WO2008089808A1 - Jet diffusor - Google Patents

Abstract

The invention relates to a jet diffuser (1) having a diffuser housing (8) that can be installed in the water discharge of a sanitary outlet fitting, and having a jet divider (12) in the interior of the housing, dividing the inflowing water flow into a plurality of individual jets, a mixing zone (14) being disposed downstream of the divider for diffusing the individual jets, wherein at least one diffusing channel (16) is provided that ends in the mixing zone (14). Characteristic to the jet diffuser according to the invention is that a throttle or locking piece (18) is provided for reducing and/or optionally activating or deactivating the diffusing function, the throttle or locking piece being displaceable between an open position opening the at least one diffusing channel (16) and a throttle or locking position at least partially closing the at least one diffusing channel (16) by means of a rotary and/or sliding movement (see FIG. 1).

Description

 Jet Aerators

The invention relates to a jet aerator with an aerator, which is insertable into the water outlet of a sanitary outlet fitting and in its housing interior one, the inflowing water flow m has a plurality of individual beams dividing beam splitter downstream of a mixing zone for aerating the individual beams, wherein at least one m the mixing zone opening venting channel is provided.

Such jet aerators are already known in various designs. The previously known jet aerators have an aerator housing that can be used in the water outlet of a sanitary outlet fitting. In the housing interior of the aerator housing a jet splitter is provided, which can be configured for example as a perforated plate or a diffuser and divides the jet of water flowing to the water flow m a plurality of individual beams. The jet splitter in the aerator housing downstream of a mixing zone downstream, in which the individual jets are aerated before m merged and formed m subsequent functional units of Strahlbelüfters again to a homogeneous, pearly soft and non-sharp overall jet. In order to be able to supply the required air to the mixing zone, at least one ventilation channel is provided which can be formed, for example, by the annular space arranged between an outlet mouthpiece and the aerator housing and leading to mouth openings in the aerator housing. The aspired with the previously known Strahlbelüftern ventilation of the effluent from the outlet water jet makes itself felt in a variety of air bubbles, which discolor seemingly white the outflowing water jet. In some cultures, however, only a clear, uncolored and thus unaerated water jet is tolerated as food. In addition, the aeration of the water jet may increase the risk that germs are introduced into the water jet, which is why such aeration of the water jet is partially avoided, for example, in hospitals. In such cases, aerators are used, where aeration of the water jet is not possible. Depending on the purpose and area of application, different types of jet regulators can therefore be manufactured and supplied.

In DE-AS 1 107 607 various embodiments of a device are already described, which serves to ventilate under pressure escaping water, especially in domestic water pipes. In the prior art device outside air can occur freely below a perforated transverse wall, wherein the division of the water and its intimate mixing with air causes a screen body, which is dimensioned so that it emerges from a contiguous, interspersed with air bubbles water stream. In order to influence the composition of the water-air mixture produced and, if necessary, to switch on or off the ventilation function, in the previously known device the flow cross-section of the perforated transverse wall and thus the velocity of the water flowing through the transverse wall and impinging on the screen body adjustable. In this prior art device, however, it is disadvantageous that the ventilation function is regulated only indirectly via a change in the flow rate or flow rate of the water flowing to the mixing zone and that with the regulation of the ventilation function at the same time other parameters of the outflowing water jet are changed. As a result, the handling of the prior art device is much more difficult.

It has also already provided a device in which in the area below the transverse wall openings, in which the outside air can enter freely, for the production of aerated or unaerated beams optionally screens or screen-free outlet openings can be brought (see DE-AS 1,184,706). However, since such sieves can decelerate the exiting water jet, other parameters of the outgoing water jet are noticeably changed beyond the ventilation function in this device as well. In addition, this known device does not allow stepless adjustment of the ventilation function.

DE 34 18 165 C2 already discloses a device with a ventilation device for aerating the water jet emerging from a tap, which ventilation device has a plurality of transverse walls arranged transversely to the outflow direction of the water jet, at least downstream of which air can be supplied behind the first transverse wall is. In this case, the amount of water per unit of time can be adjusted by rotating a downstream of the aerator protruding spindle. In the previously known from DE 34 18 165 C2 device so a variable in its flow rate water jet is generated, which is always ventilated.

Starting from this prior art, the present invention has the object to provide a Strahlbe- fan whose ventilation function can be varied in a simple manner, which is correspondingly versatile and which takes into account the reservations over conventional beam regulators. The achievement of this object is in a generic Strahlbelüfter particular that the

Throttles and / or optional connection or disconnection of the ventilation function, a throttle or closing piece is provided, which by means of a rotary and / or sliding movement between the at least one ventilation duct opening

Open position and the at least one ventilation duct at least partially closing throttle or closed position is movable.

