EP2323531A2

EP2323531A2 - Dishwasher comprising a sorption drying system

Info

Publication number: EP2323531A2
Application number: EP09781142A
Authority: EP
Inventors: Egbert Classen; Helmut Jerg; Kai Paintner
Original assignee: BSH Bosch und Siemens Hausgeraete GmbH
Current assignee: BSH Hausgeraete GmbH
Priority date: 2008-07-28
Filing date: 2009-07-27
Publication date: 2011-05-25
Anticipated expiration: 2029-07-27
Also published as: AU2009275994A1; US20110114141A1; AU2009276001B2; WO2010012696A2; PL2323531T3; WO2010012703A2; ES2526424T3; CN102105094A; WO2010012696A3; NZ590110A; CN102131438A; NZ590678A; US8961705B2; AU2009276001A1; CN102131438B; JP2011528972A; EP2323531B1; AU2009275994B2; WO2010012703A3; JP2011528968A

Abstract

The invention relates to a dishwasher (GS) comprising at least one sorption drying system (TS), at least one washing container (SPB), and a control device (HE) which is designed to control proper operation of the dishwasher (GS) by means of a washing program. The dishwasher (GS) further comprises input means (BF, T1, T2, T3, T4) which are connected to the control device (HE) and are used for modifying the washing program.

Description

Dishwasher with sorption drying system

The present invention relates to a dishwasher, in particular a domestic dishwasher, with at least one washing container and at least one sorption drying system for drying items to be washed, wherein the

Sorptionstrocknungssystem having at least one sorption container with reversibly dehydratable sorption drying material, which is connected for the passage of an air flow through at least one air duct with the washing container,

For example, DE 103 53 774 A1, DE 103 53 775 A1 or DE 10 2005 004 096 A1 disclose dishwashers with a so-called sorption column for drying dishes. In this case, in the partial program step "drying" of the respective dishwashing program of the dishwasher for drying dishes, humid air from the washing compartment of the dishwasher is passed through the sorption column by means of a blower and moisture is withdrawn from the air through it by its reversibly dehydratable sorption drying material the reversibly dehydratable sorption drying material is heated to very high temperatures, whereby water stored in this material passes out as hot water vapor and is conducted into the rinsing vessel by a flow of air generated by the blower, thereby allowing a rinsing liquor, such as dishes, to be stored in the rinsing vessel , and / or the air in the washing container are heated.

Such a sorption column has proven to be very advantageous for an energy-saving and quiet drying of the dishes. In order to avoid local overheating of the sorption drying material during the desorption process, for example in DE 10 2005 004 096 A1, a heater is arranged in the flow direction of the air in front of the air inlet of the sorption column. Despite this "air heating" during desorption, it remains difficult in practice to always sufficiently and properly dry the reversibly dehydratable dry material. The object of the invention is to provide an improved dishwasher, in particular an improved domestic dishwasher with a sorption drying system.

The object of the invention is achieved by a dishwasher having at least one rinsing container, a control device which is set up to control the intended operation of the dishwasher by means of a rinsing program, and at least one sorption drying system for drying items to be disposed within the rinsing container and to the control device connected input means for modifying the wash program. The dishwasher according to the invention is in particular a household dishwasher.

The dishwasher according to the invention accordingly comprises the washing container in which the items to be washed, e.g. Crockery, can be arranged, and the control device that controls the intended operation of the dishwasher according to the invention, in particular provided for cleaning the items to be washed program. The dishwasher according to the invention further comprises the

Sorption drying system, which is intended to dry the items to be washed, in particular at the end of the washing program, for example, during a drying step. In addition, the dishwasher according to the invention also has the input means connected to the control device, by means of which e.g. an operator can modify the wash program. By "modifying the wash program", not only a modification of one or more partial program steps that are carried out during the wash program, but also the selection of a wash program from a plurality of wash programs should be understood here.

Due to the input means, which may be embodied, for example, as keys or program keys, the rinsing program can be changed and adapted, for example, to the items to be washed or the loading state of the dishwasher according to the invention or to the preferences of an operator of the dishwasher according to the invention in a relatively simple manner. Accordingly, a program differentiation "sorption drying" is possibly made possible by means of the input means. According to a variant of the dishwasher according to the invention, the sorption drying system has at least one sorption container with reversibly dehydratable sorption drying material, which is connected for passage of an air flow via at least one air duct with the washing. The sorption container may preferably be designed with such a geometry shape that its sorption unit with the sorption drying material is made a flow direction specification for the air flow substantially in or against the direction of gravity. As a result, it is largely ensured that moist air, which is guided through the air duct from the washing container into the sorption container during the respective desired drying process and whose sorption unit flows through the sorption drying material, by sorption by means of the sorption

Sorptionstrockner material can be dried properly, reliable and energy efficient. Later after this drying process, e.g. in at least one Spüloder cleaning process of a later, newly started dishwashing program, the sorbent for treatment for a subsequent drying process properly, energy efficient and material gently regenerated by desorption, i. can be prepared.

In particular, the sorption of this variant can be particularly compact and space-saving form due to its specific flow characteristics and still accommodate the required for proper sorption and desorption amount of Sorptionstrocknungsmaterial in the sorption.

This geometry of the sorption container of this embodiment also makes it possible, in particular, for the original or initial sorption and sorption behavior of the sorption unit to be largely retained even if the sorption drying material in the sorption unit is compacted during the life of the dishwasher due to its own weight, ie settles and thus loses height. Due to the advantageous flow direction specification of the sorption container essentially in or counter to the direction of gravity with air, in particular in the vertical direction relative to a substantially horizontal penetration surface of the sorption, such possible material settlements of Sorptionstrocknungsmaterials interfere with the functionality, ie in particular moisture, preferably Water absorption capacity, and moisture, preferably water delivery, of the sorption hardly or not at all. The functionality of the sorption drying system is therefore still ensured. For in the construction according to the invention can be based on a substantially horizontal penetration surface of the sorption at each point preferably in about the same layer, in particular bulk ratios, and thus about the same

Flow conditions or concomitant flow resistance conditions over the product life of the dishwasher ensure what allows optimal utilization of the sorption and / or desorption of the sorbent material at the same time low amount of material. Furthermore, inadmissible shifts in material that could lead to local material accumulations or local material thinning and associated impairments, overstressing or even damage to the sorption drying material during the respective sorption process or desorption process can be largely avoided by the inventive geometry of the sorption container. In contrast to a sorption container, which defines a substantially horizontally oriented mounting of the sorption unit and its horizontal flow with air, in the inventive geometry of the sorption of the air flowing through the Sorptionseinheit an airway with flow direction substantially in or against the direction of gravity, ie in particular in the vertical direction, given, in particular forced.

The sorption unit can be arranged in the sorption container such that the total volume, in particular bulk volume, of its sorption drying material can be flowed through from the rinsing container substantially in the vertical throughflow direction, counter to the direction of gravity. As a result, the originally predetermined layering, in particular bedding ratios of the sorption drying material at all locations of the inlet cross-sectional area of the sorption unit are essentially retained even after a possible material settling during the lifetime of the dishwasher.

In particular, the volume of the sorption drying material at any location downstream of the inlet cross-sectional area of the sorption unit may advantageously have substantially the same layer height, even if over time for material deposition comes. As a result, are always largely homogeneous or similar

Flow conditions based on the respective passage cross-sectional area of the sorption ensured, which favors or facilitates the respective sorption and desorption.

The storage of the sorption can be done in the sorption such that it is impressed a substantially vertical flow direction. As a result, it is largely avoided that sorption-drying material settlements can lead to the formation of a bypass channel in the sorption unit in which there is less or no sorption-drying material. Because of such undesirable, non-uniform sorption drying material distribution over the

Indeed, as viewed in the flow cross-section of the sorption unit, e.g. their sorption efficiency, desorption efficiency, and material aging are impaired.

In particular, the sorption container can be designed and arranged as a throughflow channel such that its throughflow space is predetermined to have a substantially vertical throughflow direction. He can advantageously for the air flowing through in particular form a chimney-type drying device with vertical Hauptdurchzugsrichtung in the respective sorption process or a chimney-type heating device with a vertical main pulling direction in the respective desorption process.

Appropriately, the sorption container may be substantially pot-shaped, tubular, sleeve-shaped, or cylindrical. These geometry shapes are compact and facilitate the placement of the sorption unit and optionally one or more further components such as e.g. a heating device or

Flow conditioning elements. In this case, viewed in the vertical direction, the sorption unit, viewed in the vertical direction, may have one or more side walls or sheaths around the interspace of its lower inlet cross-sectional area and its upper exit cross-sectional area arranged therefrom at predetermined height spacing, which run partially or completely in particular in a substantially vertical positional plane. The respective casing around the outer circumference of the sorption unit can, in particular, also already be provided by one or more wall parts of the inner casing of the sorption container be formed, which surrounds the sorption around. This is the

Sorptionstrockner the sorption advantageously an outer shell predetermined, which extends in the height direction between its lower air inlet cross-sectional area and its arranged thereof in a predetermined height distance thereof, upper air outlet cross-sectional area.

Furthermore, the sorption container can advantageously have a substantially horizontally arranged base part and a substantially horizontally arranged cover part. As a result, the various elements or components of the sorption container can be assembled in a simple manner. In particular, it may be expedient if the sorption unit and / or optionally a heating device arranged in advance in the sorption container form a substantially vertically oriented or upright sorption column. To accommodate such a sorption column, in particular a substantially vertically aligned sleeve or cylinder shape of the sorption container may be expedient.

In particular, the sorption drying material in the sorption unit of the sorption container can completely fill a bulk volume which lies between the essentially horizontally arranged flow inlet cross-sectional area and the largely parallel flow outlet cross-sectional area. In the interior of the housing jacket of the sorption container, for this purpose, in particular at least one substantially horizontally arranged, lower air-permeable bottom element is provided as part of the sorption unit, on which the sorption drying material is stored. The housing of the sorption container advantageously forms at the same time a peripheral side coating around the air-permeable bottom element such that the sorption drying material is laterally enclosed and held on the air-permeable bottom element with a desired layer or bed height. Possibly. For example, the sorption unit can also have its own side casing or casing, ie in general terms one or more housing side walls, in addition to its outer circumference. In the interior of the housing jacket of the sorption container, at least one substantially horizontally arranged, upper air-permeable ceiling element may expediently be provided as part of the sorption unit at a desired layer height from the lower air-permeable bottom element. This is the sorption material in the Sorption unit between the lower floor element and the upper ceiling element largely reliable position.

