EP2252191A1 - Procédé d'auto-nettoyage d'un lave-vaisselle à avancement automatique et lave-vaisselle à avancement automatique correspondant - Google Patents

Procédé d'auto-nettoyage d'un lave-vaisselle à avancement automatique et lave-vaisselle à avancement automatique correspondant

Info

Publication number
EP2252191A1
EP2252191A1 EP08871607A EP08871607A EP2252191A1 EP 2252191 A1 EP2252191 A1 EP 2252191A1 EP 08871607 A EP08871607 A EP 08871607A EP 08871607 A EP08871607 A EP 08871607A EP 2252191 A1 EP2252191 A1 EP 2252191A1
Authority
EP
European Patent Office
Prior art keywords
cleaning
zone
storage tank
storage tanks
cleaning fluid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08871607A
Other languages
German (de)
English (en)
Other versions
EP2252191B1 (fr
Inventor
Denis Lehmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Meiko Maschinenbau GmbH and Co KG
Original Assignee
Meiko Maschinenbau GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Meiko Maschinenbau GmbH and Co KG filed Critical Meiko Maschinenbau GmbH and Co KG
Publication of EP2252191A1 publication Critical patent/EP2252191A1/fr
Application granted granted Critical
Publication of EP2252191B1 publication Critical patent/EP2252191B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • A47L15/24—Washing or rinsing machines for crockery or tableware with movement of the crockery baskets by conveyors
    • A47L15/241—Washing or rinsing machines for crockery or tableware with movement of the crockery baskets by conveyors the dishes moving in a horizontal plane
    • 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
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0057—Cleaning of machines parts, e.g. removal of deposits like lime scale or proteins from piping or tub
    • 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
    • A47L15/4202—Water filter means or strainers
    • A47L15/4208—Arrangements to prevent clogging of the filters, e.g. self-cleaning

