ES2335883T3 - PROCEDURE TO OPERATE A DISHWASHER WASHING MACHINE IN THE CASE OF USING A FORMULATION COMBINED WITH VARIOUS ACTIVE SUBSTANCES. - Google Patents

Abstract

Procedure for operating a dishwasher washing machine with at least one washing program known per se, structured for the operation of the washing machine without formulations combined with various active substances, such as p. ex. an intensive program, a normal program, a short program or an ecological program, the washing program having pre-washing, cleaning, intermediate washing and rinse phases of the washing program, in which the washing program, in In the case of the use of a combined formulation with several active substances, it is adapted in its structuring and in its course to the use of a combined formulation with several active substances, making the adaptation of the washing program to the use of a combined formulation It comprises at least one of the following technical measures: the duration of at least the prewash phase of the program is shortened or reduced to zero, and the number of intermediate wash phases, planned between the cleaning and rinsing phases of the program, is reduced to one or no intermediate washing phase.

Description

Procedure to operate a machine dishwasher in the case of using a formulation combined with several active substances.

The invention relates to a process for operate a dishwasher machine.

At the present time, for quite some time time, so-called combined formulations of 3 in 1 for use in dishwashing machines that, together with a cleaning substance, they contain a substance de-hardener and a lightening substance, and these are contributed to the same time to the washing machine washing machine container dinnerware at a certain time. These combined formulations 3 in 1 are available in the form of pressed tablets, the called tabs, 3 in 1, and also as a 3 in 1 powder. Combined 3-in-1 formulations can be introduced in Dosing devices provided for the washing machine tableware, in this case, they are added dosedly to the washing container at a certain time, which is determined through the course of the machine wash program dishwasher On the other hand, they can be placed, before connection of the washing program, also by the user of the dishwasher washing machine inside this machine dishwasher, p. ex. in the cutlery basket. For him user of a dishwasher machine is available today in general more than one selectable wash program for the cleaning of the dirty washing material that has been introduced into The dishwasher machine. As washing programs selectable programs are known sufficiently under the names of short program, normal program, intensive program and ecological program, for which there are also the most diverse synonyms concept formations. Since the use of 3-in-1 combined formulations by machine users dishwasher, customer complaints have accumulated to the manufacturers of dishwashing machines. Indeed, the results of cleaning and / or drying of the material to be washed, that has been cleaned in the dishwasher machine, have partly worsened dramatically in the case of using 3-in-1 formulations, relative to the usual addition individual dosing of the corresponding substances. It has been manifested as especially problematic the fact that, by a part, users do not take into account the prescribed location of the combined 3-in-1 formulation in the washing machine dishes, so that some of them put the tabs (tablets) 3 in 1 inside the dishwasher washing machine, while a use is prescribed by the manufacturers exclusively through the dosing device. Further, the data of the manufacturers of the formulations are not appropriate combined 3 in 1 when it comes to choosing a proper washing program, since the user of the machine dishwasher in general certainly knows which of the wash programs you have to select it depending on the degree of fouling and / or drying of dirt particles, but it has no more intimate knowledge about the course of the washing program. This knowledge involves the manufacturer of the combined formulation of 3 in 1 in the user and leaves in such case totally without considering that in the market they are present different 3-in-1 combined formulations, which are dissolve differently depending on the most different parameters and therefore reach their highest efficiency in Different moments. Thus, some combined formulations of 3 in 1, obtainable in commerce, are added according to a so-called  "dilution principle" (also known in English as Carry over principle), that is to say that at the beginning of the cleaning is added and The 3-in-1 combined formulation begins to dissolve. case, mainly the lightening substance is added first in a high concentration, that is to say excessively dosed, and part of the fact that, as a result of trawling on remains of the wash water and adhesions of the dissolved lightening substance next to the material to be washed, next to the walls of the container washing and next to the lid of the washing container as well as next to the inlet pipes, the concentration in the phase of cleared up is still enough to get a result Especially good drying. Another different embodiment of the combined 3-in-1 formulation provides that in the first place dissolve only the cleaning substance and the substance de-hardener and that the lightening substance, which is presented encapsulated in the combined 3-in-1 formulation, p. ex. fit of a pearl wrapped with a wax, dissolve for the first time, of a mode dependent on temperature and / or pH value, during The rinse phase. In the case of using a program of washing, which already in the cleaning phase of the program works with high temperatures and / or where the duration of the cleaning process is select very long, which is usually usual in the case of a intensive program, the clarifying substance of the type mentioned in Second place is already dissolved however. The lightening substance of the type mentioned first has in particular the disadvantage that she dissolves too quickly when performing several phases of the wash program before rinsing, such as p. ex. those of cleaning and intermediate washing, being intercalated this Last, as is known, between the cleaning and rinsing phases of the program, and in this case, through a multiple change of washing liquid in the rinse phase of the program, it is no longer present in a sufficient concentration. An additional defect in the case of using the combined 3-in-1 formulations may appear when the user of the dishwasher machine carries out the dosed addition by introduction, e.g. eg of a 3-in-1 tablet, before the start of the wash program, in any place of the dishwasher machine, but not in the combination of dosages. In this case, p. ex. in the prewash phase of the program begin to dissolve so minus the cleaning substance and the de-hardening substance, being able to verify in general, in some laboratory tests, that the dissolution behavior of the combined formulations of 3 in 1 is very good also in the case of a water, which has Essential inlet conduction temperature. Through drained by pumping, the substances of the combined formulation of 3 in 1 they are available, in a smaller concentration, of the subsequent phases of the program, namely the cleaning, the Intermediate and rinse phases of the program, which have been planned eventually, which has a direct impact both about the result of the cleaning as well as the result of drying the washed material, and worsens in general.