In particular, the sorption unit of the sorption container may have at least one lower, essentially horizontally arranged sieve element or grid element as an air-permeable bottom element and at least one upper, substantially horizontally arranged sieve element or grid element as an air-permeable ceiling element at a predetermined height distance from one another. The volume of space between these two substantially horizontally arranged sieve elements or grid elements and the lateral housing shell of the sorption container is expediently largely completely filled with sorption drying material. As a result, a desired storage and distribution of the sorption drying material over the entire service life of the dishwasher can be reliably maintained in a defined manner. In particular, this makes it possible to ensure that, at all air inlet points of the inlet cross-sectional area of the sorption unit, the sorption-drying material on the bottom air-permeable bottom element has approximately the same, i.e. the same. constant layer or bulk thickness can be stored. As a result, it is advantageously possible to set a substantially homogeneous, uniform flow resistance at every point of the inlet cross-sectional area of the sorption unit. In particular, a sorption unit or sorption column is thereby formed, which allows for compact dimensions a proper recording of a certain amount of water to be dehumidified air at each Sorptionsvorgang and at the same time a perfect, largely complete expulsion of this stored water energy efficient in the next desorption. In addition, in this advantageous storage of the sorption drying material of the sorption, in which this is traversed in particular against the direction of gravity of air, the respective volume of sorption drying material for all entry points of the air inlet cross-sectional area of the sorption itself remains largely the same when the sorption drying material in the course of the product life of Dishwasher down settle and its layer, in particular Schütthöhe, would be smaller if, with respect to all entry points of the

Air inlet cross-sectional area of the sorption was given a constant layer height of Sorptionsmaterialvolumen as the initial state. The flow-through characteristic and the flow resistance characteristic then remain for the sorption material volumes of all entry points behind the

Air inlet cross-sectional area of the sorption substantially uniform. The formation of an undesired bypass channel without or with too little Sorptionstrocknungsmaterial within the sorption and local Sorptionsmaterialaufpumpenungen are thus largely avoided. As a result, all sorption drying material in the sorption container can always be used in an energy-efficient manner for the respective sorption and desorption. Since advantageously a relatively small amount of sorption drying material can already be sufficient to achieve a desired sorption and desorption effect, the housing dimensions of the sorption container can also be kept so compact that a space-saving installation of the sorption container, in particular in the bottom assembly below the bottom of the dishwasher , is possible.

Dishwashers undergo washing programs that have a plurality of program steps for cleaning items to be washed. In particular, the respective rinsing program may comprise at least the following individual program steps which take place one after the other: at least one pre-rinsing step by adding liquid, in particular water, to remove coarse soiling, at least one cleaning step adding detergent to the liquid, in particular water, at least one intermediate rinsing step, at least one rinsing step with application of relaxants, in particular rinse aid, offset liquid such as Water, and at least one final drying step in which the cleaned items to be dried. Depending on the cleaning step or rinsing process of a selected washing program, rinse liquor liquid is used, for example. Fresh water and / or clean service water for the respective pre-wash and / or intermediate rinse, with at least one cleaner added fresh water and / or service water, e.g. for the respective cleaning process, or for the respective intermediate rinsing, and / or added with rinse aid added fresh water and / or preferably clean hot water for a rinse on the respective items to be rinsed.

According to one embodiment of the dishwasher according to the invention, the control device is set up such that, due to an actuation of the input means, the rinsing step is carried out completely without heating one for the rinsing step used rinse aid is performed. Thereby, the energy consumption of the dishwasher according to the invention can be reduced because the rinse aid is not heated extra, for example by means of a water heater.

According to a further variant of the dishwasher according to the invention whose control device is set up such that due to an actuation of the

Input means, the control device performs the drying step exclusively by means of the Sorptionstrocknungssystems. In particular, in connection with the variant, due to which the rinse aid is not heated extra, results in a relatively significant energy savings compared to a conventional dishwasher, since at least during the rinse step and the subsequent drying step, no additional water heater is subjected to electrical energy.

In order to achieve an increase in the drying result (drying performance), the control device of the dishwasher according to the invention can also be designed such that due to an actuation of the input means the

Control device increases the time during the drying step. This is particularly advantageous if the drying step is carried out exclusively by means of the sorption drying system. As a result, an improved drying of the items to be washed, in particular all tableware parts is achieved, so that a 100% drying of all dishes can be achieved.

The increase in the duration of the drying step can be achieved, for example, by the control device of the dishwasher according to the invention turning on a blower of the sorption drying system for a longer period of time.

An improved drying result of the items to be washed can alternatively be achieved or additionally improved if, according to a further embodiment of the dishwasher according to the invention, the control device actuates the dishwasher by actuating the input means such that a rinse aid is heated for the final rinse step. This can for example be realized by the control device is connected to a water heater and this drives to heat the rinse aid. So it is possible to achieve a 100% drying of all dishes. For example, in order to achieve a shorter "program runtime" with the same cleaning result, ie to shorten the duration of the washing program, according to a variant of the dishwasher according to the invention, the control device is set up in such a way that the dishwasher is activated in such a way that one for the cleaning step This can be achieved, for example, by connecting the control device to a continuous flow heater, which is set up to heat the cleaning liquid or the liquid, wherein the control device is set up, the through-flow heater During the cleaning step or the pre-rinsing step, it is at least partially possible to switch on. According to this variant, it is possible that when the sorption drying system is switched on, the program running time is opposite he conventional drying systems (without Sorptionstrocknung) to reduce. Due to the actuation of the input means, the control device may, in addition to heating the respective rinsing liquor by means of a desorption process, heat the rinsing liquor, for example by means of the flow heater, in particular in the sump of the dishwasher according to the invention, for example during the pre-rinsing step and / or the cleaning step.

The "program runtime", ie the duration of the rinsing process, can alternatively be shortened or additionally shortened if according to a further embodiment of the dishwasher according to the invention the control device actuates the dishwasher in such a way that during the cleaning step and / or the pre-rinsing step on the basis of an actuation of the input means This can be achieved, for example, by the control device being connected to a circulating pump and operating a motor driving the circulating pump for the increased spraying pressure at an increased speed Furthermore, by increasing the rinse temperature, the drying time can be shortened.

Due to the "sorption drying" drying system, it is possible to keep energy consumption at the same level as conventional dishwashers, despite a shorter "program runtime". The control device of the dishwasher according to the invention can also be designed such that it starts at the same time a desorption of the sorption drying system due to an actuation of the input means during the pre-rinsing and / or cleaning step. This makes it possible that the cleaning result or the cleaning performance is increased with the same duration, without the energy consumption of the dishwasher according to the invention is higher than in conventional dishwashers.

Depending on the embodiment of the dishwasher according to the invention, a program differentiation "sorption drying" is thus made possible by means of the input means, in particular program keys.

Upon actuation of e.g. A key to energy is energy saving, which is achieved by not heating in the rinse cycle and drying the dishes (generally: dishes) by means of sorption drying.

By pressing a button "drying performance" it may be possible to achieve a 100% drying (all tableware parts are dry) .The adjustment of the washing program can be triggered in particular by means of a button. Increasing the blower life of the blower of the sorption system) and / or by increasing the rinse temperature by means of heating.

When operating a button "program runtime" can be shortened by additional heating, for example in the cleaning phase and, for example, optionally by increasing the scavenging pressure, for example realized by increasing the engine speed of a circulation pump of the dishwasher according to the invention, the term for cleaning the items to be washed by increasing the rinse temperature, the drying time can be shortened. Due to the drying system "sorption drying", it is possible that the energy consumption of the dishwasher according to the invention is at the same level as for conventional dishwashers.

Upon actuation of e.g. a button "program performance" can analogously to the "program runtime" of the button "program runtime" with the same running time

Cleaning performance can be increased without increasing the energy consumption compared to conventional dishwashers.

Other developments of the invention are given in the dependent claims.

An embodiment of the invention is illustrated by way of example in the accompanying schematic drawings. Show it

1 shows schematically a domestic dishwasher with a washing container and a sorption drying system,

Fig. 2 shows a schematic perspective view of the open

Washing container of the dishwasher of Figure 1 with components of the sorption drying system which are partially exposed, i. are drawn without cover,

Fig. 3 in a schematic side view of the entirety of

Sorptionstrocknungssystems of Figure 1, 2, the components are partially housed on the outside of a side wall of the washing and partly in a floor assembly below the washing container,

Fig. 4 each as a detail schematically in perspective

Exploded view of various components of the sorption of the sorption drying system of Figure 1 with 3,

5 is a schematic plan view of the sorption container of FIG. 4; Fig. 6 seen in a schematic plan view from below as a component of

5, a slotted sheet for the flow conditioning of air flowing through sorption drying material in the sorption container,

Fig. 7 seen in a schematic plan view from below as another

Detail of the sorption container of Figure 4 a coil heater for heating sorption drying material in the sorption to its desorption,

Fig. 8 in a schematic plan view of the above considered the

Tube coil heater of Figure 7, which is disposed above the slot plate of Figure 6,

9 is a schematic sectional side view of the sorption of the figures 4, 5,

10 is a schematic perspective view of the internal structure of the sorption container of FIGS. 4, 5, 9 in the partially cutaway state,

Fig. 1 1 in a schematic plan view of viewed from above the

The entirety of the components of the sorption drying system of FIGS. 1 to 10,

Fig. 12 with 14 schematically in different views the outlet of the

Sorption drying system of Figures 1 with 3 as a detail,

15 is a schematic sectional side view of the inlet element of the sorption drying system of FIG. 1 with FIG. 3 as a detail, FIG. Fig. 16 in a schematic plan view of the above considered

Floor assembly of the domestic dishwasher of Figure 1 and Figure 2,

17 is a schematic illustration of the thermoelectric heat protection of the sorption container of FIGS. 4 to 10 of FIG

Sorptionstrockner system of Figures 1 with 3, 11, and

Fig. 18 is a control panel of the domestic kitchen dishwasher.

Elements with the same function and mode of operation are each provided with the same reference numerals in FIGS.

Figure 1 shows a schematic representation of a household dishwasher GS as an example of a dishwasher, as a main components a rinse tank SPB, arranged underneath a bottom assembly BG and a

Sorptionstrockner system TS has. The sorption drying system TS is preferably external, i. provided outside of the washing container SPB partly on a side wall SW and partly in the bottom assembly BG. It comprises as main components at least one air duct LK, at least one fan unit inserted in it or a fan LT and at least one sorption tank SB. in the

Rinsing tanks SB are preferably one or more mesh baskets GK for receiving and rinsing dishes such as e.g. Housewares housed. For spraying the ware to be cleaned with a rinsing liquor liquid, one or more spraying devices, e.g. one or more rotating spray arms SA provided in the interior of the washing container SPB. In the case of the present embodiment, both a lower spray arm and an upper spray arm are suspended in the washing container SPB in a rotating manner.

Dishwashers undergo washing programs that have a plurality of program steps for cleaning items to be washed. In particular, the respective washing program may comprise at least the following individual program steps taking place one after the other: at least one pre-rinsing step by adding liquid, in particular water, to remove coarse soiling; at least a cleaning step with detergent addition to liquid, especially water; at least one intermediate rinse step; at least one rinsing step with application of with relaxation agents, in particular rinse aid, offset liquid such as water; and at least one final drying step in which the cleaned items are dried. Depending on the cleaning step or rinsing process of a selected dishwashing program is as Spülflotten-liquid eg

Fresh water and / or clean service water for the respective pre-wash and / or intermediate rinse, with at least one cleaner added fresh water and / or service water, e.g. for the respective cleaning process, or for the respective intermediate rinsing, and / or added with rinse aid added fresh water and / or preferably clean hot water for a rinse on the respective items to be rinsed.

