EP0291713A1 - Method for washing dishes and domestic dishwasher using said method - Google Patents
Method for washing dishes and domestic dishwasher using said method Download PDFInfo
- Publication number
- EP0291713A1 EP0291713A1 EP88106345A EP88106345A EP0291713A1 EP 0291713 A1 EP0291713 A1 EP 0291713A1 EP 88106345 A EP88106345 A EP 88106345A EP 88106345 A EP88106345 A EP 88106345A EP 0291713 A1 EP0291713 A1 EP 0291713A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rinsing
- cleaning
- dishes
- steam
- programs
- 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.)
- Withdrawn
Links
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
- A47L15/4234—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
- A47L2601/00—Washing methods characterised by the use of a particular treatment
- A47L2601/04—Steam
Definitions
- the invention relates to a method according to the preamble of claim 1 and a household dishwasher for performing this method.
- programs can be selected via a program control device, which programs can be composed of a pre-rinse cycle, cleaning cycle, intermediate rinse cycle, rinse cycle and drying cycle.
- a program control device which programs can be composed of a pre-rinse cycle, cleaning cycle, intermediate rinse cycle, rinse cycle and drying cycle.
- cleaning follows, consisting of the fresh water supply of about six to ten liters of cold water, heating to 55 or 65 ° C and addition of a cleaning agent, circulation of the cleaning liquid and preferably gradual pumping out of part of the cleaning liquid and replacement with cold water, which gradually cools the hot liquor and avoids temperature stress in the dishes.
- the lye is pumped out.
- the intermediate rinsing begins, with cold water in several steps, each consisting of a water inlet of about five to ten liters of fresh water, circulating and pumping, rinsing the loosened dirt particles from the dishes and pumping them out with the water.
- a fresh water quantity of about five to ten liters flows back into the rinse container, to which a rinse aid is added.
- the fresh water mixed with the rinse aid is heated to about 65 to 75 ° C and circulated. Then the pumping takes place and drying begins due to the inherent heat of the dishes and, if necessary, the additional radiant heat of an electric heater.
- the sub-program pre-rinse can be supplemented or replaced by a sub-program pre-cleaning for cookware, pots or the like, this sub-program pre-cleaning from a water supply step for two to five liters Water, a heating step to 30 ° C to 60 ° C, a cleaning agent addition and a circulation of the rinsing liquid by means of the spray device assigned to the cookware, driven at a reduced speed, which has nozzles spraying against the cookware with increased spray pressure, some of which in the other program steps or are completely closable.
- the invention has for its object to improve the known methods for cleaning heavily soiled dishes in household dishwashers.
Landscapes
- Washing And Drying Of Tableware (AREA)
Abstract
Description
Die Erfindnung betrifft ein Verfahren gemäß dem Oberbegriff des Patentanspruches 1 sowie eine Haushalt-Geschirrspülmaschine zur Durchführung dieses Verfahrens.The invention relates to a method according to the preamble of claim 1 and a household dishwasher for performing this method.
Bei den bekannten Haushalt-Geschirrspülmaschinen sind über ein Programmsteuergerät Programme wählbar, die aus Vorspülzyklus, Reinigungszyklus, Zwischenspülzyklus, Klarspülzyklus und Trockenzyklus zusammensetzbar sind. Während des Vorspülens fließen dem Spülbehälter etwa sechs bis zehn Liter Frischwasser zu, das durch die Umwälzpumpe und über Sprüheinrichtungen auf das Geschirr gesprüht und nach einiger Zeit mit den abgelösten Speiserestern abgepumpt wird. Nach dem auch ausblendbaren Vorspülen schließt sich das Reinigen an, bestehend aus der Frischwasserzufuhr von etwa sechs bis zehn Liter Kaltwasser, aus Aufheizen auf 55 oder 65°C und Zugabe eines Reinigungsmittels, aus Umwälzen der Reinigungsflüssigkeit und vorzugsweise stufenweisen Abpumpen eines Teils der Reinigungsflüssigkeit und Ersetzen durch Kaltwasser, wodurch die heiße Lauge