Method of operating a dishwasher when a multi-phase detergent with several active agents is used

0001The invention relates to a dishwasher according to the preamble of claim 1 and two methods for operating a Dish washer according to the preamble of claim 10. as well as according to the preamble of claim thirteenth

0002There are now for some time called. 3in1 Kombinationspräpa = rate for use in dishwashers available, the together a cleaning substance, a Enthärtungssubstanz and a Klarspülsubstanz included and the rinsing of the dishwasher simultaneously at a given time are supplied. This 3in1 combination preparations are squeezed Tablet form called. 3in1 Tabs as well as 3in1 powder available. The 3in1 combination preparations may be in provided Metering devices of the dishwasher are inserted, in this case they are at a particular time, the determined by the rinsing program the dishwasher is metered into the washing compartment. On the other hand, they may also by the user of the dishwasher in the dishwasher, z. B. in the cutlery basket, before turning the Wash program are placed. The user of a dishwasher today is generally more than one selectable the set wash program for cleaning in the dishwasher soiled ware available. As selectable Washing programs are sufficiently programs under the name Short program Normal program Intensive program, eco program, for synonyms Tendings also various exist, known. Since the use of 3in1 combination preparations by the user of the dishwasher have the customer complaints with the manufacturers of Dishwashers heaped. For the cleaning and / or Drying results of the cleaned in the dishwasher Ware have in some cases dramatically when using 3in1 preparations compared with conventional individual metering the corresponding substances deteriorated. particularly problematic has proven that on the one hand the user the prescribed location of the 3in1 combination preparation not observed in the dishwasher, so some the 3in1 tabs in the dishwasher Laying, while by the manufacturer, an exclusively use prescribed by metering. Further, the The manufacturers of the 3in1 combination preparations concerning. The Selection of a suitable washing program is not appropriate, as the user of the dishwasher generally indeed know which he wash program depending on the contamination and must select Antrocknungsgrades of dirt particles, but no intimate knowledge of the course of the wash program to has. This knowledge implies the manufacturer of the 3in1 combination preparation the user and thereby allows further completely ignores the fact that different market 3in1 combination preparations are present, the self-dependency resolve various parameters differently and accordingly at various times its highest effectiveness achieve. To work a few available on the market 3in1 combination preparations for a so-called. "dilution principle" (Also known as the Carry over. principle), ie at the start of cleaning is the 3in1 combination preparation added and starts to dissolve. Here, the rinse aid is mostly first in a high concentration, ie added overdosed and it is assumed that as a result of carryover in Spülwasserresten and adhesions of the dissolved Rinse aid to the ware, Spülbehälterwänden and the ceiling of the Washing compartment as well as in the supply lines, the concentration in the Rinse cycle yet sufficient to provide an especially good drying result to achieve. Another embodiment of 3inl-combination preparation provides that initially only the Cleaner and softener dissolve and rinse aid, which in encapsulated 3in1 combination preparation, eg., in the form of a wachsumhüllten pearl present themselves only to temperature and / or during the clear rinsing dissolves pH-dependent. While using a wash program, which already in the program section Cleaning with high temperatures works and / or where the duration of the cleaning process is selected very long, which generally at an intensive program is common is the Rinse aid of the second type, however, already resolved. Of the Rinse aid of the first type has the particular disadvantage that when you run multiple wash program before Rinse such. As cleaning, intermediate rinsing, the latter known to be between the program sections cleaning and Rinsing is switched dissolves to schnel1 while through multiple Spülflüssigkeitswechsel in the program section Rinse no longer present in sufficient concentration is. Another flaw in the use of 3in1 combination preparations may occur if the user of the Dishwasher metering by inserting, z. B. a 3in1 Tabs, before the start of the washing program at any Place the dishwasher, but not in the Dosierkombination performs. Here z. B. starts in the program section prewash at least the detergent and softener to dissolve, whereby generally was observed in laboratory experiments, that the dissolution behavior of the 3in1 combination preparations even in water, which is essentially having feed temperature, is very good. By pumping is the following program sections cleaning, possibly provided Program segments between, rinse, the Substances of 3in1 combination preparation in a lower Concentration available, what direct impact on both the cleaning and the drying result of the dishes has deteriorated and this generally.

