Patent ID: 9156044
Filing Date: 2015-10-13
Classification: B05B

Abstract:
1. An aerosol generating device for generating and mixing particles having a diameter of 5 μm or less into air; said device comprising: a cylindrical container, having a bottom connected circumvolvingly to a wall which connects said bottom with a top edge to define a container chamber and an open top; and at least one ejector atomizer positioned within said container chamber, said ejector atomizer having-an internal wall which defines an internal mixing chamber and an outlet opening having a diameter, said internal mixing chamber configured to receive a liquid to be atomized from a liquid supply branch pipe through a liquid supply branch pipe opening, and to permit mixing of that liquid with pressurized air delivered to the mixing chamber from an air supply branch pipe through an air supply branch pipe opening positioned coaxially to the mixing chamber, each of said liquid supply branch opening, said outlet opening and said air supply branch opening having a diameter, said air supply branch pipe opening positioned to as to deliver air tangentially with respect to said internal wall; the ratio of the values of the cross-sections of the branch pipe openings of air and liquid and the outlet opening of the ejector nozzle is described by the equation Do=(0.5÷0.7)D the ejector atomizer is positioned within the container chamber in such a way so as to direct a jet of an aerosol discharge consisting of liquid particles suspended in air coming out of the outlet opening to be chordwisely oriented with respect to the walls of the cylindrical container, so that the projection of the central axis of the aerosol discharge on the walls of the container chamber does not cross the top edge; whereby aerosols are created and dispersed in a tangential vortical motion which creates, partial dehydration and reduction of the aerosol particles size resulting in the release of fine particles into air.