EP0685198B1 - Steuerungsvorrichtung zur Lieferung von unterschiedlichen Mengen an Reinigungsflüssigkeiten in einer Geschirrspülmaschine - Google Patents

Steuerungsvorrichtung zur Lieferung von unterschiedlichen Mengen an Reinigungsflüssigkeiten in einer Geschirrspülmaschine Download PDF

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Publication number
EP0685198B1
EP0685198B1 EP95201375A EP95201375A EP0685198B1 EP 0685198 B1 EP0685198 B1 EP 0685198B1 EP 95201375 A EP95201375 A EP 95201375A EP 95201375 A EP95201375 A EP 95201375A EP 0685198 B1 EP0685198 B1 EP 0685198B1
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EP
European Patent Office
Prior art keywords
transfer
tank
control device
level
liquid
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EP95201375A
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English (en)
French (fr)
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EP0685198A1 (de
Inventor
Silvano Fumagalli
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Candy SpA
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Candy SpA
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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
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0023—Water filling
    • 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
    • A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
    • 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
    • A47L15/4229—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
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/09—Water level
    • 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
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/01—Water supply, e.g. opening or closure of the water inlet valve

Definitions

  • the present invention relates to a control device for feeding differentiated volumes of washing liquid in a dishwasher.
  • Standard dishwashers available on the market are sized, both in terms of capacity of the dish Loading racks and the quantities of washing Liquid, electrical energy and detergent required, to wash loads of twelve table settings.
  • the dishwasher can be used for washing smaller loads, for example six table settings, however this does not Lead to any saving in the washing liquid required by the dishwasher, nor in the necessary electrical energy required for heating thereof, the detergent etc.
  • the Italian patent application no. MI94A000353 describes a device for controlling the level of the washing Liquid in a dishwasher (assumed to be for twelve table settings) comprising a tank with capacity equal to half the quantity of Liquid (5 litres) to be fed into the washing tub, which is supplied via a feed solenoid valve.
  • a siphon triggers when the tank has been filled in order to transfer the washing liquid from the tank to a transfer recipient with smaller capacity compared to the tank, and de-triggers when the tank has been completely emptied.
  • the transfer recipient is connected to the washing tub via another siphon, and a pressure chamber is related thereto and connected to a pressure switch which is actuated when the level of the liquid in the transfer recipient exceeds a predetermined level to cause closure of the feed solenoid valve.
  • the 5 litres of Liquid required for washing twelve table settings are fed by two successive fillings of the tank.
  • Such a device allows highly accurate control of the quantity of Liquid fed into the washing tub due to the fact that said control is volumetric (the triggering of the programming device to cause closure of the feed solenoid valve is linked to filling of the tank, which has a very precise and known volume).
  • GB-A-2 139 084 discloses a control device substantially as recited in the preamble of claim 1.
  • the object of the present invention is that of providing a control device which allows the feed of differentiated volumes of washing Liquid in a dishwasher, so that with a standard dishwasher for twelve table settings it is possible to wash also six table settings, at the same time achieving a saving in the consumption of washing liquid, electrical energy for heating thereof and detergent.
  • This device must also allow a sufficiently accurate control of the volumes of Liquid fed, in order to ensure a constant reduction in consumptions.
  • this object is achieved thanks to a control device for feeding differentiated volumes of washing liquid in a dishwasher as set forth in claim 1.
  • washing liquid, electrical energy and detergent which are differentiated and calibrated to the effective load of dishes to be washed.
  • a dishwasher for twelve table settings can thus be used to wash six table settings, with a consequent saving, for a complete washing cycle, of washing liquid, electrical energy and detergent.
  • Experimental tests have shown that this saving can be quantified at approximately 27% washing liquid, 27% electrical energy (from circa 1.6 kW for twelve table settings to approximately 0.9 kw for six table settings), 30% detergent, 30% salts for regenerating decalcifying resins, and a reduction of approximately 13% of the cycle time.
  • FIG. 1 in Figure 1 denotes a washing tub of a dishwasher; the tub 1 is enclosed inside a frame 2 forming the external casing of the dishwasher. Mounted on said frame 2 is a feed solenoid valve 3 whereto a pipe 101 for feeding clean water is connected.
  • the washing tub 1 has a base 4 which converges towards a collection sump or basin 5 positioned below the tub 1 in a cavity 6 between the base 4 of the tub 1 and a base 7 of the frame 2. As shown in Figure 2, the tub 1 Leads into the collection basin 5 through an aperture 8 covered by a perforated plate 9 with filter functions, which prevents the passage of washing residues.
  • a drain pipe 100 is connected to the collection basin 5 and in turn to a drain pump not shown in that it is known.
  • Also provided inside the washing tub 1 are two spraying rotors (not shown in that they are known), fed by one (or two) motor pump(s) (also not shown in that known) connected to the collection basin 5.
  • FIG 1 also shows a control device according to a first embodiment of the present invention.
  • the control device comprises a tank 10, a first transfer recipient 11, and a second transfer recipient 12, connected by siphon pipes 13, 14 and 15.
