EP1498065B1 - Lave-vaisselle avec moyens pour réduire la consommation d'eau et d'énergie - Google Patents
Lave-vaisselle avec moyens pour réduire la consommation d'eau et d'énergie Download PDFInfo
- Publication number
- EP1498065B1 EP1498065B1 EP03425389A EP03425389A EP1498065B1 EP 1498065 B1 EP1498065 B1 EP 1498065B1 EP 03425389 A EP03425389 A EP 03425389A EP 03425389 A EP03425389 A EP 03425389A EP 1498065 B1 EP1498065 B1 EP 1498065B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- ducts
- manifold
- dishwasher according
- sectors
- 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.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 238000005406 washing Methods 0.000 claims abstract description 19
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 10
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 8
- 239000003599 detergent Substances 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 4
- 235000014676 Phragmites communis Nutrition 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000004851 dishwashing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- A47L15/4244—Water-level measuring or regulating 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
- A47L15/4214—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
-
- 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
- A47L15/4225—Arrangements or adaption of recirculation or discharge pumps
-
- 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
- A47L15/4248—Arrangements for dividing the tub compartment, e.g. for simultaneous washing of delicate and normal crockery
-
- 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
- A47L15/4251—Details of the casing
- A47L15/4257—Details of the loading door
Definitions
- the present invention relates to dishwashing machines, and in particular to a dishwasher for domestic use provided with means for reducing the water and power consumption.
- dishwashers for domestic use are provided with various arrangements for adapting them to the number and type of dishes to be washed, such as the setting of low-temperature, or energy-recovery, cycles or the feeding of one sprinkler only and so on.
- the washing affects the whole tank and therefore the whole structure of the machine is heated through the contact with hot water, with the consequence that the actual energy saving with respect to the full load operation does not exceed 20%.
- the object of the present invention is to provide a dishwasher which overcomes the above-mentioned drawbacks.
- the main advantage of the dishwasher according to the present invention is exactly that of being able to actually operate at half load, heating only half of the machine and with a power and water saving close to 50%.
- a second advantage of the present dishwasher is that of being able to use the same water load to wash alternately the dishes in the two sectors when the machine is at full load, thus achieving also in this case a water saving close to 50%.
- a further advantage of this type of machine stems from the fact that when the tank is undivided and the operation is conventional, larger dishes can be loaded and it still achieves better washing results thanks to the plurality of sprinklers and filters.
- a dishwasher conventionally includes a plurality of known elements: an electrovalve W controlling the entrance of water from the network, a meter F which measures the amount of water entering the machine, a unit for softening the water by means of decalcifying resins located in a container R, which includes a chamber A for the collection of water intended for the regeneration of said resins by means of a sodium chloride solution which is formed in a salt container S connected to container R through an electrovalve VR, and a drain duct D.
- the novel aspect of the present dishwasher consists of a horizontally extending washing tank with two racks R, R' side by side rather than one on top of the other, and a removable central dividing baffle S which performs the division of the tank into two independent sectors T, T'.
- each of the two sectors there is provided a collecting sump J and J' from which the water is drained through a drain pump DP and DP', a bottom sprinkler L and L' and possibly a top sprinkler U and U'.
- the feeding of the water coming from the common softening unit takes place through a deviating valve VD which directs the water to the respective supply ducts, and similarly the draining takes place through a connector Y which converges the drain ducts of the two sectors into the common drain duct D.
- baffle S it would be possible to use a single rack, having a width equal to the tank width, which is capable of receiving particularly large dishes, i.e. having a side longer than 60 cm, which can not presently be washed in the domestic dishwashers available on the market.
- the fact of having two smaller collecting sumps J, J' allows to provide the maximum filtering effectiveness and to optimize the used amount of water.
- the two separate filters have a combined filtering surface greater than that of the single filter of a conventional dishwasher, and the smaller area of each sump allows for a greater inclination of the bottom which favours the flowing of the water towards the filter and therefore allows for a greater useful height of the sump.
- the dishwasher door is preferably one but provided with two detergent/rinse aid distributors, one for each sector, so as to introduce the products only in the distributor corresponding to the sector to be used.
- the dividing baffle S is designed so as to assure along the four sides a sufficient water tightness, but in order to make easier its introduction and removal into and from the tank there is not provided a forced coupling. In fact even possible leakages from one sector to the other in case of separate operation are not a problem, and upon the final drain of the cycle also the drain pump of the inoperative sector is activated for some seconds to drain out said possible leakages.
