EP0782885B1 - Dispositif de pulverisation a rendement éléve notamment d'eau sous forme de micro-gouttelettes - Google Patents
Dispositif de pulverisation a rendement éléve notamment d'eau sous forme de micro-gouttelettes Download PDFInfo
- Publication number
- EP0782885B1 EP0782885B1 EP97400008A EP97400008A EP0782885B1 EP 0782885 B1 EP0782885 B1 EP 0782885B1 EP 97400008 A EP97400008 A EP 97400008A EP 97400008 A EP97400008 A EP 97400008A EP 0782885 B1 EP0782885 B1 EP 0782885B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tank
- liquid
- opening
- waves
- piezo
- 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
Links
Images
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
-
- 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
- B05B1/24—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means incorporating means for heating the liquid or other fluent material, e.g. electrically
-
- 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
- B05B17/0615—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 spray being produced at the free surface of the liquid or other fluent material in a container and subjected to the vibrations
-
- 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
- B05B7/0012—Apparatus for achieving spraying before discharge from the apparatus
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S261/00—Gas and liquid contact apparatus
- Y10S261/48—Sonic vibrators
Definitions
- the present invention relates to a spray device with high yield, especially of water in the form of micro-droplets.
- the waves propagate in the water in a nonlinear way and it builds up static pressure towards the surface of water, hence the appearance of a liquid jet called “acoustic fountain", which is surrounded by a mist of micro-droplets.
- An air current created in the vicinity of the water jet then evacuates the micro-droplets to the outside of the device, in the ambient air.
- the energy supplied by the transducer is only partially used to generate micro-droplets because the face of the transducer which is not in contact with water emits waves which are absorbed by the transducer support and also in the tank by multi-reflection and are lost.
- the present invention aims to provide a device for spraying which has a high yield by eliminating in particular the above problem.
- the subject of the present invention is a spraying device liquid, comprising a first elongated tank closed at one of its ends by a first free face of a piezoelectric transducer able to emit waves in a liquid filling the tank and open to its end opposite the piezoelectric transducer, characterized by the the piezoelectric transducer has a second free face, opposite its first free face, and that a second elongated tank is arranged, relative to the piezoelectric transducer, symmetrically to the first tank, the second tank being closed at one of its ends by said second free face of the piezoelectric transducer, which is thus able to also emit waves in a liquid filling the second tank, this second tank being open at its end opposite to the piezoelectric transducer.
- the device according to the invention has a high efficiency since it allows to generate many more droplets than if it does not had only one tank.
- the two tanks are suitable for being completely filled with liquid.
- the waves emitted by the piezoelectric transducer in each tank are concentrated in the vicinity of the opening of each tank, the cross section of each tank with progressive narrowing towards the opening of the tank.
- the part of each tank having a narrowing in section has a paraboloid shape of revolution whose focal point is located near the opening corresponding.
- the liquid contained in each tank is not very sensitive to the accelerations of the medium in which is installed the device according to the invention.
- the device according to the invention can be on board an automobile, boat or plane.
- each tank are made of a hard material, capable of reflecting waves, and are shaped so as to concentrate the waves in the vicinity of the central part of the opening of the tank.
- each tank fills at least two separate functions, i.e. limiting the risk of overflowing the liquid outside the tank on the one hand, and a concentration of waves at near the central part of the tank opening on the other hand.
- each tank has, near its opening, heating means, by example of electrical resistances, allowing the temperature of the liquid just before spraying.
- part of the acoustic energy provided by the waves is converted into heat, from preferably only in the vicinity of the opening of each tank, otherwise in the entire wall of each tank, thanks to the presence of a material acoustically absorbent such as a polymer.
- polyester from stratification marketed by the company SOLOPLAST.
- the polymer can be found only in the vicinity of the opening of the tank, or constitute the entire tank, in which case the reflection of waves may be less good but sufficient to obtain the concentration waves near the opening, while the view walls heat all of the liquid in it.
- the device according to the invention is provided with ventilation means to create air circulation in the vicinity of the surface of the liquid contained in each tank.
