EP0610853A1 - Zerstäuber - Google Patents

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Publication number
EP0610853A1
EP0610853A1 EP94101807A EP94101807A EP0610853A1 EP 0610853 A1 EP0610853 A1 EP 0610853A1 EP 94101807 A EP94101807 A EP 94101807A EP 94101807 A EP94101807 A EP 94101807A EP 0610853 A1 EP0610853 A1 EP 0610853A1
Authority
EP
European Patent Office
Prior art keywords
liquid
gas
liquid stream
flowpath
flow
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.)
Granted
Application number
EP94101807A
Other languages
English (en)
French (fr)
Other versions
EP0610853B1 (de
Inventor
Elhanan Tavor
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Priority claimed from IL104666A external-priority patent/IL104666A0/xx
Priority claimed from IL106616A external-priority patent/IL106616A/xx
Application filed by Individual filed Critical Individual
Publication of EP0610853A1 publication Critical patent/EP0610853A1/de
Application granted granted Critical
Publication of EP0610853B1 publication Critical patent/EP0610853B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0441—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
    • B05B7/0475—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber with means for deflecting the peripheral gas flow towards the central liquid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/10—Spray pistols; Apparatus for discharge producing a swirling discharge

Definitions

  • U.S. Patent 4,341,530 describes a slurry atomizer wherein a pressurized helical flow of steam proceeds about a longitudinal axis, along which a liquid channel is defined. Impingement of the helical flow of stream on the liquid channel draws liquid through the channel and causes breakup of the resulting axial liquid flow into droplets.
  • the present invention seeks to provide an improved atomizer.
  • an atomizer comprising a liquid inlet, a gas inlet arranged to receive a pressurized flow of gas, a liquid flowpath extending from the liquid inlet to a liquid stream outlet, and a curved gas flowpath extending from the gas inlet to a location adjacent the liquid stream outlet and including a supersonic flow region adjacent the liquid stream outlet, whereby supersonic gas flow adjacent the liquid stream outlet produces a shock wave which impinges on a liquid stream passing out through the liquid stream outlet for atomizing the liquid stream.
  • the curved gas flowpath comprises a generally helical flowpath.
  • the generally helical flowpath extends about the liquid flowpath, which preferably is axial.
  • the generally helical flowpath includes a truncated conical subsonic flow region upstream of and adjacent to the supersonic flow region.
  • a method for atomizing comprising the steps of providing a pressurized flow of gas to a gas inlet and through a curved gas flowpath, providing a liquid flowpath extending from the liquid inlet to a liquid stream outlet and causing the pressurized flow of gas to undergo supersonic flow at a supersonic flow region adjacent the liquid stream outlet, thereby to produce a shock wave which impinges on a liquid stream passing out through the liquid stream outlet for atomizing the liquid stream.
  • the gas passes along a generally helical flowpath.
  • the generally helical flowpath extends about the liquid flowpath, which preferably is axial.
  • the gas passes through a truncated conical subsonic flow region upstream of and adjacent to the supersonic flow region.
  • the flow of the liquid stream is produced by suction resulting from the flow of gas.
  • the atomizing apparatus of the invention preferably comprises a housing 10 defining a pressurized gas inlet opening 12 and a liquid inlet opening 14.
  • Pressurized gas inlet opening 12 is preferably threaded so as to sealingly accept a suitably threaded pressurized gas nipple assembly 16, through which pressurized gas, such as air under a pressure in the range of 5.5 - 6.5 atmospheres, is supplied to the housing 10.
  • pressurized gas such as air under a pressure in the range of 5.5 - 6.5 atmospheres
  • Liquid inlet opening 14 preferably communicates with a multiple stepped axial bore 18 which communicates with pressurized gas inlet opening 12.
  • Multiple stepped axial bore 18 includes a threaded portion 20, adjacent inlet 14, followed by a narrowed intermediate portion 22.
  • Portion 22 is followed by a further narrowed intermediate portion 24, which communicates with inlet 12.
  • Intermediate portion 24 is followed by a tapered down portion 26, which, in turn, is followed by a yet further narrowed portion 28.
  • Portion 28 is followed by another tapered portion 30, which is followed by an elongate outlet portion 32.
  • a liquid inlet pathway defining member 34 is threadably engaged in bore 18 and includes an inlet portion 38, which is located adjacent inlet 14.
  • Member 34 also includes a threaded portion 40, which engages threaded bore portion 20, followed by a narrowed intermediate portion 42, which is formed with a recess 44 which accommodates a sealing ring 46.
  • Portion 42 is followed by a further narrowed intermediate portion 48, which is followed by a grooved helical gas pathway defining portion 50, communicating with gas inlet 12.
  • Portion 50 is followed by a slightly tapered portion 52, which terminates in a sharply tapered end portion 54.
  • the sharply tapered end portion 54 of member 34 lies adjacent tapered bore portion 30 and elongate outlet bore portion 32.
  • the junction of the tapered bore portion 30 and of the outlet bore portion 32 defines the boundary between subsonic and supersonic gas flow regions.
  • Liquid flows through a successively narrowing bore 58 in member 34 from a threaded liquid inlet 60 which receives a liquid inlet nipple assembly 62 to an outlet adjacent end portion 54 and elongate outlet bore portion 32.
  • the tangential component of the gas flow adjacent the liquid flow draws the liquid flow through bore 58 from a liquid supply which may be unpressurized.
  • Shock waves generated by supersonic flow of gas in the region between end portion 54 of member 34 and elongate outlet bore portion 32 of housing 10 impinge obliquely on the liquid flow and produce atomization thereof.
  • the substantial tangential gas flow creates a significant vacuum drawing the liquid into supersonic atomizing engagement therewith.
  • the relatively high vacuum which is realized using the present invention is believed to significantly enhance its atomizing efficiency, inter alia due to a high level of evaporation resulting therefrom.

