EP2233652B1 - Flush device for a water closet and method of operating such a device - Google Patents

Flush device for a water closet and method of operating such a device Download PDF

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Publication number
EP2233652B1
EP2233652B1 EP09405125.7A EP09405125A EP2233652B1 EP 2233652 B1 EP2233652 B1 EP 2233652B1 EP 09405125 A EP09405125 A EP 09405125A EP 2233652 B1 EP2233652 B1 EP 2233652B1
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EP
European Patent Office
Prior art keywords
flushing
water
toilet bowl
arrangement according
bend
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Application number
EP09405125.7A
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German (de)
French (fr)
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EP2233652A1 (en
Inventor
Urs Inglin
Abdullah Oengören
Peter Schwendener
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Geberit International AG
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Geberit International AG
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Publication date
Application filed by Geberit International AG filed Critical Geberit International AG
Priority to EP09405125.7A priority Critical patent/EP2233652B1/en
Priority to AU2010202596A priority patent/AU2010202596B2/en
Priority to US12/836,354 priority patent/US8327472B2/en
Priority to CN201010235065.6A priority patent/CN101962967B/en
Publication of EP2233652A1 publication Critical patent/EP2233652A1/en
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Publication of EP2233652B1 publication Critical patent/EP2233652B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
    • E03D11/02—Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
    • E03D11/08—Bowls with means producing a flushing water swirl
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D2201/00—Details and methods of use for water closets and urinals not otherwise provided for
    • E03D2201/30—Water injection in siphon for enhancing flushing

