EP2022385B1 - Lave-vaisselle - Google Patents
Lave-vaisselle Download PDFInfo
- Publication number
- EP2022385B1 EP2022385B1 EP07015582A EP07015582A EP2022385B1 EP 2022385 B1 EP2022385 B1 EP 2022385B1 EP 07015582 A EP07015582 A EP 07015582A EP 07015582 A EP07015582 A EP 07015582A EP 2022385 B1 EP2022385 B1 EP 2022385B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- sedimentation chamber
- pump
- outlet
- washing liquid
- 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.)
- Not-in-force
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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
- A47L15/42—Details
- A47L15/4202—Water filter means or strainers
- A47L15/4208—Arrangements to prevent clogging of the filters, e.g. self-cleaning
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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
- A47L15/4246—Details of the 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
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4219—Water recirculation
- A47L15/4221—Arrangements for redirection of washing water, e.g. water diverters to selectively supply the spray arms
Definitions
- the invention concerns a dishwasher, comprising a first wash circulation system with a wash circulation pump to circulate washing liquid from a sump to at least one spray device arranged in a wash tank.
- washing liquid is normally drawn from a sump at the bottom of a wash tank, pumped by a circulation pump into spray arms distributing the wash liquid within the wash tank to remove soils from dishes located in dish baskets in the tank.
- a filter screen or filter mesh is deposited on the outlet side of the circulation pump.
- a fine filter or even a micro fine filter can be used.
- backwash jets are directed against the filter in an attempt to clear the filter and prevent clogging.
- the circulation pump itself needs to be actuated so that the backwash jets work against a high pressure so that cleaning may be incomplete.
- behind a clogged filter increasing pressure builds up so that soil is pressed into the filter and embedding itself fixedly, so that it cannot be easily removed.
- a filter in the sump normally comprising a fine filter surrounding the final drain inlet where only a coarse filter is provided.
- Backwashing or cleaning filter is very complex and sophisticated in such a case, so that usually no micro-fine filters are used. Water or washing liquid passing the circumferential fine filter is recirculated again by the circulation pump.
- filter clogging can adversely effect the dishwashers' cleaning ability, causing poor washability and indirectly increased water and energy consumption.
- a dishwasher of the above mentioned type wherein a second circulation system comprising a further pump and a filtration device is provided to filter washing liquid independently from actuation of the circulation pump of the first circulation system, is described in document EP-A-0 990 413 .
- a second circulation system is provided, which is dedicated to the process of filtering the washing liquid.
- the circulation pump of the first circulation system and the further pump driving the second circulation system can be controlled independently. Filtration and filter cleaning no longer effect the washing cycle itself, so that the freedom for cycle design is increased. Phases with 100 % filtration and/or 100 % filter cleaning are now possible.
- Another advantage is that a flat sump design can be achieved, since the filtration device no longer needs to be positioned in the sump itself, as well as backwashing devices. A reduction of the total water volume in the sump is possible.
- the filtration device can comprise a micro fine filter and/or a fine filter. 100 % micro fine filtering is now possible without the risk of adversely effecting the dishwashers cleaning ability.
- At least one filter of the filtration device forms part of a vertical wall of the wash tank.
- This filter can for example be a filter screen or a filter mesh and is preferably a micro fine filter. In this manner, a visible clue to the improved filtering is given to the customer. Additionally, easy replacement of the filter is possible and space is effectively used.
- a device for backwashing the filter can advantageously be provided in the wash tank.
- the device for backwashing the filter comprises nozzles located at the outwardly facing ends of at least one spray arm.
- the device for backwashing the filter is preferably driven by the circulation pump of the first circulation system, while the further pump is not active. Cleaning of the filter forming part of the wall of the wash tank can this manner be effected at the same time the dishes are washed.
- Soil particles therefore do not tend to be embedded into the filter and can for example easily be backwashed by a device for backwashing the filter.
- the first circulation system also comprises a filtration device.
- this additional filtration device will only comprise coarse filters and/or fine filters, so that micro fine filtering remains the domain of the second circulation system.
- Such an additional filtration device or part of the filtration device of the second circulation system may be located in the sump.
- the already known fine filter placed in the sump can be used for the first as well as for the second circulation system.
- the additional filtration device or the part of the filtration device located in the sump only apply to the first or the second circulation system.
- Such an additional filtration device, or part of the filtration device can, if assigned to the second circulation system, act as a prefiltering stage for a micro fine filter, for example forming part of the wall of the wash tank.
- the further pump is the drain pump.
- the drain pump not only drives the draining of water out of the dishwasher, but also the second circulation system.
- a control unit of the dishwasher may then independently control operation of the drain pump so that either draining or filtration/cleaning of the filter or the filters is effected.
- a backflow valve can be provided upstream of the drain pump.
- the second circulation system comprises a sedimentation chamber located downstream of the drain pump and having a filter, in particular a micro fine filter, in its upper part.
