DE102012220618B4 - Dishwasher with a multi-chamber storage device for rinsing liquor - Google Patents

Abstract

Dishwasher, in particular domestic dishwasher (1), with a control device (2), of which at least one wash program for controlling a wash cycle (SG1, SG2) can be called for cleaning wash ware, wherein the wash cycle (SG1, SG2) comprises a plurality of water-carrying partial wash cycles (VG, RG, ZG, KG), in which the items to be washed are each supplied with rinsing liquor (S, SZ, SK) and with a storage device (27) for storing rinse liquor used during the rinse cycle (SG1, SG2) already for loading items to be washed ( SZ, SK) in order to reuse the stored rinsing liquor (SZ, SK) in a subsequent rinse cycle (SG2) for applying items to be washed, the at least one rinsing program providing an optional, manually and / or automatically activatable cleaning sequence (RS) to clean the storage device (27) by means of a heated cleaning liquid, characterized in that the storage device (27) has a plurality of chambers (29, 30, 42, 43) wherein the cleaning sequence (RS) provides to clean the chambers (29, 30, 42, 43) in succession at least partially with the same cleaning liquid (RF).

Description

The present invention relates to a dishwasher, in particular domestic dishwasher, with a control device, of which at least one wash program for controlling a wash cycle for cleaning items to be called, wherein the wash cycle comprises a plurality of water-carrying Teilspülgänge in which the items to be washed each with wash liquor, and with a storage device for storing in the rinse already used for loading of items to be washed rinse, to use the stored rinse water in a subsequent rinse again for applying ware, the at least one rinse provides an optional, manually and / or automatically activated cleaning sequence to to clean the storage device by means of a heated cleaning liquid.

From the DE 10 2008 040 653 A1 a dishwashing machine with a heating element for heating rinsing liquid and a storage container for storing rinsing liquid is known, wherein a storage container cleaning program is provided in which the storage container is at least temporarily at least partially filled with rinsing liquid heated by the heating element.

The object of the present invention is to further improve a dishwasher with a storage device for rinsing liquor.

The object is achieved in a dishwasher of the type mentioned above in that the storage device has a plurality of chambers, wherein the cleaning sequence provides to clean the chambers successively at least partially with the same cleaning liquid.

In the dishwasher according to the invention, the items to be washed, in particular dishes and / or cutlery to be washed, are introduced into a treatment space, also called a rinsing chamber, and cleaned in a rinsing process, which is also called rinsing, with the aid of rinsing liquor and then dried.

Here, a rinsing liquor, also called rinsing liquid, means a liquid which is intended to be applied to the items to be washed in order to clean and / or treat them in another way. As a rule, a rinsing liquid contains water to a large extent. Depending on the operating phase of the dishwasher, the rinsing liquor may be enriched with cleaning agents with cleaning auxiliaries, such as, for example, rinse aid, and / or with dirt which has been removed from the items to be washed. In the context of the invention, the term rinsing liquor is understood to mean, in particular, that liquid which is applied by means of a circulating pump via one or more spraying devices in the rinsing chamber to the items to be cleaned there which are to be cleaned.

The dishwasher according to the invention has a control device for the automatic control of operating sequences of the dishwasher. For this purpose, the control device can be designed as so-called sequence control, in particular as electronic sequence control. It carries out control and / or regulating operations, ie. H. Generally speaking, control operations for operating the dishwasher according to the invention.

In the control device is at least one rinsing program for controlling and / or regulating, d. H. in general terms, controlling a rinse cycle for rinsing items to be washed, in particular for rinsing crockery and / or cutlery, deposited. Advantageously, several wash programs are provided, one of which can be selected and started by the operator. This makes it possible to adjust the sequence of a wash cycle, in particular to the load, to the type of loading, to the degree of contamination of the items to be washed, and / or to the desired duration of the wash cycle.

The control device is preferably designed such that, in particular, a rinse cycle can be carried out, which comprises a plurality of partial rinse steps for cleaning the items to be washed with the aid of rinsing liquid and a partial rinse cycle for drying the items to be washed.

An exemplary sequence of such a rinse cycle for cleaning the items to be washed several Teilspülgänge, especially in this order a pre-rinse for pre-cleaning items, a cleaning cycle for thorough cleaning of items, an intermediate rinse for removing soiled rinse liquor from items to be washed and a rinse cycle to prevent stains on Items to be washed and / or to prepare a drying cycle, in which the items to be washed are each treated with rinsing liquor. These partial rinses are therefore referred to as water-carrying partial rinses. Furthermore, the exemplary drain provides a partial wash cycle following the water-conveying partial wash cycles for drying the cleaned wash ware, namely a drying cycle.

The pre-rinse cycle is used in the example above all the soaking of dirt on the items to be washed, and / or the removal of coarse dirt from the dishes. The purpose of the subsequent cleaning cycle is to completely remove soiling from the dishes, what can be used for a detergent added rinse liquid. The intermediate rinse now carried out serves in particular for the removal of detergent and / or dirt residues which adhere to the items to be washed. The subsequent rinse cycle is in particular to avoid stains on the items to be washed, which could be caused by dissolved substances in the water, such as salt and / or lime. For this purpose, the rinsing liquid can be mixed with rinse aid during the rinse cycle. Another object of the rinse cycle is to prepare the subsequent drying cycle. For this purpose, the items to be washed can be heated to a high temperature during the rinse cycle.

Usually, a predetermined amount of liquid is introduced into the rinsing chamber at the beginning of the respective water-conducting partial rinse cycle, so as to form a rinsing bath or rinsing bath for the respective partial rinse cycle. This rinsing solution of the partial rinse cycle is typically removed from the rinsing chamber at the end of the partial rinse cycle.

At least one part of the rinsing liquor already used in a rinse for applying items to be washed is now stored in a storage device in at least one rinse program stored in the control device in order to reuse the stored rinse liquor in a subsequent rinse for applying items to be washed. In this way, the need for externally added feed water or fresh water can be greatly reduced, wherein the savings in feed water can be greater, the greater the storage capacity of the storage device.

In order to avoid contamination and / or microbial contamination of the storage device, it is necessary at certain intervals to clean the storage device. For this purpose, the at least one washing program provides an optional, manually and / or automatically activatable cleaning sequence in order to clean the storage device by means of a heated cleaning liquid. The cleaning sequence can be activated automatically, for example, after every 10th to 20th rinse. Likewise, an automatic activation of the cleaning sequence after a certain recorded total amount of feed water, for example, after 100 to 200 liters, may be provided, since different wash programs may have a different demand for feed water. In addition, a manual activation of the cleaning sequence by the operator of the dishwasher may be provided.

However, the execution of the cleaning sequence leads to an increased energy consumption for the respective rinse, since the cleaning liquid has to be heated according to experience to a high temperature in order to prevent contamination and / or microbial contamination of the storage device. It basically applies that the higher the capacity of the storage device for rinsing liquor, the higher the required amount of cleaning liquid, which in turn means that the required heating energy for carrying out the cleaning sequence increases with increasing capacity of the storage device.