Definitions

  • the invention relates to a flushing device according to the preamble of claim 1.
  • the consumption of rinse water can be significantly reduced in a water closet, if according to the WO 95/04196 Applicant during a rinse the water present in the siphon arc is set in motion with a so-called jet nozzle. With the water discharged through the nozzle into the siphon at a comparatively high velocity, the siphon water can be accelerated toward the exit, so that the siphon is better purged.
  • the disadvantage here is that caused by the water flowing into the siphon additional noise and also the effect of the jet nozzle can be at least greatly reduced by solids in the siphon.
  • Water closets, each with a arranged in the descending region of the siphon jet nozzle are also by the US 2008/0060122 A and the generic US 3,984,878 known.
  • a water closet which also has a jet nozzle. Through the nozzle, a mixture of water and air is injected. At the front end of the nozzle, a vacuum chamber is arranged to ensure that the water-air mixture is channeled in the direction of the axis of the inlet of the siphon, as mentioned in [0027]. The injection of said mixture should also cause additional noise.
  • the US 287,225 discloses a water closet, which has a nozzle in the flushing water nozzle, with which a water jet can be directed against the siphon water for rinsing. When the water jet hits the siphon water, loud noises and splash water are likely to occur.
  • the invention has for its object to provide a flushing device of the type mentioned, which avoids the disadvantages mentioned and also allows an even more effective cleaning effect.
  • the object is achieved in a generic flushing device according to claim 1.
  • a generic flushing device With such a flow cone, the descending region of the siphon can be cleaned particularly effectively. This area is usually more polluted than the overlying area of the toilet bowl. This usually slightly dirty area can usually be sufficiently cleaned by the main rinse generated at the edge of the toilet bowl.
  • the contents of the siphon With the flow cone, the contents of the siphon can be ejected and also said area can be cleaned more effectively than before. This flow moves downwards at a comparatively high speed.
  • the flow can be compressed and finally can hit a saddle point in the lower part of the toilet bowl on the inside of the toilet bowl and reflected there.
  • This creates a very compact wall jet which greatly accelerates the water in the lower part of the siphon towards the exit.
  • This lower area of the siphon is usually the most polluted area.
  • the wall jet has a very high impulse density and thus creates strong local dynamic forces on the inside of the siphon, on the siphon water and on solids that are in the lower part of the siphon. Both the siphon water and the solids are pushed against the outlet particularly effectively by this wall jet. This process continues until all the contents of the toilet bowl have been flushed out. Due to the high momentum density, residual solids left on the inside of the bowl dissolve even more thoroughly than before.
  • the inventive flushing device thus allows an even more thorough flushing and thus even better hygiene. In addition, it has been shown that the noise is significantly reduced.
  • the means are arranged in the area of the siphon water line of the toilet bowl.
  • This can be a special effective wall jet are formed.
  • the downward flow cleans the inside of the toilet bowl below the siphon water line.
  • the means are preferably arranged immediately above or below the siphon water line.
  • the means have a plurality of impulse nozzles or at least one annular gap.
  • the plurality of impulse nozzles are arranged in a ring and give the conical downward flow.
  • These impulse nozzles can be designed the same. But it is also conceivable that these impulse nozzles are designed differently.
  • said means may have an annular gap. The water flows down through this annular gap and also results in a conical flow.
  • the annular gap can extend around the entire inside of the toilet bowl or the siphon. However, it is also conceivable training with several such annular gaps.
  • the pulse nozzles can be arranged individually on the toilet bowl, but alternatively be connected to each other via an annular channel. This annular channel may extend partially or completely around the circumference of the toilet bowl. Also conceivable is a combination of impulse nozzles and at least one annular gap.
  • the pulse can be generated by water, air or a water-air mixture.
  • the descending region of the siphon has a downwardly tapering inner side and that during flushing medium flowing out of the means flows along this inner side down to a saddle point arranged in a lower region of the siphon.
  • the saddle point is preferably seen in the flow direction before the lowest point of the siphon.
  • the wall jet forming in the saddle point is preferably directed so as to extend horizontally into the siphon.
  • the wall jet consists of one or more rotating vortices and a core jet. This results in a particularly thorough cleaning and rinsing of the siphon.
  • the invention also relates to a method for operating such a flushing device.
  • a main rinse is triggered by said means, wherein the rinse water from a conventional rinsing channel into the Toilet bowl flows.
  • This main rinse can be done substantially simultaneously with the rinsing to the said means. Conceivable, however, is also a serial flush.
  • the main rinse can thus also take place before or after rinsing with the means mentioned.
  • the flushing device 1 shown has a toilet bowl 2, which has an inlet 3 and an outlet 21.
  • a per se known and not shown here flushing channel is arranged, from which flows in a main rinse water in the direction of arrows 6 along an inner side 27 down into a siphon 4.
  • the water 13 located in the siphon 4 is ejected from the siphon 4 and leaves the toilet bowl 2 at the outlet 21 and from there into a downpipe not shown here.
  • the toilet bowl 2 thus has a descending region which extends to a vertex 25 of the siphon 4. Then the ascending area begins.
  • the water 13 forms a siphon water line 24 in the descending region and a siphon water line 24 'in the ascending region. Both siphon water lines 24 and 24 'are of course in the same horizontal plane.
  • the water of the main rinse comes from a cistern, not shown here, or directly from a water pipe.
  • a pulse In the region of the siphon water line 24 in the descending region of the toilet bowl 2 means for generating a pulse are provided.
  • These funds include according to Fig. 1 a plurality of impulse nozzles 8, which form a flow cone 14 along the inside 27 of the toilet bowl 2. This flow cone 14 has a cleaning effect on the inside of the toilet bowl 2 in the descending region.
  • These pulse nozzles 8 are arranged on a distributor ring 11, which is annular and forms a likewise annular channel 12.
  • the openings of the pulse nozzles 8 are arranged on the inside 27 of the toilet bowl 2 and in the case of a flushing in each case form a jet 14a which is directed downwards and has a comparatively high speed.
  • the distributor ring 11 has an inlet tube 10 through which water can be introduced into the channel 12 in the direction of the arrow 9.
  • the water is introduced here under pressure.
  • air or an air-water mixture can be introduced into the channel 12. Air or an air-water mixture then flows from the impulse nozzles 8 into the toilet bowl 2.
  • the water 13 is accelerated toward the outlet 21 through the rays 14a. Due to the conical or curved inner side 27, the beams 14a of the pulse nozzles 8 converge in the shape of the flow cone 14.
  • the beam 14a or the flow cone is focused on a saddle point 26, which is located in the lower region on the inner side 27 of the siphon 4.
  • the saddle point 26 which of course is not a point in the geometric sense, is formed by a lower portion of the inner side 22 of the siphon bow 4.
  • a wall jet 28 which forms in Fig. 1 indicated by dashed lines.
  • This wall jet 28 has a very high momentum density and extends substantially horizontally into the siphon arc 4.
  • the water in the siphon 4 in the direction of arrows 18 is first substantially horizontal and then in the direction of the arrows 19 in the ascending region of the siphon 4 accelerated diagonally upwards.
  • the water 13 is ejected from the siphon bend 4 and passes into an outlet pipe 5 to the outlet 21.
  • any solids present are also expelled with the water 13.
  • the usually heavily soiled inside 22 is rinsed very effectively in the area of the siphon 4 and thus also cleaned of solids.
  • the emptied siphon sheet 4 is refilled with water of the main rinse.
  • the pulse is applied during a comparatively short period of, for example, two to three seconds.
  • the wall jet 28 can according to Fig. 1 have rotating vortices 16, which the Rinse and clean the inside of the siphon arch 4. In particular, two symmetrical vortices 16 were detected.
  • the wall jet 28 may have a directed against the outlet 21 core beam not shown here. This also causes the expulsion of the water 13, as shown by the arrows 18 and 19.
  • an annular gap 20 is provided from which the water in the form of a flow cone 14 'flows downwards.
  • the annular gap 20 is also substantially annular and, as can be seen, directed downwards along the inner side 27.
  • the inflowing medium may be water, air or an air-water mixture.
  • the supply of the medium takes place here also via a channel 12 '.
  • a plurality of annular gaps may also be present. Also conceivable is a combination of individual impulse nozzles 8 and an annular gap 20.
  • annular gaps 20 are arranged one above the other.
  • a plurality of annular flow cones 14 would thus be arranged one above the other. Accordingly, then two or more channels 12 and 12 'may be provided.
  • the flushing device 1 "according to Fig. 3 essentially corresponds to that according to Fig. 1 , however, the impulse nozzles 8 are arranged here directly above the siphon water line 24.
  • the flow cones 14 are thus formed of the siphon water line 24 along the inside 27 and then reach the height of the siphon water line 24 into the water 13 of the siphon bend 4.
  • a corresponding arrangement is in the flushing device 1 'according to Fig. 2 possible.
  • the pulse nozzles 8 and the annular gap 20 can also be arranged directly below the siphon water line 24 in the descending region of the siphon bend 4. Preferably, however, these are arranged substantially in front of the vertex 25.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sanitary Device For Flush Toilet (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)

Description

Die Erfindung betrifft eine Spülvorrichtung nach dem Oberbegriff des Anspruches 1.The invention relates to a flushing device according to the preamble of claim 1.