- the device includes a collection container in which the tanks are placed, a pump being connected on the one hand to the collection container, on the other hand to each tank, and being able to circulate the liquid continuously between each tank from which it overflows and the collection container where it is collected, a liquid reservoir, also connected to the pump, allowing keep the amount of liquid circulating in the device constant compensating for the consumption of liquid necessary for the production of droplets.
- the instability of the liquid level at the opening of each tank which could result from unpredictable overflows due to strong accelerations undergone by the device, is mainly compensated by the fact that, the liquid constantly overflowing and forced to the opening of each tank, even strong accelerations cannot cause a slight fluctuation in the amount of liquid overflowing, without appreciably changing the level of the liquid at the opening of each tank.
- the pump flow is high enough to generate a jet of liquid at the opening of each tank, regardless of the acoustic fountain which results from the sole action of ultrasonic waves.
- the energy of the waves can be mobilized mainly for spraying liquid, forming fountains acoustic being facilitated by the fact that the liquid jets are already created by the pump.
- the diameter of the opening of each tank close to that of the acoustic fountain which would naturally formed by waves in the absence of a pump, so that best superimpose the water jet formed by the pump and the fountain acoustics generated by waves.
- a deflector is provided in the extension of the opening of each tank, to retain large drops of liquid which are thus collected in the collection container, while the air flow generated by the ventilation means evacuates the micro-droplets to the outside of the device.
- the device shown in the drawing comprises two elongated tanks 1 a, 1 b, revolution which each comprise a cylindrical base 2 a, 2 b and an upper portion 3 a, 3 b whose cross section tapers towards an opening 4 a , 4 b .
- Each opening can be circular, as shown in Figure 2 or scalloped as shown in Figure 3, or provided with a central waveguide which closes its central part and leaves only one annular passage, as shown in Figure 4.
- Each tank 1 a , 1 b is intended to be completely filled with water.
- a piezoelectric transducer 5 constituted by a disc-shaped ceramic is placed between the two tanks 1 a , 1 b , opposite their respective openings 4 a , 4 b .
- the transducer 5 which has two opposite free faces 5 a , 5 b each constituting the bottom of a tank 1 a , 1 b , is capable of emitting ultrasonic waves in the water contained in each tank, in the direction of the corresponding opening 4 a , 4 b .
- each tank is made for example of steel stainless material which is hard enough to reflect waves in absorbing minimal energy.
- the converging shape of the walls of each tank is determined by so as to concentrate the waves in the central part of the opening corresponding.
- the tanks 1 a , 1 b are housed inside a closed container 6 which constitutes a collection container within the meaning of the invention.
- a fan 7 driven by a motor not shown.
- a water tank 8 in which is housed a pump 9 connected on the one hand to each tank 1 a , 1 b via a first conduit 10, d on the other hand to the collection container 6 via a second conduit 11, two openings 41 a , 41 b of which open opposite the open ends of each tank and two other openings 41 c of which open in the vicinity of the transducer 5.
- the fan 7 is housed in a common compartment 12 of the collection container 6.
- This compartment 12 is delimited by an outer wall 13 of the collection container 6 and by a sealed internal partition 14 which leaves two passages 15 free to compartments 16 a and 16 b each containing a tank.
- a stream of air is thus created in each compartment 16a, 16b, between a plurality of baffles 17 which carry air to an opening 18 a, 18 b which escape the air and the water droplets formed above the openings of each tank, as indicated by the arrows 19.
- each tank 1, 1b is enclosed in a baffle-shaped spherical segment 20a, 20b of axis substantially perpendicular to the longitudinal axis of each vessel, and whose concavity is opposite to the traveling direction of air flow.
- Each cap 20 a, 20 b is secured to the outer wall of the vessel 1 as a seal 21a, 21b.
- electrical resistors 22 are provided which are inserted into the thickness of the wall of each tank and allow the water to be heated before being sprayed.
- the heating power is calculated so as to heat only the periphery of the jet to limit the electrical power required.