From the patent application document German DE 199 57 243 A1 a dishwasher washing machine is known with several washing programs of different types, which are structured for operation with cleaning agents multiple phases, adding and mixing with the washing liquid a multi-phase cleaning tablet, which is structured symmetrically in rotation based on four partial volumes concentrically arranged, comprising in each case a active substance, and the first active substance is immediately soluble when coming into contact with water, the second substance active that contains enzymatic components, with an effect especially high cleaner against food scraps that they contain fat, it has a property of being about 40 ° C hardly soluble, so she must be subjected to the action of the liquid for washing for the first time after about 12 min, the third active substance very quickly soluble, which contains surfactant components with maximum efficiency at about temperatures above 55 ° C, it is coated with a thin layer of wax, which melts at 55 ° C, and the fourth active substance is a lightening agent encapsulated by means of a thin layer of wax, which leaves its contents free for the first time at 65ºC, and the program wash includes a prewash phase, in which it is done recirculate a fresh water, cold at approximately 15 ° C, and the first active substance begins to dissolve, a subsequent cleaning phase with a change of the washing liquid, approximately 10 min after the start of the program, in which the liquid is heated to about 40 ° C and is dissolves the second active substance, a renewed connection of the heating element at approximately 35 min after beginning of the program, beginning the third active substance, to approximately 55 ° C, to travel in the liquid to wash a phase intermediate wash with a change of water, and a subsequent rinsing phase, in which the washing liquid is heated to approximately 70 ° C and the substance is released clarifying

The European patent application document EP-A-1195128 discloses a dishwashing procedure, in which because of the use of a combined formulation, a hole for Dosage of the reserve container intended to receive the lightening substance, remains closed throughout the process washing

A mission of the invention is to simplify the handling of dishwashing machines according to the use of combined formulations.

The problem posed by the mission The aforementioned is resolved by the purpose of the claim 1.

According to the invention, in a machine dishwasher can be selected by the user of the dishwasher washer machine at least one washing program, as p. ex. an intensive program, a normal program, a Short program or an ecological program. The selection means are found in most cases in a dashboard of dishwasher washing machine handling, and as such are sufficiently known.

Means are provided for the connection of an additional function, whereby, in the case of a connection of this function, at least one parameter can be modified of the wash program selected in response to the use of a formation combined with several active substances. This has as a consequence that the wash program selected by the user, such as an intensive program, a normal program, a Short program or an ecological program, is automatically adapted to the use of a combined formulation, which in particular it comprises a cleaning substance, a de-hardening substance and a lightening substance This means that, while connected the additional function, a corresponding signal is emitted to the regulation and control unit, which automatically performs the adaptation of the washing program, selected in each case from a user dependent mode, to the use of combined formulations. For this, for example, different routines of regulatory resources in the unit's microcontroller regulation, which has been resorted to, and / or accessed, or respectively, in a defined manner, different parameters of the washing program, such as the temperature, the duration of a certain phase of the program washing, the volume of filling with washing liquid, the value of pH and others, and these are modified in this way. Form alternative embodiment is an additional function, in which a disconnection of connection means acts in accordance With the invention. In another embodiment, a program of washing, specially structured for particular use with a combined formulation, it is properly selectable as such among other washing programs.

Preferably, the additional function is structured for the use of a combined formulation of 3 in 1, containing this combined formulation, as substances specific for cleaning the material to be washed, essentially only a cleaning substance, a de-hardening substance and a lightening substance Regardless of these components, the combined 3-in-1 formulation may also contain other substances, whose direct or indirect influence on the result of cleaning and drying individual phases of the program washing, or respectively on the overall cleaning result of the washing program, has a secondary importance. Always and when other substances are not expressly mentioned with a specific action of the combined formulation, these are however generally known and are encompassed together in a way influenced by the object of the invention.

In addition, means of connection for connection of the additional function, being located these preferably in the dashboard of the dishwashing machine together with other selection means and / or means of indication. Another possibility of arranging the means of connection is provided by the dosage arrangement of the formulation combined, in which the formulation is preferably filled in combined. In the structuring of the connection means you can conceive the most different known forms of execution, such as rotary selector switches, push buttons or the like. In addition, it is also possible to drive means of connection through a user-dependent selection, which can be connected by selection on a guided selector device for a menu, for example in a visual display presenter or, in the case of interconnected household appliances, through a graphic surface or possibly a recognition system voice.

In the dishwasher washing machine, by at least one intended sensor, the use of a combined formulation, in particular of a formulation combined 3 in 1, so that for the structuring of the course of the program can be distinguished, on the one hand, if a Combined formulation works according to the dilution principle, or if a combined formulation is used, which dissolves the substance clarifier for the first time in the rinse phase in a way dependent on the value of pH and / or temperature. On the other hand, in the case of a repeated measurement by the sensor (s) during the entire course of the washing program, you can check p. ex. a change in concentration and / or pH and / or modifications of the degree of hardness of the washing liquid, which allow conclusions to be drawn about the concentration of individual active substances of the combined formulation of 3 in 1, with the consequence that the course of the program can be modify at any appropriate time.

As sensors, at least one of these sensors is structured as a type of chemical sensor and / or acoustic and / or thermal and / or optical and / or pneumatic. These may be structured differently in their number and property specific that they have to detect. In addition, a evaluation of the sensor signals, both as far as refers to the adaptation of the course of the washing program in relationship with the use of the combined 3-in-1 formulation, as well as for the structuring of the other parameters of the course of the global washing program. In addition, alternatively, at least one planned chemical sensor, with receivers correspondingly selected, which for detection p. ex. from several active substances that appear at the same time, such as the cleaning substance and the de-hardening substance and / or the clarifying substance, recognize the use of a formulation combined, and also without any additional function connection to the system of regulation and control of the course of the program, signal the use of a combined formulation. Through possibly repeated and / or tuned control measurements with other sensor measurements during the course of program, the conclusion is drawn about the use of a combined formulation and is modified accordingly course of the program Especially preferred is currently the use of a sensor, which recognizes at least the pH value and / or the temperature and / or the degree of hardness of the liquid for to wash.