The fan unit LT and the sorption SB are in the case of the present embodiment in the bottom assembly BG below the bottom BO of the washing container SPB housed. The air duct LK runs from one

Outlet opening ALA, which is provided above the bottom BO of the washing container SBP in the side wall SW, outside of this side wall SW with an inlet-side pipe section RA1 down to the fan unit LT in the bottom assembly BG. Via a connecting section VA of the air duct LK, the outlet of the fan unit LT is connected to an inlet opening EO of the sorbent container SB, in this case preferably in its area near the floor. The outlet opening ALA of the washing container SPB is provided in the case of the present embodiment above the bottom BO, preferably in the central region or in the central region of the side wall SW, for sucking air from the interior of the washing container SPB. Alternatively, it is also possible to mount the outlet opening ALA in the rear wall RW (see FIG. 2) of the washing container SPB. More generally, it may be particularly advantageous to have the outlet opening preferably at least above a foam level to which foam, e.g. can form in a cleaning process or rinsing, preferably in the upper half of the rinse tank in one of its side walls and / or provide back wall.

Optionally, the outlet opening may also be provided in the top wall of the washing compartment. If appropriate, it may also be expedient to have a plurality of outlet openings in at least one side wall, ceiling wall, and / or the rear wall the rinsing container SPB and connect them via at least one air duct with one or more inlet openings in the housing of the sorbent SB before the beginning or beginning of the Sorptionstrocknungsmaterialstrecke. Optionally, it may be appropriate to provide a plurality of air ducts simultaneously, ie parallel to each other, between the one or more outlet openings of the washing container SPB and the one or more inlet openings of the sorbent container SB.

The fan unit LT is preferably designed as an axial fan. It serves for the forced flow of a sorption unit SE in the sorption container SB with moist-hot air LU from the rinsing container SPB. The sorption unit SE contains reversibly dehydrogenatable sorption drying material ZEO, which is capable of taking up and storing moisture from the air LU passed through it, which is sucked in from the rinsing tank SPB by the fan unit LT into the air duct LK and the subsequent sorption tank SB. The sorption SB has in the near-ceiling region of its housing GT on the top of an outflow opening AO (see Figures 4, 5), which is connected via an outlet element AUS through an insertion opening DG (see Figure 13) in the bottom BO of the washing compartment SPB with its interior , In this way, during a drying step of a dishwashing program for drying clean items to be damp hot air LU from the interior of the washing container SPB through the outlet opening ALA through the activated fan unit LT in the inlet-side pipe section RA1 of the air duct LK be sucked and via the connecting portion VA in the Inner of the sorbent SB for Zwangsbeströmung the reversibly dehydratable sorption drying material ZEO be transported in the sorption SE. The sorption drying material ZEO of the sorption unit SE increases in each case

Drying step out of the flowing, moist air water, so that after the sorption SE dried air can be blown through the outlet or Ausblaselement OFF in the interior of the washing container SPB. In this way, a closed air circulation system is provided by this sorption drying system TS. The spatial arrangement of the various components of this

Sorption drying system TS is illustrated in the schematic perspective view of Figure 2 and the schematic side view of Figure 3. In the figure 3, the course of the bottom BO of the washing compartment SPB is additionally dot-dashed drawn, whereby the spatial-geometric relationships of the structure of the Sorptionstrocknungssystems TS can be better illustrated.

The outlet opening ALA is preferably arranged at a location above the bottom BO, which allows in particular during the respective drying process during sorbing the collection or suction of as much hot-humid air LU or from the washing container SPB in the air duct LK, without the risk exists that in an improper way liquid or foam can get over the air duct to sorption SB. After a cleaning process, in particular rinsing with heated liquid, moist hot air preferably collects above the bottom BO, in particular in the upper half, of the washing container SPB. The outlet opening ALA is preferably at an altitude above the level of foam, which may occur during regular flushing operation or in the event of a fault. In particular, foam may e.g. be caused by detergent in the water during the cleaning process. In particular, the position of the exit point or outlet opening ALA is advantageously selected such that for the inlet side

Pipe section RA1 of the air duct LK a still increasing distance on the side wall SW and / or rear wall is freely available. The outlet opening or outlet opening preferably in the ceiling area, middle area, and / or upper area of the side wall SW and / or rear wall RW of the washing container SPB also largely prevents water from the sump in the bottom of the washing container or from its liquid spraying system through the outlet opening ALA the rinsing container SPB injected directly into the air duct LK during the respective cleaning or rinsing process and then can get into the sorbent SB, which otherwise unduly moist, partially or completely damage or even unusable its sorption drying material ZEO.

In the sorption container SB, at least one heating device HZ for desorption and thus regeneration of the sorption drying material ZEO is arranged upstream of its sorption unit SE in the flow direction. The heating device HZ and the downstream sorption unit SE form a substantially vertical one

Sorptionskolonnenanordnung. The heating device HZ is used for heating air LU, which are driven through the fan unit LT through the air duct LK in the sorption SB for the respective desorption process can. This positively heated air absorbs the stored moisture, in particular water, from the sorption drying material ZEO as it flows through the sorption drying material ZEO. This expelled from the sorption drying material ZEO water is transported by the heated air through the outlet element AUS of the sorbent SB into the interior of the washing. This desorption process may preferably take place when the heating of the

Rinsing liquor for a cleaning process or other rinsing of a subsequent dishwashing program is desired. In this case, the heated for the desorption process by the heater HZ air flowing through the sorbent material of the sorbent, at the same time be used to heat the respective Spülflotten- liquid during the respective pre-wash or cleaning process in the washing SPB, which is energy efficient.

FIG. 2 shows, with the door TR of the dishwasher GS of FIG. 1 open, main components of the sorption drying system TS in the side wall SW and of the base assembly BG partially in exposed state in a perspective view. FIG. 3 shows the entirety of the components of the sorption drying system TS seen from the side. The leading to the fan unit LT, inlet-side pipe section RA1 of the air duct LK has starting from the height position of its inlet opening El at the location of the outlet opening ALA the Spülbehälters SPB with respect to the direction of gravity upwardly rising pipe section AU and then with respect to the direction of gravity SKR downwardly sloping pipe section AB , The upwardly rising pipe section AU extends in the case of the present embodiment, slightly inclined with respect to the vertical direction of gravity SKR upward and passes into a curved section KRA, which is bent convexly and for the incoming air flow LS1 a direction reversal by about 180 ° down in the adjoining, substantially vertically downwardly sloping pipe section AB forces. This ends in the fan unit LT, which is housed in the floor assembly BG. The first, upwardly rising pipe section AU, the curvature section KRA, and the downstream, second, downwardly sloping pipe section AB form in the case of the present embodiment, a flat channel with a substantially flat rectangular cross-sectional geometry shape. Here, the back and the front wall of the flat channel run in Essentially parallel to the positional plane of the side wall SW of the washing compartment.

In particular, the rear wall of the flat channel is mounted on the side wall SW and lies there largely flat.

In the interior of the curvature section KRA, one or more flow guide ribs or drainage ribs AR are provided, which follow its curvature profile. In the case of the present exemplary embodiment, a plurality of arcuate drainage ribs AR are essentially nested concentrically in one another and arranged at a transverse distance from one another or at a gap from one another in the interior of the curved section KRA. They extend in the case of the present embodiment also in the rising pipe section AU and in the sloping pipe section AB on a partial length. These drainage ribs AR are arranged at height positions above the outlet ALA of the purge tank SPB and the inlet El of the inlet side pipe section RA1 of the air duct LK. These drainage ribs AR serve, in particular during the sorption process, in which steam is present in the rinsing container after the end of the rinsing process, to absorb liquid droplets and / or condensate from the airflow LS1 sucked in from the rinsing container SPB. In the section area of the upwardly rising pipe section AU, the liquid droplets collected at the flow guide ribs AR can drip off in the direction of the outlet ALA. In the region of the downwardly sloping tube section AB, the liquid droplets can drip off the flow guide ribs AR in the direction of at least one return rib RR. The return rib RR is provided at a point in the interior of the sloping pipe section AB, which is higher than the outlet opening ALA of the washing container SPB or higher than the inlet opening El of the air duct LK. The return rib RR in the interior of the sloping pipe section AB forms a drainage slope and is aligned with a cross-connection line RF in the direction of the outlet ALA of the washing compartment SPB. The cross-connection line RF bridges the gap between the leg of the upwardly rising pipe section AU and the leg of the downwardly sloping pipe section AB. The cross-connection line RF thus connects the interior of the upwardly rising pipe section AU and the interior of the downwardly sloping pipe section AB with each other. The gradient of the return rib RR and the adjoining, aligned cross-connection line RF is selected such that a condensate return of condensate and / or other liquid droplets, which drip down from the drainage ribs AR in the region of the sloping pipe section AB, is ensured in the outlet opening ALA of the washing container SPB. As a result, it is not necessary to provide an additional, separate condensate collection and return device extra to the air duct.

The drainage ribs AR are preferably mounted on the inner wall of the air duct LK facing away from the Spülbehälterseitenwand SW, since this outer side inner wall of the air duct is cooler than the flushing tank SPB facing inner wall of the air duct. At this cooler inner wall condensate precipitates stronger than on the side wall SW facing inner wall of the air duct LK down. It may therefore be sufficient if the drainage ribs AR are designed as web elements which are only of a partial depth or partial height of the total cross-sectional depth (ie considered perpendicular to the side wall SW of the outer inner wall of the LK) of the formed as a flat channel air duct in Direction to the inner, the side wall SW facing inner wall of the air duct, so that viewed in the depth direction remains a cross-sectional gap to the air flow. Optionally, however, it may also be expedient to design the drainage ribs AR between the outer inner wall and the inner inner wall of the air duct LK as a continuous air guide rib. This makes it possible to achieve a more targeted air guidance and air deflection, in particular in the curved section KRA, by providing a multiplicity of individual air ducts separated from one another, since the throughflow velocity for the respectively flowing air mass can be increased by their narrower flow cross sections. Disturbing Luftverwirbelung are thus largely avoided. In this way, a desired air volume can be promoted by designed as a flat channel Lüftführungskanals LK.

The return rib RR is preferably mounted on the inside of the outer inner wall of the air duct LK as a web element, which protrudes toward a partial depth of the total depth of the flat formed air duct LK towards its inner inner wall. This ensures that a sufficient passage cross-section remains free in the region of the return rib RR for the passage of the air flow LS1. Alternatively, it may of course also be appropriate, the Form return rib RR as a continuous element between the outside inner wall and the inner inner wall of the air duct LK and provide for the passage of air in particular centrally located passages.

In particular, the drainage ribs AR and the return rib RR also serve to separate water droplets, detergent droplets, rinse aid droplets, and / or other aerosols which are in the air LS1 flowing from the interior of the rinsing container and return them into the rinsing container SPB through the outlet opening ALA. This is particularly advantageous in a desorption process, when at the same time a cleaning step or other rinsing takes place with heating of the rinsing liquor liquid. Otherwise, namely, the desorption could be impaired, since the sorption drying material would be made unduly wet or humid by such entrained aerosols and liquid droplets. During the respective cleaning step or rinsing step, a relatively large amount of steam or mist can be present in the rinsing container SPB, in particular due to the spraying of rinsing liquid by means of the spray arms SA. Such a vapor or mist may contain finely distributed both water, cleaning agents, rinse aid and / or possibly other cleaning agents. For these finely dispersed liquid particles entrained in the air flow LS1, the drainage ribs AR, a deposition device, form. Alternatively, instead of drainage ribs AR, other deposition means, in particular structures with a plurality of edges, such as e.g. Wire mesh, be provided.

