US20090038661A1 - Front-loader dishwashing machine with heat recovery - Google Patents

Front-loader dishwashing machine with heat recovery Download PDF

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Publication number
US20090038661A1
US20090038661A1 US12/030,761 US3076108A US2009038661A1 US 20090038661 A1 US20090038661 A1 US 20090038661A1 US 3076108 A US3076108 A US 3076108A US 2009038661 A1 US2009038661 A1 US 2009038661A1
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United States
Prior art keywords
dishwashing
chamber
dishwashing machine
machine according
inlet
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Abandoned
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US12/030,761
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English (en)
Inventor
Karl HILDENBRAND
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Meiko Maschinenbau GmbH and Co KG
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Meiko Maschinenbau GmbH and Co KG
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Application filed by Meiko Maschinenbau GmbH and Co KG filed Critical Meiko Maschinenbau GmbH and Co KG
Priority to US12/030,761 priority Critical patent/US20090038661A1/en
Assigned to MEIKO MASCHINENBAU GMBH & CO KG reassignment MEIKO MASCHINENBAU GMBH & CO KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HILDENBRAND, KARL
Publication of US20090038661A1 publication Critical patent/US20090038661A1/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/48—Drying arrangements
    • A47L15/488—Connections of the tub with the ambient air, e.g. air intake or venting arrangements
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/48—Drying arrangements
    • A47L15/483—Drying arrangements by using condensers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/48—Drying arrangements
    • A47L15/486—Blower arrangements

Definitions

  • the invention relates to a dishwashing machine for commercial use.
  • Dishwashing machines such as these are used, for example, in large kitchens, in order to clean plates and dishes, glasses, flatware, trays or similar articles.
  • single-chamber systems are also used in large kitchens, in particular in large kitchens for hotels, guest houses, factory canteens, hospitals, the authorities, schools or similar facilities.
  • Single-chamber systems such as these with a single dishwashing chamber are frequently also referred to as “front-loaders” and have a dishwashing chamber with a front door which can be opened for loading and unloading the dishwashing chamber with items to be cleaned.
  • Dishwashing machines of this type may be designed for various purposes and, for example, may be used as free-standing appliances or else as so-called appliances used below work surfaces.
  • dishwashing machines for commercial use are subject to the problem that the throughput times must be considerably reduced. While dishwashing programs of up to more than 2 hours are normal for domestic appliances, dishwashing cycles from a few 10 s of seconds up to a few minutes are normal in the field of commercial applications.
  • dishwashing machines for commercial typically have a plurality of tanks so that a final washing liquid is heated (for example in a final washing tank) separately during a washing cycle (for which purpose, for example, a washing tank is used), in order then to carry out a final washing cycle immediately after completion of the washing cycle, or with only a short time delay. After final washing (although a further drying cycle may also be provided), the front door can be opened so that the items that have been cleaned can be removed.
  • DE 10 2005 023 428 A1 discloses a commercial dishwashing machine having a spraying chamber for holding items to be cleaned, which has a fan in order to produce an air flow.
  • This air flow is passed from an air inlet underneath the area for the items to be cleaned, for example a gap underneath a folded door of the dishwashing machine, through the spraying chamber to an air outlet, with a deflector device being used. The air flow is then passed to an outlet by the fan.
  • WO 2006/12062 A1 and WO 2006/123947 A1 each disclose small appliances which are provided with vapor suction.
  • these appliances have the disadvantage that, in these appliances, the vapor is emitted directly into the working environment.
  • the proposed dishwashing machine is designed for commercial use. It is designed to clean many types of item to be cleaned, in particular plates and dishes, flatware, trays, boxes, glasses and/or similar items to be cleaned that are used in large kitchens. However, other types of items to be cleaned may, of course, also be used, for example items to be cleaned from the field of nursing and hospitals.
  • the dishwashing machine has a dishwashing chamber with a front door which can be opened for loading and unloading the dishwashing chamber with items to be cleaned.
