EP1460927A1 - Dishwasher for receiving articles to be cleaned that are arranged in a washing compartment - Google Patents

Dishwasher for receiving articles to be cleaned that are arranged in a washing compartment

Info

Publication number
EP1460927A1
EP1460927A1 EP02792807A EP02792807A EP1460927A1 EP 1460927 A1 EP1460927 A1 EP 1460927A1 EP 02792807 A EP02792807 A EP 02792807A EP 02792807 A EP02792807 A EP 02792807A EP 1460927 A1 EP1460927 A1 EP 1460927A1
Authority
EP
European Patent Office
Prior art keywords
steam
liquid
outlet opening
jet
dispenser
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02792807A
Other languages
German (de)
French (fr)
Other versions
EP1460927B1 (en
Inventor
Rüdiger EIERMANN
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
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1460927A1 publication Critical patent/EP1460927A1/en
Application granted granted Critical
Publication of EP1460927B1 publication Critical patent/EP1460927B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • A47L15/42—Details
    • A47L15/4202—Water filter means or strainers
    • A47L15/4208—Arrangements to prevent clogging of the filters, e.g. self-cleaning
    • 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
    • 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
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/16—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with rigidly-mounted spraying devices
    • 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
    • A47L15/4219—Water recirculation
    • A47L15/4221—Arrangements for redirection of washing water, e.g. water diverters to selectively supply the spray arms
    • 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
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4278—Nozzles
    • 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
    • A47L15/46—Devices for the automatic control of the different phases of cleaning ; Controlling devices
    • 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

  • Dishwasher for holding items to be cleaned arranged in a washing container
  • the invention relates to a dishwasher for receiving items to be cleaned arranged in a washing container according to the preamble of patent claim 1.
  • a dishwasher for receiving items to be cleaned arranged in a washing container which has a pump for circulating liquid, a continuous-flow heater for heating the liquid and a spray device for applying the liquid to the items to be cleaned when one is selected Has flushing process by a control device.
  • the dishwasher has a device for providing steam when a separate steam rinsing cycle, which runs between the pre-rinse cycle and the main rinse cycle, is activated.
  • This device for providing the steam is arranged directly below the spraying device directly in the washing container and supplies the steam which escapes from the steam discharge openings into the washing container at any point in an uncontrolled manner by heating water in a separate chamber.
  • the steam rinse serves to dissolve heavily soiled items to be cleaned and is initiated by the user via the control device when a corresponding program is selected.
  • the device responsible for providing the steam must be manually removed from the dishwasher and cleaned.
  • a working container for a dishwasher is known from German Patent DE 44 01 420, which has a heating element with a steam chamber partially filled with vaporizable liquid.
  • the invention is based on the object of creating a dishwasher of the type described, by means of which the cleaning result supported by the provision of steam is improved, in particular for heavily soiled items to be cleaned.
  • the object of the invention advantageously results in an arrangement of the device provided for providing the steam with separate steam dispensers and steam jets in such a way that the steam jet always has the same specific location in the rinsing container that is used to hold the special - e.g. heavily soiled - items to be cleaned can be specially marked and designed with which steam is applied.
  • An uncontrolled escape of the steam at any point in the entire washing container is just avoided by the invention, which leads to an improvement in the cleaning result with the greatest possible utilization of the steam and, moreover, does not depend on the activation of a separate steam flushing process.
  • the predetermined location provided for receiving special items to be cleaned is set up in the vicinity of a washing compartment wall. This allows the cleaning result to be further optimized, since the only outlet point for the steam for the application of the special items to be cleaned is in the border area of the washing compartment and the other normal items to be cleaned are not affected.
  • the steam dispenser is arranged parallel to the instantaneous water heater and is supplied with the liquid from the selected rinsing process via a valve connected in between.
  • the steam dispenser is thus located in the hydraulic circuit of the dishwasher, which means that there is only the possibility of the steam dispenser being automatically repeated several times during a wash cycle fill with liquid and evaporate it. There is no need for a separate steam rinse cycle.
  • the steam jet is provided with a combined steam jet nozzle which has an outlet opening for a liquid jet and another outlet opening for the steam.
  • the deposits formed in the steam generator and / or steam jet and / or the nozzle - in particular the lime particles formed during the heating of the liquid or the evaporation - can thus be rinsed out without one of the above devices having to be replaced manually.
  • the steam jet nozzle has a two-way valve which closes one outlet opening and opens the other outlet opening.
  • one and the same valve on the one hand selects the path for the emission of liquid and on the other hand the path for the escape of the vapor.
  • the outlet opening for the steam is preferably directed upwards and the outlet opening for the liquid jet is directed to the side.
  • the outlet opening for the steam and the outlet opening for the liquid jet can also be directed in parallel in the steam jet nozzle.
  • the two-way valve is designed as a double ball float which, when the steam dispenser is switched on, closes the outlet opening for the liquid jet through its upper ball-shaped end and which closes through its lower ball-shaped end when the steam dispenser is switched off and liquid conveyed from below moved upward and through its upper spherical end closes the outlet opening for the steam and opens the outlet opening for the liquid jet.
  • the two-way valve is designed as a spoon-ball arrangement which, when the steam dispenser is switched on, closes the outlet opening for the liquid jet through a spoon-like end, and the spherical end of which moves upwards when the steam dispenser is switched off and the liquid conveyed from below as well as the outlet opening for the steam closes and the spoon-like end opens the outlet opening for the liquid jet.
  • a further embodiment of the induction has proven to be of particular value, in which a liquid is emitted through the outlet opening for the liquid jet of the steam jet nozzle onto the sieve arranged in the rinsing container for screen cleaning.
  • the nozzle can be used not only for the discharge of steam at the predetermined location for cleaning purposes for special items to be cleaned, but also elsewhere in the rinsing container for cleaning purposes for other facilities, preferably for the sieve, which is often heavily soiled with solid particles. Otherwise, this is only possible in a separate cleaning process - usually manually by the user - and not automatically.
  • the switched off steam dispenser the steam jet and the steam jet nozzle convey a clear liquid to remove deposits.
  • a rinse aid liquor improves the result of the flushing out of residues, including the lime particles, in the facilities mentioned.
  • FIG. 1 shows a side inside view of the washing compartment of a dishwasher according to the invention
  • FIG. 2 shows a block diagram of the devices for providing steam in the dishwasher
  • Figure 5 shows an alternative variant of the two-way valve in the sectional view.
  • FIG. 1 shows a side inside view of a washing container 2 of a dishwasher 1 according to the invention, in which an upper crockery basket 3 and a lower crockery basket 14 for receiving items to be cleaned, for example crockery and cutlery, are arranged.
  • the crockery baskets 3, 14 are known to each consist of basket side walls and a basket base with vertically and horizontally extending basket struts and usually have obliquely upwardly directed parallel spikes, between which flat items of crockery such as plates, saucers etc. can be securely held in the washing compartment 2.
  • the upper crockery basket 3 is designed so that it can be pulled out of the washing container 2 by means of a plurality of rollers 6 which move on the basket guide rails 5 arranged near the washing container side walls. It can only be pulled out when the door 4 is open, which is attached to the front for closing and opening the dishwasher 1 and has an operating panel in the upper area with display elements and program selection switches for activating different programs, such as washing and drying processes.
  • the dishwasher 1 also has spray devices, of which a spray device 13 in the form of a spray arm is arranged below the lower basket 14 in the washing container 2, for applying a liquid - usually water - to the items to be cleaned when a washing process is selected by a control device coupled to the program selector switch ,
  • a pump which cannot be seen in the side view, circulates the liquid before it is fed to a continuous-flow heater, which is also not visible in the side view, for heating the liquid and then to the spray device 13.