0003The object of the invention, a dishwasher and a propose method for operating a dishwasher, at least overcome one of the disadvantages mentioned above deploy and a washing program, which on the Use of combination products with multiple active ingredients adapted or will be adapted, where the user Basic usage of the previously known washing programs continue to be made possible.

0004The abovementioned object is achieved by a dishwasher according to the features of claim 1 and by a method solved according to the features of claim 11.

0005According to the apparatus of the proposed invention is at a Dishwasher at least one wash program such. B. Intensive program Normal program Kurzprogrämm, eco program, selectable by the user of the dishwasher. The Selection means are usually a control panel of Dishwasher and are well known as such.

0006The invention provides a means for engaging an additional function provided, through which in a switch this Function at least one parameter of the selected wash program with regard to the use of a combined preparation is changeable with several active substances. As a consequence, that the user selected wash program as intensive program, Normal program, short program, eco program, on the use of a combination product, the particular Cleaning substance Enthärtungssubstanz and Klarspülsubstanz includes, will be adjusted automatically. That is, with activated additional function is a corresponding signal to the given control unit, which automatically adapting the respective depending on the user selected washing program on the use of makes of combination products. For this purpose, for example, different control flow routines in microcontroller the control unit stored, is resorted to, and / or on various parameters of the washing programs, such as temperature, Duration of a particular Spülprogrammabschnittes, Spülflüssigkeitsfüllvolumen, pH, among others is first defined or intervened and this changed hereby. An alternative Solution represents an additional function during a shutdown a switching means acting according to the invention. In another Embodiment of the invention is a specially designed Wash program for special use with a combined preparation among other washing programs as such selectable itself.

0007Preferably, the additional function is the use of a combination product 3in1 designed, this combination preparation as more specific substances for cleaning the tableware essentially only cleaner substance Enthärtungssubstanz and contains rinse aid. Regardless of these constituents, can 3in1 combination product, other substances exhibit whose direct or indirect impact on the Cleaning and drying results of individual wash program and the total cleaning result of the washing program are of secondary importance. If other more specific Substances of the combined preparation is not explicitly are mentioned, but these are provided known and capable of from the subject invention comprises with.

0008It is a further switching means for switching on the additional function , wherein this preferably in the diaphragm support of the dishwasher among other selection means and / or display means is localized. Another possibility the switching means to order, offers the dosing of the combination product, in which the combination preparation is filled preferably is. In the embodiment of the switching means are most diverse known configurations, such as rotary control Button or the like is conceivable. Further, also an actuator a switching means by a user-specific selection possible, by selection in a menu-driven device selection For example, in a display screen or networked home devices via a graphical user interface or possibly a speech recognition system may be switched on.

0009The dishwasher is provided by at least one Sensor use of a combination product in particular a 3in1 combination preparation detectable, so that is distinguishable for the execution design for a, if a combination preparation according to the dilution principle works, or a combination product which the rinse aid until dissolves in the rinse phase pH and / or temperature-dependent, is used. Secondly, can Repeated sensor measurement z. B. concentration throughout the Spülprogrammablaufes and / or pH changes and / or changes the degree of hardness of the washing liquid to be detected, Conclusions as to the concentration of the individual active substances Allow the 3in1 combination product, with the result that modifies the program flow at any appropriate time will.

0010As sensors at least one of the sensors is as a chemical and / or acoustic and / or thermal and / or optical and / or pneumatic sensor type formed. This may in Number and specific detection feature different be designed. Further, an evaluation of the sensor signals both as regards the adjustment of the Spülprogrammablaufes regarding the use of 3in1 combination preparation as well as for the design of other Parameters of the entire Spülprogrammablaufes recyclable. Further alternatively, at least an intended chemical Sensor with appropriately selected receptors of the detection z. B. several simultaneously occurring substances, such as Cleaners and softeners and / or rinse aid, the use of a recognize the combined preparation and even without a switching the additional function to the program sequence control the use a combination product signal. By possibly repeated control measurements and / or in comparison with other Sensor measurements during program execution is to use a combination product closed and the flow changes accordingly. Particularly preferred is Currently, the use of a sensor which at least the pH and / or the temperature and / or the hardness of the washing liquid recognizes.