In the case of the jet aerator according to the invention, the ventilation function can be throttled and / or optionally switched on or off. The jet aerator according to the invention has for this purpose a throttling or closing piece which can be moved by means of a rotary and / or sliding movement between an open position opening the at least one ventilation channel and a throttling or closing position which at least partially closes the at least one ventilation channel. Since the jet aerator according to the invention is intervened directly in the function of the ventilation channel and not in the water jet to be mixed with air, the ventilation function of the jet aerator according to the invention can be varied without at the same time accidentally introducing other parameters of the exiting water jet to be changed.

It is expedient if the throttle or closing piece in the throttle or closed position at least partially closes the ventilation channel in the region of its at least one channel opening leading to the mixing zone and / or in the region of its at least one channel outlet.

A particularly simple yet advantageous embodiment according to the invention provides that the throttle or Locking piece is sleeve-shaped and surrounds the aerator housing.

The jet aerator according to the invention can also be subsequently used in conjunction with commercially available outlet fittings when the jet aerator can be inserted into an outlet nozzle mountable at the water outlet of the outlet fitting, if the at least one ventilation channel is provided at least in sections between the outlet nozzle and the aerator housing, and when the throttle or closing piece at least partially closes the at least one ventilation channel in the region of the channel mouth or of the channel outlet. This embodiment favors the versatile applicability of the jet aerator according to the invention.

It is expedient if the throttle or closing piece is held rotatably and / or displaceably on the aerator housing or on the outlet mouthpiece.

An embodiment according to the invention provides that the throttle or closing piece in its open position and / or m its throttle or closed position is preferably releasably latched.

It may be useful if the throttle or closing piece is connected via a screw thread with the outlet nozzle.

Another embodiment according to the invention is that the throttle or closing piece carries an annular seal, the m the throttling or closing position of the throttle or closing piece at least partially closes the inlet opening of the provided between the outlet mouthpiece and Belüftergehäuse ventilation channel. Further features according to the invention will become apparent from the following description of the figures and the claims. The invention will be described in more detail below with reference to advantageous embodiments.

It shows:

1 to 2 a jet aerator, in which a venting channel leading to a mixing zone in the aerator housing can be opened and closed in the region of the inlet opening,

3 to 4 a jet aerator, in which the inlet opening of the ventilation channel is delimited by a sealing surface on the aerator housing, which cooperates with a counter-sealing surface on a m orifice movable toward the aerator housing m,

5 to 6 a jet aerator, which is insertable into an outlet mouthpiece which, instead of the internal thread provided in FIGS. 3 and 4, carries an external thread with which the outlet mouthpiece can be detachably mounted on a sanitary outlet fitting,

7 to 8 a jet aerator, in which a throttling or closing piece is axially displaceably guided on the aerator housing, which m closes its closed position leading to a mixing zone in the housing interior mouth openings of the ventilation duct,

9 to 12 a jet aerator, wherein the throttle or closing piece rotatable on Belüfterge- housing is held and circumferentially carries ventilation openings which are aligned in the open position of the closing piece with orifices in the aerator housing, while the closing piece m closes the mouth openings in its closed position,

13 to 16 a jet aerator whose throttling or closing piece has a rotating piece held rotatably on the outlet mouthpiece and a closure piece guided axially displaceably on the aerator housing, wherein the rotating piece and closure piece are connected to one another by means of a screw connection which rotates on the rotating piece m converts an axial sliding movement of the closure piece,

Fig. 17 to 19 with a largely comparable to Figure 13 to 16 designed aerator and

Fig. 20 to 24 a jet aerator whose throttle or closing piece is guided axially displaceably on Belüftergehäuse and m closes its closed position, the mouth openings on Belüftergehäuse.

FIGS. 1 to 24 show a jet aerator m in various embodiments 1, 2, 3, 4, 5, 6 and 7. The jet aerator 1, 2, 3, 4, 5, 6 and 7 has an aerator housing 8, which can be mounted on the water outlet of a sanitary outlet fitting not shown here. For this purpose, an outlet mouthpiece 9 is provided which is screwed to an external thread 10 or an internal thread 11 at a counter thread provided at the water outlet of the outlet fitting and into which the jet aerator 1, 2, 3, 4, 5, 6 and 7 are supplied. strömseite the outlet mouthpiece 9 can be used up to a plug stop.