  • This hydraulic circuit also includes several supply lines and discharge lines 11, 12 for conveying the rinsing liquid to the items to be cleaned and for returning them after the rinsing process.
  • One of the discharge lines 11 is connected to a sieve 15 arranged in the rinsing container near the container bottom for collecting solid parts and particles.
  • a steam dispenser 7 is arranged - advantageously in parallel to the instantaneous heater - which supplies a steam jet 8 with a connected steam jet nozzle 9 to provide the steam.
  • Steam dispenser 7 and steam jet 8 together form the device for providing the steam and are installed in the dishwasher 1 in such a way that the steam jet 8 in the dishwashing container 2 has a predetermined one, for taking up special items 16 to be cleaned - in the selected example of a heavily soiled pot which is located in the lower crockery basket 14 - the intended location is subjected to steam.
  • the only and predetermined for receiving the special items to be cleaned 16 te position is preferably set up according to the embodiment in the vicinity of a rinsing tank wall - in this example, the rinsing tank rear wall 15.
  • the cleaning result can be further optimized, since the only outlet point for the steam for loading the pot 16 is in the border area of the washing compartment 2 and the other “normal” items of washing - arranged in the other area of the lower crockery basket 14 - do not affect.
  • the object of the invention advantageously results in an arrangement of the device provided for providing the steam with separate steam dispenser 7 and steam jet 8 - in conjunction with steam jet nozzle 9 - such that the steam jet 8 always has the same predetermined position in the washing compartment 2, which can be specially marked and designed to accommodate the special items 16 to be cleaned - for example without the usual spikes, but with a separate locking device in the lower crockery basket 14 - with which steam is applied.
  • An uncontrolled escape of the steam into the entire rinsing container 2 is just avoided by the invention, which leads to an improvement in the cleaning result with the greatest possible utilization of the steam and, moreover, does not depend on the activation of a separate steam rinsing process.
  • FIG. 2 shows a block diagram of the devices for providing the steam in the dishwasher according to FIG. 1.
  • the steam dispenser 7 is located in a particularly favorable manner, preferably arranged parallel to the instantaneous water heater 18, and the one supplied by the steam dispenser 7 and with a steam jet nozzle 9 provided steam jet 8 in the hydraulic circuit of the dishwasher. This is the only way to automatically fill the steam dispenser 7 with liquid several times during a rinse cycle and evaporate it. A separate steam rinse cycle is not required, which avoids additional control and expenditure of time.
  • the liquid - preferably clear water - is conveyed via the upstream circulation pump 17, transported by the instantaneous heater 18 - both in the switched-off and in the switched-on state for heating the water - and to the spray device 13 and in a parallel way via an inlet valve 19 forwarded to the steam dispenser 7.
  • a check valve 20 is inserted at the outlet of the steam dispenser 7 for safety reasons.
  • the hydraulic circuit closes - shown in dashed lines - by draining off the flushing liquid a rinsing process and supply of new liquid via the circulating pump 17 into the water cycle.
  • the steam jet nozzle 9 with built-in two-way valve 25 and 25 ' is shown in a side sectional view - FIG. 3 - so an external view - FIG. 4.
  • the steam jet 8 is provided with a combined steam jet nozzle 9 which has an outlet opening 24 for a liquid jet and another outlet opening 23 for the steam. Due to the separate jet and steam paths, the deposits that inevitably arise in the steam generator and / or steam jet and / or the nozzle - especially the lime particles formed during the heating of the liquid or the evaporation - can be rinsed out with water, for example. without having to replace one of the above devices manually.
  • the use of a rinse aid liquor improves the result of the flushing out of residues, including the lime particles, in the facilities mentioned.
  • the steam jet nozzle 9 is provided with a two-way valve 25 which closes one outlet opening 24 and simultaneously opens or leaves the other outlet opening 23 open.
  • one and the same valve 25 automatically selects the path for emitting liquid and, on the other hand, the path for the vapor to escape.
  • the outlet opening 23 for the steam is preferably directed upwards and the outlet opening 24 for the liquid jet is directed to the side.
  • the outlet opening for the steam and the outlet opening for the liquid jet can also be directed parallel in the steam jet nozzle 9, see also the structure of the two-way valve according to FIG. 5.
  • the two-way valve 25 of the nozzle 9 is particularly advantageously constructed as a double ball float - in the manner of a dumbbell with two balls attached to the ends - which, when the steam dispenser is switched on, closes the outlet opening 24 intended for the liquid jet through its upper spherical end 22 and which, when the steam dispenser is switched off and from below - via the coupled steam jet 8 - is conveyed into the interior of the nozzle 9 and flowing in liquid through its lower spherical end 21 upwards in the direction of the other outlet opening 23 moves - floats - and through its upper spherical end 22 closes this outlet opening 23 for the steam and opens the outlet opening 24 provided for the liquid jet, through which the water is then rinsed out laterally.
  • the illustration in FIG. 4 shows an external view of the coupling of the steam jet 8 to the housing 9 'of the steam jet nozzle with the two outlet openings 23, 24 directed to the side and upwards.
  • this is designed as a spoon-ball arrangement - in the manner of a balance with a spoon at one end and a ball at the other end - which when switched on tetem steam dispenser through the spoon-shaped end 27 closes the outlet opening 24 'provided for the liquid jet, and its spherical end 26 moves upwards in the direction of the other parallel opening when the steam dispenser is switched off and the conveyed liquid flowing into the interior of the nozzle from below as well as the outlet opening 23 'provided for the steam and the spoon-like end of which opens the outlet opening 24' for the liquid jet.
  • a further embodiment of the invention has proven to be of particular value, in which through the outlet openings 24, 24 'of the steam jet nozzle 9 which are provided for the exit of a liquid jet, a liquid - preferably clear water - is placed on the one arranged in the washing container Sieve - see reference numeral 10 in Figure 1 - is emitted for screen cleaning.
  • the nozzle 9 can be used not only for the discharge of steam at the predetermined location for cleaning purposes for special items to be cleaned, such as a heavily soiled pot, but also elsewhere in the rinsing container for cleaning purposes for other facilities, preferably for that which often contains solid particles dirty strainer, can also be used. Otherwise, this is only possible in a separate cleaning process - usually manually by the user - and not automatically as in the dishwasher designed according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

A dishwasher includes a washing receptacle for items to be cleaned, a pump for liquid, a flow heater for liquid, a device for spraying items to be cleaned, a control device for wash cycles of the spraying device, and a device for providing steam having a separate steam dispenser and unit for producing a jet of steam supplied by the steam dispenser. The steam dispenser and the steam jet unit are disposed in the dishwasher in such a way that the steam jet unit always supplies steam to the same predetermined location in the washing receptacle specifically identified and configured for receiving particular items to be cleaned, e.g. particularly dirty items. An uncontrolled escape of steam from any section of the entire washing receptacle is prevented, thus improving the cleaning result with maximum usage of the steam and without also being dependent on activation of a separate steam washing cycle.

Description

Geschirrspülmaschine zur Aufnahme von in einem Spülbehälter angeordnetem Reinigungsgut Dishwasher for holding items to be cleaned arranged in a washing container
Die Erfindung betrifft eine Geschirrspülmaschine zur Aufnahme von in einem Spülbehälter angeordnetem Reinigungsgut nach dem Oberbegriff des Patentanspruches 1.The invention relates to a dishwasher for receiving items to be cleaned arranged in a washing container according to the preamble of patent claim 1.
