EP1738677A2 - Dishwasher with steam generator and method of its operation - Google Patents

Dishwasher with steam generator and method of its operation Download PDF

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Publication number
EP1738677A2
EP1738677A2 EP06012938A EP06012938A EP1738677A2 EP 1738677 A2 EP1738677 A2 EP 1738677A2 EP 06012938 A EP06012938 A EP 06012938A EP 06012938 A EP06012938 A EP 06012938A EP 1738677 A2 EP1738677 A2 EP 1738677A2
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EP
European Patent Office
Prior art keywords
dishes
water
dishwasher
steam
sump
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Granted
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EP06012938A
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German (de)
French (fr)
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EP1738677A3 (en
EP1738677B1 (en
Inventor
Fredy Betschart
Ingo Gau
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V-Zug AG
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V-Zug AG
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Application filed by V-Zug AG filed Critical V-Zug AG
Priority to EP06012938A priority Critical patent/EP1738677B1/en
Priority to DE502006001265T priority patent/DE502006001265D1/en
Priority to PL06012938T priority patent/PL1738677T3/en
Publication of EP1738677A2 publication Critical patent/EP1738677A2/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4234—Steam generating arrangements
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps
    • A47L15/0005—Rinsing phases, e.g. pre-rinsing, intermediate rinsing, final rinsing
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps
    • A47L15/0015—Washing processes, i.e. machine working principles characterised by phases or operational steps other treatment phases, e.g. steam or sterilizing phase
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4285—Water-heater arrangements
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2601/00—Washing methods characterised by the use of a particular treatment
    • A47L2601/04—Steam
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2601/00—Washing methods characterised by the use of a particular treatment
    • A47L2601/06—Electrolysed water

Definitions

  • the invention relates to a dishwasher with steam generator and a method for its operation.
  • the cleaning process normally goes through four phases.
  • a pre-rinse phase the dishes are usually wetted without the addition of detergent.
  • detergent is added to the water.
  • a final rinse phase the dishes are prepared for spotless drying by rinsing with clean, hot water, with the rinse aid added to the water. Then follows a drying phase in which the heated dishes are dried.
  • the object is to provide a dishwasher with better cleaning effect and good energy efficiency.
  • a steam generator is provided, with which the dishes can be acted upon in the rinse phase of steam.
  • the water condensing directly on the dishes has virtually no impurities, so that it dries without residue.
  • the condensation process makes it possible to supply the dishes with energy for the subsequent drying in an energetically efficient manner.
  • the water is heated in the sump of the dishwasher and / or in the piping between the sump and the spray means of the dishwasher.
  • This is simple in terms of apparatus.
  • leaves Use a corresponding heating also for heating the water in the remaining cleaning phases.
  • the pump of the dishwasher is operated in at least part of the rinse phase with reduced flow rate at which the water exiting from the spraying water does not act on the dishes, but flows directly through the tub to the sump.
  • the water surface and thus the heat transfer and the steam discharge are increased.
  • overheating of the steam generator is prevented.
  • rinse aid can be applied to the dishes, which promotes drying without visible residues.
  • FIG 1. shows a schematic section through a possible embodiment of the dishwasher.
  • the dishwasher has a housing 1, in which a tub 2 is arranged for receiving the dishes to be cleaned.
  • a front door 3 can be opened.
  • two harness bodies 4a, 4b are provided which define a dish receiving area.
  • a lower spray arm 5 is provided between the two baskets 4a, 4b, an upper spray arm 6, and above the upper dish rack, an auxiliary nozzle 7.
  • the two Spray arms 5, 6 and the auxiliary nozzle 7 form the spraying means, with which water can be introduced into the tub 2.
  • a sump 8 is provided at the bottom of the tub 2. From this, the water passes via a first line section 9 to a pump 10, from which it is conveyed via further line sections 11, 12 back to the spraying means. Further, the dishwasher still has suitable means for supplying fresh water and for discharging dirty water (not shown).
  • a heater 13 This forms the steam generator discussed below and can also be used to heat the water in the pre-rinse phase and the main rinse phase.
  • the heater 13 may, at least partially, also be arranged in the sump 8 and / or on the pump 10.
  • the processes in the dishwasher are controlled by a symbolically illustrated controller 14, which can be operated in a known manner by the user.
  • a water level detection e.g. In the form of a conductivity, pressure or turbidity measurement, it is possible to monitor the level in the sump and, if necessary, trigger the supply of fresh water.
  • the heater 13 and / or the pump 10 can be controlled clocked.
  • a temperature sensor is preferably provided in the water in the region of the heater 13, the signal of which is monitored by the controller 14.
  • an active locking of the door can be done, with which the door can be locked during at least part of the rinse phase to protect the user when exiting the door from escaping hot steam.
  • the door 3 may be provided with a suitable locking.
  • the user can be made aware of the vapor with suitable means of indication.
  • Pure steam may be able to attack certain dishes (knife blades, glass).
  • at least one corrosion inhibitor can be added to the water. It is also conceivable to provide a sacrificial anode in electrical or electrolytic contact with the dishes, e.g. in the area of the cutlery basket.
  • the steaming of the dishes described here can either be integrated in the process flow with each program or programs that are particularly suitable for it (eg glass program), or actively selected and deselected by the user via the control panel of the device (via a button or in the adjustment mode).

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  • Washing And Drying Of Tableware (AREA)

Abstract

The dishwasher has a tub (2) for accommodating dishes to be cleaned, and a steam generator (13) for applying steam in the tub. A controller (14) cleans the dishes in a main washing phase with cleaning medium, and sets up the dishes for an unstained drying in a clear washing phase. The controller is designed such that the dishes are charged with the steam from the steam generator in the clear washing phase, so that the dishes are clearly washed by water condensed from the steam. An independent claim is also included for a method of operating a dishwasher.