According to the invention it is now provided that the storage device has a plurality of chambers, wherein the cleaning sequence provides to clean the chambers successively at least partially with the same cleaning liquid. A chamber is understood to mean a substantially closed room unit for storing rinsing liquor. Each chamber can now be cleaned by being preferably completely filled with heated rinsing liquor, which is then removed again. For this purpose, in a multi-chamber memory device less cleaning liquid is required than in a single-chamber memory device with a comparable total capacity, when the plurality of chambers can be cleaned successively time with the same Spülbadmenge. Because the Spülbadmenge used here is due to the lower volume of the respective, d. H. single chamber of the multi-chamber memory device less than the Spülbadmenge that would be required for a single-chamber memory device with only a single chamber, the filling volume of the sum of the volumes of the plurality of chambers of a multi-chamber memory device for full filling. For example, if two equal-sized chambers are provided in the storage device, the required amount of cleaning liquid can be practically halved as compared to a single-chamber single-vessel storage device if the chambers are successively cleaned with the same cleaning liquid. Thus, the energy required for heating can be halved, neglecting waste heat losses. The reduced amount of cleaning fluid needs to be heated only once and can then be used first for cleaning the first chamber and then for cleaning the second chamber.

According to an expedient development of the invention, the rinsing program provides that the cleaning sequence takes place immediately before a heated water-conducting partial rinse cycle, in particular before a cleaning cycle, preferably before a rinse cycle, particularly preferably during or at the end of a between a cleaning cycle and a subsequent rinse cycle Intermediate rinse, is performed. As a result, the interior of the dishwasher is heated before the start of the heated water-carrying Teilspülgangs, so that the rinsing liquid of the water-carrying Teilspülgangs can be brought to the required temperature with a smaller amount of energy.

According to an advantageous development of the invention, the rinsing program provides that the cleaning liquid is at least partially, preferably predominantly, more preferably essentially, formed from previously used rinsing liquor, in particular from the rinsing liquor used in the partial rinse cycle carried out immediately before. As a result, the demand for inlet water can be reduced. The cleaning sequence may preferably be carried out with the rinsing liquor of the last and / or the penultimate water-carrying partial rinse cycle of the rinse cycle, since these rinsing liquors are generally less contaminated than those of the earlier water-conducting rinses. In this case, the last water-carrying partial rinse cycle can be, in particular, a rinse cycle and the penultimate rinse cycle can be an intermediate rinse cycle.

According to an expedient development of the invention, the rinsing program provides that the cleaning liquid is at least partially, preferably predominantly, particularly preferably substantially, formed from feed water or fresh water. In this way, sufficient sterilization and / or cleaning of the storage device can be ensured even if no suitable or too less suitable rinsing fluid is available for forming a cleaning liquid for the cleaning sequence.

According to an advantageous development of the invention, the rinsing program provides for the cleaning liquid to be used at least partially in a water-conducting partial rinse cycle of the same or a subsequent rinse cycle, in particular in a pre-rinse cycle, a cleaning cycle or an intermediate rinse cycle, to form a rinse liquor or rinse bath or that the cleaning liquid is pumped off after the cleaning sequence, preferably by means of a drain pump for pumping out rinsing water. If the cleaning liquid after the cleaning sequence is sufficiently clean, it can be used in a subsequent partial rinse as a rinse, which reduces the total water consumption of the dishwasher. In addition, the need for heating energy of the dishwasher can be reduced in many cases, since a washing liquor formed from the cleaning liquid used for the chamber cleaning of the storage device usually has a higher initial temperature than feed water. If the cleaning fluid at the end of the cleaning sequence is very dirty, but it can also be pumped to the outside. It is possible, the degree of contamination of the cleaning liquid z. B. by means of a turbidity sensor and automatically perform a reuse of the cleaning fluid as a rinsing or pumping out the cleaning liquid depending on the degree of contamination. According to an expedient development of the invention, the cleaning sequence provides that the cleaning liquid, preferably by means of a heating device for heating the washing liquor of the dishwasher, is heated so that it has a temperature of at least 60 ° Celsius, preferably of at least 65 ° Celsius, more preferably of reached at least 70 ° Celsius. At the indicated temperatures, adequate cleaning and / or sterilization of the storage device can be ensured. When using a usually existing anyway heating device for heating rinse liquor can be dispensed with a separate heating device for the cleaning liquid.

According to an advantageous development of the invention, the cleaning sequence provides an order of cleaning the chambers, in which the chambers are cleaned successively with increasing degree of contamination. In this way it can be prevented that dirt is carried off from a more polluted chamber in a less polluted chamber. If, for example, two chambers are provided, wherein the first chamber is provided for storing a rinsing liquor from the rinse cycle and the second chamber for storing rinse liquor from the intermediate rinse cycle, it may be useful first the less polluted first chamber and then the usually more heavily contaminated second chamber to clean.

According to an expedient development of the invention, the cleaning sequence provides that the cleaning liquid when cleaning the respective chamber to be cleaned by means of a pump, preferably by means of a circulating pump, which serves to circulate rinsing water during a water-carrying Teilspülgangs via a check valve arrangement, the liquid-conducting optional compound the pump with the respective chamber to be cleaned is used, is pumped into the respective chamber to be cleaned. By means of a pump and a check valve arrangement for liquid-conducting optional connection of the pump with one of the chambers, the cleaning liquid can be targeted and automatically pumped into each one of the chambers to be effective there cleaning. By using a circulation pump for circulating rinsing water during a water-carrying Teilspülgangs, which is usually present anyway, reduces the design effort.

According to an advantageous embodiment of the invention, the cleaning sequence provides that the cleaning liquid is performed during cleaning of the respective chamber to be cleaned in a cleaning circulation through the respective chamber, which comprises a pump, a check valve arrangement and return means for returning the cleaning liquid from the chamber to the pump. By circulating the cleaning fluid when cleaning one of the chambers and not merely pumping it into the chamber, the cleaning effect can be improved and accelerated. In addition, it can be heated during circulation, for example with a heating device for heating rinse liquor, so that the desired temperature of the cleaning liquid can be produced in a simple manner and also maintained.

According to an expedient development of the invention, the cleaning circulation circuit is designed such that an admission of items to be washed with cleaning liquid is omitted. In this way, it can be achieved that the cleaning liquid does not give off appreciable heat to the items to be washed, so that less energy has to be expended for heating the cleaning liquid.

According to an expedient development of the invention, the return means comprise an overflow of the chamber. An overflow can be dispensed with complicated return means, such as controlled return valves. The overflow of a chamber can be designed so that it opens into the rinsing chamber, so that the cleaning liquid passes into the collection pot provided for rinsing liquid and from there to the pump.

According to an advantageous development of the invention, the cleaning sequence provides, after cleaning the respective chamber to be cleaned to drain the cleaning liquid due to their weight by the check valve arrangement of the storage device from the respective chamber. In this way, can be dispensed with complicated emptying agents, such as controlled drain valves.

According to an expedient development of the invention, the storage device has a common fleet storage with a plurality of chambers, wherein the chambers are each separated by a partition wall of the common fleet storage. In this way, results in a simple and compact design of the dishwasher.

According to an advantageous embodiment of the invention, the common fleet storage is an injection molded part, in particular made of plastic. In this way, the fleet storage is easy to produce, even if it is shaped complex, which may be required due to the limited space in a dishwasher.

