DE3803006A1 - DISHWASHER - Google Patents
DISHWASHERInfo
- Publication number
- DE3803006A1 DE3803006A1 DE19883803006 DE3803006A DE3803006A1 DE 3803006 A1 DE3803006 A1 DE 3803006A1 DE 19883803006 DE19883803006 DE 19883803006 DE 3803006 A DE3803006 A DE 3803006A DE 3803006 A1 DE3803006 A1 DE 3803006A1
- Authority
- DE
- Germany
- Prior art keywords
- water
- dishwasher
- spray system
- electric motor
- reached
- 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- Withdrawn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
- A47L15/0018—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
- A47L15/0023—Water filling
-
- 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
- A47L15/4244—Water-level measuring or regulating 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
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/08—Drain or recirculation pump parameters, e.g. pump rotational speed or current absorbed by the motor
-
- 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
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/14—Water pressure or flow rate
-
- 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
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/24—Spray arms status, e.g. detection of spray arm rotation
-
- 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
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/32—Vibration or sound detection
-
- 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
- A47L2501/01—Water supply, e.g. opening or closure of the water inlet valve
Description
Die Erfindung bezieht sich auf eine Geschirrspülmaschine mit einem Sprühsystem, das mittels einer von einem Elektromotor angetriebenen Umlaufpumpe aus einer über ein Wasserzulaufventil verfügenden Sammelwanne mit Reinigungsflüssigkeit gespeist wird. Bei solchen Geschirrspülmaschinen gibt es allgemeine Bestrebungen, den Wasserverbrauch, von dem gleichzeitig auch die zum Aufheizen des Wassers benötigte Energiemenge abhängig ist, so niedrig wie möglich zu halten. Ebenso wirkt sich eine geringere Wasserzufuhr vorteilhaft auf die Geräuschbildung der Maschine aus.The invention relates to a dishwasher with a spray system, which is by means of an electric motor driven circulation pump from an over one Collecting pan with cleaning liquid is fed. In such dishwashers there are general efforts to use water, of which at the same time that for heating the The amount of water needed depends on the amount of energy required, so low to keep as possible. A lower one also has an effect Water supply is beneficial to the noise of the machine out.
Bei bekannten Geschirrspülmaschinen wird deren Wasserfüllung entweder durch die Verwendung von Niveauschaltern oder einer Regeldüse im Magnetventil über die Einlaufzeit bestimmt. Beide Systeme gestatten aber nur, der Maschine jeweils eine vorbestimmte Wassermenge zuzuführen, die allerdings nicht dem optimalen Wert entspricht, sondern vielmehr zu groß bemessen ist. Der Grund hierfür besteht darin, daß ein Sicherheitszuschlag gegeben werden muß, um die mit unangenehmen Arbeitsgeräuschen verbundene Kavitation in der Umlaufpumpe, die sich immer dann ergibt, wenn von ihr mit Luft vermischtes Wasser gefördert wird, nur beim Anlaufen der Maschine auftreten zu lassen, jedoch während des eigentlichen Betriebes unbedingt zu vermeiden.In known dishwashers, their water filling either through the use of level switches or a control nozzle in the solenoid valve over the break-in period certainly. However, both systems only allow the machine to supply a predetermined amount of water each but does not correspond to the optimal value, but rather is too large. The reason for this is there in that a security surcharge must be given to the cavitation associated with unpleasant working noises in the circulation pump, which always arises when water mixed with air is conveyed, only to occur when starting the machine, however absolutely to be avoided during the actual operation.
Unter den vorstehend angeführten Gesichtspunkten besteht die Aufgabe der Erfindung darin, eine Geschirrspülmaschine verfügbar zu machen, deren Wasserzufuhr so geregelt wird, daß sich in der Sammelwanne jeweils gerade nur so viel Reinigungsflüssigkeit befindet, wie erforderlich ist, damit die Umlaufpumpe ohne Lufteinschlüsse und insofern weitgehend geräuschfrei arbeitet.From the above points of view the object of the invention is to provide a dishwasher to make available, their water supply regulated in this way will be that in the collecting tank straight only as much cleaning fluid as is required is so that the circulation pump without air pockets and insofar works largely without noise.