Description

Die Erfindung betrifft einen Geschirrspüler mit Dampfgenerator und ein Verfahren zu dessen Betrieb.The invention relates to a dishwasher with steam generator and a method for its operation.

In konventionellen Geschirrspülern durchläuft der Reinigungsvorgang normalerweise vier Phasen. In einer Vorspülphase wird das Geschirr in der Regel ohne Zugabe von Reinigungsmittel benetzt. In einer Hauptspülphase wird dem Wasser Reinigungsmittel zugegeben. In einer Klarspülphase wird das Geschirr auf eine fleckenlose Trocknung vorbereitet, indem es mit sauberem, heissem Wasser gespült wird, wobei dem Wasser ein Klarspülmittel beigegeben sein kann. Sodann folgt eine Trocknungsphase, in welcher das aufgeheizte Geschirr trocknet.In conventional dishwashers, the cleaning process normally goes through four phases. In a pre-rinse phase, the dishes are usually wetted without the addition of detergent. In a main rinse phase, detergent is added to the water. In a final rinse phase, the dishes are prepared for spotless drying by rinsing with clean, hot water, with the rinse aid added to the water. Then follows a drying phase in which the heated dishes are dried.

Die Verwendung von Dampf zur Reinigung von Geschirr in Geschirrspülern ist bekannt. DE 29 00 954 beschreibt die Verwendung von Dampf zwischen Vorspül- und Hauptspülphase um den Reinigungseffekt zu verbessern.The use of steam to clean dishes in dishwashers is known. DE 29 00 954 describes the use of steam between pre-rinse and main rinse phases to enhance the cleaning effect.

Es stellt sich die Aufgabe, einen Geschirrspüler mit besserer Reinigungswirkung und guter Energieeffizienz bereitzustellen.The object is to provide a dishwasher with better cleaning effect and good energy efficiency.

Diese Aufgabe wird vom Geschirrspüler bzw. dem Verfahren gemäss den unabhängigen Ansprüchen erfüllt.This object is achieved by the dishwasher or the method according to the independent claims.

Demgemäss ist ein Dampfgenerator vorgesehen, mit welchem das Geschirr in der Klarspülphase von Dampf beaufschlagt werden kann. Das unmittelbar auf dem Geschirr kondensierende Wasser weist praktisch keine Verunreinigungen auf, so dass es rückstandsfrei trocknet. Ausserdem erlaubt es der Kondensationsprozess, dem Geschirr in energetisch effizienter Weise Wärme für die anschliessende Trocknung zuzuführen.Accordingly, a steam generator is provided, with which the dishes can be acted upon in the rinse phase of steam. The water condensing directly on the dishes has virtually no impurities, so that it dries without residue. In addition, the condensation process makes it possible to supply the dishes with energy for the subsequent drying in an energetically efficient manner.

Vorzugsweise wird zur Dampferzeugung das Wasser im Sumpf des Geschirrspülers und/oder im Leitungssystem zwischen dem Sumpf und den Sprühmitteln des Geschirrspülers erhitzt. Dies ist apparativ einfach. Zudem lässt sich eine entsprechende Heizung auch zum Heizen des Wassers in den übrigen Reinigungsphasen verwenden.Preferably, to generate steam, the water is heated in the sump of the dishwasher and / or in the piping between the sump and the spray means of the dishwasher. This is simple in terms of apparatus. In addition, leaves Use a corresponding heating also for heating the water in the remaining cleaning phases.

In diesem Fall kann es zu einer direkten Dampfabgabe aus dem Sumpf in den Bottich kommen. Vorzugsweise wird die Pumpe des Geschirrspülers in mindestens einem Teil der Klarspülphase mit reduzierter Förderleistung betrieben, bei welcher das aus den Sprühmitteln austretende Wasser das Geschirr nicht beaufschlägt, sondern direkt durch den Bottich zum Sumpf abfliesst. Dadurch werden die Wasseroberfläche und damit der Wärmeübergang bzw. der Dampfaustrag erhöht. Gleichzeitig wird ein Überhitzen des Dampfgenerators verhindert.In this case, there may be a direct release of steam from the sump into the tub. Preferably, the pump of the dishwasher is operated in at least part of the rinse phase with reduced flow rate at which the water exiting from the spraying water does not act on the dishes, but flows directly through the tub to the sump. As a result, the water surface and thus the heat transfer and the steam discharge are increased. At the same time overheating of the steam generator is prevented.

In einer weiteren bevorzugten Ausführung wird

  • in einem ersten Teil der Klarspülphase bzw. in einer Zwischenspülphase Wasser mit Klarspüler auf das Geschirr gesprüht und
  • in einem zweiten Teil der Klarspülphase kein Wasser auf das Geschirr gesprüht, aber das Geschirr mit Dampf beaufschlagt.
In a further preferred embodiment is
  • in a first part of the final rinse phase or in an intermediate rinse phase sprayed water with rinse aid on the dishes and
  • In a second part of the rinse phase, no water is sprayed on the dishes, but the dishes are steamed.

Auf diese Weise kann Klarspüler auf das Geschirr aufgebracht werden, welcher ein Trocknen ohne sichtbare Rückstände fördert.In this way, rinse aid can be applied to the dishes, which promotes drying without visible residues.

Weitere bevorzugte Ausführungen ergeben sich aus den abhängigen Ansprüchen sowie aus der nun folgenden Beschreibung anhand der Figur 1. Diese Figur zeigt einen schematischen Schnitt durch eine mögliche Ausführung des Geschirrspülers.Further preferred embodiments will become apparent from the dependent claims and from the following description with reference to FIG 1. This figure shows a schematic section through a possible embodiment of the dishwasher.