  • the whole is usefully housed in a cavity 16 between a lateral vertical wall 17 of the washing tub 1 and a lateral vertical wall 18 of the frame 2 (Fig. 2).
  • the tank 10, the two transfer recipients 11 and 12, and the siphon pipes 13, 14 and 15 are made by means of the technique of blow-moulding and form a single part. Nevertheless the control device can be made in several, separate parts, connected one to the other by pipes.
  • the tank 10 substantially has the shape of a rectangular parallelepiped and a capacity equal to the volume of water required by the dishwasher in a single feed phase of a conventional washing cycle with full load (i.e. for twelve table settings). Since this volume of water is typically 5 litres, the tank 10 has a corresponding capacity of 5 litres.
  • the tank 10 is provided on the base with an inlet mouth 19 through which decalcified water, coming from a decalcification assembly 20 (in itself known and which will be described hereinbelow), is fed to the tank 10.
  • the pipe connecting the decalcification assembly 20 and the tank 10 is schematically denoted in Figure 1 by line 21.
  • the siphon pipe 14 is also connected to the base of the tank 10, and flows into the first transfer recipient 11, which is positioned at a lower height from the base 7 of the frame 2 than the height of the tank 10. Also connected to the base of the tank 10, via a solenoid valve 90, is a conduit 22 which also flows into the first transfer recipient 11. The siphon pipe 13, also flowing into the first transfer recipient 11, is however connected to the top of the tank 10. Also connected to the top of the tank 10 is a breather pipe 200 whose upper aperture is positioned at a greater height than the elbow of the siphon pipe 13.
  • the first transfer recipient 11 has a much smaller capacity than the tank 10 and consists of two chambers 24 and 25, of different capacity, divided by a baffle 26 and only communicating on the common base 27.
  • a capillary pipe 28 is connected at the top of the chamber 25, with smaller capacity and forming a pressure chamber, and is also connected at the other end to a pressure switch 29, which communicates with a programming device or timer (not shown) which controls operation of the dishwasher.
  • the siphon pipe 15 Connected on the base 27 of the first transfer recipient 11, at the chamber 24, is the siphon pipe 15, which flows into the second transfer recipient 12; it is shaped so as to form below a siphon 30, and is connected, via a hose 31, to the collection basin 5.
  • the end of the pipe 31 connected to the second transfer recipient 12 is positioned at a greater height than the end connected to the basin 5 in order to avoid backflows of water from the basin 5 into the recipient 12. For the same reason the pipe 31 is bent to form also a siphon (Fig. 2).
  • a conduit 32 connects the top of the second transfer recipient 12 to the top of the chamber 24 of the first transfer recipient 11, to ensure that they have the same internal pressure.
  • a conduit 33, formed between the curve of the siphon pipe 14, connects the top of the chamber 24 to the outside, via a hole 34: in this way the pressure in the chamber 24 and in the second transfer recipient 12 is always equal to atmospheric pressure.
  • the second transfer recipient 12 is also provided with a chamber 35 of small capacity, separated from a main chamber by a baffle 36 and forming a pressure chamber.
  • a capillary pipe 37 branches off at the top of the chamber 35 and is connected at the opposite end to a pressure switch 38 for pneumatically blocking the solenoid valve 3. This connection is schematically indicated in Figure 1 by the dotted and dashed line 40.
  • the clean water coming from the water supply system is sent, in accordance with current regulations, to a so-called "air break" assembly in itself known.
  • This assembly consists of a single block and is housed in another cavity similar to the cavity 16 of Figure 2 (given the limited width of the cavity 16, the tank 10 occupies virtually all the same cavity 16).
  • the function of the air break assembly is to prevent the water in the water supply circuit of the dishwasher from being aspirated by the piping of the water supply system should vacuums be formed in the latter.
  • It is substantially piping 41 comprising a vertical delivery section 42, an upturned “U” delivery section 43, an upturned “U” return section 44 and a vertical return section 45.
  • a hole 46 is formed in the pipe section 44, below which a container 47 is positioned with volume of approximately 350 cc wherein the small quantity of water which falls from the hole 46 is collected for subsequent use by the decalcification assembly 20 during so-called regeneration of the decalcifying resins.
  • the decalcification assembly 20 comprises a segment 48 containing decalcifying resins and a segment 49 containing salts for regenerating the decalcifying resins.
  • the water coming from the section 45 of the piping 41 passes through the resins (a connection schematically indicated by the line 102) and from here is sent, decalcified, through the conduit 21, to the tank 10.
  • the water which is collected in the container 47 is sent, via a conduit represented by the line 50, to the segment 49 containing the salts in order to form a mixture of salted water for regenerating the decalcifying resins.
  • the air break assembly also comprises a device for condensating the steam which is produced in the washing tub 1, and which leaves the Latter by passing through a conduit 51.
  • the steam is partially condensated on the walls 52 of the container 47, before leaving the dishwasher through a breather hole 53.
  • the programming device causes opening of the solenoid valve 3; the water flows along the piping 41 of the air break assembly into the segment 48 of the decalcifying device 20, decalcifies, and is sent to the tank 10.
