EP3445921A1

EP3445921A1 - Sanitary fixture

Info

Publication number: EP3445921A1
Application number: EP18718696.0A
Authority: EP
Inventors: Alexander Stein
Original assignee: Neoperl GmbH
Current assignee: Neoperl GmbH
Priority date: 2017-03-13
Filing date: 2018-03-13
Publication date: 2019-02-27
Anticipated expiration: 2038-03-13
Also published as: EP3445921B1; EP3620585A3; CN111691506A; WO2018167042A1; CN207567868U; DE202017101442U1; ES2931831T3; US11732451B2; PL3779077T3; CN109642422A; CN109642422B; EP3779077A1; ES2804305T3; EP3620585B1; CN108571038B; EP3620585A2; CN208329066U; PL3445921T3; CN111691506B; EP3779077B1

Abstract

The invention relates to a sanitary fixture (1) comprising a diffuser (3) arranged behind a functional unit (2) and an annular chamber (24) arranged behind the diffuser (3), an area of an opening cross-section of an outlet opening (9) of the diffuser (3) is at most 10% greater than an area of an opening cross-section of an inlet opening (5, 5') of the diffuser (3) and/or the annular chamber (24) with a contour, which in a longitudinal section of the fixture (1), follows an ellipse (26, 28) having the smallest possible eccentricity (see figure 3).

Description

Sanitary installation !!

The invention relates to a sanitary fitting, with a functional unit, and a downstream of the functional unit formed diffuser, wherein the

Functional unit forms at least one inlet opening to a diffuser space, wherein the diffuser has a baffle plate delimiting the diffuser space in a direction of flow predetermined by the at least one inlet opening, which deflects water flowing in through the at least one inlet opening in a lateral direction, wherein the diffuser space between the baffle plate and the Functional unit is formed and has an outlet opening, through which exits through the at least one inlet opening entering water completely from the diffuser space. The invention has for its object to improve the spray pattern of a leaking water jet.

To achieve the above object, the features of claim 1 are provided according to the invention. In particular, it is thus proposed to solve the above object according to the invention in a sanitary fitting of the type described above, that an opening cross-section of

Outlet opening has a surface area which is 0.9 times to 2 times, preferably 1 to 7 times, a surface area of an opening cross-section of the at least one

Entry opening amounts. Thus, cramped space conditions in the diffuser space are created by which turbulence in a water flow can be prevented. Preferably, the surface areas are chosen approximately or even exactly the same size. If two or more inlet openings arranged separately from each other are present, the surface area of the at least one inlet opening can be a total surface area of the two or more inlet openings for the described size ratios.

In one embodiment of the invention of possibly independent inventive quality can be provided in a sanitary internals of the type described above or in the embodiment described above, that the baffle plate on a side facing the diffuser space substantially (or even exactly) is flat. Thus, unwanted turbulence, which could be generated by structures on the baffle plate, avoidable.

Alternatively or additionally, it may be provided that the baffle plate is essentially (or even completely) free of obstacles on a side facing the diffuser chamber. The invention has recognized that, for good subsequent ventilation, beam splitting in the area of the baffle plate can be dispensed with. Thus, the invention can easily achieve a substantially or completely trouble-free deflection of the flowing water after exiting the inlet opening.

In one embodiment of the invention of possibly independent inventive quality can be provided in a sanitary internals of the type described above or in one of the embodiments described above, that the diffuser space at least two along a main flow direction spaced from each other

Having inlet openings and that the diffuser space along the main flow direction has a profile which between the spaced-apart inlet openings and / or at the downstream of the at least two inlet openings defines a profile widening. Thus, increases in a flow of water extending through along the

Main flow direction result through further inlet openings, easily absorbed by a corresponding increase in a cross-sectional area of the diffuser space. Thus, undesirable turbulence at an inlet opening can be avoided. In this case, the main flow direction can be described as preferably the shortest connecting line between an inlet opening, preferably a most upstream inlet opening, and the already mentioned outlet opening of the diffuser room. Due to the rectifying effect of the correspondingly dimensioned diffuser space, this may coincide with the mean flow velocity direction in an angular segment containing the inlet opening.

Preferably, the profile widening is designed as a profile ramp. In this way, a step-free profile can be provided, so that the water in the diffuser space can flow without swirling or turbulence.

