EP2756789B1 - Verfahren zum Spülen von Geschirr - Google Patents

Verfahren zum Spülen von Geschirr Download PDF

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Publication number
EP2756789B1
EP2756789B1 EP14156731.3A EP14156731A EP2756789B1 EP 2756789 B1 EP2756789 B1 EP 2756789B1 EP 14156731 A EP14156731 A EP 14156731A EP 2756789 B1 EP2756789 B1 EP 2756789B1
Authority
EP
European Patent Office
Prior art keywords
washing
washing liquid
dishes
compartment
input
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.)
Not-in-force
Application number
EP14156731.3A
Other languages
English (en)
French (fr)
Other versions
EP2756789A3 (de
EP2756789A2 (de
Inventor
Domenico Marini
Silvia Barus
Gianluca Benedetto
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.)
Whirlpool EMEA SpA
Original Assignee
Whirlpool EMEA SpA
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
Priority claimed from IT000095A external-priority patent/ITPR20120095A1/it
Priority claimed from IT000096A external-priority patent/ITPR20120096A1/it
Application filed by Whirlpool EMEA SpA filed Critical Whirlpool EMEA SpA
Publication of EP2756789A2 publication Critical patent/EP2756789A2/de
Publication of EP2756789A3 publication Critical patent/EP2756789A3/de
Application granted granted Critical
Publication of EP2756789B1 publication Critical patent/EP2756789B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0026—Rinsing phases
    • 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
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0028—Washing phases
    • 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
    • A47L15/0007—Washing phases
    • 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
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0044—Operation time reduction
    • 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
    • A47L15/50—Racks ; Baskets
    • 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
    • A47L2301/00—Manual input in controlling methods of washing or rinsing machines for crockery or tableware, i.e. information entered by a user
    • A47L2301/04—Operation mode, e.g. delicate washing, economy washing, reduced time, sterilizing, water softener regenerating, odor eliminating or service
    • 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
    • A47L2301/00—Manual input in controlling methods of washing or rinsing machines for crockery or tableware, i.e. information entered by a user
    • A47L2301/08—Other manual input
    • 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
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/03—Water recirculation, e.g. control of distributing valves for redirection of water flow
    • 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
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/06—Water heaters
    • 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
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/30—Regulation of machine operational steps within the washing process, e.g. performing an additional rinsing phase, shortening or stopping of the drying phase, washing at decreased noise operation conditions
    • 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
    • A47L2601/02—Pressurised cleaning liquid delivered by a pump