Der Verbrauch von Spülwasser kann bei einem Wasserklosett wesentlich gesenkt werden, wenn gemäss der WO 95/04196 des Anmelders während einer Spülung das im Siphonbogen vorliegende Wasser mit einer sogenannten Jet-Düse in Bewegung gesetzt wird. Mit dem durch die Düse in den Siphon mit vergleichsweise hoher Geschwindigkeit abgegebenem Wasser kann das Siphonwasser gegen den Ausgang hin beschleunigt werden, so dass der Siphon besser ausgespült wird. Nachteilig ist hierbei, dass durch das in den Siphon einströmende Wasser zusätzliche Geräusche entstehen und zudem die Wirkung der Jet-Düse durch Feststoffe im Siphon zumindest stark vermindert werden kann. Wasserklosetts mit jeweils einer im absteigenden Bereich des Siphons angeordneten Jet-Düse sind zudem durch die US 2008/0060122 A und die gattungsgemäße US 3,984,878 bekannt geworden.The consumption of rinse water can be significantly reduced in a water closet, if according to the WO 95/04196 Applicant during a rinse the water present in the siphon arc is set in motion with a so-called jet nozzle. With the water discharged through the nozzle into the siphon at a comparatively high velocity, the siphon water can be accelerated toward the exit, so that the siphon is better purged. The disadvantage here is that caused by the water flowing into the siphon additional noise and also the effect of the jet nozzle can be at least greatly reduced by solids in the siphon. Water closets, each with a arranged in the descending region of the siphon jet nozzle are also by the US 2008/0060122 A and the generic US 3,984,878 known.

Durch die EP-A-103 43 38 ist ein Wasserklosett bekannt geworden, das ebenfalls eine Jet-Düse aufweist. Durch die Düse wird ein Gemisch aus Wasser und Luft eingespritzt. Am vorderen Ende der Düse ist eine Unterdruckkammer angeordnet, die gewährleisten soll, dass das Wasser-Luft-Gemisch in der Richtung der Achse des Eingangs des Siphons kanalisiert wird, wie dies in [0027] erwähnt ist. Durch das Einspritzen des genannten Gemisches dürfte ebenfalls zusätzliches Geräusch entstehen.By the EP-A-103 43 38 a water closet has become known, which also has a jet nozzle. Through the nozzle, a mixture of water and air is injected. At the front end of the nozzle, a vacuum chamber is arranged to ensure that the water-air mixture is channeled in the direction of the axis of the inlet of the siphon, as mentioned in [0027]. The injection of said mixture should also cause additional noise.

Die US 287,225 offenbart ein Wasserklosett, das im Spülwasserstutzen eine Düse aufweist, mit welcher zum Spülen ein Wasserstrahl gegen das Siphonwasser gerichtet werden kann. Beim Auftreffen des Wasserstrahls auf das Siphonwasser dürften laute Geräusche und Spritzwasser entstehen.The US 287,225 discloses a water closet, which has a nozzle in the flushing water nozzle, with which a water jet can be directed against the siphon water for rinsing. When the water jet hits the siphon water, loud noises and splash water are likely to occur.

Untersuchungen haben gezeigt, dass beim Vorliegen von festen Bestandteilen im Siphon die beschleunigende Wirkung der Jet-Düse stark vermindert ist.Studies have shown that in the presence of solid components in the siphon, the accelerating effect of the jet nozzle is greatly reduced.

Der Erfindung liegt die Aufgabe zugrunde, eine Spülvorrichtung der genannten Art zu schaffen, welche die genannten Nachteile vermeidet und zudem eine noch wirksamere Reinigungswirkung ermöglicht.The invention has for its object to provide a flushing device of the type mentioned, which avoids the disadvantages mentioned and also allows an even more effective cleaning effect.

Die Aufgabe ist bei einer gattungsgemässen Spülvorrichtung gemäss Anspruch 1 gelöst. Mit einem solchen Strömungskegel kann der absteigende Bereich des Siphons besonders wirksam gereinigt werden. Dieser Bereich ist in der Regel stärker verschmutzt als der darüberliegende Bereich der Klosettschüssel. Dieser in der Regel leicht verschmutzte Bereich kann üblicherweise durch die am Rand der Klosettschüssel erzeugte Hauptspülung hinreichend gereinigt werden. Mit dem Strömungskegel kann der Inhalt des Siphons ausgestossen und zudem der genannte Bereich wirksamer als bisher gereinigt werden. Diese Strömung bewegt sich mit einer vergleichsweise hohen Geschwindigkeit nach unten.The object is achieved in a generic flushing device according to claim 1. With such a flow cone, the descending region of the siphon can be cleaned particularly effectively. This area is usually more polluted than the overlying area of the toilet bowl. This usually slightly dirty area can usually be sufficiently cleaned by the main rinse generated at the edge of the toilet bowl. With the flow cone, the contents of the siphon can be ejected and also said area can be cleaned more effectively than before. This flow moves downwards at a comparatively high speed.