Aus der Deutschen Offenlegungsschrift DE 29 00 954 ist eine Geschirrspülmaschine zur Aufnahme von in einem Spülbehälter angeordnetem Reinigungsgut bekannt, die eine Pumpe zum Umwälzen von Flüssigkeit, einen Durchlauferhitzer zum Erwärmen der Flüs- sigkeit und eine Sprüheinrichtung zum Aufbringen der Flüssigkeit auf das Reinigungsgut bei Auswahl eines Spülvorgangs durch eine Steuereinrichtung aufweist. Darüber hinaus verfügt die Geschirrspülmaschine über eine Einrichtung zur Bereitstellung von Dampf bei Aktivierung eines gesonderten, zwischen Vorspülgang und Hauptspülgang ablaufenden Dampfspülgangs. Diese Einrichtung zur Bereitstellung des Dampfes ist unmittelbar unter- halb der Sprüheinrichtung direkt im Spülbehälter angeordnet und liefert den aus Dampf- abgabeöffnungen in den Spülbehälter an beliebige Stellen unkontrolliert austretenden Dampf durch Aufheizen von Wasser in einer gesonderten Kammer. Der Dampfspülgang dient dabei zum Anlösen von stark verschmutztem Reinigungsgut und wird bei Auswahl eines entsprechenden Programms durch den Benutzer über die Steuereinrichtung initiiert. Zur Entkalkung des Dampferzeugers muss die für die Bereitstellung des Dampfes zuständige Einrichtung aus der Geschirrspülmaschine manuell entfernt und gereinigt werden.From German Offenlegungsschrift DE 29 00 954, a dishwasher for receiving items to be cleaned arranged in a washing container is known, which has a pump for circulating liquid, a continuous-flow heater for heating the liquid and a spray device for applying the liquid to the items to be cleaned when one is selected Has flushing process by a control device. In addition, the dishwasher has a device for providing steam when a separate steam rinsing cycle, which runs between the pre-rinse cycle and the main rinse cycle, is activated. This device for providing the steam is arranged directly below the spraying device directly in the washing container and supplies the steam which escapes from the steam discharge openings into the washing container at any point in an uncontrolled manner by heating water in a separate chamber. The steam rinse serves to dissolve heavily soiled items to be cleaned and is initiated by the user via the control device when a corresponding program is selected. To decalcify the steam generator, the device responsible for providing the steam must be manually removed from the dishwasher and cleaned.
Aus der Deutschen Patentschrift DE 44 01 420 ist ein Arbeitsbehälter für eine Geschirrspülmaschine bekannt, das ein Heizelement mit einer teilweise mit verdampfbarer Flüs- sigkeit gefüllten Dampfkammer aufweist.A working container for a dishwasher is known from German Patent DE 44 01 420, which has a heating element with a steam chamber partially filled with vaporizable liquid.
Der Erfindung liegt die Aufgabe zu Grunde, eine Geschirrspülmaschine der beschriebenen Art zu schaffen, durch die das durch Bereitstellung von Dampf unterstützte Reinigungsergebnis für insbesondere stark verschmutztes Reinigungsgut verbessert wird.The invention is based on the object of creating a dishwasher of the type described, by means of which the cleaning result supported by the provision of steam is improved, in particular for heavily soiled items to be cleaned.
Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 erfindungsgemäß gelöst. Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben. Ausgehend von einer Geschirrspülmaschine mit einer Pumpe zum Umwälzen von Flüssigkeit, einem Durchlauferhitzer zum Erwärmen der Flüssigkeit und einer Sprüheinrichtung zum Aufbringen der Flüssigkeit auf das Reinigungsgut bei Auswahl eines Spülvorgangs durch eine Steuereinrichtung, sowie mit einer Einrichtung zur Bereitstellung von Dampf, weist gemäß dem Gegenstand der Erfindung die Einrichtung zur Bereitstellung des Dampfes einen Dampfspender und einen vom Dampfspender versorgten Dampfstrahler auf, die derart in der Geschirrspülmaschine eingebaut sind, dass durch den Dampfstrahler im Spülbehälter eine vorbestimmte, zur Aufnahme von besonderem Reinigungsgut vorgesehene Stelle mit Dampf beaufschlagt wird.This object is achieved according to the invention by the features of patent claim 1. Developments of the invention are specified in the subclaims. Starting from a dishwasher with a pump for circulating liquid, a continuous-flow heater for heating the liquid and a spray device for applying the liquid to the items to be cleaned when a washing process is selected by a control device, and with a device for providing steam, according to the subject of Invention, the device for providing the steam, a steam dispenser and a steam jet supplied by the steam dispenser, which are installed in the dishwasher in such a way that the steam jet in the washing container acts on a predetermined point intended for receiving special items to be cleaned with steam.
Durch den Gegenstand der Erfindung ergibt sich in vorteilhafter Weise eine Anordnung der zur Bereitstellung des Dampfes vorgesehenen Einrichtung mit voneinander getrennten Dampfspender und Dampfstrahler derart, dass vom Dampfstrahler immer dieselbe bestimmte Stelle im Spülbehälter, die zur Aufnahme des besonderen - z.B. stark verschmutzten - Reinigungsguts besonders gekennzeichnet und gestaltet werden kann, mit dem Dampf beaufschlagt wird. Ein unkontrolliertes Austreten des Dampfes an beliebigen Stellen in den gesamten Spülbehälter wird durch die Erfindung gerade vermieden, was zu einer Verbesserung des Reinigungsergebnisses bei größtmöglichem Nutzungsgrad des Dampfes führt und darüber hinaus nicht von der Aktivierung eines gesonderten Dampfspülvorgangs abhängt.The object of the invention advantageously results in an arrangement of the device provided for providing the steam with separate steam dispensers and steam jets in such a way that the steam jet always has the same specific location in the rinsing container that is used to hold the special - e.g. heavily soiled - items to be cleaned can be specially marked and designed with which steam is applied. An uncontrolled escape of the steam at any point in the entire washing container is just avoided by the invention, which leads to an improvement in the cleaning result with the greatest possible utilization of the steam and, moreover, does not depend on the activation of a separate steam flushing process.
Gemäß einer günstigen Weiterbildung der Erfindung ist die zur Aufnahme von besonderem Reinigungsgut vorgesehene vorbestimmte Stelle in der Nähe einer Spülbehälterwand eingerichtet. Dadurch lässt sich das Reinigungsergebnis weiter optimieren, da die einzige Austrittsstelle für den Dampf zur Beaufschlagung des besonderen Reinigungsguts im Grenzbereich des Spülbehälters liegt und das andere normale Reinigungsgut nicht tangiert.According to a favorable development of the invention, the predetermined location provided for receiving special items to be cleaned is set up in the vicinity of a washing compartment wall. This allows the cleaning result to be further optimized, since the only outlet point for the steam for the application of the special items to be cleaned is in the border area of the washing compartment and the other normal items to be cleaned are not affected.
Gemäß einer besonders günstigen Weiterbildung der Erfindung ist der Dampfspender parallel zu dem Durchlauferhitzer angeordnet und wird über ein dazwischen geschaltetes Ventil mit der Flüssigkeit aus dem gewählten Spülvorgang beaufschlagt. Somit befindet sich der Dampfspender im Hydraulikkreis der Geschirrspülmaschine, wodurch erst die Möglichkeit besteht, den Dampfspender mehrmals während eines Spülgangs automatisch mit Flüssigkeit zu füllen und diese zu verdampfen. Eines gesonderten Dampfspülgangs bedarf es nicht.According to a particularly advantageous development of the invention, the steam dispenser is arranged parallel to the instantaneous water heater and is supplied with the liquid from the selected rinsing process via a valve connected in between. The steam dispenser is thus located in the hydraulic circuit of the dishwasher, which means that there is only the possibility of the steam dispenser being automatically repeated several times during a wash cycle fill with liquid and evaporate it. There is no need for a separate steam rinse cycle.