Die Lösung der gestellten Aufgabe geht aus den Ansprüchen sowie aus den Schaltbildern der Fig. 1-4 hervor, die zusammen mit der Fig. 5 mehrere Ausführungsbeispiele der Erfindung zeigen. In den Fig. 6-9 sind außerdem noch Meßdiagramme einer herkömmlichen Geschirrspülmaschine wiedergegeben, die den Nachweis erbringen, daß die Feststellung des stabilen Betriebszustandes der Umlaufpumpe und zugleich also auch die Bestimmung der erforderlichen Wassermenge in der Maschine im Sinne der beanspruchten Maßnahmen möglich ist.The solution to the stated problem is evident from the claims and from the circuit diagrams of FIGS. 1-4, which together with FIG. 5 show several exemplary embodiments of the invention. In FIGS. 6-9 also still measuring diagrams of a conventional dishwashing machine are shown, which provide evidence that the determination of the steady state operation of the circulation pump and at the same time including the determination of the required amount of water in the machine in the sense of the claimed measures is also possible.
Die in den Fig. 1-4 enthaltenen Bezugszeichen haben folgende Bedeutung:The reference symbols contained in FIGS . 1-4 have the following meaning:
Fig. 1
1 = Strommeßeinrichtung (Shunt)
2 = Verstärker mit Gleichrichter
3 = Hochpaß
4 = Pumpenmotor
5 = Komparator (vorzugsweise mit Hysterese)
6 = Schaltsignal für Wasserzulaufventil Fig. 1
1 = current measuring device (shunt)
2 = amplifier with rectifier
3 = high pass
4 = pump motor
5 = comparator (preferably with hysteresis)
6 = switching signal for water inlet valve
Fig. 2
1 = Strommeßeinrichtung (Shunt)
2 = Verstärker mit Gleichrichter
3 = Hochpaß mit Verstärker
4 = Pumpenmotor
7 = Komparatoren
8 = Schalter
9 = Magnetventil (Wasserzulaufventil) Fig. 2
1 = current measuring device (shunt)
2 = amplifier with rectifier
3 = high pass with amplifier
4 = pump motor
7 = comparators
8 = switch
9 = solenoid valve (water supply valve)
Fig. 3
10 = Phasendiskriminator
11 = Hochpaßfilter
12 = Komparator
13 = Einphaseninduktionsmotor
14 = Ausgangssignal für Wasserzulaufventil Fig. 3
10 = phase discriminator
11 = high pass filter
12 = comparator
13 = single-phase induction motor
14 = output signal for water inlet valve
Fig. 4
20 = Mikrofon (Körperschall-Piezomikrofon)
21 = Verstärker
22 = Gleichrichter
23 = Komparator
24 = Schaltsignal für Wasserzulaufventil Fig. 4
20 = microphone (structure-borne sound piezo microphone)
21 = amplifier
22 = rectifier
23 = comparator
24 = switching signal for water inlet valve
Wie die Meßdiagramme der Fig. 6-9 übereinstimmend erkennen lassen, ist das Betriebsverhalten der Umlaufpumpe während des Wassereinlaufs stets in derselben Weise daraus zu entnehmen. So läuft die Pumpe zunächst einmal leer, bis es beim Erreichen einer gewissen Mindestfüllung der Sammelwanne in unregelmäßigen Abständen zu unterschiedlichen Druck- und Belastungsstößen kommt. Erst nachdem sich die Pumpe völlig gefüllt hat, stellt sich ein Zustand ohne Leistungsschwankungen und demzufolge ein stabiles Laufverhalten ein. Dieser auf verschiedenen Wegen, nämlich über die Stromaufnahme oder die Kondensatorspannung des Pumpenmotors, den Flüssigkeitsdruck im Sprühsystem, aber auch die Motordrehzahl, die Strömungsgeschwindigkeit der geförderten Reinigungsflüssigkeit oder den Geräuschpegel bzw. die Erschütterungen der Maschine eindeutig meßbare, in den Diagrammen durch eine strichpunktierte senkrechte Linie kenntlich gemachte bestmögliche Betriebspunkt kann dann zum Schließen des Wasserzulaufventils benutzt werden, so daß man mit einer erheblich geringeren Wassermenge auskommen kann, als sie gegenwärtig zu bestimmen und daher üblich ist.As can be seen from the measurement diagrams in FIGS . 6-9, the operating behavior of the circulation pump during the water inlet can always be seen in the same way. The pump initially runs empty until there are irregular pressure surges when the tank is filled to a certain minimum. Only after the pump has completely filled does a condition without performance fluctuations and consequently a stable running behavior appear. This can be clearly measured in various ways, namely via the current consumption or the capacitor voltage of the pump motor, the liquid pressure in the spray system, but also the motor speed, the flow speed of the conveyed cleaning liquid or the noise level or the vibrations of the machine, in the diagrams by a dash-dotted vertical line identified best possible operating point can then be used to close the water inlet valve, so that one can manage with a considerably smaller amount of water than it is currently to determine and is therefore common.
