EP1526799B1 - Spray device and corresponding method, in particular for dishwashers - Google Patents
Spray device and corresponding method, in particular for dishwashers Download PDFInfo
- Publication number
- EP1526799B1 EP1526799B1 EP03761521A EP03761521A EP1526799B1 EP 1526799 B1 EP1526799 B1 EP 1526799B1 EP 03761521 A EP03761521 A EP 03761521A EP 03761521 A EP03761521 A EP 03761521A EP 1526799 B1 EP1526799 B1 EP 1526799B1
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- EP
- European Patent Office
- Prior art keywords
- spray
- dishwashing machine
- machine according
- liquid
- program
- 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.)
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- 239000007921 spray Substances 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 238000005507 spraying Methods 0.000 claims abstract description 18
- 238000004851 dishwashing Methods 0.000 claims description 19
- 230000006399 behavior Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000005406 washing Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 6
- 239000013598 vector Substances 0.000 description 5
- 230000003068 static effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000005293 physical law Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- A47L15/4289—Spray-pressure 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
- A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
- A47L15/16—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with rigidly-mounted spraying devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
- B05B1/20—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor
Definitions
- the present invention is a dishwasher with a spray device and an associated method
- Known spraying devices e.g. for dishwashers, have rotary arms, is pumped through the spray liquid and the rotational movement is generated by the reaction force of the exiting liquid.
- These so-called spray arms are supplied with flushing fluid via a pump. Since, conventionally, the rinsing container has a rectangular outline, the corner regions of the rinsing container are insufficiently reached by the spray arms, which traverse a substantially circular path. This disadvantage is avoided for example by so-called spray floors, which have the disadvantage of being able to spray only point-like areas and thus the items to be cleaned can not be sufficiently wetted with the rinsing liquid at all points.
- FR 1 492 249 A discloses a dishwasher gem. the preamble of claim 1.
- the object of the present invention is therefore to provide a spraying apparatus and method which makes it possible to optimally utilize the scarcely dimensioned space resources in the washing container of a dishwasher and also to provide a spraying or spraying pattern which essentially permits items to be arranged in a dish rack completely wet.
- the spraying device consists of at least one tubular pipe having two ends with spray openings for spraying a liquid, wherein according to the invention the two ends of the pipe-like pipe are connected to means which are designed such that the liquid is under a predetermined pressure optionally through the first and / or second end in the tubular conduit and flows out through the spray openings.
- the means are designed as pumps, which are respectively connected to the ends of the tubular conduit.
- the pumps are connected to each other via a program control unit and are controlled accordingly in the program control unit stored program sequences.
- the means are formed as a pump and a control unit, said control unit divides the respective liquid portions to the two ends of the tubular conduit via a rotary member.
- the rotary element is designed as a rotary distributor, so that over the rotational speed of the rotary distributor, the spray behavior of the liquid can be influenced and thus controlled.
- the pressure p 2 builds up according to the equation of continuity and the correspondingly pressurized liquid portions endeavor to leave the pipe section 11 through spray openings.
- the outlet direction of the pressurized fluid fractions depends essentially on the force ratios of v 1 and v 2 in the respective fluid sections, wherein the exit angle can be determined according to vector equations.
- specific spray patterns can be created, for example, by means of corresponding program sequences which are stored in the program control unit.
- a FIG. 2 To produce trained spray pattern in which abut at both ends of the tubular conduit corresponding amounts of liquid at the same pressure values, so that cancel approximately in the middle of the tubular conduit, the velocity vectors of the liquid in the tube of the value and only a corresponding pressure value is applied, so that the water jet emerging from the tube-like conduit leaves the spray opening substantially at right angles.
- Different pressure progression programs are stored in the control unit in order to allow different spray profiles and spray patterns, for example zone rinses, in accordance with the choice of the rinse programs.
- a multiplicity of the tube-like lines with spray openings are provided in a dishwashing machine, so that a corresponding cross-sectional area in the washing compartment can be reliably charged with appropriate spraying jets.
- the spray device has the following advantages:
- the outlet angles and the location of the maximum volume flow of the individual spray jets emerging from the openings can be precisely controlled by means of the pressure and speed control of the liquid, so that individual areas (zone rinses) can be intensively exposed to rinsing liquid with a specific spray pattern.
- the device according to the invention requires no moving parts, such as rotatable nozzle heads, so that both the production and the assembly over conventional spray systems is less expensive or more efficient.