allmählich abgekühlt wird und Temperaturspannungen im Geschirr vermieden werden. Am Ende des Reinigungszyklus wird die Lauge abgepumpt. Nach dem Entleeren des Spülbehälters beginnt das Zwischenspülen, dabei werden mit Kaltwasser in mehreren Schritten, bestehend aus jeweils einem Wassereinlaß von etwa fünf bis zehn Liter Frischwasser, Umwälzen und Abpumpen, die gelösten Schmutzteilchen vom Geschirr abgespült und mit dem Wasser abgepumpt. Zu Beginn des nach den Zwischenspülgängen sich anschließenden Klarspülzyklus fließt wieder eine Frischwassermenge von etwa fünf bis zehn Litern dem Spülbehälter zu, der ein Klarspülmittel zudosiert wird. Das mit dem Klarspülmittel versetzte Frischwasser wird auf etwa 65 bis 75°C erwärmt und umgewälzt. Anschließend erfolgt das Abpumpen und es beginnt das Trocknen durch die Eigenwärme des Geschirrs und gegebenenfalls durch die zusätzliche Strahlungswärme einer elektrischen Heizung.In the known household dishwashers, programs can be selected via a program control device, which programs can be composed of a pre-rinse cycle, cleaning cycle, intermediate rinse cycle, rinse cycle and drying cycle. During the pre-rinsing, about six to ten liters of fresh water flow into the rinsing tank Circulation pump and sprayed onto the dishes and then pumped out with the loosened food residues after some time. After the pre-rinsing, which can also be hidden, cleaning follows, consisting of the fresh water supply of about six to ten liters of cold water, heating to 55 or 65 ° C and addition of a cleaning agent, circulation of the cleaning liquid and preferably gradual pumping out of part of the cleaning liquid and replacement with cold water, which gradually cools the hot liquor and avoids temperature stress in the dishes. At the end of the cleaning cycle, the lye is pumped out. After emptying the rinsing container, the intermediate rinsing begins, with cold water in several steps, each consisting of a water inlet of about five to ten liters of fresh water, circulating and pumping, rinsing the loosened dirt particles from the dishes and pumping them out with the water. At the beginning of the rinse cycle that follows after the intermediate rinse cycles, a fresh water quantity of about five to ten liters flows back into the rinse container, to which a rinse aid is added. The fresh water mixed with the rinse aid is heated to about 65 to 75 ° C and circulated. Then the pumping takes place and drying begins due to the inherent heat of the dishes and, if necessary, the additional radiant heat of an electric heater.
Um stark verschmutztes Kochgeschirr, wie Töpfe und Pfannen in einer Haushalt-Geschirrspülmaschine zu reinigen, ist es bekannt, die Kochgeschirre der Einwirkung einer Lösung eines Reinigungsmittels im Wasser mit einer Konzentration von mindestens etwa 2,65 Gramm pro Liter bei etwa 80°C und einem Höchstwert von etwa 99°C während einer Zeitspanne von etwa 75 min bis etwa 180 min auszusetzen, wobei die Kochgeschirre mit auf eine Temperatur von etwa 93°C erhitztem Wasser abgespült werden (DE-OS 21 17 082). Die Anwendung dieses energieaufwendigen Langzeit-Verfahrens ist jedoch nur möglich, wenn die Geschirrkörbe ausschließlich mit unempfindlichem Kochgeschirr beladen werden. Kochgeschirr in einer Menge, die zum wirtschaftlichen Beladen einer Geschirrspülmaschine ausreicht, fällt in der Regel in den durchschnittlichen Haushalten innerhalb begrenzbarer Zeiträume nicht an.In order to clean heavily soiled cookware such as pots and pans in a household dishwasher, it is known to expose the cookware to the action of a solution of a detergent in water with a concentration of at least about 2.65 grams per liter at about 80 ° C and one Suspend maximum value of about 99 ° C for a period of about 75 minutes to about 180 minutes, the dishes being rinsed with water heated to a temperature of about 93 ° C (DE-OS 21 17 082). However, the use of this energy-intensive long-term process is only possible if the crockery baskets are only loaded with insensitive cookware. Cookware in an amount sufficient to economically load a dishwasher is generally not available in the average household within a limited period of time.