- Heating can also be obtained by removing part of the acoustic waves to heat the end of the tank, for example with a polymeric material that heats up by absorbing waves. So preferential, this material is sandwiched between two walls to protect it from direct attack by waves.
- Figure 5 there is shown the part having a narrowing of section of a metal tank 1 b which has a thickness of a polymer 25 in a recess made on its inner face, in the vicinity of its opening 4 b .
- the polymer is covered with a thin metallic layer 24 of a few hundred micrometers which is intended to protect said polymer direct aggression of the waves.
- the waves are partially absorbed by the polymer which heats up and thus raises the water temperature.
- This heating by acting on the surface tension of the water and on its saturated vapor pressure, creates a compromise on its parameters favorable to spraying and further increases the yield of the device.
- Each tank is filled with water.
- the pump 9 discharges water through the conduit 10, so that a first jet of water gushes at the opening of the tank 1b and a second jet of water flows at the opening from tank 1 a .
- water jets of circular section are obtained, in the form of a daisy or a ring.
- the shape of the openings 4 a and 4 b is not limited to those shown in the drawing.
- the water is collected by the collection container 6 and returned to circulation by pump 9, via conduit 11.
- Ceramic 5 emits waves in the two tanks, waves which progress in water in planes perpendicular to the longitudinal axis of the tank.
- each tank 1 a , 1 b concentrates the waves substantially in the central part of the corresponding opening 2 2 a , 2 b .
- This concentration of wave energy in the vicinity of the water surface spreads inside the jet, allowing formation a mist of micro-droplets surrounding each jet of water.
- micro-droplets in a preferred mode, have a diameter less than 5 micrometers. They are carried out by the air current created by the fan 7.
- the diameter of the openings 4 a , 4 b is chosen so that the waves are concentrated in the vicinity of the opening in each tank.
- the spraying efficiency is increased by the on the one hand that wave energy is used mainly for spray the water, the water jets already being formed by the pump, otherwise
- the use of a jet assisted by an external pump allows better adjustment of the operating parameters of the device, which allows achieve optimal operation in which the jet protrudes in length the jet which would be created by the only acoustic pressure due to the waves.
- the spray surface is further increased from which water droplets can form.
- the two faces 5 a and 5 b of the transducer 5 are used for spraying, which makes it possible to significantly increase the production of water droplets compared to a device which would comprise only one tank.
- the water tank 8 allows the pump 9 to keep the amount of water circulating in the device, compensating for the volume of water evacuated to the outside by micro-spraying.
- this device whose overall dimensions are about 4 cm in diameter and 10 cm long, can be easily installed in a vehicle.
- the device according to the invention can be installed in the passenger compartment of an automobile with its inclined longitudinal axis 10 degrees from the horizontal, which gives it space vertical of about 5.7 cm which allows for example to accommodate it in the ceiling of the passenger compartment.
- the device according to the invention can also be embedded in an airplane or on a boat where the conditions of stability are not, a priori, not very good.
- the water jet coming out of the lower opening is straight and extends to the bottom of the compartment inferior.
- the humidification volume is increased since the surface area of the water jet is increased.
Landscapes
- Special Spraying Apparatus (AREA)
- Nozzles (AREA)
Description
- la figure 1 est une vue schématique en élévation et en coupe d'un mode de réalisation du dispositif selon l'invention,
- les figures 2 à 4 sont des vues en perspective de variantes de formes d'ouverture d'une cuve du dispositif de la figure 1, et
- la figure 5 est une vue en coupe selon V-V de la figure 2.
Claims (11)
- Dispositif de pulvérisation de liquide comportant une première cuve allongée (1a) fermée à l'une de ses extrémités par une première face libre (5a) d'un transducteur piézoélectrique(5) apte à émettre des ondes dans un liquide remplissant la cuve et ouverte à son extrémité (4a) opposée au transducteur piézoélectrique (5), caractérisé par le fait que le transducteur piézoélectrique comporte une seconde face libre (5b), opposée à sa première face libre (5a), et qu'une seconde cuve allongée (1b) est disposée symétriquement à la première cuve (1a) par rapport au transducteur piézoélectrique (5), la seconde cuve étant fermée à l'une de ses extrémités par ladite seconde face libre (5b) du transducteur piézoélectrique (5), lequel est ainsi apte à émettre également des ondes dans un liquide remplissant la seconde cuve (1b), cette seconde cuve (1b) étant ouverte à son extrémité opposée (4b) au transducteur piézoélectrique.
