EP2871294B1 - Inlet valve for a cistern - Google Patents

Inlet valve for a cistern Download PDF

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Publication number
EP2871294B1
EP2871294B1 EP13192466.4A EP13192466A EP2871294B1 EP 2871294 B1 EP2871294 B1 EP 2871294B1 EP 13192466 A EP13192466 A EP 13192466A EP 2871294 B1 EP2871294 B1 EP 2871294B1
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EP
European Patent Office
Prior art keywords
flow
water
guiding channel
limiting element
elastic element
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EP13192466.4A
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German (de)
French (fr)
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EP2871294A1 (en
Inventor
Martin Rüdisser
Paul Wey
Rolf Weiss
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Geberit International AG
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Geberit International AG
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Priority to PT13192466T priority Critical patent/PT2871294T/en
Priority to ES13192466.4T priority patent/ES2689775T3/en
Priority to EP13192466.4A priority patent/EP2871294B1/en
Publication of EP2871294A1 publication Critical patent/EP2871294A1/en
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Publication of EP2871294B1 publication Critical patent/EP2871294B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
    • E03D1/32—Arrangement of inlet valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/38—Adaptations or arrangements of flushing pipes

Definitions

  • the present invention relates to an inlet fitting for a cistern according to the preamble of claim 1.
  • Inlet fittings are used for filling cisterns of sanitary items, such as toilets or urinals.
  • the filling should be done in a relatively short period of time, so that the flushing is quickly operational again.
  • the noise should be small, so that the user can not perceive the filling acoustically.
  • the invention has for its object to provide an inlet fitting which is as quiet as possible when flow of rinse water.
  • an inlet fitting for filling a cistern comprises a housing, a housing arranged in the water supply channel with an input and an output, and arranged in a water channel channel float-controlled valve, which blocks the water supply channel or during filling free. Further, a flow limiting element is present in the water guide channel, which limits the flow with increasing water pressure so that the flow of water is kept constant by the flow limiting element upon reaching and / or exceeding a predetermined water pressure.
  • the inlet fitting thus includes continue the flow restrictor, which limits the flow accordingly.
  • the flow restrictor is controlled by the water pressure. By limiting the flow at high pressures, the inlet fitting can be operated quieter.
  • the predetermined pressure is in the range of 3 to 7 bar, in particular 4 to 6.
  • the constant flow rate is preferably in the range of 0.1 to 0.2 liters per second.
  • the flow limiting element reduces the cross section of the water guide channel with increasing pressure.
  • the flow-limiting element is preferably designed such that when a maximum pressure is present, a minimal cross-section remains open. Consequently, therefore, limited by the cross-sectional change of the flow. Ensuring a minimum opening, even at high pressures, ensures that the flow restrictor does not act as a fine filter.
  • the flow-limiting element comprises at least one elastic element arranged in the water guide channel, which elastic element is deformed with increasing pressure and due to the deformation reduces the cross-section of the water guide channel in the area of the flow-limiting element.
  • the flow-limiting element comprises a narrowing of the cross-section of the water guide channel narrowing, said said elastic element is seen in the direction of flow of the water before and spaced from the constriction.
  • the distance between the elastic member and the constriction is reduced with increasing pressure, thereby reducing the cross section of the water flow channel for flow reduction.
  • the constriction is provided by at least one opening provided in a wall which projects into or protrudes into the water guide channel.
  • the wall can be an integral part of the housing or be inserted into the water channel.
  • the wall to the elastic element projecting support points or support ribs.
  • These support ribs provide for a minimum distance between the wall and the elastic element, whereby the said minimum cross section can be provided at high pressures.
  • the elastic element is an elastic disc.
  • the disc is deformable in the direction of water flow through the water.
  • the elastic element in particular the said elastic disc, is arranged on a mandrel in the water guide channel, which mandrel extends from the wall.
  • the disc or the elastic element has a corresponding opening.
  • the mandrel and thus also the opening are arranged centrally in the water guide channel.
  • the mandrel extends away from the wall and has a paragraph.
  • the elastic element is thereby pushed onto the mandrel until it strikes the shoulder, the heel so that the distance between the elastic element and wall exactly defined.
  • the assembly of the elastic element can be simplified.
  • the elastic element is arranged on a carrier element inserted into the water guide channel.
  • the carrier element is part of the flow-limiting element and can be easily inserted into the water supply channel.
  • the support member provides said restriction.
  • the carrier element preferably comprises the said wall and the opening.
  • the elastic element has a Shore hardness of greater than 50 Shore or greater than 60 Shore or greater than 70 Shore.
  • the inlet fitting comprises an outlet pipe, through which the rinse water can be dispensed into a cistern and provides the outlet of the water guide channel, wherein the pressure limiting means located in the flow direction in front of the outlet pipe.
  • the water supply channel comprises a nozzle with a nozzle channel, wherein the flow limiting element is part of the nozzle or in the immediate vicinity of the nozzle.
  • the flow-limiting element lies in the direction of flow after the nozzle.
  • the flow limiting element is seen in the direction of flow in front of the float-controlled valve.
  • FIG. 1 a sectional view of an inlet fitting 1 for the filling of a cistern is shown.
  • the inlet fitting 1 comprises a housing 2, a water guide channel 3 arranged in the housing 2 with an inlet 4 and an outlet 5 and a float-controlled valve 6 arranged in the water guide channel 3, which blocks the water guide channel 3 or releases it during filling.