Gemäß einer weiteren äußerst günstigen Ausgestaltung der Erfindung ist der Dampfstrahler mit einer kombinierten Dampf-Strahl-Düse versehen, die eine Austrittsöffnung für einen Flüssigkeitsstrahl und eine andere Austrittsöffnung für den Dampf aufweist. Damit können die im Dampferzeuger und/oder Dampfstrahler und/oder der Düse entstandenen Ablagerungen - vor allem die während dem Erhitzen der Flüssigkeit oder der Verdampfung gebildeten Kalkpartikel - ausgespült werden, ohne dass eine der obigen Einrichtungen dafür extra manuell ausgewechselt werden muss.According to a further extremely favorable embodiment of the invention, the steam jet is provided with a combined steam jet nozzle which has an outlet opening for a liquid jet and another outlet opening for the steam. The deposits formed in the steam generator and / or steam jet and / or the nozzle - in particular the lime particles formed during the heating of the liquid or the evaporation - can thus be rinsed out without one of the above devices having to be replaced manually.
Es hat sich auch als günstig erwiesen, wenn die Dampf-Strahl-Düse ein Zwei-Wege-Ventil aufweist, das die eine Austrittsöffnung schließt und die andere Austrittsöffnung öffnet. Dadurch wählt ein- und dasselbe Ventil einerseits den Weg für das Abstrahlen von Flüssigkeit und andererseits den Weg für das Austreten des Dampfes. Vorzugsweise sind bei der Dampf-Strahl-Düse die Austrittsöffnung für den Dampf nach oben und die Austrittsöffnung für den Flüssigkeitsstrahl zur Seite gerichtet. Gemäß einer alternativen Ausgestaltung der Erfindung können bei der Dampf-Strahl-Düse die Austrittsöffnung für den Dampf und die Austrittsöffnung für den Flüssigkeitsstrahl aber auch parallel gerichtet sein.It has also proven to be advantageous if the steam jet nozzle has a two-way valve which closes one outlet opening and opens the other outlet opening. As a result, one and the same valve on the one hand selects the path for the emission of liquid and on the other hand the path for the escape of the vapor. In the steam jet nozzle, the outlet opening for the steam is preferably directed upwards and the outlet opening for the liquid jet is directed to the side. According to an alternative embodiment of the invention, the outlet opening for the steam and the outlet opening for the liquid jet can also be directed in parallel in the steam jet nozzle.
Nach einer bevorzugten Weiterbildung der Erfindung ist das Zwei-Wege-Ventil als Doppelkugelschwimmer ausgebildet, der bei eingeschaltetem Dampfspender durch sein oberes kugelartig ausgebildetes Ende die Austrittsöffnung für den Flüssigkeitsstrahl schließt und der sich bei ausgeschaltetem Dampfspender und von unten geförderter Flüssigkeit durch sein unteres kugelartig ausgebildetes Ende nach oben bewegt und durch sein obe- res kugelartig ausgebildetes Ende die Austrittsöffnung für den Dampf schließt und die Austrittsöffnung für den Flüssigkeitsstrahl öffnet.According to a preferred development of the invention, the two-way valve is designed as a double ball float which, when the steam dispenser is switched on, closes the outlet opening for the liquid jet through its upper ball-shaped end and which closes through its lower ball-shaped end when the steam dispenser is switched off and liquid conveyed from below moved upward and through its upper spherical end closes the outlet opening for the steam and opens the outlet opening for the liquid jet.
Bei einer alternativen Lösung ist das Zwei-Wege-Ventil als Löffel-Kugelanordnung ausgebildet, die bei eingeschaltetem Dampfspender durch ein löffelartig ausgebildetes Ende die Austrittsöffnung für den Flüssigkeitsstrahl schließt, und deren kugelartig ausgebildetes Ende sich bei ausgeschaltetem Dampfspender und von unten geförderter Flüssigkeit nach oben bewegt sowie die Austrittsöffnung für den Dampf schließt und deren löffelartig ausgebildetes Ende die Austrittsöffnung für den Flüssigkeitsstrahl öffnet. Von besonderem Wert hat sich eine weitere Ausgestaltung der Er indung erwiesen, bei der durch die Austrittsöffnung für den Flüssigkeitsstrahl der Dampf-Strahl-Düse eine Flüssigkeit auf das im Spülbehälter angeordnete Sieb zur Siebreinigung ausgestrahlt wird. Damit kann die Düse nicht nur für den Austritt von Dampf an der vorbestimmten Stelle zu Reinigungszwecken für besonderes Reinigungsgut, sondern auch an anderer Stelle im Spülbehälter zu Reinigungszwecken für andere Einrichtungen, vorzugsweise für das häufig mit festen Partikeln stark verschmutzte Sieb, mitbenutzt werden. Dies ist ansonsten nur in einem gesonderten Reinigungsvorgang - meist manuell durch den Benutzer - und nicht automatisch möglich.In an alternative solution, the two-way valve is designed as a spoon-ball arrangement which, when the steam dispenser is switched on, closes the outlet opening for the liquid jet through a spoon-like end, and the spherical end of which moves upwards when the steam dispenser is switched off and the liquid conveyed from below as well as the outlet opening for the steam closes and the spoon-like end opens the outlet opening for the liquid jet. A further embodiment of the induction has proven to be of particular value, in which a liquid is emitted through the outlet opening for the liquid jet of the steam jet nozzle onto the sieve arranged in the rinsing container for screen cleaning. Thus, the nozzle can be used not only for the discharge of steam at the predetermined location for cleaning purposes for special items to be cleaned, but also elsewhere in the rinsing container for cleaning purposes for other facilities, preferably for the sieve, which is often heavily soiled with solid particles. Otherwise, this is only possible in a separate cleaning process - usually manually by the user - and not automatically.
Von Vorteil ist es auch, wenn durch den ausgeschalteten Dampfspender, den Dampfstrahler und die Dampf-Strahl-Düse eine klare Flüssigkeit zum Beseitigen von Ablagerungen gefördert wird. Durch die Verwendung einer Klarspülflotte verbessert sich das Ergebnis der Ausschwemmung von Rückständen einschließlich der Kalkpartikel in den genannten Einrichtungen nochmals.It is also advantageous if the switched off steam dispenser, the steam jet and the steam jet nozzle convey a clear liquid to remove deposits. The use of a rinse aid liquor improves the result of the flushing out of residues, including the lime particles, in the facilities mentioned.
Der Gegenstand der Erfindung wird anhand eines in Figuren dargestellten Ausführungsbeispiels näher erläutert. Im einzelnen zeigenThe object of the invention is explained in more detail with reference to an embodiment shown in figures. Show in detail
Figur 1 eine seitliche Innenansicht des Spülbehälters einer Geschirrspülmaschine gemäß der Erfindung ,FIG. 1 shows a side inside view of the washing compartment of a dishwasher according to the invention,
Figur 2 ein Blockschaltbild der Einrichtungen zur Bereitstellung von Dampf in der Geschirrspülmaschine,FIG. 2 shows a block diagram of the devices for providing steam in the dishwasher,
Figur 3 und Figur 4 die Dampf-Strahl-Düse des Dampfstrahlers mit eingebautem Zwei-Wege-Ventil in einer seitlichen Schnittansicht sowie einer Außenansicht, undFigure 3 and Figure 4, the steam jet nozzle of the steam jet with built-in two-way valve in a side sectional view and an external view, and
Figur 5 eine alternative Variante des Zwei-Wege-Ventils in der Schnittansicht.Figure 5 shows an alternative variant of the two-way valve in the sectional view.
