WO2019086255A1 - Bras gicleur pour lave-vaisselle - Google Patents

Bras gicleur pour lave-vaisselle Download PDF

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Publication number
WO2019086255A1
WO2019086255A1 PCT/EP2018/078516 EP2018078516W WO2019086255A1 WO 2019086255 A1 WO2019086255 A1 WO 2019086255A1 EP 2018078516 W EP2018078516 W EP 2018078516W WO 2019086255 A1 WO2019086255 A1 WO 2019086255A1
Authority
WO
WIPO (PCT)
Prior art keywords
spray arm
water
rotation nozzle
arm body
nozzle
Prior art date
Application number
PCT/EP2018/078516
Other languages
English (en)
Inventor
Yusuf Koc
Mert PATKAVAK
Emine Birci
Original Assignee
Arcelik Anonim Sirketi
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 Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Priority to EP18789135.3A priority Critical patent/EP3703548A1/fr
Publication of WO2019086255A1 publication Critical patent/WO2019086255A1/fr

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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
    • A47L15/4278—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
    • 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
    • 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.
  • the spray arm rotates in a single direction, the water jet ejecting through the orifices cannot scan the entire area in the washing unit, failing to reach all surfaces of the dishes. Thus, dirt is not completely removed from the dishes, leading to a low washing performance.
  • EP2601878 mentions a spray arm capable of bi-directional rotation, in which the flow direction of water can be changed by means of a ball placed therein.
  • 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 rotatable in both clockwise and counter-clockwise directions.
  • Figure1 is a sectional view of the spray arm.
  • 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 at least one water inlet provided almost on its rotational axis.
  • Said water inlet is also similar to those of the spray arms of the state of the art dishwashers.
  • At least one washing nozzle (3) is provided on the spray arm body (2), enabling forcibly spraying the water received through the water inlet on the dishes and thereby cleaning the dirt on the dishes.
  • the washing nozzle (3) has a small cross-sectional area in order to be able to pressurize water, because decreasing the cross-sectional area of the washing nozzle (3), increases the pressure of the water ejecting therefrom.
  • At least one rotation nozzle (4) is 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 (4) is preferably placed towards an end of the spray arm blade in order to create a higher angular momentum.
  • the rotation nozzle (4) 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 received through the water inlet is transmitted to the washing nozzle (3), rotation nozzle (4) and the counter-rotation nozzle (5) by means of the duct (6).
  • the duct (6) preferably extends from an end of the spray arm body (2) to the other end. Said duct (6) may also be a space provided within the spray arm body (2).
  • At least one duckbill (7) is provided at the side of the duct (6) extending to the counter-rotation nozzle (5), allowing or blocking water flow to the counter-rotation nozzle (5) according to the water pressure.
  • Said duckbill (7) allows water to pass if the water pressure is higher than a given value, thereby enabling water to reach the counter-rotation nozzle (5).
  • the duckbill (7) does not allow water to pass if the water pressure is lower than a given value, and thus water cannot reach the counter-rotation nozzle (5).
  • Said duckbill (7) preferably completely covers a section of the duct (6) like a plug, thereby not allowing water to leak. Water passage is thus only possible if the duckbill (7) opens.
  • the angular momentum which the counter-rotation nozzle (5) creates on the spray arm body (2) is higher than and in opposite direction to the angular momentum created by the rotation nozzle (4).
  • the spray arm body (2) rotates in one direction when the water reaches only to the rotation nozzle (4), and the spray arm body (2) rotates in the other direction when the water reaches both to the rotation nozzle (4) and the counter-rotation nozzle (5).
  • the angular momentum created by the rotation nozzle (4) and the counter-rotation nozzle (5) can be adjusted by varying one of, a plurality of or all of the parameters including, but not limited to their position on the spray arm body (2), water spraying angles, water spraying pressures, and the like.
  • the duckbill (7) is made of an elastomeric material.
  • the duckbill (7) is preferably duck-bill shaped.
  • the elastic properties can be changed by varying one of, a plurality of or all of the parameters, such as varying the materials used in producing the duckbill (7), varying the mixture ratio of the materials if more than one material is used, or changing the physical form of the duckbill (7) (e.g. giving it in an undulated structure). But the variable parameters are not limited to those.
  • the water pressure required by the spray arm (1) of the invention is provided by means of a water pump. Water pressure is varied by means of said water pump, enabling changing the rotational direction of the spray arm body (2).
  • the water flow orientation can be changed thanks to the spray arm body (2) being capable of rotating in varying directions.
  • the portions where water fails to reach are reduced, thereby improving washing efficiency.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Abstract