0011The / the provided sensors detect continuously or intermittently during a program or individual Wash program whose timings and timings by program control can be predetermined, of individual program parameters, z. B. with reference to an actual target value comparison and / or a difference value and / or the change curve of a parameter such as pH, temperature, turbidity, foaming, concentration, Hardness whether a particular active substance of Combination preparation for. Example, a predetermined minimum or maximum value is above or below. Further, z. B. depending a difference value, which z. B. manufacturers dependent from the 3in1 combination product may give themselves, as well as with regard to other parameters such as the typical concentration jumps, Dissolution temperatures or parameter combinations such as pH and concentration or concentration and temperature the Spülprogrammäblaufes result. For a determinable period a Spülprogrammablaufes or over the entire duration of the washing program is also the change of at least one detected parameter of the washing program and evaluated. So are, for. example, with regard to the course of the pH value of the washing liquid Conclusions as to the concentration of the individual Active substances of the 3in1 combination preparation possible. So is Currently, the evaluation of the pH value can be carried out in such a way that the program section cleaning a maximum basic pH represents, either in the program section clear rinsing a predetermined value must be less than, or whose Change History, z. B. in a predetermined characteristic field, is predefined within predeterminable tolerances or pH jumps (Sudden change in pH) within predefined Periods are determined or otherwise Time constants are determined for their appearance, for example by reaching the opening temperature of an enclosed liquid rinse. According to the invention, such sensor measurement is switched on Additional function for adapting a Spülprogrammablaufes to the use of a combination product for the active engagement in the program sequence used to be at who select a special designed Spülprogrammablaufes this is first a kind of control function to determine whether during program execution actually a combination product is used, or at least a more specific substance available at the specified time in sufficient concentration is, adjustments can optionally Spülprogrammablaufes done.

0012A suitable method of evaluation of the sensor measurement signals z. B. the value or change certain parameters of the Wash program as turbidity, pH, foaming, concentration, etc., singly water hardness and in appropriate combinations to characteristic points of the time Spülprogrammablaufes, in terms of their qualitative and quantitative occurrence as well as their delay times to determine among themselves. For this purpose, within a determinable time sections or Intervals at least determined individual parameter values ​​and this an actual desired value adjustment, a difference value formation or a threshold value interrogation or undergo changes determined against preset or in the program sequence Values ​​may be applied which all comparisons are in tables or as default values ​​in at least one memory unit the program control are stored. In networked Household appliances, this storage unit outside the be localized dishwasher. Further, in the memory unit certain program states storable whose Combination Fixtures for example are not desirable storable and this may prompt the user to perform certain actions. Such not yield desired constellations for example in the program section prewash if increased Foaming and / or significant pH fluctuations occur or a predetermined Rinse aid during all Program sections below or Klarspülerkonzentrationssprünge independent of a particular temperature or temperature profile occur. The user can accordingly prompted the error that occurred situation z. B. be the insertion of a combination product in the Dosierkombination making or the program is terminated to user-dependent re-commissioning of the Dishwasher takes place or the recognized as faulty Measurement result is at least indicative.

0013In program section prewash or clean can be provided be that the date of the actual metering of 3in1 combination product is also monitored, eg. B. by a sensor aküstischen the case of a tablet from the Dosing is detected in the washing. Other detection options offer optical sensors such. B. reinforced Foaming register or chemical sensors the change of the pH value of the washing liquid to evaluate.

0014With further advantage, in an optionally modified combination preparation, in the z. B. an enzymatic cleaner substance with an efficacy temperature limit of about 30 ° C and a Rinse aid with an opening temperature at about 58 ° C is included, at the same time shortened provided program sections, and thus shorter resolution time, by brief, possibly also repeated switching on and / or controlled or regulated power output of the heating means in the process sections Pre-rinse and / or intermediate rinsing, the rinse liquid preferably at the end of each method section heated, so that the following procedural stages Cleaning or rinsing which operated with hot washing liquid are the respective chemical substance their full can develop better and longer efficacy. By the Preheating or enhanced heating of the washing liquid at the end the preceding Spülprogrammabschnittes is dissolving and thus the effectiveness of the cleaner or rinse aid for Duration of each program section improved. The case supplied Energy is the activation energy comparable. In a provided temperature control or temperature control can dissolution time, concentration, exposure time, Date of the release of a chemical substance of the 3in1 combination preparation be optimized.