In particular, the obliquely upward or substantially vertically rising pipe section AU ensures that liquid droplets or even spray jets, which are from a spraying device SA, such as a spray arm at the respective

Cleaning process or other rinsing, be sprayed, largely prevented from being able to pass directly through the sucked air flow LS1 in the Sorptionstrocknungsmaterial ZEO of the sorbent SB. Without this retention or deposition of liquid droplets, in particular mist droplets or vapor droplets, the sorption drying material ZEO could be rendered inadmissibly moist and useless for a sorption process during the drying step. In particular, it could lead to premature saturation by introduced liquid droplets such as mist droplets or vapor droplets. By the inlet side, ascending branch AU of the feedthrough channel and / or the one or more Abscheidungs- or interception elements in the upper knee area or apex portion of the curvature section KRA between the rising branch AU and the sloping branch AB of the feedthrough channel so it is largely avoided that water droplets, detergent droplets , Rinse droplets, mixture droplets thereof, and / or other aerosol droplets can continue beyond this barrier down to the fan LT and from there into the sorption SB. Of course, it is also possible, instead of the combination of rising pipe section AU and sloping pipe section AB and instead of the one or more deposition elements to provide a differently designed barrier device with the same filter function.

In summary, in the case of the present exemplary embodiment, the domestic dishwasher GS has a drying device for drying items to be washed by sorption by means of reversibly dehydratable sorption drying material, which is stored in a sorption container SB. This is connected via at least one air duct with the washing container SPB for generating an air flow. The air duct preferably has along its inlet-side pipe section a substantially flat rectangular cross-sectional geometry shape. As a result, it can advantageously in the space between at least one outer wall of the washing and an outer housing of the

Household dishwasher GS can be stored to save space. The air duct, viewed in the direction of flow, preferably transitions over its inlet-side pipe section, which lies above the outlet opening of the washing container, in particular into a substantially cylindrical tubular section, with which it opens into the fan unit. He is preferably from at least one

Plastic material produced. It is arranged in particular in the intermediate space between a side wall and / or rear wall of the washing container and an outer housing wall of the domestic dishwasher GS. The air duct has advantageously at least one upwardly rising pipe section. It extends in particular starting from the outlet opening of the washing upwards. He has advantageously further considered in the flow direction after the rising pipe section at least one downwardly sloping pipe section. Between the rising pipe section and the sloping pipe section is preferably provided at least one curvature section. Of the

Curved portion may in particular have a larger cross-sectional area than the rising pipe section and / or the sloping pipe section. In the interior of the curvature section, one or more flow guide ribs can advantageously be provided for equalizing the air flow. At least one of the flow guide ribs may possibly extend beyond the curved section into the rising pipe section and / or sloping pipe section. The one or more flow guide ribs are provided in particular in positions above the height position of the outlet of the washing compartment. The respective flow guide rib may be from the Spülbehältergehäuse- facing channel wall to the opposite, Spülbehältergehäuse- remote channel wall of the

Air ducts to a partial depth or partial cross-sectional width, preferably substantially continuously extend. In particular, at least one return rib in the interior of the sloping tube section on the sewer housing facing channel wall and / or Spülbehältergehäuse- remote channel wall of the air duct LK may be provided at a location which is higher than the inlet opening of the air duct. The return rib may be conveniently connected via a cross-connection line in the space between the descending pipe section and the sloping pipe section for condensate return to the inlet opening of the air duct. It preferably has a slope towards the inlet opening. The return rib may extend from the Spülbehältergehäuse- facing channel wall to the opposite, Spülbehältergehäuse- remote channel wall of the air duct, preferably only on a partial cross-sectional depth.

In the figure 3, the sloping branch AB of the air duct LK is shown inserted substantially perpendicular to the fan unit LT. The sucked-in air flow LS1 is blown from the fan unit LT on the output side via a tubular connection section VA into an inlet connection ES of the sorption container SB coupled to it in the area near the bottom thereof. In this case, the air flow LS1 flows into the lower region of the sorption container SB with an inflow direction ESR, in this case in particular substantially horizontal, and changes into a different, in particular essentially vertical, flow direction DSR, with which it flows through the interior of the sorption container SB. This in the Essentially vertical flow direction DSR runs from bottom to top through the sorption SB. In particular, the inlet nozzle ES directs the incoming air flow LS1 into the sorption container SB such that it is deflected from its inflow direction ESR, in particular by approximately 90 degrees, into the throughflow direction DSR of the sorption container SB.

According to FIG. 3, the sorption container SB below the bottom BO in the bottom assembly BG of the washing container SPB is arranged largely free-hanging such that it has a predetermined minimum gap distance LSP (see also FIG. 10) with respect to adjacent components and / or parts of the bottom assembly BG for heat protection. For the below the bottom BO of the floor assembly BG attached freely suspended sorbent SB below this at least one transport locking element TRS is provided in a predetermined free space distance FRA such that the sorbent SB is supported from below, if the sorbent SB during transport from its free-hanging position moved down together with the bottom BO.

Expressed in general terms, the housing of the sorption container SB has such a geometry that there is a sufficient gap distance as heat protection around the remaining parts or components of the base assembly BG. For example, the sorption container SB for this purpose on its the rear wall RW of the bottom assembly BG facing housing wall SW2 an inwardly curved indentation AF, which corresponds with its facing geometry of the rear wall RW of the washing compartment SPB.

The sorption container SB has advantageously at least in the landfill area of its sorption unit SE at least one outer housing AG in addition to its cup-shaped, closed with a lid member inner housing IG such that its overall housing GT is double-walled there. Between the inner housing IG and the outer housing AG thus an air gap clearance LS is present as a thermal insulation layer.

Characterized in that the sorbent SB is formed at least around the position range of its sorption, ie partially or completely, at least double-walled, is additionally or independently to its freely suspended storage or accommodation provided an insulation and / or heat radiation protection. In particular, this further overheating protection measure serves, on the one hand, to adequately protect any neighboring components and components of the floor assembly BG against excessively high overheating or burns. On the other hand, the multi-walledness of the sorption container SB has the function of avoiding thermal losses of the sorption unit to the environment as insulation, whereby the energy efficiency in the respective desorption process in which the sorption drying material is heated with the aid of at least one air heating device for liquid, in particular water drifting, compared to one uninsulated sorption can be increased. In addition, the sorption drying material volume of the sorption unit may be replaced by the

Mehrwandigkeit the sorbent SB evenly be heated without heat insulation for desorbing, which is material-friendly for the sorbent material. In addition, such a double or generalized multi-walled wall construction of the sorbent SB is less expensive and easier to manufacture than additional insulating mats. In the case of the present embodiment of Figure 3, the sorbent SB on its cover part DEL free projecting downwardly cut outer wall AG, the wall IG of the cup-like, with the cover part DEL top closed total housing GT in the sorption SE clad in the predetermined transverse gap LS distance. Alternatively or in addition to the folded outer wall AG, it may also be possible to provide an additional inner wall in the interior of the sorption container SB, in addition to its housing wall IG, at least in the region of the sorption unit SE.

Additionally or independently of the multi-wall construction of the sorption container SB, it may also be expedient to provide at least one heat-resistant insulating element at least in the positional area of the sorption unit around the outside of the housing of the sorbent container SB and / or on the inside wall of the sorbent container SB. These may be, for example, heat-insulating nonwovens, mats or the like.

The sorption container SB is attached to the underside of the bottom BO, in particular in the region of a passage opening DG (see FIGS. 3, 13) of the bottom BO of the washing container SPB. This is particularly the case in the schematic side view of FIG. 3 illustrated. There, the bottom BO of the washing container SPB has, starting from its outer edges ARA, a gradient tapering towards a liquid collecting region FSB. This liquid collecting area FSB is associated in particular with the location of the pump sump of the dishwasher. Preferably, this is provided approximately in the center region of the bottom BO. The sorption container SB is mounted on the bottom BO of the washing container SPB in such a way that its lid part DEL extends substantially parallel to the underside of the bottom BO and with a predetermined gap distance LSP to the latter. For free-hanging storage of the sorbent SB is a coupling connection between at least one bottom-side coupling component, in particular a base SO, the sorbent SB and a bottom-top coupling element, in particular the outlet element OFF, the sorbent SB in the region of a passage opening DG in the bottom BO of the purge SB provided. As a coupling connection in particular a clamping connection is provided. The clamping connection can be formed by a detachable connection, in particular screw connection, with or without bayonet closure BJ (see FIG. 13) between the bottom-side coupling component of the sorption container SB and the bottom-side coupling component of the sorbent container SB. An annular rim zone RZ (see FIG. 13) all around the passage opening DG of the bottom BO is located between the bottom underside coupling or outlet component, such as the upwardly projecting pedestal SO on the cover part DEL of the sorbent container SB, and the outlet element or valve above the bottom BO Splash protection component AUS clamped in assembled state of both coupling components. In FIG. 13, for the sake of simplicity of drawing, the bottom BO of the washing container SPB and the bottom-side coupling or connecting component SO are indicated only by dash-dotted lines. The bottom-side connection component SO and / or the floor-top splash protection component AUS projects in each case with its end-side end portion through the

Through opening DG of the bottom BO. The bottom-side outlet part has the base SO around the outlet opening AO of the cover part DEL of the sorbent SB. The floor-top splash protection component AUS has a discharge connection AKT and a splash protection cover SH. At least one sealing element DU is provided between the floor-top-side component AUS and the bottom-floor-side component SO.

In summary, the sorption SB therefore below the bottom BO of the washing compartment SPB largely free-hanging arranged such that it is opposite adjacent components and parts of the floor assembly BG for heat protection has a predetermined minimum gap distance LSP. Below the sorption container SB, a transport securing element TRS is additionally fixed in a predetermined free space distance FRA at the bottom of the floor assembly. This transport safety element TRS serves to optionally support the sorption container SB, which is suspended below the bottom BO of the washing container SPB, from below, if, for example, it swings down during transport together with the bottom BO due to vibrations. This transport securing element TRS can be formed, in particular, by a downwardly U-shaped metal clamp, which is fixedly mounted on the bottom of the floor assembly. The sorption SB has at the top of its cover part DEL the

Outflow opening AO on. Around the outer edge of this outflow opening AO an upwardly projecting socket SO is attached. In the approximately circular opening of this base SO, a cylindrical base nozzle element STE is mounted (see Figures 4, 5, 9, 13), which projects upwards and serves as a counterpart to the outflow or AKTK. It preferably has an external thread with integrated bayonet lock BJ, which interacts with the internal thread of the Ausblaskaminstutzens AKT accordingly. The base SO has the sealing ring DU on its upper side, concentrically running around the base nozzle STE. This is illustrated in FIGS. 3, 4, 9, 13. The sorbent SB is pressed with this seal DU on the bottom of the bottom BO pressed firmly. It is held by the height of the base SO on clearance LSP from the bottom of the bottom BO. From the top of the bottom BO ago is pushed through the insertion opening DG of the bottom BO of the blow-out nozzle AKT down and bolted to the counter-piece base socket STE and the opening secured by the bayonet lock BJ. In this case, the blow-out outlet section AKT lies circumferentially around the outer edge zone RZ of the bottom BO, around the passage opening DG with its annular outer edge APR firmly resting against it. For the outer edge zone RZ of the bottom BO around the passage opening DG is clamped liquid-tightly between a ring surrounding, lower support edge APR of the Ablaßkaminstutzens AKT and the upper support edge of the base AO by means of there arranged sealing ring DU. Since the sealing ring presses DU from the bottom to the bottom BO, he is against any adverse effects or damage caused by cleaning agent in the rinsing liquid secured against aging. In this way, a liquid-tight through-connection between the Ausblaskaminstutzen AKT and the base SO is formed. This acts advantageously at the same time as a suspension device for the sorbent SB.