La présente invention concerne un bras gicleur utilisé en particulier dans des lave-vaisselle, le corps (2) du bras gicleur pouvant être mis en rotation dans des directions variables.
PCT/EP2018/078516 2017-10-31 2018-10-18 Bras gicleur pour lave-vaisselle WO2019086255A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18789135.3A EP3703548A1 (fr) 2017-10-31 2018-10-18 Bras gicleur pour lave-vaisselle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TRA2017/16903 2017-10-31
TR2017/16903A TR201716903A2 (tr) 2017-10-31 2017-10-31 Bi̇r yikama pervanesi̇

Publications (1)

Publication Number Publication Date
WO2019086255A1 true WO2019086255A1 (fr) 2019-05-09

Family

ID=63896197

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/078516 WO2019086255A1 (fr) 2017-10-31 2018-10-18 Bras gicleur pour lave-vaisselle

Country Status (3)

Country Link
EP (1) EP3703548A1 (fr)
TR (1) TR201716903A2 (fr)
WO (1) WO2019086255A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110052458A (zh) * 2019-05-20 2019-07-26 华电水务元氏有限公司 一种用于清洗滤池的装置
CN110403553A (zh) * 2019-08-26 2019-11-05 佛山市顺德区美的洗涤电器制造有限公司 用于洗碗机的喷臂组件和洗碗机
CN117086043A (zh) * 2023-10-17 2023-11-21 常州诺清智能科技有限公司 一种喷淋清洗设备

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2713078A1 (fr) * 1993-12-01 1995-06-09 Gold Star Co Dispositif rotatif réversible pour bras gicleur d'un lave-vaisselle automatique.
DE29509718U1 (de) * 1994-06-16 1995-10-05 Zanussi Elettrodomestici S.P.A., Pordenone Geschirrspüler mit drehendem Sprüharm
US5598976A (en) * 1992-12-04 1997-02-04 Goldstar Co., Ltd. Spray arm pulsation device of a dish washer
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
JPH11262466A (ja) * 1998-03-18 1999-09-28 Matsushita Electric Ind Co Ltd 食器洗浄機
JP3136063B2 (ja) * 1994-12-21 2001-02-19 シャープ株式会社 食器洗い機
CN102858222A (zh) 2010-04-22 2013-01-02 松下电器产业株式会社 餐具清洗机
US20130074886A1 (en) * 2011-09-22 2013-03-28 Whirlpool Corporation Dishwasher with spray system
EP2601878A2 (fr) 2011-12-06 2013-06-12 Miele & Cie. KG Lave-vaisselle avec inversion automatique du sens de rotation du bras pulvérisateur
CN203369879U (zh) 2013-07-08 2014-01-01 美的集团股份有限公司 洗碗机喷臂双向转动结构
WO2016169737A1 (fr) * 2015-04-24 2016-10-27 BSH Hausgeräte GmbH Bras gicleur et lave-vaisselle

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5598976A (en) * 1992-12-04 1997-02-04 Goldstar Co., Ltd. Spray arm pulsation device of a dish washer
FR2713078A1 (fr) * 1993-12-01 1995-06-09 Gold Star Co Dispositif rotatif réversible pour bras gicleur d'un lave-vaisselle automatique.
DE29509718U1 (de) * 1994-06-16 1995-10-05 Zanussi Elettrodomestici S.P.A., Pordenone Geschirrspüler mit drehendem Sprüharm
JP3136063B2 (ja) * 1994-12-21 2001-02-19 シャープ株式会社 食器洗い機
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
JPH11262466A (ja) * 1998-03-18 1999-09-28 Matsushita Electric Ind Co Ltd 食器洗浄機
CN102858222A (zh) 2010-04-22 2013-01-02 松下电器产业株式会社 餐具清洗机
US20130074886A1 (en) * 2011-09-22 2013-03-28 Whirlpool Corporation Dishwasher with spray system
EP2601878A2 (fr) 2011-12-06 2013-06-12 Miele & Cie. KG Lave-vaisselle avec inversion automatique du sens de rotation du bras pulvérisateur
CN203369879U (zh) 2013-07-08 2014-01-01 美的集团股份有限公司 洗碗机喷臂双向转动结构
WO2016169737A1 (fr) * 2015-04-24 2016-10-27 BSH Hausgeräte GmbH Bras gicleur et lave-vaisselle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110052458A (zh) * 2019-05-20 2019-07-26 华电水务元氏有限公司 一种用于清洗滤池的装置
CN110403553A (zh) * 2019-08-26 2019-11-05 佛山市顺德区美的洗涤电器制造有限公司 用于洗碗机的喷臂组件和洗碗机
CN117086043A (zh) * 2023-10-17 2023-11-21 常州诺清智能科技有限公司 一种喷淋清洗设备

Also Published As

Publication number Publication date
EP3703548A1 (fr) 2020-09-09
TR201716903A2 (tr) 2019-05-21

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