  • the solenoid valve 90 is kept closed, and the tank 10 is gradually filled, together with the rising section 103 of the siphon pipe 14.
  • L1 the trigger level of the siphon 14 denoted by L1
  • the latter causes a rapid transfer of water from the tank 10 to the first transfer recipient 11. If the rate of flow of water entering the tank 10 is greater than the flow rate of the siphon 14, even after triggering of the latter the level of water in the tank 10 continues to rise.
  • the siphon 13 also triggers, which causes an increase in the flow rate required for transferring water to the recipient 11. In this way a high response speed of the control device is guaranteed.
  • the water is distributed in the two chambers 24 and 25.
  • the increase in the level of the water causes a gradual increase in the air pressure, and when this pressure exceeds a predetermined level (corresponding to a level of water L2) the pressure switch 29 is actuated and sends the command to close the solenoid valve 3 to the programming device.
  • a predetermined level corresponding to a level of water L2
  • the pressure switch 29 is actuated and sends the command to close the solenoid valve 3 to the programming device.
  • a predetermined level corresponding to a level of water L2
  • the siphon 15 triggers and transfers the water into the second transfer recipient 12.
  • the siphon 14 remains triggered until the tank 10 has been completely emptied, and the siphon 15 remains triggered until the first transfer recipient 11 has been emptied.
  • the two siphons 14 and 15 remain triggered therefore until the water contained in the tank 10 has been completely transferred into the washing tub 1, via the siphon 30 and the pipe 31. In this way the 5 litres of water necessary for washing twelve table settings are fed into the washing tub, with a volumetric control of the quantity of water fed.
  • the pressure chamber 35 of the second transfer recipient 12 and the block pressure switch 38 form a safety control of the level of water in the tub 1 in order to prevent overflows following excessive feeding of water caused for example by a fault in the programming device or by manual interventions thereon which alter the predetermined operating sequence (for example setting the programming device at feed start).
  • the block pressure switch 38 is actuated, and the solenoid valve 3 is forced to close.
  • the programming device causes the timed opening of the solenoid valve 3, so as to feed into the tank 10 a volume of water of approximately 3.5 Litres or, as preferred, a slightly larger volume (level L5 in Figure 1).
  • the control on the quantity of water fed in this way is not very precise, in that it is affected by the unforeseeable variations in pressure and flow rate of the water supply system.
  • the programming device After closure of the solenoid valve 3, the programming device causes the timed opening of the solenoid valve 90, which opens the conduit 22 through which the water passes from the tank 10 to the first transfer recipient 11.
  • the siphon 15 triggers and transfers the water to the second transfer recipient 12 and, from here, into the collection basin 5.
  • the timed control of the opening of the solenoid valve 90 allows accurate control of the quantity of water transferred from the tank 10 to the washing tub 1, since the flow rate of the conduit 22 is known, like the pressure of the water column in the tank 10. Unlike the previous case, the control of the quantity of 3.5 litres is therefore timed, and not volumetric.
  • the water for rinsing the resins is fed in a similar way.
  • the phase of rinsing the decalcifying resins is performed after the aforementioned regeneration of the same by mixing water and salts.
  • the quantity of water required for full rinsing of the resins contained in the segment 48 of the decalcifying device is approximately 2.5 Litres.
  • the programming device commands the timed opening of the solenoid valve 3, so as to cause feeding into the water circuit of the dishwasher of a quantity of approximately 2.5 litres (which means a level L6 in the tank 10).
  • the passage of the water into the decalcifying device 20 rinses the decalcifying resins; the rinsing water enters the tank 10; this quantity of water is drained as before by means of the timed opening of the solenoid valve 90. It is however possible to use a smaller quantity of water than 2.5 litres for rinsing the resins, in proportion to the quantity of salt used for regenerating the same (which in the case of a cycle of washing of six table settings can be smaller than that used for twelve table settings).
  • FIG. 3 shows a control device according to a second embodiment of the invention.
  • the control device in addition to the siphon pipes 13 and 14, and the first transfer recipient 11 of the previous embodiment, the control device also comprises: a siphon 14' similar to the siphon 14, but with a trigger level L1' corresponding to the reaching of a volume of water in the tank 10 of 3.5 litres; an additional first transfer recipient 11', wherein the siphon pipe 14' flows; a siphon pipe 13', similar to the pipe 13, but flowing into the transfer recipient 11'.
  • the transfer recipient 11' is identical to the transfer recipient 11, comprising two chambers 24' and 25', chamber 25' being a pressure chamber connected, by means of a capillary pipe 28', to a pressure switch 29' which, like the pressure switch 29, communicates with the programming device.
  • a siphon pipe 15' connects the base of the chamber 24' with the second transfer recipient 12 (a single one for the two volumetric measurement circuits), via a solenoid valve 91 and a conduit 92.
  • a breather pipe 33' similar to the pipe 33, is also provided and which leads to the outside through a hole 34'.
  • the solenoid valve 91 When the dishwasher is programmed to wash a load of twelve table settings, the solenoid valve 91 is kept closed, and the signal of the pressure switch 29' to the programming device is inhibited.