- a filter in particular a micro fine filter
- water is pumped into the sedimentation chamber by the drain pump, at a pressure such that the water level just reaches the filter arranged in the upper part of the sedimentation chamber wall.
- the filter can, like already mentioned, form a part of the wall of the wash tank.
- the soil particles, which cannot pass the filter remain in the sedimentation chamber.
- washing liquid may remain in the sedimentation chamber and the soil particles slowly begin to sediment, i.e. sink down to the bottom of the sedimentation chamber, where they can be simply drained away.
- the dishwasher may comprise a junction having at least one inlet connected to the outlet side of the drain pump and at least two outlets, wherein a first outlet is connected to the sedimentation chamber and a second outlet is connected to a drain tube for final drainage of washing liquid.
- a u-like bend of the drain tube for finally draining washing liquid can be located higher than the highest point of the second circulation system, in particular the sedimentation chamber.
- washing liquid is pumped by the drain pump at a low pressure, the water level can only be raised to reach the filter located in the sedimentation chamber, but no water is drained. If driven at a higher speed, water can be drained. Still, the possibility exists that washing liquid may flow back into the wash tank during draining.
- a switch is provided at the junction, wherein the switch is adapted to selectively connect at least the inlet and the first outlet and the inlet and the second outlet.
- the at least two positions of the switch correspond to "filtration", i.e. use of the second circulation system, and "draining". If the switch is in a first position, connecting the inlet with the first outlet, washing liquid is circulated through the second circulation system, passing the sedimentation chamber and the filter. Please note that when the pump is turned off, soil particles begin to sink down to the bottom of the sedimentation chamber, which can preferably be adjacent to the junction and the switch. To drain water from the dishwasher, the switch is in the second position, connecting the inlet with the second outlet. On actuation of the pump, water is drained from the dishwasher.
- water can be reloaded from the sedimentation chamber by turning the pump off and switching the switch back to the first position, so that water and soil particles residing at least in the lower part of the sedimentation chamber flow into the tub section between the backflow valve or the drain pump and the junction.
- the switch is actuated into the second position and the soil-laden washing liquid can easily be drained.
- this process can be repeated one or more times. In this manner, at least in multiple steps, the sedimentation chamber can be fully drained. Even heavy dirt can be handled. If the filter of the sedimentation chamber is formed as part of the wall of the wash tank and a device for backwashing the filter is used to clean the filter, the water accumulating in the sedimentation chamber can also be drained in this manner.
- an outlet in the upper part of the sedimentation chamber can be connected to the drain'tube such that an overflow for a completely filled sedimentation chamber is formed.
- the drain pump is controllable to effect a tangential cleaning of the filter. This means, the drain pump is driven at a high speed so that the water passes tangentially along the filter in the sedimentation chamber, taking along the soil particles which are drained through the overflow and subsequently through the drain tube.
- a backflow valve can be provided downstream of the outlet of the sedimentation chamber.
- the junction can comprise a second inlet connected to an outlet in the upper part of the sedimentation chamber such that an overflow for a completely filled sedimentation chamber is formed and the switch can be actuated so that the first inlet is connected to the first outlet and at the same time the second inlet is connected to the first outlet, and so that the first inlet is connected to the second outlet.
- the first position of the switch, connecting the first inlet to the first outlet and the second inlet to the second outlet allows for filtration of the washing liquid at a low speed of the drain pump. Even if the filter is clogged in such a situation, overflowing washing liquid can simply be drained through the final drain tube.
- washing liquid is directly drained to the drain tube. If the switch is in the second position, connecting the first inlet to the second outlet, washing liquid can be directly be drained.
- the switch can additionally be actuated so that the first inlet is connected to the first outlet and at the same time the second inlet and the second outlet are closed.
- This third position is especially preferable if a sensor device adapted to sense a clogging of the filter is used, for example a hydrostatic sensor connected to the upper end of the sedimentation chamber. If during filtration of the washing liquid the filter is clogged, washing liquid filling the overflow is not drained,through the drain tube, but confined to the overflow so that a strong increase in pressure can be measured. Adequate measures can be taken in such- a case, like notifying the user that the filter is to be cleanned. Cleaning or draining of the filter is again effected in the first position of the switch, when the second inlet is connected to the second outlet.
- the further pump can be an additional pump.
- the dishwasher comprises the circulation pump of the first circulation system, the drain pump and an additional pump dedicated to drive the second circulation system.
- the additional pump may also' draw washing liquid to be filtered from the sump.
- the additional pump draws washing liquid from an area of the sump separated by a filter, in particular a fine filter, from which area also the circulation pump draws washing liquid.
- both circulation systems share the fine filter, while the second circulation system's filtration device preferably comprises a micro fine filter.
- the outlet of the additional pump can be connected to an inlet located in the upper part of a sedimentation chamber, wherein a part of the sedimentation chamber's wall is formed as a filter, in particular a micro fine filter, and the lower part of the sedimentation chamber has an outlet connected to a feeding tube leading from the sump to a drain pump, the backflow of water from the sedimentation chamber to the sump being prevented by a backflow valve.