Landscapes

  • Nozzles (AREA)
  • Special Spraying Apparatus (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
EP94101807A 1993-02-09 1994-02-07 Zerstäuber und Verfahren zur Zerstäubung Expired - Lifetime EP0610853B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IL104666A IL104666A0 (en) 1993-02-09 1993-02-09 Method and device for atomizing a liquid
IL10466693 1993-02-09
IL10661693 1993-08-08
IL106616A IL106616A (en) 1993-08-08 1993-08-08 Atomizer

Publications (2)

Publication Number Publication Date
EP0610853A1 true EP0610853A1 (de) 1994-08-17
EP0610853B1 EP0610853B1 (de) 1998-06-03

Family

ID=26322574

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94101807A Expired - Lifetime EP0610853B1 (de) 1993-02-09 1994-02-07 Zerstäuber und Verfahren zur Zerstäubung

Country Status (11)

Country Link
EP (1) EP0610853B1 (de)
JP (1) JP3498988B2 (de)
KR (1) KR100319431B1 (de)
CN (1) CN1059361C (de)
AT (1) ATE166800T1 (de)
AU (1) AU684728B2 (de)
BR (1) BR9400460A (de)
DE (1) DE69410652T2 (de)
ES (1) ES2119916T3 (de)
HU (1) HUT71758A (de)
PL (1) PL302182A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6003789A (en) * 1997-12-15 1999-12-21 Aec Oil Sands, L.P. Nozzle for atomizing liquid in two phase flow
CN103447184A (zh) * 2013-09-10 2013-12-18 中国矿业大学 一种脉冲水射流吸气雾化装置
US12090555B2 (en) 2018-10-25 2024-09-17 Mitsubishi Heavy Industries, Ltd. Atomizer nozzle, atomizing device, method for producing metal powder, and metal powder

