LIQUID ATOMIZATION METHODS AND DEVICES

    公开(公告)号:IL148743A

    公开(公告)日:2006-10-31

    申请号:IL14874302

    申请日:2002-03-18

    Abstract: The present invention involves controlled atomization of liquids for various applications such as part/droplet seeding for laser-based measurements of flow velocity, temperature, and concentration; flame and a plasma based elemental analysis; nano-powder production; spray drying for generation of small-sized particles; nebulizers in the production of sub-micron size droplets and for atomizing fuel for use in combustion chambers. In these and other atomizer applications the control of droplet and/or particle size is very critical In some applications extremely small droplets are preferred (less than a micron), while in others, droplet diameters on the scale of several microns are required. The present invention has the flexibility of forming droplets within a particular range of diameters, wherein not only the size of the average droplet can be adjusted, but the range of sizes may be adjusted as well. The atomizer (4) itself is in the form of a heated tube (44) having an inlet end (48) and an outlet end (50). As liquid travels through the tube it is heated and upon exiting the tube and entering a reduced pressure area the liquid atomizes to form very fine droplets. By electrically heating the tube by passing a current therethrough, the heating adjustment can be performed on-the-fly allowing size adjustment during operation of the atomizer. Several different embodiments of the atomization device are disclosed.

    Liquid atomization methods and devices

    公开(公告)号:AU777249B2

    公开(公告)日:2004-10-07

    申请号:AU7832200

    申请日:2000-09-21

    Abstract: The present invention involves controlled atomization of liquids for various applications such as part/droplet seeding for laser-based measurements of flow velocity, temperature, and concentration; flame and a plasma based elemental analysis; nano-powder production; spray drying for generation of small-sized particles; nebulizers in the production of sub-micron size droplets and for atomizing fuel for use in combustion chambers. In these and other atomizer applications the control of droplet and/or particle size is very critical In some applications extremely small droplets are preferred (less than a micron), while in others, droplet diameters on the scale of several microns are required. The present invention has the flexibility of forming droplets within a particular range of diameters, wherein not only the size of the average droplet can be adjusted, but the range of sizes may be adjusted as well. The atomizer (4) itself is in the form of a heated tube (44) having an inlet end (48) and an outlet end (50). As liquid travels through the tube it is heated and upon exiting the tube and entering a reduced pressure area the liquid atomizes to form very fine droplets. By electrically heating the tube by passing a current therethrough, the heating adjustment can be performed on-the-fly allowing size adjustment during operation of the atomizer. Several different embodiments of the atomization device are disclosed.

    METODOS Y DISPOSITIVOS DE ATOMIZACION DE LIQUIDOS.

    公开(公告)号:MXPA02002780A

    公开(公告)日:2002-07-22

    申请号:MXPA02002780

    申请日:2000-09-21

    Inventor: MIODRAS OLJACA

    Abstract: La presente invencion se refiere a la atomizacion controlada de liquidos para varias aplicaciones como, por ejemplo, la siembra de particulas/gotas para mediciones basadas en laser de velocidad de flujo, temperatura, y concentracion; analisis elemental basado en flama y plasma; produccion de nano-polvos; secado por rociado para generar particulas pequenas; nebulizadores para la produccion de pequenas gotas de un tamano inferior a la micra y para atomizar combustible para su uso en camaras de combustion. En estas y otras aplicaciones de atomizador, el control del tamano de las gotas y/o particulas es muy critico. En ciertas aplicaciones, se prefieren gotas extremadamente pequenas (menor que una micra), mientras que en otras aplicaciones, se requieren de diametros de gotas en una escala de varias micras. La presente invencion tiene la flexibilidad de formar pequenas gotas dentro de un rango de diametros, en donde no solamente se puede ajustar el tamano promedio de gota, sino que se puede ajustar tambien el rango de tamanos. El atomizador (4) en si tiene la forma de un tubo calentado (44) que tiene un extremo de entrada (48) y un extremo de salida (50). Conforme el liquido se desplaza a traves del tubo, el liquido es calentado y al salir del tubo y al penetrar en un area con presion reducida el liquido es atomizado para formar gotas muy finas. Mediante el calentamiento electrico del tubo a traves del pasaje de una corriente, se puede efectuar rapidamente el ajuste del calentamiento, permitiendo ajustar el tamano de las pequenas gotas durante la operacion del atomizador. Se divulgan varias modalidades diferentes del dispositivo de atomizacion.

    Corrosion-resistant multilayer coatings

    公开(公告)号:AU745998B2

    公开(公告)日:2002-04-11

    申请号:AU3989999

    申请日:1999-05-13

    Abstract: A corrosion-resistant coating for a substrate is described. The corrosion-resistant coating comprises a first distinct layer of a first composition disposed over the substrate, wherein the first distinct layer has a thickness that is not greater than about 10 microns, and a second distinct layer of a second composition disposed over the first distinct layer, wherein the second distinct layer has a thickness that is not greater than about 10 microns and either the first distinct layer or the second distinct layer is corrosion-resistant. Preferably, the thickness of each distinct layer is less than about 1 or 2 microns, more preferably, less than about 0.4 microns. The coating may comprise additional layers. Corrosion-resistant articles, methods of protecting an articles, and methods of depositing corrosion-resistant coatings are also described.

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