Definitions

  • the invention relates to a method for self-cleaning a cleaning machine, in particular a fürlauf Hughesmaschinc for to be cleaned Good, such as dishes.
  • Cleaning machines in particular continuous dishwashers, which are used, for example, for cleaning the costs incurred in catering, to be cleaned dishes, Tray and container parts are known. While dishwashing devices for the domestic sector generally run through a program sequence with the successive cleaning steps in the case of a stationary arrangement of the dishes and cutlery items to be cleaned, the treatment zones are arranged successively in continuous dishwashing machines and the items to be cleaned or the item to be cleaned are suitably designed from the application area (inlet area) to the removal area (outlet area) by successive treatment zones.
  • Conventional continuous-flow dishwashers generally have four different treatment zones between the inlet region and the outlet region.
  • a conveyor promotes the items to be washed through the individual treatment zones.
  • This is a pre-cleaning zone, at least one cleaning zone, a final rinse zone and a drying zone.
  • the pre-cleaning zone easily adhering dirt is removed from the material to be cleaned.
  • rinsing liquid is sucked by a pump from the storage tank associated with this treatment zone and sprayed over the material to be cleaned by appropriately trained nozzles.
  • the rinsing liquid then flows back into the storage tank and is again replaced by a sucked and introduced into a circulation circuit.
  • the storage tank is covered by sieves to keep larger dirt particles from the rinsing liquid.
  • the at least one cleaning zone which adjoins the pre-cleaning zone, dirt particles adhering to the items to be cleaned are removed by means of a usually alkaline rinsing liquid.
  • the heated rinsing liquid is sucked by a further circulating pump from the storage tank associated storage tank and sprayed over the items to be washed by means of suitably positioned and oriented nozzles. Subsequently, the rinsing liquid flows back into the corresponding storage tank and is sucked in again by the circulation pump.
  • the storage tank is covered by sieves in order to retain coarser dirt particles from the rinsing liquid.
  • the alkaline rinsing liquid which wets the surface of the ware, rinsed off together with any leftovers from the surface of the ware by means of hot fresh water to which a rinse aid is usually added.
  • the fresh water after this treatment step is again collected in a storage tank associated with this treatment zone and sucked with a circulating pump associated with this treatment zone and distributed by the actual fresh water rinsing by means of nozzles on the dishes (pump rinsing). Subsequently, the rinsing liquid flows back into the storage tank and is sucked in there again by the circulation pump.
  • the volume of water supplied to the described dishwasher in the final rinse zone passes from zone to zone via overflows, only by the action of gravity between the storage tanks of the individual zones, thus renewing the contents of each of the storage tanks.
  • the first tank of the machine pre-wash zone
  • there is an overflow which directs the excess water to the sewer system.
  • Each storage tank comprises a suitable device, such as a manually operated drain valve, which serves to empty each storage tank.
  • DE 10 2005 008987 B3 discloses a dishwasher which, in contrast to the above-described embodiment, has in each treatment zone a filter device with which the cleaning fluid, which is located in the respective storage tank, is continuously filtered.
  • This design of a dishwasher additionally has pumps between the individual NEN storage tanks of the respective zones, so that the water which is supplied to the dishwasher in the rinse, controlled and can be selectively pumped into the storage tanks of the other treatment zones.
  • each of the storage tanks of this machine has its own electrically powered means for draining the tank, ie a pump.
  • the above-described dishwashers are usually emptied and thoroughly cleaned. This is necessary to allow hygienic operation of the dishwasher. This cleaning is normally done in such a way that the doors or flaps fitted to each treatment zone are opened. Then the storage tank of each zone is emptied by the means provided, for example with the manual drain valves or, where appropriate, the pumps. Furthermore, all screens are removed from the tanks and cleaned outside the machine manually using water. The interior of the individual treatment zones is usually sprayed by hand with the aid of a hose with a spray device with water and rinsed out.
  • Dirt, such as food particles, starch deposits and grease edges, etc., which have deposited during the rinsing operation inside the zones are removed in this way and rinsed through the discharge openings of the individual storage tanks in the sewerage.
  • the water which is used for this purpose, is usually tap water, optionally heated tap water, without the addition of detergents.
  • Solutions are known in which attempts are made by additional apparatus measures to eliminate the disadvantages outlined above or at least alleviate them.
  • a solution is known, according to which a nozzle system is arranged on the ceiling of each storage tank, which is fed by a separate pump.
  • the separate pump is supplied from the storage tank of the pump flush. This water is still relatively clean at the end of a working day.
  • the water from the storage tank of the pump clearing can now be used to spray off the covers of the storage tanks. The dripping water is then no longer collected, but runs into the sewage system.