According to an expedient development of the invention, the storage device has a first float storage with the first chamber and a separate second float storage with the second chamber. This makes it possible to use spaced-apart areas in the dishwasher for storing rinsing liquor.

Furthermore, the invention relates to a method for operating a dishwasher, in particular a dishwasher according to the invention, in which is called by a control device at least one wash program for controlling a wash cycle for cleaning items to be washed, wherein the wash cycle comprises a plurality of water-carrying Teilspülgänge in which the items to be washed each with wash liquor in the rinse cycle, rinse liquor already used to charge wash ware is stored in a storage device in order to reuse the stored rinse liquor in a subsequent rinse for applying ware, wherein the at least one rinse program provides an optional cleaning sequence which manually and / or or is automatically activated to clean the storage device by means of a heated cleaning liquid.

In the method according to the invention it is provided that the storage device has a plurality of chambers, wherein the cleaning sequence provides that the chambers are successively at least partially cleaned with the same cleaning liquid.

Advantages, refinements and developments of the method according to the invention are explained in the description of the claimed dishwasher.

The above-explained and / or reproduced in the subclaims advantageous embodiments and refinements of the invention can - in addition to z. B. in cases of clear dependencies or incompatible alternatives - individually or in any combination with each other.

The invention and its advantageous embodiments and further developments and advantages thereof are explained in more detail below with reference to drawings. They show, in each case in a schematic outline sketch:

1 an advantageous embodiment of a household dishwasher according to the invention in a schematic side view, wherein a circulation circuit for rinsing liquid is illustrated,

2 another illustration of the dishwasher of 1 in which a first cleaning circulation circuit for cleaning the first chamber of the float storage tank is illustrated by means of a cleaning liquid RF,

3 another illustration of the dishwasher of 1 wherein a second cleaning circulation circuit for cleaning the second chamber of the float storage tank is illustrated by means of a cleaning liquid RF,

4 an exemplary operation of the dishwasher according to the invention the 1 to 3 .

5 A first embodiment of a memory device with associated check valve arrangement,

6 A second embodiment of a memory device with associated shut-off valve arrangement,

7 a third embodiment of a memory device with associated check valve arrangement, and

8th A fourth embodiment of a memory device with associated check valve arrangement.

In the following figures, corresponding parts are provided with the same reference numerals. In this case, only those components of a dishwasher are provided with reference numerals and explained, which are necessary for the understanding of the invention. It goes without saying that the dishwasher according to the invention can comprise further parts and assemblies.

1 shows an embodiment of a household dishwasher according to the invention 1 in a schematic side view. The dishwasher 1 has a control device 2 in which at least one wash program for controlling and / or regulating, ie in general terms for controlling, a wash cycle for washing dishes, especially dishes, is deposited. The control device thus performs the function of a control device or logical sequence device. Expediently, a plurality of washing programs are stored in it, so that by selecting a suitable wash program the sequence of a by the control device 2 controlled rinse cycle, for example, to the load, to the type of loading, to the degree of contamination of the dishes, and / or to the desired duration of the wash cycle, can be adjusted. The one or more washing programs may comprise, for example, at least one pre-rinsing step, at least one cleaning step, at least one intermediate rinsing step, at least one rinsing step and / or at least one drying step.

The control device 2 is an operating device 3 associated with which it is an operator of the dishwasher 1 allows you to call up one of the wash programs and thereby start. Furthermore, the control device 2 an output device 4 assigned, which allows the output of messages to the operator. The output device 4 For displaying optical messages, it can comprise indicator lamps, light-emitting diodes, an alphanumeric display, and / or a graphic display. Furthermore, the output device 4 have a buzzer, a speaker and / or the like for the output of acoustic messages.

The dishwasher 1 includes a washing container 5 passing through a door 6 is closable, leaving a closed rinsing chamber 7 for rinsing dishes. In 1 is the door 6 shown in their closed position. The door 6 is brought by pivoting about an axis perpendicular to the plane arranged in an open position in which it is aligned substantially horizontally and allows the introduction or removal of items to be washed. Im in 1 embodiment shown is the operating device 3 in an easy to use manner on an upper section of the door 6 arranged. The output device 4 is also at an upper portion of the door 6 arranged so that optical messages are clearly visible and audible messages are clearly audible. Also the control device 2 is positioned there so that the required signal connections between the operating device 3 , the output device 4 and the controller 2 can be kept short. In principle, however, it is possible to use the operating device 3 , the output device 4 , and / or the control device 2 to arrange elsewhere. Thus, it may be expedient, for example, if the control device is accommodated in a base assembly or a base support below the flushing container. The control device 2 could also be decentralized, which is understood to include spatially separated components, which are connected via communication means such that they can cooperate.

The dishwasher 1 has an upper dish rack for positioning dishes 8th and a lower crockery basket 9 on. The upper crockery basket 8th is on extension rails 10 arranged, which in each case on a side wall of the washing 5 are attached. The crockery basket 8th is with the door open 6 by means of the extension rails 10 from the washing container 5 extendable, which is the loading or unloading of the upper crockery basket 8th facilitated. The lower crockery basket 9 is analogous to extension rails 11 arranged.

Furthermore, the dishwasher includes 1 a schematically illustrated water inlet device 12 , This has a water inlet for receiving feed water or fresh water ZW from an external water supply WH.

The water inlet comprises an inlet water valve 13 , which by the control device 2 is controllable. For example, the valve 13 be designed as a solenoid valve. The inlet side of the valve 13 is formed so that it can be attached to a fitting of a household water supply WH, for example, to a faucet. The connection can be made by means of a screw connection, a snap connection or the like. Such valves 13 are also known under the name Aquastop valve. The water inlet device 12 can therefore also be used as an aquastop facility 12 be designated.

Advantageously, the valve 13 closed when it is not driven, leaving the dishwasher 1 is disconnected from the water supply WH in the off state. In this way, in the event of a fault leakage of water leakage from the switched-off dishwasher 1 be avoided.

Intended are in 1 the inlet side of the water valve 13 connected to a tap WH. The outlet side of the water valve 13 is with a supply water hose 14 connected, wherein the downstream end of the Zulaufwasserschlauchs 14 with an input side of a connector 15 on a housing 16 the dishwasher 1 are connected. By means of the water inlet device 12 Therefore, it is possible, clean feedwater or fresh water ZW controlled by an external hot water supply WH in the interior of the dishwasher 1 to lead.

The inlet water hose 14 may be formed as a safety hose with an inner water-carrying pressure hose and an outer sleeve, wherein between the pressure hose and sleeve each a leak water channel for discharging any leak water may be provided. It can leak water, which during the operation of the dishwasher 1 in the area of the water inlet device 12 occurs via the housing-fixed connection piece 15 in the interior of the dishwasher 1 be guided. Here it can be detected by a leak water sensor, not shown, so that appropriate measures, such as closing the supply water valve 13 , can be initiated.

The dishwasher 1 also has liquid-conducting connection means 17 on, which make it possible, the recorded fresh water ZW from the output of the housing fixed connector 15 in the rinsing chamber 7 to lead. It can be provided that in the liquid-conducting connection means 17 a water treatment device, not shown, for treating the absorbed water ZW and / or a heat exchanger for preheating the absorbed water ZW is guided before this into the rinsing chamber 7 arrives.