  • the input 4 is in communication with a water supply line, not shown here and the output 5 opens into the cistern.
  • the float controlled valve 6 is with a float coupled. Via the float the valve 6 can be opened or closed according to the water level in the cistern. When the cistern is empty, the valve 6 is open and the valve 6 is closed when the cistern is filled.
  • a flow-limiting element 7 is arranged in the water guide channel 3. With the flow-limiting element 7, the flow within the water guide channel 3 can be controlled or limited.
  • the flow-limiting element 7 limits the flow in the water guide channel 3 such that upon reaching and / or exceeding a predetermined water pressure, the flow through the flow-limiting element 7 is kept constant. Thus, the flow will not continue to increase despite increasing water pressure.
  • the flow-limiting element 7 thus has the function of limiting the flow when a predetermined water pressure is exceeded.
  • the function of the flow limiting element 7 is in the FIG. 5 shown.
  • the curve with the reference symbol K1 shows a characteristic flow curve from inlet fittings of the prior art.
  • the curve K2 shows a flow characteristic in an inventive inlet fitting. From the curve K2 can be seen that upon reaching a predetermined pressure P1, the flow is kept constant. The level of the constant flow is indicated by the reference Q1. This in contrast to known from the prior art inlet fittings, in which, as shown by the curve K1, the flow also increases with increasing pressure.
  • the predetermined pressure P1, from which the flow is kept constant is preferably in the range of 3 to 7 bar, in particular from 4 to 6 bar.
  • the constant flow Q1 is preferably in the range of 0.1 to 0.2 liters per second. Particularly preferred is a flow rate of 0.15 liters per second. Other values are also conceivable depending on the design of the inlet fitting.
  • FIGS. 3 and 4 show a schematic diagram of a flow-limiting element 7.
  • Flow-limiting element 7 and water supply channel 3 are shown schematically displayed.
  • the flow restriction member 7 is shown at a pressure P below the predetermined pressure P1.
  • the pressure P is smaller than the predetermined pressure P1.
  • the flow restricting element 7 stands in its unchanged position in the water supply channel 3. The flow rate is not significantly affected by the flow restricting element 7.
  • the flow restricting element 7 reduces the cross section of the water guide channel 3 with increasing pressure, so that the flow rate remains constant when the predetermined pressure is exceeded.
  • the flow limiting element 7 is designed such that when a maximum pressure is reached, a minimal cross section remains open. The flow-limiting element 7 thus allows the passage of water for each pressure.
  • the flow limiting element 7 has the shape of an elastic element 8.
  • the elastic element 8 is arranged in the water guide channel 3 and is deformed by the increasing water pressure accordingly. As a result of the deformation, the cross-section of the water guide channel 3 in the area of the flow-limiting element 7 is reduced.
  • constriction 9 that narrows the cross-section of the water channel 3.
  • the constriction 9 can be part of the flow-limiting element 7.
  • Said elastic element 8 is seen in the direction of flow F of the water before and spaced from the constriction 9.
  • the distance between the elastic member 8 and the constriction 9 is reduced with increasing pressure, whereby the cross section of the water supply channel 3 for flow reduction in this area is reduced.
  • This narrowing can be particularly in the FIGS. 2 to 4 be well recognized.
  • FIG. 2 The reduction of the cross section in the region of the elastic element 8, which is shown in the deformed state with the dotted line, and the constriction 9 is also shown.
  • the constriction 9 is provided by an opening 10 provided in a wall 11 which protrudes or protrudes into the water guide channel.
  • the constriction 9 may have the shape of a single opening or a plurality of openings in the corresponding wall.
  • the wall 11 is perpendicular to the direction of flow in the water supply channel.
  • the wall 11 may have support points, which are oriented towards the elastic element 8. These support points are not shown in the figures. These support points prevent the elastic element 8 from moving completely towards the wall 11 and completely closing the opening 10.
  • the elastic element 8 can be arranged in various ways in the water supply channel 3.
  • the elastic element 8 is arranged on a mandrel 13.
  • the mandrel 13 extends away from the wall 11 here.
  • the mandrel 13 has a shoulder 12, which serves as a stop for the elastic element 8.
  • the shoulder 12 and thus also the elastic element 8 is spaced from the wall 11 and from the opening 10. This also ensures that the elastic element 8 moves completely towards the wall 11 and the opening 10 completely closes.
  • the elastic element 8 can also be arranged in a carrier element 17 inserted in the water guide channel 3.
  • the support member 17 is in the FIG. 2 shown accordingly.
  • the support member 17 of the said mandrel 13 is arranged.
  • the carrier element 17 provides the said constriction 9 as well as the said wall 11.
  • the carrier element 11 can be inserted into the water guide channel and stands here at an angle to the water guide channel wall 18 at.
  • the elastic element 8 particularly preferably has a Shore hardness of greater than 50 Shore or greater than 60 Shore, in particular greater than 70 Shore. These Shore hardnesses have proven to be particularly advantageous in experiments.
  • the output 5 is followed by an outlet pipe 14 through which the rinse water can be discharged into a cistern.
  • the outlet pipe 14 opens with a corresponding outlet 19 in the cistern.
  • the pressure limiting element 7 is located in the flow direction in front of the outlet pipe 14.
  • the water supply channel 3 comprises a nozzle 15 with a nozzle channel 16.
  • the flow restricting element 7 may be part of the nozzle 15, as shown in the figures.
  • the flow-limiting element 7 can also be in the vicinity, in particular in the immediate vicinity, to the nozzle 15.
  • the flow-limiting element 7 seen in the direction of flow may be spaced from the nozzle 15.
  • the flow-limiting element 7, viewed in the direction of flow F, lies in front of the float-controlled valve 6. This prevents the float-controlled valve 6 from being loaded with the large flow rates above Q1. This further reduces the noise when filling the cistern.
  • the flow restricting element has the advantage that the Flow is automatically limited with increasing water pressure, which makes the inlet set lower noise.

