EP0575837A1 - Geschirrspülmaschine - Google Patents

Geschirrspülmaschine Download PDF

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Publication number
EP0575837A1
EP0575837A1 EP93109380A EP93109380A EP0575837A1 EP 0575837 A1 EP0575837 A1 EP 0575837A1 EP 93109380 A EP93109380 A EP 93109380A EP 93109380 A EP93109380 A EP 93109380A EP 0575837 A1 EP0575837 A1 EP 0575837A1
Authority
EP
European Patent Office
Prior art keywords
substance
chamber
water
washing tank
brine
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
EP93109380A
Other languages
English (en)
French (fr)
Other versions
EP0575837B1 (de
Inventor
Enzo Brignone
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.)
Bitron SpA
Original Assignee
Bitron SpA
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 Bitron SpA filed Critical Bitron SpA
Publication of EP0575837A1 publication Critical patent/EP0575837A1/de
Application granted granted Critical
Publication of EP0575837B1 publication Critical patent/EP0575837B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the present invention relates to a domestic electric appliance, in particular a dishwasher, including:
  • a domestic electric appliance of the type described above is known from British patent application No. 2210256.
  • the chamber for receiving the used brine and the water used for rinsing the substance with decalcifying properties is disposed hydraulically upstream of the washing tank and is connected to the lower portion thereof, which is known as the sump.
  • the used brine and the rinsing water can thus be discharged to the sump and are then conveyed into the general waste pipe of the domestic electric appliance.
  • the sump Since the used brine has corrosive properties, the sump has to be made of plastics material, unlike the other parts of the washing tank which are made of metal.
  • the subject of the present invention is a domestic electric appliance of the type indicated above, characterised in that the chamber is disposed hydraulically in parallel with the washing tank.
  • the used brine and the water used to rinse the substance with decalcifying properties flow from the chamber into the general waste pipe of the domestic electric appliance downstream of the washing tank, preventing corrosion problems from arising therein.
  • an air break chamber is indicated 10
  • a container for a substance with decalcifying properties for example, an ion-exchange resin
  • a salt reservoir is indicated 14
  • a metering chamber is indicated 16
  • a washing tank is indicated 18
  • a chamber for receiving used brine is indicated 20
  • an electric pump positioned in a general waste pipe 24 of the domestic electric appliance is indicated 22.
  • the water supplied from the duct 26 flows firstly into the tank 10 and most of it is then sent into the ion-exchange resin container 12 where it is decalcified.
  • the decalcified water is then admitted to the metering chamber 16 and then to the tank 18 from which, upon completion of the washing cycle, it is discharged through the waste pipe 24 in which the electric pump 22 is disposed.
  • the rest of the water supplied is sent from the tank 10 to the salt reservoir 14, where it forms a brine which is passed through the ion-exchange resin container 12 so as to regenerate the resin after it has been used to soften the water to be sent to the metering chamber 16.
  • Any residues of saline substances or calcareous deposits are then rinsed from the ion-exchange resin container 12 by a further flow of rinsing water from the tank 10.
  • the used brine and rinsing water are drained into the chamber 20, the outlet duct 28 of which joins the general waste pipe 24 of the domestic electric appliance downstream of the washing tank 18 so that the chamber 20 is disposed hydraulically in parallel therewith.
  • the outlet duct 28 of the chamber 20 may join the general waste pipe 24 either upstream of the electric pump 22 (as shown in Figure 1) or downstream of the electric pump 22 (as shown in Figure 2).
  • the chamber 20 may be emptied, for example, by gravity.
  • the portion of the general waste pipe 24 including the point at which it joins the outlet duct 28 of the chamber 20 may be shaped like a Venturi tube. In this case, the flow of liquid through this portion generates a vacuum which sucks the liquid out of the chamber 20, even if it is positioned below the general waste pipe 24.

Landscapes

  • Detergent Compositions (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
EP93109380A 1992-06-22 1993-06-11 Geschirrspülmaschine Expired - Lifetime EP0575837B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO920530 1992-06-22
ITTO920530A IT1259587B (it) 1992-06-22 1992-06-22 Apparecchio elettrodomestico.