Durch die gewölbte Schüsselform kann die Strömung verdichtet werden und kann schliesslich in einem Sattelpunkt im unteren Bereich der Klosettschüssel auf der Innenseite der Klosettschüssel auftreffen und dort reflektiert werden. Dadurch wird ein sehr kompakter Wandstrahl gebildet, der das Wasser im unteren Bereich des Siphons gegen den Ausgang hin stark beschleunigt. Dieser untere Bereich des Siphons ist in der Regel der am stärksten verschmutzte Bereich. Der Wandstrahl hat eine sehr hohe Impulsdichte und erzeugt dadurch starke lokale dynamische Kräfte auf die Innenseite des Siphons, auf das Siphonwasser und auf Festkörper, die sich im unteren Bereich des Siphons befinden. Sowohl das Siphonwasser als auch die Festkörper werden durch diesen Wandstrahl besonders wirksam gegen den Auslass gestossen. Dieser Vorgang dauert an, bis der gesamte Inhalt der Klosettschüssel ausgespült ist. Auf Grund der hohen Impulsdichte lösen sich auf der Innenseite der Schüssel verbleibende Feststoffreste noch gründlicher als bisher. Die erfindungsgemässe Spülvorrichtung ermöglicht somit eine noch gründlichere Spülung und damit eine noch bessere Hygiene. Zudem hat sich gezeigt, dass die Geräuschbildung wesentlich vermindert ist.Due to the curved bowl shape, the flow can be compressed and finally can hit a saddle point in the lower part of the toilet bowl on the inside of the toilet bowl and reflected there. This creates a very compact wall jet, which greatly accelerates the water in the lower part of the siphon towards the exit. This lower area of the siphon is usually the most polluted area. The wall jet has a very high impulse density and thus creates strong local dynamic forces on the inside of the siphon, on the siphon water and on solids that are in the lower part of the siphon. Both the siphon water and the solids are pushed against the outlet particularly effectively by this wall jet. This process continues until all the contents of the toilet bowl have been flushed out. Due to the high momentum density, residual solids left on the inside of the bowl dissolve even more thoroughly than before. The inventive flushing device thus allows an even more thorough flushing and thus even better hygiene. In addition, it has been shown that the noise is significantly reduced.

Gemäss der Erfindung ist vorgesehen, dass die Mittel im Bereich der Siphonwasserlinie der Klosettschüssel angeordnet sind. Dadurch kann ein besonders wirksamer Wandstrahl gebildet werden. Durch die nach unten gerichtete Strömung wird die Innenseite der Klosettschüssel unterhalb der Siphonwasserlinie gereinigt. Die Mittel sind vorzugsweise unmittelbar über oder unterhalb der Siphonwasserlinie angeordnet.According to the invention it is provided that the means are arranged in the area of the siphon water line of the toilet bowl. This can be a special effective wall jet are formed. The downward flow cleans the inside of the toilet bowl below the siphon water line. The means are preferably arranged immediately above or below the siphon water line.

Gemäss der Erfindung ist vorgesehen, dass die Mittel mehrere Impulsdüsen oder wenigstens einen Ringspalt aufweisen. Die mehreren Impulsdüsen sind ringförmig angeordnet und ergeben die konische nach unten gerichtete Strömung. Diese Impulsdüsen können gleich ausgebildet sein. Es ist aber auch denkbar, dass diese Impulsdüsen unterschiedlich ausgebildet sind. Alternativ zu mehreren Impulsdüsen können die genannten Mittel einen Ringspalt aufweisen. Das Wasser strömt durch diesen Ringspalt nach unten und ergibt ebenfalls eine konische Strömung. Der Ringspalt kann sich um die gesamte Innenseite der Klosettschüssel bzw. des Siphons erstrecken. Denkbar ist jedoch auch eine Ausbildung mit mehreren solchen Ringspalten. Die Impulsdüsen können einzeln an der Klosettschüssel angeordnet sein, alternativ aber über einen Ringkanal miteinander verbunden sein. Dieser Ringkanal kann sich teilweise oder vollständig um den Umfang der Klosettschüssel erstrecken. Denkbar ist auch eine Kombination von Impulsdüsen und wenigstens einem Ringspalt.According to the invention, it is provided that the means have a plurality of impulse nozzles or at least one annular gap. The plurality of impulse nozzles are arranged in a ring and give the conical downward flow. These impulse nozzles can be designed the same. But it is also conceivable that these impulse nozzles are designed differently. Alternatively to a plurality of impulse nozzles, said means may have an annular gap. The water flows down through this annular gap and also results in a conical flow. The annular gap can extend around the entire inside of the toilet bowl or the siphon. However, it is also conceivable training with several such annular gaps. The pulse nozzles can be arranged individually on the toilet bowl, but alternatively be connected to each other via an annular channel. This annular channel may extend partially or completely around the circumference of the toilet bowl. Also conceivable is a combination of impulse nozzles and at least one annular gap.

Der Impuls kann durch Wasser, Luft oder einem Wasser-Luft-Gemisch erzeugt werden.The pulse can be generated by water, air or a water-air mixture.