- a sensor for detecting the presence of baffle S which can be made in various known ways such as a microswitch in a vertical baffle seat, or a magnet mounted on the baffle which activates a reed sensor mounted on the tank or on the door.
- the microprocessor will not accept the setting of separate cycles in the absence of baffle S and will give a relevant indication to the user, e.g. by lighting up a symbol on the display.
- pump WP is not directly connected in suction to the two sectors, whereas it is directly connected in delivery through a duct G, an electrovalve V which deviates the flow to one sector or the other and relevant delivery ducts H, H' which take the water to the sprinklers L, L' and U, U' (the upper portion of the hydraulic circuit being omitted in figs.2 and 3).
- ducts E, E' coming from sumps J, J' converge into a three-way manifold CA, from which a single duct F comes out to take the water to pump WP passing through a heating resistor HR.
- This manifold CA is that which allows to control the half load or alternate full load operation, by preventing the draining of air as described hereafter.
- the washing pump WP drains water through duct E' and manifold CA, in which shutter O does not resist the flow by bending along the bending line B, and finally duct F.
- the delivery of pump WP reaches the deviating electrovalve V, which is properly controlled to leave open the outlet towards duct H', thus feeding sprinkler L' (and U' if present) and, through duct K', reaches nozzle N' in manifold CA.
- the depression in the suction duct and the pressure available in duct K' it is possible to define the size of nozzle N' such that it emits a water jet which, though losing part of its energy in the manifold chamber due to the water present therein, is capable of resisting the depression by pushing shutter O' against the inlet of duct E, connected to the empty sump J, so as to prevent the inflow of air.
- valve V is driven to a partial opening for the outflow of water towards duct H to take water through sprinkler L to the right sector, while decreasing at the same time the flow rate to sprinkler L'.
- the pressure on shutters O, O' generated by nozzles N, N' is not sufficient to overcome the suction depression, due to the increase in the outgoing flow rate of pump WP and the consequent decrease in ducts K and K', whereby both shutters are partially open but without any consequence in that water is present in both sumps.
- the microprocessor detects the switching of the pressure switch P in sump J, adjusted on the level of "minimum water amount" for the feeding of the relevant sprinkler, it controls the progressive switching of the feeding and concludes it when the pressure switch P' in sump J' confirms that sump J' is almost empty.
- valves C, C' it is not possible to use valves C, C' to carry out also the control of the phases of the alternate washing in that the driving velocities required and the lack of "co-ordination" between the two valves would certainly give rise to problems, as experienced in the tests carried out by the applicant.
- manifold CA is replaced by a manifold CM including a shutter VS rotatable around an axis X under the action of an actuator M, the movement Z of said shutter VS taking it to close alternately the inlets of ducts E' and E.
- pressure switches P, P' of analogical type suitable to continuously detect the amount of water in the sumps, as well as a suitable control software.
- the actuator M of manifold CM must be capable of moving shutter VS in a short time according to the commands from the microprocessor. In this solution it is obviously superfluous to provide further cut-off valves since the sealing is assured by the motorized manifold, in which at the end of the transfer the shutter VS closes duct E' (position in broken lines).
Claims (10)
- Lave-vaisselle comprenant une électrovalve (W) contrôlant l'entrée d'eau du réseau, une unité d'adoucissement de l'eau, une cuve de lavage, un conduit d'écoulement (D), un distributeur de détergent, une résistance chauffante (HR) et un microprocesseur, caractérisé en ce que, dans ladite cuve de lavage sont disposés deux égouttoirs (R, R') côte à côte et une cloison amovible de séparation au centre qui divise la cuve en deux secteurs indépendants (T, T'), chacun étant pourvu d'un puits collecteur (J, J') avec filtre pertinent et pressostat (P, P'), une pompe de vidange (DP, DP') et au moins un arroseur (L, L'), l'alimentation en eau venant de ladite unité d'assouplissement ayant lieu à travers une valve de déviation (VD) qui dirige l'eau vers les conduits d'alimentation respectifs desdits secteurs (T, T') et l'écoulement ayant lieu à travers un connecteur (Y) qui fait converger les conduits d'écoulement des deux secteurs (T, T') à l'intérieur du conduit d'écoulement (D), étant également fourni un collecteur à trois branches qui reçoit l'eau desdits puits collecteurs (J, J') via des conduits respectifs (E, E') et la transporte vers une pompe de lavage unique (WP) qui l'alimente vers les arroseurs (L, L') à travers une deuxième valve de déviation (V) et les conduits de transport pertinents (H, H'), ledit collecteur étant fourni avec des moyens d'obturation adaptés pour fermer les admissions desdits conduits (E, E') arrivant des puits collecteurs (J, J').