On a floor 18 of the washing container 5 is a collection pot 19 formed in which is in the rinsing chamber 7 Rinse liquor S accumulates due to their gravity. The collection pot 19 stands on at least one liquid line FL1 in connection with a circulating pump 20 , with the help of rinse S from the collecting pot 19 via a heating device 21 to a water switch 22 can be pumped. The circulation pump 20 , the heater 21 and the water switch 22 are connected to each other via at least one liquid line FL2. Possibly. can the heater 21 in the circulation pump 20 be housed.

The circulation pump 20 , the heater 21 and the water switch 22 be during operation of the dishwasher 1 by the control device 2 controlled.

The circulation pump 20 preferably has a brushless electric motor, preferably a brushless permanent magnet motor, which may be formed as a DC motor, AC motor or synchronous motor. The rotor of a brushless permanent magnet motor comprises at least one permanent magnet, whereas the stator has a plurality of electromagnets. These electromagnets are commutated via a control electronics. About the control electronics, the direction of rotation of the permanent magnet motor can be clearly defined, so that the water-carrying parts of the circulation pump 20 can be optimized in terms of flow with respect to a planned direction of rotation. This results in a high flow rate with low energy consumption. In addition, by means of the control electronics, the speed of the motor and thus the flow rate of the circulation pump 20 be controlled as needed. Furthermore, the brushless permanent magnet motor can be designed as a wet rotor, so that expensive sealing measures are eliminated.

The heater 21 is intended for heating rinse S and as a continuous heating 21 in the liquid line FL1, FL2 between the collecting pot 19 and the water switch 22 educated. Alternatively or additionally, an openly arranged heating element, for example one in the rinsing chamber, could also be used 7 or one in the collection pot 19 arranged heating element, be provided.

The water switch 22 allows a controlled forwarding of the circulation pump 20 Flushing liquor S. It has in the exemplary embodiment, three outputs, of which a first with an upper rotatable spray arm 23 and a second with a lower rotatable spray arm 24 connected is. The spray arms 23 and 24 form in the rinsing chamber 7 arranged spraying, which allow loading of items to be washed with rinse S The water switch 22 is so controllable that by the circulation pump 20 subsidized rinsing solution S optionally by none of the spray arms 23 . 24 , through one of the spray arms 23 . 24 or through both spray arms 23 . 24 in the rinsing chamber 7 is encouraged.

In this way, with appropriate control of the water switch 22 a recirculation cycle formed in the wash liquor S from the collection pot 19 the rinsing chamber 7 taken and over the circulation pump 20 , the heater 21 , the water switch 22 and the spray system 23 . 24 in the collection pot 19 can be returned. The circulation circuit is used in particular to the dishes with out of the spray arms 23 . 24 leaking rinse S, which in 1 shown with dotted arrows to apply. In this case, the circulated rinsing liquor S can simultaneously by means of the heater 21 be heated, wherein the temperature of the wash liquor S by means of a temperature sensor 25 can be monitored. The temperature sensor is with the control device 2 connected to the transmission of measured temperature values. This allows the heater 21 be controlled as needed and automatically. In particular, the temperature of the wash liquor S can thus be brought to the required temperature during a partial wash cycle of a wash cycle in which wash ware is subjected to wash liquor S and optionally held at this temperature.

Another, ie third exit of the water switch 22 is over a line section 13 with a check valve arrangement 26 connected, which by the control device 2 is controllable and in turn has two outputs, which via separate line sections 131 . 132 with the lower ends of the separate chambers 29 . 30 the storage device 27 for storing already used rinsing fluid SK, SZ are liquid-conductively connected. But there could also be other exits on the waterway 22 be provided, for example, to allow the feeding of other spray arms, a shower head, and / or fixed spray elements.

The with the check valve arrangement 26 connected, third output of the water switch 22 can be open at least temporarily. In this way, the storage device 27 with open check valve arrangement 26 by means of the circulation pump 20 be charged with wash liquor S. The in the storage device 27 Rinse liquor SK, SZ can then be stored in the storage device 27 by closing the check valve arrangement 26 stored and by reopening the check valve assembly 26 when the circulating pump is switched off or substantially slower than in the rated operating state via the line sections 131 . 132 . 13 (in the opposite direction to the inflow) from the storage device 27 under the action of gravity back into the collecting pot 20 connected piping system FL1, FL2 with the circulation pump 20 and the heating device 21 and / or in the collection pot 20 be drained.

The storage device 27 has a fleet store 28 with a first chamber 29 and a second chamber 30 on, which by a partition 31 are separated. In this case, the first output of the check valve arrangement 26 over the first pipe section 131 with the first chamber 29 and the second output of the check valve arrangement 26 over the second pipe section 132 with the second chamber 30 connected. In this case, the check valve arrangement 26 designed so that the first chamber 29 and the second chamber 30 each separately from each other with rinsing liquor fed and emptied. In 1 is the first chamber 29 with rinsing fluid SK and the second chamber 30 filled with rinsing solution SZ.

The dishwasher 1 may further include a detergent adding device 34 which, for example, on the inside of the door 6 is arranged. The detergent addition device 34 is through the control device 2 controlled and allows the washing liquor S is added automatically detergent during a rinse cycle.

The dishwasher 1 may also be a rinse aid addition device 35 which also, for example, on the inside of the door 6 can be arranged. The rinse aid addition device 35 is also by the controller 2 controlled and allows the rinse S is added automatically rinse aid during a rinse cycle.

Furthermore, a drain pump 36 Be provided with the no longer required rinsing S and / or cleaning liquid as wastewater AW through a sewer connection 37 can be pumped out. The sewage connection 37 can be connected to an external sewage disposal plant with a sewage hose, not shown.

The 2 and 3 each show a further illustration of the dishwasher of 1 , where the 2 a first cleaning circulation circuit for cleaning the first chamber 29 of the fleet storage 28 illustrated by a cleaning liquid RF and wherein the 3 a second cleaning circulation circuit for cleaning the second chamber 30 of the fleet storage 28 illustrated by the cleaning liquid RF. The fleet storage 28 has both a first overflow at an upper end 32 for the first chamber 29 as well as a second overflow 33 for the second chamber 30 on. So if more cleaning fluid RF in one of the chambers 29 and 30 pumped as this can hold, so the cleaning liquid RF passes through the first overflow 32 or over the second overflow 33 from the fleet storage 28 out. The overflows 32 and 33 are with the rinsing chamber 7 liquid-conducting connected, so that overflowing cleaning liquid RF in the washing chamber 7 arrives and there in the collection pot 19 flows.

So if the check valve arrangement 26 and the water switch 22 are switched so that the circulation pump 20 with one of the chambers 29 . 30 liquid-conducting is connected, so cleaning liquid RF can be circulated in a cleaning circulation, in the wash liquor S from the collecting pot 19 taken and over the circulation pump 20 , the heater 21 , the water switch 22 , the check valve assembly 26 and one of the chambers 29 . 30 as well as the respectively assigned overflow 32 . 33 in the collection pot 19 can be returned.

In particular, the cleaning recirculation circuits allow the same heated cleaning fluid to pass through the first chamber sequentially 29 and the second chamber 30 is circulated so that the chambers 29 . 30 the storage device 27 be cleaned successively with the same cleaning fluid. In this case, if necessary, a screening device, not shown, for example in the collecting pot 19 , serve to sift out dirt from the recirculated cleaning fluid.