Ferner ist bei einem Verfahren zum Reinigen von Geschirr bekannt (DE-OS 33 30 537), daß das Teilprogramm Vorspülen durch ein Teilprogramm Vorreinigen für Kochgeschirr, Töpfe oder dergleichen ergänzbar oder ersetzbar ist, wobei dieses Teilprogramm Vorreinigen aus einem Wasserzulaufschritt für zwei bis fünf Liter Wasser, einem Aufheizschritt auf 30°C bis 60°C, einer Reinigerzugabe und einem Umwälzen der Spülflüssigkeit über die dem Kochgeschirr zugeordnete, mit verminderter Drehzahl angetriebene Sprühvorrichtung besteht, die mit erhöhtem Sprühdruck gegen das Kochgeschirr sprühende Düsen aufweist, welche in den übrigen Programmschritten teilweise oder ganz verschließbar sind.It is also known in a method for cleaning dishes (DE-OS 33 30 537) that the sub-program pre-rinse can be supplemented or replaced by a sub-program pre-cleaning for cookware, pots or the like, this sub-program pre-cleaning from a water supply step for two to five liters Water, a heating step to 30 ° C to 60 ° C, a cleaning agent addition and a circulation of the rinsing liquid by means of the spray device assigned to the cookware, driven at a reduced speed, which has nozzles spraying against the cookware with increased spray pressure, some of which in the other program steps or are completely closable.
Zur Desinfektion des Geschirrs in Geschirrspülmaschinen für Krankenhäuser ist es schließlich bei diesen gewerblichen Maschinen bekannt, zum Desinfizieren heißen Dampf einzusetzen (DE-AS 12 26 248).To disinfect the dishes in dishwashers for hospitals, it is finally known in these commercial machines to use hot steam for disinfecting (DE-AS 12 26 248).
Der Erfindung liegt die Aufgabe zugrunde, die bekannten Verfahren zum Reinigen von stark angeschmutztem Geschirr in Haushalt-Geschirrspülmaschinen zu verbessern.The invention has for its object to improve the known methods for cleaning heavily soiled dishes in household dishwashers.
Die Lösung dieser Aufgabe erfolgt gemäß der Erfindung durch die kennzeichnenden Merkmale des Patentanspruches 1 bzw. der Ansprüche 2 oder 3.This object is achieved according to the invention by the characterizing features of patent claim 1 or claims 2 or 3.
Nach dem erfindungsgemäßen Reinigungsverfahren brauchen keine mechanischen Hilfsmittel zum Reinigen des Geschirrs eingesetzt werden. Auch auf umweltbelastende chemische Reinigungsmittelzusätze kann, neben dem üblichen Reiniger und Klarspüler verzichtet werden. Besonders vorteilhaft ist es, wenn im unteren Geschirrkorb eine besondere Abstellfläche für die stark angeschmutzten Kochtöpfe vorgesehen ist. Die mit der Öffnung nach unten abgestellten Kochtöpfe werden dann, ohne daß das übrige, gegebenenfalls feinere Geschirr nachteilig behandelt wird, aus gesonderten Düsen mit Wasserdampf beaufschlagt. Dadurch werden die angetrockneten Speisereste aufgeweicht und können danach im ablaufenden wieteren Spülprogramm sauber abgetragen werden.According to the cleaning method according to the invention, no mechanical aids need to be used for cleaning the dishes. In addition to the usual detergent and rinse aid, it is also possible to dispense with environmentally harmful chemical detergent additives. It is particularly advantageous if a special storage surface for the heavily soiled saucepans is provided in the lower crockery basket. The pots placed with the opening facing downwards are then subjected to water vapor from separate nozzles without the remaining, possibly finer dishes being treated disadvantageously. As a result, the dried-on food remnants are softened and can then be removed in the subsequent washing program.
