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EP1699340B1 - Lave-vaisselle ayant un mode a pompe intermediaire - Google Patents

Lave-vaisselle ayant un mode a pompe intermediaire Download PDF

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Publication number
EP1699340B1
EP1699340B1 EP04804765.8A EP04804765A EP1699340B1 EP 1699340 B1 EP1699340 B1 EP 1699340B1 EP 04804765 A EP04804765 A EP 04804765A EP 1699340 B1 EP1699340 B1 EP 1699340B1
Authority
EP
European Patent Office
Prior art keywords
wash
dishwasher
pump
during
drain pump
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.)
Expired - Lifetime
Application number
EP04804765.8A
Other languages
German (de)
English (en)
Other versions
EP1699340B2 (fr
EP1699340A1 (fr
Inventor
Rüdiger EIERMANN
Helmut Jerg
Ernst Stickel
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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
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Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL04804765T priority Critical patent/PL1699340T5/pl
Publication of EP1699340A1 publication Critical patent/EP1699340A1/fr
Application granted granted Critical
Publication of EP1699340B1 publication Critical patent/EP1699340B1/fr
Publication of EP1699340B2 publication Critical patent/EP1699340B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps
    • 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
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4225—Arrangements or adaption of recirculation or discharge pumps
    • 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 invention relates to a method for operating a dishwasher with at least one rinsing container, a circulating pump for conveying rinsing liquid to at least one spraying device for loading rinsing items to be cleaned stored in the rinsing container, a rinsing pump for pumping rinsing liquid out of the dishwasher and having at least one Subprogram steps pre-cleaning, cleaning, rinsing and drying of a mixable rinse program.
  • Dishwashers usually have at least one rinsing container and spray devices arranged therein, wherein the spray devices are charged with the rinsing liquid conveyed by a circulating pump in order to apply rinsing liquid to the rinsing products stored in the rinsing container.
  • a program control unit which can be assembled, for example, from the partial program steps pre-cleaning, cleaning, rinsing and drying.
  • the items to be cleaned can also include heavily soiled pots, pans or cooking utensils made of stainless steel, enamel, jenaglas or iron, the surfaces of which are often covered with burnt-in food residues.
  • the burnt-in food residues usually consist of partially burnt starch, fat, protein or fiber residues or residues of food cooked in the pots and pans.
  • Another frequently occurring type of soiling are limescale edges or limestone layers adhering to the surfaces of the items to be washed.
  • the known methods for operating dishwashers have the disadvantage that heavy soiling of the type mentioned above is not or only insufficiently removed from the items to be washed.
  • a dishwashing machine with a tub and a suds pump for pumping rinse liquor into a spray arm.
  • a dirt collector is provided to remove dirt from the rinsing.
  • the dirt is separated under the action of a centrifugal force from the rinse liquor and passed a sample of the rinse liquor with high dirt content on a Schmutzabtrennkanal, whose upper end wall is formed by a filter screen. While water enters the lower tub area through the filter screen, the dirt in the separation channel remains and settles in a collecting area. If a pressure in the collection area exceeds a predetermined limit indicating an added filter screen, a drain pump is energized to clean the screen. The drain pump sucks lye with high dirt content from the collection area and pumps it to a drain.
  • the present invention is therefore based on the object to provide a method with which it is possible to operate a dishwasher so that even heavy dirt, for example in pots, pans and cooking utensils are removed from the dishes.
  • Another object of the present invention is to design the washing program sequence of a dishwasher so that even with heavy amounts of flushing residues at the end of the wash program, the removed food particles are removed from the dishwasher.
  • a method for operating a dishwasher with at least one rinsing container, a circulating pump for conveying rinsing liquid to at least one spraying device for loading rinsing items to be cleaned stored in the rinsing container, a rinsing pump for pumping rinsing liquid out of the dishwasher and having one at least from the partial program steps pre-cleaning, cleaning, rinsing and drying composable rinse program, wherein during a partial program step, at least temporarily, the drain pump is activated.
  • the method according to the invention makes it possible, especially during the cleaning phases of the washing program, to remove the accumulated rinsing residues early from the rinsing liquid and to remove them from the dishwasher.
  • the rinsing liquor is thereby relieved of rinsing residues, in particular in heavily soiled items, which improves the cleaning performance of the dishwasher.
  • the method according to the invention causes the removed food particles to be removed from the dishwasher even in the case of heavy soiling of the items to be washed at the end of the washing program.