0015It is particularly advantageous in this case if the user-dependent actually used 3in1 combination preparation of program control is specified as a parameter, z. B. by entering an image acquisition, the z. B. the barcode eines3in1-combination preparation recognizes or stored in the program memory selected commercially purchasable 3in1 combination preparations be or the use of a specific combination product inputted by the user in any way may be, the user-dependent predetermined information on the use of a particular 3in1 combination preparation either to a changing Input information is stored, or the beginning each or defined predetermined timing requeried becomes.

0016With further advantage, in interrogation or evaluation of information on the type and dosage form of the supplied Cleaning, rinsing and possibly Enthärtungssubstanzen a clearly unidentified as 3inl combination preparation product a wrongly selected by the user off 3in1 function or when you select a program 3inl an error message may result.

0017It is further of advantage that, when turned on 3in1 function or when you select a wash program the display 3in1 for states of the washing program, the conventional washing programs with a single dose of the substances are turned on, be turned off or hidden, such. as the shutdown a LED indicator at the time of the regeneration process or an indicator LED, which calls to replenish rinse aid.

0018If the user of the dishwasher after setting soiled items to be washed in the dishwasher a selected wash program, a combination product of the dishwasher added and by an optionally supplied switched Selection means the use of a combination product displayed, so the program sequencer sees considering the additional function before that the program sequence of the selected wash program changes and in its overall design adapted to the use of a combination product becomes. Here are a function of the selected Washing program one or more parameters of the various Wash program prewash, cleaning, intermediate rinse, Rinsing, in the manner described below automatically in essentially depends on the evaluation of predetermined sensor measurements adapted or changed in a fixed predetermined manner.

0019The case identified in the process claims steps questions with regard to their sequence not necessarily need for the rinsing program is, but can selectively as depending on the use of a specific combination product or type of combination product selected, repeated and / or connected successively, or by other be followed to known program steps.

0020When using a Dosierkombination with commonly separate pantries for the detergent and rinse aid when using a 3in1 combination preparation the Function of rinse aid and possibly the cleaner dosage selected Washing program disappears. In an alternative embodiment it is possible in the z. B. sensor dependent determining the concentration of rinse aid required in this replenish amounts, it is equivalent to, if necessary dilution losses the preceding wash program from. If during the selected wash program further opening times for metering the release of various substances are provided, and these are blocked or the time moved the metering of a particular substance and / or changes in the amount of dosage.

0021Is the combination preparation in addition to the cleaning substance and the Klarspülsubstanz added a Enthärtungssubstanz, which the softening in a known manner in the dishwasher make unnecessary by an intended softening should, then that too is known to be in a dishwasher performed regenerate the softener with saturated Salt solutions (brine) is not necessary, therefore, the program flow the regenerating function, ie, the addition of a Sole defined volume to softening, the otherwise at a defined time of the program run is provided hidden. Alternatively, in an intended Hardness sensor, the water hardness of the washing liquid may determine that actually in the dishwasher existing water hardness due to the softening method with the Enthärtungssubstanz the combined preparation necessary be monitored and, if the regenerating of the softener are switched on, so that a partial softening of water is made through the softening device. In hard water areas enough experience has shown that the Enthärtungsvermögen Enthärtersubstanzen not a 3in1 combination preparation out. Therefore, it is of particular advantage when the information on the hardness of the water actually used the Lead goes into the design of the program run. Of the Hardness of the water, for example, by the user via a specially provided input function z. B. in the control panel, be entered and stored and also at a Blending can be adjusted, where appropriate Means the value of the water hardness setting to the program sequence control forward and switched 3in1 function or selecting a 3in1 washing program the switching the regenerating function and / or at least the blending of hard with soft water at least at a predetermined time enable.

