Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
  • D06F39/08—Liquid supply or discharge arrangements
  • D06F39/088—Liquid supply 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

Definitions

• the present invention a water-conducting household appliance according to the preamble of claim 1.
• water switches are used to control liquid flows in water-bearing household appliance.
• water softeners serve to deliver washing or rinsing water, for example, to a first or a second rinsing chamber of two rinsing chambers.
• water softeners serve to deliver rinsing water, also called rinsing liquors, for example, alternatively to a spray arm for an upper basket or to a spray arm for a lower basket of the respective dishwasher or at the same time to both spray arms.
• a rotatable spool valve is provided in a cylindrical housing, which connects by means of a pivot tube an inlet channel with one of a plurality of drainage channels.
• the swivel tube in this case has a pivot pin, which is arranged in the manner of a ball joint in a joint socket of the inlet channel.
• a hollow cylindrical sealing member is fixed, which slides in a cylindrical concentric with the lateral surface of the housing extending guide.
• the prior art mechanical sealing device of this type is not suitable for sealing through-holes passing through a flat rotary disk with respect to fluid discharge lines facing this flat rotary disk.
• this known water switch an undesirable pressure loss in the water flow to be distributed by the deflection by means of the pivot tube occur.
• Another known water separator (DE 101 33 130 A1) consists of a in the pressure chamber of a circulating pump before branching pressure port arranged rotary valve for locking and releasing the discharge nozzle for rinsing liquid and located outside and within the pressure chamber drive for the rotary valve.
• the rotary valve in question is formed by a cylindrical member, in the cylinder wall, there are one or more apertures between one and more movable closure elements with valve function.
• the aperture openings and the closure elements are in their relative position with respect to the discharge nozzle, the Wasserzu- run- or water discharge nozzle formed so that depending on the rotation of the rotary valve, the cylinder wall opposite pressure ports are released or sealed off.
• this known sealing device is also suitable only for the sealing of openings provided in a cylinder wall.
• the prior art mechanical sealing device of this type is not suitable for sealing through-holes passing through a flat rotary disk with respect to fluid discharge lines facing this flat rotary disk.
• an unwanted pressure loss occurs in the water flow to be distributed by its deflection in the mentioned rotary valve even in this known water switch.
• the invention is therefore based on the object to provide a water-conducting household appliance, in particular a dishwasher or washing machine to provide with a water diverter with reduced pressure loss.
• the invention relates to a water-conducting household appliance, in particular dishwashing or washing machine, at least comprising a water diverter, which is formed by an adjustable fluid distributor body provided with one or more passage openings.
• the solution according to the invention is characterized in that through the respective passage openings a Wasserzu semiconductorweg with a respective Wasserab 2010weg is connected in such a way that the water flow direction is set in the through holes and out of them in substantially the same water flow direction.
• the fluid distributor body can be designed as an adjustable, in particular displaceable plate, for example, has a rectangular basic shape.
• the fluid distributor body is designed as a hub.
• the water flow direction is defined in and out of the through-openings in each case in a substantially axial direction of the rotary disk.
• the present invention provides a possibility in a relatively simple manner for forming the respective passage openings in the turntable as venturi openings in such a way that the pressure of the transitional area between the guide plates Outlet side of the respective passage opening and the inlet region in the respective Wasserabriosweg flowing water is lower than the pressure in the respective transition region surrounding surrounding area. This means that can be done in the said transition area without additional mechanical sealing devices.
• an extension part which adjoins the peripheral area of the turntable and is connected to the water supply path.
• the above-mentioned extension part is designed to extend oval in the region of the circumferential direction of the turntable. This results in the advantage of a particularly simple design possibility for the passage openings in said hub.
• the through holes in the turntable based on the Wasserzu Georgiaweg and the WasserabGermanwege each laid and shaped Einstocked Kunststoffe that in different rotational positions of the hub each have a fixed number of Wasserab adoptedwege connected to the Wasserzu Switzerlandweg for water passage is.
• the water diverter according to the present invention is contained in a household appliance, in particular in a dishwasher.
• a household appliance thus comprises the advantages that have been pointed out above with regard to the water diverter according to the invention.
• FIG. 1 is a schematic representation of a dishwasher to which the present invention is applied
• FIG. 2 is a perspective view, not to scale, of a sump device designed in accordance with the invention, as can be used in the dishwasher according to FIG. 1, FIG.