The expected sensor (s) determines (n) in a continuous or discontinuous manner, during the course of the program or during individual phases of the program washing, whose chronological transcripts or respectively moments of use can be preset using the system program regulation and control of individual parameters of the program, p. ex. with the help of a comparison between the actual value and the nominal and / or of a difference value and / or of the evolution of the modification of a parameter, such as the pH value, the temperature, cloudiness, foaming, water concentration or hardness, if a certain substance The combined formulation is transferred to higher values or minors p. ex. a maximum or minimum preset value. In addition, p. ex. depending on a difference value, which can be set p. ex. depending on the manufacturer from the 3-in-1 combined formulation itself, as well as in attention to other typical parameters, such as jumps of concentrations, dissolution temperatures, or respectively combinations of parameters, such as those of the pH value and the concentration or the concentration and temperature of the course of the program For a determinable time segment of a washing program course or throughout the entire duration of the washing program, it is also determined and evaluated the modification of at least one parameter of the washing program. So, p. ex. in regard to the evolution of the pH value of the washing liquid, it is possible to draw conclusions about the concentration of the individual active substances of the 3-in-1 combined formulation. So, currently, the evaluation of the pH value is achievable in such a way that the cleaning phase of the program constitutes a maximum basic pH value, or in the rinse phase of the program must be transferred to values minors by a preset value, or else whose evolution of the modification, p. ex. in a pre-settable field of lines characteristics, it is previously defined within pre-established tolerances, or are determined, within previously defined chronological sections. some jumps of pH value (a sharp modification of the pH value), or by another part time constants are determined for its appearance, p. ex. after the dissolution temperature of an encapsulated lightening substance. Such measurements with sensors they are used by themselves, the additional function being connected, to the adaptation of a washing program course to the use of a combined formulation for intervention active during the program itself, in the case of a washing program course has been selected specially structured, these first have a species control function, in order to check if, during course of the program, find use really a combined formulation or if at least one substance with action specific is present in a sufficient concentration in the preset moment. Optionally, some adaptations of the course of the washing program.

An appropriate method for the evaluation of sensor measurement signals, consisting p. ex. in determining the value or the modification of certain washing program parameters, such as cloudiness, pH value, foaming, concentration, hardness of water, among other ways, individually, as well as in appropriate combinations at characteristic moments of the course of the washing program, in terms of its appearance qualitative and quantitative, as well as their times of delay between them. For this they can be determined, within a few chronological sections or determinable time intervals, so minus certain individual parameter values, and can be submitted to these at a comparison between real and nominal value, at a formation of difference values or a query of values threshold, or respectively the modifications with respect to previously adjusted values or determined during the program, all being deposited comparative values in tables or as default values (default) in at least one unit of system memory program regulation and control. In the case of devices interconnected household, this memory unit can be also located outside the dishwasher machine. Further, in the memory unit can be deposited in a way also storable certain program states, whose combined pairings p. ex. are not desired, and these are They can request the user in the case of certain actions. Such unwanted constellations are established p. ex. in the phase of previous washing of the program, when an increased formation appears of foam and / or manifest fluctuations in the pH value, or respectively a concentration is transferred to lower values preset of the clarifying substance during all phases of the program, or else there are some concentration leaps of the lightening substance, regardless of a certain temperature or respectively of a certain evolution of the temperature. You can request the user, corresponding to the wrong situation that has appeared, p. ex. the introduction of a combined formulation in the combination of dosages, or but the course of the program is interrupted until, in a way dependent on the user, a renewed setting is made in operation of the dishwasher machine, or else indicated At least the measurement result recognized as erroneous.

In the prewash or cleaning phase of the program may be provided to be monitored additionally the moment of actual dosed addition of the combined formulation of 3 e 1, p. ex. by means of an acoustic sensor the fall of a tablet from the dosing chamber into the wash bowl Other detection possibilities are offered optical sensors, which p. ex. they register an increased formation of foam, or chemical sensors, which evaluate the modification of the pH of the washing liquid.

With an additional advantage, in the case of a possibly modified combined formulation, in which p. ex. an enzymatic cleaning substance with a limit is included of activity temperatures of approximately 30 ° C and a lightening substance with a dissolution temperature at approximately 58ºC, in the case of program phases planned shortened simultaneously, and therefore of a shortened duration of the solution, by means of a short connection duration, possibly also repeated and / or of a delivery of regulated or controlled power of the heating means in the prewash and / or intermediate wash phases of the procedure, the washing liquid is preferably heated at the end of the respective phase of the procedure, so that for the following cleaning phases or respectively rinsing of procedure, which are operated with a washing liquid hot, the respective chemical can develop better and for a longer time your complete activity. Through the preheating or respectively increased heating of the washing liquid at the end of the preceding phase of the program washing, the dissolution and therefore the activity are improved of the cleaning or lightening substance for the entire duration of each of the phases of the program. The energy provided in this case It is comparable with an activation energy. In the event that it provide for temperature regulation or control of the temperature, the duration of the solution can be optimized, the concentration, acting time and release time of a chemical of the combined 3-in-1 formulation.

The fact is especially advantageous in this case. that, in a user-dependent manner, the formulation 3-in-1 combination actually used is preset as parameter for the program regulation and control system, p. ex. by introduction through image acquisition, that recognizes p. ex. the barcode of a formulation 3-in-1 combination, or combined formulations selected of 3 in 1 commercially available that have been deposited in the program memory, or can be entered by the user of another way different the use of a certain formulation combined, realizing that the preset information of a user-dependent mode, about the use of a certain combined 3-in-1 formulation, or stored until an introduction of information that has been modified, or but it is consulted again at the beginning of each moment or in a preset moment defined.

With an additional advantage, in the case of a query or respectively an evaluation of information about the type and form of presentation of the cleaning substances, clarifying and eventually de-hardening that are provided, a product not unambiguously identified as a combined formulation 3-in-1 can disconnect a 3-in-1 function erroneously selected by the user, or respectively a error message in the case of the selection of a program of 3 in one.

