EP0202381A1 - Verfahren für die Erzeugung von Ultraschallschwingungen und Vorrichtung zur Zerstäubung einer Flüssigkeit - Google Patents

Verfahren für die Erzeugung von Ultraschallschwingungen und Vorrichtung zur Zerstäubung einer Flüssigkeit Download PDF

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Publication number
EP0202381A1
EP0202381A1 EP85307524A EP85307524A EP0202381A1 EP 0202381 A1 EP0202381 A1 EP 0202381A1 EP 85307524 A EP85307524 A EP 85307524A EP 85307524 A EP85307524 A EP 85307524A EP 0202381 A1 EP0202381 A1 EP 0202381A1
Authority
EP
European Patent Office
Prior art keywords
vibrating element
liquid material
edged portion
ultrasonic
needle valve
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
EP85307524A
Other languages
English (en)
French (fr)
Other versions
EP0202381B1 (de
Inventor
Hideo Hirabayashi
Masami Endo
Kakuro Kokubo
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.)
Tonen General Sekiyu KK
Original Assignee
Toa Nenryo Kogyyo KK
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 Toa Nenryo Kogyyo KK filed Critical Toa Nenryo Kogyyo KK
Publication of EP0202381A1 publication Critical patent/EP0202381A1/de
Application granted granted Critical
Publication of EP0202381B1 publication Critical patent/EP0202381B1/de
Expired 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
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
    • B05B17/0623—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers coupled with a vibrating horn
    • B05B17/063—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers coupled with a vibrating horn having an internal channel for supplying the liquid or other fluent material
    • 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
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
    • B05B17/0623—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers coupled with a vibrating horn
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M27/00—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like
    • F02M27/08—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like by sonic or ultrasonic waves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/04—Injectors peculiar thereto
    • F02M69/041—Injectors peculiar thereto having vibrating means for atomizing the fuel, e.g. with sonic or ultrasonic vibrations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/34—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by ultrasonic means or other kinds of vibrations
    • F23D11/345—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by ultrasonic means or other kinds of vibrations with vibrating atomiser surfaces