• FIG. 3 is a plan view, not to scale, of a lower part of a receptacle of a water separator connected to the sump device shown in FIG. 2, constructed in accordance with the invention;
• FIG. 4 is a bottom view, not to scale, of a flat turntable included in the receptacle of the water separator shown in FIG. 2;
• Fig. 5 is a sectional view of the hub along the registered in Fig. 4
• Fig. 6 is a plan view of the flat in Fig. 4 shown in a bottom view
• FIG. 7 in a non-scale representation of a plan view of the upper part of the receptacle shown in Fig. 2 of the water separator and
• Fig. 2 shown, formed according to the invention waterway with the arranged between the mentioned lower part and said upper part of the receptacle flat turntable.
• a dishwasher GS is shown in its sufficient for an understanding of the present invention scope.
• the dishwasher GS contains a preferably closable rinsing container, which according to FIG. 1 contains a wet area NB.
• this wet area NB is at least one dish rack - in the present case, however, two baskets are provided, namely a lower basket UK and an upper basket arranged above OK.
• a lower spray arm US is arranged, which - as indicated by spray rays - allows to deliver a rinsing liquor from its upper side to the lower basket UK and to any dishes located therein.
• the lower spray arm US rotates in a known manner due to the water pressure of the rinsing liquor discharged by him.
• an upper spray arm OS is arranged, which in a similar manner as the lower spray arm US allows a rinsing liquor from its upper side to the upper basket OK and to optionally leave it in the dishwasher - as is also indicated by spray jets.
• This upper spray arm OS also rotates as a result of the water pressure of the rinsing liquor discharged by it.
• a so-called overhead shower DB is provided, which may be formed, for example, by a rotatable spray arm which carries a rinsing liquor from its underside in the direction of the upper basket OK and thus also to the lower basket UK can deliver, as indicated in Fig. 1 by spray jets.
• the flushing liquors for the lower spray arm US, the upper spray arm OS and the overhead shower DB are provided by pipes R1, R2 and R3, respectively, from a pump pot PT which is located in the lower part of the dishwasher GS.
• the pump pot PT which preferably has a circular design in its upper region and is of a corresponding is formed a pumping device for providing the aforementioned rinsing liquors, as will be seen in more detail below.
• These rinsing liquors are first fed by water from a water supply line (not shown) connected to the dishwasher GS and after receiving a fixed amount of water by using the rinse water dispensed by the rinsing liquors.
• a sealing ring D1 is arranged between the pump pot receptacle PA and the pump pot PT inserted in it, by means of which a sealing of the region of the dishwasher GS located below the pump pot receptacle PA is ensured with respect to its wet area NB.
• this area of the dishwasher GS which is effectively a dry area, no water penetrate.
• the tubes R2 and R3 it should also be noted here that they can be provided on an actual realization of the dishwasher GS on or in the rear wall of the washing container.
• a circulation pump PU is connected to the dishwashing machine GS by the mentioned Wasserzuterrorism supplied rinse water or from the wet area NB of the pump pot PT collected rinse water of the rinse liquors receives and under pressure to the already mentioned pipes R1, R2 and R3 gives off.
• a water weir WW arranged, which is effectively integrated into or with the pump pot PT.
• This water switch WW can be controlled by a control device ST provided in the upper part of the dishwasher GS shown in FIG.
• the aforementioned control device ST is shown in FIG. 1 as a control device containing, for example, six program keys I, II, III, IV, V and VI which, by operating their program keys I to VI, allow the water diverter WW to be set to one of six different setting positions. This will be discussed further below.
• control device can be formed by a microcontroller with its own software or by a microcomputer system which has a central processing unit or CPU, a ROM program Memory, a RAM memory and interface circuits, such as UART or USART circuits containing acting as interface circuits between the program buttons I to VI and the water softening motor WM on the one hand and the CPU or CPU on the other.
• a microcontroller with its own software or by a microcomputer system which has a central processing unit or CPU, a ROM program Memory, a RAM memory and interface circuits, such as UART or USART circuits containing acting as interface circuits between the program buttons I to VI and the water softening motor WM on the one hand and the CPU or CPU on the other.
• FIG. 2 The pump pot PT is illustrated in FIG. 2 with its essential features. These devices also include the circulating pump PU already mentioned in connection with FIG. 1, which is driven by an electric pump motor PM. In addition, the devices in question also include in connection with FIG. 1 already mentioned water diverter WW, which consists of a receptacle with an upper part OT and a lower part UT. As will be seen in more detail below, in this receptacle of the water-diverter WW there is a flat turntable provided with through-holes, which can be adjusted to different setting or rotational positions by means of an electric water-motor motor WM.
• the upper area of the pumping pot PT shown in FIG. 2 - this upper area faces the wet area NB of the dishwasher GS shown schematically in FIG. 1 there is a water collecting opening AO, in the dishwasher GS through the mentioned water supply line supplied rinsing water or rinsing water 1 dispensed by the spray arms US, OS and the shower head DB as shown in FIG. 1 and can be discharged from said circulating pump PU under pressure through a shown in Fig. 2 supply pipe ZR to the water switch WW.