It is also advantageous that, in the case if a 3-in-1 or respectively function has been connected to the case of a selection of a 3-in-1 wash program, you can connect, disconnect or mask the indication about wash program states, which are connected in the case of usual washing programs with an individual dosage of substances as well, p. e.g., the disconnection of an LED (diode electroluminescent) indicator at the time of the process regeneration, or an indicator LED, that requests the filling with lightening substance

If by the user of the washing machine of dishes, after the introduction of a material to be washed dirty in the dishwasher machine, a program is selected washing, a combined formulation is added to the washing machine of crockery and by means of an optionally connected selection the use of a combined formulation is indicated, then the system of regulation and control of the course of the program, taking  considering the additional function, it provides that the course of Selected wash program is modified and suits your global structuring to the use of a combined formulation. In this case, depending on the washing program selected, some individual parameters or several parameters of the different phases of the wash, prewash, clean, intermediate wash and cleared, they adapt automatically in a way that follows described, depending essentially on the measurement evaluation preset sensors, or are modified in a way fixed preset.

The stages shown in this case in the procedural claims do not constitute, as regards your order of succession, no mandatory need for the course of the washing program, but can be selected deliberately, p. ex. depending on the use of a certain combined formulation or of a certain type of the Combined formulation, can be connected repeatedly and / or consecutively, or they can be followed by other stages of the program itself known.

In the case of using a combination of dosages with usually separate reserve chambers for the cleaning substance and the clarifying substance, and in the case of using a combined 3-in-1 formulation, masks the function of the dosed addition of the substance lightening and eventually the cleaning substance in the wash program selected. In one embodiment alternative, it is possible, in the case of dependent determination of a sensor p. ex. of the concentration of the clarifying substance, it is possible to add this one in quantities necessary; this eventually compensates for dilution losses of the previous phases of the washing program. Yes during the selected washing program other moments of Additional opening for dosing arrangement in order of carrying out the release of different substances, these are also block, or the moment of dosed addition of a certain substance, and / or this is modified in the dosage quantitative

Yes to the combined formulation, next to the cleaning substance and the clarifying substance, is added also a de-hardening substance, which must be done unnecessary, in a known way, the de-hardening in the dishwashing machine using a device expected de-hardening, so the regeneration of the de-hardening substance with solutions saturated with common salt (brines), to be carried out a known mode in a dishwasher machine, and therefore in the course of the program the function of regeneration, ie the addition of a defined volume of brine  to the de-hardening device, which is otherwise planned at a defined time during the program. Alternatively, in the case of a sensor of the hardness, which can determine the hardness of water in the liquid to wash, water hardness can be monitored if necessary really present in the dishwasher machine as consequence of de-hardening with the de-hardening substance of the combined formulation, and eventually the regeneration function of the de-hardening substance, so such that a partial de-hardening of the water is carried out at through the de-hardening device. In regions with waters hard, not enough, according to experience, ability  de-hardening of the de-hardening substances of a 3-in-1 combined formulation. Therefore, it constitutes a special advantage when information about the degree of hardness of the water actually used flows to the inlet conduit in the structuring of the course of the program. Hardness of water can be introduced and stored, for example by user, through an introduction function especially planned, p. ex. in the control panel, or respectively it can also be adjusted in an arrangement of mixing, realizing that corresponding means transmit the value of water hardness adjustment to the regulation system and control of the course of the program, and in the case of being connected the function of 3 in 1 or respectively of a selection of a washing program with 3 in 1, make it possible to connect the regeneration function and / or at least the mixing of a water it lasts with soft water, at least in a moment previously settled down.

It is planned to continue the current water inlet through the de-hardening device of a way independent of its de-hardening capacity, which, with an increasing number of changes of washing liquid have been depleted depending on the degree of hardness of the water used. All the other alternatives of water entry are certainly possible in theory, but they are convenient only in the case of that, in a classical way, only formulations are obtainable combined with a de-hardening substance. Water volume, eventually maintained in a defined way in the container of reservation of dishwasher washing machine for the function of regeneration, can be used, particularly in regions with water  soft, alternatively as a total defined volume or partially in the phases of the program that conduct liquid, for the sizing of a previously determined volume of liquid.

If by means of a sensor, during a wash prior introductory, the use of a formulation is recognized combined or respectively indicated the use thereof by means of an additional function connected, then the duration of the prewash phase of the program, planned for principle, in order to prevent active substances cleansers and clarifiers included dissolve too much early and present themselves in a concentration too small in the cleaning phases and respectively rinsing. Yes, on the other On the other hand, a washing program is selected, which provides for two or more phases prior washing in each case with a complete water change, then by suppressing at least one previous wash or respectively by reducing to a prewash phase of the program, it is prevented in this way, also without the detection of a combined formulation, already in a prophylactic way, that dissolve a combined formulation introduced too early by mistake in the dishwasher machine instead of in the combination of dosages.

If, as explained above, it is shortened or completely suppresses the prewash phase of the procedure, then in this way the time period of the operation to load the material to be washed with water, and in this way the detachment process is shortened or completely suppressed stubborn stains, possibly already adhered for Long time to the material to be washed. This, in some cases of fouling is not useful for a good cleaning result. Therefore, in such cases, the cleaning phase of the procedure it is preferably extended for the duration of the phase of the procedure, by which the washing phase had been shortened prior to the procedure Thus, the detachment of the particles of dirt travels at least partially to the phase of cleaning of the procedure

According to the invention, the number of intermediate wash phases between cleaning and rinsing phases of the program is reduced to an intermediate washing phase, which essential has the mission of removing dirt particles and chemical cleaning residues that have been adhered to individualized mode With an additional advantage, washing Intermediate can be performed, if the maximum volume of washing liquid in relation to the maximum volume planned of the cleaning phase of the program, so that the concentration of the dissolved lightening substance is higher than in the case of a volume of washing liquid as large as in Cleaning. If during the cleaning phase of the program it is diluted multiple times the washing liquid and / or if by corresponding measurement of cloudiness has recognized a lower degree of fouling of the washing liquid, it can be dispense then, eventually in a complete way, from the phase intermediate wash.