Der Geschirrspüler besitzt ein Gehäuse 1, in welchem ein Bottich 2 zur Aufnahme des zu reinigenden Geschirrs angeordnet ist. Zum Beschicken des Bottichs 2 kann eine Fronttüre 3 geöffnet werden. Im Bottich 2 sind z.B. zwei Geschirrkörper 4a, 4b vorgesehen, die einen Geschirraufnahmebereich definieren.The dishwasher has a housing 1, in which a tub 2 is arranged for receiving the dishes to be cleaned. For loading the tub 2, a front door 3 can be opened. In the tub 2 are e.g. two harness bodies 4a, 4b are provided which define a dish receiving area.

Unterhalb des Geschirraufnahmebereichs ist ein unterer Sprüharm 5 vorgesehen, zwischen den beiden Geschirrkörben 4a, 4b ein oberer Sprüharm 6, und oberhalb des oberen Geschirrkorbs eine Hilfsdüse 7. Die beiden Sprüharme 5, 6 und die Hilfsdüse 7 bilden die Sprühmittel, mit denen Wasser in den Bottich 2 eingebracht werden kann.Below the dish receiving area, a lower spray arm 5 is provided between the two baskets 4a, 4b, an upper spray arm 6, and above the upper dish rack, an auxiliary nozzle 7. The two Spray arms 5, 6 and the auxiliary nozzle 7 form the spraying means, with which water can be introduced into the tub 2.

Zum Sammeln des abfliessenden Wassers ist am Boden des Bottichs 2 ein Sumpf 8 vorgesehen. Von diesem gelangt das Wasser über einen ersten Leitungsabschnitt 9 zu einer Pumpe 10, von welcher es über weitere Leitungsabschnitte 11, 12 zurück zu den Sprühmitteln gefördert wird. Weiter besitzt der Geschirrspüler noch geeignete Mittel zum Zuführen von Frischwasser und zum Wegführen von Schmutzwasser (nicht gezeigt).To collect the effluent water, a sump 8 is provided at the bottom of the tub 2. From this, the water passes via a first line section 9 to a pump 10, from which it is conveyed via further line sections 11, 12 back to the spraying means. Further, the dishwasher still has suitable means for supplying fresh water and for discharging dirty water (not shown).

Am ersten Leitungsabschnitt 9 zwischen dem Sumpf 8 und der Pumpe 10 ist symbolisch eine Heizung 13 dargestellt. Diese bildet den im Folgenden diskutierten Dampfgenerator und kann auch dazu verwendet werden, das Wasser in der Vorspülphase und der Hauptspülphase zu erhitzen. Die Heizung 13 kann, mindestens teilweise, auch im Sumpf 8 und/oder an der Pumpe 10 angeordnet sein.At the first line section 9 between the sump 8 and the pump 10 is symbolically shown a heater 13. This forms the steam generator discussed below and can also be used to heat the water in the pre-rinse phase and the main rinse phase. The heater 13 may, at least partially, also be arranged in the sump 8 and / or on the pump 10.

Die Abläufe im Geschirrspüler werden von einer symbolisch dargestellten Steuerung 14 gesteuert, welche in bekannter Weise vom Benutzer bedient werden kann.The processes in the dishwasher are controlled by a symbolically illustrated controller 14, which can be operated in a known manner by the user.

Die Steuerung 14 erlaubt es dem Benutzer, ein Reinigungsprogramm zu wählen, bei welchem in der Klarspülphase das Geschirr in der oben erwähnten Weise mit Dampf beaufschlagt wird. In diesem Fall sieht der Reinigungsvorgang wie folgt aus:

  1. 1) Zuerst wird das Geschirr vorgespült, indem das Geschirr aus den Sprühmitteln 5, 6, 7 mit Wasser beaufschlagt wird. Hierbei kann die Heizung 13 dazu verwendet werden, dass Wasser zu erwärmen.
  2. 2) In einer Hauptspülphase gibt die Steuerung 14 dem Wasser in bekannter Weise über einen Reinigungsmittelspender Reinigungsmittel zu. Das Wasser wird weiterhin mit den Sprühmitteln 5, 6, 7 direkt auf das Geschirr gesprüht und mit der Heizung 13 bedarfsweise erwärmt. Am Ende der Hauptspülphase wird das verschmutzte Wasser abgepumpt.
  3. 3) An die Hauptspülphase schliesst eine Zwischenspül- und Klarspülphase an. In einer bevorzugten Ausführung der Erfindung sind hierbei verschiedene Varianten denkbar:
    • Variante I: In der Zwischenspülphase wird das Geschirr mit frischen Wasser gespült, um Schmutzreste aus der Reinigungsphase zu entfernen. Die Steuerung 14 betreibt dabei die Pumpe 10 mit voller Förderleistung und das Wasser wird durch alle Sprühmittel 5, 6, 7 direkt auf das Geschirr aufgebracht. Gleichzeitig betätigt die Steuerung 14 eine an sich bekannte Zugabevorrichtung für Klarspüler. Dadurch wird dem Wasser, welches in das System eingeführt wird, Klarspüler zugegeben, der dessen Oberflächenspannung verringert. In dieser Variante wird das Wasser in der Zwischenspülphase vorzugsweise nicht geheizt. Am Schluss der Zwischenspülphase wird das Wasser bis auf das Verdampfungsniveau abgepumpt.
    • Variante II: Es findet wie bei Variante I eine Zwischenspülphase statt, jedoch ohne die Zugabe von Klarspüler, und dann wird das Wasser vollständig abgepumpt. Nun wird nochmals frisches Wasser zugegeben, welchem Klarspüler zugemischt wird. Das Wasser wird bei voller Förderleistung der Pumpe 10 auf das Geschirr aufgebracht. Dabei kann in einer Variante IIa das Wasser auf 50°C auf geheizt werden, wodurch eine erste Erwärmung des Geschirrs für die folgende Trocknungsphase möglich ist und dadurch das Geschirr geschont werden kann. Alternativ wird das Wasser in einer Variante IIb nicht aufgeheizt und anschliessend auf das Verdampfungsniveau abgepumpt.
    • Variante I ist vorzuziehen, wenn das Geschirr wenig verschmutzt ist oder wenn z.B. mittels eines Trübungssensors festgestellt wird, dass das Zwischenspülwasser ausreichend sauber ist, ansonsten wird Variante II gewählt.
  4. 4) Im folgenden Teil der Klarspülphase wird das Prozesswasser zuerst bis auf ein vorgegebenes Dampferzeugungsniveau abgepumpt, soweit dies noch nicht geschehen ist. Nun wird das Wasser mit der Heizung 13 auf mindestens 75 °C erwärmt, vorzugsweise auf mindestens 85 °C. Gleichzeitig betreibt die Steuerung 14 die Pumpe 10 mit reduzierter Förderleistung, bei welcher das Wasser derart aus den Sprühmitteln 5, 6, 7 austritt, dass es ohne Beaufschlagung des Geschirrs durch den Bottich 2 zum Sumpf 8 abfliesst. In der gezeigten Ausführung ist die reduzierte Förderleistung der Pumpe 10 z.B. so gering, dass Wasser nur aus den Düsen des unteren Sprüharms 5 austritt, nicht aber aus dem oberen Sprüharm 6 oder der Düse 7. Zudem ist die Austrittsgeschwindigkeit so gering, dass das Wasser nicht bis zum Geschirraufnahmebereich spritzt, sondern vom unteren Sprüharm 5 direkt auf den Boden des Bottichs tropft und von dort in den Sumpf 8 abfliesst. (Denkbar ist auch die Verwendung einer noch geringeren Förderleistung, bei welcher gar kein Wasser aus den Spräharmen austritt, aber die Pumpe im Bereich der Heizung 13 eine gewisse Strömung erzeugt.) Aus dem erhitzten Wasser tritt Dampf in den Bottich 2, welcher am (kühleren) Geschirr kondensiert und dieses auf eine Temperatur von ca. 60 bis 70 °C aufheizt. Das kondensierte Wasser bildet Tropfen, die am Geschirr ablaufen und allfällige Restsalze, die auf dem Geschirr verblieben sind, verdünnen.
  5. 5) An die Klarspülphase schliesst eine Trocknungsphase an, in welcher dem Bottich 2 in geeigneter Weise Wasser entzogen wird. Dabei trocknet das Geschirr.
The controller 14 allows the user to select a cleaning program in which, in the final rinse phase, the dishes are steamed in the manner mentioned above. In this case, the cleaning process looks like this:
  1. 1) First, the dishes are pre-rinsed by applying water to the dishes from the sprays 5, 6, 7. Here, the heater 13 can be used to heat the water.
  2. 2) In a main purge phase, the controller 14 adds detergent to the water in a known manner via a detergent dispenser. The water is further sprayed with the spraying means 5, 6, 7 directly on the dishes and heated with the heater 13, if necessary. At the end of the main rinsing phase, the polluted water is pumped out.
  3. 3) The main rinse phase is followed by an intermediate rinse and final rinse phase. In a preferred embodiment of the invention, different variants are conceivable:
    • Variant I: In the intermediate rinsing phase, the dishes are rinsed with fresh water to remove dirt residues from the cleaning phase. The controller 14 operates the pump 10 at full capacity and the water is applied by all spray 5, 6, 7 directly to the dishes. At the same time, the controller 14 operates a known rinse aid dispenser. This adds rinse aid to the water introduced into the system which reduces its surface tension. In this variant, the water is preferably not heated in the intermediate rinse phase. At the end of the intermediate rinse phase, the water is pumped down to the evaporation level.
    • Variant II: As in variant I, an intermediate rinse phase takes place, but without the addition of rinse aid, and then the water is completely pumped out. Now fresh water is added again, which rinse aid is added. The water is applied at full capacity of the pump 10 on the dishes. In this case, in a variant IIa the water can be heated to 50 ° C, whereby a first heating of the dishes for the following drying phase is possible and thus the dishes can be spared. Alternatively, the water is not heated in a variant IIb and then pumped off to the evaporation level.
    • Variant I is preferable if the dishes are little polluted or if it is determined by means of a turbidity sensor, for example, that the intermediate rinse water is sufficiently clean, otherwise variant II is selected.
  4. 4) In the following part of the final rinse phase, the process water is first pumped down to a predetermined steam generation level, if not already done is. Now the water is heated by the heater 13 to at least 75 ° C, preferably at least 85 ° C. At the same time, the controller 14 operates the pump 10 with reduced delivery rate at which the water exits from the spraying means 5, 6, 7 in such a way that it drains through the tub 2 to the sump 8 without loading the dishes. In the embodiment shown, the reduced delivery rate of the pump 10 is so low, for example, that water exits only from the nozzles of the lower spray arm 5, but not from the upper spray arm 6 or the nozzle 7. In addition, the exit velocity is so low that the water is not splashes up to the dish receiving area, but dripping from the lower spray arm 5 directly to the bottom of the tub and drains from there into the sump 8. (Conceivable is also the use of an even lower flow rate at which no water exits from the spray arms, but the pump generates a certain flow in the area of the heater 13.) Steam enters the tub 2 from the heated water, which flows to the (cooler ) Condenses tableware and this heats up to a temperature of about 60 to 70 ° C. The condensed water forms drops that run off the dishes and dilute any residual salts left on the dishes.
  5. 5) The final rinse phase is followed by a drying phase in which water is removed from the tub 2 in a suitable manner. The dishes are drying.