Definitions

  • the subject of the present invention is a method of washing dishes by means of a dishwasher.
  • a dishwasher comprising a plurality of racks positioned one above another and located in a washing compartment.
  • the user In order to perform the washing of the dishes the user arranges them by distributing them over the various racks. During washing the liquid on the bottom of the washing compartment is taken by a pump and made to travel through two rotating sprayers equipped with holes which direct the jets of water towards the dishes.
  • An object of the present invention is to make available to a user the possibility of carrying out specific washing cycles so as to permit better flexibility of use.
  • Figures 1-4 show examples of washing cycles according to the present invention and show a qualitative pattern of temperature as a function of time (expressed in minutes and shown on the horizontal axis).
  • the subject of the present invention is a method of washing dishes by means of a dishwasher.
  • This dishwasher comprises a plurality of racks placed in a washing compartment. These racks are intended to support the dishes during the wash.
  • the dishwasher comprises a first and a second rack, the second rack being situated above the first rack.
  • the first rack is the lowest rack of the dishwasher.
  • the second rack is typically the second rack from the bottom.
  • the dishwasher also comprises a first and a second sprayer. The first sprayer is positioned below the first rack.
  • the second sprayer is positioned between the first and the second rack.
  • the method provides for the dishwasher selecting the washing parameters according to at least:
  • the method furthermore provides for performing the washing.
  • Selecting said second input makes the cycle identified by the first input more intensive or faster or more economical (in terms of washing liquid and energy consumption).
  • the cycle becomes faster or more economical or more intensive depending on the type of cycle selected with the first input.
  • the dishes to be washed are positioned on a specific rack selected through the second input.
  • the cycle will be reparametrized to allow optimum washing of the dishes in the selected rack.
  • the dishwasher will concentrate its resources on carrying out the washing of the dishes placed in the selected rack, neglecting the wash, however, in other areas of the washing compartment.
  • the second input preferably makes it possible to select one rack at a time. The second input therefore makes it possible to select one washing area inside the washing compartment.
  • the step of performing the wash therefore provides for performing a wash wherein the dishes are positioned on only one of the racks of the dishwasher.
  • the first input can be selected from a predetermined list of washing cycles.
  • This predetermined list comprises a fast cycle (in which speed of execution of the cycles is privileged) and an intensive cycle (which will have a longer duration than the fast cycle and which constitutes a vigorous cycle to optimise the cleaning of the dishes).
  • the predetermined list can comprise a normal cycle (a cycle which allows a compromise between the two indicated above).
  • the intensive cycle is the most vigorous selectable among those selectable in the predetermined list.
  • the first input can be selectable using a first dedicated selector (for example a knob or keys).
  • a first dedicated selector for example a knob or keys.
  • said introduction of said second input causes: an increase in the maximum temperature reached by the washing liquid and/or a lengthening of the washing cycle time and/or an increase in particular steps or sub-steps of the dispensing pressure to the sprayers (even in this case the variations are to be considered as referring to a similar cycle without the second input being specified).
  • the step of performing the wash comprises in turn a plurality of steps.
  • a first step (indicated by the reference number 11 in figure 1 ) provides for performing a pre-wash comprising the sub-steps of:
  • the step of performing the pre-wash is carried out without performing a heating of the washing liquid; opportunely the pre-wash is carried out without the use of detergents in the washing liquid; opportunely during the pre-wash the duration of the step of spraying the dishes is comprised between 9 and 12 minutes.
  • a second step provides for performing a removal of dirt from the dishes. This comprises the sub-steps of:
  • a third step provides for performing a first rinse of the dishes (see reference 13); opportunely this step provides for the use of network water, opportunely the network water used during the first rinse is not heated by the use of a heating element located in the washing compartment (as it enters the compartment which is still hot, it does however undergo heating nevertheless).
  • a fourth step provides for performing a second heating of the dishes (see reference 14) comprising the steps of:
  • the cycle of figure 1 is particularly effective when it is necessary to wash only a few dishes. In this way, without having to wait for the full load, it is possible to wash the cutlery and plates used for cooking for rapid reuse, avoiding the formation of bad odours.
  • the dishes are sprayed for over 75% of the time by the first sprayer.
  • the second sprayer is used only sporadically to dissolve the detergent better in the dispenser and to assist the washing of any cutlery positioned vertically in the first rack.
  • spraying is carried out for most of the time by the second sprayer, possibly alternating with the third sprayer (which as described above is located above the second rack). The first sprayer is not used.
  • spraying is carried out by alternating between the second and the third sprayer.
  • the first sprayer is not used.
  • the step of performing the wash comprises a plurality of steps as described below.
  • a first step provides for removing the dirt from the dishes and this first step comprises the sub-steps of:
  • a second step provides for rinsing the dishes and in turn comprises the sub-steps of:
  • the cycle of figure 2 allows a significant time saving when it is necessary to wash only a few dishes. In this way, without having to wait for the full load, it is possible to wash the cutlery and plates used for cooking for rapid reuse, avoiding the formation of bad odours.
  • the cycle of figure 3 is performed when the intensive cycle indicated above is selected as first input and the lower rack or the third rack (always assuming it is present) is selected as second input.
  • the cycle of figure 4 is performed when the intensive cycle indicated above is selected as first input and the second rack from the bottom of the dishwasher is selected as second input.
  • the selection of said second input causes a lengthening of the intensive cycle comprised between 10% and 50%.
  • the selection of said second input causes furthermore an increase in the maximum temperature of the washing cycle (preferably this increase is comprised between 3 °C and 7 °C).
  • This increase is comprised between 3 °C and 7 °C.
  • the step of performing the wash comprises a plurality of steps described below.
  • a first step provides for removing the dirt from the dishes and this first step comprises the sub-steps of:
  • a second step provides for performing a first rinse of the dishes comprising the steps of:
  • a third step provides for carrying out a second rinse of the dishes and in turn comprises the steps of:
  • step of removing the dirt from the dishes is preceded at least by the step of performing a pre-wash (see reference 36) in turn comprising:
  • the step of performing the first rinse provides for heating the washing liquid placed in the compartment until the sensor detects a predetermined target temperature greater than or equal to 60 °C (see reference 32b).
  • this heating is followed by a maintenance of the temperature of the washing liquid in a first predetermined range containing the predetermined target temperature (see reference 32d); opportunely said temperature maintenance has a duration comprised between 4 and 6 minutes.
  • the step of performing the second rinse provides for heating a washing liquid placed in the compartment at least until a sensor detects a predetermined target temperature comprised between 65 °C and 75 °C (see reference 33d).
  • this heating is followed by a maintenance of the temperature of the washing liquid in a predetermined range containing the predetermined target temperature (see reference 33e); opportunely said temperature maintenance has a duration of less than 1 minute; preferably it is about 30 seconds.
  • the dishes are sprayed for over 75% of the time (preferably for 100%) by the first sprayer.
  • the second sprayer is not used.
  • spraying is carried out for most of the time by the second sprayer, possibly alternating with the third sprayer (which as described above is located above the second rack).
  • the first sprayer is not used.
  • spraying is carried out by performing an alternation between the second and the third sprayer.
  • the first sprayer is not used.
  • the present invention enables many advantages to be achieved.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Claims (4)