• the water switch WW allows according to the setting of the turntable contained in it to distribute the rinse water supplied to it through the feed tube ZR to the discharge pipes AR1, AR2 and AR3 shown in Fig. 2 in fixed combinations.
• the respective combinations are determined by operating the program keys I to VI of the control device ST shown in FIG.
• the combinations in question include the delivery of the rinsing water supplied through the supply pipe ZR to one of the discharge pipes AR1, AR2, AR3, the simultaneous delivery of said rinsing water to a plurality of the respective discharge pipes and the inhibition of such a rinsing water delivery.
• Fig. 3 is a plan view of the lower part UT of the receptacle of the water distributor WW shown in Fig. 2 is illustrated in non-scale. This lower part UT is connected directly to the feed tube ZR according to FIG.
• the outlet region of the feed tube ZR is surrounded on the upper side of the lower part UT by an extension part in the form of an oval-shaped sealing bead DW, which preferably consists of a soft-elastic plastic or rubber.
• an extension part in the form of an oval-shaped sealing bead DW which preferably consists of a soft-elastic plastic or rubber.
• On the upper side of the sealing bead DW shown in Fig. 3 is the already mentioned, through-holes having flat turntable, which is shown in FIGS. 4, 5 and 6, so sealingly that in each adjustment or rotational position between the sealing bead DW and the respective turntable no or no appreciable water leakage - or generally no fluid leakage - takes place.
• FIG. 4 illustrates, in a representation not to scale, a bottom view of the above-mentioned rotary disk DR, which is contained in the water diverter WW and which is rotatable by the water diverter motor WM shown in the perspective view according to FIG.
• the turntable DR which is preferably made of a solid material or a viscoelastic plastic, has a number of here round through-holes DO1, DO2, DO3, DO4, DO5, DO6 and DO7, which in accordance with different tasks to be delivered by each of them Flushing liquors are also designed to be different sizes.
• Each of the through-holes DO1, DO2, DO3, DO4, DO5, DO6 and DO7 is associated with its own inlet region EB1, EB2, EB3, EB4, EB5, EB6 and EB7.
• a center hole ML with which the relevant rotary disk DR can be received by a drive shaft, which can be driven by the water exchange motor WM shown in FIG.
• the respective inlet regions EB1 to EB7 are shaped so that, in cooperation with the sealing bead DW illustrated in FIG. 3, they allow a respective fixed combination of the through-openings DO1 to DO7 to be positioned for a flushing water passage or also for a barrier of such a flushing water passage, as described below will be more apparent.
• all inlet regions EB1 to EB7 are provided with surrounding borders which protrude from the turntable underside.
• the individual inlet regions EB1 to EB7 are distinguished from each other and therefore can each abut against the sealing bead DW of the illustrated in Fig. 2 lower part UT of the receptacle of the water diverter WW and receive supplied from the supply pipe ZR rinse water.
• the rotary disk DR is illustrated in more detail.
• the through-openings DO1 and DO5 with their inlet regions EB1 and EB5 and the center hole ML are illustrated in greater detail.
• the inlet regions EB1 and EB5 associated with the through-openings DO1, DO5 are each funnel-shaped.
• the thickness of the rotary disc DR is in the range between 5mm and 20mm, preferably about 12.5mm.
• the just mentioned funnel-shaped design has a Venturi effect for the respectively through the respective through-holes DO1, DO5 from their inlet regions EB1 and EB5 forth respectively supplied rinse water result. The effect of the venturi effect in question will be discussed in more detail below.
• FIG. 6 shows the turntable DR shown in a bottom view in FIG. 4 from its top side.
• the passage openings DO1 to DO7 and the center hole ML can be seen.
• the passage opening DO1 and the passage opening DO5 are used to deliver a rinsing liquor to the discharge pipe AR1 shown in FIG. 2 and thus for delivery to the lower spray arm US according to FIG. 1.
• the passage openings DO2, DO3 and DO7 serve to deliver a rinsing liquor to the discharge pipe 1
• the passage openings DO3 and DO6 serve to deliver a rinsing liquor to the discharge pipe AR3 according to FIG. 2 and thus for delivery to the overhead shower DB according to FIG. 1
• FIG. 1 In FIG.
• the representation of the positions of the through-openings DO3 and DO6 was indicated in a total of six different setting or rotational positions P1, P2, P3, P4, P5 and P6, in which the rotary disc DR passes through the water-softening motor WM shown in FIG. 2 in 60 ° increments around the center hole ML is adjustable.
• the rotary disc DR has six different effective ranges WB1, WB2, WB3, WB4, WB5 and WB6, which generally extend over an angle range between approximately 25 ° and 40 °.