Preferably, the cleaning circulation circuit is designed so that an application of washware RF does not occur. In this way, it can be achieved that the cleaning liquid RF does not give off appreciable heat to the items to be washed, so that less energy has to be expended for heating the cleaning liquid RF. In particular, the Reinigungsumwälzkreislauf can be formed so that the spray arms 23 and 24 not part of the cleaning recirculation circuit.

4 shows an exemplary operation of the dishwasher according to the invention the 1 , wherein a rinse SG1 and a subsequent rinse SG2 are shown. A curve Z13 shows the operating state of the inlet water valve 13 , a curve F29 the filling state of the first chamber 29 and a curve F30 the filling state of the second chamber 30 , each on a common time axis t.

The rinse cycle SG1 is, for example, the first rinse cycle after the dishwashing machine has been put into operation 1 , where both chambers 29 and 30 are empty. At the beginning of the pre-wash VG becomes the feed water valve 13 temporarily opened to feed water or fresh water ZW as a washing liquor S in the washing chamber 7 to fill. At the end of the pre-wash cycle VG, the wash liquor S used by means of the drain pump 36 pumped out. Then, at the beginning of the cleaning cycle, RG is again opened by opening the inlet water valve 13 Inlet water ZW as wash liquor S into the rinsing chamber 7 filled. Also, this rinsing liquor is at the end of the cleaning cycle RG by means of the drain pump 36 pumped out. Likewise, at the beginning of the intermediate rinse ZG the feed water valve 13 temporarily opened to feed water ZW as a washing liquor S in the washing chamber 7 to fill. However, at the end of the intermediate wash cycle ZG, the wash liquor S used here is not pumped off, but rather into the second chamber 30 pumped so that it is filled. In the now following rinsing cycle KG is at the beginning again by opening the inlet water valve 13 Inlet water ZW as wash liquor S into the rinsing chamber 7 filled. This becomes the end of the rinse cycle KG in the first chamber 29 pumped so that these too filled. In the final drying cycle TG, however, no rinsing liquor is used. As a result, at the end of the wash cycle SG, the first chamber 29 with the wash liquor SK used in the rinse cycle KG and the second chamber 30 filled with the rinsing liquor SZ used in the intermediate rinse ZG.

In the subsequent rinse SG2 is the second chamber at the beginning of the pre-wash VG 30 emptied, so that for the pre-wash VG less inlet water ZW via the inlet water valve 13 needs to be fed, resulting in a shorter opening time for the inlet valve 13 can knock down. The first chamber 29 on the other hand, RG is emptied only at the beginning of the cleaning cycle, so that also for the cleaning cycle RG less inlet water ZW via the inlet water valve 13 supplied needs, which again in a shorter opening time for the inlet valve 13 can knock down. Overall, this results in a significant saving of inlet water ZW. The further course of the subsequent rinse SG2 corresponds in principle to the sequence of the rinse SG1.

4 additionally shows an optionally executable cleaning sequence RS for cleaning the storage device 27 which a partial cleaning sequence RS1 for cleaning the first chamber 29 and a partial cleaning sequence RS2 for the second chamber 30 includes. In the partial cleaning sequence RS1 is preferably by means of the heater 21 heated cleaning liquid RF, which is partially or completely formed by the rinsing water of the intermediate rinse ZG, by means of the circulation pump 20 over the water switch 22 and the check valve arrangement 26 in the first chamber 29 pumped up this over the overflow 32 overflows and the cleaning liquid RF is circulated in the above-described first Reinigungsumwälzkreislauf, whereby the first chamber 29 is cleaned. In the case of the partial cleaning sequence RS2, on the other hand, it becomes the same and preferably by means of the heating device 21 heated cleaning liquid RF by means of the circulation pump 20 over the water switch 22 and the check valve arrangement 26 in the second chamber 30 pumped until now this over the overflow 33 overflows and the cleaning liquid RF is circulated in the above-described second cleaning circulation, whereby the second chamber 30 is cleaned. It may be sufficient, if necessary, for the cleaning liquid RF to be heated by the heating device only for the first partial cleaning sequence for cleaning the first chamber. A heating of the cleaning liquid amount RF during the second partial cleaning sequence is not required if its temperature after the end of the first cleaning sequence during the execution of the second partial purification sequence above a minimum temperature such. B. of 60 ° C, which is sufficient for proper cleaning, especially degerming and / or degreasing, the second chamber.

When cleaning the storage device 27 Thus, the required amount of cleaning liquid RF can be practically halved compared to a one-chamber memory device with the same capacity for wash liquor S, since the chambers 29 . 30 be cleaned successively with the same cleaning liquid RF. Thus, the required for heating the cleaning liquid RF energy can be halved, neglecting waste heat losses. Namely, the reduced amount of cleaning liquid RF needs to be heated only once and then may be first for cleaning the first chamber 29 and then for cleaning the second chamber 30 be used. It goes without saying that this principle also applies to a storage device 27 can be used, which has more than two chambers.

Advantageously, the rinsing program provides that the cleaning sequence RS is performed immediately before a heated water-conducting partial rinsing cycle, in particular before a cleaning cycle RG or, as shown in the exemplary embodiment, particularly preferably before a final rinse cycle KG. As a result, the interior of the dishwasher 1 heated before the start of the heated water-carrying Teilspülgangs RG, KG, so that the rinsing liquid S of the water-carrying Teilspülgangs RG, KG can be brought to the required temperature with a smaller amount of energy.

Appropriately, the rinsing program provides that the cleaning liquid RF at least partially, preferably predominantly, or, as shown in the embodiment, more preferably substantially from previously used rinse S, in particular from immediately before carried out Teilspülgang such. B. ZG used rinse S, is formed. As a result, the demand for inlet water ZW can be reduced. The cleaning sequence RS can preferably be carried out with the wash liquor S of the last or the penultimate water-carrying partial wash cycle ZG, KG of the respective wash cycle SG1, since the respective wash liquors are generally less contaminated than those of the earlier water-conducting partial wash cycles VG, RG. In this case, the last water-carrying partial rinse cycle can be, in particular, a rinse cycle KG and the penultimate an intermediate rinse cycle ZG.

Likewise, the rinsing program could provide that the cleaning liquid RF is formed at least partially, preferably predominantly, particularly preferably substantially from feed water ZW. In this way, sufficient sterilization and / or cleaning of the storage device 27 be ensured even if no or too little suitable clean rinse S to form a cleaning liquid RF for the cleaning sequence RS is available.

The rinsing program may provide that the cleaning liquid RF at least partially in a water-conducting Teilspülgang VG, RG, ZG, KG of the same or a subsequent rinse SG2, especially in a pre-wash VG, a cleaning cycle RG or an intermediate rinse ZG, the formation of a Rinse liquor S is used, or that the cleaning liquid RF after the cleaning sequence RS, preferably by means of a drain pump 36 for pumping out of wash liquor S, is pumped out. If the cleaning liquid RF is sufficiently clean after the cleaning sequence RS, it can be used in a subsequent partial rinse VG, RG, ZG, KG as rinsing S, which is the total water consumption of the dishwasher 1 lowers. In addition, in many cases, the need for heating energy of the dishwasher 1 can be reduced, since a washing liquor S formed from the cleaning liquid RF usually has a higher initial temperature than inlet water ZW. If the cleaning liquid RF is heavily soiled at the end of the cleaning sequence RS, it can also be pumped outwards. It is possible, the pollution degree z. B. by means of a turbidity sensor, not shown, and depending on the degree of contamination automatically Neither a use of the cleaning liquid RF as a washing liquor S or pumping out the cleaning liquid RF perform.