- Lave-vaisselle selon la revendication 1, caractérisé en ce que la cuve de lavage est fermée par une porte unique fournie avec deux distributeurs de produit détergent/de rinçage, un à chaque secteur (T, T').
- Lave-vaisselle selon la revendication 1, caractérisé en ce que chaque secteur (T, T') est fermé par une porte pertinente fournie avec un distributeur de produit détergent/de rinçage.
- Lave-vaisselle selon la revendication 3, caractérisé en ce que les deux portes sont connectables mutuellement.
- Lave-vaisselle selon l'une quelconque des revendications précédentes, caractérisé en ce que la cloison de séparation (S) est montée dans la cuve via un assemblage adapté pour assurer le long des quatre côtés une étanchéité à l'eau adéquate, tout en permettant une introduction et un retrait doux de celle-ci.
- Lave-vaisselle selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend un senseur pour détecter la présence de la cloison de séparation (S).
- Lave-vaisselle selon la revendication 6, caractérisé en ce que le senseur pour détecter la présence de la cloison (S) est constitué d'un aimant monté sur la cloison (S) de sorte à activer un senseur à anche monté sur la cuve ou sur la porte.
- Lave-vaisselle selon l'une quelconque des revendications précédentes, caractérisé en ce que le collecteur (CA) comprend des obturations constituées de trappes (O, O') attachées au corps du collecteur (CA) et fournies avec des charnières solidaires formées par des lignes courbes (B, B'), derrière lesdites trappes (O, O') étant arrangées des injecteurs (N, N') qui sont orientés pour émettre des jets d'eau vers les obturations respectives et sont alimentés à travers des tubes respectifs (K, K') correspondant à des branches des conduits de transport (H, H').
- Lave-vaisselle selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le collecteur (CM) comprend une obturation (VS) pouvant être en rotation autour d'un axe (X) sous l'action d'un actionneur (M), le mouvement (Z) de ladite obturation (VS) l'amenant à fermer alternativement les admissions des conduits (E, E') venant des puits (J, J').
- Lave-vaisselle selon la revendication 9, caractérisé en ce que les pressostats (P, P') sont de type analogique adaptés pour détecter en continu la quantité d'eau dans les puits (J, J').
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03425389A EP1498065B1 (fr) | 2003-07-16 | 2003-07-16 | Lave-vaisselle avec moyens pour réduire la consommation d'eau et d'énergie |
DE60302143T DE60302143T2 (de) | 2003-07-16 | 2003-07-16 | Geschirrspülmaschine mit Mitteln zur Reduzierung des Energie- und Wasserverbrauchs |
ES03425389T ES2251674T3 (es) | 2003-07-16 | 2003-07-16 | Lavaplatos con medios para reducir el consumo de agua y energia. |
AT03425389T ATE308267T1 (de) | 2003-07-16 | 2003-07-16 | Geschirrspülmaschine mit mitteln zur reduzierung des energie- und wasserverbrauchs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03425389A EP1498065B1 (fr) | 2003-07-16 | 2003-07-16 | Lave-vaisselle avec moyens pour réduire la consommation d'eau et d'énergie |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1498065A1 EP1498065A1 (fr) | 2005-01-19 |
EP1498065B1 true EP1498065B1 (fr) | 2005-11-02 |
Family
ID=33462290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03425389A Expired - Lifetime EP1498065B1 (fr) | 2003-07-16 | 2003-07-16 | Lave-vaisselle avec moyens pour réduire la consommation d'eau et d'énergie |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1498065B1 (fr) |
AT (1) | ATE308267T1 (fr) |
DE (1) | DE60302143T2 (fr) |
ES (1) | ES2251674T3 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8043437B1 (en) | 2010-12-03 | 2011-10-25 | Whirlpool Corporation | Dishwasher with multiple treating chambers |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1726246A1 (fr) * | 2005-05-23 | 2006-11-29 | Bonferraro S.p.A. | Lave-vaisselle ayant fonction "demi-charge" |