- washing liquid can be fed into the sedimentation chamber from its upper part.
- the.filter which may be formed as a part of the wall of the wash tank, filtered washing liquid can re-enter the wash tank.
- the lower part of the sedimentation chamber remains filled with washing liquid, so that soil particles sediment, i.e. sink downwards.
- the soil filtered out during the filtration of the washing liquid can now easily be drained by actuation of the drain pump through the feeding tube, so that only a small amount of water needs to be drained.
- a device for backwashing the filter is provided in the wash tank, washing liquid or water from the backwash jets cleaning the filter can also be easily drained, removing all the soil from the sedimentation chamber and the filter.
- an u-like bend of the drain tube for finally draining washing liquid can be located higher than the highest point of the second circulation system, in particular the sedimentation chamber.
- the additional pump in the following also named filter pump, is driven at a speed such that washing liquid enters the sedimentation chamber and passes through the filter, but is not drained through the drain tube.
- a flat sump can be realised, possibly comprising a flat fine filter acting as a pre-filtering stage for the filtration system.
- a two layer filter can be used in the wall of the sedimentation chamber.
- the water would first pass a fine filter and afterwards a micro fine filter to prevent clogging of the micro fine filter by bigger soil particles.
- a sensor device adapted to sense a clogging of the filter can be provided.
- This sensor device can be hydrostatic sensor, which, in case a sedimentation chamber is provided, can be connected to the upper end of the sedimentation chamber.
- clogging of the filter can be detected in such a configuration and countermeasures can be taken and/or a warning can be output to a user to exchange or manually clean the filter.
- Fig. 1 shows a dishwasher 1 according to the first variant of the first embodiment of the invention. It comprises a wash tank 2 wherein soiled dishes can be loaded in dish baskets (not shown) to be washed. Two spray arms 3, 4 are provided in the wash tank 2. During operation of the dishwasher 1, washing liquid is drawn from a sump 5 by a circulation pump 6 and recirculated into the wash tank 2 via the spray arms 3, 4. While circulating in this first circulation system 7, the washing liquid passes a flat fine filter 8 located in the sump 5.
- the fine filter 8 is part of a filtration device 9 of the first circulation system 7. However, filtration in the first circulation system 7 depends on the actuation of the circulation pump 6, and no micro fine filtering is available.
- a coarse filter 25 can be provided in the sump 5 where washing liquid is drained.
- the dishwasher 1 comprises a second circulation system 10 comprising a filtration device 11 with a micro fine filter 12 to filter washing liquid independently from actuation of the circulation pump 6 of the first circulation system 7.
- the second circulation system 10 is driven by the drain pump 13, by which usually water is drained from the sump 5 to a drain tube 14.
- the dishwasher 1 comprises a junction 15 with a switch 16.
- the junction 15 has one inlet connected to the outlet side of the drain pump 13 and two outlets, namely a first outlet connected to a sedimentation chamber 17 and a second outlet connected to the drain tube 14.
- the switch 16 can be actuated between two positions.
- the inlet In a first position, the inlet is connected to a first outlet, in a second position the inlet is connected to the second outlet. Also provided are backflow valves 18 preventing the flowback of water into the sump 5 or the sedimentation chamber 17. Please note that the narrow, lower portion 24 is also a part of the sedimentation chamber 17.
- the micro fine filter 12 is arranged so that it forms part of a vertical wall 19 of the wash tank 2. Washing liquid passing through the micro fine filter 12 from the sedimentation chamber 17 is directly recirculated into the wash tank 2.
- the micro fine filter 12 can easily be cleaned by backwashing using a device 20 for backwashing the filter 12 located in the wash tank 2.
- the device 20 comprises nozzles 21 arranged circumferentially around the upper spray arm 3 facing outwardly, so that backwash jets ejected from the nozzles 21 hit the micro fine filter 12, thereby cleaning it.
- nozzles aimed at the filter 12 can be provided at the lower spray arm 4 or other spray devices.
- the switch 16 is actuated into the first position, connecting the inlet to the first outlet and therewith the sedimentation chamber 17.
- the drain pump 13 is now actuated at a speed which raises the washing liquid level in the sedimentation chamber to a height in which washing liquid can just pass the filter 12. In this manner, the pressure exerted on the filter 12 is as low as possible, preventing soil particles from being pressed into the filter mesh or screen. This means, soil particles at or in the filter 12 can usually still be removed by actuation of the device 20 for backwashing the filter 12.
- the drain pump 13 is stopped and the switch 16 is actuated to the second position, now connecting the inlet to the second outlet and therewith the drain tube 14. Meanwhile, the soil particles in the remaining column of washing liquid filling the sedimentation chamber 17 begin to sink down to the bottom of the sedimentation chamber 17, i.e. the lower portion 24. There, the sedimented particles remain close to the switch 16.
- washing liquid can be drained from the sump 5 to the drain tube 14.
- the portion 22 between the sump-side backflow valve 18 and the switch 16 can at least partly be emptied.
