EP0003451A1 - Wasserzulaufgerät und Spül- oder Waschmaschine mit einem solchen Gerät - Google Patents

Wasserzulaufgerät und Spül- oder Waschmaschine mit einem solchen Gerät Download PDF

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Publication number
EP0003451A1
EP0003451A1 EP79400023A EP79400023A EP0003451A1 EP 0003451 A1 EP0003451 A1 EP 0003451A1 EP 79400023 A EP79400023 A EP 79400023A EP 79400023 A EP79400023 A EP 79400023A EP 0003451 A1 EP0003451 A1 EP 0003451A1
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EP
European Patent Office
Prior art keywords
water
resin
regeneration
softener
tank
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
EP79400023A
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English (en)
French (fr)
Other versions
EP0003451B1 (de
Inventor
Laurent Didier
Camille Barbier
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.)
"esswein Sa"
Esswein SA
Original Assignee
"esswein Sa"
Esswein SA
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.)
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Publication date
Application filed by "esswein Sa", Esswein SA filed Critical "esswein Sa"
Publication of EP0003451A1 publication Critical patent/EP0003451A1/de
Application granted granted Critical
Publication of EP0003451B1 publication Critical patent/EP0003451B1/de
Expired legal-status Critical Current

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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
    • A47L15/4229—Water softening arrangements