0022It is envisaged that the existing water supply over the next Softening device regardless of their Enthärterkapazität, with increasing number of the Spülflüssigkeitswechsel depending the degree of hardness of the water supplied is exhausted, to lead. All other alternatives of the water inflow are Although theoretically possible, but only useful if By default, only combination preparations with a Enthärtersubstanz are available. The possibly in the reservoir of Dishwasher defined reproached water volume for the regenerating function may especially in soft water areas alternatively as defined volume completely or partly in the liquid conducting program sections for the design of a predetermined volume of liquid used.

0023If by a sensor during an initial pre-rinse recognized and the use of a combination product Use thereof by activated additional function displayed so the duration of the initially planned program section be shortened pre-rinse to prevent that which included dissolving detergent and Klarspülerwirkstoffe too early and in sections cleaning or rinsing in too low present concentration. On the other hand, a washing program selected, the two or more Vorspülabschnitte with each complete water change provides so is Omitting at least one pre-rinse or the reduction to a program portion prewash thereby without detection a combination product already prophylactically prevents a mistake in the dishwasher instead pickled in the Dosierkombination combination preparations dissolve prematurely.

0024If above described the method section prewash cut back or entirely omitted, thereby decreases the time of subjecting the ware with water, the Anlösevorgang of heavy soiling which may have stick long on the dishes, is thereby reduced or completely eliminated. This is in some cases a good pollution Cleaning result not conducive. Therefore, in such a Cases the process section cleaning preferably the Duration of the method section extended to the portion of the process Prewash was shortened. Thus, the partial dissolution is the Dirt particles at least partially in the methods section Clean shifted.

0025Particularly preferably, the number of Zwischenspülabschnitte is between the program sections cleaning and rinsing on a Zwischenspülabschnitt reduced, the substantially has task sporadically hang residual dirt and eliminate chemical residues of cleaning. with further Advantage, the intermediate rinse with reduced maximum Spülflüssigkeitsvolumen relation to the maximum provided operated Spülflüssigkeitsvolumen the program section cleaning , so that the concentration of dissolved rinse aid is higher than in the same size Spülflüssigkeitsvolumen as in cleaning. If, during the program section cleaning dilutes the washing liquid several times and / or by a corresponding turbidity measurement a low contamination level the rinsing liquid has been recognized, can the Zwischenspülabschnitt are possibly completely eliminated.

0026In the process section intermediate rinsing, the rinsing liquid with lukewarm is operated and therefore no active heating provides by connecting provided heating elements, is during the process sections with hot washing liquid operate, energy fed withdrawn. To the Procedure described energetically favorable and above saving and water and thus the concentration of rinse aid to make increasing in the process section intermediate rinsing, can be provided by repeatedly turning on and off the circulation pump with different determinable and / or definable Duration of the inputs and off state of the circulation pump the rinsing liquid in the form of a pulse to the rinsing bring ware. When switching off the circulation pump is the Circulating the rinsing liquid and thus imparting the Ware suspended with flushing liquid. This type of pulse flushing is short with a succession spraying, break, spraying, Pause, spraying, pause, etc. described.

0027At the end of at least one process section such. As the intermediate rinse can, depending on the measurement of turbidity and / or the content of rinse aid in the rinse liquid, a be provided dilution step. The dilution step causes that a partial volume of the rinsing liquid which during the intermediate rinsing was used in the subsequent process section Rinsing is reused with fresh Rinsing liquid which is fed, is mixed. as a result the dilution step, the loss of particular Rinse aid towards a complete pumping and filling reduced washing liquid. It is for this reason also regardless of the measurement of the turbidity of the rinsing liquid necessarily a dilution step rather than full Pumping the drilling fluid such. As at the end of Spülprogrammabschnittes be provided.

0028As a further or alternative step is preferably the temperature in the program section rinse upstream Process sections, preferably in the process section cleaning, to a temperature below the dissolution temperature the rinse aid, preferably below 58 ° C, reduced. This is at z. B. a selected intensive program which usually the cleaning section with temperatures Operates 58-70 ° C, prevents the use a combination product with temperature-dependent release the rinse aid this possibly dissolves already here and Accordingly, in the program section rinse at low concentrations present.

