jet before entering the jet former and its outlet structure as optimally as possible.

In FIGS. 1 to 14, the jet formers 1, 2, 3 and 4 are held in a frictional and preferably detachable manner in the water outlet 22 of the outlet fitting 5. For this purpose, a sealing ring 17 is provided in a provided on the outer circumference of the beam former 1, 2, 3 and 4, a retaining groove 16 which holds the jet former 1, 2, 3 and 4 preferably in a press fit in the water outlet 4. For releasing the beam former 1, 2, 3 or 4, for example from rhyme For reasons of reasons or to rinse the outlet fitting after initial installation - is on the side facing away from the visible side 7 m the above the water outlet 4 protruding wall circumference saucer on the rear side a recess 18 attached. In this recess 18, the tip of a screwdriver can be introduced, which can be used by supporting on the outlet fitting 5 for levering out of the beam former 1, 2, 3 and 4 respectively.

The embodiments 1, 2, 3 and 4 of a jet former shown here show that the edges surrounding the water outlet of the jet former 1, 2, 3 and 4 can be made sharp-edged, so that these edges or edges 19 always act as dripping edges and the water flowing out through its adhesion to the beam former 1, 2, 3 and 4 undesirably along this pulls and possibly via capillary action to the bottom of the outlet fitting 5, to run along the outlet fitting 5 along, which in the course of time to unsightly Can lead to contamination.

In FIG. 9, it can be seen that the partial area of the jet former circumferential wall projecting at the outlet fitting 5 protrudes beyond the water outlet 4 of the outlet fitting 5, so that the water always drips off at the lower edge of the jet former and not on the outlet fitting 5 on the outside can walk along.

From a comparison of Figures 1 to 14 it is clear that the beam former 1, 2, 3 and 4 shown here can be produced both as a one-piece and as a multi-part plastic injection molded part.

The jet regulator 4 shown in FIGS. 10 to 14 has also has a passage channel 6, which has on one of its two longitudinal sides a channel designed as a cross-sectional constriction 11, m is aligned with its deflecting direction to a provided on the opposite longitudinal side 8 and formed as a baffle 12 wall portion of the passage channel 6 surrounding circumferential wall , This deflecting bevel 11 projecting here in a span shape over the channel longitudinal side 7 has a rounded outer contour with its throughflow direction to its free, longitudinal passage 13 projecting the passage channel 6 hm. It can be seen in FIGS. 10 to 14 that the passage cross-section of the throughflow channel 6 m in the channel longitudinal direction on the outflow side is longer in comparison to the inflow side. In order to design the inflow-side inlet opening of the flow-through channel 6 at the end regions in the channel longitudinal direction, the inlet grate 23 has a multicellular open lattice structure only in its center region, whereas the inlet lattice 23 is closed at its two end regions m channel longitudinal direction. Since the flow-through channel is configured to be closed at its two end regions in the channel longitudinal direction at the inflow-side inlet opening, turbulences can form underneath the closed partial region of the inlet opening which produce a lateral negative pressure region 21 in the flow-through channel 6, which negative-pressure region 21 is a spreading and widening of the outflowing water jet favored. In the jet regulator 4 shown in FIGS. 10 to 14, the outflowing water jet is pulled apart even over the longitudinal extent of the downstream opening cross section of the jet former 4 so that this water jet retains its width over a comparatively large jet length without becoming one largely round beam to contract again. In this way, a broad, yet flat jet pattern can be generated, wherein the effluent from the beam shaper 4 Beam compared to the beam formers 1, 2 and 3, in which the flow channel 6 has a substantially constant passage cross-section, also flows over a larger jet length substantially wider.

Claims

claims

1. beam former (1, 2, 3, 4) which is arranged in the water outlet (22) of a sanitary outlet fitting (5) and a passage channel (6) having a non-circular clear channel cross-section, the channel longitudinal sides (7, 8) in Compared to the channel narrow sides (9, 10) are designed to be longer, and the (6) at one (7) of its two channel longitudinal sides (7, 8) designed as a cross-sectional constriction deflection bevel (11) which in their Direction of deflection on one on the opposite longitudinal side (8) provided and designed as a baffle surface (12) wall portion of the passageway (6) bounding inner peripheral wall is aligned.

2. beam former according to claim 1, characterized in that the deflection bevel (11) has a in the flow direction to its free, m the passage channel (6) projecting longitudinal edge (13) hm rounded outer contour.

3. beam former according to claim 1 or 2, characterized in that the deflection bevel (11) projecting in a chip over the channel longitudinal side (7).

4. beam former according to one of claims 1 to 3, characterized in that the passage channel (6) at least one inlet grid (14, 15, 23) or the like flow rectifier rectifier m flow direction is connected upstream.

5. beam former according to one of claims 1 to 4, characterized in that the grid openings (20) at least one inlet grid (14, 15, 23) by in Durchström- direction elongated flow guide walls are bounded.

6. beam former according to one of claims 1 to 5, characterized in that at least one inlet grid (15) is arranged approximately in the plane defined by one of the channel longitudinal sides (7, 8).

7. beam former according to one of claims 1 to 6, characterized in that the throughflow channel (6) is preceded by an annular peripheral wall (16) in the flow direction, the two wall longitudinal sides are each configured as inlet grid (15).

8. beam former according to one of claims 1 to 7, characterized in that at least one inlet grid (14, 23) is arranged in a m approximately transversely to the flow direction of the passage channel (6) oriented plane.

9. beam former according to one of claims 1 to 8, characterized in that the beam former (1, 2, 3, 4) m of the deflection zone of a preferably approximately at right angles oriented water deflection is arranged.

10. beam former according to one of claims 1 to 9, characterized in that the jet former (1, 2, 3, 4) is held by means of a latching connection preferably releasably in the water outlet of the outlet fitting.

11. Beam former according to one of claims 1 to 10, characterized in that the jet former (1, 2, 3, 4) frictionally and preferably releasably in the water outlet (22) of the outlet fitting (5) is held.

12. beam former according to exnem of claims 1 to 11, characterized in that between the beam shaper (1, 2, 3, A) and the water outlet (22) at least one circumferential sealing ring (17) is provided which the beam former (1, 2, 3 , 4) preferably in the press fit in the water outlet (22) holds.

13. Beam former according to one of claims 1 to 12, characterized in that the beam former (1, 2, 3, 4) is made as a one-part or multi-part plastic injection molded part.

14. Beam former according to one of claims 1 to 13, characterized in that m the water jet leading to the beamline, preferably m the fitting body of the outlet fitting, in particular at a distance from the beam former this flow rate controller or a flow restrictor m flow direction is connected upstream.

15. Beam former according to one of claims 1 to 14, characterized in that the passage cross-section of the flow channel (6) is longer in the channel longitudinal direction on the downstream side compared to the inflow side.

16. Beam former according to one of claims 1 to 15, characterized in that the inflow-side (s) inlet opening (s) of the inflow channel (6) is closed at at least one end region in the channel longitudinal direction.

17. Beam former according to one of claims 1 to 16, characterized in that the inlet grid (23) is designed to be closed at least one end region m channel longitudinal direction.

18. Beam former according to one of claims 1 to 17, characterized in that the inlet grid (14, 15, 23) in or on the beam former (1, 2, 3, 4) is releasably fastened.