It can be provided here that the profile widening defines an enlargement of a cross-sectional area of the diffuser space transversely to the main flow direction, which is matched to a cross-sectional area of the downstream inlet opening. Thus, it can be achieved in a simple manner that the water entering via this downstream inlet opening can be combined with the water from the upstream inlet opening with as little turbulence as possible. It follows from the continuity equation that the increase in cross-sectional area avoids different velocity profiles and / or sudden increases in velocity. Thus, eddy formation can be reduced. In one embodiment of the invention can be provided that the baffle plate is bounded on all sides, ie circumferentially, by a cross-sectional widening for the flowing water. Thus, an obstacle-free limitation of the baffle plate can be achieved. It is particularly achievable that the flowing water can thus flow undisturbed by the baffle plate.

Preferably, the cross-sectional widening is formed by a (sloping) step. Thus, a desired after the baffle swirl through which air is added, easily accessible.

In one embodiment of the invention can be provided that the at least one inlet opening of the baffle plate is arranged opposite one another. Thus, a direct flow against the baffle plate to a deflection of the flow direction can be reached to the outside. Preferably, the at least one inlet opening is oriented along a longitudinal direction of the sanitary fixture.

In one embodiment of the invention can be provided that the at least one inlet opening is arranged centrally of the baffle plate. Thus, rotationally symmetric flow conditions can be achieved. Swirling can thus be avoided or at least reduced.

In one embodiment of the invention can be provided that a support plate of the functional unit is supported on the baffle plate. Thus, forces that are introduced to the functional unit by the flowing water can be derived. Preferably, the support is formed centrally on the baffle plate. This allows a symmetrical, in particular rotationally symmetrical, design of the diffuser space. In one embodiment of the invention can be provided that on the baffle plate centered to the inlet opening a flow divider, which serve as a filling element and thereby can prevent unwanted flow effects, is formed. Thus, a reference point can be formed, to which a flow aligns in the diffuser space. Circular flows or turbulence at a first impact point of the water on the baffle plate are thus avoidable. The incident beam naturally already has a cross-section of a (possibly deformed) circular disk, in which water in each circular disk segment can easily be deflected in a certain outward direction. For example, the flow divider may be formed by the already mentioned support. Thus, the structural design is easily preserved.

In one embodiment of the invention can be provided that the functional unit has at least one flow regulator. The advantage here is that a required or desired flow rate can be provided pressure-independent within a workspace. The flow conditions in the diffuser space are thus easily controlled.

Alternatively or additionally, the functional unit may have at least one throttle. Thus, flow rates in the diffuser space can be reduced compared to unimpeded flow.

In one embodiment of the invention can be provided that the functional unit has two in the flow direction in parallel flow regulator. Thus, larger flow rates can be provided independently of pressure. Preferably, the flow regulators are arranged concentrically with each other. Thus, space is saving, without that control elements of Flow regulator must be very small dimensions. In this case, the two flow regulators can each form an inlet opening in the diffuser space. In this case, for example, when the flow regulators are arranged concentrically with respect to one another, the inlet openings can be arranged spaced apart from one another along the main flow direction already mentioned and thus form an upstream and a downstream inlet opening. In one embodiment of the invention can be provided that the diffuser is followed by a jet ventilation device. Thus, a ventilated jet is available. The uniform or low turbulence flow in the diffuser chamber according to the invention has proven to be particularly favorable for subsequent air enrichment.

In one embodiment of the invention it can be provided that the diffuser space has a substantially (or even exactly) constant height. Thus, in the vertical direction (with respect to the baffle plate and / or an extension of the diffuser space) turbulences can be avoided or at least reduced. The height of the diffuser space can be characterized, for example, as a dimension transverse to the flow direction in the diffuser space and / or transversely to an extension direction of the baffle plate.

In one embodiment of the invention can be provided that the diffuser space forms a flow straightener. Thus, it is possible to achieve uniform, in each case, for example, radially aligned partial flows at the outlet opening, which are favorable for subsequent beam shaping. Preferably, the diffuser space is free of obstacles for this purpose or at least designed obstacle-poor, in order to avoid unwanted turbulences as possible. In this case, the invention makes use of the fact that the flow rectification effect is produced in that the boundary walls of the channel-forming diffuser space are aligned and dimensioned in the manner described.

In one embodiment of the invention can be provided that a height of the diffuser space is less than half the height of a downstream collection chamber. A comparatively narrow diffuser space has proved to be favorable for the generation of a rectified flow. Here, the term "rectified" may also include flow images in which the partial flows are not aligned parallel, but with respect to a center radially.

The invention has the general advantage that a very uniform flow pattern in the diffuser space can be achieved by the cramped configuration.

In general, it can be said that the described features, individually or in combination with one another, can serve to produce as homogeneous a velocity profile as possible. Large differences in velocities of adjacent partial flows tend to create turbulence. The invention provides measures, the occurrence of large

To avoid speed differences.