- the switch 16 is again actuated into the first position so that at least part of the washing liquid column in the sedimentation chamber 17, in particular the lower part containing the soil particles, flows into the portion 22.
- the switch 16 is then again actuated into the second position, so that the washing liquid reloaded from the sedimentation chamber 17 containing the soil particles can be drained through the drain tube 14.
- This process of draining the sedimentation chamber 17 can, if required, be repeated one or several times, for example, if it cannot be completely drained in one step.
- the switch is again actuated into the first position, washing liquid from the sedimentation chamber 17 containing soil particles is drained into the portion 22, the switch is again actuated into the second position, and the washing liquid is drained.
- the micro fine filter 12 as part of the wall 19 of the wash tank 2 can be seen by the user looking into the dishwasher, assuring him of a good cleaning performance wherein soil particles are less often recirculated through the first circulation system 7. Additionally, the micro fine filter 12 can easily be disassembled and cleaned by hand.
- the dishwasher also comprises a hydrostatic sensor 23, located at the upper end of the sedimentation chamber 17.
- the hydrostatic sensor 23 measures a high pressure and therefore countermeasures and/or warnings to the user can be effected.
- Fig. 2 shows a dishwasher 1' according to the second variant of the first embodiment, wherein like parts are designated by like numerals.
- the first circulation system 7 and the part of a filter device 9 located in the sump 5 are similar in all embodiments, thus, the description is omitted in the following.
- the' drain pump 13 also acts as a further pump, having a switch 16 at a junction 15 downstream.
- an outlet 26 is provided in the upper part of' the sedimentation chamber 17. This outlet 26 is connected to the final drain tube 14 so that an overflow 27 of a completely filled sedimentation chamber 17 is formed.
- a backflow valve 28 is' provided along the overflow 27.
- the overflow 27 may be used in a tangential cleaning step for the filter 12.
- the switch 16 is in a first position, so that the inlet on the drain pump 13 side and the first outlet leading to the sedimentation chamber are connected.
- the drain pump 13 is then driven at a high speed, so that washing liquid passes tangentially upwards along the filter 12, which again can be a micro fine filter, taking with it soil particles sticking to the filter or sedimented in the sedimentation chamber 17.
- the soil-laden washing liquid then passes through the overflow 27 and is discharged through the drain tube 14.
- a device 20 for backwashing the filter 12 is in principle not needed, but may additionally be provided.
- soil accumulated in the lower portion 24 of the sedimentation chamber 17 can also be drained using the same process as described with reference to fig. 1 , i.e. at least partly emptying the section 22, moving the switch 16 to the first position, moving the switch 16 to the second position and again driving the pump.
- a third variant of the first embodiment of a dishwasher 1'' according to the invention is shown in fig. 3 .
- the difference to the variant in fig. 2 is that in this case a second inlet connected to the overflow 27 is provided at the junction 15 and a different switch 16' is used which can be actuated into three positions.
- the switch 16' comprises a rotatable actuator 29 having an expanded section 30 at one side. This configuration allows to dispense with the backflow valve 28.
- the switch 16' can be actuated into three positions shown in fig. 5 , each corresponding to a mode of function of the dishwasher 1''.
- a first position I the first inlet corresponding to the section 22 is connected to the first outlet corresponding to the sedimentation chamber 17, while the second inlet corresponding to the overflow 27 and the second outlet corresponding to the drain tube 14 are blocked.
- the filter 12 of the filtration device 11 and the sedimentation chamber 17 are used for filtration of the washing liquid in the second circulation system 10. Washing liquid is pumped into the sedimentation chamber 17 by the drain pump 13 at a low speed such that at nearly zero pressure washing liquid may pass through the filter 12 into the wash tank 2, thereby being filtered.
- a hydrostatic sensor 23 can again be used in this variant to detect clogging of the filter 12.
- a first inlet corresponding to the section 22 is connected to the second outlet corresponding to the drain tube 14. In this position, washing liquid can be directly drained from the dishwasher 1''.
- the third position III connects a first inlet corresponding to the section 22 to the first outlet corresponding to the sedimentation chamber 17 and at the same time the second inlet corresponding to the overflow 27 to the second outlet corresponding to the drain tube 14.
- a tangential cleaning of the filter 112 as described above with reference to fig. 2 can be effected while the drain pump 13 runs at a high speed. Washing liquid-is pumped from the sump 5 through the section 22, then through switch 16' into the sedimentation chamber 17, passing the filter 12. Afterwards, the washing liquid passes the overflow 27, again flows through switch 16' to be drained through a drain tube 14.
- fig. 6 shows a dishwasher 1''' according to the second embodiment of the invention.
- the dishwasher 1''' comprises a first circulation system 7 as described with respect to fig. 1 as well as a drain pump 13 drawing washing liquid from a sump 5 to discharge it through a drain tube 14.
- a fine filter 8 and a coarse filter 25 are provided in the sump.
