EP1696780A1 - Dishwasher comprising a circulating pump - Google Patents

Dishwasher comprising a circulating pump

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Publication number
EP1696780A1
EP1696780A1 EP04797897A EP04797897A EP1696780A1 EP 1696780 A1 EP1696780 A1 EP 1696780A1 EP 04797897 A EP04797897 A EP 04797897A EP 04797897 A EP04797897 A EP 04797897A EP 1696780 A1 EP1696780 A1 EP 1696780A1
Authority
EP
European Patent Office
Prior art keywords
spray nozzles
spray
nozzle arm
rinsing liquid
groups
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04797897A
Other languages
German (de)
French (fr)
Other versions
EP1696780B1 (en
Inventor
Andreas Haas
Jens Laghusemann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Priority to PL04797897T priority Critical patent/PL1696780T3/en
Publication of EP1696780A1 publication Critical patent/EP1696780A1/en
Application granted granted Critical
Publication of EP1696780B1 publication Critical patent/EP1696780B1/en
Anticipated expiration legal-status Critical
Not-in-force legal-status Critical Current

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Classifications

    • 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
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/22—Rotary spraying devices
    • A47L15/23—Rotary spraying devices moved by means of the sprays
    • 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
    • A47L15/4278—Nozzles
    • A47L15/4282—Arrangements to change or modify spray pattern or direction

Definitions

  • the invention relates to a dishwasher with a circulating pump and at least one spray system provided in the washing compartment with at least two groups of spray nozzles on a rotatably mounted nozzle arm, wherein the groups of spray nozzles are each independently controllable by flowing liquid.
  • nozzle arms with channels arranged separately from one another the corresponding channels being equipped with nozzle outlets.
  • the nozzles associated with a channel are also referred to as a group of spray nozzles.
  • DE 38 16 408 discloses a spray nozzle system which has a nozzle arm on which different groups of spray nozzles are arranged, each of which can be supplied with irrigation fluid independently of one another by means of a freely selectable reversing device. In this way, the jet effect or the direction of rotation of the nozzle arm can be influenced.
  • the control takes place here in a freely selectable sequence on the reversing device, which is in accordance with the different groups via separate supply lines in combination.
  • the invention is therefore based on the object to provide a cheap and simple switching device with which the flow path can be unlocked to one or the other group of spray nozzles.
  • the means which arbitrarily influences the volume flow of the rinsing liquid is arranged in an advantageous manner in the axis of rotation of the nozzle arm and here in the feed channel of the rinsing liquid. Due to this design is achieved that no additional supply paths and means for feeding the individual groups of spray nozzles are required. In addition, such a design lacks a reversing device and the accommodation of additional pumps in the housing.
  • the means advantageously comprises a ball which is arranged in a chamber-like cage through which flushing fluid flows.
  • the chamber-like cage acts - in each case separately - the groups of spray nozzles together, so that the volume flow is guided either over the left or the right side of the chamber.
  • the chamber-like cage has a depression in the center, wherein a first and a second limited translatory guide track for the ball adjoin the depression on both sides.
  • the first guideway communicates with the one group of spray nozzles
  • the second guideway communicating with the other group of spray nozzles. Due to the arbitrary position of the ball in each case the channel is released on the opposite side, so that the volume flow reaches the subregion of the arm. For reasons of equilibrium, the subregions are designed in such a way that either the inner or the outer region is flowed through.
  • FIG. 1 is a plan view of a nozzle arm in the neutral position of the ball
  • Figure 2 is a plan view of the nozzle arm, wherein the ball is arranged in a first locking position and
  • Figure 3 a further plan view of the nozzle arm, in which case the ball is arranged in a second blocking position.
  • Figures 1 to 3 show in isolation in plan view each have a nozzle arm 1, on which two groups 2 and 3 of spray nozzles 4 and 5 are arranged.
  • the groups 2 and 3 are controlled by spray nozzles 4 and 5, each independently of each other by flowing through rinsing liquid.
  • a means 6 is provided in the region of the nozzle arm 1, which independently of control either randomly either one group 2 Figure 2 or the other group 3 Figure 3 of spray nozzles 4 and 5 at the Nozzle arm 1 for the rinsing liquid releases.
  • Figures 2 and 3 in this case the in each case with respect to the position of the means 6 marked with arrows nozzles are released.
  • the means 6 is arranged in the axis of rotation 7 of the nozzle barrel 1.
  • the means 6 lies in the supply channel of the rinsing liquid, which is also held in the axis of rotation 7 of the nozzle arm 1.
  • FIG. 2 shows the release of the inner nozzle group 2
  • FIG. 3 representing the release of the outer nozzle group 3. If no rinsing liquid is conveyed by means of the circulating pump into the spray system and the nozzle arm 1 is stationary, the means 6 is located centrally in the axis of rotation 7, shown in FIG. 1.
  • the means 6 preferably comprises a ball 9, which is held in a chamber-like cage 10 through which flushing fluid flows.
  • the groups 2 and 3 of spray nozzles 4 and 5 interact with the chamber-like cage 10, each separated from each other.
  • a not-shown recess is provided in the axis of rotation 7 of the nozzle arm 1 in the chamber-like cage 10, wherein in each case on both sides to recess a first and a second limited translational guide track 11 and 12 is arranged for the ball 9.
  • the first guideway 11 communicates with one group 2 of spray nozzles 4, the second guideway 12 communicating with the other group 3 of spray nozzles 5.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