Nach einer Weiterbildung der Erfindung ist vorgesehen, dass der absteigende Bereich des Siphons eine sich nach unten verjüngende Innenseite aufweist und dass bei einer Spülung aus den Mitteln strömendes Medium entlang dieser Innenseite nach unten zu einem in einem unteren Bereich des Siphons angeordneten Sattelpunkt strömt. Der Sattelpunkt befindet sich vorzugsweise in Strömungsrichtung gesehen vor dem tiefsten Punkt des Siphons. Der im Sattelpunkt sich bildende Wandstrahl ist vorzugsweise so gerichtet, dass er sich horizontal in den Siphon erstreckt. Vorzugsweise besteht der Wandstrahl aus einem oder mehreren rotierenden Wirbeln und einem Kernstrahl. Dadurch ergibt sich eine besonders gründliche Reinigung und Ausspülung des Siphons.According to a development of the invention, it is provided that the descending region of the siphon has a downwardly tapering inner side and that during flushing medium flowing out of the means flows along this inner side down to a saddle point arranged in a lower region of the siphon. The saddle point is preferably seen in the flow direction before the lowest point of the siphon. The wall jet forming in the saddle point is preferably directed so as to extend horizontally into the siphon. Preferably, the wall jet consists of one or more rotating vortices and a core jet. This results in a particularly thorough cleaning and rinsing of the siphon.

Die Erfindung betrifft zudem ein Verfahren zum Betrieb einer solchen Spülvorrichtung. Vorzugsweise wird zusätzlich zur genannten Spülung über den genannten Mitteln eine Hauptspülung ausgelöst, bei der Spülwasser aus einem üblichen Spülkanal in die Klosettschüssel strömt. Diese Hauptspülung kann im Wesentlichen gleichzeitig mit der Spülung an die genannten Mittel erfolgen. Denkbar ist jedoch auch eine serielle Spülung. Die Hauptspülung kann somit auch vor oder nach der Spülung mit den genannten Mitteln erfolgen.The invention also relates to a method for operating such a flushing device. Preferably, in addition to said rinsing, a main rinse is triggered by said means, wherein the rinse water from a conventional rinsing channel into the Toilet bowl flows. This main rinse can be done substantially simultaneously with the rinsing to the said means. Conceivable, however, is also a serial flush. The main rinse can thus also take place before or after rinsing with the means mentioned.

Weitere vorteilhafte Merkmale ergeben sich aus den abhängigen Patentansprüchen, der nachfolgenden Beschreibung sowie der Zeichnung.
Ausführungsbeispiele der Erfindung werden nachfolgend anhand der Zeichnung näher erläutert. Es zeigen:

Fig. 1
Schematisch ein Schnitt durch eine erfindungsgemässe Spülvorrichtung,
Fig. 2
schematisch ein Schnitt durch eine Variante der erfindungsgemässen Spülvorrichtung und
Fig. 3
schematisch eine räumliche Ansicht einer weiteren Variante der erfindungsgemässen Spülvorrichtung.
Further advantageous features emerge from the dependent claims, the following description and the drawings.
Embodiments of the invention will be explained in more detail with reference to the drawing. Show it:
Fig. 1
Schematically a section through a flushing device according to the invention,
Fig. 2
schematically a section through a variant of the inventive flushing device and
Fig. 3
schematically a spatial view of another variant of the inventive flushing device.

Die in Fig. 1 gezeigte Spülvorrichtung 1 weist eine Klosettschüssel 2 auf, die einen Einlass 3 und einen Auslass 21 aufweist. Im Bereich des Einlasses 3 ist ein an sich bekannter und hier nicht gezeigter Spülkanal angeordnet, aus dem bei einer Hauptspülung Wasser in Richtung der Pfeile 6 entlang einer Innenseite 27 nach unten in einen Siphonbogen 4 strömt.In the Fig. 1 The flushing device 1 shown has a toilet bowl 2, which has an inlet 3 and an outlet 21. In the region of the inlet 3 a per se known and not shown here flushing channel is arranged, from which flows in a main rinse water in the direction of arrows 6 along an inner side 27 down into a siphon 4.

Das sich im Siphonbogen 4 befindliche Wasser 13 wird aus dem Siphonbogen 4 ausgestossen und verlässt die Klosettschüssel 2 am Auslass 21 und gelangt von dort in ein hier nicht gezeigtes Fallrohr. Die Klosettschüssel 2 besitzt somit einen absteigenden Bereich, der sich bis zu einem Scheitelpunkt 25 des Siphonbogens 4 erstreckt. Anschliessend beginnt der aufsteigende Bereich. Das Wasser 13 bildet im absteigenden Bereich eine Siphonwasserlinie 24 und im aufsteigenden Bereich eine Siphonwasserlinie 24'. Beide Siphonwasserlinien 24 und 24' befinden sich selbstverständlich in der gleichen horizontalen Ebene. Das Wasser der Hauptspülung stammt beispielsweise aus einem hier nicht gezeigten Spülkasten oder direkt aus einer Wasserleitung.The water 13 located in the siphon 4 is ejected from the siphon 4 and leaves the toilet bowl 2 at the outlet 21 and from there into a downpipe not shown here. The toilet bowl 2 thus has a descending region which extends to a vertex 25 of the siphon 4. Then the ascending area begins. The water 13 forms a siphon water line 24 in the descending region and a siphon water line 24 'in the ascending region. Both siphon water lines 24 and 24 'are of course in the same horizontal plane. The water of the main rinse, for example, comes from a cistern, not shown here, or directly from a water pipe.