Publications (2)

Publication Number Publication Date
EP0575837A1 true EP0575837A1 (de) 1993-12-29
EP0575837B1 EP0575837B1 (de) 1996-11-27

Family

ID=11410551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93109380A Expired - Lifetime EP0575837B1 (de) 1992-06-22 1993-06-11 Geschirrspülmaschine

Country Status (4)

Country Link
EP (1) EP0575837B1 (de)
DE (1) DE69306177T2 (de)
ES (1) ES2094964T3 (de)
IT (1) IT1259587B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4413432C1 (de) * 1994-04-18 1995-08-31 Bauknecht Hausgeraete Programmgesteuerte Geschirrspülmaschine
DE19645274A1 (de) * 1996-11-02 1998-05-07 Miele & Cie Verfahren zum Regenerieren des Ionenaustauschers einer Enthärtungseinrichtung einer programmgesteuerten Geschirrspülmaschine, sowie Geschirrspülmaschine zur Durchführung des Verfahrens
FR2755880A1 (fr) * 1996-11-15 1998-05-22 Bitron Spa Dispositif adoucisseur perfectionne
EP0873714A2 (de) * 1997-04-23 1998-10-28 Electrolux Zanussi S.p.A. Waschmaschine mit Regenerationsvorrichtung für Wasserenthärtungsanlage
DE19934954A1 (de) * 1999-07-26 2001-02-01 Aweco Appliance Sys Gmbh & Co Haushaltsmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH468504A (de) * 1966-10-06 1969-02-15 Licentia Gmbh Verfahren zum Betreiben einer Waschmaschine
FR2252831A1 (de) * 1973-11-29 1975-06-27 Solvay
DE3527182A1 (de) * 1985-07-30 1987-02-12 Licentia Gmbh Programmgesteuerte wasch- oder geschirrspuelmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH468504A (de) * 1966-10-06 1969-02-15 Licentia Gmbh Verfahren zum Betreiben einer Waschmaschine
FR2252831A1 (de) * 1973-11-29 1975-06-27 Solvay
DE3527182A1 (de) * 1985-07-30 1987-02-12 Licentia Gmbh Programmgesteuerte wasch- oder geschirrspuelmaschine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4413432C1 (de) * 1994-04-18 1995-08-31 Bauknecht Hausgeraete Programmgesteuerte Geschirrspülmaschine
DE19645274A1 (de) * 1996-11-02 1998-05-07 Miele & Cie Verfahren zum Regenerieren des Ionenaustauschers einer Enthärtungseinrichtung einer programmgesteuerten Geschirrspülmaschine, sowie Geschirrspülmaschine zur Durchführung des Verfahrens
FR2755880A1 (fr) * 1996-11-15 1998-05-22 Bitron Spa Dispositif adoucisseur perfectionne
EP0873714A2 (de) * 1997-04-23 1998-10-28 Electrolux Zanussi S.p.A. Waschmaschine mit Regenerationsvorrichtung für Wasserenthärtungsanlage
EP0873714A3 (de) * 1997-04-23 1999-03-24 Electrolux Zanussi S.p.A. Waschmaschine mit Regenerationsvorrichtung für Wasserenthärtungsanlage
DE19934954A1 (de) * 1999-07-26 2001-02-01 Aweco Appliance Sys Gmbh & Co Haushaltsmaschine
TR200002181A3 (tr) * 1999-07-26 2001-02-21 Aweco Appliance Systems Gmbh & Co. Kg Ev makinasi.
TR200002181A2 (tr) * 1999-07-26 2001-02-21 Aweco Appliance Systems Gmbh & Co. Kg Ev makinası.

Also Published As

Publication number Publication date
DE69306177T2 (de) 1997-03-20
EP0575837B1 (de) 1996-11-27
DE69306177D1 (de) 1997-01-09
IT1259587B (it) 1996-03-20
ITTO920530A1 (it) 1993-12-22
ITTO920530A0 (it) 1992-06-22
ES2094964T3 (es) 1997-02-01

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