WO2019086256A1 - Bras gicleur - Google Patents

Bras gicleur Download PDF

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Publication number
WO2019086256A1
WO2019086256A1 PCT/EP2018/078521 EP2018078521W WO2019086256A1 WO 2019086256 A1 WO2019086256 A1 WO 2019086256A1 EP 2018078521 W EP2018078521 W EP 2018078521W WO 2019086256 A1 WO2019086256 A1 WO 2019086256A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
rinsing
spray arm
washing
inlet
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.)
Ceased
Application number
PCT/EP2018/078521
Other languages
English (en)
Inventor
Yusuf Koc
Mert PATKAVAK
Erkan BASTAN
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Publication of WO2019086256A1 publication Critical patent/WO2019086256A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • A47L15/4214—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
    • 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
    • A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/22—Rotary spraying devices
    • A47L15/23—Rotary spraying devices moved by means of the sprays
    • 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
    • A47L15/4278—Nozzles
    • A47L15/4282—Arrangements to change or modify spray pattern or direction
    • 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
    • A47L2401/14—Water pressure or flow rate
    • 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
    • A47L2501/20—Spray nozzles or spray arms

Definitions

  • the present invention relates to a spray arm used particularly in dishwashers.
  • a washing cycle generally comprises the steps of cold washing, main washing, rinsing and drying.
  • the washing group one of the main parts of a dishwasher, is the section where washing is performed, comprising lower and upper basket components in which the items to be washed are placed, a cutlery basket, spray arms and filters.
  • the upper spray arm joined to the basket and the lower spray arm joined to the lower region of the tub, enable transmitting water into the dishwasher by means of the orifices provided thereon.
  • the position and the geometry of these orifices are designed so as to enable the water jet to scan a larger area inside the washing unit and to thereby reach all surfaces of the dishes.
  • the spray arm rotates as a result of the angular momentum generated by the water jet ejecting through the orifices provided thereon.
  • the orifices generating said momentum are positioned towards the end portions of a spray arm.
  • the jet ejecting through the orifices are involved in removing dirt from surfaces by flushing the dirty dishes.
  • a dishwasher upon activation of a circulation pump, water with detergent is transmitted to the pipes and therefrom to a spray arm. Water advances to both ends of the spray arm and reaches the dishes by passing through the orifices. The water jet ejecting during the washing step through the orifices forcibly impacts the dishes. Dirt is removed from the surfaces of the dishes as a consequence of said impact.
  • rinsing step water is sprayed to the washing unit through the nozzles on the same spray arm, having the same cross-sectional area. In this case, the same jet effect occurs in rinsing step as well. Aim of rinsing is to enhance the washing performance by removing the detergent and dirt residue from the surfaces of the dishes.
  • rinsing step In rinsing step, a jet effect as powerful as in the washing step is not required. However, since the same spray arm is used in the rinsing step, water is sprayed on the surfaces of the dishes in a velocity similar to that in the washing step. Consequently, the rinsing performance may remain low or energy consumption may increase.
  • KR20100128545 intends to improve rinsing performance by spraying rinsing water to blind spots.
  • the solution is sent to the washing unit by means of two separate spray arms in washing and rinsing steps.
  • the rinsing performance is enhanced by nozzle apparatuses mounted on a single spray arm by means of bolts.
  • JP2010035774 mentions a dishwasher having separate spray arms for washing and rinsing.
  • the rinsing spray arm is disposed at a location closer to the dishes and is provided with one or two nozzles. Washing and rinsing is performed by means of two separate spraying systems. Water guidance to these spray arms is controlled by a valve.
  • None of the state of the art documents include a solution in which a spray arm has different washing characteristic in different washing steps as in the present invention.
  • the aim of the present invention is to realize a spray arm enabling differing water ejection characteristics required in different washing steps.
  • Another aim of the present invention is to realize a spray arm enabling reducing the noise levels.
  • Another aim of the present invention is to realize a spray arm enabling reducing power consumption.
  • Another aim of the present invention is to realize a spray arm enabling reducing water consumption.
  • Figure 1 is a sectional view of the spray arm.
  • Figure 2 is a view of the rinsing regulator.
  • the spray arm (1) used particularly in dishwashers comprises
  • the spray arm (1) comprises at least one spray arm body (2) with a preferably elongated structure like an airplane propeller, capable of rotating about an axis passing almost through its center.
  • the spray arm body (2) preferably comprises two spray arm blades but it is also possible for the spray arm body (2) to have more than two spray arm blades.
  • a spray arm blade can also be produced as a single piece.
  • the spray arm body (2) has a structure capable of rotating with ease about an axis preferably passing through its center of gravity.
  • the rotation of spray arm blades is similar to the rotation of the spray arms of the state of the art dishwashers. Water is introduced to the spray arm body (2) by means of the water inlet (3) preferably provided on said rotational axis.
  • Said water inlet (3) is also similar to those of the spray arms of the state of the art dishwashers.