- Dispositif selon la revendication 1, caractérisé par le fait que les deux cuves (1a,1b) sont aptes à être complètement remplies de liquide.
- Dispositif selon la revendication 2, caractérisé par le fait que les ondes émises par le transducteur piézoélectrique (5) dans chaque cuve (1a,1b) sont concentrées au voisinage de l'ouverture (4a,4b) de chaque cuve, la section transversale de chaque cuve (1a,1b) présentant un rétrécissement progressif (3a,3b) en direction de l'ouverture de la cuve.
- Dispositif selon la revendication 3, caractérisé par le fait que les cuves présentent, dans leur partie présentant un rétrécissement progressif (3a,3b), une forme de paraboloïde de révolution dont le point focal se situe au voisinage de l'ouverture correspondante.
- Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé par le fait que chaque cuve (1a,1b) comporte, au voisinage de son ouverture (4a,4b), des moyens de chauffage (22) permettant d'élever la température du liquide juste avant sa pulvérisation.
- Dispositif selon la revendication 5, caractérisé par le fait que les moyens de chauffage sont constitués par une épaisseur de matériau absorbant l'énergie acoustique des ondes (24), prévue au voisinage de l'ouverture de chaque cuve.
- Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé par le fait qu'il comporte des moyens de ventilation (7) pour créer une circulation d'air au voisinage de la surface du liquide contenu dans chaque cuve (1a,1b).
- Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé par le fait que les parois de chaque cuve (1a,1b) sont réalisées en un matériau dur apte à réfléchir les ondes et sont conformées de manière à concentrer les ondes en un point situé au voisinage de la partie centrale de l'ouverture (4a,4b) de chaque cuve (1a,1b).
- Dispositif selon l'une quelconque des revendications 1 à 8, caractérisé par le fait qu'il comporte un récipient de collecte (4) dans lequel sont placées des cuves (1a,1b), une pompe étant reliée d'une part au récipient de collecte (6), d'autre part à chaque cuve (1a,1b) et étant apte à faire circuler le liquide en permanence entre les cuves (1a,1b) d'où il déborde et le récipient de collecte (6) où il est recueilli, un réservoir de liquide étant également raccordé à la pompe (9) pour maintenir constante la quantité de liquide circulant dans le dispositif.
- Dispositif selon l'une quelconque des revendications 1 à 9, caractérisé par le fait que chaque ouverture (4a,4b) des cuves (1a,1b) présente un diamètre voisin de celui de la fontaine acoustique qui serait naturellement formée par les ondes en l'absence de pompe (9).