- the second circulation system 10 for filtration is not driven by the drain pump 13, but by an additional pump or filter pump 30.
- the filter pump 30 draws water filtered by the flat fine filter 8 from the sump 5 through a tube 31 to the upper end of a sedimentation chamber 17.
- a micro fine filter 12 forms a boundary of the sedimentation chamber 17 in its upper part.
- the sedimentation chamber 17 is connected to a feeding tube 32 for the drain pump 13.
- the u-like bend 33 of the drain tube 14 is located.higher than the upper end of the sedimentation chamber 17.
- the filter pump 30 is driven at a low speed so that washing liquid may enter the sedimentation chamber 17 from above, but no washing liquid is drained from the dishwasher 1''' through the drain tube 14.
- soil particles sedimented at the bottom of the sedimentation chamber 17 are not swirled up again in the direction of the filter 12. Draining of the sedimentation chamber 17 is easily effected by actuation of the drain pump 13.
- Backflow valves 33, 18 prevent washing liquid from flowing back to the sedimentation chamber 17 or the sump 5.
- Tangential cleaning of the filter 12 can also be effected by running the filter pump 30 at a higher speed so that washing liquid not only enters the sedimentation chamber 17, but is also drained through the drain tube 14. Additionally or alternatively, cleaning of the filter 12 can also be effected using a device 20 for backwashing the filter 12 as described with respect to fig. 1 .
- both the circulation pump 6 and the additional pump 30 draw washing liquid from behind the flat fine filter 8 in the sump 5.
- the filter pump 30 may also draw washing liquid from the feeding tube 32 upstream the backflow valve 33.
- washing liquid is not yet fine filtered before entering the sedimentation chamber 17.
- a two-layer filter 12' is used instead of the micro fine filter 12.
- a first layer of the filter 12' acts as a fine filter
- a second layer acts as a micro fine filter.
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- Cleaning By Liquid Or Steam (AREA)
Claims (16)
- Lave-vaisselle comprenant un premier système de circulation de lavage (7) avec une pompe de circulation de lavage (6) pour faire circuler un liquide de lavage d'un puisard (5) à au moins un dispositif de projection (3, 4) agencé dans une cuve de lavage (2), dans lequel un deuxième système de circulation (10) comprenant une autre pompe et un dispositif de filtration (11) est prévu pour filtrer le liquide de lavage indépendamment de l'actionnement de la pompe de circulation (6) du premier système de circulation (7), caractérisé en ce qu'au moins un filtre (12) du dispositif de filtration (11) fait partie d'une paroi verticale (19) de la cuve de lavage (2).
- Lave-vaisselle selon la revendication 1, caractérisé en ce que le dispositif de filtration (11) comprend un filtre microfin (12) et/ou un filtre fin.
- Lave-vaisselle selon la revendication 1 ou 2, caractérisé en ce qu'un dispositif (20) pour le lavage à contre-courant (12) est réalisé dans la cuve de lavage (2).
- Lave-vaisselle selon la revendication 3, caractérisé en ce que le dispositif (20) pour le lavage à contre-courant du filtre (12) comprend des buses (21) situées aux extrémités orientées vers l'extérieur d'au moins un bras de projection (3, 4).
- Lave-vaisselle selon l'une des revendications précédentes, caractérisé en ce que le premier système de circulation (7) comprend également un dispositif de filtration (9).
- Lave-vaisselle selon l'une des revendications précédentes, caractérisé en ce qu'un dispositif de filtration additionnel (9) ou une partie du dispositif de filtration (11) est située dans le puisard (5).
- Lave-vaisselle selon l'une quelconque des revendications précédentes, caractérisé en ce que l'autre pompe est la pompe de drainage (13), en particulier où la vanne de lavage à contre-courant (18) est réalisée en amont de la pompe de drainage (13).
- Lave-vaisselle selon la revendication 7, caractérisé en ce que le second système de circulation (10) comprend une chambre de sédimentation (17) située en aval de la pompe de drainage (13) et comportant un filtre (12), en particulier un filtre microfin (12), dans sa partie supérieure.
- Lave-vaisselle selon la revendication 8, caractérisé en ce que le lave-vaisselle (1, 1', 1") comprend une jonction (15) ayant au moins une entrée reliée au côté sortie de la pompe de drainage (13) et au moins deux sorties, où une première sortie est reliée à la chambre de sédimentation (17) et une seconde sortie est reliée à un tube de drainage (14) pour le drainage final du liquide de lavage, en particulier où un pliage en forme de U (34) du tube de drainage (14) pour le drainage final du liquide de lavage est situé plus haut que le point le plus élevé du deuxième système de circulation (10), en particulier la chambre de sédimentation (17).
- Lave-vaisselle selon la revendication 9, caractérisé en ce qu'un commutateur (16, 16') est réalisé à la jonction (15), où le commutateur (16, 16') est apte à connecter sélectivement au moins l'entrée et la première sortie et l'entrée et la seconde sortie.