Definitions

  • the present invention relates to a device for supplying water to a washing machine provided with a water softener, and machine for washing dishes or laundry provided with such a device.
  • a water supply from a washing machine or dishwashing machine fitted with a water softener should almost preferably provide at least three following functions: that of a softened water supply, that of a regeneration of the softener resin and that of a water supply coming from the distribution network.
  • water supply devices are already made. These known devices, designed in one piece, receive, under command, network water and direct it to the user organs of the machine. However, in these known devices, frequently one or two of the three water supply functions mentioned above are fulfilled, the other functions being provided by independent devices. For example, in certain known devices, the supply of softened water and the regeneration of the softener resin are ensured, but the direct supply of water to the network is made independently. As a result, in manufacturing, such a water supply circuit is still complicated and expensive.
  • the aim of the present invention is to avoid these drawbacks and makes it possible to produce an improved and economical water supply device, formed in one piece, ensuring not only the three water supply functions mentioned above, but also a adjusting the regeneration of the water softener resin.
  • the subject of the invention is also a dishwashing machine or a washing machine provided with such a device.
  • a device for supplying water to a dishwashing machine or linen provided with a resin water softener and a resin regenerating salt pot, is characterized in that, in fulfilling at least the functions of supplying network water, supplying water softened, for supplying water for regenerating the resin of the softener and for adjusting this regeneration of the resin, this water supply device, produced in one piece, comprises at least in the first place, three horizontally aligned compartments , communicating with each other, and with the outside air forming an inlet chamber, an intermediate chamber and a reservoir, secondly, two inlet nozzles mounted with their ends opening into this inlet chamber and with their converging axes downstream, one of which crosses the communication openings of these three compartments, thirdly, two pipes respectively extending these inlet chamber and intermediate chamber in order to put them in communication with the machine tank, in the fourth place, in this tank a device for adjusting the water level which conditions the regeneration of the resin of the softener, and a zigzag pipe, flow limiter formed
  • It can also include a diverging convergent outlet nozzle, mounted in the inlet chamber, with its axis coinciding with the axis of the inlet nozzle, the one whose axis does not pass through the communication openings of these three compartments , and with its outer end adapted to be connected to this softener.
  • a diverging convergent outlet nozzle mounted in the inlet chamber, with its axis coinciding with the axis of the inlet nozzle, the one whose axis does not pass through the communication openings of these three compartments , and with its outer end adapted to be connected to this softener.
  • a dishwashing machine 1 comprises an envelope or bodywork 2 provided with a door 3 and housing a tank 4 in which various usual dishwashing operations are carried out.
  • the operating members of the machine 1 which are members of known types are not shown.
  • the machine 1 is supplied with water by a circuit 5, diagrammatically illustrated in FIG. 1.
  • This water supply circuit 5 comprises a water inlet 6 from the distribution network, a water supply device 7, a softener of water 8, a regenerating salt container 9 and a non-return valve 10 which prevents the return of water from the softener 8 into the salt container 9.
  • the supply circuit 5 of the machine 1 performs the following functions: that of a supply of softened water, that of a supply of water for a regeneration of the softener resin 8, that of a direct supply of water to the distribution network and that of an adjustment of this regeneration of the softener resin 8.
  • the water supply device 7 comprises according to the invention, in a body made in one piece, three horizontally aligned compartments communicating with each other and with the outside air, forming an inlet chamber 15 an intermediate chamber 18 and a reservoir 19, two inlet nozzles 11 and 12 mounted so as to have their converging longitudinal axes 13 and 14 downstream and their ends opening into the chamber 'entry 15.
  • This room 15 is first extended by a pipe 16 which, by a pipe 38 leads to the tank 4, then provided, at a certain distance and in alignment with the axis 13 of one of these inlet nozzles, d '' a diverging convergent outlet nozzle 17 leading by a pipe 41 to the softener 8, and finally, along the axis 14 of the second 12 of these inlet nozzles, in communication successively with an intermediate chamber 18 and a reservoir 19
  • the intermediate chamber 18 is placed in the air in its upper part by a duct 20, and, in order to be in communication with the tank 4, extended by a pipe 21 which opens out through a opening 22 in the last section 23 of the pipe 16 and the pipe 38, the opening 22 being formed in a dividing wall between the pipes 16 and 21.
  • a deflector 24 cutting the axis 14 of the nozzle 12 is formed at a certain distance from the inlet 25 of the tank 19 to break the jet of water coming from this nozzle 12 along this axis 14 to fill this tank 19.
  • the tank 19 is limited on the side of the inlet nozzles 11 and 12 by a partition 26 substantially vertical, adjoining the pipe 21.
  • the upper edge of the partition 26 which forms with the wall of the vent pipe 20, the inlet 25 of the tank 19, is located below the level of the axis 14 of the nozzle 12, the reservoir 19 is further limited on the side opposite to the deflector 24, by a substantially vertical partition 27 which constitutes with the external lateral wall of the water supply device 7 a conduit 28.
  • the upper edge of the partition 27 is higher than that of partition 26 and forms with the p lafond of this device 7 an opening 29 which ensures ventilation to the outside of the duct 28, through an opening 30 made in this ceiling.
  • the partition 26, the intermediate chamber 18 and the pipe 21 form an overflow system of the tank 19. This system constitutes a water level limiter in the tank 19.
  • the tank 19 comprises at its bottom a zigzag pipe limiting flow 31 which, emerging in the last section 32 of the conduit 28, ensures, according to a predetermined flow, a transfer of the water from the reservoir 19 into the regenerating salt container 9, through a pipe 33.
  • the zigzag pipe 31 is constituted by a baffle defined by several plates 34 staggered and spaced from each other.
  • the zigzag pipe 31 thus comprising a great length and an elongated cross section, allows in the transfer of water to avoid the risks of obstruction which are usually encountered in a known flow limiter which is provided with an orifice low section flow.
  • the flow rate through the zigzag pipe 31 is chosen to obtain an efficient regeneration of the softener resin 8.
  • Usually an efficient regeneration of the resin requires that the flow of brine be slow on the order of 0.2 liter per minute.