  • This front door will normally have a hinge in order, for example, to allow the front door to be tilted downwards, upwards or to the side, in order in this way to provide access to the dishwashing chamber.
  • Other types of front doors are, however, also feasible.
  • the dishwashing machine has at least one condensation precipitation device, which is connected to the dishwashing chamber and has at least one fan for sucking or blowing vapor and/or air out of the closed dishwashing chamber.
  • This condensation precipitation device has at least one condensation surface for the condensation of vapor.
  • the dishwashing machine also has an inlet-air channel for supplying ambient air into the dishwashing chamber.
  • This inlet-air channel is provided with an inlet-air fan.
  • the refinement according to the invention of the dishwashing machine avoids the disadvantages of the prior art as described above in that ambient air can be introduced into the dishwashing chamber, for example by means of the inlet-air fan, thus ensuring pressure equalization within the dishwashing chamber.
  • the inlet-air channel may, in particular, be designed so as to virtually completely preclude this inlet-air channel from becoming dirty during practical use.
  • the emergence of liquid can also be avoided by appropriate design of this inlet-air channel.
  • damage to sensitive items to be cleaned can be avoided by avoiding the problem of a vacuum pressure being formed within the dishwashing chamber.
  • the condensation precipitation device may be accommodated entirely or partially in a top part of the dishwashing chamber, and/or this condensation precipitation device may be accommodated (once again entirely or partially) in a rear wall of the dishwashing chamber.
  • the dishwashing machine may, for example, be designed such that the fan and the inlet-air fan are operated synchronized in time.
  • an appropriate controller can be provided for this purpose, synchronizing these fans in time.
  • this synchronization can be carried out in such a manner that the fan and the inlet-air fan are started at the same time and/or with a predetermined time offset.
  • the inlet-air fan can then be stopped, for example, at the same time as or at a time before the fan. This allows the remaining vapor to be sucked out of the dishwashing chamber.
  • the at least one inlet-air channel can be in the form of an elongated channel, although it may also be in the form of a connecting stub or short piece of channel.
  • This inlet-air channel can be at least partially arranged in the area of the rear wall of the dishwashing chamber.
  • the inlet-air channel may have an inlet air opening to the working environment on the rear face and/or the top face of the dishwashing chamber.
  • the inlet-air channel may comprise a blowing-in opening in the bottom area of the dishwashing chamber.
  • the expression “in the bottom area” should not necessarily be understood as meaning an arrangement in the bottom of the dishwashing chamber itself, but an arrangement in the side walls of the dishwashing chamber is preferable, which is adjacent to the bottom of the dishwashing chamber and/or which is no more than 1 ⁇ 3 to 1 ⁇ 2 of the overall height of the dishwashing chamber away from the bottom.
  • the inlet-air channel may, for example, be equipped with an inlet air valve.
  • This inlet air valve is intended to be designed to switch quickly and to allow large amounts of inlet air to pass through it so that, by way of example, inlet air flaps (for example spring-loaded control flaps) can advantageously be used.
  • flow guiding devices can be provided, in particular in the area of the top of the dishwashing chamber. These flow guiding devices may in particular have flow laminates and/or perforated intermediate covers.
  • the condensation precipitation device may additionally be designed such that at least a portion of the flow of the air which is sucked out of the dishwashing chamber is passed back again into the dishwashing chamber after flowing through the condensation precipitation device (and therefore after at least partial drying).
  • the condensation precipitation device may have at least one chamber with at least one inlet and at least one outlet, as well as at least one condensation outflow for emission of condensation.
  • this condensation outflow can be passed back again into the dishwashing chamber, into one or more tanks of the dishwashing machine, or the condensation outflow can be connected to an outflow and/or outlet.
  • the fan of the condensation precipitation device may be connected to the inlet and/or to the outlet of the condensation precipitation device, or it may also be provided in the intermediate area, for example at a point within a flow channel of the condensation precipitation device.