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0878560B1 (de) * 1997-05-16 2004-09-29 Tokyo Electron Limited Dampferzeugungsverfahren und Vorrichtung zur Durchführung dieses Verfahren
JP4341864B2 (ja) * 1999-07-26 2009-10-14 澁谷工業株式会社 気液混合流の噴射装置
JP3925000B2 (ja) 1999-09-06 2007-06-06 株式会社日立製作所 噴霧器及びそれを用いた分析装置
DE10349642A1 (de) * 2003-10-21 2005-05-19 Bielomatik Leuze Gmbh + Co Kg Vorrichtung zur Aerosolerzeugung und Injektoreinheit
JP2006175489A (ja) * 2004-12-24 2006-07-06 Aisin Seiki Co Ltd 冷却媒体・離型剤噴霧装置
JP2006247619A (ja) * 2005-03-14 2006-09-21 Sony Corp ２流体ノズル及び洗浄装置
WO2006137205A1 (ja) * 2005-06-22 2006-12-28 Tokyo Institute Of Technology 液体導入プラズマシステム
JP4971708B2 (ja) * 2006-07-14 2012-07-11 株式会社いけうち 二流体ノズル
CN101905201B (zh) * 2010-07-09 2013-01-23 中冶京诚工程技术有限公司 无气阻的新型气雾喷嘴及气雾形成方法
CN102330197A (zh) * 2011-09-26 2012-01-25 江苏万工科技集团有限公司 一种和毛油气动雾化装置
CN103567106A (zh) * 2012-08-10 2014-02-12 苏州宏久航空防热材料科技有限公司 一种玻璃棉用液体粘结剂超声雾化装置及其雾化方法
CN103846172B (zh) * 2012-11-28 2016-05-18 山东中烟工业有限责任公司青岛卷烟厂 外混式双介质雾化喷嘴
CN103801479B (zh) * 2014-02-20 2016-05-25 东莞市楷德精密机械有限公司 液体雾化喷涂装置
CN105251628A (zh) * 2015-08-28 2016-01-20 宁波市创佳工业设计有限公司 一种新型美容喷枪
JP6311894B2 (ja) * 2016-02-22 2018-04-18 Ｓｈｉｍａｄａ Ａｐｐｌｉ合同会社 スプレー塗布における糸引き防止方法
CN105797887A (zh) * 2016-05-27 2016-07-27 广州丹绮环保科技有限公司 雾化喷嘴及其雾化设备
CN105921325B (zh) * 2016-06-27 2018-12-18 温州天球电器有限公司 汽车玻璃升降器的导轨喷油装置
CN107352170A (zh) * 2017-08-17 2017-11-17 安徽高德韦尔精密部件有限公司 一种气雾阀可调节雾化角度按钮
CN111250283B (zh) * 2020-03-13 2021-06-11 北京控制工程研究所 一种适用于急速冷冻环境下的带辅助加热装置的雾化喷嘴
CN114087693B (zh) * 2021-11-08 2022-12-09 佛山市南海科日超声电子有限公司 一种液腔排空装置及液腔排空方法
CN116213179B (zh) * 2023-05-10 2023-07-28 通威微电子有限公司 超声波雾化喷胶装置、系统和籽晶粘接方法
FR3159915A1 (fr) * 2024-03-11 2025-09-12 Fastnaet Dispositif de nettoyage projetant un jet formé à partir d’un liquide et d’un gaz sous pression

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB894776A (en) * 1958-08-11 1962-04-26 John William Hession Improvements in or relating to an aerosol fog spray device
US3908903A (en) 1974-02-11 1975-09-30 Jr Samuel L Burns Snow making apparatus and method
US3923248A (en) * 1973-10-26 1975-12-02 Decafix Ltd Liquid fuel atomizer
US3980233A (en) 1974-10-07 1976-09-14 Parker-Hannifin Corporation Air-atomizing fuel nozzle
US4241877A (en) * 1978-10-16 1980-12-30 Hughes Sciences Group, Inc. Stable vortex generating device
US4335677A (en) 1979-10-25 1982-06-22 Sumitomo Light Metal Industries, Ltd. Coating of the inner surface of tubes
US4341530A (en) 1979-12-05 1982-07-27 The United States Of America As Represented By The Department Of Energy Slurry atomizer for a coal-feeder and dryer used to provide coal at gasifier pressure
EP0085583A2 (de) * 1983-02-22 1983-08-10 Lee, Smith & Zickert Verfahren und Vorrichtung zum Feinzerstäuben von Flüssigkeiten
US4406404A (en) 1980-06-12 1983-09-27 Kabushiki Kaisha Komatsu Seisakusho Diesel fuel injection nozzle
US4595143A (en) 1983-07-20 1986-06-17 Parker-Hannifin Corporation Air swirl nozzle
US4773596A (en) 1987-04-06 1988-09-27 United Technologies Corporation Airblast fuel injector
WO1989000086A1 (fr) * 1987-07-08 1989-01-12 Ing. Erich Pfeiffer Gmbh & Co. Kg Distributeur manuel de milieux
US4834343A (en) 1985-07-13 1989-05-30 Boyes Adrian P Gas liquid contacting method
US4943704A (en) 1989-02-06 1990-07-24 Ryder International Corporation Humidifier apparatus
US4946101A (en) 1988-06-10 1990-08-07 V.I.B. Apparatebau Gmbh Atomizer
US5044559A (en) 1988-11-02 1991-09-03 United Technologies Corporation Gas assisted liquid atomizer
US5059357A (en) 1989-06-05 1991-10-22 Hartmut Wolf Vortex chamber atomizer
US5181661A (en) 1990-06-01 1993-01-26 Ab Ingredients Ltd. Electrostatic spray apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5020723A (en) * 1989-08-10 1991-06-04 Crist Lawrence E Hot melt glue spraying device