The dishwashing machine has a circulation pump and a spray system having at least 2 groups of spray jets (4,5) provided by a rotary spray arm (1), with independent control of the fluid supplied to the different spray jet groups (2,3). A device (6) is provided at the rotation axis (7) of the spray arm for selection of one or other spray jet group in dependence on the pressure of the rinsing liquid and/or the spray arm rotation.

Description

Beschreibungdescription
Geschirrspülmaschine mit einer UmwälzpumpeDishwasher with a circulation pump
Die Erfindung betrifft eine Geschirrspülmaschine mit einer Umwälzpumpe und mit mindestens einem im Spülraum vorgesehenen Sprühsystem mit wenigstens zwei Gruppen von Sprühdüsen an einem drehbar gelagerten Düsenarm, wobei die Gruppen von Sprühdüsen jeweils unabhängig voneinander von durchströmender Flüssigkeit ansteuerbar sind.The invention relates to a dishwasher with a circulating pump and at least one spray system provided in the washing compartment with at least two groups of spray nozzles on a rotatably mounted nozzle arm, wherein the groups of spray nozzles are each independently controllable by flowing liquid.
Aus dem Stand der Technik sind hinreichend Sprühsysteme für Geschirrspülmaschinen bekannt, die Düsenarme mit voneinander getrennt angeordneten Kanälen aufweisen, wobei die entsprechenden Kanäle mit Düsenaustritten bestückt sind. Die einem Kanal zugeordneten Düsen werden auch als Gruppe von Sprühdüsen bezeichnet. So ist beispielsweise aus der DE 38 16408 ein Sprühdüsensystem bekannt, welches einen Düsenarm aufweist, an dem unterschiedliche Gruppen von Sprühdüsen angeordnet sind, die jeweils unabhängig voneinander mittels einer frei wählbaren Umsteuervorrichtung mit Spülflüssigkeit versorgt werden können. Auf diese Weise kann die Strahleinwirkung bzw. die Drehrichtung des Düsenarms beeinflusst werden. Die Ansteuerung erfolgt hierbei in frei wählbarer Folge über die Umsteuerungseinrichtung, die entsprechend mit den unterschiedlichen Gruppen über gesonderte Versorgungsleitungen in Verbindung steht. Eine andere Ausführungsform zur Ansteuerung von Gruppen von Sprühdüsen ist aus der DE 696 18 563 bekannt, wobei hier die Ansteuerung der einzelnen Gruppen in dem Düsenarm zwar auch über eine frei wählbare Umsteuerungsvorrichtung erfolgt, jedoch nach dem dort geschilderten Verfahren zwei Pumpen zur Speisung vorgehalten werden, die unabhängig voneinander betätigt werden, um den ersten Verteiler bzw. den zweiten Verteiler ebenfalls über gesonderte Leitungen zu speisen.Sufficient spray systems for dishwashers are known from the prior art, which have nozzle arms with channels arranged separately from one another, the corresponding channels being equipped with nozzle outlets. The nozzles associated with a channel are also referred to as a group of spray nozzles. For example, DE 38 16 408 discloses a spray nozzle system which has a nozzle arm on which different groups of spray nozzles are arranged, each of which can be supplied with irrigation fluid independently of one another by means of a freely selectable reversing device. In this way, the jet effect or the direction of rotation of the nozzle arm can be influenced. The control takes place here in a freely selectable sequence on the reversing device, which is in accordance with the different groups via separate supply lines in combination. Another embodiment for the control of groups of spray nozzles is known from DE 696 18 563, wherein here the control of the individual groups in the nozzle arm is also done via a freely selectable reversing device, but according to the method described there, two pumps are provided for feeding which are operated independently of each other to also feed the first distributor and the second distributor via separate lines.
Bei dieser nach dem Stand der Technik bekannten Ansteuerung von an einem Düsenarm angeordneten Sprühdüsengruppen wird es als nachteilig angesehen, dass die bekannten Ausführungsformen ausschließlich die Ansteuerung der einzelnen Gruppen nur über gesonderte Versorgungsleitungen mit zusätzlichen Pumpen oder frei wählbaren Umsteuerungseinrichtungen ermöglichen.In this known in the prior art control of arranged on a nozzle arm spray nozzle groups, it is considered disadvantageous that the known embodiments only allow the control of the individual groups only via separate supply lines with additional pumps or freely selectable reversing devices.