Im Bereich der Siphonwasserlinie 24 im absteigenden Bereich der Klosettschüssel 2 sind Mittel zum Erzeugen eines Impulses vorgesehen. Diese Mittel umfassen gemäss Fig. 1 mehrere Impulsdüsen 8, die entlang der Innenseite 27 der Klosettschüssel 2 einen Strömungskegel 14 bilden. Dieser Strömungskegel 14 besitzt eine reinigende Wirkung auf die Innenseite der Klosettschüssel 2 im absteigenden Bereich. Diese Impulsdüsen 8 sind an einem Verteilerring 11 angeordnet, der ringförmig ausgebildet ist und einen ebenfalls ringförmigen Kanal 12 bildet. Die Öffnungen der Impulsdüsen 8 sind an der Innenseite 27 der Klosettschüssel 2 angeordnet und bilden im Fall einer Spülung jeweils einen Strahl 14a, der nach unten gerichtet ist und eine vergleichsweise hohe Geschwindigkeit besitzt. Der Verteilerring 11 besitzt ein Einlassrohr 10, durch das in Richtung des Pfeils 9 Wasser in den Kanal 12 eingeführt werden kann. Das Wasser wird hier unter Druck eingeleitet. Anstelle von Wasser kann jedoch auch Luft oder ein Luft-Wasser-Gemisch in den Kanal 12 eingeleitet werden. Aus den Impulsdüsen 8 strömt dann somit Luft oder ein Luft-Wasser-Gemisch in die Klosettschüssel 2. Durch die Strahlen 14a wird das Wasser 13 zum Auslass 21 hin beschleunigt. Auf Grund der konischen bzw. gewölbten Innenseite 27 laufen die Strahlen 14a der Impulsdüsen 8 in der Form des Strömungskegels 14 zusammen. Die Strahlen 14a bzw. der Strömungskegel ist auf einen Sattelpunkt 26 fokussiert, der sich im unteren Bereich an der Innenseite 27 des Siphonbogens 4 befindet. Der Sattelpunkt 26, der selbstverständlich kein Punkt im geometrischen Sinn ist, wird durch einen unteren Bereich der Innenseite 22 des Siphonbogens 4 gebildet. Durch eine Reflexion des Strömungskegels 14 im Sattelpunkt 26 bildet sich ein Wandstrahl 28, der in Fig. 1 mit gestrichelten Linien angedeutet ist. Dieser Wandstrahl 28 besitzt eine sehr hohe Impulsdichte und erstreckt sich im Wesentlichen horizontal in den Siphonbogen 4. Durch diesen Wandstrahl 28 wird das Wasser im Siphonbogen 4 in Richtung der Pfeile 18 zunächst im Wesentlichen horizontal und dann in Richtung der Pfeile 19 im aufsteigenden Bereich des Siphonbogens 4 schräg nach oben beschleunigt. Dadurch wird das Wasser 13 aus dem Siphonbogen 4 ausgestossen und gelangt in ein Abgangsrohr 5 zum Auslass 21. Gleichzeitig werden auch eventuell vorhandene Feststoffe mit dem Wasser 13 ausgestossen. Hierbei wird die in der Regel stark verschmutzte Innenseite 22 im Bereich des Siphonbogens 4 sehr wirksam gespült und damit auch von Feststoffen gereinigt. Der geleerte Siphonbogen 4 wird durch Wasser der Hauptspülung wieder nachgefüllt. Der Impuls wird während einer vergleichsweise kurzen Zeitdauer von beispielsweise zwei bis drei Sekunden ausgeübt.In the region of the siphon water line 24 in the descending region of the toilet bowl 2 means for generating a pulse are provided. These funds include according to Fig. 1 a plurality of impulse nozzles 8, which form a flow cone 14 along the inside 27 of the toilet bowl 2. This flow cone 14 has a cleaning effect on the inside of the toilet bowl 2 in the descending region. These pulse nozzles 8 are arranged on a distributor ring 11, which is annular and forms a likewise annular channel 12. The openings of the pulse nozzles 8 are arranged on the inside 27 of the toilet bowl 2 and in the case of a flushing in each case form a jet 14a which is directed downwards and has a comparatively high speed. The distributor ring 11 has an inlet tube 10 through which water can be introduced into the channel 12 in the direction of the arrow 9. The water is introduced here under pressure. However, instead of water, air or an air-water mixture can be introduced into the channel 12. Air or an air-water mixture then flows from the impulse nozzles 8 into the toilet bowl 2. The water 13 is accelerated toward the outlet 21 through the rays 14a. Due to the conical or curved inner side 27, the beams 14a of the pulse nozzles 8 converge in the shape of the flow cone 14. The beam 14a or the flow cone is focused on a saddle point 26, which is located in the lower region on the inner side 27 of the siphon 4. The saddle point 26, which of course is not a point in the geometric sense, is formed by a lower portion of the inner side 22 of the siphon bow 4. By a reflection of the flow cone 14 in the saddle point 26, a wall jet 28, which forms in Fig. 1 indicated by dashed lines. This wall jet 28 has a very high momentum density and extends substantially horizontally into the siphon arc 4. By this wall jet 28, the water in the siphon 4 in the direction of arrows 18 is first substantially horizontal and then in the direction of the arrows 19 in the ascending region of the siphon 4 accelerated diagonally upwards. As a result, the water 13 is ejected from the siphon bend 4 and passes into an outlet pipe 5 to the outlet 21. At the same time, any solids present are also expelled with the water 13. Here, the usually heavily soiled inside 22 is rinsed very effectively in the area of the siphon 4 and thus also cleaned of solids. The emptied siphon sheet 4 is refilled with water of the main rinse. The pulse is applied during a comparatively short period of, for example, two to three seconds.