Beim Erzeugen des Dampfs in der Klarspülphase sollte mindestens soviel Wasser im Geschirrspüler vorhanden sein, dass die Heizung 13 bedeckt ist. Eine Wasserstandserkennung, z.B. in Form einer Leitwert-, Druck- oder Trübungsmessung kann den Pegelstand im Sumpf überwachen und gegebenenfalls die Zufuhr von Frischwasser auslösen.When generating the steam in the final rinse phase, at least as much water should be present in the dishwasher that the heater 13 is covered. A water level detection, e.g. In the form of a conductivity, pressure or turbidity measurement, it is possible to monitor the level in the sump and, if necessary, trigger the supply of fresh water.

Zur Bauteilschonung können die Heizung 13 und/oder die Pumpe 10 getaktet angesteuert werden.To protect components, the heater 13 and / or the pump 10 can be controlled clocked.

Zur Überwachung und Regelung des Verdampfungsvorgangs ist im Wasser im Bereich der Heizung 13 vorzugsweise ein Temperatursensor vorgesehen, dessen Signal von der Steuerung 14 überwacht wird.To monitor and control the evaporation process, a temperature sensor is preferably provided in the water in the region of the heater 13, the signal of which is monitored by the controller 14.

Bei Dampftemperaturen oberhalb von 60°C kann eine aktive Verriegelung der Gerätetür erfolgen, mit welcher die Türe während mindestens einem Teil der Klarspülphase verriegelt werden kann, um den Benutzer beim Öffnen der Tür vor austretendem heissen Dampf zu schützen. Hierzu kann die Türe 3 mit einer geeigneten Verriegelung versehen sein.At steam temperatures above 60 ° C, an active locking of the door can be done, with which the door can be locked during at least part of the rinse phase to protect the user when exiting the door from escaping hot steam. For this purpose, the door 3 may be provided with a suitable locking.

Auch kann der Benutzer mit geeigneten Anzeigemitteln auf den Dampf hingewiesen werden.Also, the user can be made aware of the vapor with suitable means of indication.

Reiner Dampf kann unter Umständen bestimmte Geschirrmaterialien (Messerklingen, Glas) angreifen, weshalb z.B. in der oben erwähnten Phase 3a) dem Wasser mindestens ein Korrosionsinhibitor (Zinkoxyd, Silikat) zugesetzt werden kann. Denkbar ist es auch, eine Opferanode in elektrischem oder elektrolytischem Kontakt mit dem Geschirr vorzusehen, z.B. im Bereich des Besteckkorbs.Pure steam may be able to attack certain dishes (knife blades, glass). in the above-mentioned phase 3a), at least one corrosion inhibitor (zinc oxide, silicate) can be added to the water. It is also conceivable to provide a sacrificial anode in electrical or electrolytic contact with the dishes, e.g. in the area of the cutlery basket.

Erste Versuche zeigen, dass durch die Verwendung von beispielsweise 600 g Dampf die Trockenwirkung gemäss EN 50242 um ca. 14% verbessert werden kann, während der Energieverbrauch um rund 140 Wh reduziert wird.Initial tests show that the use of, for example, 600 g of steam can improve the drying effect according to EN 50242 by approx. 14%, while reducing energy consumption by around 140 Wh.

Die hier beschriebene Bedampfung des Geschirrs kann entweder bei jedem Programm oder bei Programmen, die sich insbesondere dafür eignen (z.B. Glasprogramm) im Prozessablauf integriert sein, oder von dem Benutzer über das Bedienpanel des Geräts aktiv zu- und abgewählt werden (über eine Taste oder im Einstellmodus).The steaming of the dishes described here can either be integrated in the process flow with each program or programs that are particularly suitable for it (eg glass program), or actively selected and deselected by the user via the control panel of the device (via a button or in the adjustment mode).

Claims (13)