The fact that the base SO projects upwards by a base height LSP from the remaining surface of the cover part DEL ensures that there is a gap between the cover part DEL and the underside of the bottom BO. The bottom BO of the washing container SPB runs in the case of the present embodiment of Figure 3, starting from its peripheral edge zone with the side walls SW and the rear wall RW toward a preferably central liquid collecting area FSB inclined with inclined. Below this, the pump sump PSU of a circulation pump UWP can be located (see FIG. 16). In FIG. 3, this bottom BO, which tapers obliquely from outside to inside onto the lower collecting area FSB, is shown by dash-dotted lines. The arrangement of the pump sump PSU with the recirculation pump UWP seated therein below the lower collection area FSB can be seen from the plan view image of the floor assembly BG of FIG. The sorption container SB is preferably mounted on the bottom BO of the washing container SPB such that its lid part DEL extends substantially parallel to the underside of the bottom BO and with a predetermined gap distance LSP thereto. For this purpose, the base SO is at the darinsitzenden base stub STE opposite the

Surface standards of the cover part DEL with a corresponding inclination angle inclined.

According to FIGS. 4 to 10, the sorption container SB has a cup-shaped housing part GT, which is closed by a cover part DEL. In the cup-shaped housing part GT at least the sorption unit SE is provided with reversibly dehydratable sorption drying material ZEO. The sorption unit SE is accommodated in the pot-shaped housing part GT in such a way that its sorption drying material ZEO can be flowed through an air flow LS2 substantially in or counter to the direction of gravity SKR (see FIG. 3)

Air duct LK induced air flow LS1 is generated. The sorption unit SE has at least one lower sieve element or grid element US as the lower, essentially horizontally arranged, air-permeable bottom element and at least an upper screen element or grid element OS as an upper, substantially horizontally arranged, air-permeable ceiling element in a predetermined height distance H from each other (see in particular Figure 9). The volume of space between the two sieve elements or grid elements US, OS is largely completely filled with the sorption drying material ZEO. In cup-shaped housing part GT at least one heating device HZ is provided. It is viewed in the flow direction DSR of the sorption container SB, in particular before the sorption unit SE with the reversibly dehydratable sorption drying material ZEO. The heating device HZ is positioned in a lower cavity UH of the cup-shaped housing part GT between its bottom part BOT and the sorption unit SE for collecting inflowing air LS1 from the air duct LK. In the area of

Bodenteils BOT the inlet opening EO is provided for the air duct LK. In the cover part DEL the outlet opening AO is provided for the outlet element OFF. For the cover part DEL and the cup-shaped housing part GT, ie in general terms for all parts of the overall housing of the sorption container, preferably a heat-resistant material, in particular metal sheet, preferably stainless steel or a stainless steel alloy is used. The cover part DEL closes the pot-shaped housing part GT largely hermetically. The peripheral outer edge of the cover part DEL is connected to the upper edge of the cup-shaped housing part GT only by a mechanical connection, in particular by a forming, joining, latching, clamping, in particular by a beaded, or clinch connection, which is manufacturing technology easy and ensures a permanently heat-resistant and tight connection. The pot-shaped housing part GT has one or more side walls SW1, SW2 (see FIG. 5), which run substantially vertically. It has an outer contour shape, which essentially corresponds to the inner contour shape of a mounting area EBR provided for it, in particular in the floor assembly BG (see FIG. 16). The two adjoining side walls SW1, SW2 have outer surfaces that are substantially perpendicular to each other. At least one side wall, such as SW2, has at least one shape, such as the indentation AF (see FIG. 3), which is formed essentially complementary to a shape on the rear wall and / or side wall of the bottom assembly BG. The sorbent tank SB is provided in a rear corner area EBR between the rear wall RW and an adjacent side wall SW of the dishwasher GS in an exposed area of the floor assembly BG below the floor BO. The pot-shaped housing part GT has at least one passage opening for at least one electrical contact element, in particular two through-openings DUF for two electrical contact elements, preferably connection poles, AP1, AP2 (see FIGS. 4, 5). In a roofing area above the passage opening DUF is at least over the extent of a

Drip protection plate TSB attached for additional safety. The drip protection plate TSB has a drainage slope. Through this drip plate is largely avoided that moisture or liquid from the interior of the washing container, for. by a possibly remaining in case of error edge gap between the inner edge of the passage opening DG and the base SO and / or connecting piece AKT of

Coupling components SO, OFF despite sealing element DU or in any other way such. may come into contact with the electrical contact elements by a leak in the bottom BO or in a line of the liquid circulation system with the circulation pump UWP. This cover is therefore for electrical safety.

FIG. 4 shows, on the basis of a schematic and perspective exploded view, the various components of the sorption container SB in the disassembled state. The components of the sorption container SB are arranged one above the other in several vertical planes as viewed in the vertical direction. This design structure of the sorption container SB, which is stratified from bottom to top in the vertical direction, is illustrated in particular in the sectional view of FIG. 9 and in the cutaway perspective view of FIG. The sorption SB has the bottom, lower cavity UH, for collecting incoming air from the approximately horizontally incoming inlet nozzle ES. Above this lower cavity UH sits a slotted sheet SK, which serves as a flow conditioning agent for a pipe coil heater HZ arranged above it. The slotted sheet SK sits on an all around in the interior of the sorbent SB circumferential support edge. This support edge has over the inner bottom of the sorbent SB a predetermined height distance to form the lower cavity UH. The slotted sheet SK preferably has one or more clamping parts in order to jam it laterally or laterally with a part surface of at least one inner wall of the sorption container SB. As a result, a reliable position assurance for the slotted sheet SK can be provided. Corresponding to the bottom view of the slot plate of Figure 6 has these slits SL, which essentially follow the winding course of the arranged above the slotted sheet SK tube coil heater. The slots or passages SL of the slotted sheet SK are larger, in particular, at those locations at which the air flow which is diverted into the sorption container SB with a substantially horizontally entering air flow LS1 into the substantially vertical throughflow direction DSR of the sorption container SB has a lower velocity wider or wider than at those locations where it has a greater velocity in the flow direction DSR of the sorbent tank SB. As a result, a substantial homogenization of the local flow cross-sectional profile of the air flow LS2 is achieved, which flows through the sorption container SB from bottom to top, in particular substantially in the vertical throughflow direction DSR. Equalization of the local flow cross-sectional profile of the air flow is understood here to mean that essentially the same volume of air passes at approximately the same flow rate at each entry point of a flow area of the sorption unit.

The coil heater RZ is arranged with a predetermined height clearance in the direction of flow DSR behind the slotted sheet SK. For this purpose, it can be held at a height distance above the passages SL by means of a plurality of sheet metal parts BT, which are web-like. These sheet metal parts BT (see FIG. 6) preferably support the tubular coil heater RZ in their course alternately once from below and once from above. As a result, on the one hand a reliable Lanksichersicherung the pipe coil heater HZ on the slotted sheet SK allows. On the other hand, distortions of the slot plate SK, which could occur under the heat of the coil heater HZ, largely avoided. Viewed in the direction of flow DSR, the coil heater HZ follows a free space ZR (see FIGS. 9, 10) until the air flow LS2, which flows substantially from bottom to top, in particular substantially vertically, enters the inlet cross-sectional area SDF of the sorption unit SE. This sorption unit SE has on the input side the lower screen element or grid element US. At a height distance H of this screen element or grid element US, the output side, upper screen element or grid element OS is provided. For the two sieve elements US, OS, are on the inner walls of the sorption container sections or provided all around support edges to position the screen elements US, OS in their associated altitude and keep. The two screen elements US, OS are preferably arranged parallel to each other in this predetermined height distance H. Between the lower sieve element US and the upper sieve element OS, the sorption drying material ZEO is filled in such a way that the volume between the two sieve elements US, OS is largely completely filled. In the installed state of the sorbent SB, the input-side screen element US and the output side screen element OS relative to the vertical center axis of the sorbent SB or based on the flow direction DSR in substantially horizontal planes of position above one another with the predetermined height distance H from each other. In other words, in this embodiment, the sorption unit SE is formed by a filling volume of sorption drying material ZEO between a lower, substantially horizontally arranged sieve element US and an upper, substantially horizontally arranged sieve element OS, wherein these are separated by the height direction, in particular the direction of flow DSR, the sorption container SB extending side walls are connected to each other as the outer shell of the sorption and are enclosed by these around. The sorption SE is thus formed sleeve-shaped or tubular. In this case, the sorption drying material ZEO is mounted on the lower sieve element US and is held in position by it as well as the outer walls or the inner housing IG of the sorption container. In

Viewed through the flow direction DSR, the upper cavity OH is provided above the sorption unit SE for collecting outflowing air. This outflowing air LS2 is led through the outlet AO of the base nozzle STE into the blow-off nozzle ATK, from where it is blown out into the interior of the washing container SPB.

In summary, the sorption drying material ZEO fills a bulk volume between the lower, approximately horizontally arranged sieve element US and the upper, approximately horizontally arranged sieve element OS such that the flow inlet cross-sectional area SDF and a flow exit cross-sectional area SAF are substantially perpendicular to the

Flow direction DSR, which extends substantially in the vertical direction. The lower sieve element US, the upper sieve element OS and the sorption drying material ZEO interposed therebetween have mutually congruent ones Penetration surfaces for the air flowing LS2 on. This largely ensures that at any point in the volume of the sorption unit SE whose sorption drying material can be subjected to approximately the same volume flow. As a result, in the desorption overheating points and thus any overuse or other damage to the sorption drying ZEO are largely avoided. This ensures in particular that premature aging of the sorption drying material over the entire product life of the domestic dishwasher GS is largely avoided. The sorption drying material may be provided again after each desorption with approximately the same material properties as in the original starting state for the next sorption drying operation of a subsequent dishwashing program. In the sorption thus a uniform moisture absorption from the moist air to be dried and thus an optimal utilization of the sorption provided in the sorption unit SE sorption drying material ZEO is possible.