It may be expedient, in particular, if the cleaning sequence RS, ie a sequential flushing through or flushing out of the two chambers 29 . 30 is carried out by means of the same cleaning liquid RF in two successive partial cleaning sequences RS1, RS2, during one or preferably at the end of an intermediate wash cycle ZG carried out between a cleaning cycle RG and a subsequent final rinse cycle KG. By pumping out the cleaning liquid RF and / or the rinsing liquor of the intermediate rinse cycle after completion of the cleaning sequence RS comprising the two partial cleaning sequences RS1, RS2 by means of the wastewater pump 36 It largely avoids contaminants from the chambers 29 . 30 of the fleet storage enter the rinsing liquor of the subsequent rinse cycle KG, which from the inlet device 12 fresh in the rinsing chamber 7 is admitted. This ensures that the items to be washed are sufficiently clean after the drying cycle and not from contamination, in particular deposits, from the chambers 29 . 30 is contaminated. Since the cleaning liquid RF by means of the heating device 21 is heated for the cleaning sequence, the components such. B. the collection or sump 19 , the piping FL1, FL2, the pump 20 , the water switch 22 , etc. of the respective cleaning cycle, which at the same time belong to the circulation circuit for the spraying operation of the spraying devices of the dishwasher, and there this connection to the interior of the washing chamber 7 has, also the rinsing chamber 7 heated. Thus, part of the heat energy applied for heating the cleaning liquid RF can be indirectly generated by heat transfer to heat the into the rinsing chamber 7 newly introduced amount of fresh water for Klarspülgang KG be used.

Conveniently, the cleaning sequence RS provides that the cleaning liquid RF, preferably by means of a heater 21 for heating rinse liquor S of the dishwasher 1 , is heated so that it reaches a temperature of at least 60 ° Celsius, preferably of at least 65 ° Celsius, and more preferably of at least 70 ° Celsius. At the indicated temperatures sufficient cleaning and / or sterilization of the storage device 27 be guaranteed. When using a usually existing anyway heater 21 for heating rinse liquor S can be dispensed with a separate heating device for the cleaning liquid RF.

Advantageously, the cleaning sequence RS provides an order of cleaning the chambers 29 . 30 before, at the chambers 29 . 30 are cleaned successively with increasing degree of contamination. It is therefore first the chamber cleaned by means of the cleaning liquid RF, which serves to store rinse liquor with the lowest degree of contamination, and then with the same cleaning liquid successively the chambers, which serve to store rinse liquor with greater levels of contamination. In this way, dirt can be prevented from a more soiled chamber 30 in a less polluted chamber 29 is dragged off. If, as shown in the embodiment, two chambers 29 . 30 are provided, wherein the first chamber 29 for storing a rinsing fluid SK from the rinse cycle KG and the second chamber 30 is provided for storing rinse S from the intermediate rinse ZG, it may be useful initially the less polluted first chamber usually 29 and then the usually heavily contaminated second chamber 30 to clean.

Preferably, the cleaning sequence RS provides that the cleaning liquid RF when cleaning one of the chambers 29 . 30 by means of a pump 20 , preferably by means of a circulation pump 20 for circulating rinsing fluid S during a water-carrying Teilspülgangs VG, RG, ZG KG, via a check valve arrangement 26 for fluid-conducting optional connection of the pump 20 each with one of the chambers 29 . 30 into the respective chamber 29 . 30 is pumped. By means of a pump 20 and a check valve arrangement 26 for fluid-conducting optional connection of the pump 20 each with one of the chambers 29 . 30 The cleaning liquid RF can be targeted and automatically into each one of the chambers 29 . 30 be pumped to be effective there cleaning. By using a circulation pump 20 for circulating rinse S during a water-carrying Teilspülgangs VG, RG, ZG, KG, which is usually present anyway, reduces the design effort.

Advantageously, the cleaning sequence RS provides that the cleaning liquid RF when cleaning one of the chambers 29 . 30 in a Reinigungsumwälzkreislauf by the respective chamber 29 . 30 is guided, which is the pump 20 , the check valve assembly 26 and return agents 32 . 33 for returning the cleaning liquid RF from the respective chamber 29 . 30 to the pump 20 includes. By cleaning liquid RF when cleaning one of the chambers 29 . 30 is circulated and not just in the chamber 29 . 30 pumped, the cleaning effect can be improved and accelerated. In addition, it can during the circulation, for example with a heater 21 be heated to heat rinse liquor, so that the desired temperature of the cleaning liquid RF can be easily prepared and maintained.

Preferably, the recirculating agents comprise 32 . 33 an overflow 32 . 33 the respective chamber 29 . 30 , Through an overflow 32 . 33 can be dispensed with complicated return means, such as controlled return valves. The overflow 32 . 33 a chamber 29 . 30 can be designed so that it into the washing chamber 7 opens, so that the cleaning liquid RF in the designated for rinsing fluid S collecting pot 19 and from there to the pump 20 arrives.

Conveniently, the cleaning sequence RS provides, after cleaning one of the chambers 29 . 30 the cleaning liquid RF by their weight force through the check valve arrangement 26 from the respective chamber 29 . 30 drain. In this way, can be dispensed with complicated emptying agents, such as controlled drain valves.

5 shows a first embodiment of a memory device 27 with associated check valve arrangement 26 , The storage device 27 consists here of a common fleet storage 28 who has a first chamber 29 and a second chamber 30 having. Here is the first chamber 29 an overflow 32 and the second chamber 30 an overflow 33 assigned, the chambers 29 . 30 each by a partition 31 of the shared fleet storage 28 are separated. In this way, results in a simple and compact design of the dishwasher 1 , The check valve arrangement 26 includes a first one-way valve 38 for feeling and emptying the first chamber 29 and a second one-way valve 39 for feeling and emptying the second chamber 30 , The first overflow 32 and the second overflow 33 lead through a common line 40 in the rinsing chamber 7 the dishwasher 1 ,

The shared fleet memory is preferred 28 an injection molded part, in particular made of plastic. This is the fleet storage 28 easy to produce, even if it is shaped complex, which may be required due to the limited space in a dishwasher.