  • the condensation precipitation device may have at least one cold plate, at least one cold plate which is sprayed with a cooling medium, at least one heat exchanger through which a cooling medium flows (for example a plate-type heat exchanger and/or a serpentine cooling coil-type heat exchanger), or any desired combination of these condenser elements.
  • the at least one condenser element is preferably aligned at an angle to the horizontal.
  • the at least one condenser element may have a laminate arrangement, for example an arrangement of a plurality of cooling surfaces which are arranged essentially parallel.
  • a meandering arrangement can also be provided, for example by inserting a plurality of cooling surfaces into one another with an offset with respect to one another. This in turn makes it possible to define a flow channel which likewise has a meandering profile. Any desired parallel arrangement of at least two condenser elements is also feasible.
  • the condensation precipitation device may, for example, have one or more passive condenser elements in the form of cooling surfaces.
  • the condensation precipitation device may, however, also have at least one condenser element which can be cooled with water, in which case at least one first condenser connection of the condenser element can be connected to a water supply, in particular to a fresh-water supply.
  • the dishwashing machine can be designed in order to carry out a dishwashing program.
  • the dishwashing machine may for this purpose have one or more controllers, for example an electronic controller, in particular a controller which has one or more computers (for example microcomputers).
  • this computer can be appropriately programmed to carry out the dishwashing program.
  • the condensation precipitation device is intended to be operated in at least one program step in the dishwashing program in order to suck vapor and/or air out of the dishwashing chamber (suction step).
  • this suction program step can be carried out at the end of the dishwashing program.
  • the fan and the inlet-air fan can be operated synchronized in time in order to carry out this suction program step.
  • the final washing tank may have a two level control system, for example with the final washing program step being carried out until the level in the final washing tank has reached a lower level. The level in the final washing tank can then be raised again in the subsequent suction program step, until the upper level is reached again.
  • Other program configurations are, however, also feasible.
  • a liquid valve for controlling a supply of the cooling medium can also be provided when using a liquid-cooled condenser element, in particular a water-cooled condenser element.
  • the dishwashing machine is advantageously designed such that the timings of the operation of this liquid valve and the operation of the fan (and if appropriate the operation of the inlet-air fan as well) are synchronized.
  • the liquid valve can also be opened and the fan can be started essentially at the same time.
  • the stopping of these two elements can also be synchronized in time, although it is preferable to stop the fan with a certain lag.
  • FIG. 1 shows a front view of an embodiment of a dishwashing machine according to the invention
  • FIG. 2 shows a section illustration in the form of a side view of the embodiment of the dishwashing machine shown in FIG. 1 ;
  • FIGS. 3A to 3D show various embodiments of condensation precipitation devices
  • FIGS. 4A and 4B show two embodiments of a condenser element with liquid cooling
  • FIG. 5 shows an embodiment of a condensation precipitation device with partial feedback of the dried air to the dishwashing chamber
  • FIG. 6 shows an embodiment of a liquid system for one preferred dishwashing machine, illustrated schematically.
  • FIGS. 1 and 2 show an embodiment of a dishwashing machine 110 according to the invention, illustrated schematically.
  • the dishwashing machine 110 is in the form of a front-loader and has a dishwashing chamber 112 with a housing 114 .
  • the housing 114 On its front, the housing 114 has a front door 116 , which can be folded downward in this embodiment, in order to allow items to be cleaned to be loaded in the dishwashing chamber 112 .
  • This loading process can be carried out either directly, by placing items to be cleaned in appropriate holders within the dishwashing chamber 112 , or this can be done by the use of baskets for the items to be cleaned. Items to be cleaned and the corresponding devices are not illustrated in FIGS. 1 and 2 .
  • the dishwashing machine 110 has a cover part 118 which is in the form of a condensation precipitation device 120 .
  • this exemplary embodiment of the dishwashing machine has an inlet-air channel 122 in its rear wall (that is to say the side opposite the front door 116 ).