Entsprechend den Diagrammen der Fig. 6-9 tritt der stabile Zustand nicht nur unabhängig vom jeweiligen Meßverfahren immer an derselben Stelle ein, sondern er ist auch abhängig davon, ob lediglich mit klarem Wasser oder mit verschiedenen Spülmitteln gearbeitet wird. Auf diese Weise ist noch zusätzlich Wasser und Energie einzusparen, indem sich die Wassermenge in den einzelnen Spülgängen der wechselnden Konsistenz der Reinigungsflüssigkeit genauestens anpassen läßt. In jedem Falle wird das Schließen des Wasserzulaufventils, bei dem es sich zum Unterschied vom Stand der Technik um ein ganz einfaches Einlaßventil handeln kann, im richtigen Zeitpunkt veranlaßt, womit die erfindungsgemäße Geschirrspülmaschine sowohl den geringstmöglichen Wasser- und Energiebedarf aufweist, als auch in der Lage ist, geräuschärmer zu arbeiten.According to the diagrams in Fig. 6-9, the stable state not only occurs at the same point regardless of the measurement method, but it also depends on whether you are working with clear water or with different detergents. In this way, additional water and energy can be saved in that the amount of water in the individual rinse cycles can be precisely adapted to the changing consistency of the cleaning liquid. In any case, the closing of the water supply valve, which, in contrast to the prior art, can be a very simple inlet valve, is initiated at the right time, which means that the dishwasher according to the invention has both the lowest possible water and energy requirements and is capable of doing so is to work quieter.
Claims (2)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19883803006 DE3803006A1 (en) | 1988-02-02 | 1988-02-02 | DISHWASHER |
EP89101093A EP0326893A3 (en) | 1988-02-02 | 1989-01-23 | Dish washer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19883803006 DE3803006A1 (en) | 1988-02-02 | 1988-02-02 | DISHWASHER |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3803006A1 true DE3803006A1 (en) | 1989-08-03 |
Family
ID=6346438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19883803006 Withdrawn DE3803006A1 (en) | 1988-02-02 | 1988-02-02 | DISHWASHER |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0326893A3 (en) |
DE (1) | DE3803006A1 (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4010066A1 (en) * | 1990-03-29 | 1991-10-02 | Miele & Cie | System for monitoring spray arm rotation of dishwasher - has each spray arm driven by reaction of rinsing liquid leaving spray arm nozzles and sensor detecting rotation |
DE4020898A1 (en) * | 1990-06-30 | 1992-01-02 | Licentia Gmbh | Dishwasher spray arm - has movement sensor to indicate blockage through incorrect loading |
DE4038802A1 (en) * | 1990-12-05 | 1992-06-11 | Bosch Siemens Hausgeraete | CONTROL FOR AN ELECTRICAL HOME APPLIANCE |
US5284523A (en) * | 1992-05-01 | 1994-02-08 | General Electric Company | Fuzzy logic control method for reducing water consumption in a machine for washing articles |
DE4235973A1 (en) * | 1992-10-24 | 1994-04-28 | Miele & Cie | Control of water supply to programmable dishwashing machine - using rotating spray heads, with speed proportional to water pressure, and inlet valve to keep speed constant |
US5313964A (en) * | 1992-05-01 | 1994-05-24 | General Electric Company | Fluid-handling machine incorporating a closed loop system for controlling liquid load |
DE4336348A1 (en) * | 1992-12-23 | 1994-06-30 | Bosch Siemens Hausgeraete | Filling domestic dishwasher with liquid quantity |
US5330580A (en) * | 1992-05-01 | 1994-07-19 | General Electric Company | Dishwasher incorporating a closed loop system for controlling machine load |
DE19630357A1 (en) * | 1996-07-26 | 1998-02-05 | Aweco Kunststofftech Geraete | Water quantity control device for electric-pump operated dishwashers |