To solve the above problem of possibly independent quality, the invention proposes the features of the third independent claim. In particular, the invention thus proposes a sanitary internals, preferably according to the preamble of claim 1 or claim 1, wherein an annular chamber in a flow direction a diffuser downstream, which opens into at least one outlet nozzle, wherein behind the at least one outlet nozzle at least one ventilation opening is formed, via which outside air can be supplied to produce a ventilated water jet, before, that the annular chamber above the at least one outlet nozzle in a longitudinal section has a contour into which an ellipse can be fitted, which has an aspect ratio greater than 0.433 of a semi-minor axis to a large semiaxis. The advantage here is that the annular chamber provides a space for inflowing water, which allows a roughly circular in a longitudinal flow pattern and at the same time takes into account the limited space of a sanitary fixture. Such a flow pattern is particularly favorable for an effective air admixing.

The fitting of an ellipse can in this case be characterized, for example, in such a way that the ellipse, which is preferably the largest in area, touches at four points on a contour or boundary line of a cross section transversely to the circulating chamber of the annular chamber, in particular as a quadrilateral.

In general, it can be said that the closer the ratio of the half-axes approaches 1, the more favorable the flow pattern is for effective air admixture. However, further conditions are to be considered here, for example the requirement for the smallest possible outside dimension of the insert transversely to the longitudinal or flow direction. These prevent in many cases that the aspect ratio of 1 is actually achievable.

Preferably, the number ratio is more than or equal to 0.45, 0.5 or even 0.6. Thus, even almost or exactly circular flow patterns accessible.

To solve the stated object of possibly independent inventive quality, the invention proposes, as an alternative or in addition to the solution described above, the features of the fourth independent claim. In particular, the invention thus proposes a sanitary internals, preferably according to the preamble of claim 1 or claim 1, wherein an annular chamber is downstream of a diffuser in a flow direction, which opens into at least one outlet nozzle, wherein downstream of the at least one outlet nozzle at least one

Ventilation opening is formed, via which outside air to a generation of a ventilated water jet can be supplied, wherein between the diffuser and the annular chamber, a guide surface, the inflowing water into the annular chamber is formed, before, that the annular chamber in a above an extension of the guide surface in the annular chamber located part annular chamber in a longitudinal section has a contour into which an ellipse is fitted, which has an aspect ratio of greater than 0.52 of a small semi-axis to a large semi-axis. The invention has recognized that the water from the guide surface flows into the annular chamber, so that the described geometric cross-sectional shape is favorable to force this water in an approximately circular path.

Preferably, the aspect ratio is more than 0.55 or 0.55. Most preferably, the aspect ratio is greater than 0.6 or equal to 0.6. Most preferably, the aspect ratio is greater than 0.69 or equal to 0.69. This allows an even better approach to the circular path and thus a further improved ventilation. In one embodiment of the invention can be provided that the annular chamber has a quadrangular, in particular (substantially or even exactly) parallelogram-shaped, longitudinal section. A parallelogram cross-sectional shape is particularly easy to implement and can provide sufficient space for a good turbulence of the water with incoming air. The longitudinal section can thus be selected transversely to a (for example circular) extension dimension of the annular chamber.

In general, an annular chamber enlarged according to the invention can be achieved, for example, by forming a stepped constriction in front of the outlet nozzle.

In one embodiment of the invention can be provided that an upper cover is placed on protruding into the annular chamber projections. Thus, the annular chamber can be radially formed with respect to the longitudinal direction of the insert with maximum extension, without being limited by a lying over it and carried by her cover. Preferably, the functional unit is formed on the cover. Thus, the diffuser carries the functional unit. The projections may in this case be plate-shaped. This can improve turbulence by laterally deflecting a water flow running in the direction of extent or along the annular chamber.

In one embodiment of the invention can be provided that downstream of the outlet nozzle a plurality of ventilation openings are arranged distributed over a circumference of the mounting part. It is thus an all-round air supply available. The invention has recognized that the addition of air takes place already in the annular chamber in front of the outlet nozzle, wherein the air through the outlet nozzle - contrary to the flow direction of the water - enters the ring chamber.

Preferably, the ventilation openings are formed at regular intervals. Thus, the annular chamber is uniformly supplied with air.

In one embodiment of the invention can be provided that the outlet nozzle is formed by an annular gap. Thus, further subdivisions of the aerated jet can be avoided.

In one embodiment of the invention can be provided that the annular chamber is arranged offset in a longitudinal section with respect to an upstream collection chamber down. This allows an inflow of the water approximately in a vertical central region of the annular chamber. This is favorable for a good air admixture.