- Dispositif selon l'une quelconque des revendications 1 à 10, caractérisé par le fait que des déflecteurs par exemple en forme de calottes sphériques (20a, 20b) sont prévus dans le prolongement de l'ouverture (4a,4b) de chaque cuve (1a,1b) pour retenir les grosses gouttes de liquide qui sont ainsi récupérées dans le récipient de collecte (6).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9600048A FR2743313B1 (fr) | 1996-01-04 | 1996-01-04 | Dispositif de pulverisation a rendement eleve notamment d'eau sous forme de micro-gouttelettes |
FR9600048 | 1996-01-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0782885A1 EP0782885A1 (fr) | 1997-07-09 |
EP0782885B1 true EP0782885B1 (fr) | 2001-10-24 |
Family
ID=9487892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97400008A Expired - Lifetime EP0782885B1 (fr) | 1996-01-04 | 1997-01-03 | Dispositif de pulverisation a rendement éléve notamment d'eau sous forme de micro-gouttelettes |
Country Status (5)
Country | Link |
---|---|
US (1) | US5836515A (fr) |
EP (1) | EP0782885B1 (fr) |
JP (1) | JPH09192555A (fr) |
DE (1) | DE69707511T2 (fr) |
FR (1) | FR2743313B1 (fr) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5938117A (en) * | 1991-04-24 | 1999-08-17 | Aerogen, Inc. | Methods and apparatus for dispensing liquids as an atomized spray |
US5758637A (en) | 1995-08-31 | 1998-06-02 | Aerogen, Inc. | Liquid dispensing apparatus and methods |
GB9825883D0 (en) * | 1998-11-27 | 1999-01-20 | Aea Technology Plc | Formation of monodisperse particles |
FR2787352A1 (fr) | 1998-12-18 | 2000-06-23 | Air Refreshing Control | Dispositif de pulverisation de gouttelettes muni d'un tube d'extraction |
FR2788705A1 (fr) | 1999-01-27 | 2000-07-28 | Air Refreshing Control | Dispositif de pulverisation de gouttelettes anti-croupissement |
FR2788706B1 (fr) | 1999-01-27 | 2001-03-09 | Air Refreshing Control | Dispositif de pulverisation de gouttelettes d'eau et buse pour un tel dispositif |
US6235177B1 (en) | 1999-09-09 | 2001-05-22 | Aerogen, Inc. | Method for the construction of an aperture plate for dispensing liquid droplets |
US7971588B2 (en) | 2000-05-05 | 2011-07-05 | Novartis Ag | Methods and systems for operating an aerosol generator |
US8336545B2 (en) | 2000-05-05 | 2012-12-25 | Novartis Pharma Ag | Methods and systems for operating an aerosol generator |
US7677467B2 (en) | 2002-01-07 | 2010-03-16 | Novartis Pharma Ag | Methods and devices for aerosolizing medicament |
AU2003202925B2 (en) | 2002-01-07 | 2008-12-18 | Aerogen, Inc. | Devices and methods for nebulizing fluids for inhalation |
WO2003059424A1 (fr) | 2002-01-15 | 2003-07-24 | Aerogen, Inc. | Procedes et systemes de fonctionnement d'un generateur d'aerosol |
WO2003097126A2 (fr) | 2002-05-20 | 2003-11-27 | Aerogen, Inc. | Appareil de realisation d'aerosol pour traitement medical et procedes correspondants |
US6854718B1 (en) * | 2003-01-30 | 2005-02-15 | Hwang Sun Enterprise Co., Ltd. | Vaporizer |
US8616195B2 (en) | 2003-07-18 | 2013-12-31 | Novartis Ag | Nebuliser for the production of aerosolized medication |
US7946291B2 (en) | 2004-04-20 | 2011-05-24 | Novartis Ag | Ventilation systems and methods employing aerosol generators |
DE102004024615B4 (de) * | 2004-05-18 | 2008-08-28 | Airbus Deutschland Gmbh | Vorrichtung zur Befeuchtung der Luft in einer Kabine eines Passagier- oder Frachtflugzeugs |
US7775459B2 (en) * | 2004-06-17 | 2010-08-17 | S.C. Johnson & Son, Inc. | Liquid atomizing device with reduced settling of atomized liquid droplets |
AU2006249574B2 (en) | 2005-05-25 | 2012-01-19 | Novartis Ag | Vibration systems and methods |