Figur 1 zeigt eine seitliche Innenansicht eines Spülbehälters 2 einer Geschirrspülmaschine 1 gemäß der Erfindung, in dem ein oberer Geschirrkorb 3 und ein unterer Geschirrkorb 14 zur Aufnahme von Reinigungsgut, z.B. Geschirr- und Besteckteile, angeordnet sind. Die Geschirrkörbe 3, 14 bestehen bekanntlich jeweils aus Korbseitenwänden und einem Korbboden mit vertikal und horizontal verlaufenden Korbstreben und weisen üblicherweise schräg nach oben gerichtete parallele Stacheln auf, zwischen denen insbesondere flache Geschirrteile wie Teller, Untertassen etc. sicher im Spülbehälter 2 gehalten werden können. Der obere Geschirrkorb 3 ist über mehrere Laufrollen 6, die sich auf nahe den Spülbehälterseitenwänden angeordneten Korbführungsschienen 5 bewegen, aus dem Spülbehälter 2 ausziehbar ausgebildet. Ein Herausziehen kann nur bei geöffneter Tür 4 erfolgen, die frontseitig zum Schließen und Öffnen der Geschirrspülmaschine 1 angebracht ist und im oberen Bereich eine Bedienblende mit Anzeigeelementen und Pro- grammwahlschaltern zur Aktivierung unterschiedlicher Programme wie z.B. Spül- und Trocknungsvorgänge aufweist.Figure 1 shows a side inside view of a washing container 2 of a dishwasher 1 according to the invention, in which an upper crockery basket 3 and a lower crockery basket 14 for receiving items to be cleaned, for example crockery and cutlery, are arranged. The crockery baskets 3, 14 are known to each consist of basket side walls and a basket base with vertically and horizontally extending basket struts and usually have obliquely upwardly directed parallel spikes, between which flat items of crockery such as plates, saucers etc. can be securely held in the washing compartment 2. The upper crockery basket 3 is designed so that it can be pulled out of the washing container 2 by means of a plurality of rollers 6 which move on the basket guide rails 5 arranged near the washing container side walls. It can only be pulled out when the door 4 is open, which is attached to the front for closing and opening the dishwasher 1 and has an operating panel in the upper area with display elements and program selection switches for activating different programs, such as washing and drying processes.
Die Geschirrspülmaschine 1 verfügt zusätzlich über Sprüheinrichtungen, von denen eine Sprüheinrichtung 13 in Form eines Sprüharms unterhalb des unteren Geschirrkorbs 14 im Spülbehälter 2 angeordnet ist, zum Aufbringen einer Flüssigkeit - üblicherweise Wasser - auf das Reinigungsgut bei Auswahl eines Spülvorgangs durch eine mit dem Programmwahlschalter gekoppelten Steuereinrichtung. Eine - hier in der Seitenansicht nicht erkennbare - Pumpe wälzt die Flüssigkeit um, bevor sie einem - hier in der Seitenansicht ebenfalls nicht erkennbaren - Durchlauferhitzer, u.a. zum Erwärmen der Flüssigkeit und anschließend der Sprüheinrichtung 13 zugeleitet wird. Dieser Hydraulikkreis umfasst auch mehrere Zuleitungen und Ableitungen 11 , 12 für die Förderung der Spülflüssigkeit zum Reinigungsgut sowie für deren Rückförderung nach dem Spülvorgang. Eine der Ableitungen 11 ist an ein im Spülbehälter nahe dem Behälterboden angeordnetes Sieb 15 zum Sammeln von festen Teilen und Partikeln angeschlossen. In eine der Zuleitungen 12 des Hydraulikkreises zur Beförderung der Flüssigkeit ist ein Dampfspender 7 - in vorteilhafter Weise parallel zum Durchlauferhitzer - angeordnet, der zur Bereitstellung des Dampfes einen Dampfstrahler 8 mit angeschlossener Dampf-Strahl-Düse 9 versorgt. Dampfspender 7 und Dampfstrahler 8 bilden gemeinsam die Einrichtung zur Bereitstellung des Dampfes und sind derart in der Geschirrspülmaschine 1 eingebaut, dass durch den Dampfstrahler 8 im Spülbehälter 2 eine vorbestimmte, zur Aufnahme von besonderem Reinigungsgut 16 - im gewählten Beispiel eines stark verschmutzten Topfes, der sich im unteren Geschirrkorb 14 befindet - vorgesehene Stelle mit Dampf beaufschlagt wird. Die zur Aufnahme des besonderen Reinigungsguts 16 vorgesehene einzige und vorbestimm- te Stelle ist vorzugsweise gemäß dem Ausführungsbeispiel in der Nähe einer Spülbehälterwand - in diesem Beispiel der Spülbehälterrückwand 15 - eingerichtet. Dadurch lässt sich das Reinigungsergebnis weiter optimieren, da die einzige Austrittsstelle für den Dampf zur Beaufschlagung des Topfes 16 im Grenzbereich des Spülbehälters 2 liegt und das andere „normale" Reinigungsgut - eingeordnet im sonstigen Bereich des unteren Geschirrkorbs 14 - nicht tangiert.The dishwasher 1 also has spray devices, of which a spray device 13 in the form of a spray arm is arranged below the lower basket 14 in the washing container 2, for applying a liquid - usually water - to the items to be cleaned when a washing process is selected by a control device coupled to the program selector switch , A pump, which cannot be seen in the side view, circulates the liquid before it is fed to a continuous-flow heater, which is also not visible in the side view, for heating the liquid and then to the spray device 13. This hydraulic circuit also includes several supply lines and discharge lines 11, 12 for conveying the rinsing liquid to the items to be cleaned and for returning them after the rinsing process. One of the discharge lines 11 is connected to a sieve 15 arranged in the rinsing container near the container bottom for collecting solid parts and particles. In one of the feed lines 12 of the hydraulic circuit for conveying the liquid, a steam dispenser 7 is arranged - advantageously in parallel to the instantaneous heater - which supplies a steam jet 8 with a connected steam jet nozzle 9 to provide the steam. Steam dispenser 7 and steam jet 8 together form the device for providing the steam and are installed in the dishwasher 1 in such a way that the steam jet 8 in the dishwashing container 2 has a predetermined one, for taking up special items 16 to be cleaned - in the selected example of a heavily soiled pot which is located in the lower crockery basket 14 - the intended location is subjected to steam. The only and predetermined for receiving the special items to be cleaned 16 te position is preferably set up according to the embodiment in the vicinity of a rinsing tank wall - in this example, the rinsing tank rear wall 15. As a result, the cleaning result can be further optimized, since the only outlet point for the steam for loading the pot 16 is in the border area of the washing compartment 2 and the other “normal” items of washing - arranged in the other area of the lower crockery basket 14 - do not affect.