  • the working of the control device is identical to that of the control device of Figure 1, since although when the water in the tank 10 exceeds the trigger level L1' of the siphon 14' the latter transfers water into the recipient 11', the solenoid valve 91 does not allow the passage of water into the second transfer recipient 12.
  • the solenoid valve 91 During the phase of discharging of the water from the tub 1, the solenoid valve 91 is opened to allow the discharge of the small quantity of water which has accumulated during filling of the tank 10 in the recipient 11'.
  • the solenoid valve 91 When however the dishwasher is programmed to wash a load of six table settings, the solenoid valve 91 is opened, and the signal of the pressure switch 29' is enabled.
  • the siphon 14' triggers, the water is transferred rapidly into the recipient 11', and when the pressure of the air in the pressure chamber 25' exceeds a predetermined level (corresponding to the Level of water L2'), the pressure switch 29' signals to the programming device to close the feed solenoid valve 3.
  • the level of water in the chamber 24' of the recipient 11' exceeds the trigger level L3' of the siphon 15', the transfer of the water into the second transfer recipient 12 (through the conduit 92) starts and from the latter, in the manner described, into the collection basin 5.
  • the procedure for rinsing the decalcifying resins is the same as for a feed of 3.5 litres.
  • the programming device performs a timed control on the opening of the solenoid valve so that, after actuation of the pressure switch 29', it remains open for the time required for causing the transfer of 2.5 Litres of water.
  • the litre of water approximately which remains in the tank 10 (level LR of Figure 3) is to be reused in a subsequent feed phase.
  • FIG. 4 shows a control device according to a third embodiment of the invention, which also allows mounting of the air break assembly in the single cavity 16 of the dishshwasher and, preferably, the formation in one single piece of the air break and control device, according to the solution described in the aforementioned Italian patent application No. MI94A000353.
  • the tank 10 requires an appropriate configuration in order to Leave in the cavity 16 a space sufficient for housing the air break assembly.
  • the special configuration of the tank 10 forces changes to be made to the control device in relation to the previous embodiments.
  • the circuit for controlling the feed of 5 litres of water comprises the siphon pipe 14, the first transfer recipient 11 having a first chamber 24 connected by a siphon pipe 15 to the second transfer recipient 12 (a single one for the two volumetric circuits), and a second chamber 25 whereto a pressure switch 29 is connected.
  • the circuit for controlling the feed of 3.5 litres comprises the siphon pipe 14', the first transfer recipient 11' having a first chamber 24' connected via a solenoid valve 91 and a conduit 92 to the second transfer recipient 12, and a second chamber 25' whereto a pressure switch 29' is connected.
  • the siphon pipe 14 triggers when the tank 10 is full, while the siphon 14' triggers when 3.5 litres of water have been fed into the tank (divided between a first portion 80 and a second portion 81 of the tank 10).
  • the siphons 14 and 14' do not lead into the base of the tank 10, their mouths being positioned at a level H in relation to the base of the tank 10.
  • the volume of the portion 80 of the tank 10 between its base and the level H is 1.5 Litres, while the volume of the remaining portion 81 of the tank 10 is 3.5 litres.
  • the base of the tank 10 leads, via a solenoid valve 93, to the second transfer recipient 12.
  • the solenoid valve 91 When the dishwasher is programmed to wash a load of twelve table settings, the solenoid valve 91 is kept closed and the pressure switch 29' is disabled. The solenoid valve 93 is also initially kept closed.
  • the programming device causes the opening of the feed solenoid valve 3 to feed water into the tank 10.
  • the water in the tank 10 reaches the trigger level L1 of the siphon 14, the water is transferred into the respective transfer recipient 11 (as in the case of the device of Figure 3, the siphon 14' triggers before the siphon 14, and transfers water into the respective first transfer recipient 11'; since however the solenoid valve 91 is closed, the water remains in the recipient 11').
  • the pressure switch 29 When the pressure of the air in the pressure chamber 25 reaches a predetermined value (corresponding to the level of water L2), the pressure switch 29 is actuated and signals to the programming device to close the feed solenoid valve 3.
  • the water is transferred to the second transfer recipient 12 and from the latter to the collection basin 5, in the manner described.
  • the siphon 14 de-triggers.
  • the transfer of the remaining 1.5 Litres of water in the portion 80 of the tank 10 is completed by means of the timed opening of the solenoid valve 93, commanded by the programming device.
  • the solenoid valve 91 is opened to drain the water which had accumulated in the recipient 11'.
  • the solenoid valve 91 When however the dishwasher is programmed to wash a load of six table settings, the solenoid valve 91 is initially kept closed and the sensor 29' is enabled. As before, the solenoid valve 93 is also initially kept closed.
  • the programming device causes opening of the feed solenoid valve 3 to feed water to the tank 10.
  • the water in the tank 10 reaches the trigger level L1' of the siphon 14', the water is transferred into the respective transfer recipient 11'.
  • the pressure switch 29' signals to the programming device to close the feed solenoid valve 3.