- FIG. 1 shows a schematic sectional view through a tubular conduit 1 of a spray device with the respective sections I, I *, II, III * and III, wherein spray holes 2 are provided only in section II.
- the sections I and III serve only to transport the liquid 3, the thickness of the arrows representing the respective static pressure state and the length of the arrows representing the velocity vector.
- the liquid has a relatively high pressure, so that according to the Bernoulli equation, the velocity of the liquid 3 is relatively low.
- the transition region I * which corresponds to a throttle causes a tapering of the cross-sectional area, so that in the region II is a relatively high speed, but the fluid pressure is low. This state ensures that no liquid emerges from the spray openings 2.
- the speed is again reduced according to the Bernoulli equation and a higher pressure builds up in the liquid 3.
- this speed reduction can be effected in each region of the section II of the tube 1, wherein the location of the speed reduction can be controlled by appropriate means, such as pumps.
- FIG. 3 a schematic representation of the spraying device is shown, wherein wash items 7 are shown schematically, which is wetted by liquid jets (represented by arrows).
- the respective spray direction or spray patterns can be controlled, for example, by a rotary distributor 4, wherein the rotational speed of the rotary element significantly influences the spray pattern.
- the spray openings 2 of the spray device are formed in the illustrated embodiments as nozzle openings, but may alternatively be formed as at least one longitudinal slot.
- the exit angle and the location of the maximum outflows of the individual spray streams are precisely controllable via the pressure and speed control of the liquid, so that individual areas (zone rinsing) can be intensively charged with rinsing liquid with a specific spray pattern ,
- the sprayer does not require any moving parts, such as rotatable die heads, so that both fabrication and assembly are more cost effective and efficient over conventional spray systems.
- An unspecified dishwasher has at least one of the spraying devices explained above. These spraying devices can alternatively be arranged below at least one dish rack but also in at least one dish rack or at the bottom of a dishwashing container of the dishwasher or in the bottom. Of course, combinations of these arrangement options are possible.
Landscapes
- Washing And Drying Of Tableware (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Detergent Compositions (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
Description
Gegenstand der vorliegenden Erfindung ist eine Geschirrspülmaschine mit einer Sprühvorrichtung und ein dazugehöriges VerfahrenThe present invention is a dishwasher with a spray device and an associated method
Bekannte Sprühvorrichtungen, z.B. für Geschirrspülmaschinen, weisen Rotationsarme auf, durch die Sprühflüssigkeit gepumpt wird und die Rotationsbewegung durch die Rückschlagskraft der austretenden Flüssigkeit erzeugt wird. Diese sogenannten Sprüharme werden über eine Pumpe mit Spülflüssigkeit versorgt. Da herkömmlicherweise der Spülbehälter einen rechteckigen Grundriss aufweist, werden die Eckbereiche des Spülbehälters von den, eine im wesentlichen Kreisbahn beschreitenden, Sprüharmen nur ungenügend erreicht. Dieser Nachteil wird beispielsweise durch sogenannte Sprühböden vermieden, wobei diese den Nachteil aufweisen, lediglich punktartige Bereiche besprühen zu können und somit das zu reinigende Spülgut nicht an allen Stellen ausreichend mit der Spülflüssigkeit benetzt werden kann.Known spraying devices, e.g. for dishwashers, have rotary arms, is pumped through the spray liquid and the rotational movement is generated by the reaction force of the exiting liquid. These so-called spray arms are supplied with flushing fluid via a pump. Since, conventionally, the rinsing container has a rectangular outline, the corner regions of the rinsing container are insufficiently reached by the spray arms, which traverse a substantially circular path. This disadvantage is avoided for example by so-called spray floors, which have the disadvantage of being able to spray only point-like areas and thus the items to be cleaned can not be sufficiently wetted with the rinsing liquid at all points.
Aufgabe der vorliegenden Erfindung ist es daher, eine Sprühvorrichtung und -verfahren bereitzustellen, welche es erlauben, die knapp bemessenen Raumressourcen im Spülbehälter einer Geschirrspülmaschine optimal zu nutzen und ebenfalls ein Sprühverhalten bzw. Sprühmuster bereitzustellen, welche es erlauben, in einem Geschirrkorb eingeordnetes Spülgut im wesentlichen vollständig zu benetzen.The object of the present invention is therefore to provide a spraying apparatus and method which makes it possible to optimally utilize the scarcely dimensioned space resources in the washing container of a dishwasher and also to provide a spraying or spraying pattern which essentially permits items to be arranged in a dish rack completely wet.