In one embodiment of the invention it can be provided that the annular chamber extends above and below one or the guide surface. Thus, it can be achieved that the water enters at a distance from a boundary of the annular chamber. This is favorable for a good turbulence for adding air. In one embodiment of the invention can be provided that between the collection chamber and the annular chamber a plurality of spaced-apart passage openings are formed. Thus, it can be achieved that spatially separate partial flows enter into the annular chamber. This can be used in a lateral deflection along the annular chamber to generate successive partial flows. Thus, a further improved turbulence for jet ventilation can be achieved. The passages described are best with the guide surface also described and / or with the staggered arrangement of annular chamber and collecting chamber also described combined to achieve an approximately central or only slightly eccentric entry of partial streams of water into the annular chamber. As a result, a particularly effective addition of air can be achieved.

The invention will now be explained in more detail with reference to embodiments, but is not limited to these embodiments. Further exemplary embodiments result from a combination of the features of individual or several protection claims with one another and / or with one or more features of the exemplary embodiments.

It shows:

1 is a sanitary fittings according to the prior art,

Fig. 2 shows an inventive sanitary fittings in one

Oblique view from above,

Fig. 3, the inventive fittings according to FIG. 2 in a

Longitudinal view,

Fig. 4 is an oblique view of the diffuser insert with

Baffle plate and collecting chamber of the insert according to

Fig. 1,

Fig. 5 is a top view of the diffuser insert according to

4,

Fig. 6 is a longitudinal section through the diffuser insert according to

5 along the sectional plane A-A,

Fig. 7 is a longitudinal section through another sanitary fixtures according to the invention,

Fig. 8 is an oblique view of the diffuser insert of

Built-in part according to FIG. 7,

Fig. 9 is a top view of the diffuser insert according to

8,

10 shows a longitudinal section along B-B through the diffuser insert according to FIG. 9, FIG.

Fig. 11 shows a further inventive sanitary installations in exploded view, Fig. 12, the internals of FIG. 11 in a

Longitudinal view,

Fig. 13 shows a detail of Fig. 3 with fitted large

Ellipse,

Fig. 14 shows the detail of FIG. 13 with fitted smaller

Ellipse,

15 is a view similar to FIG. 13 to the internals of FIG. 12th

FIG. 16 is an illustration analogous to FIG. 14 for the built-in components according to FIG. 12, FIG. 17 is a view analogous to FIG. 13 of an annular chamber of a further built-in component according to the invention,

Fig. 18 is a view analogous to FIG. 14 of the annular chamber

Fig. 17, wherein the left figure shows the location of Fig. 19 shows a two-dimensional sectional view of another built-in component according to the invention,

Fig. 20 is a three-dimensional sectional view of the

Built-in part of FIG. 19 and

Fig. 21 is a further three-dimensional sectional view of the

Fitting according to FIG. 19.

FIG. 1 shows a sanitary installation according to the state of the art, denoted as a whole by 1. The internals 1 has a functional unit 2 and a diffuser 3, which is arranged in a flow direction behind the functional unit 2. The diffuser 3 is in this case formed on a diffuser insert 4.

Here, the functional unit 2 opens via a circular inlet opening 5 in the diffuser chamber 6 of the diffuser third

The diffuser space 6 is bounded by a baffle plate 7, which can be flowed through by the inlet opening 5.

This baffle plate 7 deflects the incoming water in lateral, radial direction. The diffuser space 6 is arranged between the baffle plate 7 and the functional unit 2 and is bounded in the radial direction, which is defined with respect to a central axis 8, by an outlet opening 9. This outlet opening 9 runs on a cylinder jacket around the diffuser chamber 6 around. In an outflow direction predetermined by the inlet opening 5, the baffle plate 7 delimits the diffuser space 6.

On the baffle plate 7 a plurality of flow obstacles 10 are formed, each with a triangular horizontal section, which divide the deflected at the baffle plate 7 water into several individual streams.

The flow obstacles 10 are in this case arranged at a distance from the functional unit 2, so that water can also flow over the flow obstacles 10. Figures 2 to 6 show different views of a sanitary fixture according to the invention. These figures will be described below together.

Structurally and / or functionally identical or identical components and functional units to the preceding built-ins according to FIG. 1 are designated by the same reference numerals and are not described separately again. The statements on FIG. 1 therefore apply correspondingly to FIGS. 2 to 6.

The embodiment according to the invention differs from the prior art according to FIG. 1 in that the opening cross section of the outlet opening 9 has a surface area which exceeds an area of an opening cross section of the inlet opening 5 by more than 10%. In the present embodiment, the areas are even selected to be the same size.