Through the slotted sheet SK is a flow conditioning or

Flow influencing the rising from bottom to top in the direction of flow DSR flow LS2 made such that the coil heater is flowed substantially at each point of its longitudinal course substantially with the same air flow. The combination of slotted sheet and tube coil heater HZ arranged above ensures to a large extent that the air flow LS2 in front of the entry surface of the lower screen US of the sorption unit SE can be heated substantially evenly during the desorption process. In this case, the slotted sheet ensures a largely uniform local distribution of the heated air volume flow over the inlet cross-sectional area SDF of the sorption unit SE.

In addition or independently of the slotted sheet SK, it may also be expedient to provide a heating device outside the sorption container SB in the connection section between the fan unit LT and the inlet opening EO of the sorbent container SB in the air duct LK. Because the

Passage cross-sectional area of this tubular connecting portion VA is smaller than the average cross-sectional area of the sorbing container SB for an air flow, the air flow LS1, before it enters the sorption SB, already in advance be heated substantially uniformly for the desorption process. Then, if necessary, the slotted sheet SK completely eliminated.

In particular, if the heating of the air takes place by means of a heating device in the sorption SB, it may also be appropriate, viewed in the flow direction DSR of the sorbent SB both before and after the heating device HZ at least one

Provide flow conditioning element such that the volume amount of sorption drying material ZEO behind the inlet cross-sectional area SDF of the lower wire element US at each point about the same air flow rate can be flowed through. As a result, on the one hand, in the sorption process during which the heating device HZ is deactivated, that is to say switched off, it is largely achieved that all the sorption drying material is largely completely involved in the dehumidification of the air flowing through LS1. In an analogous manner, on the other hand in the desorption process, in which the air flowing through LS2 is heated by the heater HZ, brought out of all sorption drying material in the space between the two screen elements US, OS stored water again, so that at all points within this volume volume the Sorption drying material ZEO substantially completely dried and thus regenerated can be made available for a subsequent drying process.

The flow cross-sectional area SDF of the sorption unit SE in the interior of the sorption container SB is larger in the case of the present embodiment than the average cross-sectional area of the end inlet nozzle ES of the air duct LK and the tubular connecting portion VA. The flow cross-sectional area SDF of the sorption drying material is preferably between 2 and 40 times, in particular between 4 and 30 times, preferably between 5 and 25 times, larger than the average cross-sectional area of the inlet connection ES of the air duct LK, with which this opens into the inlet opening EO of the sorbent SB. To summarize, it may therefore be particularly expedient to include one or more flow conditioning elements SK in the sorption tank SB and / or in a pipe section VA, ES of the air duct LK facing the sorption tank SB, in particular after at least one fan unit LT inserted in the air duct LK or provide a plurality of air passages SL that a homogenization of the local flow cross-sectional profile of the air flow LS2 is effected when flowing through the sorbent SB in its bottom-up, in particular substantially vertical, flow direction DSR. Viewed in the throughflow direction DSR of the sorption container SB, at least one flow conditioning element SK with a vertical distance in front of the heating device HZ is provided in its lower cavity UH. As Strömungskonditionierungselement SK a slotted sheet or perforated plate is provided here in the embodiment. The slots SL in the slotted sheet SK essentially follow the winding course of a coil heater HZ, which is positioned with free space above the slits SL in the slotted sheet as a heating device. The slotted plate is arranged substantially parallel to and at a free space distance from the air inlet cross-sectional area SDF of the sorption unit SE of the sorption container SE. Air passages, in particular slits SL, in the flow conditioning element SK are formed at those locations where the airflow LS1 entering the sorbent tank SB has a lower velocity after being deflected in the flow direction DSR of the sorbent tank SB, preferably greater than at those locations where the air flow LS1 The air flow LS1 entering the sorption container SB has a greater velocity after being deflected in the direction of flow DSR of the sorption container SB in order to achieve an equalization of the air flow with which the tube heater HZ flows.

In general terms, the sorption drying system has the following specific flow conditions in the region of the sorption container SB: The air guide channel is coupled to the sorption container SB in such a way that the incoming air flow into the sorption container opens with a, in particular substantially horizontal, inflow direction and into one of them, here in particular substantially vertical, passes through the flow direction, with which it flows through the interior of the sorbent SB. The exit flow direction of Air flow emerging from the sorption container preferably corresponds essentially to the approximately vertical throughflow direction. The inlet-side pipe section of the air duct opens into the sorption such that its direction of flow in the forced flow direction of the sorbent SB, in particular between 45 ° and 135 °, preferably about 90 °, is deflected from its, here approximately horizontal, inflow direction. In

Viewed in the direction of flow, at least one fan unit is inserted into the inlet-side pipe section of the air-guiding channel in order to produce a forced air flow in the direction of at least one inlet opening of the sorption container SB in front of the sorption container SB.

The sorption container SB is designed with such a geometry that its sorption unit with the sorption drying material is forced through air substantially in or counter to the direction of gravity, which is guided via the air duct from the rinsing tank SPB into the sorption tank SB. The sorption unit of the sorption container SB can preferably have at least one lower, essentially horizontally arranged sieve element or grid element and at least one upper, substantially horizontally arranged sieve element or grid element at a predeterminable height distance from one another, wherein the volume of space between the two sieve elements or grid elements largely coincides with the sorption drying material is completely filled out. The inlet cross-sectional area and the

Outlet cross-sectional area of the sorption of the sorbent container SB can be selected in particular substantially equal. The inlet cross-sectional area and the outlet cross-sectional area of the sorption unit of the sorption container SB can also be arranged substantially congruent to one another. Viewed in its forced flow direction, the sorption container SB advantageously has at least one essentially vertical layer of a lower cavity and a sorption unit arranged above it and arranged downstream in the flow direction. It preferably has at least one heating device in its lower cavity. The sorption container SB can expediently also have at least one upper cavity for collecting outflowing air via its sorption unit. In the sorption unit of the sorption container SB, the sorption drying material expediently fills a bulk volume in such a way that it is arranged substantially perpendicular to the throughflow direction Flow inlet cross-sectional area and a largely parallel arranged flow outlet cross-sectional area, ie in each case in a substantially horizontal position plane, is formed. The sorption container SB preferably has at least one outflow opening, which is connected via a passage opening in the bottom of the rinsing container SPB to its interior, with the aid of at least one outflow component.

The sorption container SB can also be designed, in particular, as a tube arranged substantially vertically, in particular as a cylinder arranged substantially vertically, or as an upended sleeve. In this way, an upright sorption column can be provided, in particular with a heating device and a downstream sorption unit, for the sorption drying material of which a through-flow direction against the direction of gravity with air is predetermined. As a result, a relatively compact design variant for the sorption container is advantageously possible, which requires only relatively little space.

The sorption drying material is stored in the sorption container SB in an advantageous manner in the form of the sorption unit in such a way that substantially every entry point of the passage cross-sectional area of the sorption unit can be acted upon by a substantially identical air volume flow value. As sorption drying material is preferably an aluminum and / or silica-containing, reversibly dehydratable material, silica gel, and / or zeolite, in particular zeolite type A, X, Y alone or in any combination provided. The sorption drying material is suitably in the sorption container SB in the form of a granular solid or granules with a plurality of particle bodies with a grain size in

Substantially between 1 and 6 mm, in particular between 2.4 and 4.8 mm, provided as a bed, wherein the bed height H of the particle body at least five times their grain size corresponds. The sorption drying material present as a granular solid or granulate expediently exists in the direction of gravity in the sorption container with a bulk height H which corresponds essentially to 5- to 40-fold, in particular 10-to 15-fold, the particle size of the granular solid or granules. The bed height of the sorption drying material is preferably substantially between 1, 5 and 25 cm, in particular between 2 and 8 cm, preferably between 4 and 6 cm, chosen. The granular solid or granules may preferably be formed from a plurality of substantially spherical particle bodies. Advantageously, the sorption drying material ZEO, which is in the form of a granular solid or granulate, advantageously has an average bulk density of at least 500 kg / m ³ , in particular substantially between 500 and 800 kg / m ³ , in particular between 600 and 700 kg / m ³ , in particular between 630 to 650 kg / m ³ , particularly preferably from about 640 kg / m ³ , on.

In the sorption SB the reversibly dehydratable sorption drying material for absorbing a transported in the air flow amount of moisture is advantageously provided with such an amount by weight that absorbed by the Sorptionstrocknungsmaterial amount of moisture is less than a liquid applied to the washware, especially an amount of liquid applied in the final rinse step.

In particular, it may be expedient if the reversibly dehydratable sorption drying material with such a weight amount is provided in the sorption container SB that it is sufficient to absorb a moisture amount which substantially corresponds to a wetting amount with which the ware is wetted after the end of a final rinse step. The amount of absorbed water preferably corresponds to between 4 and 25%, in particular between 5 and 15%, of the amount of liquid applied to the items to be washed.

Appropriately, in the sorption SB a weight amount substantially between 0.2 and 5 kg, in particular between 0.3 and 3 kg, preferably between 0.5 and 2.5 kg, housed on sorption drying material ZEO.

In particular, the sorption drying material has pores having a size substantially between 1 and 12 angstroms, in particular between 2 and 10, preferably between 3 and 8 angstroms.

It has expediently a water absorption capacity substantially between 15 and 40, preferably between 20 and 30 weight percent of its dry weight. In particular, a Sorptionstrocknungsmaterial is provided, which in a

Temperature substantially in the range between 80 ° and 450 ⁰ C, in particular between 220 ° and 250 ⁰ C, is desorbable.

The air duct, the sorption SB, and / or one or more additional flow influencing elements are expediently designed such that through the sorption drying material for its sorption and / or desorption an air flow with a volume flow substantially between 2 and 15 l / sec, in particular between 4 and 7 l / sec is effected.

It may be expedient, in particular, if the sorption drying material is assigned at least one heating device with which an equivalent heating power between 250 and 2500 W, in particular between 1000 and 1800 W, preferably between 1200 and 1500 W, can be provided for heating the sorption drying material for its desorption.

Preferably, the ratio of heating power of at least one heating device, which is assigned to the Sorptionstrocknungsmaterial for its desorption, and air flow rate of the air flow flowing through the Sorptionstrocknungsmaterial, between 100 and 1250 W sec / l, in particular between 100 and 450 W sec / l, preferably between 200 and 230 W sec / l, selected.

In the sorption container SB, a passage cross-sectional area is preferably provided for the sorption drying material substantially between 80 and 800 cm ² , in particular between 150 and 500 cm ² .

The dumping height of the sorption drying material is expediently substantially constant over the inlet cross-sectional area SDF of the sorption container SB.

In particular, it is expedient to form the sorption drying material for absorbing an amount of water essentially between 150 and 400 ml, in particular between 200 and 300 ml, in the sorption container SB. Furthermore, at least one thermal overheating protection device is provided for at least one component of the sorption drying system TS. The component may preferably be formed by a component of the sorption container SB. In this case, the thermal overheating protection device can be mounted on the outside of the sorption container SB. As a thermal overheating protection device is here in the embodiment (see Figures 4, 6, 8, 9) at least one electrical

Temperature protection unit TSI provided. It is assigned here in the embodiment of the heating device HZ, which is housed in the sorption SB.