Geschirrspüler mit einem Bottich (2) zur Aufnahme von zu reinigendem Geschirr, mit einem Dampfgenerator (13) zum Einbringen von Dampf in den Bottich (2) und mit einer Steuerung (14), wobei die Steuerung (14) ausgestaltet ist, um das Geschirr in einer Hauptspülphase mit Reinigungsmittel zu reinigen und in einer Klarspülphase das Geschirr für eine fleckenlose Trocknung vorzubereiten, dadurch gekennzeichnet, dass die Steuerung (14) dazu ausgestaltet ist, das Geschirr in der Klarspülphase mit Dampf vom Dampfgenerator (13) zu beaufschlagen, derart, dass das Geschirr von aus dem Dampf kondensierendem Wasser klargespült wird.A dishwasher having a tub (2) for receiving dishes to be cleaned, a steam generator (13) for introducing steam into the tub (2) and a controller (14), the controller (14) being arranged to hold the dishes in a main rinsing phase with detergent to clean and prepare in a rinse phase the dishes for a spotless drying, characterized in that the controller (14) is adapted to act on the dishes in the rinse phase with steam from the steam generator (13), such that the dishes are cleared of water condensing from the steam. Geschirrspüler nach Anspruch 1, wobei der Geschirrspüler weiter ein Leitungssystem (9, 11, 12) und eine Pumpe (10) aufweist, um Wasser von einem Sumpf (8) des Bottichs (2) zu Sprühmitteln (5, 6, 7) zu fördern, wobei der Dampfgenerator (13) dazu ausgestaltet ist, das Wasser im Leitungssystem (9, 11, 12) und/oder im Sumpf (8) zu erhitzen, insbesondere auf mindestens 75°C.The dishwasher according to claim 1, wherein the dishwasher further comprises a piping system (9, 11, 12) and a pump (10) for conveying water from a sump (8) of the tub (2) to spraying means (5, 6, 7) wherein the steam generator (13) is adapted to heat the water in the piping system (9, 11, 12) and / or in the sump (8), in particular to at least 75 ° C. Geschirrspüler nach Anspruch 2, wobei der Dampfgenerator (13) im Bereich der Pumpe (10), des Sumpfs (8) und/oder des Leitungssystems (9, 11, 12) zwischen Pumpe (10) und Sumpf (8) angeordnet ist.Dishwasher according to claim 2, wherein the steam generator (13) in the region of the pump (10), the sump (8) and / or the conduit system (9, 11, 12) between the pump (10) and sump (8) is arranged. Geschirrspüler nach einem der Ansprüche 2 oder 3, wobei der Dampfgenerator (13) ausgestaltet ist, um Wasser im Sumpf (8) derart zu erhitzen, dass es zu einer Dampfausgabe aus dem Sumpf (8) kommt.Dishwasher according to one of claims 2 or 3, wherein the steam generator (13) is designed to heat water in the sump (8) such that it comes to a steam discharge from the sump (8). Geschirrspüler nach einem der Ansprüche 2 bis 4, wobei die Pumpe (10) in mindestens einer vollen Förderleistung und einer reduzierten Förderleistung betreibbar ist, wobei mit der vollen Förderleistung Wasser durch alle Sprühmittel (5, 6, 7) auf das Geschirr aufbringbar ist und wobei mit der reduzierten Förderleistung Wasser derart aus den Sprühmitteln (5, 6, 7) austritt, dass es ohne Beaufschlagung des Geschirrs durch den Bottich (2) zum Sumpf (8) abfliesst, wobei die Steuerung (14) dazu ausgestaltet ist, die Pumpe (10) während mindestens einem Teil der Klarspülphase mit der reduzierten Förderleistung zu betreiben.Dishwasher according to one of claims 2 to 4, wherein the pump (10) is operable in at least one full capacity and a reduced capacity, with the full capacity water by all the spray means (5, 6, 7) can be applied to the dishes and wherein with the reduced flow rate of water from the spraying means (5, 6, 7) emerges, that it without loading the dishes by the tub (2) drains to the sump (8), wherein the controller (14) is adapted to operate the pump (10) during at least a portion of the final rinse phase at the reduced flow rate. Geschirrspüler nach Anspruch 5, wobei die Sprühmittel (5, 6, 7) eine untere Sprühanordnung (5) aufweisen, welche unterhalb eines Geschirraufnahmebereichs (4a, 4b) angeordnet ist, sowie eine obere Sprühanordnung (6, 7), welche innerhalb oder oberhalb des Geschirraufnahmebereichs (4a, 4b) angeordnet ist, wobei mit der reduzierten Förderleistung das Wasser nur durch die untere Sprühanordnung (5) austritt.Dishwasher according to claim 5, wherein the spraying means (5, 6, 7) comprise a lower spraying arrangement (5) arranged below a dish receiving area (4a, 4b) and an upper spraying arrangement (6, 7) which is inside or above the dish washer Dishwasher receiving area (4a, 4b) is arranged, wherein the water exits only through the lower spray assembly (5) with the reduced flow rate. Geschirrspüler nach einem der vorangehenden Ansprüche, wobei der Geschirrspüler eine Zugabevorrichtung für einen Klarspüler aufweist und die Steuerung (14) dazu ausgestaltet ist,
in einem ersten Teil der Klarspülphase die Zugabevorrichtung zu betätigen und Wasser mit Klarspüler auf das Geschirr zu sprühen und
in einem zweiten Teil der Klarspülphase kein Wasser auf das Geschirr zu sprühen, aber das Geschirr mit Dampf zu beaufschlagen.Dishwasher according to one of the preceding claims, wherein the dishwasher has a rinse aid adding device and the controller (14) is designed to
in a first part of the final rinse phase, actuate the addition device and spray water with rinse aid onto the dishes and
In a second part of the rinse phase, do not spray water on the dishes, but apply steam to the dishes. Geschirrspüler nach einem der vorangehenden Ansprüche, wobei der Geschirrspüler eine Türe (3) und eine Verriegelung zum Verriegeln der Türe während mindestens einem Teil der Klarspülphase aufweist.Dishwasher according to one of the preceding claims, wherein the dishwasher has a door (3) and a lock for locking the door during at least a part of the final rinse phase. Verfahren zum Betrieb eines Geschirrspülers, insbesondere nach einem der vorangehenden Ansprüche, wobei in einer Hauptspülphase das Geschirr mit Reinigungsmittel gereinigt wird und in einer Klarspülphase das Geschirr für eine fleckenlose Trocknung vorbereitet wird, dadurch gekennzeichnet, dass das Geschirr in der Klarspülphase mit Dampf beaufschlagt wird, derart, dass das Geschirr von aus dem Dampf kondensierendem Wasser klargespült wird.Method for operating a dishwasher, in particular according to one of the preceding claims, wherein in a main rinsing phase the dishes are cleaned with cleaning agent and in a final rinse phase the dishes are prepared for spotless drying, characterized in that steam is applied to the dishes in the final rinse phase, such that the dishes are rinsed with water condensing from the steam. Verfahren nach Anspruch 9, wobei der Geschirrspüler ein Leitungssystem (9, 11, 12) aufweist, um Wasser von einem Sumpf (8) des Bottichs (2) zu Sprühmitteln (5, 6, 7) zu fördern, wobei das Wasser im Leitungssystem (8, 11, 12) und/oder im Sumpf (8) erhitzt wird, um den Dampf in der Klarspülphase zu erzeugen.The method of claim 9, wherein the dishwasher has a conduit system (9, 11, 12) to To convey water from a sump (8) of the tub (2) to spray means (5, 6, 7), wherein the water in the conduit system (8, 11, 12) and / or in the sump (8) is heated to the steam in the final rinse phase. Verfahren nach Anspruch 10, wobei mindestens während einem Teil der Klarspülphase das Wasser derart durch das Leitungssystem (9, 11, 12) gefördert wird, dass es so aus den Sprühmitteln (5, 6, 7) fliesst, dass es das Geschirr nicht beaufschlägt.Process according to claim 10, wherein during at least part of the rinsing phase the water is conveyed through the pipe system (9, 11, 12) in such a way that it flows out of the spraying means (5, 6, 7) so as not to act on the dishes. Verfahren nach einem der Ansprüche 9 bis 11, wobei
in einem ersten Schritt das Wasser mit Klarspüler auf das Geschirr gesprüht wird und
in einem zweiten Schritt kein Wasser auf das Geschirr gesprüht, aber das Geschirr mit Dampf beaufschlagt wird.Method according to one of claims 9 to 11, wherein
in a first step, the water is sprayed onto the dishes with rinse aid and
In a second step, no water is sprayed on the dishes, but steam is applied to the dishes. Verfahren nach einem der Ansprüche 9 bis 12,
wobei das Geschirr vor der Beaufschlagung mit Dampf mit Wasser gespült wird, welches einen Korrosionsinhibitor, insbesondere Zinkoxyd und/oder Silikat, enthält, und/oder
wobei mindestens ein Teil des Geschirrs im Geschirrspüler in elektrischen oder elektrolytischen Kontakt mit einer Opferanode gebracht wird.Method according to one of claims 9 to 12,
wherein the dishes are rinsed with water before the application of steam, which contains a corrosion inhibitor, in particular zinc oxide and / or silicate, and / or
wherein at least a portion of the dishes in the dishwasher is placed in electrical or electrolytic contact with a sacrificial anode.
EP06012938A 2006-06-23 2006-06-23 Dishwasher with steam generator and method of its operation Active EP1738677B1 (en)