Diese Aufgabe wird durch die erfindungsgemäße Geschirrspülmaschine mit einer Sprühvorrichtung mit den Merkmalen gemäß Anspruch 1, sowie durch das erfindungsgemäße Verfahren gemäß Anspruch 14, gelöst Vorteilhafte Weiterbildungen der vorliegenden Erfindung sind in den Unteransprüchen gekennzeichnet.This object is achieved by the dishwasher according to the invention having a spraying device with the features according to claim 1, as well as by the method according to the invention according to claim 14. Advantageous developments of the present invention are characterized in the subclaims.
Die Sprühvorrichtung besteht aus wenigstens einer zwei Enden aufweisenden rohrartigen Leitung mit Sprühöffnungen zum Versprühen einer Flüssigkeit, wobei erfindungsgemäß die beiden Enden der rohrartigen Leitung mit Mitteln verbunden sind, die so ausgebildet sind, dass die Flüssigkeit unter einem vorbestimmten Druck wahlweise durch das erste und/oder zweite Ende in die rohrartige Leitung ein- und durch die Sprühöffnungen ausströmt.The spraying device consists of at least one tubular pipe having two ends with spray openings for spraying a liquid, wherein according to the invention the two ends of the pipe-like pipe are connected to means which are designed such that the liquid is under a predetermined pressure optionally through the first and / or second end in the tubular conduit and flows out through the spray openings.
Vorteilhafterweise sind die Mittel als Pumpen ausgebildet, die mit den Enden der rohrartigen Leitung jeweils verbunden sind. Zweckmäßigerweise sind die Pumpen über eine Programmsteuereinheit miteinander verbunden und werden entsprechend in der Programmsteuereinheit hinterlegter Programmabläufe angesteuert.Advantageously, the means are designed as pumps, which are respectively connected to the ends of the tubular conduit. Appropriately, the pumps are connected to each other via a program control unit and are controlled accordingly in the program control unit stored program sequences.
Bei einer anderen bevorzugten Ausführungsform der erfindungsgemäßen Sprühvorrichtung sind die Mittel als eine Pumpe und eine Steuerungseinheit ausgebildet, wobei diese Steuereinheit über ein Rotationselement die jeweiligen Flüssigkeitsanteile zu den beiden Enden der rohrartigen Leitung aufteilt.In another preferred embodiment of the spray device according to the invention, the means are formed as a pump and a control unit, said control unit divides the respective liquid portions to the two ends of the tubular conduit via a rotary member.
Zweckmäßigerweise ist das Rotationselement als Drehverteiler ausgebildet, so dass über die Rotationsgeschwindigkeit des Drehverteilers das Sprühverhalten der Flüssigkeit beeinflussbar und somit steuerbar ist.Conveniently, the rotary element is designed as a rotary distributor, so that over the rotational speed of the rotary distributor, the spray behavior of the liquid can be influenced and thus controlled.
Die Sprühvorrichtung macht sich das physikalische Gesetz zu nutze, dass gemäß der Kontinuitätsgleichung:
und der daraus folgenden, vereinfachten Bernoulli-Gleichung:
der Druck und die Geschwindigkeit einer Flüssigkeit in einem Leitungssystem voneinander abhängen, so dass bei Veränderung des einen Parameter, der andere Parameter ebenfalls eine Änderung erfährt.The spraying device makes use of the physical law that according to the equation of continuity:
and the following simplified Bernoulli equation:
the pressure and the speed of a liquid in a piping system depend on each other, so that when changing the one parameter, the other parameter also undergoes a change.
Übertragen auf die erfindungsgemäße Sprühvorrichtung bedeutet dies, dass der in den Zuleitungen der Enden vorliegende totale Druck (statischer Druck plus dynamischer Druck (Fluidgeschwindigkeit)), welcher durch entsprechende Pumpleistung aufgebaut wird, sich in der Leitung mit Querschnittsfläche A1 zu geringem dynamischen Druck und hohem statischem Druck und in der rohrartigen Leitung m it den entsprechenden Sprühöffnungen und der wesentlich geringeren Querschnittsfläche A2 zu relativ geringem statischen Druck aber hohen Fluidgeschwindigkeiten (dynamischer Druck) aufteilt.When applied to the spray device according to the invention, this means that the total pressure present in the supply lines of the ends (static pressure plus dynamic pressure (fluid velocity)), which is built up by corresponding pumping power, becomes in the line with cross-sectional area A 1 to low dynamic pressure and high static pressure and in the tubular conduit m with the corresponding spray holes and the much smaller cross-sectional area A 2 to relatively low static pressure but high fluid velocities (dynamic pressure) divides.