0029In program section clear rinsing the dishes to a temperature of at least 58 ° C for the subsequent program section Drying heated thereby is also the temperature-dependent and optionally pH-dependent dissolution of the rinse aid allows.

0030Advantageously, the temperature control of the washing liquid during a selected rinsing process, to the use of the automatically of combination products, as mentioned above, was adapted, firstly by the dissolution temperatures of individual chemical substances determined. On the other under energetic point during purging, provided it is carried out, the washing liquid by switching not heated provided heating means, so that the washing liquid essentially on the water supply temperature dependent is. During cleaning and clear rinsing is the Rinsing liquid due to switching on heating means provided actively heated and in the program section without intermediate rinsing Connecting this heating passive, ie by taking Energy from the heat capacity of the dishwasher, significantly to a temperature below the dissolution temperature of temperature-dependent liquid rinse heated.

0031Without limiting the invention, it is possible ingredients the wash program at selected 3in1 function in whole or progress to some extent according to a program defined predetermined to allow or recognize and evaluation of certain parameters, z. B. by sensors in a suitable manner to the actual situation with respect to a predetermined desired situation in whole or partially adapt.

0032The connection of the 3in1 function or the selection of a washing program 3in1 may further also in networked appliances, which anywhere from one in the dishwasher localized Central computer to be operated, if necessary be switched.

0033Besides the already known selectable dishwashing programs Normal program Intensive program, eco program, short program, can also a special 3in1 washing program may be provided which at the use of combination preparations, in particular those the cleaner, softener and rinse aid containing same, is adjusted from the outset. This 3in1 dishwashing cycle is selected directly by the user of the dishwasher and is the main listed below characterized method steps mentioned here, however, not necessary sequence of process steps is thereby a possible rinsing program without the final section of the program Drying is:

0034Changing or disconnecting the Enthärterfunktion of the recovery and / or modification or shutdown of the opening special Supply chambers of the metering device for particular continue separately next to the combined preparation bevorrateter chemicals (detergent, rinse aid) and / or Changing the Zudosierungsmenge of stockpiled chemical Substances.

0035Switching off of corresponding display elements to functions, during the program run at least through the program sequencer off from the outset, that is preset are, preferably off the display regeneration when disconnected regenerating function by regenerating and / or switch off the display rinse aid top up if at least turned off automatic dosing Rinse aid.

0036Pre-rinsing is carried out with cold water, so that essentially depends on the water supply temperature, for a extremely short duration of 2 to 5 min., preferably 2 to 3 min. In this time mainly to fresh dirt detached and longer adhering dirt is softened. Depending on an optional turbidity measurement of liquid one or more dilution steps is very dirty be provided to the washing liquid, wherein a Dilution due to the shortness of the pre-rinse, preferably is at the end of pre-rinse, provided. Finds at the end the pre-rinse no dilution takes place, the washing liquid is completely changed before the next program section.

0037The case freshly supplied flushing liquid which also diluted and thus may be contaminated to a certain degree, now in the process of cleaning section in a temperature below the dissolution temperature of the rinse aid, preferably 40-57 ° C, is heated up.

0038The combination preparation is preferably by the dosing device within the first third of the program section Clean supplied the washing container, provided that the combined preparation not by the user before starting the rinse wash program into the washing compartment, z. B. in the cutlery basket, was inserted.

0039In the above temperature, the washing liquid is in the washing circulated during cleaning is about 10 to 30 minutes and completely drained at the end of the process section cleaning or diluted. This decision may be optionally of a made conducted turbidity measurement of the washing liquid depends will.

0040If at least one turbidity measurement of the washing liquid conducted so performing multiple dilutions is in Depending on the degree of contamination and / or concentration individual components of the combination preparation optional executable. In the process section cleaning is followed by a process step between flush, in which the now existing fresh or diluted washing liquid passively, ie only by energy extraction of the heat capacity of the dishwasher is heated so that it during their tumbling remaining last dirt and chemical residues the process section cleaning away. recirculation the flushing liquid takes place in the process section intermediate rinsing for a period of about 2 to 10 minutes instead. alternative , the intermediate rinse as impulse rinse under reduced maximum Spülflüssigkeitsvolumen respect. the maximum Spülflüssigkeitsvolumen of cleaning are operated.