  • the programming device commands the opening of the solenoid valve 91, and the water is transferred from the recipient 11' to the recipient 12 and, from the latter, in the manner described, into the washing tub 1.
  • the siphon 14' de-triggers.
  • the transfer of the remaining 1.5 litres of water contained in the portion 80 of the tank 10 is completed by means of the timed opening of the solenoid valve 93.
  • control on the feed of 5 litres and 3.5 litres of water is both volumetric and timed.
  • FIG. 5 shows a control device according to a fourth embodiment of the invention which, as in the case of the device of Figure 4, allows assembly of the control device and air break assembly in the same cavity 16.
  • the tank 10 has the same configuration as that of the device of Figure 4. Unlike the previous case, however, only one volumetric measurement circuit is provided, comprising the siphon pipe 14, the first transfer recipient 11 and the second transfer recipient 12, as in the case of Figure 1.
  • the siphon 14 leads into the tank 10 at a level H in relation to the base of the latter.
  • the volume of the portion 80 of the tank 10 below the level H is 1.5 Litres
  • the volume of the portion 81 of the tank 10 above the level H is 3.5 litres, for a total of 5 Litres.
  • the solenoid valve 93 is also provided and which connects the base of the tank 10 to the second transfer recipient 12.
  • the control by the pressure switch 29 is sufficient, in that when the water in the tank 10 reaches the trigger level L1 of the siphon 14 the feed solenoid valve 3 is closed, and the siphon 14 transfers a quantity of water equal to 3.5 Litres from the tank 10 to the first transfer recipient 11, until the water in the tank 10 falls below the level H.
  • the procedure for feeding 5 litres of water is the same as in the previous case.
  • the programming device After de-triggering of the siphon 14 the programming device causes the timed opening of the solenoid valve 93, so as to transfer the remaining 1.5 litres of water contained in the portion 80 of the tank 10 to the second transfer recipient 12.
  • control on the feed of 3.5 litres of water is fully volumetric, while the control on the feed of 5 litres is partially volumetric and partially timed.
  • a two-way solenoid valve 95 whereto the conduit 21 coming from the decalcification assembly 20 is also connected as well as a further conduit 96 flowing into the second transfer recipient 12.
  • the solenoid valve 95 allows the passage from the conduit 21 into the tank 10.
  • the solenoid valve 95 directly connects the conduit 21 with the conduit 96. In this way the water for rinsing the resins does not enter the tank 10, but is sent directly to the washing tub 1, wherefrom it is then drained.

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Claims (26)

  1. Steuervorrichtung zur Zuführung von unterschiedlichen Waschflüssigkeitsmengen bei einer Geschirrspülmaschine zum Spülen von unterschiedlichen eingebrachten Geschirrmengen, welche einen Behälter (10) mit einem Fassungsvermögen aufweist, welches so groß wie ein erstes Flüssigkeitsvolumen ist, welches einer Waschwanne (1) der Geschirrspülmaschine zuzuführen ist, und über eine Zufuhrventileinrichtung (3) einzuspeisen ist, mit einer ersten Weiterleitungseinrichtung (14) zum Weiterleiten wenigstens eines Anteils des ersten Waschflüssigkeitsvolumens von dem Behälter zu einer Waschwanne, und einer zweiten Einrichtung (90; 14'; 91, 93), welche alternativ oder anschließend zu der ersten Weiterleitungseinrichtung (14) gewählt werden kann, um von dem Behälter (10) zu der Waschwanne (1) ein zweites Flüssigkeitsvolumen weiterzuleiten, welches kleiner als das erste Volumen ist, dadurch gekennzeichnet, daß die erste Weiterleitungseinrichtung (14) wenigstens eine erste Syphonleitung (14) aufweist, welche eine gestürtzt U-förmige Rohrleitung hat, welche einen Einlaß an dem Behälter (10) besitzt, ferner einen Schaltpegelstand (L1) im wesentlichen an einer Oberseite des Behälters (1) und einen Auslaß aufweist, welcher niedriger als der Einlaß an einem Weiterleitungs-Aufnahmebehälter (11) mit kleinerem Fassungsvermögen als der Behälter (10) liegt, und einerseits mit der Waschwanne (1) über eine weitere Weiterleitungseinrichtung (15) verbunden ist, so daß die erste Syphonleitung (14) automatisch schaltet, wenn das in dem Behälter (10) enthaltene Flüssigkeitsvolumen ein erstes Volumen erreicht und automatisch eine Deaktivierung erfolgt, wenn der wenigstens keine Anteil des Flüssigkeitsvolumens von dem Behälter (10) in die Wanne (1) über die erste Weiterleitungseinrichtung (14) und die weitere Weiterleitungseinrichtung (15) weitergeleitet worden ist, der erste Weiterleitungs-Aufnahmebehälter (11) mit einer ersten Druckschalterdetektoreinrichtung (25, 28, 29) verbunden ist, welche eine erste Druckkammer (25), welche zu dem ersten Weiterleitungs-Aufnahmebehälter (11) führt, und einen ersten Druckschalter (20) aufweist, welcher betätigt wird, wenn der zu dem ersten Weiterleitungs-Aufnahmebehälter (11) über die erste Syphonleitung (14) weitergeleitete Flüssigkeitspegel einen ersten Pegelstand (L2) überschreitet, um eine Schließung der Zufuhrventileinrichtung (3) zu bewirken.