Dieses Verhältnis wird gemäß
Wird nun die Geschwindigkeit v2 im Rohrabschnitt II reduziert, baut sich der Druck p2 entsprechend der Kontinuitätsgleichung auf und die entsprechend mit Druck beaufschlagte Flüssigkeitsanteile sind bestrebt, den Rohrabschnitt 11 durch Sprühöffnungen zu verlassen. Die Austrittsrichtung der druckbeaufschlagten Flüssigkeitsanteile richtet sich im wesentlichen nach den Kräfteverhältnissen von v1 und v2 in den jeweiligen Flüssigkeitsabschnitten, wobei gemäß Vektorgleichungen der Austrittswinkel bestimmbar ist.If now the velocity v 2 in the pipe section II is reduced, the pressure p 2 builds up according to the equation of continuity and the correspondingly pressurized liquid portions endeavor to leave the
Mit der Sprühvorrichtung kann beispielsweise durch entsprechende Programmabläufe, die in der Programmsteuereinheit hinterlegt sind, spezifische Sprühmuster erstellt werden. Beispielsweise ist es möglich, ein gemäß
Die Sprühwinkel der zu den jeweiligen Enden der rohrartigen Leitung austretenden Sprühstrahlen wird gemessen an der Fließrichtung stets geringer, da die jeweiligen Vektorkomponenten der Flüssigkeitsgeschwindigkeit zunehmend geringeren Einfluss nehmen. Ein solches Sprühmuster ist
In der Steuereinheit sind unterschiedliche Druckverlaufsprogramme hinterlegt, um entsprechend der Wahl der Spülprogramme unterschiedliche Sprühverläufe und Sprühmuster, beispielsweise Zonenspülen ermöglichen.Different pressure progression programs are stored in the control unit in order to allow different spray profiles and spray patterns, for example zone rinses, in accordance with the choice of the rinse programs.
Wird beispielsweise durch die Bereitstellung von zwei Pumpen, die beide über eine zentrale Steuereinheit angesteuert werden, ein bestimmter Druckverlauf auf die Flüssigkeit aufgebracht, ist es möglich, impulsartige Sprühstöße zu erzeugen, welche in der Lage sind, auch hartnäckige Anschmutzungen am Spülgut wirkungsvoll zu entfernen.If, for example, provided by the provision of two pumps, both of which are controlled by a central control unit, a certain pressure curve on the liquid, it is possible to produce pulse-like sprays, which are able to effectively remove even stubborn stains on items to be washed.
Erfindungsgemäß sind in einer Geschirrspülmaschine eine Vielzahl von den rohrartigen Leitungen mit Sprühöffnungen vorgesehen, so dass eine entsprechende Querschnittsfläche im Spülbehälter zuverlässig mit entsprechenden Sprühstrahlen beaufschlagt werden kann.According to the invention, a multiplicity of the tube-like lines with spray openings are provided in a dishwashing machine, so that a corresponding cross-sectional area in the washing compartment can be reliably charged with appropriate spraying jets.
Das erfindungsgemäße Verfahren zum Betreiben einer erfindungsgemäße Geschirrspülmaschine führt folgende Schritte aus:
- Auswählen eines in einem Programmspeicher hinterlegten Sprühprogramms;
- Aufbau der jeweiligen, dem Spülprogramm entsprechenden Druckprofile auf die Enden der rohrartigen Leitung
- Regelung der jeweiligen Druckprofile und der entsprechenden Flüssigkeitsmengen.
- Selecting a spray program stored in a program memory;
- Structure of the respective, the rinse program corresponding pressure profiles on the ends of the tubular conduit
- Control of the respective pressure profiles and the corresponding liquid quantities.