In contrast, the variant of Figure 1, in which on the Impact plate 7 flow obstacles 10 were arranged, the baffle plate 7 is flat and obstacle-free formed on the side facing the diffuser chamber 6. It follows that the outlet opening 9 is formed on the outer edge 11 of the baffle plate 7 circumferentially open.

Radially outside the rim 11 is a step 12 which slopes downwards. This step 12 thus forms a cross-sectional widening with respect to the opening cross-section of the outlet opening 9.

The thus formed cross-sectional widening is formed circumferentially around the entire baffle plate 7.

By the step 12, the outer edge 11 forms a circumferential tear-off edge over which the water flow flows downwards.

This is particularly favorable for the initiation of the turbulence, which will be described below.

In FIG. 3 it can be seen that the baffle plate 7 is arranged opposite the inlet opening 5 in such a way that the inlet opening 5 lies centrally or centrally, ie concentrically to the baffle plate 7.

At the baffle plate 7, a central support 13 is formed, which supports the functional unit 2. In further embodiments, the central support 13 may also be integrally formed on the functional unit 2 and seated on the baffle plate 7 or engage in a recess formed there.

This support 13 forms a flow divider 14, which prevents water flow from the inlet opening 5 on the central axis 8 to and over the central axis 8 can flow away. Rather, the flow divider 14 causes the inflowing water from the inlet openings 5 is deflected radially, substantially rectilinearly to the outside. The flow divider 14 also fills a central area of the diffuser space 6 which is not needed and in which there is a danger of vortex formation. About the support 13 also designed as a support plate 37 housing the flow regulator 15, 16 is supported centrally on the baffle plate 7.

In the embodiment shown in Figure 2 to 6, the functional unit 2 has two flow controllers 15, 16. Here, the flow regulator 15, 16 each provided in a conventional manner with an elastically deformable control body as a control element 22, 23, which pressure-dependent opening cross section of a behind the Setting rule body trained tax gap. The control elements 22, 23 are each arranged in an annular gap 20, 21. For a space-saving arrangement, the flow regulators 15, 16 concentrically arranged one inside the other and nested. The rule columns mentioned together form the inlet opening. 5

In other embodiments, other flow controllers or combinations of flow controllers and throttles or only throttles are arranged. The diffuser 3 in Figure 2 to 6 is downstream of a jet ventilation device 17 in the flow direction. The

Jet ventilation device 17 has a collection chamber 18 connected downstream of the diffuser chamber 6, which is opened by the already mentioned step 12. This collection chamber 18 is annularly formed circumferentially and opens via a plurality of radial passage openings 19 in an annular chamber 24. The annular chamber 24 is in this case annular circumferentially formed and may be continuously open or formed partially interrupted by intermediate portions. In the present embodiment, the annular chamber 24 is formed open throughout.

The annular chamber 24 is connected downstream of an outlet nozzle 25, which is formed as an annular gap and which follows the course of the annular chamber 24.

Below the outlet nozzle 25 outwardly leading ventilation openings 32 are formed, which extend equally distributed along the circumference.

Through this vent 32 air enters from the outside over the

Outlet nozzle 25 - ie opposite to the flow direction of the

Water - in the annular chamber 24, in which it is mixed with the bubbled water over.

The diffuser chamber 6 has beyond the flow divider 14 a constant height, ie vertical dimension, and thus forms an obstacle-poor, preferably obstacle-free, flow rectifier.

In this case, the height of the diffuser space 6, that is to say its extent along the central axis 8 or in the longitudinal direction, is less than half the height of the downstream collecting chamber 18, that is to say the extent thereof along the central axis 8.

FIG. 13 shows an enlarged view from FIG. 2. In the cross-section of the annular chamber 24, an ellipse 26 is fitted or inscribed whose aspect ratio of the length of the semi-minor axis to the semi-major axis is 0.53 and thus more than 0.433. In further embodiments, ellipses are adaptable, the aspect ratio of small semi-axis to large half-axis is more than 0.45, 0.5, 0.6 or even 0.69

The fitted ellipse 26 thus fills the annular chamber 24 as much as possible.

In Figure 14 it can be seen that the collection chamber 18 at the bottom has a guide surface 27 which directs the inflowing water into the annular chamber 24. If the guide surface 27 is lengthened into the annular chamber 24, it can be seen that an ellipse 26 can be fitted in the thus formed partial annular chamber 31 above the guide surface 27, whose aspect ratio of the semi-minor axis to the large semiaxis is approximately 0.69 and thus greater than 0.52 and even greater than 0.55 and greater than 0.6.