- Lave-vaisselle selon la revendication 10, caractérisé en ce qu'une sortie dans la partie supérieure de la chambre de sédimentation (17) est reliée au tube de drainage (14) de sorte qu'un débordement (27) pour une chambre de sédimentation complètement remplie (17) est formé, en particulier où la pompe de drainage (13) peut être commandée pour effectuer un nettoyage tangentiel du filtre (12) et/ou où une vanne de reflux (28) est réalisée en aval de la sortie de la chambre de sédimentation (17).
- Lave-vaisselle selon la revendication 10, caractérisé en ce que la jonction (15) comprend une seconde entrée reliée à une sortie dans la partie supérieure de la chambre de sédimentation (17) de telle sorte qu'un débordement (27) pour une chambre de sédimentation complètement remplie (17) est formé, et le commutateur (16') peut être actionné de telle sorte que la première entrée est reliée à la première sortie et en même temps la seconde entrée est reliée à la première sortie, et de sorte que la première entrée est reliée à la seconde sortie, en particulier où le commutateur (16') peut être actionné additionnellement de telle sorte que la première entrée est reliée à la première sortie et en même temps la seconde entrée et la seconde sortie sont fermées.
- Lave-vaisselle selon l'une des revendications 1 à 6, caractérisé en ce que l'autre pompe est une pompe additionnelle (30).
- Lave-vaisselle selon la revendication 13, caractérisé en ce que la pompe additionnelle (30) aspire un liquide de lavage à filtrer du puisard (5), et/ou la pompe additionnelle (30) aspire le liquide de lavage d'une zone du puisard (5) séparée par un filtre (8), en particulier un filtre fin (8), zone de laquelle également la pompe de circulation (6) aspire le liquide de lavage.
- Lave-vaisselle selon la revendication 14, caractérisé en ce que la sortie de la pompe additionnelle (30) est reliée à une entrée située dans la partie supérieure d'une chambre de sédimentation (17), où une partie de la paroi de la chambre de sédimentation est réalisée comme un filtre (12), en particulier un filtre microfin (12), et la partie inférieure de la chambre de sédimentation (17) possède une sortie reliée à un tube d'amenée (32) menant du puisard (5) à une pompe de drainage (13), le reflux du liquide de lavage de la chambre de sédimentation (17) au puisard (5) étant empêché par une vanne de reflux (33), en particulier où un pliage en forme de U (34) du tube de drainage (14) pour le drainage final du liquide de lavage est situé plus haut que le point le plus élevé du second système de circulation (10), en particulier la chambre de sédimentation (17).
- Lave-vaisselle selon l'une des revendications précédentes, caractérisé en ce qu'un dispositif de capteur apte à détecter un bouchage du filtre (13) est réalisé, en particulier où le dispositif de capteur est un capteur hydrostatique (23), en particulier où le second système de circulation (10) comprend une chambre de sédimentation (17), où le capteur (23) est relié à l'extrémité supérieure de la chambre de sédimentation (17).
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07015582A EP2022385B1 (fr) | 2007-08-08 | 2007-08-08 | Lave-vaisselle |
EP11003775A EP2359734A1 (fr) | 2007-08-08 | 2007-08-08 | Lave-vaisselle |
AT07015582T ATE510487T1 (de) | 2007-08-08 | 2007-08-08 | Geschirrspüler |
PL07015582T PL2022385T3 (pl) | 2007-08-08 | 2007-08-08 | Zmywarka |
CN2008801024754A CN101778590B (zh) | 2007-08-08 | 2008-07-16 | 洗碗机 |
US12/672,334 US20110197934A1 (en) | 2007-08-08 | 2008-07-16 | Dishwasher, |
RU2010108337/12A RU2451480C2 (ru) | 2007-08-08 | 2008-07-16 | Посудомоечная машина |
KR1020107003276A KR20100041834A (ko) | 2007-08-08 | 2008-07-16 | 식기 세척기 |
PCT/EP2008/005802 WO2009018903A1 (fr) | 2007-08-08 | 2008-07-16 | Lave-vaisselle |
CA2695918A CA2695918A1 (fr) | 2007-08-08 | 2008-07-16 | Lave-vaisselle |