  • the disadvantage of this approach lies in the fact that the amount of water in the storage tank of the pump clearing is very limited.
  • the storage tank of the pump clearing usually has only a volume of about 30 1, so that the one-time use of this amount and the automated cleaning effect is extremely limited.
  • Solutions are also known to mitigate by additional procedural measures, the disadvantages described above.
  • the tanks of the machine are refilled, heated and enriched with cleaner.
  • the circulating pumps of all tanks are restarted and the inside of the machine is sprayed with clean wash water.
  • the disadvantage of this approach is that a very high level of additional water, cleaning and energy consumption is required to make the entire machine operational again at the end of an operating cycle.
  • the filling and heating of the storage tanks takes a relatively long time.
  • this zone In the area of the pre-cleaning zone, the cleaning effect with this method will be insufficient, because on the one hand by the operation here most Dirt accumulates and on the other hand, this zone usually has neither a means for heating nor a way to dosing of cleaners.
  • the object of the present invention is to provide a method in which automatic automatic cleaning of a continuous dishwasher is possible at the end of an operating period, such as a working day. Furthermore, the solution proposed by the invention is based on the object of designing an apparatus of a continuous-flow dishwasher in such a way that the described method for the automatic automatic cleaning of the continuous-flow dishwasher can be carried out there.
  • the continuous-flow dishwasher proposed according to the invention comprises a filter device on each of the storage tanks and has, in addition to the circulating pumps for carrying out the actual rinsing process, further pumps between the individual storage tanks of the respective treatment zones for the items to be washed.
  • the water that is supplied to the continuous dishwasher for example, within the pump clearing, controlled and specifically pumped into the storage tank of the respective previous treatment zone.
  • the inventively embodied continuous-flow dishwasher in which a filter device is provided in each treatment zone with which the cleaning fluid, which is located in the respective storage tank, can be filtered continuously, advantageously has the property that the cleaning fluid in the individual storage tanks even at the end of a cycle is still relatively clean.
  • the storage tank of the pre-rinsing zone for example the storage tank of the pre-rinsing zone (pre-clearing), according to the treatment sequence, most of the dirt residues are present, in each further, in the conveying direction of the material to be cleaned, the degree of contamination decreases on this following storage tank.
  • the relatively cleanest water is present, which in the described case of continuous fine filtering is virtually free of suspended particles.
  • the most polluted tank within a pre-rinse zone is first completely emptied.
  • a fine filter is backwashed and the concentrate contained therein fed into the drainage of the sewer system, any residual water remaining in the tank is also discharged via an emptying device into the drain, i. the sewer system.
  • a fine filter which is arranged in a second storage tank, is then backwashed and passed its concentrate into the first tank. As a result, the second storage tank is emptied, whereas the first storage tank is refilled.
  • the last tank for example the storage tank, is ready for delivery to the pump rinsing zone with a rinsed fine filter.
  • the last storage tank is filled with fresh water. This water can be preheated and come for example from a network provided by the customer or from a built-in boiler of the machine and enriched with detergent or rinse aid.
  • a rinse aid brings the particular advantage that at the end of the entire process sequence, all inner surfaces of the continuous dishwasher are sprayed with rinse solution, whereby the rinsing of dirt is particularly favored.
  • Dirt residues which are located in the respective treatment zone, are rinsed from all inner surfaces by means of the existing rinsing systems and nozzles and collected in the fine filter. After this cleaning process, the process cycle starts again.
  • the storage tanks are, as described above, drained one after the other, at the same time the filters of the individual storage tanks are rinsed and each tank receives again a filling with clean cleaning solution from the next tank.
  • the storage tank of the pump clearing is now no longer crowded. Its insides are wetted by the fresh water and therefore sufficiently well cleaned.
  • the still filled with liquid storage tanks are rinsed again as described above. This cycle is now repeated again, with the exception that now also the second last tank is not refilled.
  • each of the treatment zones of the dishwashers is equipped with additional nozzles. These are designed so that all inner surfaces of the respective zones can be sprayed with cleaning liquid.
  • the nozzle heads with their outlet openings are oriented or positioned accordingly.
  • the inner sides of the closed doors are acted upon in sufficient quantity with cleaning liquid through these nozzle heads.
  • These nozzle heads are either directly attached to the washing systems of the respective zone, or special nozzles or washing systems are installed in the individual treatment zones, which reach and wet all the inner surfaces.
  • the mentioned nozzle heads or nozzles or washing systems are either supplied directly from the respective built-circulation pump of the treatment zone with cleaning liquid, or there are special pumps that are controlled accordingly for the realization of the self-cleaning function.