Die Sprühvorrichtung weist folgende Vorteile auf:
Die Austrittswinkel und der Ort des maximalen aus Öffnungen austretenden Volumenstromes der einzelnen Sprühstrahlen ist über die Druck und Geschwindigkeitsregelung der Flüssigkeit präzise steuerbar, so dass einzelne Bereiche (Zonenspülen) mit einem spezifischen Sprühmuster intensiv mit Spülflüssigkeit beaufschlagt werden kann. Die erfindungsgemäße Vorrichtung benötigt keine beweglichen Teile, wie beispielsweise drehbare Düsenköpfe, so dass sowohl die Fertigung als auch die Montage gegenüber herkömmlichen Sprühsystemen kostengünstiger bzw. effizienter ist.The spray device has the following advantages:
The outlet angles and the location of the maximum volume flow of the individual spray jets emerging from the openings can be precisely controlled by means of the pressure and speed control of the liquid, so that individual areas (zone rinses) can be intensively exposed to rinsing liquid with a specific spray pattern. The device according to the invention requires no moving parts, such as rotatable nozzle heads, so that both the production and the assembly over conventional spray systems is less expensive or more efficient.
Die Erfindung wird anhand der nachfolgenden Zeichnungen näher erläutert. Es zeigen:
- Figur 1
- eine schematische Darstellung der physikalischen Zusammenhänge der einzelnen Rohrabschnitte;
- Figur 2A,B
- eine schematische Darstellung einer Sprühvorrichtung in zwei unterschiedlichen Druckstadien;
Figur 3- eine bevorzugte Ausführungsform, wobei die Druckansteuerung mittels Drehverteiler vorgenommen wird.
- FIG. 1
- a schematic representation of the physical relationships of the individual pipe sections;
- FIG. 2A, B
- a schematic representation of a spraying device in two different pressure stages;
- FIG. 3
- a preferred embodiment, wherein the pressure control is performed by means of rotary distributor.
Im Abschnitt I weist die Flüssigkeit einen relativ hohen Druck auf, so dass gemäß d er Bernoulli-Gleichung die Geschwindigkeit der Flüssigkeit 3 relativ gering ist. Der Übergangsbereich I*, der einer Drossel entspricht, bewirkt eine Verjüngung der Querschnittsfläche, so dass im Bereich II eine relativ hohe Geschwindigkeit vorliegt, jedoch der Flüssigkeitsdruck gering ist. Durch diesen Zustand wird erreicht, dass keine Flüssigkeit aus den Sprühöffnungen 2 austritt. Nach Erreichen des Rohrabschnitts III über die Drossel III* wird die Geschwindigkeit gemäß der Bernoulli-Gleichung erneut reduziert und ein höherer Druck baut sich in der Flüssigkeit 3 auf.In section I, the liquid has a relatively high pressure, so that according to the Bernoulli equation, the velocity of the
Wird, wie in
Gemäß
In
Die Sprühöffnungen 2 der Sprühvorrichtung sind in den erläuterten Ausführungsbeispielen als Düsenöffnungen ausgebildet, können aber auch alternativ als wenigstens ein Längsschlitz ausgebildet sein.The spray openings 2 of the spray device are formed in the illustrated embodiments as nozzle openings, but may alternatively be formed as at least one longitudinal slot.
Bei der oben erläuterten Sprühvorrichtung in allen Ausführungsformen sind die Austrittswinkel und der Ort des maximalen aus Öffnungen austretenden Volumenstromes der einzelnen Sprühstrahlen über die Druck und Geschwindigkeitsregelung der Flüssigkeit präzise steuerbar, so dass einzelne Bereiche (Zonenspülen) mit einem spezifischen Sprühmuster intensiv mit Spülflüssigkeit beaufschlagt werden kann. Die Sprühvorrichtung benötigt keine beweglichen Teile, wie beispielsweise drehbare Düsenköpfe, so dass sowohl die Fertigung als auch die Montage gegenüber herkömmlichen Sprühsystemen kostengünstiger bzw. effizienter ist.In the above-explained spray device in all embodiments, the exit angle and the location of the maximum outflows of the individual spray streams are precisely controllable via the pressure and speed control of the liquid, so that individual areas (zone rinsing) can be intensively charged with rinsing liquid with a specific spray pattern , The sprayer does not require any moving parts, such as rotatable die heads, so that both fabrication and assembly are more cost effective and efficient over conventional spray systems.