  • This inlet-air channel has an inlet air opening 124 on the upper face of the dishwashing machine 110 .
  • An inlet-air fan 126 is accommodated in the inlet-air channel 122 in the area of this inlet air opening 124 .
  • the inlet-air channel 122 opens into the dishwashing chamber 112 at a blowing-in opening 128 .
  • This blowing-in opening 128 is in this case arranged in the lower area of the dishwashing chamber 112 , that is to say immediately above a liquid level in a washing tank 130 which is accommodated underneath the dishwashing chamber 112 .
  • a spring-loaded inlet air flap 132 is also arranged within the inlet-air channel 122 , can be used as a flow valve and makes it more difficult, for example, for water vapor to emerge from the dishwashing chamber 112 into the working environment.
  • the condensation precipitation device 120 has a chamber 134 with an inlet 136 and an outlet 138 .
  • the outlet is arranged on the upper face of the dishwashing machine 110 , although, alternatively or additionally, as is indicated by way of example in FIG. 1 , the outlet 138 could also be arranged at the side of the dishwashing machine 110 .
  • a condenser element 140 is arranged within the chamber 134 and, in this simple exemplary embodiment, is a simple cold plate 142 with condensation surfaces 144 .
  • the cold plate 142 defines a flow channel 146 within the condensation precipitation device 120 .
  • a fan 148 is arranged in the outlet 138 , and is preferably operated in synchronism with the inlet-air fan 126 , as described above.
  • condensation precipitation device 120 has a condensation outflow 150 .
  • condensation can flow directly out of the condensation precipitation device 120 into the washing tank 130 via this condensation outflow 150 .
  • an outlet could also be provided into an outflow or, as will be described in more detail further below, condensation could be transferred to a final washing tank.
  • a flow guiding device 152 for example in the form of a perforated cover plate, is provided substantially immediately underneath the condensation precipitation device 120 , in the trough area of the dishwashing chamber 112 .
  • This perforated cover plate is used to homogenize air flows within the chamber 112 , in order in this way to dry the items that have been cleaned, more uniformly.
  • the fan 148 of the condensation precipitation device 120 and the inlet-air fan 126 are preferably operated in synchronism, as described above. This allows vapor and/or moist air to be sucked out of the dishwashing chamber 112 into the chamber 134 of the condensation precipitation device 120 without any need for pressure equalization, as a result of leaks in the housing 114 of the dishwashing chamber 112 (for example a gap underneath the front door 116 ).
  • the condensation precipitation device ensures that moisture is reliably extracted from the air from the dishwashing chamber 112 , before it can escape into the working environment.
  • FIGS. 3A to 3D show various alternative exemplary embodiments of the condensation precipitation device 120 which can be used as alternatives to the exemplary embodiment shown in FIG. 2 . It should be noted that, in addition to the condensation precipitation device 120 being formed in the cover part, an analogous configuration on the rear face of the dishwashing chamber 112 (that is to say oriented vertically) is also feasible.
  • the arrangement in FIG. 3A shows a meandering arrangement of passive cold plates 142 , that is to say in this example cold plates 142 which are not liquid-cooled, with condensation surfaces 144 . These are arranged at an angle (that is to say at an angle to the horizontal) and thus allow the condensation to flow away to the condensation outflow 150 .
  • a connecting stub of the inlet 136 can additionally be equipped with a rim 154 which extends into, the chamber 134 in order to prevent the condensation from flowing away into the inlet 136 .
  • the exemplary embodiment of the condensation precipitation device 120 corresponds essentially to that of the condensation precipitation device 120 in the exemplary embodiment shown in FIG. 2 .
  • An outlet air flow 156 flows through the flow channel 146 of the chamber 134 in a meandering form, flowing a number of times over the condensation surfaces 144 of the condenser plates 142 . Furthermore, in the exemplary embodiment shown in FIG. 3A , an outflow 158 is provided into which the condensation can run away. As described above, this refinement is also optional.