DE19828871A1 (en) * | 1998-06-25 | 1999-12-30 | Bsh Bosch Siemens Hausgeraete | Washing machine, dishwasher etc. with control mechanism |
DE102004003536A1 (en) * | 2004-01-23 | 2005-08-11 | BSH Bosch und Siemens Hausgeräte GmbH | Liquid household electrical appliance |
DE10154630C5 (en) * | 2001-11-07 | 2008-02-07 | Diehl Ako Stiftung & Co. Kg | Method for operating an electric motor-driven pump in a dishwasher |
DE102007041311A1 (en) | 2007-08-31 | 2009-03-05 | BSH Bosch und Siemens Hausgeräte GmbH | Method for operating a water-conducting household appliance |
EP1699340B2 (en) † | 2003-12-16 | 2020-06-17 | BSH Hausgeräte GmbH | Dishwasher with an intermediate pump mode |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4140949C2 (en) * | 1991-12-12 | 1996-07-11 | Aeg Hausgeraete Gmbh | Level control for a dishwasher |
GR1001227B (en) * | 1992-04-20 | 1993-06-30 | Dimitrios Pachopoulos | New-type dishwasher of high aesthetics and liturgicity. |
IT1282923B1 (en) * | 1995-01-12 | 1998-04-01 | Zanussi Elettrodomestici | WASHING MACHINE WITH DYNAMIC WATER LOAD CONTROL SYSTEM. |
ITPN960015A1 (en) * | 1996-03-04 | 1997-09-04 | Zeltron Spa | WASHING MACHINE |
IT1289392B1 (en) * | 1996-09-12 | 1998-10-02 | Electrolux Zanussi Elettrodome | METHOD FOR CHECKING THE QUANTITY OF WATER PUT INTO A DISHWASHER |
IT1284821B1 (en) * | 1996-09-26 | 1998-05-22 | Bitron Spa | ELECTRONIC CONTROL SYSTEM OF THE OPERATING CONDITION OF THE DISHWASHER MOTOR OF A DISHWASHER. |
DE19812230A1 (en) * | 1998-03-20 | 1999-09-23 | Aeg Hausgeraete Gmbh | Dishwasher and method for operating the same |
DE19841694A1 (en) | 1998-09-11 | 2000-03-16 | Bsh Bosch Siemens Hausgeraete | Process for operating a household dishwasher comprises establishing the amount of fluid removed and the amount to be added using the number of revolutions of the circulating pump |
DE19857413A1 (en) * | 1998-12-12 | 2000-06-21 | Whirlpool Co | Process for cleaning dishes in a dishwasher |
DE10064551A1 (en) * | 2000-12-22 | 2002-06-27 | Bsh Bosch Siemens Hausgeraete | Water-bearing domestic machine with water feed control evaluates vibration sensor signal during water input, uses evaluation results to interrupt water feed on reaching demand value |
DE10065677A1 (en) * | 2000-12-29 | 2002-07-04 | Bsh Bosch Siemens Hausgeraete | Water bearing domestic machine has vibration sensor, circuit with amplifier, rectifier, evaluation element and analog-digital converter providing digital signal for controlling pump |
DE102004009046B3 (en) * | 2004-02-23 | 2005-05-19 | Hanning Elektro-Werke Gmbh & Co. Kg | Operating condition diagnosis method for synchronous pump e.g. circulation pump in dishwashing machine, using evaluation of phase shift between voltage and current of pump motor |
ES2373550T3 (en) * | 2004-03-10 | 2012-02-06 | Whirlpool Corporation | DISHWASHER MACHINE. |
US8852354B2 (en) † | 2004-03-16 | 2014-10-07 | Atilla Uz | Dishwasher and control method thereof |
GB2445704A (en) * | 2005-11-04 | 2008-07-16 | Fisher & Paykel Appliances Ltd | Washing machine pump control for water drainage, ventilation, dislodging blockage and recirculation |
DE102007011307B3 (en) | 2007-03-06 | 2008-08-21 | Miele & Cie. Kg | Water intake implementing method for rinsing machine i.e. household-dishwasher, involves supplying water amount to machine depending on refueling rotational speed or mathematical relationship between target and refueling rotational speeds |
ITTO20090566A1 (en) * | 2009-07-24 | 2011-01-25 | Indesit Co Spa | WASHING MACHINE, IN PARTICULAR A DISHWASHER. |
ES2388172B1 (en) * | 2009-08-07 | 2013-08-19 | Bsh Electrodomesticos España S.A. | DISHWASHER MACHINE WITH A CAPTURE DEVICE FOR A STATE OF FILLING A COLLECTOR DEVICE FOR A WATERY WASHING LIQUID. |
DE102010027756A1 (en) * | 2010-04-14 | 2011-10-20 | BSH Bosch und Siemens Hausgeräte GmbH | Dishwasher with fault detection |
