EP1526799B1 - Dispositif d'arrosage et procédé correspondant, en particulier pour des lave-vaisselles - Google Patents

Dispositif d'arrosage et procédé correspondant, en particulier pour des lave-vaisselles Download PDF

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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
Authority
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.)
Expired - Lifetime
Application number
EP03761521A
Other languages
German (de)
English (en)
Other versions
EP1526799A2 (fr
Inventor
Hans-Peter Nannt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1526799A2 publication Critical patent/EP1526799A2/fr
Application granted granted Critical
Publication of EP1526799B1 publication Critical patent/EP1526799B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4289—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)

Claims (14)

  1. Lave-vaisselle comprenant un dispositif de pulvérisation constitué d'au moins une conduite (1) tubulaire présentant deux extrémités (5, 6) avec des ouvertures de pulvérisation (2) pour la pulvérisation d'un liquide (3), caractérisé en ce que les deux extrémités de la conduite (1) tubulaire sont reliées à des moyens qui sont conçus de telle sorte que le liquide entre sous une pression prédéfinie au choix par la première et/ou la seconde extrémité (5, 6) dans la conduite (1) tubulaire et sort par les ouvertures de pulvérisation (2).
  2. Lave-vaisselle selon la revendication 1, caractérisé en ce que les moyens sont deux pompes qui sont reliées aux extrémités (5, 6) de la conduite (1) tubulaire.
  3. Lave-vaisselle selon la revendication 1, caractérisé en ce que les moyens sont une pompe et une unité de commande.
  4. Lave-vaisselle selon la revendication 3, caractérisé en ce que l'unité de commande répartit au moyen d'un élément de rotation les fractions de liquide respectives entre les deux extrémités (5, 6) de la conduite (1) tubulaire.
  5. Lave-vaisselle selon la revendication 4, caractérisé en ce que l'élément de rotation est conçu sous forme de répartiteur rotatif (4) et le comportement à la pulvérisation du liquide peut être influencé par la vitesse de rotation.
  6. Lave-vaisselle selon la revendication 2, caractérisé en ce que les deux pompes sont actionnées par une unité de commande de programme.
  7. Lave-vaisselle selon la revendication 6, caractérisé en ce que des déroulements de programme spécifiques, qui génèrent un modèle de pulvérisation défini, sont déposés dans l'unité de commande de programme.
  8. Lave-vaisselle selon l'une quelconque des revendications précédentes, caractérisé en ce que les ouvertures de pulvérisation (2) sont conçues sous forme d'au moins une ouverture de gicleur ou sous la forme d'au moins une fente longitudinale.
  9. Lave-vaisselle selon l'une quelconque des revendications 1 à 8, caractérisé en ce que des dispositifs de pulvérisation sont disposés au-dessous d'au moins un panier à vaisselle.
  10. Lave-vaisselle selon l'une quelconque des revendications 1 à 8, caractérisé en ce que des dispositifs de pulvérisation sont disposés dans au moins un panier à vaisselle.
  11. Lave-vaisselle selon l'une quelconque des revendications 1 à 8, caractérisé en ce que des dispositifs de pulvérisation sont disposés sur un fond d'un récipient de lavage du lave-vaisselle.
  12. Lave-vaisselle selon l'une quelconque des revendications 1 à 8, caractérisé en ce que des dispositifs de pulvérisation sont intégrés dans le fond du récipient de lavage du lave-vaisselle.
  13. Lave-vaisselle selon l'une quelconque des revendications 1 à 8, caractérisé en ce que des dispositifs de pulvérisation sont disposés de façon intégrée au-dessous d'au moins un panier à vaisselle ou dans au moins un panier à vaisselle et/ou sur un fond d'un récipient de lavage du lave-vaisselle ou dans le fond.
  14. Procédé pour le fonctionnement d'un lave-vaisselle selon l'une quelconque des revendications précédentes, comprenant les étapes suivantes :
    - sélection d'un programme de lavage déposé dans une mémoire de programme ;
    - mise en place des profils de pression respectifs, correspondant au programme de lavage, sur les extrémités de la conduite tubulaire
    - réglage des profils de pression respectifs et des quantités de liquide correspondantes.
EP03761521A 2002-06-26 2003-06-26 Dispositif d'arrosage et procédé correspondant, en particulier pour des lave-vaisselles Expired - Lifetime EP1526799B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10228641 2002-06-26
DE10228641A DE10228641B4 (de) 2002-06-26 2002-06-26 Geschirrspülmaschine mit einer Sprühvorrichtung und Verfahren
PCT/EP2003/006767 WO2004002286A2 (fr) 2002-06-26 2003-06-26 Dispositif et procede de pulverisation, conçu en particulier pour des lave-vaisselle