Definitions

  • This invention relates generally to the art of atomizing liquid material by ultrasonic vibration, and particularly to an ultrasonic injecting method and injection nozzle suitable for use on a fuel injecting valve for internal combustion engines such as diesel engines, gasoline engines and gas turbine engines, and external combustion engines such as burners for boilers, heating furnaces, heating apparatus and the like, and also for a spray head for drying and producing powdered medicines.
  • a fuel injecting valve for internal combustion engines such as diesel engines, gasoline engines and gas turbine engines, and external combustion engines such as burners for boilers, heating furnaces, heating apparatus and the like
  • a spray head for drying and producing powdered medicines.
  • this invention is useful as an injection nozzle or as an apparatus for atomizing liquid material in various applications such as described above the invention will be more particularly described hereinafter with respect to a fuel injecting nozzle particularly for use with internal combustion engines such as diesel and gasoline engines.
  • This invention is not, however, to be regarded as so limited.
  • the term "liquid material” is intended to mean not only a liquid
  • the cavitation mechanism is unsuitable for application to an injection valve because of difficulty in controlling the deqree of atomizing.
  • the wave mechanism includes the capillary system and the liquid film system.
  • an ultrasonic vibrating element has a capillary aperture formed therethrough. Liquid fuel is introduced through the inlet port of the capillary aperture while the ultrasonic vibrating element is subjected to vibration, whereby the liquid fuel is spread through the outlet of the capillary aperture in a film form over the bottom surface of the vibrating element and then injected in an atomized state.
  • an ultrasonic vibrating element is formed on its forward end with a portion flared as in the form of a poppet valve. Liquid fuel is delivered to and spread over the face portion in a film form and then injected in an atomized state
  • the injection nozzles hitherto proposed have so small capacity for spraying that they are unsuitable for use as an injection nozzle for internal combustion engines such as diesel or gasoline engines which require a larqe amount of atomized fuel.
  • an ultrasonic vibration method of atomizing a liquid material by vibrating a vibrating element by means of ultrasonic vibration generating means is characterized by forming an edged portion at the forward end of said vibrating element and delivering a liquid material to and along said edged portion to atomize the liquid material.
  • liquid fuel may be atomized in a large quantity for injection into an internal combustion enaine.
  • the vibrating element may be continuously vibrated and the delivery of the liquid material to the edged portion of the vibrating element may be either intermittently or continuously effected, thereby eliminatinq the time lag involved in initiating vibration of the vibrating element which is a defect of conventional ultrasonic injection nozzles for internal combustion engines where the vibrating element is vibrated only when it is required to inject liquid fuel.
  • the present invention is applicable to the continuous burning of fuel in a fuel burner and also to spraying for spray drying to produce powdered medicines for example, and for humidifying.
  • the present invention is useful not only in relation to internal combustion engines such as a diesel engine, qasoline engine, gas turbine engine and the like, but also in relation to external combustion engines such as burners for boilers, heating furnaces, heating apparatus and the like for atomizinq liquid fuel in a uniform manner and in a large quantity to thereby provide for attaining complete combustion in a short time, resulting in preventing or reducing emission of soot as well as improving fuel economy.
  • internal combustion engines such as a diesel engine, qasoline engine, gas turbine engine and the like
  • external combustion engines such as burners for boilers, heating furnaces, heating apparatus and the like for atomizinq liquid fuel in a uniform manner and in a large quantity to thereby provide for attaining complete combustion in a short time, resulting in preventing or reducing emission of soot as well as improving fuel economy.
  • the method of the present invention is capable of not only atomizing liquid in a large amount but also atomizing liquid even at a low flow rate at which the prior art is unable to effect atomizing, to thereby enhance fuel efficiency.
  • the ultrasonic injection nozzle 1 includes a generally cylindrical elongated housing 4 havin q a central bore 2 extending centrally therethrough. Threaded to an external thread 6 on the upper portion of the housing 4 is the lower mounting portion of a vibrator holder 8 which has a through bore 12 extending centrally therethrough coaxially with and in longitudinal alignment with the central bore of the housing 4.