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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)
  • Domestic Plumbing Installations (AREA)
  • Safety Valves (AREA)

Description

TECHNISCHES GEBIETTECHNICAL AREA

Die vorliegende Erfindung betrifft eine Einlaufgarnitur für einen Spülkasten nach dem Oberbegriff von Anspruch 1.The present invention relates to an inlet fitting for a cistern according to the preamble of claim 1.

STAND DER TECHNIKSTATE OF THE ART

Einlaufgarnituren dienen der Befüllung von Spülkästen von Sanitärartikeln, wie Toiletten oder Urinalen. Die Befüllung soll dabei in einer relativ kleinen Zeitdauer erfolgen, so dass die Spülung wieder rasch einsatzfähig ist. Zudem soll die Geräuschbildung klein sein, so dass der Benutzer die Befüllung nicht akustisch wahrnehmen kann.Inlet fittings are used for filling cisterns of sanitary items, such as toilets or urinals. The filling should be done in a relatively short period of time, so that the flushing is quickly operational again. In addition, the noise should be small, so that the user can not perceive the filling acoustically.

Aus der WO 2008/051311 ist eine Einlaufgarnitur bekannt geworden, welche ein Durchflussbegrenzungselement aufweist. Hierfür wird ein Satz von verschiedenen Durchflussbegrenzungselementen bereitgestellt, welche je nach Einbausituation ausgewählt werden können, wobei eine Anpassung des Querschnittes während des Betriebes nicht möglich ist.From the WO 2008/051311 an inlet fitting has become known, which has a flow-limiting element. For this purpose, a set of different flow limiting elements is provided, which can be selected depending on the installation situation, with an adjustment of the cross section during operation is not possible.

Zudem kennt der Sanitärfachmann aus US 2013/0199626 A1 , US 3 409 050 und US 2 960 109 Durchflussbegrenzungselemente für die Verwendung in Armaturen bzw. Rohrleitungen. Diese Durchflussbegrenzungselemente weisen jeweils ein elastisches Element auf, das einen Durchflussquerschnitt in Abhängigkeit des Wasserdrucks verengt und so den Durchfluss bei steigendem Wasserdruck begrenzt.In addition, the sanitary specialist knows US 2013/0199626 A1 . US Pat. No. 3,409,050 and US Pat. No. 2,960,109 Flow restriction elements for use in fittings or pipelines. These flow restricting elements each have an elastic element which narrows a flow cross-section as a function of the water pressure and thus limits the flow rate with increasing water pressure.

DARSTELLUNG DER ERFINDUNGPRESENTATION OF THE INVENTION

Der Erfindung liegt eine Aufgabe zugrunde, eine Einlaufgarnitur anzugeben, welche beim Durchfluss von Spülwasser möglichst geräuscharm ist.The invention has for its object to provide an inlet fitting which is as quiet as possible when flow of rinse water.

Diese Aufgabe löst der Gegenstand von Anspruch 1. Demgemäss umfasst eine Einlaufgarnitur für die Befüllung eines Spülkastens ein Gehäuse, ein im Gehäuse angeordneter Wasserführungskanal mit einem Eingang und einem Ausgang, und ein im Wasserführungskanal angeordnetes schwimmergesteuertes Ventil, welches den Wasserführungskanal sperrt bzw. bei der Befüllung frei gibt. Weiter ist im Wasserführungskanal ein Durchflussbegrenzungselement vorhanden, welches den Durchfluss bei steigendem Wasserdruck so begrenzt, dass der Durchfluss des Wassers durch das Durchflussbegrenzungselement bei Erreichen und/oder Überschreiten eines vorbestimmten Wasserdruckes konstant gehalten wird. Die Einlaufgarnitur umfasst also weiterhin das Durchflussbegrenzungselement, welches den Durchfluss entsprechend begrenzt.Accordingly, an inlet fitting for filling a cistern comprises a housing, a housing arranged in the water supply channel with an input and an output, and arranged in a water channel channel float-controlled valve, which blocks the water supply channel or during filling free. Further, a flow limiting element is present in the water guide channel, which limits the flow with increasing water pressure so that the flow of water is kept constant by the flow limiting element upon reaching and / or exceeding a predetermined water pressure. The inlet fitting thus includes continue the flow restrictor, which limits the flow accordingly.

Das Durchflussbegrenzungselement wird über den Wasserdruck gesteuert. Durch die Begrenzung des Durchflusses bei hohen Drücken kann die Einlaufgarnitur geräuscharmer betrieben werden.The flow restrictor is controlled by the water pressure. By limiting the flow at high pressures, the inlet fitting can be operated quieter.

Vorzugsweise liegt der vorbestimmte Druck im Bereich von 3 bis 7 bar, insbesondere 4 bis 6. Der konstante Durchfluss liegt bevorzugt im Bereich von 0.1 bis 0.2 Liter pro Sekunde. Dabei verkleinert das Durchflussbegrenzungselement den Querschnitt des Wasserführungskanals bei ansteigendem Druck. Das Durchflussbegrenzungselement ist vorzugsweise derart ausgebildet, dass bei Vorliegen eines Maximaldruckes ein minimaler Querschnitt offen bleibt. Folglich wird also durch die Querschnittsveränderung der Durchfluss begrenzt. Durch die Sicherstellung einer minimalen Öffnung auch bei hohen Drücken wird erreicht, dass das Durchflussbegrenzungselement nicht als Feinfilter wirkt.Preferably, the predetermined pressure is in the range of 3 to 7 bar, in particular 4 to 6. The constant flow rate is preferably in the range of 0.1 to 0.2 liters per second. The flow limiting element reduces the cross section of the water guide channel with increasing pressure. The flow-limiting element is preferably designed such that when a maximum pressure is present, a minimal cross-section remains open. Consequently, therefore, limited by the cross-sectional change of the flow. Ensuring a minimum opening, even at high pressures, ensures that the flow restrictor does not act as a fine filter.

Das Durchflussbegrenzungselement umfasst mindestens ein im Wasserführungskanal angeordnetes elastisches Element, welches elastische Element bei ansteigenden Druck verformt wird und durch die Verformung den Querschnitt des Wasserführungskanals im Bereich des Durchflussbegrenzungselements verkleinert.The flow-limiting element comprises at least one elastic element arranged in the water guide channel, which elastic element is deformed with increasing pressure and due to the deformation reduces the cross-section of the water guide channel in the area of the flow-limiting element.

Das Durchflussbegrenzungselement umfasst eine den Querschnitt des Wasserführungskanal verkleinernde Verengung, wobei das besagte elastische Element in Fliessrichtung des Wassers gesehen vor und beabstandet zur Verengung angeordnet ist. Der Abstand zwischen dem elastischen Element und der Verengung wird bei steigendem Druck verkleinert, wodurch der Querschnitt des Wasserführungskanals zur Durchflussreduktion verkleinert wird.The flow-limiting element comprises a narrowing of the cross-section of the water guide channel narrowing, said said elastic element is seen in the direction of flow of the water before and spaced from the constriction. The distance between the elastic member and the constriction is reduced with increasing pressure, thereby reducing the cross section of the water flow channel for flow reduction.

Die Verengung wird durch mindestens eine Öffnung, die in einer Wand, welche in den Wasserführungskanal ein ragt oder hindurch ragt, bereitgestellt. Die Wand kann dabei integraler Bestandteil des Gehäuses sein oder in den Wasserführungskanal eingesetzt sein.The constriction is provided by at least one opening provided in a wall which projects into or protrudes into the water guide channel. The wall can be an integral part of the housing or be inserted into the water channel.