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008120847A1 (en) * 2007-03-31 2008-10-09 Lg Electronics Inc. Dishwasher
DE102007037934A1 (en) 2007-08-11 2009-02-12 Premark Feg L.L.C., Wilmington Dishwashing machine and method for cleaning items to be washed
WO2009028787A1 (en) * 2007-08-31 2009-03-05 Lg Electronics Inc. A method of controlling a dishwashing machine having a steam generator
WO2009028916A1 (en) * 2007-08-31 2009-03-05 Lg Electronics Inc. Dish washing machine
EP2074922A2 (en) 2007-12-27 2009-07-01 V-Zug AG Household device, in particular dishwasher, with circulating, clocked heater
WO2009114337A1 (en) * 2008-03-11 2009-09-17 Premark Feg L.L.C. Dishwasher and method for cleaning wash ware
US20090235957A1 (en) * 2007-12-10 2009-09-24 Lg Electronics Inc. Method for controlling dishwasher
DE102008017597A1 (en) 2008-04-07 2009-10-08 Premark Feg L.L.C., Wilmington Dishwashing machine and method for cleaning items to be washed
EP2156774A2 (en) * 2008-08-21 2010-02-24 LG Electronics Inc. Controlling method of dishwasher
EP2510864A1 (en) * 2011-04-12 2012-10-17 LG Electronics, Inc. Dishwasher
US8291922B2 (en) 2007-08-31 2012-10-23 Lg Electronics Inc. Dish washing machine
EP2156775A3 (en) * 2008-08-21 2016-07-27 LG Electronics Inc. Control method for a dishwasher
US20180213998A1 (en) * 2015-08-03 2018-08-02 Lg Electronics Inc. Dishwasher and control method thereof
DE102017126856A1 (en) 2017-11-15 2019-05-16 Illinois Tool Works Inc. Dishwasher and method for cleaning items in a dishwasher
DE102019111848A1 (en) * 2019-05-07 2020-11-12 Illinois Tool Works Inc. System for optical wash ware identification in dishwashers, method for optical wash ware identification, dishwasher with an optical wash ware identification system and method for operating such a dishwasher
EP3932281A1 (en) 2020-06-30 2022-01-05 Arçelik Anonim Sirketi A dishwasher comprising a heater

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100023169A (en) * 2008-08-21 2010-03-04 엘지전자 주식회사 Dishwasher and controlling method for the same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1376486A (en) * 1963-01-18 1964-10-31 Method of washing and drying dishes or the like and machine for washing and drying dishes
US4235642A (en) * 1978-12-28 1980-11-25 Federighi George B Dishwasher using steam to heat cold wash and rinse waters and spray them against dishes during the wash and rinse cycles
US4457323A (en) * 1979-02-02 1984-07-03 Norris Industries Dishwasher with steam generating heater and cold water input
US4641671A (en) * 1984-02-20 1987-02-10 Daikin Industries Ltd. Automatic dishwasher
EP1004266A1 (en) * 1998-10-28 2000-05-31 SMEG S.p.A. Dishwasher provided with a preheating cycle
DE102004048091A1 (en) * 2004-09-30 2006-04-06 Meiko Maschinenbau Gmbh & Co. Kg Dishwasher with thermal aftertreatment
WO2006050766A1 (en) * 2004-11-10 2006-05-18 Electrolux Home Products Corporation N.V. Method for operating a dishwasher and dishwasher for carrying out said method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1376486A (en) * 1963-01-18 1964-10-31 Method of washing and drying dishes or the like and machine for washing and drying dishes
US4235642A (en) * 1978-12-28 1980-11-25 Federighi George B Dishwasher using steam to heat cold wash and rinse waters and spray them against dishes during the wash and rinse cycles
US4457323A (en) * 1979-02-02 1984-07-03 Norris Industries Dishwasher with steam generating heater and cold water input
US4641671A (en) * 1984-02-20 1987-02-10 Daikin Industries Ltd. Automatic dishwasher
EP1004266A1 (en) * 1998-10-28 2000-05-31 SMEG S.p.A. Dishwasher provided with a preheating cycle
DE102004048091A1 (en) * 2004-09-30 2006-04-06 Meiko Maschinenbau Gmbh & Co. Kg Dishwasher with thermal aftertreatment
WO2006050766A1 (en) * 2004-11-10 2006-05-18 Electrolux Home Products Corporation N.V. Method for operating a dishwasher and dishwasher for carrying out said method