  • a vibrating element or vibrator 14 is mounted in the through bore 12 of the vibrator holder 8 and the central bore 2 of the housing 4.
  • the vibrating element 14 comprises an upper body portion 16, an elongated cylindrical vibrator shank 18 having a diameter smaller than that of the body portion 16, and a transition portion 20 connecting the body portion 16 and shank 18.
  • the body portion 16 has an enlarged diameter collar 22 therearound which is clamped to the vibrator holder 8 by a shoulder 24 formed on the inner periphery of the vibrator 8 adjacent its upper end and an annular vibrator retainer 30 fastened to the upper end face of the vibrator holder 8.
  • the shank 18 of the vibrating element 14 extends downwardly or outwardly beyond the housing 4.
  • the forward end of the vibrating element 14, that is, the forward end of the shank portion 18 is formed with an edged portion 32 as will be described in more details hereinafter.
  • a sleeve-like needle valve 34 is slidably mounted on that portion of the vibrating element 14 extending beyond the housing 4.
  • the needle valve 34 is generally of hollow cylindrical shape, and comprises an upper reduced-diameter portion 36 adjacent its upper end, a central large-diameter portion 38, a tapered portion 40 sloping from the large-diameter portion 38, a small-diameter portion 42 connected to the tapered portion 40, and a tapered forward end portion 44 sloping from the small-diameter portion 42.
  • the extreme end of the tapered forward end portion 44 is disposed adjacent the edged portion 32 of the vibrating element 14.
  • the upper reduced-diameter portion 36 of the hollow needle valve 34 extends upwardly beyond an annular shoulder 46 extending radially inwardly from the lower end portion of the housing 4.
  • the hollow needle valve 34 is housed in a needle valve holder 50 which is detachably secured to the housing 4 by means of a holder sheath 52 which is affixed to the outer periphery of the holder 50.
  • the inner configuration of the needle valve holder 50 comprises a large-diameter bore portion 54 in which the central large-diameter portion 38 of the hollow needle valve 34 is adapted to slidably move, a sloped portion 56 complementary to the tapered portion 40 of the needle valve 34, a small-diameter bore portion 58, and a sloped forward end portion.
  • the small-diameter bore portion 58 and sloped forward end portion 60 cooperate with the small-diameter portion 42 and sloped forward end portion 44 of the hollow needle valve 34 to define a liquid fuel supply passage 62.
  • the needle valve holder 50 is formed around its sloped portion 56 with an annular fuel reservoir 64 opening radially inwardly which is in communication with a fuel supply passage 66 extending through the wall of the needle valve holder 50.
  • Said fuel supply passage 66 is in communication with a fuel inlet passage 68 extending through the wall of the housing 4, which inlet passage 68 is in turn connected with a fuel inlet port 70 of the housing 4.
  • the needle valve holder 50 is formed around the upper part of the large-diameter bore portion 54 of the needle valve holder 50 with an annular radially inwardly opening return fuel sump 72 which is connected with a fuel outlet port 78 via a fuel return passage 74 and a fuel outlet passage 76 formed through the walls of the needle valve holder 50 and the housing 4, respectively.
  • a compression spring 80 is disposed in an annular space defined between the peripheral wall of the central bore 2 in the housing 4 and the outer periphery of the vibrator shank 18.
  • the lower end of the compression sprina 80 acts against the top end face of the upper reduced-diameter portion 36 of the hollow needle valve 34 via an annular spring retainer 82 while the upper end of the spring abuts against the bottom surface of an injection pressure regulating member 84 which is a cylindrical member disposed in the space between the peripheral wall of the central bore 2 in the housing 4 and the outer periphery of the vibrator shank 18 and screw threadedly connected to the inner periphery of the housing 4.
  • the spring pressure on the needle valve 34 may be adjusted by rotatinq the injection pressure regulating member 84 relative to the housing 4.
  • liquid fuel is introduced through the fuel inlet port 70 and supplied through the fuel inlet passage 68 and the fuel supply passage 66 into the fuel reservoir 64 which is closed by the tapered portion of the hollow needle valve 34 urged downwardly by the spring 80. Consequently, the pressure in the reservoir 64 is built up as it is continuously supplied with liquid fuel. When the pressure in the fuel reservoir 64 reaches a certain level, the hollow needle valve 34 is caused to move upward against the biasing force of the spring 80.
  • the upward movement of the hollow needle valve 34 causes the fuel reservoir 64 to be opened to the fuel supply passaqe 62, which is thus supplied with the liquid fuel. From the fuel supply passage 62, the fuel is delivered to the edged portion 32 formed on the forward end of the vibrating element 14.