Besonders bevorzugt weist die Wand zum elastischen Element ragende Stützstellen oder Stützrippen auf. Diese Stützrippen sorgen für einen Minimalabstand zwischen Wand und dem elastischen Element, wodurch der besagte minimale Querschnitt bei hohen Drücken bereitstellbar ist.Particularly preferably, the wall to the elastic element projecting support points or support ribs. These support ribs provide for a minimum distance between the wall and the elastic element, whereby the said minimum cross section can be provided at high pressures.

Vorzugsweise ist das elastische Element eine elastische Scheibe. Die Scheibe ist dabei in Fliessrichtung des Wasser durch das Wasser verformbar.Preferably, the elastic element is an elastic disc. The disc is deformable in the direction of water flow through the water.

Das elastische Element, insbesondere die besagte elastische Scheibe, ist auf einem Dorn im Wasserführungskanal angeordnet, welcher Dorn sich von der Wand erstreckt. Hierfür weist die Scheibe bzw. das elastische Element eine entsprechende Öffnung auf. Vorzugsweise sind der Dorn und somit auch die Öffnung mittig im Wasserführungskanal angeordnet. Der Dorn erstreckt sich dabei von der Wand weg und weist einen Absatz auf. Das elastische Element wird dabei auf den Dorn aufgeschoben, bis es am Absatz anschlägt, wobei der Absatz damit die Distanz zwischen elastischem Element und Wand exakt definiert. So kann die Montage des elastischen Elements vereinfacht werden.The elastic element, in particular the said elastic disc, is arranged on a mandrel in the water guide channel, which mandrel extends from the wall. For this purpose, the disc or the elastic element has a corresponding opening. Preferably, the mandrel and thus also the opening are arranged centrally in the water guide channel. The mandrel extends away from the wall and has a paragraph. The elastic element is thereby pushed onto the mandrel until it strikes the shoulder, the heel so that the distance between the elastic element and wall exactly defined. Thus, the assembly of the elastic element can be simplified.

Besonders bevorzugt ist das elastische Element an einem in den Wasserführungskanal eingesetzten Trägerelement angeordnet. Das Trägerelement ist dabei ein Teil des Durchflussbegrenzungselementes und kann einfach in den Wasserführungskanal eingesetzt werden.Particularly preferably, the elastic element is arranged on a carrier element inserted into the water guide channel. The carrier element is part of the flow-limiting element and can be easily inserted into the water supply channel.

Vorzugsweise stellt das Trägerelement die besagte Verengung bereit. Zudem umfasst das Trägerelement vorzugsweise die besagte Wand und die Öffnung.Preferably, the support member provides said restriction. In addition, the carrier element preferably comprises the said wall and the opening.

Vorzugsweise weist das elastische Element eine Shore-Härte von grösser als 50 Shore oder grösser als 60 Shore oder grösser als 70 Shore auf.Preferably, the elastic element has a Shore hardness of greater than 50 Shore or greater than 60 Shore or greater than 70 Shore.

Vorzugsweise umfasst die Einlaufgarnitur ein Auslassrohr, durch welches das Spülwasser in einen Spülkasten abgebbar ist und den Ausgang des Wasserführungskanals bereitstellt, wobei das Druckbegrenzungsmittel in Strömungsrichtung gesehen vor dem Auslassrohr liegt.Preferably, the inlet fitting comprises an outlet pipe, through which the rinse water can be dispensed into a cistern and provides the outlet of the water guide channel, wherein the pressure limiting means located in the flow direction in front of the outlet pipe.

Vorzugsweise umfasst der Wasserführungskanal eine Düse mit einem Düsenkanal, wobei das Durchflussbegrenzungselement Teil der Düse ist oder in unmittelbarer Nähe zur Düse liegt. Besonders bevorzugt liegt das Durchflussbegrenzungselement in Fliessrichtung gesehen nach der Düse.Preferably, the water supply channel comprises a nozzle with a nozzle channel, wherein the flow limiting element is part of the nozzle or in the immediate vicinity of the nozzle. Particularly preferably, the flow-limiting element lies in the direction of flow after the nozzle.

Vorzugsweise liegt das Durchflussbegrenzungselement in Fliessrichtung gesehen vor dem schwimmergesteuerten Ventil.Preferably, the flow limiting element is seen in the direction of flow in front of the float-controlled valve.

Weitere Ausführungsformen sind in den abhängigen Ansprüchen angegeben.Further embodiments are given in the dependent claims.

KURZE BESCHREIBUNG DER ZEICHNUNGENBRIEF DESCRIPTION OF THE DRAWINGS

Bevorzugte Ausführungsformen der Erfindung werden im Folgenden anhand der Zeichnungen beschrieben, die lediglich zur Erläuterung dienen und nicht einschränkend auszulegen sind. In den Zeichnungen zeigen:

Fig. 1
eine Schnittansicht durch ein Füllventil mit einem Durchflussbegrenzungselement;
Fig. 2
eine Detailansicht der Figur 1; und
Fig. 3
eine schematische Detailansicht des Durchflussbegrenzungselementes im unbelasteten Zustand;
Fig. 4
eine schematische Detailansicht des Durchflussbegrenzungselementes im belasteten Zustand; und
Fig. 5
das Durchflussverhalten eines herkömmlichen Füllventils und des Füllventils nach einer der vorhergehenden Figuren.
Preferred embodiments of the invention will be described below with reference to the drawings, which are given by way of illustration only and are not to be interpreted as limiting. In the drawings show:
Fig. 1
a sectional view through a filling valve with a flow-limiting element;
Fig. 2
a detailed view of the FIG. 1 ; and
Fig. 3
a schematic detail view of the flow limiting element in the unloaded state;
Fig. 4
a schematic detail view of the flow limiting element in the loaded state; and
Fig. 5
the flow behavior of a conventional filling valve and the filling valve according to one of the preceding figures.