Durch den Gegenstand der Erfindung ergibt sich in vorteilhafter Weise eine Anordnung der zur Bereitstellung des Dampfes vorgesehenen Einrichtung mit voneinander getrennten Dampfspender 7 und Dampfstrahler 8 - in Verbindung mit Dampf-Strahl-Düse 9 - der- art, dass vom Dampfstrahler 8 immer dieselbe vorbestimmte Stelle im Spülbehälter 2, die zur Aufnahme des besonderen Reinigungsguts 16 besonders gekennzeichnet und gestaltet werden kann - z.B. ohne die üblichen Stacheln, aber mit einer gesonderten Arretierungseinrichtung im unteren Geschirrkorb 14 - , mit dem Dampf beaufschlagt wird. Ein unkontrolliertes beliebiges Austreten des Dampfes in den gesamten Spülbehälter 2 wird durch die Erfindung gerade vermieden, was zu einer Verbesserung des Reinigungsergebnisses bei größtmöglichem Nutzungsgrad des Dampfes führt und darüber hinaus nicht von der Aktivierung eines gesonderten Dampfspülvorgangs abhängt.The object of the invention advantageously results in an arrangement of the device provided for providing the steam with separate steam dispenser 7 and steam jet 8 - in conjunction with steam jet nozzle 9 - such that the steam jet 8 always has the same predetermined position in the washing compartment 2, which can be specially marked and designed to accommodate the special items 16 to be cleaned - for example without the usual spikes, but with a separate locking device in the lower crockery basket 14 - with which steam is applied. An uncontrolled escape of the steam into the entire rinsing container 2 is just avoided by the invention, which leads to an improvement in the cleaning result with the greatest possible utilization of the steam and, moreover, does not depend on the activation of a separate steam rinsing process.
Figur 2 zeigt ein Blockschaltbild der Einrichtungen zur Bereitstellung des Dampfes in der Geschirrspülmaschine gemäß Figur 1. Dabei befinden sich in besonders günstiger Weise der Dampfspender 7, vorzugsweise parallel zu dem Durchlauferhitzer 18 angeordnet, und der vom Dampfspender 7 versorgte und mit Dampf-Strahl-Düse 9 versehene Dampfstrahler 8 im Hydraulikkreis der Geschirrspülmaschine. Dadurch erst ergibt sich die besondere Möglichkeit, den Dampfspender 7 mehrmals während eines Spülgangs automatisch mit Flüssigkeit zu füllen und diese zu verdampfen. Eines gesonderten Dampfspülgangs bedarf es nicht, was zusätzlichen Steuerungs- und Zeitaufwand vermeidet. Dabei wird die Flüssigkeit - vorzugsweise klares Wasser - über die vorgeschaltete Umwälzpumpe 17 gefördert, durch den Durchlauferhitzer 18 - sowohl im ausgeschalteten als auch im eingeschalteten Zustand für Erwärmen des Wassers - transportiert und zu der Sprüheinrich- tung 13 sowie in einem parallelen Weg über ein Einlassventil 19 zu dem Dampfspender 7 weitergeleitet. Parallel zu dem am Eingang angeordneten Ventil 19 ist am Ausgang des Dampfspenders 7 ein Rückschlagventil 20 aus Sicherheitsgründen eingesetzt. Der Hydraulikkreis schließt sich - gestrichelt dargestellt - durch Ableitung der Spülflüssigkeit nach einem Spülvorgang und Zuleitung von neuer Flüssigkeit über die Umwälzpumpe 17 in den Wasserkreislauf.FIG. 2 shows a block diagram of the devices for providing the steam in the dishwasher according to FIG. 1. The steam dispenser 7 is located in a particularly favorable manner, preferably arranged parallel to the instantaneous water heater 18, and the one supplied by the steam dispenser 7 and with a steam jet nozzle 9 provided steam jet 8 in the hydraulic circuit of the dishwasher. This is the only way to automatically fill the steam dispenser 7 with liquid several times during a rinse cycle and evaporate it. A separate steam rinse cycle is not required, which avoids additional control and expenditure of time. The liquid - preferably clear water - is conveyed via the upstream circulation pump 17, transported by the instantaneous heater 18 - both in the switched-off and in the switched-on state for heating the water - and to the spray device 13 and in a parallel way via an inlet valve 19 forwarded to the steam dispenser 7. In parallel to the valve 19 arranged at the inlet, a check valve 20 is inserted at the outlet of the steam dispenser 7 for safety reasons. The hydraulic circuit closes - shown in dashed lines - by draining off the flushing liquid a rinsing process and supply of new liquid via the circulating pump 17 into the water cycle.
In Figur 3 und Figur 4 ist die Dampf-Strahl-Düse 9 mit eingebautem Zwei-Wege-Ventil 25 und 25' in einer seitlichen Schnittansicht - Figur 3 - so ie einer Außenansicht - Figur 4 - dargestellt. Der Dampfstrahler 8 ist mit einer kombinierten Dampf-Strahl-Düse 9 versehen, die eine Austrittsöffnung 24 für einen Flüssigkeitsstrahl und eine andere Austrittsöffnung 23 für den Dampf aufweist. Durch die voneinander getrennten Strahl- und Dampfwege können die zwangsläufig mit der Zeit im Dampferzeuger und/oder Dampfstrahler und/oder der Düse entstandenen Ablagerungen - vor allem die während dem Erhitzen der Flüssig- keit oder der Verdampfung gebildeten Kalkpartikel - beispielsweise mit Wasser ausgespült werden, ohne dass eine der obigen Einrichtungen dafür extra manuell ausgewechselt zu werden braucht. Durch die Verwendung einer Klarspülflotte verbessert sich das Ergebnis der Ausschwemmung von Rückständen einschließlich der Kalkpartikel in den genannten Einrichtungen nochmals.In FIG. 3 and FIG. 4, the steam jet nozzle 9 with built-in two-way valve 25 and 25 'is shown in a side sectional view - FIG. 3 - so an external view - FIG. 4. The steam jet 8 is provided with a combined steam jet nozzle 9 which has an outlet opening 24 for a liquid jet and another outlet opening 23 for the steam. Due to the separate jet and steam paths, the deposits that inevitably arise in the steam generator and / or steam jet and / or the nozzle - especially the lime particles formed during the heating of the liquid or the evaporation - can be rinsed out with water, for example. without having to replace one of the above devices manually. The use of a rinse aid liquor improves the result of the flushing out of residues, including the lime particles, in the facilities mentioned.
Es hat sich dabei als besonders günstig erwiesen, wenn die Dampf-Strahl-Düse 9 mit einem Zwei-Wege-Ventil 25 versehen ist, das die eine Austrittsöffnung 24 schließt und die andere Austrittsöffnung 23 gleichzeitig öffnet bzw. offen lässt. Dadurch wählt ein- und dasselbe Ventil 25 einerseits den Weg für das Abstrahlen von Flüssigkeit und anderer- seits den Weg für das Austreten des Dampfes selbsttätig aus. Vorzugsweise sind bei der Dampf-Strahl-Düse 9 die Austrittsöffnung 23 für den Dampf nach oben und die Austritts- öffnung 24 für den Flüssigkeitsstrahl zur Seite gerichtet. Gemäß einer alternativen Ausgestaltung der Erfindung können bei der Dampf-Strahl-Düse 9 die Austrittsöffnung für den Dampf und die Austrittsöffnung für den Flüssigkeitsstrahl aber auch parallel gerichtet sein, siehe auch den Aufbau des Zwei-Wege-Ventils gemäß Figur 5.It has proven to be particularly favorable if the steam jet nozzle 9 is provided with a two-way valve 25 which closes one outlet opening 24 and simultaneously opens or leaves the other outlet opening 23 open. As a result, one and the same valve 25 automatically selects the path for emitting liquid and, on the other hand, the path for the vapor to escape. In the case of the steam jet nozzle 9, the outlet opening 23 for the steam is preferably directed upwards and the outlet opening 24 for the liquid jet is directed to the side. According to an alternative embodiment of the invention, the outlet opening for the steam and the outlet opening for the liquid jet can also be directed parallel in the steam jet nozzle 9, see also the structure of the two-way valve according to FIG. 5.