  • FIG. 3B shows one exemplary embodiment of a condensation precipitation device 120 , whose function and design correspond essentially to those of the example shown in FIG. 3A , but in which the cold plates 142 are sprayed via spraying elements 160 with cooling liquid, for example with cold water.
  • This cooling liquid runs, together with the condensation, away into the condensation outflow 150 and can be supplied either to a waste water connection or, alternatively or additionally, to one or more tanks for the dishwashing machine 110 , as well.
  • Spraying the cold plates 142 with cooling liquid therefore represents an intermediate step between a passive configuration of the condenser elements 140 and an active configuration, and increases the efficiency of the precipitation of the condensation in the outlet air flow 156 from which moisture is to be removed.
  • FIG. 3C shows a further exemplary embodiment, likewise showing a modified form of the condensation precipitation device 120 as illustrated in FIG. 3A .
  • cold plates 142 are used as the condenser elements 140 and are incorporated in the chamber 134 at an angle to the horizontal (for example at an angle of about 2 to 10°, preferably about 5°, as is also the case in the other exemplary embodiments).
  • this exemplary embodiment does not have a meandering arrangement, and, instead, the cold plates 142 are in the form of perforated cold plates, each having one or more openings 162 through which the air 156 from which moisture is to be removed can flow from the inlet 136 to the outlet 138 .
  • the refinements shown in FIGS. 3A and 3C can, of course, also be combined so that, for example, openings 162 can also be provided in the cold plates 142 in the meandering arrangement shown in FIGS. 3A and 3B .
  • FIG. 3D active cooling is provided in FIG. 3D .
  • the condensation precipitation device 120 once again, as in FIGS. 3A to 3C as well, initially has a chamber 134 , for example at an angle to the horizontal, with an inlet 136 and an outlet 138 , a condensation outflow 150 and a condenser element 140 .
  • no passive cooling is provided for the condenser element 140 , with cooling being provided via serpentine cooling coils 164 , instead.
  • FIGS. 4A and 4B there are various possible ways to design the condenser element 140 , and examples of these are illustrated in FIGS. 4A and 4B .
  • the condenser element 140 is in the form of a pure serpentine cooling coil 164 , having a first condenser connection 166 for supplying cooling liquid, and a second condenser connection 168 as the outflow for the cooling liquid.
  • the serpentine cooling coil 164 therefore forms a heat exchanger 170 in which an amount of heat is transferred from the air 156 from which moisture is to be removed to the cooling liquid of the heat exchanger 170 .
  • the heat exchanger 170 of the condenser element 140 is in the form of a plate-type heat exchanger 172 , with flat condensation surfaces 144 .
  • serpentine cooling coils 164 can be provided in the interior of the plate-type heat exchanger 172 and are once again passed, for example in a meandering shape, through the heat exchanger 170 , or a cooling medium can flow completely and homogeneously through the plates.
  • the fan 148 is in each case arranged in the area of the outlet 138 .
  • this fan 148 can also be designed in an alternative form, for example with the chamber 134 of the condensation precipitation device 120 not being connected directly, but via one or more tubes.
  • the fan 148 should be designed and configured to ensure that the flow of outlet air 156 through the condensation precipitation device 120 from the dishwashing chamber 112 is as great as possible, with the amount of air in each case being matched to the capability for separation of condensation on the condenser elements 140 .
  • the fan 148 can also be connected to the inlet 136 of the condensation precipitation device 120 .
  • this fan 148 can also be arranged in the flow channel 146 (for example in the meandering configuration shown in FIG. 3A ) between the cold plates 142 .
  • a plurality of fans 148 can also be provided, although this increases the design complexity and the operating costs.
  • FIG. 5 shows one exemplary embodiment of the condensation precipitation device 120 which not only sucks air out of the dishwashing chamber 112 , but passes it over condenser elements 140 .