BESCHREIBUNG BEVORZUGTER AUSFÜHRUNGSFORMENDESCRIPTION OF PREFERRED EMBODIMENTS

In der Figur 1 wird eine Schnittdarstellung einer Einlaufgarnitur 1 für die Befüllung eines Spülkastens gezeigt. Die Einlaufgarnitur 1 umfasst ein Gehäuse 2, ein im Gehäuse 2 angeordneten Wasserführungskanal 3 mit einem Eingang 4 und einem Ausgang 5 sowie ein im Wasserführungskanal 3 angeordnetes schwimmergesteuertes Ventil 6, welches den Wasserführungskanal 3 sperrt beziehungsweise bei der Befüllung freigibt.In the FIG. 1 a sectional view of an inlet fitting 1 for the filling of a cistern is shown. The inlet fitting 1 comprises a housing 2, a water guide channel 3 arranged in the housing 2 with an inlet 4 and an outlet 5 and a float-controlled valve 6 arranged in the water guide channel 3, which blocks the water guide channel 3 or releases it during filling.

Der Eingang 4 steht mit einer hier nicht gezeigten Wasserversorgungsleitung in Verbindung und der Ausgang 5 mündet in den Spülkasten. Dem Ausgang 5 kann sich ein Auslassrohr 14 anschliessen. Das schwimmergesteuerte Ventil 6 ist mit einem Schwimmer gekoppelt. Über den Schwimmer lässt sich das Ventil 6 nach dem Wasserstand im Spülkasten öffnen oder schliessen. Bei leerem Spülkasten ist das Ventil 6 offen und bei befülltem Spülkasten ist das Ventil 6 geschlossen.The input 4 is in communication with a water supply line, not shown here and the output 5 opens into the cistern. The output 5, an outlet pipe 14 can connect. The float controlled valve 6 is with a float coupled. Via the float the valve 6 can be opened or closed according to the water level in the cistern. When the cistern is empty, the valve 6 is open and the valve 6 is closed when the cistern is filled.

Weiter ist im Wasserführungskanal 3 ein Durchflussbegrenzungselement 7 angeordnet. Mit dem Durchflussbegrenzungselement 7 lässt sich der Durchfluss innerhalb des Wasserführungskanals 3 steuern bzw. begrenzen. Das Durchflussbegrenzungselement 7 begrenzt den Durchfluss im Wasserführungskanal 3 derart, dass bei Erreichen und/oder Überschreiten eines vorbestimmten Wasserdruckes, der Durchfluss durch das Durchflussbegrenzungselement 7 konstant gehalten wird. Der Durchfluss wird also trotz steigendem Wasserdruck nicht weiter ansteigen. Das Durchflussbegrenzungselement 7 hat also die Funktion der Durchflussbegrenzung wenn ein vorbestimmter Wasserdruck überschritten wird.Furthermore, a flow-limiting element 7 is arranged in the water guide channel 3. With the flow-limiting element 7, the flow within the water guide channel 3 can be controlled or limited. The flow-limiting element 7 limits the flow in the water guide channel 3 such that upon reaching and / or exceeding a predetermined water pressure, the flow through the flow-limiting element 7 is kept constant. Thus, the flow will not continue to increase despite increasing water pressure. The flow-limiting element 7 thus has the function of limiting the flow when a predetermined water pressure is exceeded.

Die Funktion des Durchflussbegrenzungselementes 7 wird in der Figur 5 gezeigt. Auf der X-Achse ist der im Wasserführungskanal 3 herrschende Druck und auf der Y-Achse ist der Durchfluss abgebildet. Die Kurve mit dem Bezugszeichen K1 zeigt eine charakteristische Durchflusskurve aus Einlaufgarnituren aus dem Stand der Technik. Die Kurve K2 zeigt eine Durchflusscharakteristik bei einer erfindungsgemässen Einlaufgarnitur. Von der Kurve K2 kann erkannt werden, dass bei Erreichen eines vorbestimmten Druckes P1 der Durchfluss konstant gehalten wird. Das Niveau des konstanten Durchflusses wird mit dem Bezugszeichen Q1 angegeben. Dies im Gegensatz zu aus dem Stand der Technik bekannten Einlaufgarnituren, bei welchen, wie mit der Kurve K1 gezeigt, der Durchfluss mit steigendem Druck ebenfalls weiter ansteigt.The function of the flow limiting element 7 is in the FIG. 5 shown. On the X-axis, the pressure prevailing in the water supply channel 3 and the pressure on the Y-axis flow is shown. The curve with the reference symbol K1 shows a characteristic flow curve from inlet fittings of the prior art. The curve K2 shows a flow characteristic in an inventive inlet fitting. From the curve K2 can be seen that upon reaching a predetermined pressure P1, the flow is kept constant. The level of the constant flow is indicated by the reference Q1. This in contrast to known from the prior art inlet fittings, in which, as shown by the curve K1, the flow also increases with increasing pressure.

Der vorbestimmte Druck P1, ab welchem der Durchfluss konstant gehalten wird, liegt vorzugsweise im Bereich von 3 bis 7 bar, insbesondere von 4 bis 6 bar. Der konstante Durchfluss Q1 liegt vorzugsweise im Bereich von 0,1 bis 0,2 Liter pro Sekunde. Besonders bevorzugt ist ein Durchfluss von 0,15 Liter pro Sekunde. Andere Werte sind je nach Ausbildung der Einlaufgarnitur auch denkbar.The predetermined pressure P1, from which the flow is kept constant, is preferably in the range of 3 to 7 bar, in particular from 4 to 6 bar. The constant flow Q1 is preferably in the range of 0.1 to 0.2 liters per second. Particularly preferred is a flow rate of 0.15 liters per second. Other values are also conceivable depending on the design of the inlet fitting.

Die Figuren 3 und 4 zeigen ein Prinzipschema eines Durchflussbegrenzungselementes 7. Durchflussbegrenzungselement 7 und Wasserführungskanal 3 sind dabei schematisch abgebildet.The FIGS. 3 and 4 show a schematic diagram of a flow-limiting element 7. Flow-limiting element 7 and water supply channel 3 are shown schematically displayed.

In der Figur 3 wird das Durchflussbegrenzungselement 7 bei einem Druck P unterhalb des vorbestimmten Druckes P1 gezeigt. Der Druck P ist kleiner als der vorbestimmte Druck P1. Das Durchflussbegrenzungselement 7 steht dabei in seiner unveränderten Lage im Wasserführungskanal 3. Die Durchflussmenge wird durch das Durchflussbegrenzungselement 7 nicht wesentlich beeinflusst.In the FIG. 3 For example, the flow restriction member 7 is shown at a pressure P below the predetermined pressure P1. The pressure P is smaller than the predetermined pressure P1. The flow restricting element 7 stands in its unchanged position in the water supply channel 3. The flow rate is not significantly affected by the flow restricting element 7.