  • the inner surfaces of the machines are smooth and formed without narrow gaps and corners to improve the cleaning result.
  • the cover of each storage tank is designed with a gradient, so that all residues of the cleaning liquid introduced in the automated cleaning cycle run well. Any existing Grobsiebsysteme and the bottoms of the storage tanks are designed so that all residual fluids are directed to each drain device.
  • the inner sides or rear sides of the doors are profiled, for example, with a herringbone pattern, whereby a damming of the liquid film forming on the surface is achieved and detached contaminants can be optimally washed away, without it after carrying out the inventive proposed automatic cleaning cycle 'manual intervention of a Operator required.
  • Figure 1 is a diagrammatic representation of an embodiment of a
  • FIGS. 2a and 2b show a schematic of the method sequence proposed according to the invention in different stages of the method
  • Figure 3 is a schematic representation of an independent nozzle head
  • Figure 4 is a schematic representation of the profiling of the inside of the doors.
  • FIG. 1 shows a diagrammatically reproduced variant of a continuous-flow dishwasher proposed according to the invention with a number of storage tanks corresponding to the number of treatment zones.
  • a section can be taken in the longitudinal direction of the continuous-flow dishwasher proposed according to the invention.
  • the continuous dishwasher is shown without items to be cleaned, as the situation at the end of the rinsing operation after an operating period generally represents.
  • the storage tanks of individual rinse zones 2, 3 and 4 are filled with dirty cleaning fluid whose degree of soiling is different from each other.
  • a transport device 7 for the material to be cleaned is shown schematically.
  • the transport device 7 is embodied by way of example as a conveyor chain.
  • other variants of the transport device can also be used.
  • a transport direction, in which the material to be cleaned is conveyed during operation by the individual rinsing zones 2, 3, 4 of the continuous-flow dishwasher, is designated by reference numeral 8.
  • a pre-rinsing zone 2 with its at least one rinsing system 9 follows in the transport direction 8.
  • the main rinsing zone 2 is followed by a main washing zone 3 having at least one rinsing system 10 associated therewith.
  • a pump rinsing zone 4 which likewise has at least one rinsing system 11, adjoins the main washing zone 3.
  • the pump rinsing zone 4 is followed by a fresh water rinsing zone 5, which likewise has at least one rinsing system 12.
  • the method proposed according to the invention can also be carried out with a continuous-flow washing machine, in particular whose treatment zones for the product to be cleaned are constructed in a combination and / or number differing from the above list.
  • the illustration according to FIG. 1 also shows that the individual treatment zones 2, 3, 4 each have storage tanks 13 which are covered by coarse sieves 15, for example by way of example.
  • the coarse sieves 15 keep coarser impurities away from the cleaning fluid stored in each of the storage tanks 13.
  • Each of the storage tanks 13 is associated with a fine filter 16 and a pump 17 for rinsing the fine filter 16;
  • Each of the storage tanks 13 of the individual treatment zones likewise has an emptying device 18.
  • the circulating pumps 14, the individual treatment zones 2, 3, 4 - are assigned - except the Frischwasserklar mecaniczone.
  • Each of the above-mentioned treatment zones 2, 3, 4 and 5 of the continuous dishwasher has at least one nozzle or nozzle head, which is designed such that all inner surfaces of the respective treatment zones 2, 3, 4 and 5 can be treated with cleaning liquid.
  • the nozzles or the nozzle heads are oriented so that no non-wetted surface sections remain.
  • the inner sides of the doors, which are in the closed state, via which the individual treatment zones are accessible from the outside, are wetted in sufficient quantity with cleaning liquid by the nozzles or the nozzle heads.
  • the nozzles or nozzle heads are either directly to the washing systems 9, 10, 1 1 and 12 of the respective treatment zones 2, 3, 4, 5 attached, or there are special nozzles or washing systems in the treatment zones 2, 3, 4 and 5 installed, with which all inner surfaces of the respective Bctechnischszone can be sprayed.
  • nozzles or washing systems are either supplied directly with cleaning liquid by the respectively installed circulating pump of the respective treatment zone 2, 3, 4 and 5, or special pumps are provided for carrying out the self-cleaning.
  • the inner surfaces of the treatment zones 2, 3, 4 and 5 of the continuous dishwasher are smooth-surfaced, without narrow gaps and corners.
  • the ceiling of each of the storage tank 13 is designed in such a gradient that all remains of each sprayed cleaning liquid can drain well. Any existing Grobsiebsysteme 15 and the bottoms of the storage tank 13 are designed so that all possibly remaining in the storage tanks liquid residues are passed to the respective drain device.
  • the inner sides or rear sides of the doors 24 allowing access to the respective treatment zones 2, 3, 4 and 5 are preferred profiled with a herringbone pattern. As a result, a damming of the liquid film can be achieved on these surfaces, so that loosened dirt can be washed away in an optimal manner in the direction of the tanks.
  • FIGS. 2 a and 2 b show different stages of the sequence of the automatic cleaning method proposed according to the invention in certain operating states.
