EP1810606A1 - Geschirrspülmaschine mit einem entfernbaren Wasserenthärter - Google Patents

Geschirrspülmaschine mit einem entfernbaren Wasserenthärter Download PDF

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Publication number
EP1810606A1
EP1810606A1 EP06100730A EP06100730A EP1810606A1 EP 1810606 A1 EP1810606 A1 EP 1810606A1 EP 06100730 A EP06100730 A EP 06100730A EP 06100730 A EP06100730 A EP 06100730A EP 1810606 A1 EP1810606 A1 EP 1810606A1
Authority
EP
European Patent Office
Prior art keywords
water
softener
dishwasher
tub
removable
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.)
Withdrawn
Application number
EP06100730A
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English (en)
French (fr)
Inventor
Marco Signa
Biernatowski Lukasz
Stefano Tavolazzi
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.)
Whirlpool Corp
Original Assignee
Whirlpool Corp
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 Whirlpool Corp filed Critical Whirlpool Corp
Priority to EP06100730A priority Critical patent/EP1810606A1/de
Publication of EP1810606A1 publication Critical patent/EP1810606A1/de
Withdrawn legal-status Critical Current

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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
    • A47L15/4229—Water softening 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
    • A47L15/0086—In-sink dishwashers

Definitions

  • the present invention relates to a dishwasher comprising a water inlet system and a water spray system inside a tub.
  • a water softener that comprises a regenerator for such water softener.
  • This latter is basically a container with a bed of ion-exchanging resins in order to remove the calcium ions from water and replacing them with sodium ions.
  • the regenerator comprises a salt dissolving container linked to the above resin container by means of tubes and valves. All this assembly is quite complex and bulky, therefore leading to some constraints in the dimensions of the tub, and it is expensive as well. Moreover, it is necessary to provide regeneration cycles of the resin (depending on the water hardness) and a periodic loading of salt (NaCl) in the regenerator.
  • An object of the present invention is to provide a dishwasher which is economical and which does not present the above problems.
  • a diverter valve in the water inlet system (which bypasses the water softener in predetermined phases of the washing and rinsing cycle) allows to reduce the time interval for replacing the removable softener.
  • the dishwasher can be sold in certain regions (in which water has low hardness) without the disposable water softening filter, informing the user that a 3-in-1 tablet detergent is preferred (and giving to the user the possibility to buy the water softener cartridge separately from the dishwasher if he prefers to use the traditional detergent).
  • Another advantage of the dishwasher according to the invention is that it does not release salt and chlorine ions into the environment (contrary to what happens for usual dishwashers during resin regeneration).
  • the removable softener acts as a sort of filter for calcium ions, and it prevents removal of all the scale, leaving the optimum amount for best performances. It prevents also etching effect on glasses.
  • the removable softener can be made as a cartridge easily mounted in the dishwasher, for instance by means of a bayonet type fastener. The cartridges can be stored for a long period of time, being not igroscopic (contrary to the limited storage period of regenerating salt).
  • the removable softener according to the invention is much easier to replace than filling salt inside its reservoir. It also leaves tub interior clean, making useless the traditional salt dispenser cap.
  • an in-sink dishwasher having a main sink 10a and an auxiliary sink 10b placed side by side and supported by the same frame 10c.
  • the dishwasher 10 is adapted to be mounted in a cutout of a worktop of a kitchen piece of furniture (not shown), as all the other types of in-sink dishwashers.
  • a removable rotating spray arm 11 is mounted in the main sink 10a and a rack 12 can be removably inserted when the sink has to be used as the tub of the dishwasher (closed by a lid 14).
  • a wash module 16 is installed, containing the components of the dishwasher.
  • Such components are shown in figures 2 and 3 and comprise a sump 18, a membrane switch 20 for controlling water level in the tub 10a, an inlet valve 22, a control platform 24, a rinse-aid dispenser 26, a motor pump heater 28, a discharge pump 30 and a water softener 32.
  • the incoming "hard” water can be fed directly into the tub 10a or it can be softened by passing it through the water softener 32.
  • This latter presents a base portion 32a fixed to the frame 10c of the dishwasher 10 and a cartridge removable portion 32b containing the resin pellets.
  • the cartridge portion 32b is placed on a side of the main sink 10a, under the bottom of the auxiliary sink 10b. It can be easily removed and replaced by the user by simply opening a door (not shown) provided in the piece of furniture supporting the dishwasher 10.
  • a spring loaded closure assures that if the valve 22 drives water through the pipe 40, there will be no water leakage from the system (and of course there will be no softening action on the incoming water). It is not necessary to describe in detail such closure system since it is already known for instance from water filters of refrigerators or the like.
  • the control platform drives the valve 22 in order to feed softened water to the tub 10a only when is strictly necessary, for instance in the main wash phase and in the final rinse.
  • the water inlet system may include a water hardness sensor for providing the control platform 24 with a signal indicative of the actual water hardness, and therefore for adjusting the amount of water passing through the softener 32 accordingly.
  • the control platform 24 may also receive an input signal (for instance through a button on the user interface of the dishwasher) concerning the use of a 3-in1 or similar composition, and it can further adjust the amount of water that is needed to be softened.
  • the water softener 32 may include a sensor for providing the control platform 24 with a signal indicative of the exhaustion of the cartridge 32b. In this case the user is alerted and informed when the cartridge has to be replaced.