6 shows a second embodiment of a memory device 27 with associated check valve arrangement 26 , The storage device 27 also consists of a common fleet storage 28 who has a first chamber 29 and a second chamber 30 having. It is also the first chamber 29 an overflow 32 and the second chamber 30 an overflow 33 assigned, the chambers 29 . 30 each by a partition 31 of the shared fleet storage 28 are separated. The check valve arrangement 26 but includes a multiway valve 41 for optionally filling and emptying the first chamber 29 or the second chamber 30 , The first overflow 32 and the second overflow 33 lead, as in the previous embodiment, via a common line 40 in the rinsing chamber 7 the dishwasher 1 ,

7 shows a third embodiment of a memory device 27 with associated check valve arrangement 26 , The storage device 27 consists here of a common fleet storage 28 who has a first chamber 29 , a second chamber 30 , a third chamber 42 and a fourth chamber 43 having, wherein the chambers 29 . 30 through a partition 31 , the chambers 30 . 42 through a partition 44 and the chambers 42 . 43 through a partition 45 of the shared fleet storage 28 are separated. Here is the first chamber 29 an overflow 32 , the second chamber 30 an overflow 33 , the third chamber 42 an overflow 46 , and the fourth chamber 43 an overflow 47 assigned. The check valve arrangement 26 includes a first one-way valve 38 for filling and emptying the first chamber 29 , a second one-way valve 39 for filling and emptying the second chamber 30 a third one-way valve 48 for filling and emptying the third chamber 42 and a fourth one-way valve 49 for filling and emptying the fourth chamber 43 , The overflows 32 . 33 . 46 . 47 lead through a common line 40 in the rinsing chamber 7 the dishwasher 1 ,

8th shows a fourth embodiment of a memory device 27 with associated check valve arrangement 26 , The storage device 27 consists of a first fleet storage 28 who has a first chamber 29 with an associated first overflow 32 has, from a second fleet memory 50 who has a second chamber 30 with an associated second overflow 33 has, from a third fleet memory 51 who has a third chamber 42 with an associated third overflow 46 and from a fourth float memory 52 who has a fourth chamber 43 with an associated fourth overflow 47 having. This is it possible, spaced apart areas in the dishwasher 1 to use for storing rinse liquor. The check valve arrangement 26 corresponds to that of the previous embodiment.

Overall, it can be stated that by splitting the storage device 27 in two or more areas 29 . 30 . 42 . 43 these can be filled individually. Also, cleaning can be done for each chamber 29 . 30 . 42 . 43 take place in succession. In particular, in each case the same cleaning fluid can be used in each case. It may be sufficient to heat these only once above a minimum temperature for the first part cleaning sequence for cleaning the first chamber of the fleet storage and then perform this, ie the same, heated part cleaning sequence all other partial cleaning sequences for cleaning the other chambers of the fleet storage, if the temperature of Cleaning fluid remains above the minimum temperature during all partial cleaning sequences. Otherwise, if necessary, the cleaning liquid can be reheated. Thus, only a smaller amount of water and energy is required than would be the case with a single-chamber fleet storage, the total storage volume of the sum of the storage volumes of all chambers of the multi-chamber fleet storage tank corresponds. By inserts in the tool, for example, the separations can also be removed or connections for filling to be closed, so that the number of chambers 29 . 30 . 42 . 43 can be varied depending on the device design.

• – Füllen kleinerer Mengen in die einzelnen Kammern 29, 30, 42, 43 möglich.
• – Die Wassermenge in der Speichereinrichtung 27 kann somit pro Kammer, also in kleineren Mengen oder gesamt aus allen Kammern für das Vorspülen verwendet werden.
• – Wasser kann aus den einzelnen Kammern 29, 30, 42, 43 für verschiedene Teilspülgänge VG, RG, ZG, KG verwendet werden (z. B. Wasser aus Zwischenspülgang ZG für Vorspülgang VG, Wasser aus Klarspülgang KG für Reinigungsgang RG).
• – Für die Reinigung der Kammern 29, 30, 42, 43 ist durch serielles Reinigen der Kammern 29, 30, 42, 43 nacheinander weniger Wasser und Energie nötig, da die Kammern 29, 30, 42, 43 mit demselben Wasser gereinigt werden können.
• – Abhängig vom Programm kann auch nur eine der (oder nicht alle) Kammern 29, 30, 42, 43 genutzt werden.
• – Durch Einsätze im Spritzwerkzeug kann der Flottenspeicher 28, 50, 51, 52 variabel gestaltet werden.
• – Die Größe der Kammern 29, 30, 42, 43 kann unterschiedlich groß (unterschiedliches Fassungsvermögen) gewählt werden, um diese im Programmablauf optimal nutzen zu können.
• – Das System kann auch alternativ oder zusätzlich durch mehrere einzelne Flottenspeicher 28, 50, 51, 52 realisiert werden.

By dividing the storage device 27 in several areas 29 . 30 . 42 . 43 There are the following advantages:

• - Filling small quantities in the individual chambers 29 . 30 . 42 . 43 possible.
• - The amount of water in the storage device 27 can thus be used per chamber, ie in smaller quantities or in total from all chambers for pre-rinsing.
• - Water can from the individual chambers 29 . 30 . 42 . 43 for different partial rinses VG, RG, ZG, KG are used (eg water from intermediate rinse ZG for pre-wash VG, water from rinse KG for cleaning RG).
• - For cleaning the chambers 29 . 30 . 42 . 43 is by serially cleaning the chambers 29 . 30 . 42 . 43 successively less water and energy needed, as the chambers 29 . 30 . 42 . 43 can be cleaned with the same water.
• - Depending on the program, only one (or not all) of the chambers may be 29 . 30 . 42 . 43 be used.
• - By inserts in the injection mold, the fleet storage 28 . 50 . 51 . 52 be made variable.
• - The size of the chambers 29 . 30 . 42 . 43 can be chosen in different sizes (different capacities) in order to be able to use them optimally in the program sequence.
• The system can also alternatively or additionally by several individual fleet storage 28 . 50 . 51 . 52 will be realized.

LIST OF REFERENCE NUMBERS

1

dishwasher

2

control device

3

operating device

4

output device

5

rinse tank

6

door

7

rinsing chamber

8th

upper dish rack

9

lower crockery basket

10

out rail

11

out rail

12

Water inlet device

13

Inlet water valve

14

Water supply hose

15

fixed housing

16

casing

17

connecting means

18

Bottom of the washing container

19

collecting pot

20

circulating pump

21

heater

22

water points

23

upper spray arm

24

lower spray arm

25

temperature sensor

26

Check valve arrangement

27

memory device

28

first fleet storage

29

first chamber

30

second chamber

31

first partition

32

Overflow of the first chamber

33

Overflow of the second chamber

34

Detergent feed device

35

Rinse agent adding device

36

Drain pump

37

Waste water connection

38

first one-way valve

39

second one-way valve

40

joint leadership

41

multi-way valve

42

third chamber

43

fourth chamber

44

second partition

45

third partition

46

Overflow of the third chamber

47

Overflow of the fourth chamber

48

third one-way valve

49

fourth one-way valve

50

second fleet storage

51

third fleet storage

52

fourth fleet storage

WH

Water supply, faucet

ZW

water supply

S

Rinse liquor when applying wash ware

SK

already used in the rinse cycle for applying wash ware used rinse

SZ

already used in the intermediate rinse cycle for applying wash ware used

AW

sewage

RF

cleaning fluid

SG1

rinse

SG2

subsequent rinse

VG

prewash

RG

cleaning cycle

ZG

intermediate rinsing

KG

rinse cycle

TG

drying cycle

Z13

Operating status of the inlet water valve

F29

Filling state of the first chamber

F30

Filling state of the second chamber

RS

cleaning sequence

RS1

Partial cleaning sequence for first chamber

RS2

Partial cleaning sequence for second chamber

t

timeline

FL1, FL2

liquid line

L3, L31, L32

line sections

Claims (15)