  • At least one jet nozzle (4) is provided on the spray arm body (2), enabling forcibly spraying the water received through the water inlet (3) on the dishes and thereby cleaning the dirt on the dishes.
  • the jet nozzle (4) has a small cross-sectional area in order to be able to pressurize water, because decreasing the cross-sectional area of the jet nozzle (4), increases the pressure of the water ejecting therefrom.
  • At least one rotation nozzle (5) is also provided on the spray arm body (2), enabling the water received through the water inlet to be sprayed so as to create an angular momentum capable of rotating the spray arm body (2).
  • Said rotation nozzle (5) is preferably placed towards an end of the spray arm blade in order to create a higher angular momentum.
  • the rotation nozzle (5) is placed angularly so as to be able to rotate the spray arm blades by creating an angular momentum on the blades by means of water.
  • Water is transmitted from the water inlet (3) to the jet nozzle (4) and the rotation nozzle (5) by means of a washing line. Water enters into said washing line through the washing line inlet (7)
  • At least one washing regulator (9) is provided on the washing line inlet (7), allowing or blocking introduction of water into the washing line. Said washing regulator (9) allows water to pass if the water pressure is higher than a given value, thereby enabling water to enter into the washing line.
  • the washing regulator (9) does not allow water to pass if the water pressure is lower than a given value, and thus water cannot enter into the washing line.
  • a rinsing nozzle (6) is provided on the spray arm body (2), enabling the water received through the water inlet (3) to be sprayed on the dishes in the rinsing step. Water is transmitted from the water inlet (3) to the rinsing nozzle (6) by means of a rinsing line. Water enters into said rinsing line through the rinsing line inlet (8). At least one rinsing regulator (10) is provided on said rinsing line inlet (8), allowing or blocking introduction of water to the rinsing line.
  • Said rinsing regulator (10) does not allow water to pass if the water pressure is higher than a given value, and thus water cannot enter into the rinsing line.
  • the rinsing regulator (10) allows water to pass if the water pressure is lower than a given value, thereby enabling water to enter into the rinsing line.
  • the washing regulator (9) enables water transmission to the jet nozzle (4) and the rotation nozzle (5) by allowing water to pass.
  • the rinsing regulator (10) does not allow water to pass, thereby there is no water transmission to the rinsing nozzle (6).
  • Water pressure is reduced in rinsing step.
  • the washing regulator (9) halts water transmission to the jet nozzle (4) and the rotation nozzle (5) by not allowing water to pass.
  • the rinsing regulator (10) allows water to pass and water is thereby transmitted to the rinsing nozzle (6).
  • the washing regulator (9) is shaped as a duck-bill. Said duck-bill opens and allows water to pass if the water pressure is sufficiently high. The duck-bill closes and blocks water passage if the water pressure is not sufficiently high.
  • the washing regulator (9) is preferably made of an elastomeric material. Water passage is thus controlled without using an additional element.
  • the rinsing regulator (10) comprises at least one plug (101) of a nature capable of blocking the rinsing line inlet (8), and at least one spring (102) connected to said plug (101).
  • the plug (101) keeps the rinsing line inlet (8) open when the spring (102) is in free state.
  • the spring (102) extends proportionally to the water pressure, and deflects from its free position.
  • the water pressure in main washing steps causes the spring (102) to extend so as to allow the plug (101) to block the rinsing line inlet (8).
  • the spring (102) returns to its free position and pulls the plug (101) backwards, enabling the rinsing line inlet (8) to be opened.
  • the numbers of the jet nozzles (4), rotation nozzles (5) and the rinsing nozzles (6) provided on the spray arm (1) of the invention are independent of each other. In other terms, the numbers of the jet nozzles (4), rotation nozzles (5) and the rinsing nozzles (6) may be equal to or different from each other. In addition, the water ejection directions of said nozzles (4, 5, 6) may also differ from each other. The rotational direction of the spray arm body (2) may thus be different in main washing and rinsing steps.
  • the outlet sectional area of the rinsing nozzles (6) are smaller than the outlet sectional area of the jet nozzles (4).
  • embodiments are also available in which the outlet sectional areas of said nozzles (4, 6) are identical, or in which the outlet sectional area of the rinsing nozzles (6) are larger than the outlet sectional area of the jet nozzles (4).
  • the spray arm (1) of the invention disables operation of the jet nozzles (4) and the rotation nozzles (5) in rinsing step, inhibiting water ejection through said nozzles (4, 5). Water is ejected only through the rinsing nozzles (6) in rinsing step, enabling consuming only a required amount of water, thereby saving water. In addition, since water is not ejected through the jet nozzles (4) and the rotation nozzles (5) during rinsing, the noise generated by the impact of pressurized water on the washing chamber walls, is avoided, thereby reducing noise levels.
  • the water pressure required by the spray arm (1) of the invention is provided by means of a water pump. Since a water pressure required in rinsing step is lower than that of the main washing step, the pump can be operated with a lower output, thereby enabling reducing the power consumed by the pump. Energy can thus be saved.
  • the spray arm (1) of the invention enables obtaining required water ejection characteristics (pressure, flow rate, and the like) thanks to using separate nozzles in separate washing steps.