In the intermediate wash phase of the procedure, which is performed with a liquid to wash warm and as a result no active heating is expected by means of a connection of heating elements provided, remove the energy fed during the phases of the procedure, They are made with a hot washing liquid. With the purpose of structure the course of the procedure in a way energetically favorable and, as described above, also saving water and therefore increasing the concentration of the clarifying substance in the washing phase Intermediate procedure, may be provided by repeated connections and disconnections of the recirculation pump, with a duration that can be determined in a diverse and / or pre-settable manner of the state of connection and disconnection, introduce the liquid to wash as a pulse wash in the material to be washed. To the disconnect the recirculation pump, the recirculation of the liquid to wash and therefore the load of the material to be washed with washing liquid. This mode of washing by Pulse is briefly described with a sequence of spray, pause, spray, pause, spray, pause, etc.

At the end of at least one phase of the procedure, such as p. ex. intermediate washing, depending measurement of cloudiness and / or substance content rinse in the washing liquid, a stage may be provided dilution The dilution stage results in a partial volume of the washing liquid, which had been used during washing intermediate, be used later in the subsequent phase of rinse the procedure, and be mixed with a liquid to wash again, which is provided. As a result of the dilution stage the loss, in particular, of lightening substance compared to a pumping drain and a Total filling of the washing liquid. Precisely for this reason, also independently of the measurement of the clouding of the washing liquid may be provided necessarily a dilution stage instead of an emptying by total pumping of the washing liquid, e.g. ex. at the end of a phase of washing program

As an additional or alternative stage, it preferably reduce the temperature in the process phases  before the rinse phase of the program, preferably in the cleaning phase of the procedure, up to a temperature located below the dissolution temperature of the substance clarifier, preferably below 58 ° C. Therefore, p. ex. in the case of having selected an intensive program, which  usually performs the cleaning phase with temperatures between 58 and 70ºC, it is prevented that in the case of use of a combined formulation with dependent release of the temperature of the lightening substance, it dissolves eventually here, and as a result it is presented in a concentration too small in the rinse phase of the Program.

In the rinse phase of the program, the material to be washed is heated to a temperature of at least 58 ° C for subsequent drying phase of the program, thus preventing also the dissolution of the lightening substance, which is dependent of temperature and eventually dependent on the pH value.

Advantageously, the temperature regime of the washing liquid during a washing procedure selected, which had automatically adapted to the use of combined formulations, as mentioned previously, on the one hand it is determined by dissolution temperatures of individual chemicals. On the other hand, from energy points of view, during washing prior, as long as it is carried out, the liquid for washing is not heated by connection of heating means provided, so that the washing liquid is dependent on the essential of the water inlet temperature. During the cleaning and rinsing, the washing liquid, as a result of the inclusion and connection of heating means provided, is actively heated, and in the intermediate wash phase of the program, without connection of these heating means, is heated passively, p. ex. by withdrawal of energy from heat capacities of the dishwasher machine, so manifests until it reaches a temperature below the dissolution temperature of a lightening substance dependent on temperature.

       \ newpage
    

Without restricting the invention, it is possible to do elapsing some component parts of the washing program, in the if a 3-in-1 function has been selected, total or partially according to a previously established program of a defined way, or respectively adapt totally or partially the recognition and evaluation of certain parameters, p. ex. by means of sensors, in an appropriate way, to the situation actual in relation to a pre-established nominal situation.

The 3-in-1 function connection, or respectively the choice of a 3-in-1 wash program, can also perform the case of household appliances interconnects that are operated, and if necessary connect, independently of the site, from a computer Central not located in the dishwasher machine.

Next to the selectable wash programs, normal program, intensive program, ecological program and program short, already known, a special can also be provided 3-in-1 washing program, which has been adapted in advance to the use of combined formulations, in particular those that contain at the same time a cleaning substance, a substance de-hardener and a lightening substance. This wash program 3 in 1 is selected directly by the user of the machine dishwasher and is characterized by the stages of essential procedure mentioned below the sequence mentioned in such case, but not forced, of the stages of procedure constitutes in such a case a possible course of Washing program without the final drying phase of the program:

A modification or disconnection of the function of de-hardening of the regeneration provision and / or a modification or disconnection of the opening of special cameras reserve maintenance of the dosing device for chemical substances (cleaning substance, clarifying substance) that continue to be held in reserve individually, in particular together with the combined formulation and / or a change in the quantity dosed additive of the chemicals held in reservation.

A disconnection of indicator elements corresponding for some functions, which are disconnected from beforehand, that is to say in a previously adjusted way, during the course of the program, at least through the system of regulation and control of the course of the program, preferably a disconnection of the regeneration indicator in the event that the regeneration function is switched off, by means of regeneration arrangement, and / or a disconnection of the indicator of refill with the lightening substance, if it is disconnected at least one automatic dosed addition of the lightening substance

The previous washing is done with a cold water, which is therefore essentially dependent on the temperature of water entry, for an extremely short period of time from 2 to 5 min., preferably from 2 to 3 min. In this period of time, you can mainly peel off recent stains and Adhered stains can be softened for a longer time. Depending on an optional measurement of the cloudiness of the liquid, in the case of strong fouling may be provided one or several stages of dilution of the washing liquid, a dilution stage being planned due to the short duration of the previous wash, preferably at the end of the previous wash. Yes at the end of the prewash no dilution stage takes place, then the washing liquid is completely changed before the Next phase of the program.

The washing liquid brought new in such case, which can also be diluted and therefore impurified to a certain degree, it is then heated in the cleaning phase of the procedure at a temperature, which is located below the dissolution temperature of the substance clarifier, preferably between 40 and 57 ° C.

The combined formulation is contributed to the washing vessel by means of the dosing device, of preferred way within the first third of the cleaning phase of the program, as long as the combined formulation does not would have been introduced into the washing container, e.g. ex. at cutlery basket, by the user before the initiation of washing in the washing program.