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB894776A (en) * 1958-08-11 1962-04-26 John William Hession Improvements in or relating to an aerosol fog spray device
US3923248A (en) * 1973-10-26 1975-12-02 Decafix Ltd Liquid fuel atomizer
US3908903A (en) 1974-02-11 1975-09-30 Jr Samuel L Burns Snow making apparatus and method
US3980233A (en) 1974-10-07 1976-09-14 Parker-Hannifin Corporation Air-atomizing fuel nozzle
US4241877A (en) * 1978-10-16 1980-12-30 Hughes Sciences Group, Inc. Stable vortex generating device
US4335677A (en) 1979-10-25 1982-06-22 Sumitomo Light Metal Industries, Ltd. Coating of the inner surface of tubes
US4341530A (en) 1979-12-05 1982-07-27 The United States Of America As Represented By The Department Of Energy Slurry atomizer for a coal-feeder and dryer used to provide coal at gasifier pressure
US4406404A (en) 1980-06-12 1983-09-27 Kabushiki Kaisha Komatsu Seisakusho Diesel fuel injection nozzle
EP0085583A2 (de) * 1983-02-22 1983-08-10 Lee, Smith & Zickert Verfahren und Vorrichtung zum Feinzerstäuben von Flüssigkeiten
US4595143A (en) 1983-07-20 1986-06-17 Parker-Hannifin Corporation Air swirl nozzle
US4834343A (en) 1985-07-13 1989-05-30 Boyes Adrian P Gas liquid contacting method
US4773596A (en) 1987-04-06 1988-09-27 United Technologies Corporation Airblast fuel injector
WO1989000086A1 (fr) * 1987-07-08 1989-01-12 Ing. Erich Pfeiffer Gmbh & Co. Kg Distributeur manuel de milieux
US4946101A (en) 1988-06-10 1990-08-07 V.I.B. Apparatebau Gmbh Atomizer
US5044559A (en) 1988-11-02 1991-09-03 United Technologies Corporation Gas assisted liquid atomizer
US4943704A (en) 1989-02-06 1990-07-24 Ryder International Corporation Humidifier apparatus
US5059357A (en) 1989-06-05 1991-10-22 Hartmut Wolf Vortex chamber atomizer
US5181661A (en) 1990-06-01 1993-01-26 Ab Ingredients Ltd. Electrostatic spray apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6003789A (en) * 1997-12-15 1999-12-21 Aec Oil Sands, L.P. Nozzle for atomizing liquid in two phase flow
CN103447184A (zh) * 2013-09-10 2013-12-18 中国矿业大学 一种脉冲水射流吸气雾化装置
US12090555B2 (en) 2018-10-25 2024-09-17 Mitsubishi Heavy Industries, Ltd. Atomizer nozzle, atomizing device, method for producing metal powder, and metal powder

Also Published As

Publication number Publication date
HU9400367D0 (en) 1994-05-30
KR940019358A (ko) 1994-09-14
BR9400460A (pt) 1994-09-27
PL302182A1 (en) 1994-08-22
CN1059361C (zh) 2000-12-13
KR100319431B1 (ko) 2002-07-08
CN1094660A (zh) 1994-11-09
AU5497894A (en) 1994-08-11
AU684728B2 (en) 1998-01-08
JP3498988B2 (ja) 2004-02-23
ES2119916T3 (es) 1998-10-16
HUT71758A (en) 1996-01-29
ATE166800T1 (de) 1998-06-15
JPH06238211A (ja) 1994-08-30
DE69410652D1 (de) 1998-07-09
EP0610853B1 (de) 1998-06-03
DE69410652T2 (de) 1999-02-04

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