  • the edged portion 32 of the vibrating element 14 may be in the form of a staircase including three concentric steps having progressively reduced diameters as shown in Fig. 1, or it may comprise two or five steps as shown in Figs. 2 and 3.
  • the edged portion 32 is formed around or along its outer periphery with an edge or edges.
  • the edged portion 32 as shown in Figs. 1 to 3 is of a stepped configuration having progressively reduced diameters
  • the steps of the edged portion 32 may have progressively increased diameters or steps of progressively reduced and then progressively increased diameters.
  • the geometry such as the width (W) and height (h) of each step is such that the edge of the step may act to render the liquid fuel filmy and to dam the liquid flow.
  • the height (h) and width (W) of each step are 1 ⁇ h/W ⁇ 10. Particularly in the vibrating element having the configuration as shown in Fig. 3 the height (h) is preferably less than 4mm.
  • the wave length ( ⁇ ) of the ultrasonic waves varies with the materials used for the vibrating element such as Inconel, titanium, etc. and is usually in the range of 5 to 50 cm.
  • the output of the ultrasonic oscillator for vibrating the vibrating element is substantially 10 W and the amplitude and frequency of the vibrating element are 30 to 70mm and 20 to 50kHz, respectively.
  • the diameter (D) of the vibrating element is preferably in the range of ⁇ /10 to ⁇ /4. The flow rate of the liquid to be processed increases as the amplitude and diameter (D) are larger.
  • the vibrating element 14 is continuously vibrated by ultrasonic vibration generating means 100 operatively connected to the body portion 16, so that the liquid fuel is atomized and injected outwardly as it is delivered to the edged portion 32.
  • the small-diameter portion 42 of the hollow needle valve 34 is formed with a plurality of, say, two diametrically opposed angularly extending grooves 43 (see Fig. 5). It has been found that such arrangement causes turbulence to be produced in the fuel supply passage as well as imparting a swirl to the fuel being injected to thereby eliminate uneven injection. In addition, such an arrangement may also serve to promote separation of the spray of fuel off the edges of the edged portion 32 as well as to enhance the atomization.
  • the fuel outlet 78 is connected via a suitable conduit (not shown) with the fuel tank so that the excess fuel is recirculated to the tank.
  • the hollow needle valve 34 is moved downward under the action of the spring 80 to close the fuel reservoir 64, so that the delivery of fuel to the edged portion 32 of the vibrating element 14 is interrupted, and the fuel injection from the nozzle 1 is discontinued.
  • the injection nozzle being described with reference to the accompanying drawings is capable of providing a large amount of injection at 0.06 cm 3 per injection which makes it possible to put the nozzle to practical use as an injection nozzle for an internal combustion engine. This is 500 to 1,000 times as high as the flow rate as was reported to be possible with the prior art ultrasonic injection nozzle.
  • the vibration element 14 having the edged portion 32 is so arranged adjacent the outlet port of the injection nozzle whereby a very compact ultrasonic injection nozzle is provided.
  • the present invention is also applicable to a burner for continuous combustion in which the flow rate may be in the order of 100 f/hr.
  • This invention may also be used as a spray drying apparatus for producing powdered medicines.
  • this invention is also characterized in that it is capable of providing generally uniform distribution in atomized particles with an average particle radius in the order of 10 to 30 ⁇ m.
  • the present invention provides an ultrasonic injecting method and injecting nozzle capable of not only atomizing a liquid material in a uniform manner and in a large quantity but also atomizing a liquid material even at a low flow rate, on either an intermittent or a continuous basis.
  • the ultrasonic injecting method and injection nozzle according to this invention is suitable for use on internal combustion engines such as a diesel engine, gasoline engine, gas turbine engine and the like, for use on external combustion engines such as burners for boilers, heating furnaces, heating apparatus and the like, or for use on a spraying or humidifying apparatus.
  • internal combustion engines such as a diesel engine, gasoline engine, gas turbine engine and the like
  • external combustion engines such as burners for boilers, heating furnaces, heating apparatus and the like
  • spraying or humidifying apparatus for use on a spraying or humidifying apparatus.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Special Spraying Apparatus (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
EP19850307524 1985-05-13 1985-10-17 Verfahren für die Erzeugung von Ultraschallschwingungen und Vorrichtung zur Zerstäubung einer Flüssigkeit Expired EP0202381B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10093585A JPS61259780A (ja) 1985-05-13 1985-05-13 超音波霧化用振動子
JP100935/85 1985-05-13