Der Erfindung liegt daher die Aufgabe zugrunde, eine günstige und einfache Umschaltvorrichtung bereit zu stellen, mit der der Strömungsweg zu der einen oder der anderen Gruppe von Sprühdüsen freigeschaltet werden kann .The invention is therefore based on the object to provide a cheap and simple switching device with which the flow path can be unlocked to one or the other group of spray nozzles.
Die Aufgabe der Erfindung wird durch die Merkmale des Anspruchs 1 gelöst, wobei Weiterbildungen der Erfindung durch die Unteransprüche wiedergegeben werden. Durch die Anordnung eines im Bereich des Düsenarms vorgesehenen Mittels, welches steuerungsunabhängig jeweils zufällig entweder die eine oder andere Gruppe von Sprühdüsen an einem Düsenarm für die Spülflüssigkeit frei gibt, wird erreicht, dass nach dem Zufallsprinzip folgend Teilbereiche des Sprüharms mit Spülflüssigkeit versorgt werden. Der zur Verfügung stehende Volumenstrom wird somit durch eine geringe Anzahl von Düsen geleitet, was einen Anstieg der Sprühstrahlhöhe an den einzelnen Düsen zur Folge hat. Außerdem wird durch die Aufteilung des Volumenstromes insgesamt weniger Wasser in Umlauf gebracht, wodurch Wasser eingespart wird. Das Mittel, welches willkürlich den Volumenstrom der Spülflüssigkeit steuernd beeinflusst, ist dabei in vorteilhafter Weise in der Drehachse des Düsenarms und hier im Zuführkanal der Spülflüssigkeit angeordnet. Auf Grund dieser Ausbildung wird erreicht, dass keine zusätzlichen Zuführwege sowie Mittel zur Speisung der einzelnen Gruppen von Sprühdüsen mehr erforderlich sind. Zudem entbehrt eine derartige Ausgestaltung eine Umsteuereinrichtung sowie die Unterbringung von zusätzlichen Pumpen im Gehäuse.The object of the invention is solved by the features of claim 1, wherein developments of the invention are reproduced by the dependent claims. By arranging a provided in the region of the nozzle arm means which randomly either randomly releases either one or the other group of spray nozzles on a nozzle arm for the rinsing liquid, it is achieved that subsections of the spray arm are supplied with rinsing liquid following the random principle. The available volume flow is thus passed through a small number of nozzles, which has an increase in the spray jet height at the individual nozzles result. In addition, less water is circulated through the distribution of the volume flow, whereby water is saved. The means which arbitrarily influences the volume flow of the rinsing liquid is arranged in an advantageous manner in the axis of rotation of the nozzle arm and here in the feed channel of the rinsing liquid. Due to this design is achieved that no additional supply paths and means for feeding the individual groups of spray nozzles are required. In addition, such a design lacks a reversing device and the accommodation of additional pumps in the housing.
Das Mittel als solches nimmt entweder durch den Druck der Spülflüssigkeit und/oder die Rotation des Düsenarms unterschiedliche Lagen zur Freigabe der einen oder anderen Gruppen von Sprühdüsen ein. Dabei umfasst das Mittel in vorteilhafter Weise eine Kugel, die in einem von Spülflüssigkeit durchströmenden kammerartigen Käfig angeordnet ist. Mit dem kammerartigen Käfig wirken - jeweils getrennt voneinander - die Gruppen von Sprühdüsen zusammen, so dass der Volumenstrom entweder über die linke oder die rechte Seite der Kammer geführt wird. Der kammerartige Käfig weist im Zentrum eine Vertiefung auf, wobei sich jeweils beidseitig an die Vertiefung eine erste und eine zweite begrenzte translatorische Führungsbahn für die Kugel anschließt. Somit besteht die Möglichkeit, dass jeweils die erste Führungsbahn mit der einen Gruppe von Sprühdüsen in Verbindung steht, wobei die zweite Führungsbahn mit der anderen Gruppe von Sprühdüsen in Verbindung steht. Durch die willkürliche Lage der Kugel wird jeweils der Kanal auf der gegenüberliegenden Seite freigegeben, so dass der Volumenstrom in den Teilbereich des Armes gelangt. Die Teilbereiche sind aus Gleichgewichtsgründen so gestaltet, dass entweder der innere oder der äußere Bereich durchströmt wird.The means as such, either by the pressure of the rinsing liquid and / or the rotation of the nozzle arm takes different layers to