US8277571B2 (en) * | 2010-08-24 | 2012-10-02 | General Electric Company | Methods and apparatus for detecting pump cavitation in a dishwasher using frequency analysis |
CN101972131A (en) * | 2010-10-20 | 2011-02-16 | 陆绍章 | Nonelectric rotating brush type dish washing machine |
PL2916707T3 (en) | 2012-11-08 | 2020-02-28 | Electrolux Home Products Corporation N.V. | Detecting operational state of a dishwasher |
BR112015010393A2 (en) | 2012-11-08 | 2017-07-11 | Electrolux Home Products Corp Nv | method and device for detecting clogging, dishwasher, computer program and computer program product |
BR112018007322A2 (en) | 2015-11-10 | 2018-10-23 | Electrolux Appliances AB | method for determining if a process water is present in a circulation pump, apparatus, computer program, and product |
PL3376930T3 (en) * | 2015-11-19 | 2020-05-18 | Electrolux Appliances Aktiebolag | Estimating water fill rate in an appliance for washing and rinsing goods |
CN108430298B (en) | 2015-11-25 | 2021-04-06 | 伊莱克斯电器股份公司 | Determining whether treatment water is added to a sump of an appliance during an interruption of operation of the appliance for washing and rinsing goods |
US11019979B2 (en) | 2016-02-15 | 2021-06-01 | Electrolux Appliances Aktiebolag | Process water flow detection in circulation pump |
CN106388749B (en) * | 2016-09-26 | 2019-10-01 | 佛山市顺德区美的洗涤电器制造有限公司 | The controlling Method for inflow and water inflow control system and dish-washing machine of dish-washing machine |
WO2018153472A1 (en) | 2017-02-24 | 2018-08-30 | Electrolux Appliances Aktiebolag | Dishwasher, method and control system for handling clogging condition |
EP3488756B1 (en) * | 2017-11-24 | 2020-09-23 | Vestel Elektronik Sanayi ve Ticaret A.S. | Dishwashing machine and method |
WO2023117095A1 (en) * | 2021-12-22 | 2023-06-29 | Electrolux Appliances Aktiebolag | Washing appliance with improved determination of inlet valve fault conditions |
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DE2720958A1 (en) * | 1977-05-10 | 1978-11-23 | Multitechnica Ges Fuer Tech In | Electronic dishwasher water pressure control - involves pulse sequence produced by oscillator and fed to motor to regulate speed |
DE2840627A1 (en) * | 1978-09-19 | 1980-03-27 | Kieninger & Obergfell | Device for controlling liquid level in domestic appliances - has diaphragm stressed by liquid and piezoelectric transducer producing analogue signals |
DE3014225A1 (en) * | 1980-04-14 | 1981-10-15 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | METHOD FOR FILLING THE CONTAINER OF A HOUSEHOLD DEVICE WITH LIQUID, AND HOUSEHOLD DEVICE FOR CARRYING OUT THE METHOD |
EP0263550A1 (en) * | 1986-09-20 | 1988-04-13 | Bauknecht Hausgeräte GmbH | Control system for a valve in a dishwasher or the like |
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DE2555052A1 (en) * | 1975-12-06 | 1977-06-08 | Miele & Cie | Dishwasher with program-controlled water supply - uses motor current from circulating pump to ensure correct water level |
US4097307A (en) * | 1976-12-17 | 1978-06-27 | Hobart Corporation | Fill control for an automatic dishwasher |
FR2499396A1 (en) * | 1981-02-06 | 1982-08-13 | Esswein Sa | Dishwashing machine with pump pressure transducer - uses pump to spray water onto dishes and pressure transducer to cut off water inlet solenoid when sufficient water is admitted |
IT1174941B (en) * | 1983-02-14 | 1987-07-01 | Zanussi A Spa Industrie | WATER LOAD CONTROL SYSTEM FOR DISHWASHER |
FR2577788B1 (en) * | 1985-02-28 | 1988-08-19 | Esswein Sa | DISHWASHER WITH ELECTRIC VALVE INTRODUCING WATER CONTROLLED BY THE PRESSURE OF THE CYCLING PUMP |
-
1988
- 1988-02-02 DE DE19883803006 patent/DE3803006A1/en not_active Withdrawn
-
1989