  • a further advantage of the present invention is that the energy required for the operation of the dishwashing machine is reduced due to the avoidance of perturbation-related impairments in the circulation of the rinsing liquid and the reduction of the total running time of the rinsing program.
  • the rinsing liquid is mixed with cleaning agent or rinse aid right at the beginning of a partial program step.
  • the food residue surface to be removed is already wetted with an alkaline solution at the beginning of the rinsing operation, before a surface resistant to cleaning agents can be formed on the food residues by absorption of clear water.
  • the rinsing liquid in particular after the intermediate pumping operation of the rinse pump, is temporarily or continuously added to cleaning agent or rinse aid during a partial program step.
  • the temporary or continuous addition of cleaning agent or rinse aid ensures that, even after the performance of an intermediate pumping operation in which the rinsing liquid is partly conveyed out of the dishwasher via the rinsing pump, a sufficient concentration of cleaning or rinsing fluid is achieved for the further course of the respective subprogram step Rinse aid is present in the rinse liquid.
  • a similar effect can be achieved if the cleaning agent and / or the rinse aid of the rinsing liquid is preferably added in the form of a slowly dissolving tablet or a so-called tab, so that the cleaning agent or rinse aid of the rinsing liquid is continuously added during a partial program step.
  • the slow and continuous supply of cleaning agent or rinse aid ensures that after the Abpumpvor réellen the intermediate pumping in the further course of the rinse, the concentration of cleaning or rinse aid in the rinse is rebuilt.
  • a simultaneous operation of the circulation pump and the drain pump is at least temporarily carried out during a partial program step.
  • the spraying devices are charged with rinsing liquid and thereby collected the already detached from the items to be washed flushing residues at the bottom of the washing.
  • the drain pump By operating the drain pump, the rinsing residues are conveyed out of the dishwasher together with a part of the rinsing liquid.
  • a type of floating operation is carried out, in which the flushing residues are collected in the sump at the bottom of the washing container and then via the suds pump in the intermediate pumping operation from the dishwasher to get promoted.
  • an upper sprayer for an upper rack and a lower sprayer for an upper rack may be provided.
  • the lower sprayer can be operated to collect the flushing residues through targeted Spülillonkeitsstrahlen in the sump.
  • fresh water is supplied to the rinsing fluid circuit at least temporarily by opening a filling valve during a partial program step.
  • the opening of the filling valve for the supply of fresh water can be carried out at least temporarily even during operation of the circulation pump. This can be prevented, for example, that the Spülillonkeitsmenge is too low in the course of the relevant part program step, especially after a Swisspump Lust the drain pump.
  • a particularly good rinsing result can be achieved if after each partial program step with rinsing liquid insert a substantially complete rinsing liquid change is made. This can be accomplished, for example, by discharging the rinsing liquid essentially completely from the dishwasher via the suds pump at the end of a subprogram step and supplying fresh water at the beginning of a subsequent subprogram step with a rinsing liquid insert.
  • a comminution device for comminuting flushing residues is activated at least temporarily during operation of the drain pump. After the flushing residues have accumulated in the floating operation, as described above, in the sump, the food particles are there crushed using the crushing device and pumped through the drain pump from the dishwasher. Thereby Larger flushing residues can also be crushed and transported out of the dishwasher via the drain pump and the sewer line.
  • a dishwasher which is able to carry out the method according to the invention is preferably equipped with at least two spray devices which can be charged simultaneously or alternately with rinsing fluid from the circulation pump. Furthermore, it is advantageous if the dishwasher a comminution device for comminution of flushing residues, which is at least temporarily activated during a partial program step.
  • FIG. 1 a diagram illustrating the operation of the circulation pump and the insects matterss the drain pump in a method for operating a dishwasher according to a preferred embodiment of the present invention
  • FIG. 2 a schematic representation of a part of in FIG. 1 shown method of operating a dishwasher according to a preferred embodiment of the present invention.
  • FIG. 1 1 is a diagram showing the operation of the circulation pump and the intermediate pumping operation of the suds pump in a method of operating a dishwasher of the present invention according to a first preferred embodiment.
  • the time t is plotted on the X-axis and the temperature of the rinsing liquid in ° C on the Y-axis.
  • the diagram of FIG. 1 further includes a curve U, which represents the time course of the activity of the circulation pump in the course of the washing program according to the invention in a preferred embodiment. This curve U can also be found in the implementation of the intermediate pumping operation Z.
  • the wash program of this embodiment comprises three sub-program steps, such as pre-cleaning, cleaning and rinsing / drying