  • the tank 19 is further provided with a device 35 for adjusting the water level which conditions the regeneration of the resin. This device 35 is formed by a siphon constituted by two concentric sliding tubes 36 and 37.
  • the inner tube 36 made integral with the bottom of the tank 19 ensures free communication between the interior of this tank 19 and the tank 4, through example the last section of the pipe 21, the opening 22, the last section of the pipe 16 and the pipe 38.
  • the outer tube 37 sliding along the tube 36 is closed at its upper end and connected to a control system for position of known type schematically illustrated in 39, to ensure the height adjustment and the maintenance in position of the outer tube 37 relative to the bottom of the tank 19.
  • the flow rate of the siphon constituting the device 35 is determined by the amount of play between the two concentric tubes 36, 37.
  • the upper end of the tube interior 36 is at the same level of the upper edge of the partition 26.
  • the water level in the tank 19 is that of the upper end of this inner tube 36 that is to say that defined by the overflow system 18 - 26.
  • the outer tube 37 slides on the inner tube 36, the height of water in the tank 19 is determined by the level where the lower end of this outer tube 37 is located in this reservoir 19.
  • a solenoid valve 40 is opened which feeds the nozzle 11.
  • the jet of water leaving the nozzle 11 passes through the inlet 15, enters the outlet nozzle 17 converging diverging and in the pipe 41, passes through the softener 8 and enters, through the conduit 42, into the tank 4 (FIG. 1).
  • the space separating the inlet 11 and outlet 17 nozzles, constituted by the chamber 15, makes it possible to avoid a return of water in the distribution network when a depression accidentally occurs in the latter.
  • the "convergent and divergent" shape of the bore of the outlet nozzle 17 facilitates the reception of the water jet coming from the nozzle 11 and contributes to the conversion of the flow speed of the water jet into pressure facilitating the crossing of the softener by this water.
  • the water supply to the salt container 9 for the regeneration of the resin softener 8 is made by an opening of a solenoid valve 43 which supplies the nozzle 12, the solenoid valve 40 being closed.
  • the water jet leaving the inlet nozzle 12 passes through the inlet chamber 15, the intermediate chamber 18, the inlet 25, enters the tank 19 and is crushed against the deflector 24.
  • the flow of the outgoing jet of the nozzle 12 is chosen to be greater than the sum of the flows of the zigzag pipe 31, flow limiter, and of the water level adjustment device 35.
  • the overflow of the tank 19 passes the upper edge of the partition 26, enters the line 21, the opening 22, the section 23 of the line 16 and the pipe 38 and pours into the tank 4 of the machine 1 while in the tank 19, a. part of the water escapes through the water level adjustment device 35, the opening 22, the section 23 of the pipe 16 and the pipe 38 to pour into the tank 4 of the machine 1, and a part of the water passes through the zigzag pipe 31, the section 32 of the pipe 28 and the pipe 33 to enter the regenerated salt container ur 9.
  • the water level in the tank 19 remains constant after the operation of the overflow system 18 - 26, and the flow rate of water supply to the salt container 9 which is a function of the water level in this tank 19, is also constant and its value has been determined to obtain an effective, optimal regeneration of the resin of the softener 8.
  • the water level in the tank 19 is determined by the level of the lower end of the outer tube 37 of the device 35, this level being adjustable at means of the control system 39.
  • the water level in the tank is that of the overflow system formed by the upper edge of the partition 26, and in this case, a maximum water content of the reservoir 19 passes into the regenerating salt pot 9.
  • the lower end of the outer tube 37 of the device 35 is at its lowest level, almost all of the water contained in the tank 19 flows through this device 35 into the tank 4.
  • the device 35 for adjusting the water level thus constitutes a regulating device for regenerating the resin of the softener 8.
  • the water supply device 7 With the water supply device 7 described above, both precise adjustment of the amount of water is obtained. resin regeneration water and an adequate and constant flow of regeneration water during the almost total duration of this supply of resin regeneration water.
  • the resin regeneration adjustment function is provided by a device, independent of the water supply device, in wherein the amount of the resin regeneration water and the flow of regeneration water p en- tooth of the water pressure of the network is often irregular. The regeneration of the resin and therefore the softening of the water are therefore often irregular.
  • the improved water supply device 7 above contributes to giving the water supply circuit of the machine a structure relatively simple, and at the same time ensures not only a supply of the machine 1, with water from the distribution network, and softened water, but also an effective and adequate regeneration of the resin of the softener 8.
  • the device 7 allows, in fact by a precise adjustment of the quantity of regeneration water and a selected flow rate of practically constant regeneration water, to obtain a softening adapted to the different qualities of water, very calcareous waters requiring in particular a relatively deeper softening.
  • the device 44 for adjusting the water level which conditions the regeneration of the resin of the softener 8 consists of a tube 45 which can pivot about a horizontal axis 46, fixed relative to the bottom of the tank 19, and communicates with the tank 4 of the machine, through a pipe connection 47, the last section of the pipe 21, the opening 22, the last section 23 of the pipe 16 and the pipe 38.
  • the tube 45 In its vertical position, the tube 45 has its upper end being at the same level as the upper edge of the partition 26.
  • the water level in the tank 19 depends on the level of the point where the upper end of the tube 45 is located.
  • the tube 45 is pivoted in the opposite direction, that is to say from its horizontal position to its position vertical.
  • the tube 45 can be pivoted by a control system of known type.
  • the device 48 for adjusting the water level which conditions the regeneration of the resin of the softener 8 consists of a tap or adjustable opening valve, for example, a ball valve. By acting on this tap, the water level in the tank 19 is adjusted and, consequently, the regeneration of the resin of the softener 8.
  • the other elements of the water supply device 7 of the second and third embodiments are identical to those of the first exemplary embodiment illustrated in FIG. 2.
EP19790400023 1978-01-27 1979-01-11 Wasserzulaufgerät und Spül- oder Waschmaschine mit einem solchen Gerät Expired EP0003451B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7802341A FR2415449A1 (fr) 1978-01-27 1978-01-27 Dispositif d'alimentation en eau d'une machine a laver pourvue d'un adoucisseur d'eau, et machine a laver la vaisselle ou le linge munie d'un tel dispositif
FR7802341 1978-01-27