Publications (2)

Publication Number Publication Date
EP0202381A1 true EP0202381A1 (de) 1986-11-26
EP0202381B1 EP0202381B1 (de) 1989-12-20

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EP19850307524 Expired EP0202381B1 (de) 1985-05-13 1985-10-17 Verfahren für die Erzeugung von Ultraschallschwingungen und Vorrichtung zur Zerstäubung einer Flüssigkeit
EP86303613A Withdrawn EP0202100A1 (de) 1985-05-13 1986-05-13 Schwingungsglied für Ultraschallzerstäubung

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP86303613A Withdrawn EP0202100A1 (de) 1985-05-13 1986-05-13 Schwingungsglied für Ultraschallzerstäubung

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EP (2) EP0202381B1 (de)
JP (1) JPS61259780A (de)
CN (1) CN85107669B (de)
CA (2) CA1282657C (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0390603A1 (de) * 1989-03-30 1990-10-03 Tonen Corporation Kraftstoffversorgungsanlage für einen Brennkraftmotor mit Ultraschallzerstäubung
FR2665849A1 (fr) * 1990-08-20 1992-02-21 Dynamad Dispositif ultrasonique pour la production en continu de particules.
US5193745A (en) * 1989-03-07 1993-03-16 Karl Holm Atomizing nozzle device for atomizing a fluid and an inhaler
US5801106A (en) * 1996-05-10 1998-09-01 Kimberly-Clark Worldwide, Inc. Polymeric strands with high surface area or altered surface properties
US6020277A (en) * 1994-06-23 2000-02-01 Kimberly-Clark Corporation Polymeric strands with enhanced tensile strength, nonwoven webs including such strands, and methods for making same
US6053424A (en) * 1995-12-21 2000-04-25 Kimberly-Clark Worldwide, Inc. Apparatus and method for ultrasonically producing a spray of liquid
WO2004065776A1 (de) 2003-01-16 2004-08-05 Mahle Gmbh Verfahren zum einbringen von shakerbohrungen in den kühlkanal eines einteiligen kolbens

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA969680B (en) 1995-12-21 1997-06-12 Kimberly Clark Co Ultrasonic liquid fuel injection on apparatus and method
US6543700B2 (en) 2000-12-11 2003-04-08 Kimberly-Clark Worldwide, Inc. Ultrasonic unitized fuel injector with ceramic valve body
US6663027B2 (en) 2000-12-11 2003-12-16 Kimberly-Clark Worldwide, Inc. Unitized injector modified for ultrasonically stimulated operation
CN2562869Y (zh) * 2002-08-09 2003-07-30 李化民 液体催化机
US7735751B2 (en) * 2006-01-23 2010-06-15 Kimberly-Clark Worldwide, Inc. Ultrasonic liquid delivery device
FR2916810B1 (fr) * 2007-05-31 2009-08-28 Renault Sas Dispositif d'injection de fluide
CN101932877B (zh) * 2007-11-19 2013-01-16 喷雾系统公司 具有锥形喷雾特征的超声雾化喷嘴
CN101592100B (zh) * 2009-04-24 2011-10-05 靳北彪 发动机用气相脉冲正时震源燃油喷射器
DE102009056839A1 (de) * 2009-12-03 2011-06-09 Siemens Aktiengesellschaft Verfahren zum Betrieb einer Dampfturbine, Dampfturbine und Zerstäuber
KR101363554B1 (ko) 2009-12-04 2014-02-18 가부시키가이샤 무라타 세이사쿠쇼 압전 마이크로 블로어
CN112881531B (zh) * 2020-11-19 2024-05-03 北京工业大学 一种基于喷水式超声检测手段的喷头夹具

Citations (6)