  2. Steuervorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß wenigstens ein Anteil des ersten Flüssigkeitsvolumens gleich dem gesamten ersten Flüssigkeitsvolumen in dem Behälter (10) ist.
  3. Steuervorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die weitere Weiterleitungseinrichtung (15) eine weitere Syphonleitung (15) aufweist, welche von dem ersten Weiterleitungs-Aufnahmebehälter (11) abgeht und automatisch geschaltet wird, wenn der Flüssigkeitspegel weitergeleitet zu dem ersten Weiterleitungs-Aufnahmebehälter (11) einen zweiten vorbestimmten Pegelwert (L3) überschreitet, welcher größer als der erste Pegelwert (L2) ist.
  4. Steuervorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die weitere Syphonleitung (15) in einen zweiten Weiterleitungs-Aufnahmebehälter (12) mündet, welcher in leitender Verbindung mit der Waschwanne (1) steht.
  5. Steuervorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß der zweite Weiterleitungs-Aufnahmebehälter (12) mit einer zweiten Druckschalter-Detektoreinrichtung (35, 37, 38) verbunden ist, welche derart eingerichtet ist, daß eine Schließung der Zufuhrventileinrichtung (3) bewirkt wird, wenn der Flüssigkeitspegel in der Waschwanne (1) einen vorbestimmten Sicherheitspegel überschreitet.
  6. Steuervorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die zweite Weiterleitungseinrichtung (90; 14, 91, 93) eine Ventileinrichtung (90) aufweist, welche derart gesteuert werden kann, daß das zweite Flüssigkeitsvolumen von dem Behälter (10) zu der Waschwanne (1) weiter befördert werden kann.
  7. Steuervorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die Ventileinrichtung (90) den Bodenbereich des Behälters (10) mit einer Leitung (22) verbindet, welche in strömungsleitender Verbindung mit dem ersten Weiterleitungs-Aufnahmebehälter (11) steht.
  8. Steuervorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß sie in einem Hohlraum (16) zwischen einer quergerichteten, vertikalen Wand (17) der Waschwanne (1) und einer quer gerichteten, vertikalen Wand (18) eines Außenrahmens (2) der Geschirrspülmaschine untergebracht ist.
  9. Steuervorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die zweite Weiterleitungseinrichtung (90; 14'; 91, 93) wenigstens eine zweite Syphonleitung (14') aufweist, welche von dem Behälter (10) abgeht, um automatisch eine Schaltung zu bewirken, wenn das zweite Flüssigkeitsvolumen in dem Behälter (10) aufgenommen ist, und um eine Ausschaltung zu bewirken, wenn das zweite Flüssigkeitsvolumen vollständig von dem Behälter (10) weitergeleitet worden ist.
  10. Steuervorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß die weitere Weiterleitungseinrichtung (15) eine weitere Syphonleitung (15) aufweist, welche von dem ersten Weiterleitungs-Aufnahmebehälter (11) abgeht, welche automatisch geschaltet wird, wenn der zu dem ersten Weiterleitungs-Aufnahmebehälter (11) weitergeleitete Flüssigkeitspegel einen zweiten vorbestimmten Pegelstand (L3) überschreitet, welcher größer als der ersten Pegelstand (L2) ist, die zweite Syphonleitung (14') eine Ableitung zu dem zweiten Weiterleitungs-Aufnahmebehälter (11') mit einem kleineren Fassungsvermögen als der Behälter (10) bildet, daß eine zweite Druckschalterdetektoreinrichtung (25', 28', 29') vorgesehen ist und betätigt wird, wenn der zu dem zweiten Weiterleitungs-Aufnahmebehälter (11') weitergeleitete Flüssigkeitspegelstand einen dritten vorbestimmten Pegelstand (L2') überschreitet, um ein Schließen der Zufuhrventileinrichtung (3) zu bewirken, daß eine weitere Syphonleitung (15') vorgesehen ist, welche von dem zweiten Weiterleitungs-Aufnahmebehälter (11') und der Waschwanne (1) abgeht, welche eine automatische Schaltung vornimmt, wenn der zu dem zweiten Weiterleitungs-Aufnahmebehälter (11) weitergeleitete Flüssigkeitspegelstand einen vierten vorbestimmten Pegelstand (L"') überschreitet, welcher größer als der dritte Pegelstand (L") ist.
  11. Steuervorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß die zweite Druckschalter-Detektoreinrichtung (25', 28', 29') eine zweite Druckkammer (25'), welche zu dem zweiten Weiterleitungs-Aufnahmebehälter (11') führt, und einen zweiten Druckschalter (29') aufweist.