release the one or other group of spray nozzles. In this case, the means advantageously comprises a ball which is arranged in a chamber-like cage through which flushing fluid flows. With the chamber-like cage act - in each case separately - the groups of spray nozzles together, so that the volume flow is guided either over the left or the right side of the chamber. The chamber-like cage has a depression in the center, wherein a first and a second limited translatory guide track for the ball adjoin the depression on both sides. Thus, there is the possibility that in each case the first guideway communicates with the one group of spray nozzles, the second guideway communicating with the other group of spray nozzles. Due to the arbitrary position of the ball in each case the channel is released on the opposite side, so that the volume flow reaches the subregion of the arm. For reasons of equilibrium, the subregions are designed in such a way that either the inner or the outer region is flowed through.
Durch das Wechselspülen zwischen oberer / unterer Ebene und mittlerer Ebene entsteht im mittleren Spülraum regelmäßig eine Spülpause, in der kein Volumenstrom zur Verfügung steht. Die Kugel läuft dann in die leicht abgesenkte Vertiefung des kammerartigen Käfigs zurück. Beim Umschalten der Spülebene hat die Kugel dann wieder die Möglichkeit in eine der beiden Seiten gedrückt zu werden, um auf diese Weise entsprechend wieder die eine oder die andere Gruppe von Sprühdüsen zu sperren, so dass über den Verlauf des Programmes eine Wechselwirkung zwischen den beiden Gruppen von Sprühdüsen sich einstellt. Ein Ausführungsbeispiel der Erfindung wird an Hand der nachstehenden Figuren 1 bis 3 näher erläutert, dabei zeigen:The alternating flushing between the upper / lower level and the middle level results in a regular purging break in the middle flushing room, in which no volume flow is available. The ball then runs back into the slightly lowered recess of the chamber-like cage. When switching the flush level, the ball then again has the opportunity to be pressed into one of the two sides, in order to block in this way again one or the other group of spray nozzles, so that over the course of the program, an interaction between the two groups of spray nozzles. An embodiment of the invention will be explained in more detail with reference to the following figures 1 to 3, in which:
Figur 1 : eine Draufsicht auf einen Düsenarm in der Neutralstellung der Kugel,FIG. 1 is a plan view of a nozzle arm in the neutral position of the ball;
Figur 2: eine Draufsicht auf den Düsenarm, wobei die Kugel in einer ersten sperrenden Lage angeordnet ist undFigure 2 is a plan view of the nozzle arm, wherein the ball is arranged in a first locking position and
Figur 3: eine weitere Draufsicht auf den Düsenarm, wobei hier die Kugel in einer zweiten sperrenden Lage angeordnet ist.Figure 3: a further plan view of the nozzle arm, in which case the ball is arranged in a second blocking position.
Die Figuren 1 bis 3 zeigen in isolierter Darstellung in Draufsicht jeweils einen Düsenarm 1 , an dem zwei Gruppen 2 und 3 von Sprühdüsen 4 und 5 angeordnet sind.Figures 1 to 3 show in isolation in plan view each have a nozzle arm 1, on which two groups 2 and 3 of spray nozzles 4 and 5 are arranged.
Dabei werden die Gruppen 2 und 3 von Sprühdüsen 4 und 5 jeweils unabhängig voneinander von durchströmender Spülflüssigkeit angesteuert. Wie aus der Zusammenschau der Figuren 1 bis 3 zu erkennen ist, ist im Bereich des Düsenarmes 1 ein Mittel 6 vorgesehen, welches steuerungsunabhängig jeweils zufällig entweder die eine Gruppe 2 Figur 2 oder die andere Gruppe 3 Figur 3 von Sprühdüsen 4 bzw. 5 an dem Düsenarm 1 für die Spülflüssigkeit freigibt. Wie aus den Figuren 2 und 3 zu erkennen ist, sind hierbei die in Bezug auf die Lage des Mittels 6 jeweils die mit Pfeilen gekennzeichneten Düsen freigegeben.In this case, the groups 2 and 3 are controlled by spray nozzles 4 and 5, each independently of each other by flowing through rinsing liquid. As can be seen from the synopsis of Figures 1 to 3, a means 6 is provided in the region of the nozzle arm 1, which independently of control either randomly either one group 2 Figure 2 or the other group 3 Figure 3 of spray nozzles 4 and 5 at the Nozzle arm 1 for the rinsing liquid releases. As can be seen from Figures 2 and 3, in this case the in each case with respect to the position of the means 6 marked with arrows nozzles are released.