Der Wandstrahl 28 kann gemäss Fig. 1 rotierende Wirbel 16 aufweisen, welche das Ausspülen und Reinigen der Innenseite des Siphonbogens 4 verstärken. Insbesondere wurden zwei symmetrische Wirbel 16 festgestellt. Zudem kann der Wandstrahl 28 einen gegen den Auslass 21 gerichteten hier nicht näher dargestellten Kernstrahl aufweisen. Dieser bewirkt ebenfalls das Ausstossen des Wassers 13, wie dies mit den Pfeilen 18 und 19 dargestellt ist.The wall jet 28 can according to Fig. 1 have rotating vortices 16, which the Rinse and clean the inside of the siphon arch 4. In particular, two symmetrical vortices 16 were detected. In addition, the wall jet 28 may have a directed against the outlet 21 core beam not shown here. This also causes the expulsion of the water 13, as shown by the arrows 18 and 19.

Die in Fig. 2 gezeigte Spülvorrichtung 1' unterscheidet sich von derjenigen gemäss Fig. 1 dadurch, dass anstelle der mehreren Impulsdüsen 8 ein Ringspalt 20 vorgesehen ist, aus dem das Wasser in Form eines Strömungskegels 14' nach unten ausströmt. Der Ringspalt 20 ist ebenfalls im Wesentlichen ringförmig ausgebildet und wie ersichtlich entlang der Innenseite 27 nach unten gerichtet. Auch in diesem Fall kann das einströmende Medium Wasser, Luft oder ein Luft-Wasser-Gemisch sein. Die Zufuhr des Mediums erfolgt hier ebenfalls über einen Kanal 12'. Anstelle eines einzigen umlaufenden Ringspalts 20 können auch mehrere Ringspalte vorhanden sein. Denkbar ist auch eine Kombination von einzelnen Impulsdüsen 8 und einem Ringspalt 20. Denkbar ist zudem eine Ausführung, bei welcher übereinander zwei oder mehrere solche Ringspalten 20 angeordnet sind. Dies ist ebenfalls denkbar bei der Ausführung gemäss Fig. 1, in diesem Fall wären somit übereinander mehrere ringförmig angeordnete Strömungskegel 14 angeordnet. Entsprechend können dann zwei oder mehrere Kanäle 12 bzw. 12' vorgesehen sein.In the Fig. 2 shown flushing device 1 'differs from that according to Fig. 1 in that, instead of the plurality of impulse nozzles 8, an annular gap 20 is provided from which the water in the form of a flow cone 14 'flows downwards. The annular gap 20 is also substantially annular and, as can be seen, directed downwards along the inner side 27. Also in this case, the inflowing medium may be water, air or an air-water mixture. The supply of the medium takes place here also via a channel 12 '. Instead of a single circumferential annular gap 20, a plurality of annular gaps may also be present. Also conceivable is a combination of individual impulse nozzles 8 and an annular gap 20. Also conceivable is an embodiment in which two or more such annular gaps 20 are arranged one above the other. This is also conceivable in the embodiment according to Fig. 1 In this case, a plurality of annular flow cones 14 would thus be arranged one above the other. Accordingly, then two or more channels 12 and 12 'may be provided.

Die Spülvorrichtung 1" gemäss Fig. 3 entspricht im Wesentlichen derjenigen gemäss Fig. 1. Die Impulsdüsen 8 sind hier jedoch unmittelbar über der Siphonwasserlinie 24 angeordnet. Die Strömungskegel 14 werden somit der Siphonwasserlinie 24 entlang der Innenseite 27 gebildet und gelangen dann auf der Höhe der Siphonwasserlinie 24 in das Wasser 13 des Siphonbogens 4. Eine entsprechende Anordnung ist bei der Spülvorrichtung 1' gemäss Fig. 2 möglich. Die Impulsdüsen 8 und der Ringspalt 20 können auch unmittelbar unterhalb der Siphonwasserlinie 24 im absteigenden Bereich des Siphonbogens 4 angeordnet sein. Vorzugsweise sind diese aber wesentlich vor dem Scheitelpunkt 25 angeordnet.The flushing device 1 "according to Fig. 3 essentially corresponds to that according to Fig. 1 , However, the impulse nozzles 8 are arranged here directly above the siphon water line 24. The flow cones 14 are thus formed of the siphon water line 24 along the inside 27 and then reach the height of the siphon water line 24 into the water 13 of the siphon bend 4. A corresponding arrangement is in the flushing device 1 'according to Fig. 2 possible. The pulse nozzles 8 and the annular gap 20 can also be arranged directly below the siphon water line 24 in the descending region of the siphon bend 4. Preferably, however, these are arranged substantially in front of the vertex 25.

BEZUGSZEICHENLISTELIST OF REFERENCE NUMBERS

11
Spülvorrichtungflushing
22
Klosettschüsseltoilet bowl
33
Einlassinlet
44
Siphonbogensiphon
55
Abgangsrohroutlet pipe
66
Pfeilarrow
77
Pfeilarrow
88th
Impulsdüsenpulse jet
99
Pfeilarrow
1010
Einlassrohrinlet pipe
1111
Verteilerringdistribution ring
1212
Kanalchannel
1313
Wasserwater
1414
Strömungskegelflow cone
14a14a
Strahlbeam
1616
Wirbelwhirl
1717
Pfeilarrow
1818
Pfeilarrow
1919
Pfeilarrow
2020
Ringspaltannular gap
2121
Auslassoutlet
2222
Innenseiteinside
2323
Innenrauminner space
2424
SiphonwasserlinieSiphonwasserlinie
2525
Scheitelpunktvertex
2626
Sattelpunktsaddle point
2727
Innenseiteinside
2828
Wandstrahlwall jet