0041The process section is between rinse with a full or partial evacuation ended.

0042In the process section rinse the rinsing is a defined Spülflüssigkeitsvolumen supplied. This can range from outset be fixed sized and / or variable depending various parameters are set. A dependent This case is the concentration of this fact in the rinsing liquid existing rinse aid, as these immediate Impact on the final rinse and therefore on the then recoverable drying result the ware takes. Thus, in the case of a low concentration of rinse aid at the beginning of the program section rinse the rinse as low as possible, but if necessary, depending on the Turbidity of the rinsing liquid can be supplied. Is otherwise the concentration of the rinse aid at the beginning of the program section Rinse above average or sufficient high, so the concentration of rinse aid by supplying a defined adjustable Spülflüssigkeitsvolumens be adjusted to a predetermined concentration. The Washing liquid with already dissolved rinse aid, as well with more to be dissolved rinse aid, is now preferably on an opening temperature above the dissolution temperature a pH value and / or temperature-dependent dissolving Rinse aid heated. This dissolution temperature is currently above 58 ° C (for the 3in1 combination preparation Calgonite Powerballs®). For a period of 2 to 15 minutes, but also at least until a predetermined temperature of presently preferably 65 to 70 ° C, the washing liquid is heated and circulated. At the end of the program section rinse the washing liquid as far as possible by pumping away from the washing.

0043At the ware, the Spülbehälterdecke, the Spülbehälterwänden remaining liquid and steam is in, the Program section rinse following program section Drying away. Drying is preferably carried out as Condensation drying performed. During the condensation drying , if present, preferably in the first third This program section at least turned a circulation fan.

0044The intermediate rinse liquid during the process leading portions may preferably be configured as pulse flushing be, which means that during the process section intermediate rinsing the circulation pump is repeated for a predetermined or determinable Duration of switched on and off. Here, the duration switching on the circulating pump and of switching off the Circulation depends on a Spülflüssigkeitsniveau in the washing, which corresponds to a lower filling level, wherein the circulation pump from drawing in air. Due to the above said limited factor, there are other dependencies to the rotational speed of the circulation pump, which increases Speed ​​more irrigation fluid is taken from the sump. The design the pulses of the switching on and off of the circulating pump also in response to a turbidity measurement of washing liquid adjustable, so with low contamination level, the duration switching on of the circulation pump with respect to the duration of the switch-off the circulating pump can be shortened and at elevated contamination level be extended accordingly. Dependent on a pH-measurement and / or the temperature of the liquid and / or a determined Rinse aid, the maximum existing Spülflüssigkeitsvolumen during a liquid-carrying Process section, preferably in the methods section Intermediate rinse, set defined. So can on the dissolution behavior and / or the concentration of the Rinse aid and / or other substance, the combination preparation Be influenced. If a combined preparation is used, which contains a rinse aid, which is a temperature and / or pH-dependent dissolution behavior has a certain pH, preferably in the neutral pH range, during achieve between rinsing. This sets possibly both increased during Spülflüssigkeitsvolumen Intermediate rinsing advance, as also that this pH-value by a or more intended dilution steps during can be intermediate flushing achieved.

0045In one embodiment, the invention is based on a Method of operating a domestic dishwasher, which for the use of 3in1 combination products, ie of those with the active detergent, rinse aid and Softeners, suitable explained in more detail.

0046The single FIGURE shows a schematic of the various procedures a Spülprogrammablaufes. It is assumed, that the water supply in the Wesentlichen.weich is and therefore has a low degree of hardness.

0047On the ordinate of the curve A is not to scale the time and on the abscissa is not to scale existing in the washing Spülflüssigkeitsvolumen applied. One important Parameters for the procedure, which is particularly good for a Cleaning result of the dishes are essential are by, corresponding arrows marked. Preferably at the beginning of Wash program are automatic Zudosierungsfunktionen that 3in1 combination preparation addition include, hidden, this applies in each case, the automatic metered addition of the Rinse aid, further, the automatic regeneration function hidden. From the figure it is seen that the washing program with a pre-wash of very short duration 2-5 Minutes is carried out at temperature of the water supply line.