EP2138086A1 (fr) * | 2008-06-27 | 2009-12-30 | Electrolux Home Products Corporation N.V. | Lave-vaisselle et procédé pour réduire le bruit généré dans un lave-vaisselle |
EP2138087A1 (fr) * | 2008-06-27 | 2009-12-30 | Electrolux Home Products Corporation N.V. | Lave-vaisselle et procédé d'admission d'eau dans un lave-vaisselle |
PL2263512T5 (pl) | 2009-06-17 | 2019-05-31 | Bonferraro Spa | Przemysłowa zmywarka kapturowa z ulepszonym zespołem filtracyjnym |
US9119515B2 (en) | 2010-12-03 | 2015-09-01 | Whirlpool Corporation | Dishwasher with unitary wash module |
US8746261B2 (en) | 2009-12-21 | 2014-06-10 | Whirlpool Corporation | Rotating drum filter for a dishwashing machine |
US8667974B2 (en) | 2009-12-21 | 2014-03-11 | Whirlpool Corporation | Rotating filter for a dishwashing machine |
US8627832B2 (en) | 2010-12-13 | 2014-01-14 | Whirlpool Corporation | Rotating filter for a dishwashing machine |
US9687135B2 (en) | 2009-12-21 | 2017-06-27 | Whirlpool Corporation | Automatic dishwasher with pump assembly |
US9918609B2 (en) | 2009-12-21 | 2018-03-20 | Whirlpool Corporation | Rotating drum filter for a dishwashing machine |
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 |
US20120138107A1 (en) * | 2010-12-03 | 2012-06-07 | Whirlpool Corporation | Dishwasher with single pump and filter unit for multiple compartments |
US9034112B2 (en) | 2010-12-03 | 2015-05-19 | Whirlpool Corporation | Dishwasher with shared heater |
DE102010061354A1 (de) * | 2010-12-20 | 2012-06-21 | Miele & Cie. Kg | Wasserweiche zur Verteilung von Wasser innerhalb eines wasserführenden Haushaltgeräts |
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 |
US20120318296A1 (en) | 2011-06-20 | 2012-12-20 | Whirlpool Corporation | Ultra micron filter for a dishwasher |
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 |
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 |
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 |
US9532700B2 (en) | 2012-06-01 | 2017-01-03 | Whirlpool Corporation | Dishwasher with overflow conduit |
US9451862B2 (en) | 2012-06-01 | 2016-09-27 | Whirlpool Corporation | Dishwasher with unitary wash module |
US9554688B2 (en) | 2012-10-23 | 2017-01-31 | Whirlpool Corporation | Rotating filter for a dishwasher and methods of cleaning a rotating filter |
KR102345342B1 (ko) * | 2014-08-12 | 2021-12-30 | 엘지전자 주식회사 | 식기세척기 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7105474U (de) * | 1971-08-19 | Brueggemann H | Automatische Geschirrspulvornchtung, insbesondere fur Haushaltszwecke | |
BE385513A (fr) * | 1931-01-28 | 1900-01-01 | ||
US3288154A (en) * | 1964-11-02 | 1966-11-29 | Gen Motors Corp | Plural compartment dishwasher with unitary pump |
DE1628544A1 (de) * | 1965-09-30 | 1970-05-06 | Congenia S A | Geschirrspuelmaschine |
US3586011A (en) * | 1969-08-04 | 1971-06-22 | Zanussi A Spa Industrie | Dish washer |
DE7821866U1 (de) * | 1978-07-21 | 1978-11-02 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Geschirrspuelmaschine |
DE9416710U1 (de) * | 1994-10-18 | 1994-12-01 | Roeser Karlo | Vorrichtung zum Reinigen von Geschirr |
US6289908B1 (en) * | 1999-12-01 | 2001-09-18 | Marjorie K. Kelsey | Double dishwasher |
-
2003
- 2003-07-16 AT AT03425389T patent/ATE308267T1/de not_active IP Right Cessation
- 2003-07-16 DE DE60302143T patent/DE60302143T2/de not_active Expired - Fee Related
- 2003-07-16 EP EP03425389A patent/EP1498065B1/fr not_active Expired - Lifetime
- 2003-07-16 ES ES03425389T patent/ES2251674T3/es not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8043437B1 (en) | 2010-12-03 | 2011-10-25 | Whirlpool Corporation | Dishwasher with multiple treating chambers |
Also Published As
Publication number | Publication date |
---|---|
EP1498065A1 (fr) | 2005-01-19 |
DE60302143D1 (de) | 2005-12-08 |
DE60302143T2 (de) | 2006-08-03 |
ATE308267T1 (de) | 2005-11-15 |
ES2251674T3 (es) | 2006-05-01 |
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Legal Events
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