Eine nicht näher beschriebene Geschirrspülmaschine weist wenigstens eine der oben erläuterten Sprühvorrichtungen auf. Diese Sprühvorrichtungen können unterhalb wenigstens eines Geschirrkorb alternativ aber auch in wenigstens einem Geschirrkorb oder an einem Boden eines Spülbehälters der Geschirrspülmaschine oder in dem Boden integriert angeordnet sein. Natürlich sind auch Kombinationen dieser Anordnungsmöglichkeiten möglich.An unspecified dishwasher has at least one of the spraying devices explained above. These spraying devices can alternatively be arranged below at least one dish rack but also in at least one dish rack or at the bottom of a dishwashing container of the dishwasher or in the bottom. Of course, combinations of these arrangement options are possible.
Die oben erläuterten Sprühvorrichtungen werden mit dem Verfahren zum Betreiben einer Sprühvorrichtung wie folgt betrieben:
- Auswählen eines in einem Programmspeicher hinterlegten Sprühprogramms;
- Aufbau der jeweiligen, dem Spülprogramm entsprechenden Druckprofile auf die Enden der rohrartigen Leitung und
- Regelung der jeweiligen Druckprofile und der entsprechenden Flüssigkeitsmengen.
- Selecting a spray program stored in a program memory;
- Structure of the respective, the rinse program corresponding pressure profiles on the ends of the tubular conduit and
- Control of the respective pressure profiles and the corresponding liquid quantities.
Das Verfahren zum Betreiben der Sprühvorrichtungen findet natürlich mit den geschilderten Vorteilen in der erfindungsgemäßen Geschirrspülmaschine Anwendung.Of course, the method for operating the spraying devices finds application with the described advantages in the dishwasher according to the invention.
Claims (14)
- Dishwashing machine with a spray device consisting of at least one tubular duct (1), which has two ends (5, 6), with spray openings (2) for spraying a liquid (3), characterised in that the two ends of the tubular duct (1) are connected with means which are so constructed that the liquid flows under a predetermined pressure selectively through the first and/or second end (5, 6) into the tubular duct (1) and out through the spray openings (2).
- Dishwashing machine according to claim 1, characterised in that the means are two pumps which are connected with the ends (5, 6) of the tubular duct (1).
- Dishwashing machine according to claim 1, characterised in that the means are a pump and a control unit.
- Dishwashing machine according to claim 3, characterised in that the control unit divides up the respective liquid portions to the two ends (5, 6) of the tubular duct (1) by way of a rotation element.
- Dishwashing machine according to claim 5, characterised in that the rotation element is constructed as a rotary distributor (4) and the spray behaviour of the liquid can be influenced by way of the rotational speed.
- Dishwashing machine according to claim 2, characterised in that the two pumps are controlled in drive by a program control unit.
- Dishwashing machine according to claim 6, characterised in that specific program sequences which produce a defined spray pattern are filed in the program control unit.
- Dishwashing machine according to one of the preceding claims, characterised in that the spray openings (2) are formed as at least one nozzle opening or as at least one longitudinal slot.
- Dishwashing machine according to one of claims 1 to 8, characterised in that the spray devices are arranged below at least one crockery basket.
- Dishwashing machine according to one of claims 1 to 8, characterised in that spray devices are arranged in at least one crockery basket.
- Dishwashing machine according to one of claims 1 to 8, characterised in that spray devices are arranged at a base of a rinsing container of the dishwashing machine.
- Dishwashing machine according to one of claims 1 to 8, characterised in that spray devices are integrated in the base of the rinsing container of the dishwashing machine.
- Dishwashing machine according to one of claims 1 to 8, characterised in that the spray devices are arranged below at least one crockery basket or in at least one crockery basket and/or at a base of a rinsing container of the dishwashing machine or integrated in the base.