Wie aus der Figur 1 zu erkennen ist, ist das Mittel 6 in der Drehachse 7 des Düsenarrnes 1 angeordnet. Das Mittel 6 liegt dabei im Zuführungskanal der Spülflüssigkeit, der ebenfalls in der Drehachse 7 des Düsenarms 1 vorgehalten wird.As can be seen from FIG. 1, the means 6 is arranged in the axis of rotation 7 of the nozzle barrel 1. The means 6 lies in the supply channel of the rinsing liquid, which is also held in the axis of rotation 7 of the nozzle arm 1.
Aus der Zusammenschau der Figuren 1 bis 3, insbesondere auch in Bezug auf den Pfeil 8, der die Bewegungsrichtung des Mittels 6 darstellt, lässt sich nun erkennen, dass das Mittel 6 unterschiedliche Lagen einnimmt, wobei die entsprechende Endlage durch den Druck der Spülflüssigkeit und/oder die Rotation des Düsenarmes 1 bewirkt wird, um die eine oder die andere Gruppe 2, 3 von Sprühdüsen 4, 5 freizugeben. So zeigt die Figur 2 die Freigabe der inneren Düsengruppe 2, wobei die Figur 3 die Freigabe der äußeren Düsengruppe 3 darstellt. Wenn keine Spülflüssigkeit mittels der Umwälzpumpe in das Sprühsystem gefördert und der Düsenarm 1 still steht, liegt das Mittel 6 zentral in der Drehachse 7, dargestellt in der Figur 1.From the synopsis of Figures 1 to 3, in particular also with respect to the arrow 8, which represents the direction of movement of the means 6, it can now be seen that the means 6 occupies different positions, the corresponding end position by the pressure of the rinsing liquid and / or the rotation of the nozzle arm 1 is effected to release one or the other group 2, 3 of spray nozzles 4, 5. Thus, FIG. 2 shows the release of the inner nozzle group 2, FIG. 3 representing the release of the outer nozzle group 3. If no rinsing liquid is conveyed by means of the circulating pump into the spray system and the nozzle arm 1 is stationary, the means 6 is located centrally in the axis of rotation 7, shown in FIG. 1.
Wie aus den Figuren 1 bis 3 zu erkennen ist, umfasst das Mittel 6 vorzugsweise eine Kugel 9, die in einem von Spülflüssigkeit durchströmenden kammerartigen Käfig 10 vorgehalten wird. Wie aus der Draufsicht zu erkennen ist, wirken mit dem kammerartigen Käfig 10 jeweils getrennt voneinander die Gruppen 2 und 3 von Sprühdüsen 4 und 5 zusammen. Dabei ist in der Rotationsachse 7 des Düsenarmes 1 in dem kammerartigen Käfig 10 eine nicht näher dargestellte Vertiefung vorgesehen, wobei jeweils beidseitig zur Vertiefung eine erste und eine zweite begrenzte translatorische Führungsbahn 11 und 12 für die Kugel 9 angeordnet ist. Es wird nun aus den Figuren 2 und 3 ersichtlich, dass die erste Führungsbahn 11 mit der einen Gruppe 2 von Sprühdüsen 4 in Verbindung steht, wobei die zweite Führungsbahn 12 mit der anderen Gruppe 3 von Sprühdüsen 5 in Verbindung steht.As can be seen from FIGS. 1 to 3, the means 6 preferably comprises a ball 9, which is held in a chamber-like cage 10 through which flushing fluid flows. As can be seen from the top view, the groups 2 and 3 of spray nozzles 4 and 5 interact with the chamber-like cage 10, each separated from each other. In this case, a not-shown recess is provided in the axis of rotation 7 of the nozzle arm 1 in the chamber-like cage 10, wherein in each case on both sides to recess a first and a second limited translational guide track 11 and 12 is arranged for the ball 9. It It will now be seen from Figures 2 and 3 that the first guideway 11 communicates with one group 2 of spray nozzles 4, the second guideway 12 communicating with the other group 3 of spray nozzles 5.
Wie schon oben näher erläutert, ergibt sich dadurch ein willkürlicher Steuerungsmechanismus, der insbesondere die aus den beiden Gruppen 2, 3 austretenden Spülflüssigkeitsstrahlen mit einer besonderen Intensität austreten lässt, so dass eine wechselseitige Reinigung des Geschirrs vorgenommen wird. Dies auch dadurch bedingt, dass die Bahnen von Sprühstrahlen wechseln. As explained in more detail above, this results in an arbitrary control mechanism, which in particular can escape the rinsing liquid jets emerging from the two groups 2, 3 with a particular intensity, so that a mutual cleaning of the dishes is carried out. This also due to the fact that the webs of spray jets change.