This ellipse 28 describes to a good approximation the course of the water flow after entering the annular chamber 24 of the guide surface 27th

This nearly circular web guide leads to aeration and thus air enrichment before the water exits to the outlet nozzle 25. It can be seen in the illustrations according to FIG. 3, FIG. 13 and FIG. 14 that the annular chamber 24 has a longitudinal section transversely to its extension direction, which has a parallelogram-shaped form. To form a sufficiently narrow outlet nozzle 25 is thus at the downstream end of the Ring chamber 24 a step-shaped constriction 30 is formed.

The outlet nozzle 25 is formed by a circumferential annular gap 20 between the diffuser insert 4 and a housing sleeve 33.

In FIG. 3 it can still be seen that the annular chamber 24 is arranged offset in a longitudinal section with respect to the upstream collecting chamber 18 downwards or towards an outlet 34.

This ensures that the annular chamber 24 extends in this longitudinal section both above and below the guide surface 27.

FIGS. 7 to 10 show different views of another sanitary installation component 1 according to the invention. Structurally and / or functionally identical or identical components and functional units to the preceding embodiments are designated by the same reference numerals and are not described separately again. The remarks on FIGS. 2 to 6 therefore apply correspondingly to FIGS. 7 to 10.

The exemplary embodiment according to FIGS. 7 to 10 differs from the preceding exemplary embodiment at least in that the baffle plate 7 is not formed completely flat, but has at its radially outer end a ski-like elevation 35, through which the outlet opening 9 forms a nozzle. The ski-like elevation 35 is in this case dimensioned so that the baffle plate 7 is still designed substantially flat and obstacle-free.

Figures 11 and 12 show a further inventive Embodiment of a sanitary fixture 1. Again, constructive and / or functional similar or identical components and functional units are denoted by the same reference numerals and not described separately. The comments on the preceding embodiments therefore apply to the figures 11 and 12 respectively.

The exemplary embodiment according to FIGS. 11 and 12 differs from the preceding exemplary embodiments in that the annular chamber 24 has no parallelogram-shaped cross-sectional shape in longitudinal section.

Rather, here at least approximately a trapezoidal shape is realized, in which the upper end of the annular chamber 24 is widened so that the diffuser insert 4 is no longer supported by solid material of the housing sleeve 33. To support the diffuser insert 4 plate-shaped projections 36 are formed here, which protrude into the annular chamber 24. These projections 36 serve on the one hand for holding the diffuser insert 4 and on the other hand for deflecting water flows which flow along the direction of extension of the circular annular chamber 24, radially inwardly. This further improves the mixing of the water flows.

Preferably, these projections 36 are formed corresponding to the position of the passage openings 19.

FIGS. 15 and 16 show the ellipses 26, 28 analogously to FIGS. 13 and 14 for the situation of the insert 1 according to FIGS. 11 and 12.

It can be seen that because of the particular shape of the annular chamber 24, the fitted ellipses 26, 28 obliquely with respect to on the central axis 8, which determines the longitudinal direction of the mounting part 1, are aligned. In the present case, the ellipse 26 has an aspect ratio of 0.55 from a small half-axis to the large half-axis, that is above a ratio of 0.52. The ellipse 28, however, has an aspect ratio of about 0.69 from a semi-minor axis to the semi-major axis.

Figures 17 and 18 show illustrations analogous to Figures 13 and 14. Structurally and / or functionally identical or identical components and functional units are denoted by the same reference numerals and not described separately. The remarks on FIGS. 1 to 16 therefore apply correspondingly to FIGS. 17 and 18. In FIG. 17, the ratio of the small semiaxis (associated diameter 2b) to the large semiaxis (associated diameter 2a) of the ellipse 26 is 0.55. In FIG. 18, the ratio of the small semiaxis (associated diameter 2b) to the large semiaxis (associated diameter 2a) of the ellipse 26 is 0.69.

FIGS. 19 and 20 show different views of a further sanitary installation part 1 according to the invention. These figures will be described jointly below. Structurally and / or functionally to one of the preceding built-in components according to FIGS. 1 to 18, identical or identical components and functional units are designated by the same reference numerals and are not described separately again. The remarks on FIGS. 1 to 18 therefore apply correspondingly to FIGS. 19 and 20.