AU2008286021A AU2008286021B2 (en) | 2007-08-08 | 2008-07-16 | Dishwasher |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07015582A EP2022385B1 (fr) | 2007-08-08 | 2007-08-08 | Lave-vaisselle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2022385A1 EP2022385A1 (fr) | 2009-02-11 |
EP2022385B1 true EP2022385B1 (fr) | 2011-05-25 |
Family
ID=38871562
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07015582A Not-in-force EP2022385B1 (fr) | 2007-08-08 | 2007-08-08 | Lave-vaisselle |
EP11003775A Withdrawn EP2359734A1 (fr) | 2007-08-08 | 2007-08-08 | Lave-vaisselle |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11003775A Withdrawn EP2359734A1 (fr) | 2007-08-08 | 2007-08-08 | Lave-vaisselle |
Country Status (10)
Country | Link |
---|---|
US (1) | US20110197934A1 (fr) |
EP (2) | EP2022385B1 (fr) |
KR (1) | KR20100041834A (fr) |
CN (1) | CN101778590B (fr) |
AT (1) | ATE510487T1 (fr) |
AU (1) | AU2008286021B2 (fr) |
CA (1) | CA2695918A1 (fr) |
PL (1) | PL2022385T3 (fr) |
RU (1) | RU2451480C2 (fr) |
WO (1) | WO2009018903A1 (fr) |
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US8627832B2 (en) | 2010-12-13 | 2014-01-14 | Whirlpool Corporation | Rotating filter for a dishwashing machine |
US8746261B2 (en) | 2009-12-21 | 2014-06-10 | Whirlpool Corporation | Rotating drum filter for a dishwashing machine |
US9687135B2 (en) | 2009-12-21 | 2017-06-27 | Whirlpool Corporation | Automatic dishwasher with pump assembly |
KR101699976B1 (ko) * | 2010-09-02 | 2017-01-25 | 엘지전자 주식회사 | 식기 세척기 및 그 제어방법 |
US9668636B2 (en) | 2010-11-16 | 2017-06-06 | Whirlpool Corporation | Method and apparatus for dishwasher with common heating element for multiple treating chambers |
US9113766B2 (en) | 2010-11-16 | 2015-08-25 | Whirlpool Corporation | Method and apparatus for dishwasher with common heating element for multiple treating chambers |
US9034112B2 (en) | 2010-12-03 | 2015-05-19 | Whirlpool Corporation | Dishwasher with shared heater |
US8733376B2 (en) | 2011-05-16 | 2014-05-27 | Whirlpool Corporation | Dishwasher with filter assembly |
US9107559B2 (en) | 2011-05-16 | 2015-08-18 | Whirlpool Corporation | Dishwasher with filter assembly |
US9005369B2 (en) | 2011-06-20 | 2015-04-14 | Whirlpool Corporation | Filter assembly for a dishwasher |
US9010344B2 (en) | 2011-06-20 | 2015-04-21 | Whirlpool Corporation | Rotating filter for a dishwashing machine |
US20120318296A1 (en) | 2011-06-20 | 2012-12-20 | Whirlpool Corporation | Ultra micron filter for a dishwasher |
US9265401B2 (en) | 2011-06-20 | 2016-02-23 | Whirlpool Corporation | Rotating filter for a dishwashing machine |
US9861251B2 (en) | 2011-06-20 | 2018-01-09 | Whirlpool Corporation | Filter with artificial boundary for a dishwashing machine |
US9603501B2 (en) | 2011-09-02 | 2017-03-28 | Ecolab Usa Inc. | Use of recycled wash and rinse water for the pre-rinse operation of dishes |
US9301667B2 (en) | 2012-02-27 | 2016-04-05 | Whirlpool Corporation | Soil chopping system for a dishwasher |
US9730570B2 (en) | 2012-05-30 | 2017-08-15 | Whirlpool Corporation | Reduced sound with a rotating filter for a dishwasher |
US9237836B2 (en) | 2012-05-30 | 2016-01-19 | Whirlpool Corporation | Rotating filter for a dishwasher |
US9833120B2 (en) | 2012-06-01 | 2017-12-05 | Whirlpool Corporation | Heating air for drying dishes in a dishwasher using an in-line wash liquid heater |
US9451862B2 (en) | 2012-06-01 | 2016-09-27 | Whirlpool Corporation | Dishwasher with unitary wash module |
US9532700B2 (en) | 2012-06-01 | 2017-01-03 | Whirlpool Corporation | Dishwasher with overflow conduit |
US9554688B2 (en) | 2012-10-23 | 2017-01-31 | Whirlpool Corporation | Rotating filter for a dishwasher and methods of cleaning a rotating filter |
WO2015035607A1 (fr) * | 2013-09-13 | 2015-03-19 | Dow Global Technologies Llc | Machine à laver comprenant un module de filtre intégré |
CN104622405B (zh) * | 2013-11-11 | 2017-06-23 | 美的集团股份有限公司 | 洗碗机及其过滤系统、排渣装置 |
US9968236B2 (en) * | 2014-09-16 | 2018-05-15 | Haier Us Appliance Solutions, Inc. | Dishwasher appliance and a method for operating the same |