0048In this program section are preferably the dishwasher no chemical substances to improve Vorspülergebnisses added. It can in this case, however, not prevent, that the user mistakenly 3in1 combination preparation before starting the dishwasher was fed. After completely draining the washing liquid at the end of the program section prewash, characterized by arrow VV, fresh washing liquid is the rinsing supplied. This is to an intended maximum Spülflüssigkeitsvolumen of approximately 4 1, dimensioned to a dishwasher, which is intended to hold 12 standard place settings, limited. At the start of the program section cleaning is the Rinsing liquid heated by switching on heating means provided. The rinsing liquid is to a temperature of ca. reach 55 ° C, a temperature at the time der'Erfindung below the dissolution temperature of the rinse aid of pHund temperature dependent resolvable 3in1 combination preparation, such as Calgonite Powerballs® corresponds. In the first Third of the program section cleaning is the 3in1 combination preparation, preferably while supplying Rinsing liquid is added (indicated by arrow 3inl).

0049The rinsing liquid is at the temperature predetermined maximum circulated about 10 to 30 minutes in the washing container and thereby the items to be cleaned applied. At the end of the program section will clean the rinsing liquid from the Rinse tank almost completely removed (indicated by Arrow VR). The Spülflüssigkeitsvolumen is a following Program section intermediate rinsing freshly filled and exclusively by extracting energy stored in the heat capacities stored the dishwasher, heated and circulated. The maximum supplied Spülflüssigkeitsvolumen can in Dependence of turbidity and / or a concentration measurement of available rinse aid, the dilution principle by the works, be varied. Thus, as dotted shown that Spülflüssigkeitsvolumen in high degree of pollution and / or high level of concentration of the rinse aid and / or strongly basic medium of the washing liquid preferably elevated. At low degree of pollution, quite low Concentration of the rinse aid with respect to the concentration, the is in the final rinse of distress, and / or been neutral washing liquid is the Spülflüssigkeitsvolumen as dashed line shown, lowered.

0050The process section intermediate rinsing is nach'einem dilution step or for a not what is shown complete pumping as a function of turbidity in the program section Rinse through. For this purpose, at least partially, the increased Spülflüssigkeitsvolumen and preferably reaches the maximum existing Spülflüssigkeitsvolumen the program section To clean. On the other hand, alternatively, the Spülflüssigkeitsvolumen by appropriately evaluated measurement results sensors provided exactly to a predetermined concentration range Rinse aid can be set. The value of then fed Spülflüssigkeitsvolumens must by the computing unit the program flow control can be calculated. Thus varies the duration of the intermediate rinsing between 2 to 10 minutes and the duration of clear rinsing approximately between 2 to 15 min. The Spülflüssigkeitsvolumen is in the running program now to a temperature above a pH or temperature-dependent Dissolution temperature of the rinse aid is increased, the dissolution temperature Rinse aid is currently around 58 ° C, so that at a minimum temperature of the final rinse of 60 to 70 ° C is heated. At the end of the program section rinse the flushing liquid is almost completely from the washing removed (indicated by arrow VK). On the program section Rinse a program section closes drying of which is not further shown here.

0051Without limiting the invention means all information which the numerical values comprise the 3inl combination products currently available on the market (Calgonite Powerball, Somat 3in1®, Sun 3in1 Optimal @) adjusted. With appropriate changes in the composition This 3in1 combination products are said Parameters with numerical value data adjusted accordingly. For further modification of the proposed program sequences is the co-pending applications P-10073, entitled "Method for operating a dishwashing machine "and P-10026, entitled "Method of operating a dishwasher, Dishwasher "from 16.05.2002 the Applicant referenced.

0052Without limiting the invention is also a program flow design and a method is conceivable in which the above- described invention is reversed, ie all preset Programs are to the use of (3in1) designed combination preparations and operated by a Switching means to adapt to the use of which is individually bevorrateter or zudosierbarer cleaning, rinsing and Softeners the selected wash program possible.