At the temperature mentioned above, the liquid to wash it is recirculated in the washing container during cleaning, approximately for 10 to 30 minutes and at the end of the Cleaning phase of the procedure is emptied by pumping completely or diluted This decision can be taken in a manner dependent on a measurement of the cloudiness of the washing liquid, which has been carried out optionally.

If at least one measurement of the clouding of the washing liquid, then it is executable optionally a multi-stage dilution embodiment, depending on the degree of fouling and / or the concentration of individual components of the combined formulation. To the phase of procedure cleaning is followed by an intermediate wash phase of the procedure, in which the washing liquid contributed from new or diluted, now present, is passively heated, is say exclusively by withdrawal of energy from the heat capacities of the dishwasher machine, so such that these last remains of dirt still present and the chemical waste from the cleaning phase of the procedure is eliminate during recirculation. The recirculation of the liquid for washing takes place in the intermediate washing phase of the procedure over a period of approximately 2 to 10 minutes Alternatively, intermediate washing can be performed. also as a pulse wash if it has decreased the maximum volume of the washing liquid with respect to the maximum volume of the washing liquid of the cleaning phase.

The intermediate washing phase of the procedure It can be finished with a total or partial emptying.

In the rinse phase of the procedure, gives the wash container a defined volume of liquid to to wash. This may have been sized in advance or may have adjusted variably depending on the most different parameters A dependent magnitude is in that case the concentration of the clarifying substance actually present in the washing liquid, since it exerts a direct influence on the result of the rinsing phase and therefore on the result of drying the washed material, which can be achieved then. Thus, in the case of a small concentration of the lightening substance at the beginning of the rinsing phase of the program, the washing liquid will be supplied in the least amount possible, but eventually depending on the degree of clouding of the washing liquid. If, in another case, the concentration of the clarifying substance at the beginning of the phase of clarified from the program, is above average or sufficiently high, then the concentration of the lightening substance can be adjust to a previously determined concentration, by contribution of a volume, adjustable in a defined way, of the washing liquid The washing liquid, which already contains dissolved a lightening substance, as well as one in which there is a lightening substance that has yet to dissolve, is heated  now preferably at a dissolution temperature located by above the dissolution temperature of a lightening substance that dissolves, depending on the pH value and the temperature. This dissolution temperature is currently located by above 58 ° C (for the combined 3-in-1 Calgonit formulation Powerballs®). Over a period of 2 to 15 minutes, but also at least until a temperature is reached preset, which is currently referred to 65 to 70 ° C, the washing liquid is heated and recirculated. At the end of the rinse phase of the program, the washing liquid is removed, as long as this is possible, by emptying by pumping from the washing vessel.

The remaining liquid and water vapor, which have stayed next to the material to be washed, next to the lid of the container wash and next to the walls of the wash container, are removed in the drying phase of the program, which follows the rinse phase of the program Drying is carried out in such case preferably as a condensation drying. During drying by condensation, provided it is present, preferably in the first third of this phase of the program, it is inserted at least A circulating air fan.

Intermediate washing during the phases of procedure that lead liquid can be structured preferably as a pulse wash, that is during the intermediate washing phase of the pump procedure recirculation is switched on and off repeatedly during a preset or determinable period of time. In this case, the durations of the recirculation pump connection and the disconnection of the recirculation pump are dependent on a level of liquid to wash in the washing container, which corresponds to a lower level of filling, in which the pump recirculation does not aspirate any air. Because of the limiting factor consequently mentioned, there are additional dependencies with respect to the number of revolutions of the pump recirculation, which removes more of the liquid to wash from the sink with an increasing number of revolutions. If the structuring of the impulses of the connection and disconnection of the recirculation pump is also adjustable depending on a measurement of the cloudiness of the washing liquid, then, in the case of a small degree of fouling, the duration of the recirculation pump connection in relation to the duration of the disconnection of the recirculation pump, and can extend correspondingly in the case of a degree increased fouling. Depending on a measurement of value of the pH and / or the temperature of the liquid and / or of a determined concentration of the lightening substance, you can adjust in a defined way the volume of washing liquid that It is present at most during one stage of the procedure in the that liquid is conducted, preferably in the washing phase Intermediate procedure. Thus, influence can be exerted on the dissolution behavior and / or on the concentration of the clarifying substance and / or one of the other substances of the combined formulation If a combined formulation is used, that It contains a lightening substance, which has a behavior of solution dependent on the temperature and / or the pH value, it has to reach a certain pH value, preferably in the neutral pH region, during intermediate washing. This eventually presupposes both an increased volume of liquid to wash during intermediate washing, as well as this value of pH can be reached through one or several dilution stages provided during intermediate washing.

In an exemplary embodiment, the invention is explained in greater detail with the help of a procedure to do run a domestic dishwasher washing machine, which is appropriate for the use of combined 3-in-1 formulations, that is to say those containing the active substances cleaner, lightening and de-hardener.

In this context, the only figure shows a scheme of the individual phases of the procedure of a course of washing program. It is assumed in this case that the water in the Inlet conduction is essentially soft and therefore It has a small degree of hardness.

In the ordinates of curve A it is recorded, not scale, time and abscissa is recorded, not to scale, the volume of the washing liquid that is present in the container washed. Some important individual parameters for the course of the procedure, which are essential to obtain a result especially good for cleaning the material to be washed, they are characterized by corresponding arrows. Preferably, at the beginning of the washing program they are masked automatic dosed addition functions, which do not include no addition of a combined 3-in-1 formulation, this concerns in each case the automatic dosed addition of the lightening substance, the regeneration function is also masked automatic From the figure it can be seen that the program Washing is carried out with a very short pre-wash duration, 2 to 5 minutes, at the conduction temperature of water inlet

In this phase of the program, you preferably do not know add no chemical substance to the dishwasher aimed at improving the result of the previous wash. Without However, in such case it cannot be prevented, that by the user the combined 3-in-1 formulation would have been wrongly provided already before the start-up of the dishwasher washing machine. After emptying by full pumping of the liquid at the end of the prewash phase of the program, which is characterized by the arrow VV, a new washing liquid is supplied to the wash bowl This is limited to a maximum volume. provided for washing liquid of approximately 4 l, sized for a dishwasher washing machine, which is intended for Reception of 12 normal services. At the beginning of the phase of program cleaning, the washing liquid is heated by connection of heating means provided. In that case the washing liquid must reach a temperature of approximately 55 ° C, which corresponds at the time of application of the invention at a temperature below the dissolution temperature of the lightening substance of a 3-in-1 combined formulation, which is dissolvable in a way dependent on pH and temperature, such as Calgonit Powerball®. In the first third of the cleaning phase of the program, the combined 3-in-1 formulation is added preferably during the contribution of the washing liquid (which It is characterized by the arrow "3 in 1").