  • the individual part program steps can be divided into several subsections.
  • the pre-cleaning subprogram step is subdivided into three subsections V 1 , V 2 , V 3 and the subprogram step rinse / dry into two subsections K 1 and K, wherein the subprogram step cleaning comprises only one section R 1 .
  • the first subsection V 1 of the preprogramming subprogram step begins with the introduction of fresh water into the dishwasher, wherein the fresh water is immediately mixed with cleaning agent to produce a rinsing eye.
  • the rinsing liquid is first heated in the course of the first subsection V 1 to a temperature of about 50 ° C and heated in the course of the rinse program to a temperature of up to 70 ° C.
  • the circulation pump during the entire subsection V 1 in operation to supply the spray devices in the washing of the dishwasher with pressurized flushing liquid.
  • the remaining subsections V 2 , V 3 , R 1 , K 1 , K 2 have a very similar to the first subsection V 1 course and differ only in their duration.
  • one or more intermediate pumping operations may be carried out according to the method of the invention. The intermediate pumping operation may take place at any time in the subsection of the subprogram step and during the operation U of the circulating pump.
  • the suds pump is activated at least temporarily in order to convey the rinsing residues accumulated in the sump at the bottom of the rinsing container during the rinsing operation, and thus to achieve the effects described above.
  • FIG. 2 is a schematic representation of a subsection V 1 , V 2 , V 3 , R 1 , K 1 or K 2 of in FIG. 1 illustrated method for operating a dishwasher according to a preferred embodiment of the present invention.
  • a subsection V 1 , V 2 , V 3 , R 1 , K 1 or K 2 of a subprogram step is subdivided into the three operating modes, the idle mode, the intermediate pump mode and the idle pump mode.
  • the rinsing residues removed from the items to be washed are collected in the sump at the bottom of the rinsing container.
  • the rinsing residues are transported out of the sump by temporarily activating the suds pump from the dishwasher and in the pumping mode, the rinsing liquid is substantially completely pumped out of the dishwasher.
  • the operation of the circulation pump, the drain pump, the spraying devices and the comminution device is characterized by a crossbar in the respective row of a matrix consisting of the vertical bars for subdivision of subsections mode of flow, intermediate pumping mode and empty pumping mode and horizontal lines representing the operation of each Circulation pump, the drain pump of the separate spray devices and the crushing device is formed.
  • a bar in the line of the circulation pump indicates the operation of the circulation pump and the length of the bar corresponds analogously to the duration of the operation of the circulation pump and thus the circulation operation during the respective subsections of the flow mode, intermediate pumping mode and empty pumping mode.
  • a bar in the line of the drain pump indicates the operation of the drain pump and the length of the bar corresponds to the duration of the operation of the circulation pump and thus the Abpump ists during the subsections concerned intermediate pumping mode and empty pumping mode.
  • a bar in the line of the separate spraying devices indicates the operation of the spraying devices and the length of the bar corresponds to the duration of the operation of the separate spraying devices and thus the loading of the dishes with washing liquid during the subsection concerned Intermediate pumping mode.
  • a bar in the line of the comminution device characterizes the operation of the comminution device and the length of the bar corresponds to the duration of the operation of the comminution device and thus the comminution of flushing residues during the respective subsections intermediate pumping mode and empty pumping mode.
  • FIG. 2 it can be seen that during the subsections mode of operation, intermediate pumping mode and idle pumping mode, the circulating pump is essentially in continuous operation.
  • the circulating pump and thus the spraying devices By operating the circulating pump and thus the spraying devices, the dishwashing residues distributed in the dishwasher are gathered in the pump pot of the dishwasher during the mode of operation.
  • the circulation pump and the drain pump are at least temporarily activated simultaneously.
  • flushing residues together with a part of the flushing liquid are conveyed out of the dishwasher via the drain pump, which brings about the advantages described above.
  • the separate spray devices are separated and operated alternately to assist in collecting flushing residues in the sump at the bottom of the wash tub.
  • the comminuting device is activated at least temporarily during operation of the suds pump in order to comminute the flushing residues accumulated in the sump at the bottom of the sump and thus better to be able to be conveyed out of the dishwashing machine.
  • the drain pump is in operation in order to convey the washing liquid completely out of the dishwasher at the end of the respective partial program step or lower section. The essentially complete replacement of the rinsing liquor between the partial program steps or between the subsections of the partial program steps improves the cleaning performance of the dishwasher.