The jet aerator 1, 2, 3, 4, 5, 6 and 7 has in the housing interior of its aerator 8 a jet splitter 12, the water jet flowing to the jet aerator 1, 2, 3, 4, 5, 6 and 7 in divided a variety of single beams. This jet splitter 12 may be formed as a perforated plate, - m the present figures, the jet disintegrator 12, however, is designed as a cup-shaped diffuser, the m at the peripheral edge of its cup shape uniformly spaced equidistantly arranged flow openings 13 has. The jet splitter 12 is downstream of the aerator housing 8 downstream of a mixing zone m the individual jets can be vented before m a downstream and preferably designed as a honeycomb perforated plate 15 flow rectifier or optionally m further upstream functional units of Strahlbelüfters 1, 2, 3, 4, 5, 6 and 7 are formed into a homogeneous, pearlescent and non-squirting water jet and merged.

In order to be able to ventilate the individual beams m of the mixing zone 14, a ventilation duct 16 designed as an annular space is provided between the outlet mouthpiece 9 and the aerator housing 8, which opens several outlet openings 17 circumferentially arranged on the housing circumference of the aerator housing 8 and serving as a channel outlet. Due to the narrowing of the beam cross section in the region of the jet splitter 12 and the consequent increase in the speed of the individual jets in comparison to the incoming water flow, a negative pressure is created in the mixing zone 14 which leads to the suction of air via the ventilation channel 16.

From a comparison of Figures 1 to 24, we clearly see that the ventilation function of the jet aerator 1, 2, 3, 4, 5, 6, 7 optionally switched on or off. For this purpose, a throttle or closing piece 18 is provided which can be moved by means of a rotary and / or sliding movement between an open position opening the at least one ventilation channel 16 and a closed position closing the at least one ventilation channel 16. Since the ventilation function is infinitely variable in the embodiments 1, 2, 3, 4, 5, 6, 7 shown here, intermediate positions are also possible with venting function throttled in relation to the open position.

The throttle or closing piece 18 is sleeve-shaped and surrounds the fan housing 8. While in the m Figures 1 to 6 and 13 to 16 beam regulators 1, 2, 5, the throttle or closing piece 18 the ventilation duct 16 in the region of at least one channel inlet 19, the throttle or closing piece 18 of the jet aerators 3, 4, 6 and 7 shown in the other figures is able to block in the area of its at least one channel opening leading to the mixing zone 14.

In the jet aerators 3, 4 and 7 shown in FIGS. 7 to 12 and 20 to 24, the throttle or closing piece 18 is held rotatably and / or displaceably on the aerator housing 8. In contrast, in the jet aerators 1, 2, 5 and 6, the throttle or closing piece 18 at the outlet nozzle 9 is movably guided.

The throttle or closing piece 18 of the jet aerator 3, 4, 7 is releasably latched at least m the closed position.

In the jet aerators 1, 2 shown in FIGS. 1 to 4, the throttling or closing piece 18 is rotatable via a screw thread 20 and axially adjustable on the outer circumference of the outlet nozzle. Piece 9 kept. The throttle or closing piece 18 of the jet aerator 1 illustrated in FIGS. 1 and 2 carries on its inner periphery a ring seal 21 which closes the passage of the throttling or closing piece between the outlet mouthpiece 9 and the aerator housing 8.

The jet aerator 2 illustrated in FIGS. 3 and 4 has a circumferential sealing surface 22 on the outlet-side end edge region of its aerator housing 8, which cooperates with a counter-sealing surface 23 on the throttling or closing piece 18. As can be seen from the open position shown in FIG. 4, the inlet opening 19 of the ventilation channel 8 is surrounded by the sealing surface 22 and the counter-sealing surface 23, which has a corresponding slope to the jet aerator longitudinal axis.

By a rotary movement on the throttle or closing piece 18, the closing piece 18 is screwed onto the outlet mouthpiece 9 in such a manner that, in the closed position according to FIG. 3, the sealing face 22 acts sealingly on the counter-sealing face 23. In this case, between the throttle or closing piece 18 on the one hand and outlet nozzle 9 on the other hand provided annular gap is sealed by means of a ring seal 24 which is held in an annular groove 25 on the outer circumference of the outlet nozzle 9.

While the outlet mouthpiece 9 of the jet regulator 2 shown in FIGS. 3 and 4 can be fastened with an internal thread 11 to the water outlet of a sanitary outlet fitting, an external thread 10 is provided for this purpose in the jet aerator 2 depicted in FIGS. 5 and 6.