  12. Steuervorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß die zweite Weiterleitungseinrichtung (90, 14', 91, 93) eine Ventileinrichtung (91) aufweist, welche mit der weiteren Syphonleitung (15') verbunden ist, und eine Auslösung zur Schaltung derselben gestattet.
  13. Steuervorrichtung nach Anspruch 12, dadurch gekennzeichnet, daß ein dritter Weiterleitungs-Aufnahmebehälter (12) vorgesehen ist, in den eine Abgabe über die weitere Syphonleitung (15) und eine Leitung (92) erfolgt, welche mit einem Ausgang der Ventileinrichtung (91) verbunden ist, welche zu der Waschwanne (1) führt.
  14. Steuervorrichtung nach Anspruch 12, dadurch gekennzeichnet, daß der dritte Weiterleitungs-Aufnahmebehälter (12) mit einer dritten Druckschalter-Detektoreinrichtung (35, 37, 38) verbunden ist, welche eine Schließung der Zufuhrventileinrichtung (3) gestattet, wenn der Flüssigkeitspegel in der Waschwanne (1) einen vorbestimmten Sicherheitspegel überschreitet.
  15. Steuervorrichtung nach einem der Ansprüche 9 bis 14, dadurch gekennzeichnet, daß in einem Hohlraum (16) zwischen einer quergerichteten vertikalen Wand (17) der Waschwanne (1) und einer quergerichteten vertikalen Wand (18) eines Außenrahmens (2) der Geschirrspülmaschine angeordnet ist.
  16. Steuervorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die zweite Weiterleitungseinrichtung (90; 14, 91, 93) wenigstens eine zweite Syphonleitung (14') aufweist, welche von dem Behälter (10) abgeht, um automatisch eine Schaltung vorzunehmen, wenn das zweite Flüssigkeitsvolumen in dem Behälter (10) aufgenommen ist, und eine Abschaltung vornimmt, wenn der Anteil des zweiten Flüssigkeitsvolumens von dem Behälter (10) weitergeleitet worden ist, sowie eine erste Ventileinrichtung (93) für die Weiterleitung der restlichen Flüssigkeit von dem Behälter (10) vorgesehen ist.
  17. Steuervorrichtung nach Anspruch 16, dadurch gekennzeichnet, daß die weitere Weiterleitungseinrichtung (15) eine dritte Syphonleitung (15) aufweist, welche von dem ersten Weiterleitungs-Aufnahmebehälter (11) abgeht und automatisch eine Schaltung vornimmt, wenn der zu dem ersten Weiterleitungs-Aufnahmebehälter (11) weitergeleitete Flüssigkeitspegel einen zweiten Pegelstand (L3) überschreitet, welcher größer als der erste Pegelstand (12) ist, und daß die zweite Syphonleitung (14') eine Ableitung zu dem zweiten Weiterleitungs-Aufnahmebehälter (11') mit einem kleineren Fassungsvermögen als der Behälter (10) vornimmt, wobei eine zweite Druckschalter-Detektoreinrichtung (25', 28', 29') vorgesehen ist und eine Aktivierung gestattet, wenn der zu dem zweiten Weiterleitungs-Aufnahmebehälter (11') weitergeleitete Flüssigkeitspegel einen dritten vorbestimmten Stand (L2') überschreitet, um eine Schließung der Zufuhrventileinrichtung (3) und der zweiten Weiterleitungseinrichtung (90, 14, 91, 93) zu bewirken, welche die zweite Ventileinrichtung (91) aufweist, welche mit dem zweiten Weiterleitungs-Aufnahmebehälter (11') verbunden ist, welcher aktiviert werden kann, um ein Flüssigkeitsvolumen von dem zweiten Weiterleitungs-Aufnahmebehälter (11') zu der Waschwanne (1) weiter zu leiten.
  18. Steuervorrichtung nach Anspruch 17, dadurch gekennzeichnet, daß die zweite Druckschalter-Detektoreinrichtung (25', 28', 29') eine zweite Druckkammer (25') aufweist, welche zu dem zweiten Weiterleitungs-Aufnahmebehälter (11') führt und einen zweiten Druckschalter (29') umfaßt.
  19. Steuervorrichtung nach Anspruch 17, dadurch gekennzeichnet, daß sie einen dritten Weiterleitungs-Aufnahmebehälter (12) aufweist, in den eine Ableitung von der dritten Syphonleitung (15) und einer Leitung (92) erfolgt, welche mit dem Ausgang der zweiten Ventileinrichtung (91) verbunden ist, welche zu der Waschwanne (1) führt.
  20. Steuervorrichtung nach Anspruch 19, dadurch gekennzeichnet, daß der dritte Weiterleitungs-Aufnahmebehälter (12) mit der dritten Druckschalter-Detektoreinrichtung (35, 37, 38) verbunden ist, welche in geeigneter Weise eine Schließung der Zufuhrventileinrichtung (3) bewirkt, wenn der Flüssigkeitspegelstand der Waschwanne (1) einen dritten Sicherheitspegelstand überschreitet.