In der Figur 4 wird die Situation bei einem Druck P gezeigt, welcher grösser ist als der vorbestimmte Druck P1. Hier kann gut erkannt werden, dass das Durchflussbegrenzungselement 7 in Fliessrichtung gesehen gegen eine Verengung 9 des Wasserführungskanals 3 gedrückt wird. Der für den Durchfluss relevante Querschnitt wird dabei vor der Verengung 9 durch das Durchflussbegrenzungselement 7 verkleinert, wobei der Durchfluss ebenfalls verkleinert wird. Steigt nun der Druck P weiter an, so wird das Durchflussbegrenzungselement 7 weiter gegen die Verengung 9 gedrückt und der Querschnitt wird weiter verkleinert, was ebenfalls den Durchfluss entsprechend beeinflusst.In the FIG. 4 the situation is shown at a pressure P which is greater than the predetermined pressure P1. Here it can be well recognized that the flow-limiting element 7 is pressed in the direction of flow against a constriction 9 of the water supply channel 3. The relevant for the flow cross-section is reduced before the constriction 9 through the flow restricting element 7, wherein the flow is also reduced. If the pressure P now continues to rise, the flow-limiting element 7 is pressed further against the constriction 9 and the cross-section is further reduced, which likewise influences the flow accordingly.

In allgemeinen Worten gesagt verkleinert das Durchflussbegrenzungselement 7 den Querschnitt des Wasserführungskanals 3 bei ansteigendem Druck, so dass die Durchflussmenge bei Überschreiten des vorbestimmten Druckes konstant bleibt.In general terms, the flow restricting element 7 reduces the cross section of the water guide channel 3 with increasing pressure, so that the flow rate remains constant when the predetermined pressure is exceeded.

Das Durchflussbegrenzungselement 7 ist derart ausgebildet, dass bei Erreichen eines maximalen Druckes ein minimaler Querschnitt offen bleibt. Das Durchflussbegrenzungselement 7 lässt also für jeden Druck den Durchtritt von Wasser zu.The flow limiting element 7 is designed such that when a maximum pressure is reached, a minimal cross section remains open. The flow-limiting element 7 thus allows the passage of water for each pressure.

Von den Figuren 1 bis 4 kann gut erkannt werden, dass das Durchflussbegrenzungselement 7 die Gestalt eines elastischen Elementes 8 aufweist. Das elastische Element 8 ist dabei im Wasserführungskanal 3 angeordnet und wird durch den ansteigenden Wasserdruck entsprechend verformt. Durch die Verformung wird der Querschnitt des Wasserführungskanals 3 im Bereich des Durchflussbegrenzungselementes 7 verkleinert.Of the FIGS. 1 to 4 can be well recognized that the flow limiting element 7 has the shape of an elastic element 8. The elastic element 8 is arranged in the water guide channel 3 and is deformed by the increasing water pressure accordingly. As a result of the deformation, the cross-section of the water guide channel 3 in the area of the flow-limiting element 7 is reduced.

Im Zusammenhang mit der Figur 2 sei weiterhin erwähnt, dass das elastische Element 8 mit der strichpunktierten Linie im verformten Zustand dargestellt wird.In connection with the FIG. 2 It should also be mentioned that the elastic element 8 is shown with the dotted line in the deformed state.

Wie in den Figuren gezeigt wird, liegt in Fliessrichtung F gesehen nach dem Durchflussbegrenzungselement 7 eine den Querschnitt des Wasserkanals 3 verkleinernde Verengung 9. Die Verengung 9 kann Teil des Durchflussbegrenzungselementes 7 sein. Das besagte elastische Element 8 ist dabei in Fliessrichtung F des Wassers gesehen vor und beabstandet zur Verengung 9 angeordnet. Der Abstand zwischen dem elastischen Element 8 und der Verengung 9 wird bei steigendem Druck verkleinert, wodurch der Querschnitt des Wasserführungskanals 3 zur Durchflussreduktion in diesem Bereich verkleinert wird. Diese Verengung kann insbesondere in den Figuren 2 bis 4 gut erkannt werden. In der Figur 2 wird auch die Verkleinerung des Querschnittes im Bereich des elastischen Elementes 8, das im verformten Zustand mit der strichpunktierten Linie gezeigt ist, und der Verengung 9 dargestellt.As shown in the figures, downstream of the flow-limiting element 7, viewed in the flow direction F, there is a constriction 9 that narrows the cross-section of the water channel 3. The constriction 9 can be part of the flow-limiting element 7. Said elastic element 8 is seen in the direction of flow F of the water before and spaced from the constriction 9. The distance between the elastic member 8 and the constriction 9 is reduced with increasing pressure, whereby the cross section of the water supply channel 3 for flow reduction in this area is reduced. This narrowing can be particularly in the FIGS. 2 to 4 be well recognized. In the FIG. 2 The reduction of the cross section in the region of the elastic element 8, which is shown in the deformed state with the dotted line, and the constriction 9 is also shown.

Die Verengung 9 wird durch eine Öffnung 10 bereitgestellt, die in einer Wand 11, welche in den Wasserführungskanal einragt oder hindurchragt, bereitgestellt wird. Die Verengung 9 kann dabei die Gestalt einer einzigen Öffnung aufweisen oder eine Vielzahl von Öffnungen in der entsprechenden Wand. Vorzugsweise steht die Wand 11 rechtwinklig zur Fliessrichtung im Wasserführungskanal.The constriction 9 is provided by an opening 10 provided in a wall 11 which protrudes or protrudes into the water guide channel. The constriction 9 may have the shape of a single opening or a plurality of openings in the corresponding wall. Preferably, the wall 11 is perpendicular to the direction of flow in the water supply channel.

Die Wand 11 kann Stützstellen aufweisen, welche zum elastischen Element 8 hin orientiert sind. Diese Stützstellen werden in den Figuren aber nicht dargestellt. Diese Stützstellen verhindern, dass sich das elastische Element 8 vollständig zur Wand 11 hin bewegt und die Öffnung 10 vollständig verschliesst.The wall 11 may have support points, which are oriented towards the elastic element 8. These support points are not shown in the figures. These support points prevent the elastic element 8 from moving completely towards the wall 11 and completely closing the opening 10.