  • the proposed method according to the invention runs cyclically; the individual steps within a cleaning cycle are indicated by the reference numerals 30 to 39.
  • Each of the storage tanks 13 of the pre-rinsing zone 2 of the main rinsing zone 3 and the fresh water or pump rinsing 4, 5 is associated with an emptying device 18.
  • the storage tank 13 of Pumpenklar Hughes- or Frischwasserklar Hugheszone 4, 5 can be filled by the filling device 21 with fresh water.
  • Each of the tanks 13 are associated with a pre-rinsing system 9 or rinsing systems 10 and 11, wherein the cleaning fluid 22 present in the respective tanks 13 in different degrees of contamination is conveyed via circulating pumps 14 into the respective pre-rinsing or rinsing systems 19 and 11. Furthermore, each of the storage tanks 13 has a coarse screen 15 (not shown) and a fine filter 16. The pumping of cleaning fluid 22 from one of the storage tanks 13 in a respective downstream storage tank 13 via pumps 17th
  • Reference numeral 31 identifies a first step of a cycle of the automated cleaning method proposed according to the invention.
  • the most polluted Vorststank 13 of the pre-rinse 2 is completely emptied.
  • the fine filter 16 is backwashed by means of the pump 17 and passed the present in the fine filter 16 concentrate into the drain.
  • remaining cleaning fluid 22 is about the Entlee- optionally also directed into the drainage device 18.
  • the fine filter 16 in the storage tank 13 of the main washing zone 3 is then backwashed, the concentrate is passed into the storage tank of the pre-rinsing zone 2.
  • the storage tank 13 of the main wash zone 3 is emptied and the storage tank 13, which is associated with the pre-wash zone 2, refilled.
  • the storage tank 13 which is assigned to the pre-rinsing zone 2
  • step 33 the last seen in the transport direction 8 of the storage tank 13, such as the Pumpenklar Hugheszone 4 or the Frischwasserklar Hugheszone 5 associated storage tank 13 is filled with fresh water. This is done via a filling device 21.
  • This water can be preheated, for example, be taken from the on-site network or from the built-in boiler of the continuous dishwasher, optionally it may be enriched with detergent or rinse aid.
  • the renewed cleaning liquid which is located in each of the treatment zones 2, 3, 4 and 5 or each of these storage tanks 13, is then built in for a certain period of time, which may for example be between 60 s and 120 s Pump 14 circulated.
  • a certain period of time which may for example be between 60 s and 120 s Pump 14 circulated.
  • Dirt residues, which are located in the respective zones 2, 3, 4 and 5 are rinsed off by means of the existing rinsing systems 9, 10 and 11 as well as nozzles of all inner surfaces (eg the storage tanks 13 and the inside of the access-enabling door) and collected in the fine filter 16.
  • the storage tanks 13 are, as described above with reference to the method steps 31 and 32, drained one after the other, at the same time the individual fine filters 16 of the individual storage tanks 13 are rinsed, and each of the storage tanks 13 again receives a filling with cleaning fluid 22, which has a lower degree of contamination, from the transport direction 8 see subsequent storage tank 13, compare method step 35.
  • a subsequent method step 36 the cleaning fluid 22 of the storage tanks 13 of the pre-rinse zone 2 and the main washing zone 3 is again circulated and rinsed as described above. Thereafter, the pumping of the cleaning fluid 22 into a storage tank 13 of the preceding in the transport direction 8 zone occurs, with the deviation that now the storage tank 13 of the main wash zone 3 is not refilled according to process step 37. The pumping is repeated until at last only the storage tank 13, which is assigned to the pre-rinsing zone 2, is filled with cleaning fluid 22. This is finally circulated in Aidsschritl 38. In process step 39, the storage tank 13, which is assigned to the pre-rinse zone 2, emptied, there is a final backwashing of the fine filter 16 and a complete emptying of the storage tank 13 of the pre-rinse 2.
  • the first method step 31 can be repeated several times after the filling of the storage tank 13 of the pump rinsing zone 4 or the fresh water rinsing zone 5, before the further steps are followed by a successive emptying of all storage tanks 13 of the continuous rinse machine.
  • inner sides of the access doors 24 can be wetted by means of an independent nozzle head 23 mounted, for example, in a roof surface of one of the treatment zones.
  • the independent nozzle heads 23 may be designed such that they have, for example, a hemispherical nozzle head - as shown in FIG. 3 - and the nozzles are introduced in this way, that wetting of the above the flushing systems 9, 10 and 1 1 lying sides of the treatment zone, ie the ceiling and the inside of the door 24, can always be swept with cleaning fluid.
  • FIG. 4 compare section A-A, it can be seen that at the doors 24, which allow access to the individual treatment zones, a for example oblique profile, i. a profiling 25 - preferably in herringbone form - is arranged.
  • a profiling 25 - preferably in herringbone form - is arranged. This advantageously prevents the accumulation of dirt, promotes its drainage with constant wetting, in particular a round configuration of the bottom of the individual profiles of the profiling 25 prevents drainage of cleaning fluid or a caking or setting of impurities.
  • the Profilicrung 25 is disposed on the inside, for example, each of the doors 24 and may, for example, at an angle - as in Figure 4 - run from 45 °. Of course, other angles of inclination can be selected.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

