Abstract: An aerosol-generating device is provided, including a first atomiser assembly including a first mesh element defining a plurality of first nozzles each having a minimum diameter of equal to or less than 2.5 micrometres; a second atomiser assembly including a second mesh element defining a plurality of second nozzles each having a minimum diameter of between 3 micrometres and 10 micrometres; a first device connector configured to receive a first liquid reservoir and to supply a first liquid from the first liquid reservoir to the first atomiser assembly; and a second device connector configured to receive a second liquid reservoir and to supply a second liquid from the second liquid reservoir to the second atomiser assembly.

Abstract: A mesh element for an atomiser assembly is provided, including: a first layer defining at least one channel including a minimum cross-sectional area; and a second layer overlying the first layer and defining at least one nozzle including a maximum cross-sectional area, the second layer including an inner surface facing the first layer and an outer surface facing away from the first layer, the at least one nozzle overlying the at least one channel, and the maximum cross-sectional area of the at least one nozzle being smaller than the minimum cross-sectional area of the at least one channel, and the outer surface of the second layer defining an annular portion extending around the at least one nozzle, the annular portion having a semi-circular cross-sectional shape, and a thickness of the second layer at each annular portion being larger than a thickness of the second layer between adjacent annular portions.

Abstract: A mesh for an atomizer assembly is provided, including a first surface, a second surface, and a plurality of nozzles extending between the first surface and the second surface, the first surface being at least partially coated with a hydrophilic coating or the second surface being at least partially coated with a hydrophobic coating, the plurality of nozzles defining an inner surface, and the inner surface being at least partially coated with the hydrophilic coating. An atomizer assembly for an aerosol-generating device, and an aerosol-generating device comprising an atomizer assembly, are also provided.

Abstract: An aerosol-generating article is provided for producing an inhalable aerosol when heated, the aerosol-generating article including: a hollow cylindrical rod of aerosol-generating substrate; a wrapper circumscribing the hollow cylindrical rod; and a hollow tube extending along a longitudinal axis of the hollow cylindrical rod and defining a central airflow channel of the aerosol-generating article, the hollow tube including a plurality of openings extending through a wall of the hollow tube, such that the aerosol-generating substrate in the hollow cylindrical rod is in fluid communication with the central airflow channel through the plurality of openings, and such that a ratio between a cumulative cross-sectional area of the plurality of openings and a cross-sectional area of the central airflow channel is from about 0.042 to about 0.672.

Abstract: An aerosol-generating article is provided for producing an inhalable aerosol when heated, the aerosol-generating article including: a hollow cylindrical rod of aerosol-generating substrate; a wrapper circumscribing the hollow cylindrical rod; and a hollow tube extending along a longitudinal axis of the hollow cylindrical rod and defining a central airflow channel of the aerosol-generating article, the hollow tube including a plurality of openings extending through a wall of the hollow tube, such that the aerosol-generating substrate in the hollow cylindrical rod is in fluid communication with the central airflow channel through the plurality of openings, and such that a ratio between a cumulative cross-sectional area of the plurality of openings and a cross-sectional area of the central airflow channel is from about 0.042 to about 0.672.

Abstract: An aerosol-generating device is provided, including a first atomiser assembly including a first mesh element defining a plurality of first nozzles each having a minimum diameter of equal to or less than 2.5 micrometres; a second atomiser assembly including a second mesh element defining a plurality of second nozzles each having a minimum diameter of between 3 micrometres and 10 micrometres; a first device connector configured to receive a first liquid reservoir and to supply a first liquid from the first liquid reservoir to the first atomiser assembly; and a second device connector configured to receive a second liquid reservoir and to supply a second liquid from the second liquid reservoir to the second atomiser assembly.

Abstract: An atomiser assembly is provided, including: an oscillation chamber having a cavity containing a liquid to be atomized, a liquid inlet configured to provide a supply of the liquid to be atomized to the cavity, an elastically deformable element, and a mesh element comprising a plurality of nozzles; and an actuator configured to oscillate the elastically deformable element, the oscillation chamber and the liquid being contained in the cavity of the oscillation chamber form an oscillation system, in which oscillation of the elastically deformable element by the actuator varies pressure inside the cavity, and the actuator being further configured to oscillate the elastically deformable element at a resonant frequency of the oscillation system to eject liquid contained in the cavity from the cavity through the plurality of nozzles of the mesh element. An aerosol-generating system, an aerosol-generating device, and a method of operating an atomiser assembly are also provided.

Abstract: A mesh for an atomizer assembly is provided, including a first surface, a second surface, and a plurality of nozzles extending between the first surface and the second surface, the first surface being at least partially coated with a hydrophilic coating or the second surface being at least partially coated with a hydrophobic coating, the plurality of nozzles defining an inner surface, and the inner surface being at least partially coated with the hydrophilic coating. An atomizer assembly for an aerosol-generating device, and an aerosol-generating device comprising an atomizer assembly, are also provided.

Abstract: A mesh element for an atomiser assembly is provided, including: a first layer defining at least one channel including a minimum cross-sectional area; and a second layer overlying the first layer and defining at least one nozzle including a maximum cross-sectional area, the second layer including an inner surface facing the first layer and an outer surface facing away from the first layer, the at least one nozzle overlying the at least one channel, and the maximum cross-sectional area of the at least one nozzle being smaller than the minimum cross-sectional area of the at least one channel, and the outer surface of the second layer defining an annular portion extending around the at least one nozzle, the annular portion having a semi-circular cross-sectional shape, and a thickness of the second layer at each annular portion being larger than a thickness of the second layer between adjacent annular portions.