CN104563228B (zh) * | 2015-01-16 | 2016-07-06 | 长兴晨怡电子器材有限公司 | 多功能节水式集成水槽 |
WO2017036513A1 (fr) | 2015-08-31 | 2017-03-09 | Electrolux Appliances Aktiebolag | Dispositif de distribution de détergent pour un lave-vaisselle |
EP3364847B1 (fr) | 2015-10-21 | 2021-07-21 | Illinois Tool Works Inc. | Système et procédé de ralenti de lave-vaisselle |
WO2017114559A1 (fr) * | 2015-12-29 | 2017-07-06 | Arcelik Anonim Sirketi | Lave-vaisselle |
CN108185954B (zh) * | 2018-01-17 | 2023-10-03 | 佛山市顺德区美的洗涤电器制造有限公司 | 洗碗机 |
WO2019141136A1 (fr) | 2018-01-17 | 2019-07-25 | 佛山市顺德区美的洗涤电器制造有限公司 | Ensemble vanne de dérivation, lave-vaisselle et appareil électroménager |
IT201800001812A1 (it) * | 2018-01-25 | 2019-07-25 | Candy Spa | Metodo per valutare automaticamente il grado di pulizia del sistema di filtraggio in una macchina lavastoviglie. |
CN108553053B (zh) * | 2018-02-06 | 2023-12-29 | 宁波美高厨具有限公司 | 一种家用水槽洗碗机 |
US10791905B2 (en) * | 2019-02-08 | 2020-10-06 | Haier Us Appliance Solutions, Inc. | Methods for determining operation mode of dishwasher appliance fluid circulation system |
KR20220078337A (ko) * | 2020-12-03 | 2022-06-10 | 삼성전자주식회사 | 식기 세척기 및 식기 세척기용 물탱크 |
CN113940601A (zh) * | 2021-10-14 | 2022-01-18 | 佛山市顺德区美的洗涤电器制造有限公司 | 洗碗机及其控制方法、装置及存储介质 |
DE102022117810A1 (de) * | 2022-07-15 | 2024-01-18 | Illinois Tool Works Inc. | Spülmaschine mit schmutzaustragsystem |
DE102022004275A1 (de) * | 2022-11-19 | 2024-05-29 | Robert Simmoteit | Filtervorrichtung und Dreharmantrieb |
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SU1604346A1 (ru) * | 1989-02-03 | 1990-11-07 | Э.М.Константинов | Посудомоечна машина |
CN2183154Y (zh) * | 1993-05-10 | 1994-11-23 | 陈德录 | 全自动洗碗洗菜机 |
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EP0990413B1 (fr) * | 1998-09-29 | 2003-12-17 | CANDY S.p.A. | Procédé et dispositif pour filtrer le liquide de lavage et/ou de rinçage dans un lave vaisselle |
US6418943B1 (en) * | 1999-06-04 | 2002-07-16 | Whirlpool Corporation | Wash liquid circulation system for a dishwasher |
US7472712B2 (en) * | 2003-09-05 | 2009-01-06 | Whirlpool Corporation | Dishwasher filter |
DE102004062242A1 (de) * | 2004-12-23 | 2006-07-13 | BSH Bosch und Siemens Hausgeräte GmbH | Wasserführendes Haushaltsgerät und Verfahren zum Betreiben desselben |
CN100536756C (zh) * | 2005-06-24 | 2009-09-09 | 海尔集团公司 | 洗碗机水路循环系统 |
CN2873093Y (zh) * | 2005-08-10 | 2007-02-28 | Bsh博施及西门子家用器具有限公司 | 洗碗机、特别是家用洗碗机 |
-
2007
- 2007-08-08 EP EP07015582A patent/EP2022385B1/fr not_active Not-in-force
- 2007-08-08 EP EP11003775A patent/EP2359734A1/fr not_active Withdrawn
- 2007-08-08 PL PL07015582T patent/PL2022385T3/pl unknown
- 2007-08-08 AT AT07015582T patent/ATE510487T1/de not_active IP Right Cessation
-
2008
- 2008-07-16 KR KR1020107003276A patent/KR20100041834A/ko not_active Application Discontinuation
- 2008-07-16 AU AU2008286021A patent/AU2008286021B2/en not_active Ceased
- 2008-07-16 CN CN2008801024754A patent/CN101778590B/zh not_active Expired - Fee Related
- 2008-07-16 CA CA2695918A patent/CA2695918A1/fr not_active Abandoned
- 2008-07-16 US US12/672,334 patent/US20110197934A1/en not_active Abandoned
- 2008-07-16 RU RU2010108337/12A patent/RU2451480C2/ru not_active IP Right Cessation
- 2008-07-16 WO PCT/EP2008/005802 patent/WO2009018903A1/fr active Application Filing
Also Published As
Publication number | Publication date |
---|---|
RU2451480C2 (ru) | 2012-05-27 |
US20110197934A1 (en) | 2011-08-18 |
WO2009018903A1 (fr) | 2009-02-12 |
RU2010108337A (ru) | 2011-09-20 |
CN101778590B (zh) | 2013-03-06 |
AU2008286021A1 (en) | 2009-02-12 |
PL2022385T3 (pl) | 2011-10-31 |
KR20100041834A (ko) | 2010-04-22 |
EP2022385A1 (fr) | 2009-02-11 |
EP2359734A1 (fr) | 2011-08-24 |
ATE510487T1 (de) | 2011-06-15 |
CN101778590A (zh) | 2010-07-14 |
AU2008286021B2 (en) | 2011-03-24 |
CA2695918A1 (fr) | 2009-02-12 |
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