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  • Treatment Of Water By Ion Exchange (AREA)
  • Washing And Drying Of Tableware (AREA)
EP06100730A 2006-01-23 2006-01-23 Geschirrspülmaschine mit einem entfernbaren Wasserenthärter Withdrawn EP1810606A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06100730A EP1810606A1 (de) 2006-01-23 2006-01-23 Geschirrspülmaschine mit einem entfernbaren Wasserenthärter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06100730A EP1810606A1 (de) 2006-01-23 2006-01-23 Geschirrspülmaschine mit einem entfernbaren Wasserenthärter

Publications (1)

Publication Number Publication Date
EP1810606A1 true EP1810606A1 (de) 2007-07-25

Family

ID=36579199

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06100730A Withdrawn EP1810606A1 (de) 2006-01-23 2006-01-23 Geschirrspülmaschine mit einem entfernbaren Wasserenthärter

Country Status (1)

Country Link
EP (1) EP1810606A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009004037A1 (en) * 2007-07-04 2009-01-08 Arcelik Anonim Sirketi A dishwasher
ITTO20110792A1 (it) * 2011-09-05 2013-03-06 Bitron Spa Macchina lavabiancheria perfezionata
CN107752952A (zh) * 2017-11-24 2018-03-06 佛山市顺德区美的洗涤电器制造有限公司 水槽式洗碗机

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3148687A (en) * 1961-05-20 1964-09-15 Dosch Paul Article washing machine including a water softening arrangement
US3476600A (en) * 1966-03-08 1969-11-04 Ionics Rinsing machine-washed dishes
US3496740A (en) * 1967-11-06 1970-02-24 Stuart Borochaner Washing machine with water-softening means and acid neutralizing means
US4645595A (en) * 1984-11-23 1987-02-24 General Electric Company Water softening system particularly for individual appliances
DE3700372C1 (en) * 1986-12-10 1987-11-12 Horst Hammes Discharge vessel for cleaning devices
EP1002582A1 (de) * 1998-11-02 2000-05-24 V-Zug AG Verfahren zum Betrieb eines Ionentauschers
DE10100163A1 (de) * 2001-01-04 2002-07-18 Profectis Gmbh Tech Kundendien Vorrichtung und Verfahren zum Entkalken von Haushaltsgeräten
EP1358836A2 (de) * 2002-05-03 2003-11-05 Whirlpool Corporation In einer Spüle eingebaute rauscharme Spülmaschine
US20050126603A1 (en) * 2002-08-21 2005-06-16 Bsh Bosch Und Siemens Hausgerate Gmbh Method for adapting a rinsing program in a dishwasher machine, and corresponding dishwasher machine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3148687A (en) * 1961-05-20 1964-09-15 Dosch Paul Article washing machine including a water softening arrangement
US3476600A (en) * 1966-03-08 1969-11-04 Ionics Rinsing machine-washed dishes
US3496740A (en) * 1967-11-06 1970-02-24 Stuart Borochaner Washing machine with water-softening means and acid neutralizing means
US4645595A (en) * 1984-11-23 1987-02-24 General Electric Company Water softening system particularly for individual appliances
DE3700372C1 (en) * 1986-12-10 1987-11-12 Horst Hammes Discharge vessel for cleaning devices
EP1002582A1 (de) * 1998-11-02 2000-05-24 V-Zug AG Verfahren zum Betrieb eines Ionentauschers
DE10100163A1 (de) * 2001-01-04 2002-07-18 Profectis Gmbh Tech Kundendien Vorrichtung und Verfahren zum Entkalken von Haushaltsgeräten
EP1358836A2 (de) * 2002-05-03 2003-11-05 Whirlpool Corporation In einer Spüle eingebaute rauscharme Spülmaschine
US20050126603A1 (en) * 2002-08-21 2005-06-16 Bsh Bosch Und Siemens Hausgerate Gmbh Method for adapting a rinsing program in a dishwasher machine, and corresponding dishwasher machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009004037A1 (en) * 2007-07-04 2009-01-08 Arcelik Anonim Sirketi A dishwasher
US20100180919A1 (en) * 2007-07-04 2010-07-22 Ayla Kuran Dishwasher
US9451865B2 (en) * 2007-07-04 2016-09-27 Arcelik Anonim Sirketi Dishwasher
ITTO20110792A1 (it) * 2011-09-05 2013-03-06 Bitron Spa Macchina lavabiancheria perfezionata
EP2565319A1 (de) * 2011-09-05 2013-03-06 Bitron S.p.A. Verbesserte Waschmaschine
CN107752952A (zh) * 2017-11-24 2018-03-06 佛山市顺德区美的洗涤电器制造有限公司 水槽式洗碗机
CN107752952B (zh) * 2017-11-24 2024-04-05 佛山市顺德区美的洗涤电器制造有限公司 水槽式洗碗机

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