The aerator housing 8 of the jet aerator 3 shown in FIGS. 7 and 8 has at its downstream housing circumferential area. edge orifice openings 17, which are closable by means of a throttle or closing piece 18, which is guided axially displaceably on the outer circumference of the aerator 8. The throttle or closing piece 18 has corresponding passage openings 26 which are aligned only in the open position shown in FIG. 8 with the outlet openings 17 leading to the mixing zone 14. In the open and m the closed position, the throttle or closing piece 18 on the housing outer circumference of the Strahlbelüfters be releasably locked.

FIGS. 9 to 12 show a comparatively designed jet aerator 4 whose passage openings 26 can, however, be covered by a rotational movement with the outlet openings on the aerator housing 8 m. In order to be able to perceive that the jet aerator 4 m is in the open position shown in FIGS. 10 and 11, corresponding latching means 27, 28 are provided between the aerator housing 8 and the throttling or closing piece 18, which m in the various open and closed positions, respectively engage.

The jet aerators 5, 6 shown in FIGS. 13 to 19 have a two-part throttle or closing piece 18 with a rotary piece 29 rotatably held on the outlet nozzle 9 and a closure piece 30 guided axially displaceably on the jet aerator 5, 6. In this case, the rotary piece 29 and the closure piece 30 are connected to one another via a screw connection 31, which converts a rotary movement on the rotary piece 29 into an axial sliding movement of the closure piece 30. By turning the rotary piece 29, the closure piece 30 of the m Figure 13 and 15 shown open position m m Figure 14 shown closed position can be adjusted axially until the provided on the inner circumference of the closure piece 30 counter-sealing surface 23 arranged on the downstream end edge region of the aerator 8 sealing surface 22 applied sealingly. Em comparably ausgestalteter jet aerator 6 is shown in Figures 17 to 19. However, the jet aerator 6 on the water outlet of the jet aerator 6 facing side of the mouth openings 17 on a bead-shaped projecting sealing surface 22 which cooperates with the inflow-side and a corresponding slope having end edge region of the closure piece 30, which end edge region forms the counter-sealing surface 23. In FIG. 19, it is indicated that the outer circumference of the rotary piece is configured in a non-circular manner so that the user can clamp the rotary piece in a rotationally fixed manner between the fingers.

The jet aerator 7 shown in Figure 20 to 24 has at its aerator 8, the axially displaceable guided throttle or closing piece 18 which m can lock its open position according to Figure 21 and in its closed position according to Figure 20 on the aerator 8 each.

The Strahlbelüfter 1, 2, 3, 4, 5, 6, 7 wear on the inflow side a Vorsatzsieb 34, which retain the entrained in the water dirt particles and the proper function of Strahlbelüfters 1, 2, 3, 4, 5, 6, 7 secure. All jet aerators 1, 2, 3, 4, 5, 6, 7 carry an inlet-side sealing ring 37 which can be tightly clamped between the jet aerators 1, 2, 3, 4, B, 6, 7 and the adjacent end edge of the water outlet of the outlet fitting is.

In the figures 20 to 24 it can be seen that at the outer end edge region of the throttle or locking piece 18, a handle 36 protrudes. This handle 36 is integrally formed on the throttle or striker 18 and formed by a wall section of the throttle or striker 18 extending to a longitudinal median plane, which flank section is illustrated in FIGS. 20 and 21. gangs- or ready position can be bent in the use position shown in Figures 22 and 23 to the longitudinal center plane. In this position of use, the throttle or closing piece 18 can be grasped on the handle 36 and moved in the desired direction of rotation. To better grip the handle 36, this has a preferably centrally arranged and outwardly to about the outlet nozzle 9 protruding projection 35.