Das Zwei-Wege-Ventil 25 der Düse 9 ist besonders vorteilhaft als Doppelkugelschwimmer - nach Art einer Hantel mit zwei an den Enden angebrachten Kugeln - aufgebaut, der bei eingeschaltetem Dampfspender durch sein oberes kugelartig ausgebildetes Ende 22 die für den Flüssigkeitsstrahl vorgesehene Austrittsöffnung 24 schließt und der sich bei ausgeschaltetem Dampfspender und von unten - über den angekoppelten Dampfstrahler 8 - in den Innenraum der Düse 9 geförderter, einfließender Flüssigkeit durch sein unteres kugelartig ausgebildetes Ende 21 nach oben in Richtung der anderen Austrittsöffnung 23 bewegt - aufschwimmt - und durch sein oberes kugelartig ausgebildetes Ende 22 diese Austrittsöffnung 23 für den Dampf schließt und die für den Flüssigkeitsstrahl vorgesehene Austrittsöffnung 24 öffnet, durch die dann das Wasser seitlich ausgespült wird. Die Darstellung in Figur 4 zeigt in einer Außenansicht die Ankopplung des Dampfstrahlers 8 an das Gehäuse 9' der Dampf-Strahl-Düse mit den beiden zur Seite und nach oben gerichte- ten Austrittsöffnungen 23, 24.The two-way valve 25 of the nozzle 9 is particularly advantageously constructed as a double ball float - in the manner of a dumbbell with two balls attached to the ends - which, when the steam dispenser is switched on, closes the outlet opening 24 intended for the liquid jet through its upper spherical end 22 and which, when the steam dispenser is switched off and from below - via the coupled steam jet 8 - is conveyed into the interior of the nozzle 9 and flowing in liquid through its lower spherical end 21 upwards in the direction of the other outlet opening 23 moves - floats - and through its upper spherical end 22 closes this outlet opening 23 for the steam and opens the outlet opening 24 provided for the liquid jet, through which the water is then rinsed out laterally. The illustration in FIG. 4 shows an external view of the coupling of the steam jet 8 to the housing 9 'of the steam jet nozzle with the two outlet openings 23, 24 directed to the side and upwards.
Bei einer alternativen Lösung des Zwei-Wege-Ventils 25' gemäß der Schnittansicht in Figur 5 ist dieses als Löffel-Kugelanordnung - nach Art einer Waage mit einem Löffel an dem einen Ende und einer Kugel an dem anderen Ende - ausgebildet, die bei eingeschal- tetem Dampfspender durch das löffelartig ausgebildete Ende 27 die für den Flüssigkeitsstrahl vorgesehene Austrittsöffnung 24' schließt, und deren kugelartig ausgebildetes Ende 26 sich bei ausgeschaltetem Dampfspender und von unten in den Innenraum der Düse einfließender, geförderter Flüssigkeit nach oben in Richtung der anderen parallel liegenden Öffnung bewegt sowie diese für den Dampf vorgesehene Austrittsöffnung 23' schließt und deren löffelartig ausgebildetes Ende die Austrittsöffnung 24' für den Flüssigkeitsstrahl öffnet.In an alternative solution of the two-way valve 25 'according to the sectional view in FIG. 5, this is designed as a spoon-ball arrangement - in the manner of a balance with a spoon at one end and a ball at the other end - which when switched on tetem steam dispenser through the spoon-shaped end 27 closes the outlet opening 24 'provided for the liquid jet, and its spherical end 26 moves upwards in the direction of the other parallel opening when the steam dispenser is switched off and the conveyed liquid flowing into the interior of the nozzle from below as well as the outlet opening 23 'provided for the steam and the spoon-like end of which opens the outlet opening 24' for the liquid jet.
Von besonderem Wert hat sich eine weitere Ausgestaltung der Erfindung erwiesen, bei der durch die jeweils für das Austreten eines Flüssigkeitsstrahls vorgesehene Austrittsöff- nung 24, 24' der Dampf-Strahl-Düse 9 eine Flüssigkeit - am besten klares Wasser - auf das im Spülbehälter angeordnete Sieb - siehe Bezugszeichen 10 in Figur 1 - zur Siebreinigung ausgestrahlt wird. Damit kann die Düse 9 nicht nur für den Austritt von Dampf an der vorbestimmten Stelle zu Reinigungszwecken für besonderes Reinigungsgut wie einen stark verschmutzten Topf, sondern auch an anderer Stelle im Spülbehälter zu Reini- gungszwecken für andere Einrichtungen, vorzugsweise für das häufig mit festen Partikeln stark verschmutzte Sieb, mitbenutzt werden. Dies ist ansonsten nur in einem gesonderten Reinigungsvorgang - meist manuell durch den Benutzer - und nicht automatisch wie bei der erfindungsgemäß gestalteten Geschirrspülmaschine möglich. A further embodiment of the invention has proven to be of particular value, in which through the outlet openings 24, 24 'of the steam jet nozzle 9 which are provided for the exit of a liquid jet, a liquid - preferably clear water - is placed on the one arranged in the washing container Sieve - see reference numeral 10 in Figure 1 - is emitted for screen cleaning. Thus, the nozzle 9 can be used not only for the discharge of steam at the predetermined location for cleaning purposes for special items to be cleaned, such as a heavily soiled pot, but also elsewhere in the rinsing container for cleaning purposes for other facilities, preferably for that which often contains solid particles dirty strainer, can also be used. Otherwise, this is only possible in a separate cleaning process - usually manually by the user - and not automatically as in the dishwasher designed according to the invention.

Claims

Patentansprüche claims
1. Geschirrspülmaschine zur Aufnahme von in einem Spülbehälter (2) angeordnetem Reinigungsgut, mit einer Pumpe (17) zum Umwälzen von Flüssigkeit, einem Durchlauferhitzer (18) zum Erwärmen der Flüssigkeit und einer Sprüheinrichtung1. Dishwasher for receiving items to be cleaned arranged in a washing container, with a pump (17) for circulating liquid, a continuous-flow heater (18) for heating the liquid and a spray device
(13) zum Aufbringen der Flüssigkeit auf das Reinigungsgut bei Auswahl eines Spülvorgangs durch eine Steuereinrichtung, sowie mit einer Einrichtung zur Bereitstellung von Dampf, dadurch gekennzeichnet, dass die Einrichtung zur Bereitstellung des Dampfes einen Dampfspender (7) und einen vom Dampfspender (7) versorgten Dampfstrahler (8, 9) aufweist, die derart in der Geschirrspülmaschine (1) eingebaut sind, dass durch den Dampfstrahler (8, 9) im Spülbehälter (2) eine vorbestimmte, zur Aufnahme von besonderem Reinigungsgut (16) vorgesehene Stelle mit Dampf beaufschlagt wird.(13) for applying the liquid to the items to be cleaned when a rinsing process is selected by a control device and with a device for providing steam, characterized in that the device for providing the steam supplies a steam dispenser (7) and one supplied by the steam dispenser (7) Has steam jets (8, 9) which are installed in the dishwasher (1) in such a way that the steam jet (8, 9) in the washing compartment (2) acts on a predetermined point intended to accommodate special items to be cleaned (16) ,
2. Geschirrspülmaschine nach Anspruch 1 dadurch gekennzeichnet, dass die zur Aufnahme von besonderem Reinigungsgut (16) vorgesehene vorbestimmte Stelle in der Nähe einer Spülbehälterwand (15) eingerichtet ist.2. Dishwasher according to claim 1, characterized in that the predetermined location provided for receiving special items to be cleaned (16) is arranged in the vicinity of a washing compartment wall (15).
3. Geschirrspülmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Dampfspender (7) parallel zu dem Durchlauferhitzer (18) angeordnet ist und über ein dazwischen geschaltetes Ventil (19) mit der Flüssigkeit aus dem gewählten Spülvorgang beaufschlagt wird.3. Dishwasher according to one of the preceding claims, characterized in that the steam dispenser (7) is arranged parallel to the instantaneous water heater (18) and the liquid from the selected washing process is applied via an interposed valve (19).
4. Geschirrspülmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Dampfstrahler (8, 9) mit einer kombinierten Dampf-Strahl- Düse (9) versehen ist, die eine Austrittsöffnung (24) für einen Flüssigkeitsstrahl und eine andere Austrittsöffnung (23) für den Dampf aufweist.4. Dishwasher according to one of the preceding claims, characterized in that the steam jet (8, 9) is provided with a combined steam jet nozzle (9) which has an outlet opening (24) for a liquid jet and another outlet opening (23) for the steam.
5. Geschirrspülmaschine nach Anspruch 4, dadurch gekennzeichnet, dass die5. Dishwasher according to claim 4, characterized in that the
Dampf-Strahl-Düse (9) ein Zwei-Wege-Ventil (25, 25') aufweist, das die eine Austrittsöffnung (24, 24') schließt und die andere Austrittsöffnung (23, 23') öffnet. Steam jet nozzle (9) has a two-way valve (25, 25 ') which closes one outlet opening (24, 24') and opens the other outlet opening (23, 23 ').
6. Geschirrspülmaschine nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass bei der Dampf-Strahl-Düse (9) die Austrittsöffnung (23) für den Dampf nach oben und die Austrittsöffnung (24) für den Flüssigkeitsstrahl zur Seite gerichtet sind.6. Dishwasher according to claim 4 or 5, characterized in that in the steam jet nozzle (9) the outlet opening (23) for the steam upwards and the outlet opening (24) for the liquid jet are directed to the side.
7. Geschirrspülmaschine nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass bei der Dampf-Strahl-Düse (9) die Austrittsöffnung (23') für den Dampf und die Austrittsöffnung (24') für den Flüssigkeitsstrahl parallel gerichtet sind.7. Dishwasher according to claim 4 or 5, characterized in that in the steam jet nozzle (9) the outlet opening (23 ') for the steam and the outlet opening (24') for the liquid jet are directed in parallel.
8. Geschirrspülmaschine nach einem der Ansprüche 5 bis 7, dadurch gekennzeich- net, dass das Zwei-Wege-Ventil (25) als Doppelkugelschwimmer ausgebildet ist, der bei eingeschaltetem Dampfspender (7) durch sein oberes kugelartig ausgebildetes Ende (22) die Austrittsöffnung (24) für den Flüssigkeitsstrahl schließt und der sich bei ausgeschaltetem Dampfspender (7) und von unten geförderter Flüssigkeit durch sein unteres kugelartig ausgebildetes Ende (21) nach oben bewegt und durch sein oberes kugelartig ausgebildetes Ende (22) die Austrittsöffnung (23) für den Dampf schließt und die Austrittsöffnung (24) für den Flüssigkeitsstrahl öffnet.8. Dishwasher according to one of claims 5 to 7, characterized in that the two-way valve (25) is designed as a double ball float which, when the steam dispenser (7) is switched on, has the outlet opening (22) through its upper spherical end (22). 24) for the liquid jet closes and which, when the steam dispenser (7) is switched off and liquid is conveyed from below, moves upward through its lower spherical end (21) and through its upper spherical end (22) the outlet opening (23) for the steam closes and the outlet opening (24) for the liquid jet opens.
9. Geschirrspülmaschine nach einem der Ansprüche 5 bis 7, dadurch gekennzeich- net, dass das Zwei-Wege-Ventil (25') als Löffel-Kugelanordnung ausgebildet ist, die bei eingeschaltetem Dampfspender (7) durch ein löffelartig ausgebildetes Ende (27) die Austrittsöffnung (24') für den Flüssigkeitsstrahl schließt, und deren kugelartig ausgebildetes Ende (26) sich bei ausgeschaltetem Dampfspender (7) und von unten geförderter Flüssigkeit nach oben bewegt sowie die Austrittsöffnung (23') für den Dampf schließt und deren löffelartig ausgebildetes Ende (27) die Austrittsöffnung (24') für den Flüssigkeitsstrahl öffnet.9. Dishwasher according to one of claims 5 to 7, characterized in that the two-way valve (25 ') is designed as a spoon-ball arrangement which, when the steam dispenser (7) is switched on, has a spoon-like end (27) The outlet opening (24 ') for the liquid jet closes, and its spherical end (26) moves upwards when the steam dispenser (7) is switched off and liquid is being pumped from below, and the outlet opening (23') for the steam closes and its spoon-shaped end ( 27) the outlet opening (24 ') for the liquid jet opens.
10. Geschirrspülmaschine nach einem Ansprüche 4 bis 9, dadurch gekennzeichnet, dass durch die Austrittsöffnung (24, 24') für den Flüssigkeitsstrahl der Dampf- Strahl-Düse (9) eine Flüssigkeit auf das im Spülbehälter (2) angeordnete Sieb (10) zur Siebreinigung ausgestrahlt wird. 10. Dishwasher according to one of claims 4 to 9, characterized in that through the outlet opening (24, 24 ') for the liquid jet of the steam jet nozzle (9) a liquid onto the sieve (10) arranged in the washing container (2) Screen cleaning is broadcast.
1. Geschirrspülmaschine nach einem der Ansprüche 4 bis 10, dadurch gekennzeichnet, dass durch den ausgeschalteten Dampfspender (7), den Dampfstrahler (8) und die Dampf-Strahl-Düse (9) eine klare Flüssigkeit zum Beseitigen von Ablagerungen gefördert wird. 1. Dishwasher according to one of claims 4 to 10, characterized in that a clear liquid for removing deposits is conveyed by the switched off steam dispenser (7), the steam jet (8) and the steam jet nozzle (9).
EP02792807A 2001-12-28 2002-11-26 Dishwasher for receiving articles to be cleaned that are arranged in a washing compartment Expired - Lifetime EP1460927B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10164503A DE10164503A1 (en) 2001-12-28 2001-12-28 Dishwasher for holding items to be cleaned arranged in a washing container
DE10164503 2001-12-28
PCT/EP2002/013314 WO2003055373A1 (en) 2001-12-28 2002-11-26 Dishwasher for receiving articles to be cleaned that are arranged in a washing compartment

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EP1460927A1 true EP1460927A1 (en) 2004-09-29
EP1460927B1 EP1460927B1 (en) 2009-02-11

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EP (1) EP1460927B1 (en)
KR (1) KR20040076876A (en)
AT (1) ATE422323T1 (en)
AU (1) AU2002358543A1 (en)
DE (2) DE10164503A1 (en)
ES (1) ES2321818T3 (en)
WO (1) WO2003055373A1 (en)

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US6997196B2 (en) 2006-02-14
ES2321818T3 (en) 2009-06-12
EP1460927B1 (en) 2009-02-11
DE10164503A1 (en) 2003-07-17
DE50213276D1 (en) 2009-03-26
AU2002358543A1 (en) 2003-07-15
ATE422323T1 (en) 2009-02-15
US20040261824A1 (en) 2004-12-30
WO2003055373A1 (en) 2003-07-10
KR20040076876A (en) 2004-09-03

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