Claims

Patentansprüche claims
1. Geschirrspülmaschine mit einer Umwälzpumpe und mit mindestens einem im Sprühraum vorgesehenen Sprühsystem mit wenigstens zwei Gruppen von Sprühdüsen an einem drehbar gelagerten Düsenarm, wobei die Gruppen von Sprühdüsen jeweils unabhängig voneinander von durchströmender Spülflüssigkeit ansteuerbar sind, dadurch gekennzeichnet, dass im Bereich des Düsenarmes (1) ein Mittel (6) vorgesehen ist, welches steuerungsunabhängig, jeweils zufällig entweder die eine oder die andere Gruppe (2), (3) von Sprühdüsen (4), (5) an dem Düsenarm (1) für die Spülflüssigkeit freigibt.1. Dishwasher with a circulating pump and with at least one provided in the spray chamber spray system with at least two groups of spray nozzles on a rotatably mounted nozzle arm, the groups of spray nozzles are each independently controlled by flowing rinsing liquid, characterized in that in the region of the nozzle arm (1 ) a means (6) is provided which independently of control, each randomly releases either the one or the other group (2), (3) of spray nozzles (4), (5) on the nozzle arm (1) for the rinsing liquid.
2. Geschirrspülmaschine nach Anspruch 1, dadurch gekennzeichnet, dass das Mittel (6) in der Rotationsachse (7) des Düsenarmes (1) angeordnet ist.2. Dishwasher according to claim 1, characterized in that the means (6) in the rotational axis (7) of the nozzle arm (1) is arranged.
3. Geschirrspülmaschine nach Anspruch 2, dadurch gekennzeichnet, dass das Mittel (6) im Zuführungskanal der Spülflüssigkeit angeordnet ist.3. Dishwasher according to claim 2, characterized in that the means (6) is arranged in the supply channel of the rinsing liquid.
4. Geschirrspülmaschine nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, dass das Mittel (6) entweder durch den Druck der Spülflüssigkeit und/oder die Rotation des Düsenarmes (1) unterschiedliche Lagen zur Freigabe der einen oder der anderen Gruppe (2), (3) von Sprühdüsen (4), (5) einnimmt.4. Dishwasher according to claims 1 to 3, characterized in that the means (6) either by the pressure of the rinsing liquid and / or the rotation of the nozzle arm (1) different layers to release the one or the other group (2), ( 3) of spray nozzles (4), (5) occupies.
5. Geschirrspülmaschine nach Anspruch 3, dadurch gekennzeichnet, dass das Mittel (6) vorzugsweise eine Kugel (9) umfasst, die in einem von Spülflüssigkeit durchströmenden kammerartigen Käfig (10) angeordnet ist.5. Dishwasher according to claim 3, characterized in that the means (6) preferably comprises a ball (9) which is arranged in a rinsing liquid flowing through the chamber-like cage (10).