Procédé d’autonettoyant automatisé d'un lave-vaisselle à avancement automatique pour un élément à nettoyer, comprenant au moins une zone de lavage (2, 3), au moins une zone de rinçage (4, 5) et un dispositif de transport (7). Le dispositif de transport (7) permet l’élément à nettoyer dans une direction de transport (8). Le lave-vaisselle à avancement automatique comprend au moins un filtre fin comportant un dispositif de rétro-rinçage (16) sur au moins un réservoir de stockage (13) et au moins un dispositif (18) de vidange de chacun des réservoirs de stockage (13). Le lave-vaisselle à avancement automatique effectue automatiquement un cycle d’auto-nettoyage dans lequel le liquide de nettoyage (22) qui se trouve dans un des réservoirs de stockage (13), est utilisé plusieurs fois consécutives dans les différentes zones (2, 3, 4 et 5) pour les nettoyer. Le liquide de nettoyage (22) est remis en circulation au moyen de pompes de recirculation (14) dans les réservoirs de stockage respectifs (13) et fourni aux systèmes de pulvérisation (9, 10, 11) qui sont déjà présents dans les zones respectives (2, 3, 4 ou 5), ou à des buses ou à des têtes de buses séparées, pour mouiller le côté intérieur de la zone respective (2, 3, 4 et 5) des surfaces de limitation.
EP08871607A 2008-01-24 2008-10-17 Procédé d'auto-nettoyage d'un lave-vaisselle à avancement automatique et lave-vaisselle à avancement automatique correspondant Active EP2252191B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008005876A DE102008005876B3 (de) 2008-01-24 2008-01-24 Verfahren zur Selbstreinigung einer Durchlaufspülmaschine
PCT/EP2008/008807 WO2009092404A1 (fr) 2008-01-24 2008-10-17 Procédé d’auto-nettoyage d'un lave-vaisselle à avancement automatique et lave-vaisselle à avancement automatique correspondant

Publications (2)

Publication Number Publication Date
EP2252191A1 true EP2252191A1 (fr) 2010-11-24
EP2252191B1 EP2252191B1 (fr) 2013-01-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08871607A Active EP2252191B1 (fr) 2008-01-24 2008-10-17 Procédé d'auto-nettoyage d'un lave-vaisselle à avancement automatique et lave-vaisselle à avancement automatique correspondant

Country Status (6)

Country Link
US (1) US8491723B2 (fr)
EP (1) EP2252191B1 (fr)
CN (1) CN101925322B (fr)
DE (1) DE102008005876B3 (fr)
RU (1) RU2434570C1 (fr)
WO (1) WO2009092404A1 (fr)

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CN112674675A (zh) * 2019-10-18 2021-04-20 宁波方太厨具有限公司 一种清洗机的自清洗方法

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Also Published As

Publication number Publication date
EP2252191B1 (fr) 2013-01-23
DE102008005876B3 (de) 2009-04-30
RU2434570C1 (ru) 2011-11-27
US8491723B2 (en) 2013-07-23
CN101925322B (zh) 2012-09-05
WO2009092404A1 (fr) 2009-07-30
CN101925322A (zh) 2010-12-22
US20110017234A1 (en) 2011-01-27

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