Claims (3)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3716952 | 1987-05-20 | ||
DE19873716952 DE3716952A1 (en) | 1987-05-20 | 1987-05-20 | METHOD FOR CLEANING DISHES AND DOMESTIC DISHWASHER FOR CARRYING OUT THE METHOD |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0291713A1 true EP0291713A1 (en) | 1988-11-23 |
Family
ID=6327985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88106345A Withdrawn EP0291713A1 (en) | 1987-05-20 | 1988-04-21 | Method for washing dishes and domestic dishwasher using said method |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0291713A1 (en) |
DE (1) | DE3716952A1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0468517A1 (en) * | 1990-07-27 | 1992-01-29 | Daikin Industries, Limited | Method and apparatus for washing dishes |
EP0487474A1 (en) * | 1990-11-23 | 1992-05-27 | Aktiebolaget Electrolux | Method for transporting liquid in a dishwasher and a device for accomplishing the method |
EP0593876A1 (en) * | 1992-10-08 | 1994-04-27 | Bosch-Siemens HausgerÀ¤te GmbH | Apparatus for rinsing dishes |
US7331356B2 (en) | 2003-06-17 | 2008-02-19 | Whirlpool Corporation | Multiple wash zone dishwater |
WO2008107636A1 (en) * | 2007-03-07 | 2008-09-12 | Reckitt Benckiser (Uk) Limited | A free standing treatment device for a dishwasher |
US7475696B2 (en) | 2003-06-17 | 2009-01-13 | Whirlpool Corporation | Dishwasher having valved third-level sprayer |
US7523758B2 (en) | 2003-06-17 | 2009-04-28 | Whirlpool Corporation | Dishwasher having rotating zone wash sprayer |
US7909936B2 (en) | 2008-12-19 | 2011-03-22 | Whirlpool Corporation | Dishwasher final steam rinse method |
US9119517B2 (en) | 2011-10-17 | 2015-09-01 | Whirlpool Corporation | Dishwasher having spray manifold and method for controlling same |
US9259138B2 (en) | 2010-12-07 | 2016-02-16 | Whirlpool Corporation | Dishwasher with auxiliary spray system having removable sprayers |
US9272314B2 (en) | 2008-12-19 | 2016-03-01 | Whirlpool Corporation | Dishwasher steam purge method |
US10076224B2 (en) | 2014-01-20 | 2018-09-18 | Whirlpool Corporation | Dishwasher |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4214188A1 (en) * | 1992-04-30 | 1993-11-04 | Licentia Gmbh | Cleaning of badly soiled dishes in dishwasher - using intensive programme selectable in addition to normal programmable modes, such as pre-rinsing and cleaning modes, and introduced in form of softening mode directly before or after cleaning mode |
DE4233936C2 (en) * | 1992-10-08 | 1996-02-01 | Bosch Siemens Hausgeraete | Process for washing dishes |
DE4414347B4 (en) * | 1994-04-25 | 2007-07-05 | BSH Bosch und Siemens Hausgeräte GmbH | Method for operating a program-controlled dishwasher |
DE29607515U1 (en) * | 1996-04-25 | 1997-08-21 | AEG Hausgeräte GmbH, 90429 Nürnberg | Dishwasher with a washing compartment for arranging items to be cleaned |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE512274C (en) * | 1928-02-02 | 1930-11-08 | Heinrich Schloemann | Dish washing and drying device |
US2664094A (en) * | 1947-08-01 | 1953-12-29 | Spragins John Harris | Dishwasher |
GB775975A (en) * | 1952-10-02 | 1957-05-29 | Simplex Electric Co Ltd | Improvements relating to dish-washing apparatus |
US3063459A (en) * | 1959-05-25 | 1962-11-13 | Gen Motors Corp | Dishwashing machine |
US3549294A (en) * | 1970-03-25 | 1970-12-22 | Hobart Corp | Automatic dishwashing machine with soak cycle |
EP0022879A1 (en) * | 1979-07-18 | 1981-01-28 | Elpag Ag Chur | Dish washer |
US4279384A (en) * | 1978-07-05 | 1981-07-21 | Sharp Kabushiki Kaisha | Steam generation in a dishwasher |
US4366005A (en) * | 1978-01-11 | 1982-12-28 | Sharp Kabushiki Kaisha | Steam washing in a dishwasher |
-
1987
- 1987-05-20 DE DE19873716952 patent/DE3716952A1/en not_active Ceased
-
1988