  1. Verfahren zum Spülen von Geschirr mittels eines Geschirrspülers, der eine Vielzahl von in einem Spülraum platzierten Geschirrkörben umfasst und dazu bestimmt ist, das Geschirr während des Spülgangs zu unterstützen, wobei der Geschirrspüler einen Vorgang durchführt, der die Schritte umfasst:
    a) Auswählen der Spülparameter nach zumindest:
    - einer ersten Eingabe betreffend die Art des durchzuführenden Zyklus, wobei die erste Eingabe aus einer diskreten Liste auswählbar ist;
    - einer zweiten Eingabe betreffend welchen Geschirrkorb, auf dem das zu spülende Geschirr positioniert wird;
    b) Durchführen des Spülgangs
    die erste Eingabe kann aus einer vorbestimmten Liste von Spülzyklen ausgewählt werden, die einen schnellen Zyklus und einen intensiven Zyklus umfasst;
    dadurch gekennzeichnet, dass die Einführung der zweiten Eingabe, falls die erste Eingabe des schnellen Zyklus ausgewählt wird, den Spülzyklus verkürzt; die Einführung der zweiten Eingabe, falls die erste Eingabe des intensiven Zyklus ausgewählt wird, die maximale Temperatur erhöht, die durch die Waschflüssigkeit erreicht wird, den Spülzyklus verlängert und zumindest in vorbestimmten Zeiten des Spülzyklus den Waschflüssigkeitsausgabedruck im Raum erhöht.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Angabe der zweiten Eingabe den durch die erste Eingabe identifizierten Spülzyklus intensiver, oder schneller oder effizienter bezüglich der Waschflüssigkeit und des Energieverbrauchs macht.
  3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Schritt des Durchführens des Spülgangs das Durchführen eines Spülgangs vorsieht, wobei das Geschirr nur auf einem der Geschirrkörbe positioniert wird.
  4. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Durchführen des Spülschritts die Schritte umfasst:
    a) Durchführen eines Vorspülgangs, umfassend die Unterschritte von:
    - Laden einer Waschflüssigkeit in den Spülraum;
    - Besprühen des Geschirrs, das im Spülraum platziert ist, indem die Waschflüssigkeit aus dem Spülraum genommen wird;
    - Entladen der Waschflüssigkeit aus dem Spülraum;
    b) Durchführen der Entfernung des Schmutzes vom Geschirr, umfassend die Unterschritte:
    - Laden einer Waschflüssigkeit in den Spülraum;
    - Erwärmen der Waschflüssigkeit, bis ein Sensor eine vorbestimmte Zieltemperatur von weniger als oder gleich wie 51 °C erfasst, wobei der Sensor im Spülraum positioniert wird, wobei der Unterschritt zumindest teilweise vom Unterschritt des Besprühens des im Spülraum platzierten Geschirrs, indem die Waschflüssigkeit vom Boden des Spülraums genommen wird, begleitet wird;
    - Durchführen einer Temperaturerhaltung der Waschflüssigkeit in einem vorbestimmten Bereich, der die vorbestimmte Zieltemperatur enthält, wobei der Unterschritt zumindest teilweise vom Unterschritt des Sprühens des im Spülraum platzierten Geschirrs, indem die Waschflüssigkeit vom Boden des Spülraums genommen wird, begleitet wird;
    - Entladen der Waschflüssigkeit;
    c) Durchführen einer ersten Ausspülung des Geschirrs;
    d) Durchführen einer zweiten Ausspülung des Geschirrs, umfassend die Schritte von:
    - Laden einer Waschflüssigkeit in den Spülraum;
    - Erwärmen der Waschflüssigkeit, bis ein Sensor erfasst, dass eine vorbestimmte Zieltemperatur von weniger als oder gleich wie 70 °C erreicht wird; der Unterschritt wird zumindest teilweise vom Unterschritt des Besprühens des im Spülraum platzierten Geschirrs, indem die Waschflüssigkeit vom Boden des Spülraums genommen wird, begleitet;
    - Entladen der Waschflüssigkeit.
EP14156731.3A 2012-12-28 2014-02-26 Verfahren zum Spülen von Geschirr Not-in-force EP2756789B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000095A ITPR20120095A1 (it) 2012-12-28 2012-12-28 Metodo di lavaggio di stoviglie
IT000096A ITPR20120096A1 (it) 2012-12-28 2012-12-28 Metodo di rimozione dello sporco da stoviglie