The washing liquid is recirculated in the wash container at the maximum preset temperature during approximately 10 to 30 minutes, and in this way the material to be washed to be cleaned. At the end of the phase of program cleaning, the washing liquid is removed almost totally from the washing container (what is characterized using the VR arrow). The volume of the washing liquid is refilling new for a next intermediate wash phase of the program, and is heated exclusively by withdrawal of a energy, which is stored in the heat capacities of the rod washing machine, and is recirculated. The volume of washing liquid, added at most, can be varied in dependence on a cloud measurement and / or a measurement of the concentration of the lightening substance present, which works  according to the dilution principle. Thus, as represented by dotted line, the volume of liquid is preferably increased for washing in the case of a high degree of fouling and / or a high degree of concentration of the clarifying substance and / or of a Strongly basic means of washing liquid. In the case of a small degree of fouling and an already very low concentration of the clarifying substance in relation to the concentration, which is necessary for rinsing, and / or a neutral washing liquid, decrease the volume of the washing liquid, as represented with dashed line.

The intermediate washing phase of the procedure it is prolonged after a dilution stage or after a total emptying by pumping, not shown, p. ex. depending on the degree of cloudiness becomes the rinsing phase of the Program. For this, the volume is increased at least partially of the washing liquid and the volume is preferably reached present at most of the washing liquid of the cleaning phase of the program On the other hand, alternatively, the volume of washing liquid can be adjusted, using results of Correspondingly measured measurement of the intended sensors, also exactly at a concentration range presetting of the clarifying substance. The volume value of the washing liquid, which must then be provided, must be then calculated using the computer unit of the system regulation of the course of the program. Therefore, the duration of intermediate washing varies between 2 and 10 min and the duration Rinsing varies between approximately 2 and 15 min. The volume of washing liquid is increased in the subsequent course of program, now at a temperature above one dissolution temperature of the clarifying substance, which is dependent on the pH value and temperature; the temperature of dissolution of the clarifying substance is currently located in approximately 58 ° C, so that the rinse heats up at a minimum temperature of 60 to 70 ° C. At the end of the phase of rinse the program, the washing liquid is removed almost totally from the wash container (which is characterized by arrow VK). The rinse phase of the program is followed by a drying phase of the program, which however is not represented Here in more detail.

Without restricting the invention, all data, which They comprise numerical values, are adapted to the formulations 3-in-1 combinations currently available in the market (Calgonit Powerball®, Somat 3in1®, Sun 3in1 Optimal @). In the case of some corresponding modifications of the composition of these 3-in-1 combined formulations must be adapted in one correspondingly the parameters with values data Numeric, which have been mentioned. For further modification of the proposed program courses are referred to the documents EP-A-1362547 and EP-A-1516 576 of the applicant.

Without restricting the invention, it can be conceived also a structuring of the course of the program or respectively a procedure, in which the invention described above, that is to say that all programs previously adjusted are structured for the use of combined formulations (3 in 1) and by means of actionable connection an adaptation to the use of the substances lightening, cleansing and de-hardener, individually held in reserve or respectively added dosed, to the selected wash program.

Claims (7)

1. Procedure to operate a dishwashing machine with at least one washing program itself known, structured for machine operation washing machine without formulations combined with several active substances, as p. ex. an intensive program, a normal program, a short program or an ecological program, the washing program having some phases of prewash, cleaning, intermediate wash and rinse washing program, in which the washing program, in the case of the use of a formulation combined with several substances active, it is adapted in its structuring and in its course to the use of a formulation combined with several substances active, realizing that the adaptation of the program washing using a combined formulation comprises At least one of the following technical measures:

The duration of at least the prewash phase of the program is shortened or reduced to zero, and the number of intermediate wash phases, planned between the cleaning and rinsing phases of the program, it is reduced to one or no intermediate wash phase.

         \ vskip1.000000 \ baselineskip
      

2. Procedure to operate a dishwashing machine according to claim one, characterized because the adaptation of the washing program to the use of a combined formulation is made, in the case of an optional connection or disconnection of an additional function for the use of a combined formulation, and / or in the case of a automatic recognition, essentially by means of a sensor, of the use of a combined formulation.

         \ vskip1.000000 \ baselineskip
      

3. Procedure to operate a dishwashing machine according to claim 1 or 2, characterized because the adaptation of the washing program to the use of a combined formulation comprises at least one of the following technical measures:

to)

the dosed addition of certain substances, which are maintained in reserve in the dosing device, it moves as soon as at the time of its realization and / or it is modified in the amount of the dosed addition, or is completely masked;

b)

the Automatic regeneration function of the regeneration arrangement it is disconnected as soon as using a hardness sensor The transfer to higher or lower values is not expected of a defined degree of hardness, and / or through a dependent adjustment from the user to the regeneration dosage, do not check a defined degree of hardness of the washing liquid, and / or through a introduction provision regulated by the program is made on interleaving of the regeneration function in the case of being connected an additional function, realizing that when a defined degree of hardness of the washing liquid, by means of the resource to reconnect, at least provisionally, the function of regeneration and / or by mixing the liquid to wash with a soft water, the degree of liquid hardness is reduced to wash;