Claims (13)

  1. Flushing arrangement for a water closet, having a toilet bowl (2) which has an inlet (3) and an outlet (21) and, between these, means (8, 20) for generating a pulse by means of which water (13) which is present in a U-bend (4) and forms a stench trap can be accelerated, for a flushing operation, in the direction of the outlet (21), wherein said means (8, 20) are arranged in the descending region of the toilet bowl (2), characterized in that said means (8, 20) have a plurality of pulse nozzles (8) and/or at least one annular gap (20) and, during flushing, generate a downwardly directed flow cone (14, 14'), and that said means (8, 20) are arranged in the region of the U-bend water line (24) of the toilet bowl (2).
  2. Flushing arrangement according to claim 1, characterized in that said means (8, 20) are arranged directly above or below the U-bend water line (24).
  3. Flushing arrangement according to claim 1, characterized in that the pulse nozzles (8) are arranged individually on the toilet bowl (2).
  4. Flushing arrangement according to any one of claims 1 to 3, characterized in that said means (8, 20) have at least one channel (12, 12') extending at least partially or completely over the periphery of the inside (27) of the toilet bowl (2).
  5. Flushing arrangement according to any one of claims 1 to 4, characterized in that the annular and downwardly directed flow is generated by water, air or a mixture of water and air.
  6. Flushing arrangement according to any one of claims 1 to 5, characterized in that the inside (27) of the descending region of the toilet bowl (2) narrows downwardly and in that the medium flowing out of said means (8, 20) during flushing flows downwardly along this inside (27) to a saddle point (26) arranged in a lower region of the U-bend (4).
  7. Flushing arrangement according to claim 6, characterized in that, during flushing, a wall jet (28) is formed at said saddle point (26).
  8. Flushing arrangement according to claim 6 or 7, characterized in that the wall jet (28) extends substantially horizontally starting from the saddle point (26).
  9. Flushing arrangement according to claim 7 or 8, characterized in that the wall jet (28) forms at least one rotating vortex (16) and/or a core jet.
  10. Flushing arrangement according to any one of claims 6 to 9, characterized in that the saddle point (26) is located upstream of a vertex (25) of the U-bend (4), as seen in the direction of flow.
  11. Method of operating a flushing arrangement according to any one of claims 1 to 10, characterized in that a flushing is initiated and in that, as a result of this flushing generated here, an annular and downwardly directed flow cone (14, 14') is generated in the descending region of the toilet bowl (2) in the water present in the U-bend (4).
  12. Method according to claim 11, characterized in that the annular and downwardly directed flow is directed towards a saddle point (26) on the inside of the U-bend (4).
  13. Method according to claim 11 or 12, characterized in that a main flushing is additionally initiated, in which water is introduced into the toilet bowl (2) from an upper flushing channel.
EP09405125.7A 2009-03-27 2009-07-24 Flush device for a water closet and method of operating such a device Active EP2233652B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP09405125.7A EP2233652B1 (en) 2009-03-27 2009-07-24 Flush device for a water closet and method of operating such a device
AU2010202596A AU2010202596B2 (en) 2009-03-27 2010-06-22 Flushing arrangement for a WC and method of operating such a flushing arrangement
US12/836,354 US8327472B2 (en) 2009-03-27 2010-07-14 Flushing arrangement for a WC and method of operating such a flushing arrangement
CN201010235065.6A CN101962967B (en) 2009-07-24 2010-07-23 Flushing arrangement for a WC and method of operating such a flushing arrangement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP09405057.2A EP2233651B1 (en) 2009-03-27 2009-03-27 Flush device for a water closet and method of operating such a device
EP09405125.7A EP2233652B1 (en) 2009-03-27 2009-07-24 Flush device for a water closet and method of operating such a device

Publications (2)

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EP2233652A1 EP2233652A1 (en) 2010-09-29
EP2233652B1 true EP2233652B1 (en) 2015-10-07

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EP09405125.7A Active EP2233652B1 (en) 2009-03-27 2009-07-24 Flush device for a water closet and method of operating such a device

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EP (2) EP2233651B1 (en)
CN (1) CN101845846B (en)
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US9951505B2 (en) * 2010-11-16 2018-04-24 Sdp Ip Holdings, Llc Toilet fixture with directional jet flow
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CN105239653B (en) * 2014-07-08 2017-11-24 北京康之维科技有限公司 Closet jet bottom punching method and water-saving stench trap closet
RU2620302C2 (en) * 2015-06-08 2017-05-24 Общество С Ограниченной Ответственностью Научно-Производственный Центр "Экспресс" (Ооо Нпц "Экспресс") Method for cleaning natural toilet
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CN101845846A (en) 2010-09-29
AU2010200694B2 (en) 2016-03-10
AU2010202596A1 (en) 2011-02-10
EP2233652A1 (en) 2010-09-29
US20100242163A1 (en) 2010-09-30
US20110016623A1 (en) 2011-01-27
US8713722B2 (en) 2014-05-06
AU2010200694A1 (en) 2010-10-14
AU2010202596B2 (en) 2016-01-21
EP2233651B1 (en) 2016-12-14
CN101845846B (en) 2015-01-21
US8327472B2 (en) 2012-12-11
EP2233651A1 (en) 2010-09-29

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