The electrical temperature protection unit TSI is in the embodiment of Figures 4, 6, 8 and 9 in an outside indentation EBU on the inner housing of the IG

Sorption container SB provided in the high-altitude area of the heater HZ. It comprises at least one electrical thermal switch TSA and / or at least one fuse SSI (see FIG. 17). The electrical thermal switch TSA and / or the fuse SSI of the electrical temperature protection unit TSI are each, preferably in series, inserted into at least one power supply line UB1, UB2 of the heating device HZ (see Figure 8).

Furthermore, it may be expedient to provide at least one control device HE, ZE (see FIG. 16) with a monitoring logic which in particular interrupts the energy supply to the heating device HZ in the event of a fault. An error case is, for example, due to the exceeding of an upper temperature limit, e.g. formed on the sorbent SB or in the washing.

As a thermal overheating protection measure can also serve the largely free hanging suspension or a corresponding free installation of the sorbent SB, in particular below the bottom BO of the washing SPB serve.

The thermal overheating protection measure may further comprise a mounting of the sorption container SB such that the sorption container SB has a predetermined minimum gap distance LSP with respect to adjacent components and / or parts of a base assembly BG. As a thermal overheating protection device, at least one outer housing AG may be provided in addition to the inner housing IG of the sorption container SB, in addition to or independently of the above measures, at least in the region of the sorption unit SE of the sorption container SB. Between the inner housing IG and the outer housing AG while an air gap clearance LS is present as a thermal insulation layer. Generally speaking, therefore, the housing of the sorption container SB at least around the area of the sorption with the Sorptionstrocknungsmaterial around the outside and / or inside multi-walled, in particular double-walled. In addition or independently thereof, the sorption unit may be surrounded in the interior of the sorption container SB and / or on the outside of the sorption container SB at least in the region of the sorption unit with at least one additional heat insulation element.

The heating device, here in particular the coil heater HZ of FIGS. 4, 7, 8, 9, has two connection poles AP1, AP2, which are guided through corresponding passages in the housing of the washing container SB to the outside. Each terminal pin AP1, AP2 is preferably connected in series with an overheat protection element. The overheat protection elements are combined in the temperature fuse unit TSI, which is arranged on the outside of the housing of the sorption container SB in the vicinity of the two pole pins AP1, AP2. FIG. 17 shows the overheating protection circuit for the coil heater HZ of FIG. 8. The first bypass cable UB1 is attached to the first, rigid pole pin AP1 by means of a welded connection SWE1. In a corresponding manner, the second bridging line UB2 is fastened to the second, rigid pole pin AP2 by means of a welded joint SWE2. By means of a plug connection SV4, the bridging line UB2 is electrically contacted with the thermal switch TSA. The

Bridging line UB1 is electrically connected to the thermoelectric fuse SSI via a plug contact SV3. On the input side, a first power supply line SZL1 is connected to the outgoing terminal lug AF1 of the fuse element SSI via a plug connection SV1. In a corresponding manner, a second power supply line SZL2 is connected via a plug connection SV2 to the outgoing connection lug AF2 of the thermal switch element TSA. In particular, the second power supply line SZL2 forms a neutral conductor, while the first power supply line SZL1 can be a "live phase" Thermal switch TSA opens as soon as a first upper limit for the temperature of the coil heater HZ is exceeded. As soon as this falls below again, it closes again, so that the coil heater HZ is heated again. However, if a critical upper temperature limit, which is above the first upper limit, reached for the coil heater HZ, the fuse SSI melts through and the circuit for the coil heater HZ is permanently interrupted. The two temperature fuse elements of the temperature protection device TSI are in largely intimate, heat-conducting contact with the inner housing IG of the sorption. They can be triggered separately from each other when certain specific upper temperature limits are exceeded.

According to FIGS. 10, 13, 14, the outflow branch AKT, which is connected to the outlet opening AO in the base SO of the sorbent tank SB, passes through the passage opening DG of the bottom BO, preferably in a corner region EBR of the flushing tank SPB which passes outside of the spray arm SA Rotation surface is located. This is illustrated in FIG. In general terms, therefore, the outlet nozzle AKT of the outlet device AUS protrudes from the bottom BO to a position in the interior of the washing container SPB, which lies outside the area of rotation detected by the lower spray arm SA. The exhaust gas nozzle or the outlet connection AKT is covered or slipped over along its upper end section by a splash guard SH. The splash guard SH slips over the outflow nozzle AKT umbrella-like or mushroom-like. This is viewed from above (see Figure 12) on the top and side wall side completely closed; In particular, it is also completely closed on its underside in a region facing the spray arm SA. The outlet device or the outlet element AUS is constructed in such a way that it is possible to blow out as much air as possible from the sorption container SB into the interior of the rinsing container via its blow-off nozzle piece AKT and at the same time through its splash guard SH to cover the air blow-through to provide such that penetration of wash liquor from the washing container into the interior of the sorbent SB is largely avoided. The splash guard SH has here in the embodiment in the first approximation to a semi-circular cylindrical geometry shape. It is shown schematically in the figure 12 viewed from above. At its upper side, it points in transition zones GF, URA between its largely plane-like upper side and its substantially vertically downwardly projecting side walls (viewed from the inside outwards) convexly curved flattened areas GF (see FIG. 13). If a spray jet, for example from the lower spray arm SA, meets these edge zones flattened or arched transition zones GF, URA, then this film pours largely over the entire area over the splash guard SH and cools it during the desorption process. As a result, undesirable material stresses or material damage to components in the interior of the washing due to overheating are largely avoided.

The splash guard SH is arranged with respect to the outlet connection AKT with a free height distance to form a free space or cavity. To avoid liquid when spraying with the lower spray arm SA through the

Outlet opening of the outflow AKT can get into the sorbent SB, a lower edge zone UR of the semicircular cylinder-section-like side wall of the splash guard SH is curved toward the inside in the direction of the outflow AKT or arched or bent or bent. This can be seen in FIG. In addition, in the region of the upper edge of the outflow nozzle AKT, a spray-water deflecting element or shielding element PB, in particular a baffle plate, which revolves radially outward, is provided on this surface. This is radially outward into the gap or gap between the circular cylindrical outflow AKT and the inner wall of the splash guard SH from. It remains between the outer edge of this shielding PB and the inner wall of the splash guard SH a free passage opening for the air flow LS2, which flows out of the outflow AKT towards the ceiling of the splash guard SH, while down to the lower edge UR of the splash guard SH, in particular by about 180 °, is diverted or redirected. The deflection path is designated by ALS in FIG. The outwardly projecting shielding element PB is supported in the exemplary embodiment of FIG. 13 at individual circumferential points of its outer edge by means of web elements SET with respect to the inner wall of the outer wall of the splash guard SH which revolves in the form of a sleeve or ring segment section.

Figure 14 shows the splash guard SH viewed from below together with the outflow AKT. In this case, the shielding element PB shields the outlet opening of the outflow branch AKT as a laterally or laterally projecting edge or web substantially all around. In particular, the shielding element PB closes the underside the splash guard SH in the region of the rectilinear, the spray arm SA facing side wall. Only in the semicircular curved, the spray arm facing away portion of the splash guard SH between the shield and the radially offset radially outwardly concentrically arranged side wall of the splash guard SH a gap clearance LAO is released through which the air from the outflow AKT flow into the interior of the sump SPB can. Here in

Embodiment of Figure 14, the gap clearance LAO is formed substantially sickle-like. The air flow LS2 is thereby forced to the deflection ALS, which deflects it from its vertical upward discharge direction down to the lower edge UR of the splash guard AH out, where they can emerge only through the crescent-shaped, partial circular section-shaped gap clearance LAO in the lower part of the splash guard SH , The outflow AKT is expediently with such a height HO relative to the bottom BO from that its upper edge is higher than the level of a scheduled for a rinsing cycle target Spülbad- total amount or foam amount.

The outflow element AUS, which is mounted on the output side of the sorption container SB and projects into the interior of the rinse container SPB, is thus expediently designed such that the air flow LS2 emerging from it is directed away from the spray arm SA. Specifically, the outflowing airflow LS2 becomes a rearward corner area between the rear wall RW and the adjacent one

Side wall SW of the washing container steered. In this way it is largely avoided that spray water or foam during cleaning or other flushing through the opening of the Ausströmstutzens can get into the interior of the sorption. Otherwise, the desorption process could be impaired or completely destroyed. In addition, flushing fluid could permanently damage the sorption drying material. Because extensive tests have shown that the functionality of the Sorptionstrocknungsmaterials in the sorption over the life of the dishwasher can be largely preserved or preserved if it is reliably prevented that water, detergent, and / or rinse aid from the

Rinsing container penetrates into the sorption SB with the Sorptionstrocknungsmaterial. In summary, at least one outflow device AUS, which is connected to at least one outflow opening AO of the sorbent container SB, arranged in the interior of the washing container SPB that air blown out of her LS2 is largely directed away from at least one accommodated in the washing container SPB spraying SA. The outflow device AUS is arranged outside the working range of the spray device SA. The spraying device may, for example, be a rotating spray arm SA. The outflow device AUS is preferably provided in a rear corner region EBR between the rear wall RW and an adjacent side wall SW of the washing container SPB. In particular, the outflow device AUS has a blow-out opening ABO with a height clearance HO above the bottom BO of the rinse container SPB, which is higher than the level of a set rinse bath total amount provided for a rinse operation. The outflow device AUS comprises a discharge connection AKT and a splash protection cover SH. The splash guard SH has a geometry which has the blow-out opening ABO of the outflow nozzle AKT. The splash guard SH is slipped over the outflow AKT such that a downwardly flowing forced flow path ALS can be impressed by the outflow port AKT from the sorption SB with an ascending flow direction high air after its exit from the exhaust port ABO of the outflow. The above the bottom BO of the washing container SPB upwardly projecting outflow AKT is coupled to the connection piece STE on the cover part DEL of the arranged under the bottom BO sorption SB. The splash guard SH is designed to be closed on its upper side and underside in its housing area GF facing the spraying device SA. The splash guard SH covers the blow-off opening ABO of the outlet connection AKT with an upper free space. The outflow branch AKT has an upper, outwardly curved edge or circumferential collar KR. The splash guard SH envelopes an upper end portion of the outflow AKT such that between its inner wall and the outer wall of the outflow AKT a clearance SPF is formed. The gap SPF between the splash guard SH and the outflow AKT is designed such that an Luftausströmweg ALS is provided from the outflow AKT, of the

Sprayer SA is directed away in the washing container SB. At the outflow AKT a projecting into the gap SPF SPITZ Spritzwasserabweiselement is provided. A lower edge zone UR of the splash guard SH is curved inwards. The splash guard SH has such a rounded outer surface, that it can pour an incident spray of the spray SA to film over its surface. This serves to cool the outlet device OFF.

If appropriate, it may also be expedient to provide a plurality of such outlet devices of the sorption drying system in the rinsing container SB.