Publications (2)

Publication Number Publication Date
EP0003451A1 true EP0003451A1 (de) 1979-08-08
EP0003451B1 EP0003451B1 (de) 1981-04-29

Family

ID=9203908

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790400023 Expired EP0003451B1 (de) 1978-01-27 1979-01-11 Wasserzulaufgerät und Spül- oder Waschmaschine mit einem solchen Gerät

Country Status (4)

Country Link
EP (1) EP0003451B1 (de)
DE (1) DE2960281D1 (de)
ES (1) ES477149A1 (de)
FR (1) FR2415449A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4307742A (en) * 1978-11-25 1981-12-29 Schrott Friedrich Wilhelm H Ion exchanger regeneration water supply control unit
FR2516070A1 (fr) * 1981-11-11 1983-05-13 Bosch Siemens Hausgeraete Adoudoucisseur d'eau pour appareils menagers, notamment pour lave-vaiselle
FR2534798A1 (fr) * 1982-10-22 1984-04-27 Bosch Siemens Hausgeraete Dispositif de distribution d'eau dans un lave-vaisselle
FR2545347A1 (fr) * 1983-05-06 1984-11-09 Bosch Siemens Hausgeraete Procede pour recuperer la chaleur perdue dans un lave-vaisselle a usage menager et machine pour la mise en oeuvre du procede
FR2652254A1 (fr) * 1989-09-22 1991-03-29 Esswein Sa Lave-vaisselle muni d'un condenseur d'humidite.
EP1120080A2 (de) * 2000-01-28 2001-08-01 BITRON S.p.A. Regelungsvorrichtung für Wasserentkalkungsgerät
EP1161916A2 (de) * 2000-06-10 2001-12-12 AEG Hausgeräte GmbH Wasserführendes Haushaltsgerät und Verfahren zum Einstellen des Härtegrades einer Frischwassermenge

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9109497U1 (de) * 1991-07-31 1991-09-26 Bosch-Siemens Hausgeraete Gmbh, 8000 Muenchen, De