The built-in part 1 according to FIGS. 19 and 20 differs from the preceding embodiments initially in that the diffuser space 6 does not have a profile 39 with a constant length Height. Rather, along the main flow direction 38 between the upstream inlet opening 5, which is assigned to the flow regulator 15, and the downstream inlet opening 5 which is assigned to the flow regulator 16, a profile widening 40 is formed, through which the cross-sectional area of the diffuser chamber 6 of a cylinder jacket about the axis. 8 towards the outside changes more strongly than proportionally to the radius of the cylinder jacket. Due to this increase in area of the makeup water stream, which flows through the downstream inlet opening 5 ^λ into the water flow from the upstream inlet opening 5 can be received without forming significant swirls. In further embodiments, the profile ramp 41 may additionally or alternatively be formed on the functional unit 2. The pitch of the profile ramp 41 is chosen such that the profile widening 40 defines an enlargement of a surface area of a cross-sectional area of the diffuser space 6 transverse to the main flow direction 38, which is tuned to a surface area of a cross-sectional area of the downstream inlet opening 5 ^λ . It can thus be said that the surface area of a cylinder jacket around the axis 8 in the diffuser space 6 behind the profile widening 40 around the surface area of the downstream inlet opening 5 ^is larger than the corresponding area before the profile widening 40. The invention uses the continuity equation to an approximately constant

To achieve flow velocity.

The exemplary embodiment according to FIGS. 19 and 20 also differs from the preceding exemplary embodiments in that the flow divider 14 as a pin is not formed on the baffle plate 8 but-pointing downward-on the functional unit 2. The functional unit 2 is thus supported on the baffle plate 8 and on the diffuser Insert 4 off.

In the sanitary installation part 1 with a diffuser 3 arranged behind a functional unit 2 and an annular chamber 24 arranged behind the diffuser 3, it is proposed to make a surface area of an opening cross section of an outlet opening 9 of the diffuser 3 at most 10% larger than an area of an opening cross section of an inlet opening 5 , 5 ^{λ of} the diffuser 3 and / or the annular chamber 24 form with a contour which allows in a longitudinal section of the insert 1, the inscription of an ellipse 26, 28 with the smallest possible eccentricity.

/ LIST OF REFERENCE NUMBERS

LIST OF REFERENCE NUMBERS

1 fixtures

functional unit

3 diffuser

4 diffuser insert

5 (upstream) inlet

5 ^λ (downstream) inlet opening

6 diffuser room

7 baffle plate

8 central axis

9 outlet opening

10 flow obstacle

11 Outer edge

12 level

13 support

14 flow dividers

15 flow regulator

16 volume control

17 jet ventilation device

18 collection chambers

19 passage opening

20 annular gap

21 annular gap

22 control element

23 control element

24 ring chamber

25 outlet nozzle

26 ellipse

27 guide surface

28 ellipse

29 flow straightener

30 constriction Divisional annular chamber

Ventilation opening housing sleeve

outlet

survey

head Start

support plate

Main flow direction profile

profile expansion

Claims

claims

Sanitary installations (1), with a functional unit (2), and a downstream of the functional unit (2) formed diffuser (3), wherein the functional unit (2) at least one inlet opening (5, 5 ^λ ) to a diffuser space (6) wherein the diffuser (3) has a diffuser chamber (6) in a through the at least one inlet opening (5, 5 ^λ) predetermined direction of flow limiting baffle plate (7) flowing in through the at least one inlet opening (5, 5 ^λ) water in deflecting a lateral direction, wherein the diffuser space (6) between the baffle plate (7) and the functional unit (2) is formed and an outlet opening (9), through which completely through the at least one inlet opening (5, 5 ^λ ) entering water the diffuser chamber (6) emerges, characterized in that an opening cross-section of the outlet opening (9) has a surface area of 0.9 times to 2 times, preferably from 1 to 7 times, ei nes area of an opening cross section of the at least one inlet opening (5, 5 ^λ ).

Sanitary installations (1) according to the preamble of claim 1 or claim 1, characterized in that the baffle plate (7) formed on a side facing the diffuser chamber (6) substantially flat and / or obstacle-free and / or at its outer edge ( 11) is circumferentially open.

Sanitary installations (1) according to the preamble of claim 1 or according to claim 1 or 2, characterized in that the diffuser space (6) at least two along a Main flow direction (38) spaced apart inlet openings (5, 5 ^λ ) and that the diffuser chamber (6) along the main flow direction (38) has a profile (39) between the spaced apart inlet openings (5, 5 ^λ ) and / or at the downstream of the at least two inlet openings (5, 5 ^λ ), a profile widening (40), in particular as a profile ramp (41), defined, in particular wherein the profile widening (40) an enlargement of a

Cross-sectional area of the diffuser space (6) defined transversely to the main flow direction (38), which is adapted to a cross-sectional area of the downstream inlet opening (5 ^λ ).