C)

to the beginning of the wash program blocks a dosed addition of the clarifying substance from the combination of dosages; for this is set and stores a corresponding default value in a memory unit of the program regulation system, being carried out, in the case of the recognition of a transfer towards lower values of the concentration of the clarifying substance below a definable concentration value, that this value by default it can be replaced and / or at a definable moment of During the program the clarifying substance is added in a definable volume to the liquid for washing and / or until a definable value of the minimum concentration, making such a addition preferably for the first time in the rinse phase of the Program;

d)

during the course of the program, in dependence on the performance of the phase b) procedure of program actually executed, masks or intersperses in what refers to the regeneration function an addition of a volume defined brine in a device thinning;

and)

be they indicate to the users, by means of corresponding elements indicators, information about the real states and / or nominal of at least one parameter of the wash program or a indication and / or a request, which derives from them;

F)

be prolongs and / or shortens the duration of two phases of the procedure, preferably of the prewash and cleaning and / or cleaning phases. cleaning and intermediate washing of the program, meeting the chronological duration of prolongation and shortening in a definable relationship;

g)

by at least in one phase of the program, through a connection and a disconnection, performed only once or repeatedly, from the pump recirculation with a determinable duration or respectively differently preset of connection states and disconnection of the recirculation pump or by modification regulated or controlled the number of revolutions of the pump recirculation, the washing liquid is applied on the material to wash as a pulse wash;

h)

for at least one phase of program, preferably at the end of the prewash phases, cleaning and / or intermediate washing of the procedure, is done by minus a dilution stage with decreased concentration of dirt in the washing liquid, depending on at least a measurement of cloudiness and / or concentration of less an active substance in the washing liquid, or in a way independent of it;

i)

the maximum temperature is reduced in the preceding program phase when rinsing, in particular in the cleaning phase of the procedure, up to a temperature below the temperature of dissolution of the clarifying substance;

j)

in the rinse phase of the program is heated to a temperature that is located above the dissolution temperature of the lightening substance

         \ vskip1.000000 \ baselineskip
      

4. Procedure to operate a dishwashing machine according to one of the claims 1 to 3, characterized because at least in the cleaning and rinsing phases of the procedure, as a result of the introduction and connection of a planned heating means, the washing liquid is actively heated, and eventually in the wash phase In the middle of the program the washing liquid is heated with preference passively without connection of these heating means, and / or during the prewash the washing liquid essentially It is actively heated.

         \ vskip1.000000 \ baselineskip
      

5. Procedure to operate a dishwashing machine according to one of the claims 1 to 3, characterized because during intermediate washing and / or washing prior the planned heating means are switched on and off for a short period of time, this being done in a way repeated at different intervals or of equal duration, below or near the solubility temperature of the cleaning substance and / or the de-hardening substance and / or the substance clarifying

         \ vskip1.000000 \ baselineskip
      

6. Procedure according to one of the claims 1 to 5, characterized because at least one of the following is planned stages of the procedure during the course of the washing program adapted to the use of a combined formulation:

to)

a modification or disconnection of the de-hardening function of the provision of regeneration and / or a modification or disconnection of the opening of special backup cameras of the device dosage;

b)

a disconnection of corresponding indicator elements about some functions, which are disconnected beforehand, that is to say of a pre-set mode, during the course of the program, by at least through the system of regulation and control of the course of the program;

C)

a prewash with a cold wash liquid, depending on the water inlet conduction temperature with a duration of prewash preferably 2 to 5 minutes; a total change of washing liquid at the end of the prewash phase of the procedure, being able to perform during the previous wash one or several dilution stages with a change of the liquid to to wash;

         \ newpage
      

d)

a heating of the washing liquid in the cleaning phase of the procedure up to a temperature, which is located below the dissolution temperature of the lightening substance, preferably between 45 and 57 ° C.

and)

a dosed addition of the combined formulation during the phase of heating of the washing liquid in the cleaning phase of the program, preferably at the beginning or in the first third of the program cleaning phase;

F)

a recirculation of the washing liquid in the washing container in the cleaning phase of the program at a cleaning temperature (from 40 to 57 ° C) for a period of 10 to 30 minutes, performing at the end of the cleaning phase of the procedure the washing liquid, possibly depending on the result of a measurement of the cloudiness of the washing liquid is emptied totally by pumping, or the cleaning phase of the procedure through a dilution stage, being able to perform optionally several dilution stages during the cleaning;

g)

a passive heating, in an intermediate washing phase of the procedure, of the washing liquid that is provided with new or it is mixed with a washing liquid from the cleaning phase of the program, and a recirculation of the liquid to wash in the wash container for a period of 2 to 10 minutes;

h)

a termination of the intermediate washing phase of the procedure with a total or partial emptying, realizing that the latter starts a dilution stage for the next phase of the procedure;

i)

a liquid filling to wash up to a defined filling level and / or variably adjustable of the washing liquid in the phase of rinse of the program, a heating of the liquid to wash, by means of connection of heating means provided, by above the dissolution temperature of the lightening substance of the combined formulation, preferably at 58 to 70 ° C, and a recirculation of the washing liquid with the clarifying substance dissolved or diluted and washed away;

j)

a total emptying of the washing liquid from the washing container at the end of the rinse phase of the procedure, for the first time when a concentration has not been transferred to lower values defined of the clarifying substance over a period of time defined, at least in the rinse phase of the program.

         \ vskip1.000000 \ baselineskip
      

7. Procedure to operate a dishwashing machine according to claim 6, characterized because the recirculation pump, preferably in the Intermediate washing phase of the procedure, it is connected and disconnected repeatedly for a preset period of time or determinable, the duration of the pump connection being recirculation and disconnection of the recirculation pump dependent on a level of liquid to wash in the container washing and / or the number of revolutions of the recirculation pump and / or a measurement of the cloudiness of the washing liquid, the volume of the washing liquid being adjusted, which is present at most, depending on the temperature of the washing liquid and / or the determined concentration of the clarifying substance and / or of the value of the pH and / or the fouling of the sieve.