- Method of operating a dishwashing machine according to one of the preceding claims, comprising the steps:- selecting a spray program filed in a program memory;- building up the respective pressure profiles, in correspondence with the rinsing program, at the ends of the tubular duct; and- regulating the respective pressure profiles and the corresponding liquid quantities.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10228641A DE10228641B4 (en) | 2002-06-26 | 2002-06-26 | Dishwasher with a spray device and method |
DE10228641 | 2002-06-26 | ||
PCT/EP2003/006767 WO2004002286A2 (en) | 2002-06-26 | 2003-06-26 | Spray device and method, in particular for dishwashers |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1526799A2 EP1526799A2 (en) | 2005-05-04 |
EP1526799B1 true EP1526799B1 (en) | 2008-04-02 |
Family
ID=29795892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03761521A Expired - Lifetime EP1526799B1 (en) | 2002-06-26 | 2003-06-26 | Spray device and corresponding method, in particular for dishwashers |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1526799B1 (en) |
AT (1) | ATE390883T1 (en) |
AU (1) | AU2003242769A1 (en) |
DE (2) | DE10228641B4 (en) |
ES (1) | ES2303906T3 (en) |
WO (1) | WO2004002286A2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10351785A1 (en) * | 2003-11-06 | 2005-06-09 | BSH Bosch und Siemens Hausgeräte GmbH | Device for controlling spray channels in dishwashers |
CN109589073B (en) * | 2017-09-30 | 2024-01-16 | 宁波方太厨具有限公司 | Spraying mechanism for cleaning machine and cleaning machine using same |
US11445884B2 (en) | 2020-11-30 | 2022-09-20 | Haier Us Appliance Solutions, Inc. | Dishwasher appliance main conduit with pressure relief hole |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2654894A (en) * | 1952-03-14 | 1953-10-13 | Foot bath | |
DE1177564B (en) * | 1959-04-15 | 1964-09-03 | Siemens Ag | Device for adjusting the jet height for fountains |
GB949954A (en) * | 1960-12-23 | 1964-02-19 | Apv Co Ltd | A new or improved method of or apparatus for producing a liquid spray |
DE1293984B (en) * | 1964-07-23 | 1969-04-30 | Heinicke Instr Of Europ Gmbh | Device for spray cleaning |
FR1492249A (en) * | 1966-07-06 | 1967-08-18 | Advanced training in dishwashing machines | |
DE3704910C1 (en) * | 1986-08-01 | 1987-10-15 | Dornier Gmbh Lindauer | Blowing device for blowing a treatment medium onto a material web moving in the longitudinal direction |
RU2033131C1 (en) * | 1989-10-30 | 1995-04-20 | Кащи Петр Зиновьевич | Transition douche |
JPH07232115A (en) * | 1994-02-22 | 1995-09-05 | Fujikawa Kikai Kk | Fountain system |
JPH0889468A (en) * | 1994-09-22 | 1996-04-09 | Mitsubishi Electric Home Appliance Co Ltd | Dish washer |
DE19543960C2 (en) * | 1995-11-25 | 2000-04-06 | Driam Metallprodukt Gmbh & Co | Spray arm for a coating device |
JPH1033451A (en) * | 1996-07-25 | 1998-02-10 | Nakanishi Seisakusho:Kk | Dishwasher/processing method and accommodation container |
DE29809680U1 (en) * | 1998-05-29 | 1998-08-20 | Brüchert, Nils, 64297 Darmstadt | Slotted tube to create a fan-shaped water jet with the possibility of changing the position by regulating the water pressure |
DE19847151C2 (en) * | 1998-10-13 | 2003-02-06 | Aeg Hausgeraete Gmbh | Dish rack for a dishwasher |
-
2002
- 2002-06-26 DE DE10228641A patent/DE10228641B4/en not_active Expired - Fee Related
-
2003
- 2003-06-26 DE DE50309542T patent/DE50309542D1/en not_active Expired - Lifetime
- 2003-06-26 AU AU2003242769A patent/AU2003242769A1/en not_active Abandoned
- 2003-06-26 ES ES03761521T patent/ES2303906T3/en not_active Expired - Lifetime
- 2003-06-26 AT AT03761521T patent/ATE390883T1/en not_active IP Right Cessation
- 2003-06-26 EP EP03761521A patent/EP1526799B1/en not_active Expired - Lifetime
- 2003-06-26 WO PCT/EP2003/006767 patent/WO2004002286A2/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ES2303906T3 (en) | 2008-09-01 |
ATE390883T1 (en) | 2008-04-15 |
AU2003242769A8 (en) | 2004-01-19 |
DE10228641A1 (en) | 2004-01-29 |
DE50309542D1 (en) | 2008-05-15 |
WO2004002286A3 (en) | 2004-05-27 |
DE10228641B4 (en) | 2008-06-19 |
EP1526799A2 (en) | 2005-05-04 |
WO2004002286A2 (en) | 2004-01-08 |
AU2003242769A1 (en) | 2004-01-19 |
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