Sanitary installations (1) according to one of the preceding claims, characterized in that the at least one inlet opening (5, 5 ^λ ) is formed in several parts and / or divided and / or that the at least one inlet opening (5, 5 ^λ ) a Gesamtzuströmfläche to the diffuser space (6) defined.

Sanitary installations (1) according to one of the preceding claims, characterized in that the baffle plate (7) on all sides by a preferably by a step (12) formed cross-sectional widening for the flowing water is limited.

Sanitary installations (1) according to one of the preceding claims, characterized in that the at least one inlet opening (5, 5 ^λ ) of the baffle plate (7) opposite and / or centrally or centrally of the baffle plate (7) is arranged and / or that a support plate (37) of the functional unit (2) is preferably supported centrally on the baffle plate (7). Sanitary internals (1) according to one of the preceding claims, characterized in that, preferably on the baffle plate (7) and / or on the functional unit (2), centrally to the inlet opening (5, 5 ^λ ) in the diffuser chamber (6) a flow divider ( 14) is formed.

Sanitary installations (1) according to one of the preceding claims, characterized in that the

Functional unit (2) has at least one flow regulator (15, 16) and / or at least one throttle, in particular wherein the functional unit (2) has two parallel in the flow direction, preferably concentrically arranged, flow regulator (15, 16).

Sanitary installations (1) according to one of the preceding claims, characterized in that the diffuser (3) is followed by a jet ventilation device (17).

Sanitary installations (1) according to one of the preceding claims, characterized in that the diffuser space (6), at least outside of or a profile widening (40), has a substantially constant height.

Sanitary installations (1) according to one of the preceding claims, characterized in that the diffuser space (6) forms a preferably obstacle-poor or even obstacle-free flow rectifier (29).

Sanitary installations (1) according to one of the preceding claims, characterized in that a height of the diffuser space (6) is less than half the height of a downstream collecting chamber (18). Sanitary installations (1), in particular according to the preamble of claim 1 or according to one of the preceding claims, wherein an annular chamber (24) in a flow direction downstream of a diffuser (3) which opens into at least one outlet nozzle (25), wherein downstream at least one outlet nozzle (25) at least one ventilation opening (32) is formed, via which outside air can be supplied to produce a ventilated water jet, characterized in that the annular chamber (24) above the at least one outlet nozzle (25) in a longitudinal section has a contour into which an ellipse (26, 28) can be fitted which has an aspect ratio of greater than 0.433, preferably greater than or equal to 0.45, more preferably greater than or equal to 0.5 or even 0.6, of a semi-minor axis has a large semi-axis.

Sanitary fittings (1), in particular according to the preamble of claim 1 or according to one of the preceding claims, wherein an annular chamber (24) in a flow direction downstream of a diffuser (3), which opens into at least one outlet nozzle (25), wherein behind the at least one outlet nozzle (25) at least one ventilation opening (32) is formed, via which outside air to produce a ventilated water jet can be supplied, wherein between the diffuser (3) and the annular chamber (24) an inflowing water in the annular chamber (24) leading Guiding surface (27) is formed, characterized in that the annular chamber (24) in a above an extension of the guide surface (27) in the annular chamber (24) located part-annular chamber (31) in a longitudinal section has a contour into which an ellipse (26, 28) having an aspect ratio greater than 0.52, preferably greater than or equal to 0.55, more preferably greater than or equal to 0.6 or even 0.69, having a small semi-axis to a large semi-axis.

Sanitary installations (1) according to one of the preceding claims, characterized in that the annular chamber (24) has a quadrangular, in particular parallelogram-shaped, longitudinal section. 16. Sanitary installations (1) according to one of the preceding

Claims, characterized in that an upper

Cover on in the annular chamber (24) protruding

Protrusions is placed.

Sanitary installations (1) according to one of the preceding claims, characterized in that downstream of the outlet nozzle (25) a plurality of ventilation openings (32) over a circumference of the installation part (1) are preferably evenly distributed.

Sanitary installations (1) according to one of the preceding claims, characterized in that the outlet nozzle (25) is formed by an annular gap.

Sanitary installations (1) according to one of the preceding claims, characterized in that the annular chamber (24) is offset in a longitudinal section with respect to an upstream collecting chamber (18) down and / or that the annular chamber (24) above and below one or the guide surface (27) extends.

Sanitary installations (1) according to one of the preceding claims, characterized in that between the Sammelkämmer (18) and the annular chamber (24) a plurality of spaced-apart passage openings (19) are formed.