Liquid atomization process

B - Operations – Transporting – 05 – B

Patent

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Details

B05B 7/06 (2006.01) B05B 7/04 (2006.01) B05B 7/08 (2006.01) F02M 43/04 (2006.01) F02M 67/10 (2006.01) F02M 69/04 (2006.01) F23D 11/10 (2006.01) B05B 1/02 (2006.01)

Patent

CA 2254969

The object of the present invention is a liquid atomization procedure that uses appropriate geometric parameters and physical properties to ensure that the liquid to be atomized is discharged as a continuous, steady capillary microjet through a suitable orifice. The procedure relies on the microwithdrawal effect undergone by a liquid-gas interface when the gas is withdrawn from a point (orifice) near the liquid surface. The invented procedure is applicable to any mechanism involving homogeneous atomization of liquids (particularly electronic fuel injection).

L'objet de la présente invention est un procédé d'atomisation de liquides fondé sur la formation d'un microjet capillaire lorsque l'on inspire un liquide en utilisant un flux de gaz à haute vitesse au travers d'un orifice de petit diamètre. Selon une détermination paramétrique, le liquide aspiré forme un jet capillaire stationnaire de très petit diamètre, accéléré et stabilisé par les efforts tangentiels visqueux exercés par le gaz sur la surface du liquide, ce jet traversant l'orifice et sortant à l'extérieur où finalement il se décompose en microgouttes de taille extrêmement petite et faible dispersité. Le procédé de l'invention s'applique à tous les mécanismes qui nécessitent une atomisation homogène de liquide et en particulier à l'injection électronique de carburant.

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