FIG. 15 shows a schematic longitudinal sectional illustration of the fixing of the inlet-side, end-side end section ET of the air duct LK in the region of the outlet opening ALA in the side wall SW of the washing compartment SPB of FIG. 2. The front end section ET of the air duct LK projects into the interior of the

Rinse container SPB into it so that an all-round, against the side wall SW perpendicular projecting collar edge is formed. This has an internal thread SG. In this internal thread SG, an annular inlet element or fixing element IM is screwed with an external thread. It thus acts as a fixing element for holding the end portion ET. This annular fixing element has a toroidal, round receiving chamber for a sealing element DI2. This sealing element DI2 seals an annular gap between the outer edge of the inlet-side, end-side end section ET of the air duct LK and the fixing element. The fixing element is formed here in the exemplary embodiment in particular by a union nut-like screw ring, which is bolted to the inlet side, front end portion ET of the air duct LK. In the exemplary embodiment, the annular fixing element or inlet element IM a central passage MD, can be sucked through the air LU from the interior of the washing container SPB in the air duct.

Optionally, it may also be expedient to provide at least one rib-shaped engagement protection in / or in front of the inlet opening MD of the inlet-side tube section ET of the air-guiding channel LK, which has freely continuous gaps between its engagement ribs RIP for the inflow of air LU from the rinsing container. In the figure 15, these ribs RIP are indicated by dash-dotted lines. These ribs can also serve as a screwing aid for screwing in the air inlet element IM in the internal thread of the end portion of the air duct. In general terms, it may also be appropriate to provide a sorption drying system that has multiple sorption units or sorption columns with associated heating devices in a common sorbent tank SB or in a plurality of separate sorbent tanks SB. These sorption columns or their sorption containers SB can be connected in series as well as coupled to one another as parallel strands of the sorption drying system. These multiple serially or in parallel arranged sorption columns may conveniently be connected via one or more air ducts to one or more outlet openings of the washing container for drawing in air from the washing container and / or with blowing outlets of one or more outlet devices for blowing air into the washing container.

FIG. 16 shows a schematic top view of the floor assembly BG. In addition to the fan unit LT, the sorption tank SB, the circulation pump UWP, etc., it comprises a main control unit HE for controlling and checking it. The heating device HZ of the sorbent SB is for the respective

Desorptionsvorgang regulated by at least one control device. This is formed here in the embodiment by an additional control device ZE. It serves to interrupt or connect the power supply line SZL to the heating device HZ as required. The additional control device ZE is controlled by the main control unit HE via a bus line BUL. From the main controller HE, a power supply line SVL is guided to the additional control device ZE. It also controls the fan unit LT via a control line SLL. In particular, the power supply line of the fan unit LT can also be integrated in the control line SLL.

At least one temperature sensor TSE (see FIG. 2) is connected to the main control device HE via a signal line and supplies measuring signals to the main control device HE, which represent the temperature in the interior of the washing container SPB. The temperature sensor TSE is suspended between stiffening ribs VR (see FIG. 3) in the intermediate space between the two legs AU, AB of the inlet-side pipe section RA1 of the air duct LK. In this case, it is brought into contact with the side wall SW of the washing container SPB. As soon as a cleaning process is started, the

Main controller HE via the bus line BUL the additional control device ZE such that an electrical voltage across the power connection line SZL is applied to the pole pins AP1, AP2 of the heating device HZ, if a desorption process is desired. As soon as a certain predetermined critical upper temperature limit has been reached in the interior of the washing container SPB during the desorption process, which causes the main controller HE, e.g. can determine via the measurement signals of the temperature sensor TSE, they can give the additional control device ZE via the bus line BUL the voltage to take on the power supply line SZL and thereby the heating device HZ and possibly simultaneously or by a predetermined period of time offset and the fan unit LT, ie the complete

Sorption drying device TV, off. In this way, the desorption process for the sorption drying material in the sorbent container can be safely finished if a defect, in particular e.g. Overheating of the sorbent SB with the sorbent, its associated heating device, or the interior of the washing container SB at

Desorption occurs. In a corresponding manner, the main control device HE can also instruct the additional control device ZE to switch off the heating device in another error case. Such another error case may be, for example, a fault or interruption of the communication link on the data bus BUL. Possibly. the additional control device ZE can also be independent or self-sufficient, i. independently of the main control unit HE, the heating device HE and / or the fan unit LT off, if an error occurs during each desorption process.

If necessary, it may be appropriate for an operator of the

Domestic dishwasher GS to provide the option to activate or deactivate the sorption drying system TS on the activation or deactivation of a dedicated program button or the appropriate selection of a program menu. This is schematically illustrated in FIG. 16 in that a program key or a program menu item PG1 of a control panel BF of FIG

Household dishwasher GS is shown, which via a control line SL1 by means of control signals SS1 of the control logic HE corresponding activation or Deactivation signals for switching on and off the sorption drying system TE.

In particular, in the control panel BF of the domestic dishwasher GS shown in FIG. 18, a first selection key T1 connected to the main control unit HE can be provided for selecting a program variant "energy" or "sorption operation". This program focuses on saving energy. In the case of the present exemplary embodiment, this is achieved by the main control device HE controlling the rinsing program during actuation of the selection button T1 in such a way that during the rinsing process or during the rinsing step, no use at all is made

Flow heater is heated. Furthermore, the main control device HE controls the sorption troubleshooting system TS in such a way that the drying of the ware, in particular of the ware, during a drying step following the final rinse step is effected solely by means of the sorption drying system TS.

In the case of the present exemplary embodiment, the main control device HE is set up in such a way that, in addition to or independent of the first button T1 "energy", the main control device HE is connected to a second button T2 "drying power" of the control panel BF of the domestic dishwasher GS. Upon actuation of the second button T2, the main controller HE controls the

Sorption drying system ST such that the fan run time of the fan unit or the blower LT of the sorption drying system ST is increased during the drying step. As a result, an improved drying of the items to be washed, especially all tableware parts is achieved.

In the case of the present embodiment, it may also be provided, alternatively or in addition to increasing the blower operating time to set the main control device HE so that this upon actuation of the second button T2 in addition to pure sorption drying the interior of the washing container SB by means of a non-illustrated, the expert However, generally known continuous flow heater heats up rinsed clear rinse during rinse or rinse. It may be sufficient in an advantageous manner that caused by the rinsing heat transfer to the items to be dried with a lower energy consumption than in the case without Sorptionstrocknung done. Because by the now used

Sorption drying system can be saved by sorption of humidity electrical heating energy. Thus, both by so-called "self-heat drying" and by sorption drying, i.e. by a combination or supplementation of both types of drying, improved drying of wet or moist ware can be achieved.

In addition to or independent of the above specific keys T1, T2, a third key T3 "program run time" connected to the main control unit HE can be provided If the sorption drying system ST is switched on, the program runtime can be compared to conventional drying systems (without

Sorptionstrocknung) are lowered. When pressing the third button T3, the main control device HE may optionally in addition to heating the respective rinsing liquor by means of a Desorptionsvorgangs the rinse by means of a non-illustrated, the expert but generally known water heater especially in the sump of the domestic dishwasher GS in the

Heat pre-rinse phase and / or cleaning phase. Additionally or independently thereof, controlled by the main controller HE, by increasing the spray pressure, e.g. by increasing the engine speed of the circulation pump UWP the running time during cleaning (cleaning step) can be further shortened. Furthermore, by increasing the rinse temperature, the drying time can be further reduced.

In addition to or independent of the previous specific keys T1, T2, T3, a fourth button T4 connected to the main control unit HE can be provided with the function "influencing the cleaning performance." Upon actuation of this key T4, the main control unit HE can control the domestic dishwasher GS in such a way that the cleaning performance is increased with a constant running time without the energy consumption being increased compared to a dishwasher without sorption drying system TS, because the desorption process is started at the same time during the pre-rinsing and / or cleaning process and thereby hot air which has leaked out of the sorption drying material Amount of water is loaded, enters the washing container SB, heating energy can be saved for heating a desired Spülbad total amount of liquid.

Claims

1. Dishwasher, in particular domestic dishwasher (GS), comprising at least one washing container (SPB), a control device (HE), which is set up, the intended operation of

Dishwasher (GS) by means of a wash program to control, and at least one sorption drying system (TS) for drying within the washing container (SB) can be arranged washware, characterized by, with the control device (HE) connected input means (BF, T1, T2, T2, T4 ) for modifying the wash program.

2. Dishwasher according to claim 1, characterized in that the sorption drying system (TS) has at least one sorption container (SB) with reversibly dehydratable sorption drying material (ZEO), the

Leading through an air flow (LS2) via at least one air duct (LK) is connected to the rinsing tank (SPB), and in particular the sorption (SB) is formed with such a geometry that its sorption (SE) with the Sorptionstrocknungsmaterial (ZEO) a flow direction specification (DSR) for air flow (LS2) in

Essentially in or against the direction of gravity (SKR).

3. Dishwasher according to claim 1 or 2, characterized in that the washing program temporally successive individual program steps having at least one pre-rinse step, at least one cleaning step, at least one intermediate rinsing step, at least one rinse step and at least one drying step.

4. Dishwasher according to claim 3, characterized in that the control device (HE) due to the actuation of the input means (T1) the

Rinse step completely without heating rinse aid used for the rinse step performs.

5. Dishwasher according to claim 3 or 4, characterized in that due to the actuation of the input means (T1), the control device (HE) carries out the drying step exclusively by means of the sorption drying system (TS).

6. Dishwasher according to one of claims 3 to 5, characterized in that due to the actuation of the input means (T2), the control device (HE) increases the time during the drying step.

7. Dishwasher according to claim 6, characterized in that the

Control device (HE) increases the time during the drying step by turning on a blower (LT) of the sorption drying system (TS) for a longer period of time.

8. Dishwasher according to one of claims 4 to 7, characterized in that the control device (HE) due to the actuation of the input means (T2), the dishwasher (GS) controls such that a rinse aid for the rinse step is heated.

9. Dishwasher according to claim 8, characterized in that the

Control device (HE) is connected to a water heater and this drives for heating the rinse aid.

10. Dishwasher according to one of claims 3 to 9, characterized in that the control device (HE) due to the actuation of the input means

(T3) controls the dishwasher (GS) in such a way that a rinsing liquid used for the cleaning step and / or a liquid used for the pre-rinsing step is heated.

Dishwasher according to claim 10, characterized in that the control device (HE) is connected to a flow heater which is adapted to heat the cleaning liquid during the cleaning step and / or the liquid during the pre-rinsing step, wherein the Control device (HE) is set, the flow heater during the

Cleansing step and / or the pre-rinse step at least partially turn on.

12. Dishwasher according to one of claims 3 to 1 1, characterized in that the control device (HE) due to the actuation of the

Input means (T3) controls the dishwasher (GS) such that during the cleaning step and / or during the pre-rinsing step, a spray pressure, which is applied to the cleaning liquid or the liquid for the pre-rinse step is increased.

13. Dishwasher according to claim 12, characterized in that the control device (HE) with a circulation pump (UWP) is connected and the control device (HE) operates a circulating pump (UWP) driving motor for the increased spray pressure at an increased speed.

14. Dishwasher according to one of claims 3 to 13, characterized in that due to the actuation of the input means (T4), the control device (HE) during the pre-rinse and / or cleaning step at the same time a desorption of the sorption drying system (TS) starts.