- 1989-01-23 EP EP89101093A patent/EP0326893A3/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2720958A1 (en) * | 1977-05-10 | 1978-11-23 | Multitechnica Ges Fuer Tech In | Electronic dishwasher water pressure control - involves pulse sequence produced by oscillator and fed to motor to regulate speed |
DE2840627A1 (en) * | 1978-09-19 | 1980-03-27 | Kieninger & Obergfell | Device for controlling liquid level in domestic appliances - has diaphragm stressed by liquid and piezoelectric transducer producing analogue signals |
DE3014225A1 (en) * | 1980-04-14 | 1981-10-15 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | METHOD FOR FILLING THE CONTAINER OF A HOUSEHOLD DEVICE WITH LIQUID, AND HOUSEHOLD DEVICE FOR CARRYING OUT THE METHOD |
EP0263550A1 (en) * | 1986-09-20 | 1988-04-13 | Bauknecht Hausgeräte GmbH | Control system for a valve in a dishwasher or the like |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4010066A1 (en) * | 1990-03-29 | 1991-10-02 | Miele & Cie | System for monitoring spray arm rotation of dishwasher - has each spray arm driven by reaction of rinsing liquid leaving spray arm nozzles and sensor detecting rotation |
DE4020898A1 (en) * | 1990-06-30 | 1992-01-02 | Licentia Gmbh | Dishwasher spray arm - has movement sensor to indicate blockage through incorrect loading |
DE4038802A1 (en) * | 1990-12-05 | 1992-06-11 | Bosch Siemens Hausgeraete | CONTROL FOR AN ELECTRICAL HOME APPLIANCE |
US5330580A (en) * | 1992-05-01 | 1994-07-19 | General Electric Company | Dishwasher incorporating a closed loop system for controlling machine load |
US5284523A (en) * | 1992-05-01 | 1994-02-08 | General Electric Company | Fuzzy logic control method for reducing water consumption in a machine for washing articles |
US5313964A (en) * | 1992-05-01 | 1994-05-24 | General Electric Company | Fluid-handling machine incorporating a closed loop system for controlling liquid load |
US5408716A (en) * | 1992-05-01 | 1995-04-25 | General Electric Company | Fluid-handling machine incorporating a closed loop system for controlling liquid load |
DE4235973A1 (en) * | 1992-10-24 | 1994-04-28 | Miele & Cie | Control of water supply to programmable dishwashing machine - using rotating spray heads, with speed proportional to water pressure, and inlet valve to keep speed constant |
DE4336348A1 (en) * | 1992-12-23 | 1994-06-30 | Bosch Siemens Hausgeraete | Filling domestic dishwasher with liquid quantity |
DE19630357A1 (en) * | 1996-07-26 | 1998-02-05 | Aweco Kunststofftech Geraete | Water quantity control device for electric-pump operated dishwashers |
DE19828871A1 (en) * | 1998-06-25 | 1999-12-30 | Bsh Bosch Siemens Hausgeraete | Washing machine, dishwasher etc. with control mechanism |
DE19828871B4 (en) * | 1998-06-25 | 2008-07-03 | BSH Bosch und Siemens Hausgeräte GmbH | dishwasher |
DE10154630C5 (en) * | 2001-11-07 | 2008-02-07 | Diehl Ako Stiftung & Co. Kg | Method for operating an electric motor-driven pump in a dishwasher |
EP1699340B2 (en) † | 2003-12-16 | 2020-06-17 | BSH Hausgeräte GmbH | Dishwasher with an intermediate pump mode |
DE102004003536A1 (en) * | 2004-01-23 | 2005-08-11 | BSH Bosch und Siemens Hausgeräte GmbH | Liquid household electrical appliance |
US8439052B2 (en) | 2004-01-23 | 2013-05-14 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Liquid-conducting electrical household appliance |
DE102007041311A1 (en) | 2007-08-31 | 2009-03-05 | BSH Bosch und Siemens Hausgeräte GmbH | Method for operating a water-conducting household appliance |
WO2009027371A1 (en) | 2007-08-31 | 2009-03-05 | BSH Bosch und Siemens Hausgeräte GmbH | Method for the operation of a water-conducting household appliance |
Also Published As
Publication number | Publication date |
---|---|
EP0326893A3 (en) | 1990-03-21 |
EP0326893A2 (en) | 1989-08-09 |
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