• the feed tube ZR according to FIG. 2 is not connected to any of the passage openings DO1 to DO7.
• a Spülflotten- or water transmission from the feed tube ZR to the discharge pipes AR1, AR2, AR3 shown in FIG. 2 is locked.
• the dishwasher GS is thus in the OFF state.
• the passage openings DO1 and DO2 are connected between the feed tube ZR according to FIG. 2 and the discharge tubes AR1 and AR2 according to FIG. 2 within the associated effective area WB2.
• flushing liquors are simultaneously supplied to the lower spray arm US and the upper spray arm OS according to FIG.
• Fig. 7 illustrates in a not to scale schematic representation of the upper part OT of the receptacle shown in Fig. 2 of the water diverter WW consisting of the already explained with reference to FIG. 3 lower part UT and the upper part OT.
• the three aforementioned exhaust pipes AR1, AR2 and AR3 can be seen in their relative position to each other. Based on the illustration shown in FIG. 6, this position corresponds to the passage openings DO1, DO2 and DO3.
• this position of the discharge pipes AR1, AR2 and AR3 with respect to the apparent from Fig. 4 and 6 through holes DO1, DO2, DO3, DO4, DO5, DO6 and DO7 are in the explained in connection with FIG. 6 setting positions P2 to P6 of the supply pipe ZR indicated in FIG. 2 can be dispensed to the abovementioned exhaust pipes AR1, AR2 and AR3; in the setting position P1, no such rinsing liquor delivery takes place.
• Fig. 8 illustrates in a non-scale sectional view of a realized construction of the water distributor WW shown in Fig. 2 with the existing of the upper part OT and the lower part UT receptacle for the turntable DR.
• the hub DR is with its through-hole DO1 and its associated inlet region EB1 between the feed tube ZR and the discharge pipe AR1 aligned.
• the further through opening DO5 only its associated inlet region EB5 is shown in FIG. 8, which, however, has no connection to a further discharge tube.
• the discharge pipe AR3 shown in Fig. 8, which leads to the illustrated in Fig. 1 overhead shower DB, has no connection to a through hole of the rotary disk DR in Fig. 8.
• This pressure reduction is so strong here that the pressure of the rinsing liquor discharged through a through-hole DU formed in the above-mentioned upper part OT to the discharge pipe AR1 or generally expressed the fluid pressure of the transition region between the exit side of the through-hole DO1 and the inlet area in the discharge pipe AR1 flowing fluid is lower than the pressure in the surrounding transition region surrounding the surrounding area. In the surrounding area of the relevant arrangement, however, there is normally atmospheric pressure of 1 bar.
• centering webs (in total three) are shown in FIG. 8, one of which is designated ZS.
• some locking elements RA are provided which serve together with the mentioned centering webs ZS for receiving a support body for the lower spray arm US of the dishwasher GS shown schematically in Fig. 1.
• the present invention is not limited to the use of water as a fluid to the transition region between a rotatable fluid distributor body, which is supplied to a fluid to be discharged from one or more fluid discharge lines fluid from a fluid supply line, and inlet areas of the To seal the relevant fluid discharge lines. Rather, the present invention can be used to adequately seal transition areas in devices employing fluids other than water, such as oil or gases.

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• Engineering & Computer Science (AREA)
• Water Supply & Treatment (AREA)
• Textile Engineering (AREA)
• Washing And Drying Of Tableware (AREA)
• Detail Structures Of Washing Machines And Dryers (AREA)
• Multiple-Way Valves (AREA)
• Domestic Plumbing Installations (AREA)
• Sliding-Contact Bearings (AREA)

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• 2007
  • 2007-11-27 DE DE102007056922A patent/DE102007056922A1/de not_active Withdrawn
• 2008
  • 2008-10-28 ES ES08855595T patent/ES2375805T3/es active Active
  • 2008-10-28 AT AT08855595T patent/ATE536797T1/de active
  • 2008-10-28 EP EP08855595A patent/EP2217128B1/fr active Active
  • 2008-10-28 CN CN2008801179365A patent/CN101877987B/zh active Active
  • 2008-10-28 US US12/743,242 patent/US8978674B2/en active Active
  • 2008-10-28 EP EP11183962A patent/EP2404539B1/fr active Active
  • 2008-10-28 PL PL11183962T patent/PL2404539T3/pl unknown
  • 2008-10-28 WO PCT/EP2008/064589 patent/WO2009068394A1/fr active Application Filing
  • 2008-10-28 PL PL08855595T patent/PL2217128T3/pl unknown
  • 2008-10-28 ES ES11183962T patent/ES2402606T3/es active Active

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