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DE852275C (de) * 1948-10-02 1952-10-13 Ultrakust Geraetebau Dipl Ing Vorsatztubus fuer einen Ultraschallsender zur UEbertragung von Ultraschallwellen auf den menschlichen Koerper
FR1271341A (fr) * 1959-12-14 1961-09-08 Hitachi Ltd Procédé d'application de matériaux de revêtement et dispositifs pour sa mise en oeuvre
US3756575A (en) * 1971-07-19 1973-09-04 Resources Research & Dev Corp Apparatus for producing a fuel-air mixture by sonic energy
FR2180753A1 (de) * 1972-12-01 1973-11-30 Plessey Handel Investment Ag
US4048963A (en) * 1974-07-18 1977-09-20 Eric Charles Cottell Combustion method comprising burning an intimate emulsion of fuel and water
EP0159189A2 (de) * 1984-04-19 1985-10-23 Toa Nenryo Kogyo Kabushiki Kaisha Verfahren zur Ultraschallschwingung und Vorrichtung zur Zerstäubung von Flüssigkeit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3373752A (en) * 1962-11-13 1968-03-19 Inoue Kiyoshi Method for the ultrasonic cleaning of surfaces
US3400892A (en) * 1965-12-02 1968-09-10 Battelle Development Corp Resonant vibratory apparatus
US4474326A (en) * 1981-11-24 1984-10-02 Tdk Electronics Co., Ltd. Ultrasonic atomizing device
DE3233901C2 (de) * 1982-09-13 1986-11-06 Lechler Gmbh & Co Kg, 7012 Fellbach Ultraschall-Flüssigkeitszerstäuber

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE852275C (de) * 1948-10-02 1952-10-13 Ultrakust Geraetebau Dipl Ing Vorsatztubus fuer einen Ultraschallsender zur UEbertragung von Ultraschallwellen auf den menschlichen Koerper
FR1271341A (fr) * 1959-12-14 1961-09-08 Hitachi Ltd Procédé d'application de matériaux de revêtement et dispositifs pour sa mise en oeuvre
US3756575A (en) * 1971-07-19 1973-09-04 Resources Research & Dev Corp Apparatus for producing a fuel-air mixture by sonic energy
FR2180753A1 (de) * 1972-12-01 1973-11-30 Plessey Handel Investment Ag
US4048963A (en) * 1974-07-18 1977-09-20 Eric Charles Cottell Combustion method comprising burning an intimate emulsion of fuel and water
EP0159189A2 (de) * 1984-04-19 1985-10-23 Toa Nenryo Kogyo Kabushiki Kaisha Verfahren zur Ultraschallschwingung und Vorrichtung zur Zerstäubung von Flüssigkeit

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5193745A (en) * 1989-03-07 1993-03-16 Karl Holm Atomizing nozzle device for atomizing a fluid and an inhaler
EP0390603A1 (de) * 1989-03-30 1990-10-03 Tonen Corporation Kraftstoffversorgungsanlage für einen Brennkraftmotor mit Ultraschallzerstäubung
FR2665849A1 (fr) * 1990-08-20 1992-02-21 Dynamad Dispositif ultrasonique pour la production en continu de particules.
EP0472479A1 (de) * 1990-08-20 1992-02-26 I.P.S. Industrie des Poudres Sphériques S.A. Ultraschallgerät zur kontinuierlichen herstellung von Teilchen
US5198157A (en) * 1990-08-20 1993-03-30 Dynamad S. A. R. L. Ultrasonic device for the continuous production of particles
US6020277A (en) * 1994-06-23 2000-02-01 Kimberly-Clark Corporation Polymeric strands with enhanced tensile strength, nonwoven webs including such strands, and methods for making same
US6053424A (en) * 1995-12-21 2000-04-25 Kimberly-Clark Worldwide, Inc. Apparatus and method for ultrasonically producing a spray of liquid
US5801106A (en) * 1996-05-10 1998-09-01 Kimberly-Clark Worldwide, Inc. Polymeric strands with high surface area or altered surface properties
WO2004065776A1 (de) 2003-01-16 2004-08-05 Mahle Gmbh Verfahren zum einbringen von shakerbohrungen in den kühlkanal eines einteiligen kolbens

Also Published As

Publication number Publication date
EP0202100A1 (de) 1986-11-20
CN85107669A (zh) 1986-11-12
EP0202381B1 (de) 1989-12-20
JPS61259780A (ja) 1986-11-18
CN85107669B (zh) 1988-12-21
CA1275132A (en) 1990-10-09
CA1282657C (en) 1991-04-09

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