Publications (3)

Publication Number Publication Date
EP2756789A2 EP2756789A2 (de) 2014-07-23
EP2756789A3 EP2756789A3 (de) 2016-01-06
EP2756789B1 true EP2756789B1 (de) 2018-04-04

Family

ID=49767056

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14156731.3A Not-in-force EP2756789B1 (de) 2012-12-28 2014-02-26 Verfahren zum Spülen von Geschirr

Country Status (1)

Country Link
EP (1) EP2756789B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4108150A1 (de) * 2021-06-22 2022-12-28 The Procter & Gamble Company Verfahren zur behandlung von geschirr in einer haushaltsgeschirrspülmaschine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102448862B1 (ko) * 2016-01-05 2022-09-30 엘지전자 주식회사 식기 세척기 및 식기 세척기의 제어방법

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DE3816408A1 (de) * 1988-05-13 1989-11-16 Licentia Gmbh Geschirrspuelmaschine mit einer umsteuervorrichtung
DE19651347C2 (de) * 1996-12-10 2002-11-14 Bsh Bosch Siemens Hausgeraete Verfahren zum Betreiben einer Geschirrspülmaschine
DE19812231A1 (de) * 1998-03-20 1999-09-23 Aeg Hausgeraete Gmbh Geschirrspülmaschine
IT1311444B1 (it) * 1999-11-16 2002-03-12 Eltek Spa Dispositivo di intercettazione del flusso di un fluido, in particolare per macchine di lavaggio di uso domestico.
IT1319915B1 (it) * 2000-02-24 2003-11-12 Merloni Elettrodomestici Spa Macchina lavastoviglie con possibilita' di lavaggio differenziato.
DE102005033345B4 (de) * 2005-07-16 2007-06-28 Electrolux Home Products Corporation N.V. Bedieneinrichtung für eine Geschirrspülmaschine
US8210191B2 (en) * 2008-12-09 2012-07-03 General Electric Company Dishwasher having multi-mode spray arm system

Non-Patent Citations (1)

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None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4108150A1 (de) * 2021-06-22 2022-12-28 The Procter & Gamble Company Verfahren zur behandlung von geschirr in einer haushaltsgeschirrspülmaschine
WO2022271764A1 (en) * 2021-06-22 2022-12-29 The Procter & Gamble Company A method of treating dishware in a domestic automatic dishwashing machine

Also Published As

Publication number Publication date
EP2756789A3 (de) 2016-01-06
EP2756789A2 (de) 2014-07-23

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