Dishwasher, in particular domestic dishwasher ( 1 ), with a control device ( 2 ), of which at least one wash program for controlling a wash cycle (SG1, SG2) can be called for cleaning wash ware, wherein the wash cycle (SG1, SG2) comprises a plurality of water-carrying partial wash cycles (VG, RG, ZG, KG) in which the ware in each case with washing liquor (S, SZ, SK) is acted upon and with a memory device ( 27 ) for storing in the rinse cycle (SG1, SG2) already used for loading of items to be washed rinse (SZ, SK) to use the stored rinse (SZ, SK) in a subsequent rinse (SG2) again for applying ware, wherein the at least one rinsing program provides an optional, manually and / or automatically activatable cleaning sequence (RS) in order to store the memory device ( 27 ) to be cleaned by means of a heated cleaning liquid, characterized in that the storage device ( 27 ) several chambers ( 29 . 30 . 42 . 43 ), wherein the purifying sequence (RS) provides for the chambers ( 29 . 30 . 42 . 43 ) to be cleaned successively at least partially with the same cleaning fluid (RF). Dishwasher according to the preceding claim, characterized in that the wash program provides that the cleaning sequence (RS) immediately before a heated water-carrying Teilspülgang (RG, KG), in particular before a cleaning cycle (RG), preferably before a rinse cycle (KG), particularly preferred during one or at the end of between a cleaning cycle (RG) and a subsequent rinse cycle (KG) executed intermediate rinse cycle (ZG) is performed. Dishwasher according to one of the preceding claims, characterized in that the rinsing program provides that the cleaning liquid (RF) at least partially, preferably predominantly, more preferably substantially, from previously used rinse liquor (S, SK, SZ), in particular carried out in immediately before Partial rinse (ZG) used rinse liquor (SZ) is formed. Dishwasher according to one of claims 1 or 2, characterized in that the rinsing program provides that the cleaning liquid (RF) at least partially, preferably predominantly, more preferably substantially, from feed water (ZW) is formed. Dishwasher according to one of the preceding claims, characterized in that the wash program provides that the cleaning liquid (RF) at least partially in one of the cleaning sequence (RS) subsequent water-carrying Teilspülgang (VG, RG, ZG, KG) of the same or a subsequent wash cycle (SG1, SG2), in particular in a pre-wash cycle (VG), a cleaning cycle (RG) or an intermediate rinse cycle (ZG), is used to form a rinsing liquor (S, SK, SZ) or that the cleaning liquid (RF) after the cleaning sequence (RS) , preferably by means of a drain pump ( 36 ) for pumping out rinsing liquor (S, SK, SZ), is pumped out. Dishwasher according to one of the preceding claims, characterized in that the cleaning sequence (RS) provides that the cleaning liquid (RF), preferably by means of a heating device ( 21 ) for heating rinse liquor (S, SK, SZ) of the dishwasher ( 1 ) is heated so that it reaches a temperature of at least 60 ° Celsius, preferably of at least 65 ° Celsius, more preferably of at least 70 ° Celsius. Dishwasher according to one of the preceding claims, characterized in that the cleaning sequence (RS) a sequence of cleaning the chambers ( 29 . 30 . 42 . 43 ), in which the chambers ( 29 . 30 . 42 . 43 ) are cleaned successively with increasing degree of contamination. Dishwasher according to one of the preceding claims, characterized in that the cleaning sequence (RS) provides that the cleaning liquid (RF) during cleaning of the respective chamber to be cleaned (RS) 29 . 30 . 42 . 43 ) by means of a pump ( 20 ), preferably by means of a circulating pump ( 20 ), which serves to circulate rinsing liquor (S, SK, SZ) during a water-carrying partial rinse cycle (VG, RG, ZG, KG), via a check valve arrangement ( 26 ) for the liquid-conducting optional connection of the pump ( 20 ) with the respective chamber to be cleaned ( 29 . 30 . 42 . 43 ) serves, in the respective chamber to be cleaned ( 29 . 30 . 42 . 43 ) is pumped. Dishwasher according to one of the preceding claims, characterized in that the cleaning sequence (RS) provides that the cleaning liquid (RF) during cleaning of the respective chamber to be cleaned (RS) 29 . 30 . 42 . 43 ) in a cleaning circulation circuit, which is preferably designed so that an application of washware with cleaning liquid is omitted, by the respective chamber to be cleaned ( 29 . 30 . 42 . 43 ), and a pump ( 20 ), a check valve arrangement ( 26 ) and return agents ( 32 . 33 . 46 . 47 ) for returning the cleaning fluid (RF) from the chamber (FIG. 29 . 30 . 42 . 43 ) to the pump ( 20 ). Dishwasher according to the preceding claim, characterized in that the return means ( 32 . 33 . 46 . 47 ) an overflow ( 32 . 33 . 46 . 47 ) of the respective chamber ( 29 . 30 . 42 . 43 ). Dishwasher according to one of the preceding claims, characterized in that the cleaning sequence (RS) provides, after the cleaning of the respective chamber to be cleaned ( 29 . 30 . 42 . 43 ) the cleaning liquid (RF) by its weight by a check valve arrangement ( 26 ) from the respective chamber ( 29 . 30 . 42 . 43 ) to let go. Dishwasher according to one of the preceding claims, characterized in that the storage device ( 27 ) a common fleet memory ( 28 ) with several chambers ( 29 . 30 . 42 . 43 ), the chambers ( 30 ) each by a partition ( 31 . 44 . 45 ) of the shared fleet memory ( 28 ) are separated. Dishwasher according to the preceding claim, characterized in that the common fleet storage ( 28 ) is an injection molded part, in particular of plastic, is. Dishwasher according to one of claims 1 to 11, characterized in that the storage device ( 27 ) a first fleet memory ( 28 ) with at least one of the chambers ( 29 ) and at least one separate second fleet store ( 50 . 51 . 52 ) with at least one further chamber ( 30 . 42 . 43 ) of the chambers ( 29 . 30 . 42 . 43 ) having. Method for operating a dishwasher ( 1 ), in particular household dishwasher ( 1 ), in which by a control device ( 2 ) at least one wash program for controlling a wash cycle (SG1, SG2) is called for cleaning wash ware, wherein the wash cycle (SG1, SG2) comprises a plurality of water-carrying partial wash cycles (VG, RG, ZG, KG) in which the wash ware each with wash liquor ( S, SK, SZ) is acted upon, wherein in the rinse cycle (SG1, SG2) rinsing liquor (SK, SZ) already used for charging wash ware in a storage device ( 27 ) is stored in order to use the stored rinsing liquor (SK, SZ) again in a subsequent rinse cycle (SG2) for applying items to be washed, wherein the at least one rinse program provides an optional cleaning sequence (RS) which is activated manually and / or automatically, around the storage device ( 27 ) by means of a heated cleaning liquid (RF), in particular according to at least one of the preceding claims, characterized in that the storage device ( 27 ) several chambers ( 29 . 30 . 42 . 43 ), wherein the cleaning sequence (RS) provides that the chambers ( 29 . 30 . 42 . 43 ) are successively at least partially cleaned with the same cleaning fluid (RF).

Images