  • these condenser elements 140 are once again in the form of cold plates 142 although, in this exemplary embodiment, they are arranged vertically rather than horizontally.
  • the condensation precipitation device 120 as shown in FIG. 5 may, however, also be designed as a horizontal condensation precipitation device.
  • other refinements are also feasible, for example once again the refinements with heat exchangers 170 as described above.
  • the flow channel 146 splits immediately adjacent to the fan 148 that is incorporated in. the flow channel 146 (with the motor 174 for the fan 148 in this case being arranged outside the chamber 134 ). While a portion of the air 156 is allowed to escape via the outlet 138 into the working environment, a portion of the flow is once again fed back into the dishwashing chamber 112 via a return line 176 , where it assists the pressure equalization ⁇ process, in order then to be passed back again via the input suction to the inlet 136 of the condensation precipitation device 120 . This results in at least a portion of the flow of air 156 passing over the condenser elements 140 repeatedly.
  • the ratio between the flow element that is fed back and the flow element that is ejected may, for example be governed by the opening cross sections of the outlet 138 and the return line 176 and may be adjusted, for example by means of one or more slides and/or valves, in order to achieve optimum drying.
  • FIG. 6 schematically illustrates one preferred refinement of the dishwashing system in the dishwashing machine 110 , including the condensation precipitation device 120 .
  • a heat exchanger 170 is provided in the condensation precipitation device 120 , and is represented symbolically here in the form of a serpentine cooling coil 164 .
  • Air 156 is passed via the heat exchanger 170 through the inlet 136 by means of the fan 148 from the dishwashing chamber 112 (indicated only symbolically here), in order finally to be ejected into the surrounding area via the outlet 138 .
  • the inlet-air channel 122 in which the inlet-air fan 126 is arranged, opens into the dishwashing chamber 112 at a blowing-in opening 128 .
  • FIG. 2 does not show a washing tank 130 which, for example, is arranged in the bottom area of the dishwashing chamber 112 , or is in the form of a separate tank.
  • the heat exchanger 170 can be designed according to one of the embodiments shown in FIGS. 4A and 43 .
  • a first condenser connection 166 of the heat exchanger 170 is connected to a cold water connection 178 .
  • the second condenser connection 168 is in contrast preferably connected via a free outflow 180 (for example via a free-running section) to a final washing tank 182 for the dishwashing machine 110 .
  • the inlet flow of fresh water. via the cold water connection 178 into the heat exchanger 170 can be controlled via a liquid valve 184 , for example a solenoid valve.
  • the final washing tank 182 in this exemplary embodiment is preferably in the form of a two-level tank, having an upper level sensor 186 and a lower level sensor 188 .
  • the final washing tank 182 is connected via a pump 190 and a pipeline system 192 to a spraying system 194 , in order to apply liquid to the items to be cleaned.
  • the dishwashing machine 110 may have a controller 196 which, for example, can be designed as described above, that is to say in particular may comprise one or more computers, and which is preferably programmed to carry out a dishwashing program.
  • the controller 196 can check information from the level sensors 186 , 188 , can operate the pump 190 and can operate the liquid valve 184 and the fan 148 and/or 126 .
  • a final washing program step first of all, in which (for example following one or more washing steps in which the dishwashing machine 110 is operated in the circulation mode), the plates and dishes in the dishwashing chamber 112 are finally washed using final washing liquid from the final washing tank 182 .
  • the level of the final washing liquid in the final washing tank 182 can fall from the level of the upper level sensor 186 to the level of the lower level sensor 188 .
  • the controller 196 preferably automatically stops the pump 190 .
  • the liquid valve 184 is preferably closed during this final washing program step.
  • the fan 148 can then be started in a suction program step, as well as the inlet-air fan 126 (at the same time or preferably with just a slight time offset). Furthermore, the liquid valve 184 can be opened (likewise at the same time or preferably with a slight time offset). During this process, cooling water flows through the heat exchanger 170 , and condensation can be precipitated on the heat exchanger 170 . At least some of the air 156 which has been sucked out of the dishwashing chamber 112 has the moisture removed from it before it is allowed to escape to the surrounding area again.