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2086139A1 (de) * 1970-04-17 1971-12-31 Bosch Hausgeraete Gmbh
DE2219888A1 (de) * 1972-04-22 1973-10-31 Licentia Gmbh Vorrichtung zum wasserenthaerten fuer wasch- und geschirrspuelmaschinen
DE2232020A1 (de) * 1972-06-30 1974-01-17 Licentia Gmbh Fluessigkeitsverteilelement fuer wasch- und geschirrspuelmaschinen
DE2417731A1 (de) * 1974-04-11 1975-10-30 Aweco App & Geraetebau Kg Vorrichtung zur rueckflussverhinderung, insbesondere fuer wasserenthaertungseinrichtungen
FR2298308A1 (fr) * 1975-01-25 1976-08-20 Euro Hausgeraete Gmbh Dispositif d'admission d'eau et de ventilation pour un lave-vaisselle ou appareil similaire
FR2336031A7 (fr) * 1972-09-01 1977-07-15 Bosch Hausgeraete Gmbh Lave-vaisselle comportant une cuve de lavage et un echangeur d'ions

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2086139A1 (de) * 1970-04-17 1971-12-31 Bosch Hausgeraete Gmbh
DE2219888A1 (de) * 1972-04-22 1973-10-31 Licentia Gmbh Vorrichtung zum wasserenthaerten fuer wasch- und geschirrspuelmaschinen
DE2232020A1 (de) * 1972-06-30 1974-01-17 Licentia Gmbh Fluessigkeitsverteilelement fuer wasch- und geschirrspuelmaschinen
FR2336031A7 (fr) * 1972-09-01 1977-07-15 Bosch Hausgeraete Gmbh Lave-vaisselle comportant une cuve de lavage et un echangeur d'ions
DE2417731A1 (de) * 1974-04-11 1975-10-30 Aweco App & Geraetebau Kg Vorrichtung zur rueckflussverhinderung, insbesondere fuer wasserenthaertungseinrichtungen
FR2298308A1 (fr) * 1975-01-25 1976-08-20 Euro Hausgeraete Gmbh Dispositif d'admission d'eau et de ventilation pour un lave-vaisselle ou appareil similaire

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4307742A (en) * 1978-11-25 1981-12-29 Schrott Friedrich Wilhelm H Ion exchanger regeneration water supply control unit
FR2516070A1 (fr) * 1981-11-11 1983-05-13 Bosch Siemens Hausgeraete Adoudoucisseur d'eau pour appareils menagers, notamment pour lave-vaiselle
FR2534798A1 (fr) * 1982-10-22 1984-04-27 Bosch Siemens Hausgeraete Dispositif de distribution d'eau dans un lave-vaisselle
FR2545347A1 (fr) * 1983-05-06 1984-11-09 Bosch Siemens Hausgeraete Procede pour recuperer la chaleur perdue dans un lave-vaisselle a usage menager et machine pour la mise en oeuvre du procede
FR2652254A1 (fr) * 1989-09-22 1991-03-29 Esswein Sa Lave-vaisselle muni d'un condenseur d'humidite.
EP1120080A2 (de) * 2000-01-28 2001-08-01 BITRON S.p.A. Regelungsvorrichtung für Wasserentkalkungsgerät
EP1120080A3 (de) * 2000-01-28 2002-08-14 BITRON S.p.A. Regelungsvorrichtung für Wasserentkalkungsgerät
EP1161916A2 (de) * 2000-06-10 2001-12-12 AEG Hausgeräte GmbH Wasserführendes Haushaltsgerät und Verfahren zum Einstellen des Härtegrades einer Frischwassermenge
EP1161916A3 (de) * 2000-06-10 2002-09-25 AEG Hausgeräte GmbH Wasserführendes Haushaltsgerät und Verfahren zum Einstellen des Härtegrades einer Frischwassermenge

Also Published As

Publication number Publication date
ES477149A1 (es) 1980-06-16
FR2415449A1 (fr) 1979-08-24
DE2960281D1 (en) 1981-08-06
EP0003451B1 (de) 1981-04-29
FR2415449B1 (de) 1980-08-29

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