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7810512B2 (en) 2007-03-31 2010-10-12 Lg Electronics Inc. Dishwasher
WO2008120847A1 (en) * 2007-03-31 2008-10-09 Lg Electronics Inc. Dishwasher
US8020568B2 (en) 2007-03-31 2011-09-20 Lg Electronics Inc. Dishwasher
DE102007037934A1 (en) 2007-08-11 2009-02-12 Premark Feg L.L.C., Wilmington Dishwashing machine and method for cleaning items to be washed
WO2009028787A1 (en) * 2007-08-31 2009-03-05 Lg Electronics Inc. A method of controlling a dishwashing machine having a steam generator
WO2009028916A1 (en) * 2007-08-31 2009-03-05 Lg Electronics Inc. Dish washing machine
US8291922B2 (en) 2007-08-31 2012-10-23 Lg Electronics Inc. Dish washing machine
CN101808562B (en) * 2007-08-31 2012-08-08 Lg电子株式会社 A method of controlling a dishwashing machine having a steam generator
US7811386B2 (en) 2007-08-31 2010-10-12 Lg Electronics Inc. Method of controlling a dishwashing machine having a steam generator
US20090235957A1 (en) * 2007-12-10 2009-09-24 Lg Electronics Inc. Method for controlling dishwasher
EP2074922A2 (en) 2007-12-27 2009-07-01 V-Zug AG Household device, in particular dishwasher, with circulating, clocked heater
WO2009114337A1 (en) * 2008-03-11 2009-09-17 Premark Feg L.L.C. Dishwasher and method for cleaning wash ware
DE102008013549A1 (en) 2008-03-11 2009-09-17 Premark Feg L.L.C., Wilmington Dishwashing machine and method for cleaning items to be washed
CN101969830B (en) * 2008-03-11 2013-05-08 浦瑞玛柯Feg有限责任公司 Dishwasher and method for cleaning wash ware
WO2009126482A1 (en) 2008-04-07 2009-10-15 Premark Feg L.L.C. Dishwasher and method for cleaning wash ware
DE102008017597A1 (en) 2008-04-07 2009-10-08 Premark Feg L.L.C., Wilmington Dishwashing machine and method for cleaning items to be washed
EP2156774A2 (en) * 2008-08-21 2010-02-24 LG Electronics Inc. Controlling method of dishwasher
CN101653350B (en) * 2008-08-21 2011-04-06 Lg电子株式会社 Controlling method of dishwasher
EP2156775A3 (en) * 2008-08-21 2016-07-27 LG Electronics Inc. Control method for a dishwasher
US8409361B2 (en) 2008-08-21 2013-04-02 Lg Electronics Inc. Controlling method of dishwasher
EP2156774A3 (en) * 2008-08-21 2014-07-23 LG Electronics Inc. Controlling method of dishwasher
EP2510864A1 (en) * 2011-04-12 2012-10-17 LG Electronics, Inc. Dishwasher
US9211049B2 (en) 2011-04-12 2015-12-15 Lg Electronics Inc. Dishwasher
EP2818091A1 (en) * 2011-04-12 2014-12-31 LG Electronics, Inc. Dishwasher
US20180213998A1 (en) * 2015-08-03 2018-08-02 Lg Electronics Inc. Dishwasher and control method thereof
US10842344B2 (en) * 2015-08-03 2020-11-24 Lg Electronics Inc. Dishwasher and control method thereof
DE102017126856A1 (en) 2017-11-15 2019-05-16 Illinois Tool Works Inc. Dishwasher and method for cleaning items in a dishwasher
WO2019099224A1 (en) 2017-11-15 2019-05-23 Illinois Tool Works Inc. Dishwasher and method for cleaning washware in a dishwasher
US11950743B2 (en) 2017-11-15 2024-04-09 Illinois Tool Works Inc. Dishwasher and method for cleaning washware in a dishwasher
DE102019111848A1 (en) * 2019-05-07 2020-11-12 Illinois Tool Works Inc. System for optical wash ware identification in dishwashers, method for optical wash ware identification, dishwasher with an optical wash ware identification system and method for operating such a dishwasher
WO2020226922A1 (en) 2019-05-07 2020-11-12 Illinois Tool Works Inc. System for optical wash item recognition in dishwashers, method for optical wash item recognition, dishwasher with an optical wash item recognition system and method for operating such a dishwasher
DE102019111848B4 (en) 2019-05-07 2023-12-21 Illinois Tool Works Inc. System for optically detecting items to be washed in dishwashers, method for optically identifying items to be washed, dishwasher with an optical item recognition system and method for operating such a dishwasher
EP3932281A1 (en) 2020-06-30 2022-01-05 Arçelik Anonim Sirketi A dishwasher comprising a heater

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