  21. Steuervorrichtung nach einem der Ansprüche 16 bis 20, dadurch gekennzeichnet, daß sie in einem Hohlraum (16) zwischen einer quer verlaufenden vertikalen Wand (17) der Waschwanne (1) und einer quer verlaufenden vertikalen Wand (18) eines Außenrahmens (2) der Geschirrspülmaschine (1) angeordnet ist.
  22. Steuervorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die zweite Weiterleitungseinrichtung (90, 14', 91, 93) eine Ventileinrichtung (93) zur Weiterleitung von Flüssigkeit von dem Behälter (10) aufweist.
  23. Steuervorrichtung nach Anspruch 22, dadurch gekennzeichnet, daß die weitere Weiterleitungseinrichtung (15) eine weitere Syphonleitung (15) aufweist, welche von dem ersten Weiterleitungs-Aufnahmebehälter (11) abgeht, und eine automatische Schaltung bewirkt, wenn der zu dem ersten Weiterleitungs-Aufnahmebehälter weitergeleitete Flüssigkeitspegel einen zweiten vorbestimmten Pegelstand (L3) überschreitet, welcher größer als der erste Pegelstand (L2) ist.
  24. Steuervorrichtung nach Anspruch 23, dadurch gekennzeichnet, daß die zweite Syphonleitung (15) in einen zweiten Weiterleitungs-Aufnahmebehälter (12) mündet, welcher zu der Waschwanne (1) führt.
  25. Steuervorrichtung nach Anspruch 24, dadurch gekennzeichnet, daß der zweite Weiterleitungs-Aufnahmebehälter (12) mit der dritten Druckschalter-Detektoreinrichtung (35, 37, 38) verbunden ist, welche in geeigneter Weise eine Schließung der Zufuhrventileinrichtung (3) bewirkt, wenn der Flüssigkeitspegelstand der Waschwanne (1) einen vorbestimmten Sicherheitspegelstand überschreitet.
  26. Steuervorrichtung nach einem der Ansprüche 22 bis 25, dadurch gekennzeichnet, daß sie in einem Hohlraum (16) zwischen einer quer verlaufenden vertikalen Wand (17) der Waschwanne (1) und einer quer verlaufenden vertikalen Wand (18) eines Außenrahmens (2) der Geschirrspülmaschine angeordnet ist.
EP95201375A 1994-05-27 1995-05-24 Steuerungsvorrichtung zur Lieferung von unterschiedlichen Mengen an Reinigungsflüssigkeiten in einer Geschirrspülmaschine Expired - Lifetime EP0685198B1 (de)

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ITMI941078 1994-05-27
ITMI941078A IT1269843B (it) 1994-05-27 1994-05-27 Dispositivo di controllo per il carico di volumi differenziati di liquido di lavaggio in una lavastoviglie

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IT233540Y1 (it) 1994-07-04 2000-01-28 Candy Spa Dispositivo per il recupero e la conservazione del liquido di lavaggio in macchine lavastoviglie,lavabiancheria e simili
IT1281062B1 (it) * 1995-12-11 1998-02-11 Prealpina Tecnoplastica Sistema per il caricamento ed il dosaggio del liquido di lavaggio in una macchina lavastoviglie.
IT1302064B1 (it) * 1998-02-25 2000-07-20 Bitron Spa Dispositivo idraulico comprendente un condotto a sifone avente unasezione strozzata.
KR101862882B1 (ko) 2010-03-18 2018-07-05 일렉트로룩스 홈 프로덕츠 코오포레이션 엔.브이. 식기세척기의 세정 터브를 물로 채우는 방법
PL2366322T3 (pl) * 2010-03-18 2016-06-30 Electrolux Home Products Corp Nv Sposób regeneracji żywicy do zmiękczania wody w zmywarce do naczyń
WO2015167574A1 (en) 2014-05-02 2015-11-05 Electrolux Home Products, Inc. Methods, systems, and apparatuses for performing a quick cycle in a dishwasher
IT202100003671A1 (it) * 2021-02-17 2022-08-17 Bitron Spa Metodo di controllo di un sistema di carico e di trattamento dell’acqua di un elettrodomestico, relativo sistema di trattamento dell’acqua e macchina lavastoviglie.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645421A (en) * 1970-02-16 1972-02-29 American Dish Service Method of adding ingredients to a dishwashing medium
WO1984001498A1 (en) * 1982-10-13 1984-04-26 Jeros Maskinfab As Procedure for dishwashing and dishwashing machine for the said procedure
DE3316685C2 (de) * 1983-05-06 1985-11-07 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Haushalt-Geschirrspülmaschine
GB8810628D0 (en) * 1988-05-05 1988-06-08 Unilever Plc Mechanical warewashing process
IT1250377B (it) * 1991-02-06 1995-04-07 Zanussi Elettrodomestici Programma di lavaggio per macchina lavatrice automatica
SE9201117D0 (sv) * 1992-04-08 1992-04-08 Svemo Mekaniska Ab Anordning foer diskmaskiner

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ITMI941078A1 (it) 1995-11-27
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ITMI941078A0 (it) 1994-05-27
DE69525789D1 (de) 2002-04-18
DE69525789T2 (de) 2002-10-02

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