US7490815B2 (en) * | 2005-11-14 | 2009-02-17 | The Procter & Gamble Company | Delivery system for dispensing volatile materials using an electromechanical transducer in combination with an air disturbance generator |
FR2925894B1 (fr) * | 2007-12-27 | 2009-12-11 | Charles Pallanca | Dispositif de dessalement de l'eau de mer par pulverisation a temperature ambiante |
FR3004971B1 (fr) * | 2013-04-30 | 2015-04-03 | Areco Finances Et Technologie Arfitec | Systeme de nebulisation pour rafraichir l'air |
EP3043927A4 (fr) | 2013-09-09 | 2017-08-30 | Omnimist Ltd. | Appareil de pulvérisation du type atomiseur |
USD759878S1 (en) * | 2014-11-06 | 2016-06-21 | Jodi B. Pessenda | Garden hose light |
FR3029431A1 (fr) | 2014-12-05 | 2016-06-10 | Areco Finances Et Tech - Arfitec | Dispositif de pulverisation compact |
FR3045420B1 (fr) * | 2015-12-17 | 2018-02-02 | Areco Finances Et Technologie - Arfitec | Dispositif de pulverisation a transducteur piezoelectrique, notamment pour vehicule |
FR3058932A1 (fr) * | 2016-08-04 | 2018-05-25 | Valeo Systemes Thermiques | Systeme de nebulation pour vehicule automobile |
FR3064502A1 (fr) | 2017-03-28 | 2018-10-05 | Areco Finances Et Technologie - Arfitec | Dispositif de nebulisation compact, et ensemble de nebulisation comprenant un tel dispositif |
FR3070879B1 (fr) | 2017-09-11 | 2020-06-05 | Areco Finances Et Technologie - Arfitec | Dispositif de generation de gouttelettes a partir d'un liquide comprenant des moyens ameliores de diffusion du brouillard, et son procede de mise en œuvre |
FR3070880B1 (fr) | 2017-09-11 | 2020-07-17 | Areco Finances Et Technologie - Arfitec | Dispositif de generation de gouttelettes a partir d'un liquide comprenant des moyens de ventilation ameliores, et son procede de mise en œuvre |
USD860511S1 (en) * | 2018-07-23 | 2019-09-17 | Jodi Beth Pessenda | Attachable garden nozzle light |
US10744528B2 (en) * | 2018-10-19 | 2020-08-18 | Sichuan University | Adjustable ultrasonic micro-jet nozzle array with minimal quantity lubrication |
CN115342466A (zh) * | 2021-05-13 | 2022-11-15 | 范海良 | 带有超声波定向加湿功能的空气净化器 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4003967A (en) * | 1974-10-31 | 1977-01-18 | Les Placement Courteau Limitee | Electric heating and humidifying apparatus |
JPS53153537U (fr) * | 1977-05-10 | 1978-12-02 | ||
JPS54124550A (en) * | 1978-03-20 | 1979-09-27 | Matsushita Electric Ind Co Ltd | Ultrasonic atomizer |
DE8807489U1 (de) * | 1988-06-09 | 1988-07-28 | Lechler Gmbh & Co Kg, 7012 Fellbach | Ultraschall-Flüssigkeitszerstäuber |
FR2691411B1 (fr) * | 1992-05-19 | 1995-09-08 | Renault | Perfectionnement apporte aux dispositifs de ventilation d'un habitacle de vehicule automobile. |
US5645769A (en) * | 1994-06-17 | 1997-07-08 | Nippondenso Co., Ltd. | Humidified cool wind system for vehicles |
FR2721839B1 (fr) * | 1994-07-04 | 1996-10-25 | Imra Europe Sa | Dispositif de pulverisation, notamment d'eau sous forme de micro-goutelettes, apte a fonctionner dans un milieu non stationnaire |
US5653919A (en) * | 1995-06-23 | 1997-08-05 | Morgan & White, Ltd. | Humidification system |
-
1996
- 1996-01-04 FR FR9600048A patent/FR2743313B1/fr not_active Expired - Fee Related
- 1996-12-27 JP JP8356725A patent/JPH09192555A/ja active Pending
-
1997
- 1997-01-02 US US08/778,362 patent/US5836515A/en not_active Expired - Lifetime
- 1997-01-03 DE DE69707511T patent/DE69707511T2/de not_active Expired - Lifetime
- 1997-01-03 EP EP97400008A patent/EP0782885B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69707511T2 (de) | 2002-07-18 |
US5836515A (en) | 1998-11-17 |
FR2743313B1 (fr) | 1998-02-06 |
FR2743313A1 (fr) | 1997-07-11 |
JPH09192555A (ja) | 1997-07-29 |
DE69707511D1 (de) | 2001-11-29 |
EP0782885A1 (fr) | 1997-07-09 |
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