6. Geschirrspülmaschine nach Anspruch 4, dadurch gekennzeichnet, dass mit dem kammerartigen Käfig (10) jeweils getrennt von einander die Gruppen (2) und (3) von Sprühdüsen (4) und (5) zusammenwirken.6. Dishwasher according to claim 4, characterized in that with the chamber-like cage (10) each separately from each other, the groups (2) and (3) of spray nozzles (4) and (5) cooperate.
7. Geschirrspülmaschine nach Anspruch 6, dadurch gekennzeichnet, dass in der Rotationsachse (7) des Düsenarmes (1) der kammerartige Käfig (10) eine Vertiefung aufweist, wobei jeweils beidseitig zu der Vertiefung eine erste und eine zweite begrenzte translatorische Führungsbahn (11) und (12) für die Kugel (9) angeordnet ist.7. Dishwasher according to claim 6, characterized in that in the axis of rotation (7) of the nozzle arm (1) of the chamber-like cage (10) has a recess, wherein on both sides of the recess a first and a second limited translational guide track (11) and (12) for the ball (9) is arranged.
8. Geschirrspülmaschine nach Anspruch 7, dadurch gekennzeichnet, dass jeweils die erste Führungsbahn (11) mit der einen Gruppe (2) von Sprühdüsen (4) in Verbindung steht, wobei die zweite Führungsbahn (12) mit der anderen Gruppe (3) von Sprühdüsen (5) in Verbindung steht. 8. Dishwasher according to claim 7, characterized in that in each case the first guide track (11) with the one group (2) of spray nozzles (4) is in communication, wherein the second guide track (12) with the other group (3) of spray nozzles (5) communicates.
EP04797897A 2003-11-25 2004-11-15 Dishwasher comprising a circulating pump Not-in-force EP1696780B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04797897T PL1696780T3 (en) 2003-11-25 2004-11-15 Dishwasher comprising a circulating pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10355343A DE10355343B3 (en) 2003-11-25 2003-11-25 Electric dishwashing machine with circulation pump and rotary spray arm with pseudo-random selection of different spray jet groups
PCT/EP2004/012926 WO2005058123A1 (en) 2003-11-25 2004-11-15 Dishwasher comprising a circulating pump

Publications (2)

Publication Number Publication Date
EP1696780A1 true EP1696780A1 (en) 2006-09-06
EP1696780B1 EP1696780B1 (en) 2008-03-05

Family

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EP04797897A Not-in-force EP1696780B1 (en) 2003-11-25 2004-11-15 Dishwasher comprising a circulating pump

Country Status (7)

Country Link
US (1) US20070056613A1 (en)
EP (1) EP1696780B1 (en)
AT (1) ATE387881T1 (en)
DE (2) DE10355343B3 (en)
ES (1) ES2300846T3 (en)
PL (1) PL1696780T3 (en)
WO (1) WO2005058123A1 (en)

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Also Published As

Publication number Publication date
ES2300846T3 (en) 2008-06-16
DE502004006445D1 (en) 2008-04-17
ATE387881T1 (en) 2008-03-15
EP1696780B1 (en) 2008-03-05
WO2005058123A1 (en) 2005-06-30
DE10355343B3 (en) 2005-04-07
US20070056613A1 (en) 2007-03-15
PL1696780T3 (en) 2008-06-30

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