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)

Abstract

La présente invention concerne un bras gicleur (1) utilisé en particulier dans des lave-vaisselle, permettant d'obtenir de l'eau présentant différentes caractéristiques d'éjection requises dans des étapes de lavage séparées, et permettant de réduire les niveaux de bruit, la consommation d'énergie et la consommation d'eau. Le bras gicleur (1) selon l'invention permet d'utiliser des buses d'éjection séparées dans des étapes de lavage séparées.
PCT/EP2018/078521 2017-10-31 2018-10-18 Bras gicleur Ceased WO2019086256A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TRA2017/16895 2017-10-31
TR2017/16895A TR201716895A2 (tr) 2017-10-31 2017-10-31 Bi̇r yikama pervanesi̇

Publications (1)

Publication Number Publication Date
WO2019086256A1 true WO2019086256A1 (fr) 2019-05-09

Family

ID=63896198

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/078521 Ceased WO2019086256A1 (fr) 2017-10-31 2018-10-18 Bras gicleur

Country Status (2)

Country Link
TR (1) TR201716895A2 (fr)
WO (1) WO2019086256A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7024995U (de) * 1970-07-03 1971-03-11 Robert Bosch Gmbh Geschirrspülmaschine
JPS6417662U (fr) * 1987-07-24 1989-01-27
EP0795292A2 (fr) * 1996-02-09 1997-09-17 CANDY S.p.A. Lave vaisselle comportant un bras tournant d'arrosage avec des buses de pulvérisation et procédé
JP2010035774A (ja) 2008-08-04 2010-02-18 Yokogawa Denshikiki Co Ltd 洗浄機
KR20100128545A (ko) 2009-05-28 2010-12-08 린나이코리아 주식회사 식기세척기의 노즐 캡
US20110220149A1 (en) * 2006-06-27 2011-09-15 Ramasamy Thiyagarajan Spray device for an appliance and method of operation
WO2011132356A1 (fr) * 2010-04-22 2011-10-27 パナソニック株式会社 Lave-vaisselle
US20120279536A1 (en) * 2011-05-04 2012-11-08 Whirlpool Corporation Dishwasher spray arm with diverting valve
EP2601877A2 (fr) * 2011-12-06 2013-06-12 Miele & Cie. KG Lave-vaisselle avec inversion automatique du sens de rotation du bras pulvérisateur
WO2015009916A1 (fr) * 2013-07-19 2015-01-22 Premark Feg L.L.C. Dispositif combiné de lavage et de rinçage et lave-vaisselle pourvu de celui-ci

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7024995U (de) * 1970-07-03 1971-03-11 Robert Bosch Gmbh Geschirrspülmaschine
JPS6417662U (fr) * 1987-07-24 1989-01-27
EP0795292A2 (fr) * 1996-02-09 1997-09-17 CANDY S.p.A. Lave vaisselle comportant un bras tournant d'arrosage avec des buses de pulvérisation et procédé
US20110220149A1 (en) * 2006-06-27 2011-09-15 Ramasamy Thiyagarajan Spray device for an appliance and method of operation
JP2010035774A (ja) 2008-08-04 2010-02-18 Yokogawa Denshikiki Co Ltd 洗浄機
KR20100128545A (ko) 2009-05-28 2010-12-08 린나이코리아 주식회사 식기세척기의 노즐 캡
WO2011132356A1 (fr) * 2010-04-22 2011-10-27 パナソニック株式会社 Lave-vaisselle
US20120279536A1 (en) * 2011-05-04 2012-11-08 Whirlpool Corporation Dishwasher spray arm with diverting valve
EP2601877A2 (fr) * 2011-12-06 2013-06-12 Miele & Cie. KG Lave-vaisselle avec inversion automatique du sens de rotation du bras pulvérisateur
WO2015009916A1 (fr) * 2013-07-19 2015-01-22 Premark Feg L.L.C. Dispositif combiné de lavage et de rinçage et lave-vaisselle pourvu de celui-ci

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Publication number Publication date
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