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)

Claims (9)

  1. Procédé d'exploitation d'un lave-vaisselle avec au moins une cuve de lavage, une pompe de recirculation pour déplacer le liquide de lavage vers au moins un dispositif de pulvérisation afin d'asperger la vaisselle à nettoyer située dans la cuve de lavage, une pompe lessive afin de pomper le liquide de lavage du lave-vaisselle et avec un programme de lavage susceptible de se composer au moins des étapes de programme partielles prélavage (V1, V2, V3), lavage (R1), rinçage (K1, K2) et séchage, dans lequel la pompe lessive est au moins activée par intermittence durant une étape de programme partielle (V1, V2, V3, R1, K1, K2), caractérisé en ce que l'activation au moins par intermittence de la pompe lessive exécute un pompage intermédiaire dans lequel des résidus de rinçage qui se sont accumulés dans une cuvette de pompe située sur le sol de la cuve de lavage, où ils peuvent absorber un produit de nettoyage dissous dans le liquide de lavage, sont évacués du lave-vaisselle.
  2. Procédé selon la revendication 1, dans lequel du produit de nettoyage resp. du produit de rinçage est adjoint au liquide de lavage au début d'une étape de programme partielle (V1, V2, V3, R1, K1, K2).
  3. Procédé selon la revendication 1 ou 2, dans lequel du produit de nettoyage resp. du produit de rinçage est adjoint par intermittence ou en continu au liquide de lavage après l'actionnement de la pompe lessive durant une étape de programme partielle (V1, V2, V3, R1, K1, K2).
  4. Procédé selon l'une des revendications précédentes, dans lequel le produit de nettoyage et/ou de rinçage est de préférence adjoint au liquide de lavage sous la forme d'une tablette à dissolution lente resp. d'un tab, de sorte que le produit de nettoyage resp. le produit de rinçage est adjoint au liquide de lavage en continu durant une étape de programme partielle (V1, V2, V3, R1, K1, K2).
  5. Procédé selon l'une des revendications précédentes, dans lequel un actionnement concomitant de la pompe de recirculation et de la pompe lessive est entrepris du moins par intermittence durant une étape de programme partielle (V1, V2, V3, R1, K1, K2).
  6. Procédé selon l'une des revendications précédentes, dans lequel au moins deux dispositifs de pulvérisation sont prévus dans la cuve de lavage, lesquels sont actionnés au moins par intermittence en même temps ou à tour de rôle durant une étape de programme partielle (V1, V2, V3, R1, K1, K2).
  7. Procédé selon l'une des revendications précédentes, dans lequel de l'eau fraiche est adjointe au moins par intermittence durant, une étape de programme partielle (V1, V2, V3, R1, K1, K2).
  8. Procédé selon l'une des revendications précédentes, dans lequel le liquide de lavage est essentiellement évacué de manière intégrale du lave-vaisselle à la fin d'une étape de programme partielle (V1, V2, V3, R1, K1, K2) via la pompe lessive.
  9. Procédé selon l'une des revendications précédentes, dans lequel un dispositif de broyage est activé du moins par intermittence durant l'actionnement de la pompe lessive afin de broyer les résidus de lavage.
EP04804765.8A 2003-12-16 2004-12-10 Lave-vaisselle ayant un mode a pompe intermediaire Expired - Lifetime EP1699340B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04804765T PL1699340T5 (pl) 2003-12-16 2004-12-10 Zmywarka do naczyń z pracą pośredniego pompowania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10358970A DE10358970A1 (de) 2003-12-16 2003-12-16 Geschirrspülmaschine mit Zwischenpumpbetrieb
PCT/EP2004/053396 WO2005058122A1 (fr) 2003-12-16 2004-12-10 Lave-vaisselle ayant un mode a pompe intermediaire

Publications (3)

Publication Number Publication Date
EP1699340A1 EP1699340A1 (fr) 2006-09-13
EP1699340B1 true EP1699340B1 (fr) 2014-02-26
EP1699340B2 EP1699340B2 (fr) 2020-06-17

Family

ID=34683393

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04804765.8A Expired - Lifetime EP1699340B2 (fr) 2003-12-16 2004-12-10 Lave-vaisselle ayant un mode a pompe intermediaire

Country Status (5)

Country Link
EP (1) EP1699340B2 (fr)
DE (1) DE10358970A1 (fr)
ES (1) ES2451493T5 (fr)
PL (1) PL1699340T5 (fr)
WO (1) WO2005058122A1 (fr)

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DE10222215A1 (de) † 2002-05-16 2003-12-04 Electrolux Home Prod Corp Verfahren zum Betreiben einer Geschirrspülmaschine

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EP1699340B2 (fr) 2020-06-17
WO2005058122A1 (fr) 2005-06-30
DE10358970A1 (de) 2005-07-21
ES2451493T5 (es) 2021-01-18
EP1699340A1 (fr) 2006-09-13
ES2451493T3 (es) 2014-03-27
PL1699340T3 (pl) 2014-07-31

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