/ Claims

Claims

claims 1. jet aerator (1, 2, 3, 4, 5, 6, 7) with an aerator housing (8) which can be inserted into the water outlet of a sanitary outlet fitting and m its housing interior one, the inflowing water flow m a plurality of individual beams dividing jet splitter ( 12), downstream of which a mixing zone (14) for venting the individual jets is connected, wherein at least one in the mixing zone (14) opening venting channel (8) is provided, characterized in that for throttling and or optional connection or disconnection of the ventilation function a throttling or closing piece (18) is provided, which by means of a rotary and / or sliding movement between one of the at least one ventilation duct (8) opening open position and the at least one ventilation channel (8) at least partially closing throttle or closed position is movable (see Fig .. 1 to 24). 2. jet aerator according to claim 1, characterized in that the throttle or closing piece (18) in the throttle or closed position the at least one ventilation channel (8) in the region of at least one channel leading to the mixing zone (14) and / or in the region of at least one Channel inlet (19) at least partially closes (see Fig. 1 to 24). 3. jet aerator according to one of claims 1 or 2, character- ized in that the throttle or closing ^¬ piece (18) is sleeve-shaped and the aerator housing (8) engages around (cf., Fig. 1 to 24). 4. jet aerator according to one of claims 1 to 3, characterized in that the jet aerator (1, 2, 3, 4, 5, 6, 7) can be inserted into an outlet mouthpiece (9) which can be mounted on the water outlet of the outlet fitting, that the at least one ventilation channel (16) is provided at least in sections between the outlet mouthpiece (9) and the aerator housing (8), and that the throttling or closing piece (18) at least partially closes the at least one ventilation channel (16) in the region of the channel mouth or of the channel outlet (19) (see FIGS. 1 to 24). 5. jet aerator according to one of claims 1 to 4, characterized in that the throttle or closing piece (18) on the aerator housing (8) or on the outlet nozzle (9) is rotatably and / or displaceably held (cf., Fig. 1 to 24) , 6. jet aerator according to one of claims 1 to 5, characterized in that the jet aerator (3, 4, 7) at the periphery of its aerator (8) at least one mixing zone (14) leading mouth opening (17), and that the sleeve-shaped throttle or closing piece (18) in its throttling or closing position which at least partially closes off at least one opening (17) (compare FIGS. 7 to 12, 20 to 24). 7. jet aerator according to one of claims 1 to 6, characterized in that the throttle or closing piece (18) m in its open position and / or in its throttle or closed position can be latched (cf., Fig. 7 to 12, 20 to 24) , 8. jet aerator according to one of claims 1 to 7, characterized in that the throttle or closing piece (18) via a screw thread (20) with the outlet nozzle is connected (see Fig. 1 to 4). 9. jet aerator according to one of claims 1 to 8, characterized in that the throttle or locking piece (18) carries a ring seal, the m the throttle or closed position of the throttle or closing piece (18), the inlet opening (19) of the outlet nozzle between (9) and ventilator housing (8) provided ventilation duct (16) at least partially closes (see Fig. 1 to 4, 13 to 16). 10. jet aerator according to one of claims 1 to 9, characterized in that the throttle or closing piece (18) surrounds the outlet mouthpiece (9), and that the outer circumference of the throttle or closing piece (18) is designed as a handle (see FIGS. 1 to 4, 13 to 16). 11. jet aerator according to one of claims 1 to 10, characterized in that the aerator housing (8) has a circumferential sealing surface (22) is provided, which cooperates with a counter-sealing surface (23) on the throttle or locking piece (18), and that the throttle or closing piece (18) in its closed position with its counter-sealing surface (23) sealingly acts on the sealing surface (22) on the aerator housing (cf. FIGS. 3 to 4, 13 to 16, 17 to 19). 12. jet aerator according to one of claims 1 to 11, characterized in that the inlet opening (19) of the at least one ventilation channel (16) of the sealing surface (22) and the counter-sealing surface (23) is bounded (see Fig .. 3 bis 4, 13 to 16). 13. A jet aerator according to one of claims 1 to 12, characterized in that the throttling or closing piece (18) is configured in two parts and has a rotary piece (29) rotatably supported on the outlet mouthpiece (9) and a closure piece (30) which is displaceably guided in the axial direction on the aerator housing (8) and has the rotary piece (29) and closure piece (30) via a Screw connection (31) are connected, which converts a rotational movement on the rotary piece (29) m an axially oriented sliding movement of the closure piece (30) (see Fig. 13 to 19). 14. jet aerator according to one of claims 1 to 13, characterized in that the closure piece (30), the counter-sealing surface (23) carries (see, Fig. 13 to 19). 15. jet aerator according to one of claims 1 to 14, characterized in that the Belüftergehäuse (8) provided circumferential sealing surface (22) at the outlet side end edge region of the aerator housing (8) or at the housing circumference below the at least one mouth opening (17) is arranged (see Fig. 13 to 19). 16. jet aerator according to one of claims 1 to 15, characterized in that at the outer end edge region of the throttle or locking piece (18) a handle (35) protrudes (see Fig .. 20 to 24). 17. jet aerator according to one of claims 1 to 16, characterized in that the handle (35) is provided at a portion of the throttle or closing piece peripheral wall, which part separated by a region on both sides to the Strahlbelüfter longitudinal median plane wall recess (36) and m is deflectable in the direction of the jet aerator longitudinal center plane (see Fig. 20 to 24). / Summary