Das elastische Element 8 kann verschiedenartig im Wasserführungskanal 3 angeordnet sein. In der Figur 2 wird gezeigt, dass das elastische Element 8 auf einem Dorn 13 angeordnet ist. Der Dorn 13 erstreckt sich hier von der Wand 11 weg. Der Dorn 13 weist einen Absatz 12 auf, welcher als Anschlag für das elastischen Element 8 dient. Der Absatz 12 und somit auch das elastische Element 8 liegt beabstandet von der Wand 11 und von der Öffnung 10. Hierdurch wird ebenfalls sichergestellt, dass das elastische Element 8 sich vollständig zur Wand 11 hin bewegt und die Öffnung 10 vollständig verschliesst.The elastic element 8 can be arranged in various ways in the water supply channel 3. In the FIG. 2 it is shown that the elastic element 8 is arranged on a mandrel 13. The mandrel 13 extends away from the wall 11 here. The mandrel 13 has a shoulder 12, which serves as a stop for the elastic element 8. The shoulder 12 and thus also the elastic element 8 is spaced from the wall 11 and from the opening 10. This also ensures that the elastic element 8 moves completely towards the wall 11 and the opening 10 completely closes.

Das elastische Element 8 kann auch in einem in den Wasserführungskanal 3 eingesetzten Trägerelement 17 angeordnet sein. Das Trägerelement 17 wird in der Figur 2 entsprechend gezeigt. In dieser Ausführungsform ist am Trägerelement 17 der besagte Dorn 13 angeordnet. Das Trägerelement 17 stellt dabei zugleich die besagte Verengung 9 sowie die besagte Wand 11 bereit. Das Trägerelement 11 kann in den Wasserführungskanal eingesetzt werden und steht hier an einer winklig zum Wasserführungskanal stehenden Wand 18 an.The elastic element 8 can also be arranged in a carrier element 17 inserted in the water guide channel 3. The support member 17 is in the FIG. 2 shown accordingly. In this embodiment, the support member 17 of the said mandrel 13 is arranged. At the same time, the carrier element 17 provides the said constriction 9 as well as the said wall 11. The carrier element 11 can be inserted into the water guide channel and stands here at an angle to the water guide channel wall 18 at.

Besonders bevorzugt weist das elastische Element 8 eine Shore-Härte von grösser als 50 Shore oder grösser als 60 Shore insbesondere von grösser als 70 Shore auf. Diese Shore-Härten haben sich in Versuchen als besonders vorteilhaft erwiesen.The elastic element 8 particularly preferably has a Shore hardness of greater than 50 Shore or greater than 60 Shore, in particular greater than 70 Shore. These Shore hardnesses have proven to be particularly advantageous in experiments.

In der Figur 1 kann weiter erkannt werden, dass sich dem Ausgang 5 ein Auslassrohr 14 anschliesst, durch welches das Spülwasser in einen Spülkasten abgebbar ist. Das Auslassrohr 14 mündet dabei mit einem entsprechenden Ausgang 19 in den Spülkasten. Das Druckbegrenzungselement 7 liegt in Strömungsrichtung gesehen vor dem Auslassrohr 14.In the FIG. 1 can be further recognized that the output 5 is followed by an outlet pipe 14 through which the rinse water can be discharged into a cistern. The outlet pipe 14 opens with a corresponding outlet 19 in the cistern. The pressure limiting element 7 is located in the flow direction in front of the outlet pipe 14.

Ebenfalls in der Figur 1 wird gezeigt, dass vom Eingang 4 her gesehen der Wasserführungskanal 3 eine Düse 15 mit einem Düsenkanal 16 umfasst. Das Durchflussbegrenzungselement 7 kann dabei Teil der Düse 15 sein, so wie dies in den Figuren gezeigt ist. Alternativ kann das Durchflussbegrenzungselement 7 auch in der Nähe, insbesondere in unmittelbarer Nähe, zur Düse 15 liegen. Zudem kann in einer anderen Ausführungsform das Durchflussbegrenzungselement 7 in Fliessrichtung gesehen beabstandet zur Düse 15 liegen.Also in the FIG. 1 it is shown that, as seen from the entrance 4, the water supply channel 3 comprises a nozzle 15 with a nozzle channel 16. The flow restricting element 7 may be part of the nozzle 15, as shown in the figures. Alternatively, the flow-limiting element 7 can also be in the vicinity, in particular in the immediate vicinity, to the nozzle 15. In addition, in another embodiment, the flow-limiting element 7 seen in the direction of flow may be spaced from the nozzle 15.

Besonders bevorzugt ist es aber, wenn das Durchflussbegrenzungselement 7 in Fliessrichtung F gesehen vor dem schwimmergesteurten Ventil 6 liegt. Hierdurch wird verhindert, dass das schwimmergesteurte Ventil 6 mit den grossen Durchflüssen oberhalb von Q1 belastet wird. Dies senkt die Geräusche bei der Befüllung des Spülkastens weiter.However, it is particularly preferred if the flow-limiting element 7, viewed in the direction of flow F, lies in front of the float-controlled valve 6. This prevents the float-controlled valve 6 from being loaded with the large flow rates above Q1. This further reduces the noise when filling the cistern.

Zusammenfassend weist das Durchflussbegrenzungselement den Vorteil auf, dass der Durchfluss bei steigendem Wasserdruck automatisch limitiert wird, was die Einlaufgarnitur geräuscharmer macht.In summary, the flow restricting element has the advantage that the Flow is automatically limited with increasing water pressure, which makes the inlet set lower noise.