Publications (2)

Publication Number Publication Date
EP1526799A2 EP1526799A2 (fr) 2005-05-04
EP1526799B1 true EP1526799B1 (fr) 2008-04-02

Family

ID=29795892

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03761521A Expired - Lifetime EP1526799B1 (fr) 2002-06-26 2003-06-26 Dispositif d'arrosage et procédé correspondant, en particulier pour des lave-vaisselles

Country Status (6)

Country Link
EP (1) EP1526799B1 (fr)
AT (1) ATE390883T1 (fr)
AU (1) AU2003242769A1 (fr)
DE (2) DE10228641B4 (fr)
ES (1) ES2303906T3 (fr)
WO (1) WO2004002286A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10351785A1 (de) * 2003-11-06 2005-06-09 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung zur Ansteuerung von Sprühkanälen in Geschirrspülmaschinen
CN109589073B (zh) * 2017-09-30 2024-01-16 宁波方太厨具有限公司 一种用于清洗机的喷淋机构以及应用有该喷淋机构的清洗机
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2654894A (en) * 1952-03-14 1953-10-13 Foot bath
DE1177564B (de) * 1959-04-15 1964-09-03 Siemens Ag Vorrichtung zum Einstellen der Strahlhoehe fuer Springbrunnen
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 (de) * 1964-07-23 1969-04-30 Heinicke Instr Of Europ Gmbh Vorrichtung zur Spruehreinigung
FR1492249A (fr) * 1966-07-06 1967-08-18 Perfectionnement aux machines à laver la vaisselle
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 (ru) * 1989-10-30 1995-04-20 Кащи Петр Зиновьевич Контрастный душ
JPH07232115A (ja) * 1994-02-22 1995-09-05 Fujikawa Kikai Kk 噴水システム
JPH0889468A (ja) * 1994-09-22 1996-04-09 Mitsubishi Electric Home Appliance Co Ltd 食器洗浄機
DE19543960C2 (de) * 1995-11-25 2000-04-06 Driam Metallprodukt Gmbh & Co Sprüharm für eine Beschichtungsvorrichtung
JPH1033451A (ja) * 1996-07-25 1998-02-10 Nakanishi Seisakusho:Kk 食器類の洗浄処理方法及び食器収納コンテナ
DE29809680U1 (de) * 1998-05-29 1998-08-20 Brüchert, Nils, 64297 Darmstadt Geschlitztes Rohr zur Erzeugung eines fächerförmigen Wasserstrahls mit der Möglichkeit der Positionsänderung durch Regulierung des Wasserdrucks
DE19847151C2 (de) * 1998-10-13 2003-02-06 Aeg Hausgeraete Gmbh Geschirrkorb für eine Geschirrspülmaschine

Also Published As

Publication number Publication date
WO2004002286A3 (fr) 2004-05-27
AU2003242769A1 (en) 2004-01-19
WO2004002286A2 (fr) 2004-01-08
AU2003242769A8 (en) 2004-01-19
ES2303906T3 (es) 2008-09-01
ATE390883T1 (de) 2008-04-15
DE10228641B4 (de) 2008-06-19
EP1526799A2 (fr) 2005-05-04
DE50309542D1 (de) 2008-05-15
DE10228641A1 (de) 2004-01-29

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