- 1988-04-21 EP EP88106345A patent/EP0291713A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE512274C (en) * | 1928-02-02 | 1930-11-08 | Heinrich Schloemann | Dish washing and drying device |
US2664094A (en) * | 1947-08-01 | 1953-12-29 | Spragins John Harris | Dishwasher |
GB775975A (en) * | 1952-10-02 | 1957-05-29 | Simplex Electric Co Ltd | Improvements relating to dish-washing apparatus |
US3063459A (en) * | 1959-05-25 | 1962-11-13 | Gen Motors Corp | Dishwashing machine |
US3549294A (en) * | 1970-03-25 | 1970-12-22 | Hobart Corp | Automatic dishwashing machine with soak cycle |
US4366005A (en) * | 1978-01-11 | 1982-12-28 | Sharp Kabushiki Kaisha | Steam washing in a dishwasher |
US4279384A (en) * | 1978-07-05 | 1981-07-21 | Sharp Kabushiki Kaisha | Steam generation in a dishwasher |
EP0022879A1 (en) * | 1979-07-18 | 1981-01-28 | Elpag Ag Chur | Dish washer |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0468517A1 (en) * | 1990-07-27 | 1992-01-29 | Daikin Industries, Limited | Method and apparatus for washing dishes |
US5427127A (en) * | 1990-07-27 | 1995-06-27 | Daikin Industries, Ltd. | Method and apparatus for washing dishes, sticking inhibitor and rinsing assistant |
EP0487474A1 (en) * | 1990-11-23 | 1992-05-27 | Aktiebolaget Electrolux | Method for transporting liquid in a dishwasher and a device for accomplishing the method |
EP0593876A1 (en) * | 1992-10-08 | 1994-04-27 | Bosch-Siemens HausgerÀ¤te GmbH | Apparatus for rinsing dishes |
US8454763B2 (en) | 2003-06-17 | 2013-06-04 | Whirlpool Corporation | Dishwasher |
US8454762B2 (en) | 2003-06-17 | 2013-06-04 | Whirlpool Corporation | Dishwasher |
US7445013B2 (en) | 2003-06-17 | 2008-11-04 | Whirlpool Corporation | Multiple wash zone dishwasher |
US7475696B2 (en) | 2003-06-17 | 2009-01-13 | Whirlpool Corporation | Dishwasher having valved third-level sprayer |
US7523758B2 (en) | 2003-06-17 | 2009-04-28 | Whirlpool Corporation | Dishwasher having rotating zone wash sprayer |
US7594513B2 (en) | 2003-06-17 | 2009-09-29 | Whirlpool Corporation | Multiple wash zone dishwasher |
US9615720B2 (en) | 2003-06-17 | 2017-04-11 | Whirlpool Corporation | Dishwasher |
US9474434B2 (en) | 2003-06-17 | 2016-10-25 | Whirlpool Corporation | Dishwasher |
US7331356B2 (en) | 2003-06-17 | 2008-02-19 | Whirlpool Corporation | Multiple wash zone dishwater |
US8753454B2 (en) | 2003-06-17 | 2014-06-17 | Whirlpool Corporation | Dishwasher |
US8764908B2 (en) | 2003-06-17 | 2014-07-01 | Whirlpool Corporation | Method of controlling the operation of a dishwasher |
US8801868B2 (en) | 2003-06-17 | 2014-08-12 | Whirlpool Corporation | Dishwasher |
US8808467B2 (en) | 2003-06-17 | 2014-08-19 | Whirlpool Corporation | Dishwasher |
US8871031B2 (en) | 2003-06-17 | 2014-10-28 | Whirlpool Corporation | Dishwasher |
US10238266B2 (en) | 2003-06-17 | 2019-03-26 | Whirlpool Corporation | Dishwasher |
WO2008107636A1 (en) * | 2007-03-07 | 2008-09-12 | Reckitt Benckiser (Uk) Limited | A free standing treatment device for a dishwasher |
US7909936B2 (en) | 2008-12-19 | 2011-03-22 | Whirlpool Corporation | Dishwasher final steam rinse method |
US9272314B2 (en) | 2008-12-19 | 2016-03-01 | Whirlpool Corporation | Dishwasher steam purge method |
US9259138B2 (en) | 2010-12-07 | 2016-02-16 | Whirlpool Corporation | Dishwasher with auxiliary spray system having removable sprayers |
US9119517B2 (en) | 2011-10-17 | 2015-09-01 | Whirlpool Corporation | Dishwasher having spray manifold and method for controlling same |
US10499787B2 (en) | 2011-10-17 | 2019-12-10 | Whirlpool Corporation | Dishwasher having spray manifold |
US10076224B2 (en) | 2014-01-20 | 2018-09-18 | Whirlpool Corporation | Dishwasher |
Also Published As
Publication number | Publication date |
---|---|
DE3716952A1 (en) | 1988-12-08 |
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