BEZUGSZEICHENLISTELIST OF REFERENCE NUMBERS

11
Einlaufgarniturinlet fitting
22
Gehäusecasing
33
WasserführungskanalWater duct
44
Eingangentrance
55
Ausgangoutput
66
schwimmergesteuertes Ventilfloat controlled valve
77
DurchflussbegrenzungselementFlow limiting element
88th
elastisches Elementelastic element
99
Verengungnarrowing
1010
Öffnungopening
1111
Wandwall
1212
Absatzparagraph
1313
Dornmandrel
1414
Auslassrohroutlet pipe
1515
Düsejet
1616
Düsenkanalnozzle channel
1717
Trägerelementsupport element
1818
Wandwall
1919
Ausgangoutput

Claims (10)

  1. An inlet fitting (1) for the filling of a cistern comprising
    a housing (2),
    a water-guiding channel (3) arranged in the housing (2) with an inlet (4) and an outlet (5), and
    a float-controlled valve (6) arranged in the water-guiding channel (3), which locks the water-guiding channel (3) and unlocks the water-guiding channel (3) during the filling, respectively,
    wherein a flow-limiting element (7) is comprised in the water-guiding channel (3),
    characterized in that the flow-limiting element (7) limits the flow rate at increasing water pressure such, that the flow of the water through the flow-limiting element (7) is kept constant upon reaching and/or exceeding a predetermined water pressure (P1),
    wherein the flow-limiting element (7) comprises at least one elastic element (8) arranged in the water-guiding channel (3), which elastic element (8) is deformed under increasing pressure and, due to the deformation, reduces the cross-section of the water-guiding channel (3) in the region of the flow-limiting element (7),
    wherein the flow-limiting element (7) further comprises a constriction (9), which reduces the cross-section of the water-guiding channel (3), wherein the said elastic element (8) is arranged before and at a distance to the constriction (9) when viewed along the flow direction (F) of the water, wherein the distance between the elastic element (8) and the constriction (9) reduces as the pressure increases, as a result of which the cross-section of the water-guiding channel (3) is reduced for a flow reduction, which constriction is provided by at least one opening (10) in a wall (11), which protrudes into or through the water-guiding channel (3), and
    wherein a mandrel (13) extends from the wall (11) and comprises a shoulder (12), wherein the elastic element (8) is mounted on the mandrel (13) in the water-guiding channel (3) such, that the shoulder (12) serves the purpose of an abutment for the elastic element (8), wherein the shoulder (12) and therefore the elastic element (8) are located at a distance from the wall (11) and from the at least one opening (10).
  2. The inlet fitting (1) according to claim 1, characterized in that the predetermined pressure (P1) is in the range of 3 to 7 bar, in particular 4 to 6, and/or that the constant flow (Q1) is in the range of 0.1 to 0.2 liter per second.
  3. The inlet fitting (1) according to claim 1 or 2, characterized in that the flow-limiting element (7) reduces the cross-section of the water-guiding channel (3) as the pressure increases, wherein the flow-limiting element (7) is preferably designed such, that a minimum cross-section remains open when a maximum pressure is present.
  4. The inlet fitting (1) according to any one of the preceding claims, characterized in that the wall (11) comprises support points projecting to the elastic element (8).
  5. The inlet fitting (1) according to any one of the preceding claims, characterized in that the elastic element (8) is an elastic disc.
  6. The inlet fitting (1) according to any one of the preceding claims, characterized in that the mandrel is arranged with the elastic element (8) on a support element (17) placed into the water-guiding channel (3).
  7. The inlet fitting (1) according to claim 6, characterized in that the support element (17) provides the said constriction (9) and comprises the said wall (11) and the opening (10).
  8. The inlet fitting (1) according to any one of the preceding claims, characterized in that the elastic element (8) has a shore-hardness of greater than 50 shore or greater than 60 shore or greater than 70 shore.
  9. The inlet fitting (1) according to any one of the preceding claims, characterized in that the inlet fitting (1) comprises an outlet pipe (14), through which rinsing water can be dispensed into a cistern, wherein the pressure limiting element (7) is arranged upstream of the outlet pipe (14) when viewed in the direction of flow.
  10. The inlet fitting (1) according to any one of the preceding claims, characterized in that the water-guiding channel (3) comprises a nozzle (15) with a nozzle channel (16) when viewed from the inlet, wherein the flow-limiting element (7) is part of the nozzle (15) or is arranged in immediate proximity to the nozzle (15) and/or wherein the flow-limiting element (7) is arranged upstream of the nozzle (15) when viewed in the direction of flow and/or the flow-limiting element (7) is arranged downstream of the float-controlled valve (6) when viewed along the direction of flow.
EP13192466.4A 2013-11-12 2013-11-12 Inlet valve for a cistern Active EP2871294B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PT13192466T PT2871294T (en) 2013-11-12 2013-11-12 Inlet valve for a cistern
ES13192466.4T ES2689775T3 (en) 2013-11-12 2013-11-12 Inlet valve for a cistern
EP13192466.4A EP2871294B1 (en) 2013-11-12 2013-11-12 Inlet valve for a cistern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13192466.4A EP2871294B1 (en) 2013-11-12 2013-11-12 Inlet valve for a cistern

Publications (2)

Publication Number Publication Date
EP2871294A1 EP2871294A1 (en) 2015-05-13
EP2871294B1 true EP2871294B1 (en) 2018-08-08

Family

ID=49582583

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13192466.4A Active EP2871294B1 (en) 2013-11-12 2013-11-12 Inlet valve for a cistern

Country Status (3)

Country Link
EP (1) EP2871294B1 (en)
ES (1) ES2689775T3 (en)
PT (1) PT2871294T (en)

Families Citing this family (4)

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Publication number Priority date Publication date Assignee Title
CN105587907B (en) * 2015-12-10 2018-09-28 厦门康谱卫浴科技有限公司 A kind of Quick Release inlet valve of resistant easy cleaning
EP3736388B1 (en) 2019-05-09 2023-11-22 TECE GmbH Filling valve with contamination protection
EP4116511A1 (en) 2021-07-09 2023-01-11 Geberit International AG Filling valve
EP4116512A1 (en) 2021-07-09 2023-01-11 Geberit International AG Filling valve

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2960109A (en) * 1957-01-07 1960-11-15 Gen Controls Co Flow regulator
US3409050A (en) * 1965-10-12 1968-11-05 Harry Swartz Flow restrictor
FR2865749B1 (en) * 2004-01-30 2008-02-15 Sanitaire Accessoires Services SILENT FLOW REDUCER FOR FLOAT VALVE
US7950412B2 (en) * 2006-10-25 2011-05-31 Fluidmaster, Inc. Non-removable refill restrictor apparatus
US8714201B2 (en) * 2012-02-07 2014-05-06 Water Boger Hardware (Shenzhen) Co., Ltd. Water-saving device structure

Non-Patent Citations (1)

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Title
None *

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Publication number Publication date
EP2871294A1 (en) 2015-05-13
PT2871294T (en) 2018-10-24
ES2689775T3 (en) 2018-11-15

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