  • “Consumed” cooling water which has absorbed heat from the vapor from the dishwashing chamber 112 after flowing through the heat exchanger 170 , is supplied via the free outflow 180 to the final washing tank 182 until the upper level, as defined by the upper level sensor 186 , is reached again.
  • the liquid valve 184 is then closed.
  • the fan 148 (and if appropriate the inlet air fan 126 ) can be switched off, and the suction program step ended, at the same time as the liquid valve 184 is closed, or a certain lag can preferably be made use of, within which air 156 is still sucked out of the dishwashing chamber 112 .

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US12/030,761 2007-02-13 2008-02-13 Front-loader dishwashing machine with heat recovery Abandoned US20090038661A1 (en)

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US12/030,761 US20090038661A1 (en) 2007-02-13 2008-02-13 Front-loader dishwashing machine with heat recovery

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEDE102007007133 2007-02-13
DE102007007133A DE102007007133A1 (de) 2007-02-13 2007-02-13 Frontlader-Geschirrspülmaschine mit Wärmerückgewinnung
US90733007P 2007-03-28 2007-03-28
US12/030,761 US20090038661A1 (en) 2007-02-13 2008-02-13 Front-loader dishwashing machine with heat recovery

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US (1) US20090038661A1 (de)
EP (1) EP2117414B1 (de)
CN (1) CN101610707B (de)
AT (1) ATE495696T1 (de)
DE (2) DE102007007133A1 (de)
WO (1) WO2008098745A2 (de)

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US20100095989A1 (en) * 2007-08-31 2010-04-22 Jung Youp Han Dish washing machine
US20130152981A1 (en) * 2011-12-15 2013-06-20 Whirlpool Corporation Dishwasher with closed loop condenser
US20140223761A1 (en) * 2013-02-12 2014-08-14 Lg Electronics Inc. Dishwasher and method of controlling the same
US20150157186A1 (en) * 2012-07-04 2015-06-11 BSH Bosch und Siemens Hausgeräte GmbH Dishwasher, in particular domestic dishwasher, comprising at least one guide structure on the inner face of the door thereof for deflecting drying fluid flowing along therefrom
US20170325654A1 (en) * 2014-11-28 2017-11-16 BSH Hausgeräte GmbH Dishwasher comprising a suction unit
US9907451B2 (en) 2016-05-09 2018-03-06 Samsung Electronics Co., Ltd. Dishwasher drying system with thermal storage heat exchanger
EP3006619B1 (de) * 2014-10-06 2018-08-29 Bonferraro S.p.A. Vorrichtung und verfahren zur kondensation von dampf im entladekreis einer wasch- und desinfektionsmaschine
US10136793B2 (en) 2014-07-23 2018-11-27 Whirlpool Corporation Dishwasher
CN110072426A (zh) * 2016-12-06 2019-07-30 Jp产业股份公司 用于干燥餐具等的机器、以及用所述机器干燥餐具等的方法
US10506912B2 (en) * 2018-05-16 2019-12-17 Haier Us Appliance Solutions, Inc. Dishwasher appliance with vent duct mixing
US11122959B2 (en) * 2020-01-22 2021-09-21 Haier Us Appliance Solutions, Inc. Dishwashing appliance having an air-drying dehumidification assembly
US11122960B2 (en) * 2020-02-19 2021-09-21 Haier Us Appliance Solutions, Inc. Dishwashing appliance having an air-drying dehumidification assembly

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WO2008098745A3 (de) 2009-01-22
CN101610707A (zh) 2009-12-23
EP2117414A2 (de) 2009-11-18
DE102007007133A1 (de) 2008-08-14
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CN101610707B (zh) 2012-02-15
WO2008098745A2 (de) 2008-08-21

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