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: An inductively heatable aerosol-generating article for an inductively heating aerosol-generating device is provided, the article including: an aerosol-forming rod segment having a cylindrical shape with a constant outer cross-section including an elongate susceptor element and an aerosol-forming substrate surrounding the susceptor element so as to define the cylindrical shape of the rod segment, the susceptor element including at least one narrower portion at each extreme end of the susceptor element, and the narrower portion at each extreme end including a reduced transverse cross-section as compared to one or more portions of the susceptor element along a length extension of the susceptor element including a maximum transverse cross-section of the susceptor element.

Abstract: An aerosol generating system including a housing defining an airflow outlet; a liquid aerosol-forming substrate; an aerosol generator, configured to generate an aerosol from the liquid aerosol-forming substrate; a perforated plate disposed between the aerosol generator and the airflow outlet, the perforated plate defining a plurality of apertures extending through the perforated plate; and an electrode disposed between the aerosol generator and the perforated plate, wherein the perforated plate is electrically conductive, and wherein the electrode and the perforated plate are configured to generate an electrical potential.

Abstract: An aerosol-generating system is provided, including: an aerosol-forming substrate; a first electrode and a second electrode spaced apart from the first electrode; an aerosol-generating device including a power supply, and a controller configured to connect to the first electrode and the second electrode; and a capacitor including the first electrode, the second electrode, and at least a portion of the aerosol-forming substrate, the controller being configured to supply an alternating voltage to the first electrode and the second electrode for dielectrically heating the aerosol-forming substrate, measure or determine an electrical property between the first electrode and the second electrode, and control heating of the aerosol-forming substrate based on the measured or determined electrical property.

Abstract: A vaporiser assembly for an electrically operated aerosol-generating device is provided, including: a substantially planar, fluid-permeable heating element having opposing first and second sides; a liquid transport medium having a first side in contact with the second side of the heating element, a second side opposite to the first side, and a thickness between the first and the second sides of the medium is between 1 mm and 5 mm, the heating element extending over a first area of the first side of the medium; and a liquid supply conduit having a first end in contact with the second side of the medium and extending over only a second area of the second side of the medium, the second area being smaller than the first area, and the medium being configured to transport liquid from the conduit to the first area of the second side of the heating element.

Abstract: An inductive heating arrangement to heat an aerosol-forming substrate is provided, including: a DC power source and power supply electronics including a DC/AC inverter connected to the power source, the inverter including a resonant switching power amplifier with a transistor switch, a transistor switch driver circuit associated with the switch and an LC load network including a capacitor and an inductor to generate an alternating magnetic field, the driver circuit including a tunable oscillator to output a switching signal to the switch having a tunable switching frequency; a current sensor to determine a DC supply current drawn from the power source; and a controller to receive a current signal from the sensor indicative of the supply current and to tune the frequency of the switching signal in response to the received current signal in order to tune the supply current to be in a predetermined range.

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 electrically heatable aerosol-generating device for an aerosol-generating article is provided, the device including a device housing including a receiving cavity within a proximal portion of the device to receive at least a portion of the aerosol-generating article; a separating wall disposed adjacent to a distal end of the cavity, separating the cavity within the proximal portion from a distal portion of the device; at least one electrical heating device configured to heat an aerosol-forming substrate within the article when the article is received in the cavity; and sensing circuitry including a field generator disposed within the distal portion adjacent to the separating wall, the sensing circuitry being configured to measure a change of at least one property of the field generator caused by a presence of an indicator arranged within the article when the article is received in the cavity. An aerosol-generating system is also provided.

Abstract: An aerosol-generating device for generating an aerosol by inductive heating of an aerosol-forming substrate is provided, the device including a device housing including a cavity configured to receive the aerosol-forming substrate; an induction source including an induction coil configured to generate an alternating magnetic field within the cavity, the induction coil being arranged around at least a portion of the cavity; a flux concentrator arranged around the induction coil and configured to distort the alternating magnetic field of the induction source towards the cavity; and a bond layer firmly coupled to a least a portion of the flux concentrator, the bond layer including or consisting of a poly(p-xylylene) polymer. There is also provided an aerosol-generating system including an aerosol-generating device including and an aerosol-generating article for the device, the article including an aerosol-forming substrate to be heated.

Abstract: An aerosol-generating device is provided, including: a housing having a chamber, an induction coil around at least part of the chamber; a heating compartment to receive an aerosol-generating article, being detachably insertable into the chamber, and including a cavity to receive the article; and a heating element arrangeable within and extending into the cavity in a longitudinal direction, configured to penetrate an aerosol-forming substrate included in the article and received in the cavity, the compartment further including a first open end to receive the article, and a second, base end opposite the first open end, the first open end and the base end connected by side surfaces including openings and locking elements, and the chamber including recesses corresponding to the locking elements to facilitate a snap-fit when the compartment is inserted into the chamber, the compartment further including a press button to allow release of the snap-fit connection.

Abstract: An aerosol-generating device is provided, including a storage container containing a liquid aerosol-forming substrate; a heating element spaced from the container for vaporising the substrate to form an aerosol; a transfer element between the container and the heating element to receive and retain the substrate, and to be coupled with the heating element to supply the received substrate to the heating element, at least one of the transfer element and the heating element being movable between a loading position and a heating position, such that when the movable element is in the loading position, the transfer element is in fluid communication with the outlet of the container and/or with the heating element, and such that when the movable element is in the heating position, the transfer element is in fluid communication with the heating element and the heating element is activated to vaporise the substrate retained in the transfer element.

Abstract: A susceptor assembly for inductively heating an aerosol-forming substrate is provided, the susceptor assembly including a multi-layer susceptor tube defining a cavity configured to receive an induction coil inside the multi-layer susceptor tube, the multi-layer susceptor tube includes an inner tubular layer, which includes a first electrically conductive material, and an outer tubular layer surrounding the inner tubular layer, which includes a second electrically conductive material, and an electrical resistivity of the first electrically conductive material is greater than an electrical resistivity of the second electrically conductive material. An inductive heating assembly for inductively heating an aerosol-forming substrate, an aerosol-generating article for an aerosol-generating device, and an aerosol-generating system are also provided.

Abstract: There is provided a cartridge (300) for a handheld aerosol-generating system, comprising: a cartridge body (305) comprising an outer wall (325) and an inner airflow tube (320) within the outer body, wherein the inner airflow tube is spaced from the outer wall; and a reservoir (340) of aerosol-forming substrate between the outer wall and the inner airflow tube; wherein the outer wall and inner airflow tube are connected to one another through one or more ribs (326) extending between the outer wall and inner airflow tube, and wherein the outer wall, inner airflow tube and one or more ribs are integrally moulded. With this arrangement a robust cartridge can be inexpensively and reliably manufactured. The ribs provide mechanical support between the outer wall and the inner airflow tube. The integral moulding of the outer wall, inner airflow tube and one or more ribs can ensure or minimise leakage of liquid from the cartridge.

Abstract: A smoking device for aerosol-generation may comprise a device housing, a surface acoustic wave-atomizer (SAW-atomizer), a supply element, and a control system. The device housing may include a storage portion for an aerosol-forming substrate. The SAW-atomizer may include an atomization region, a first transducer, and/or a second transducer. The first transducer is configured to generate first surface acoustic waves that propagate along a surface of the SAW-atomizer. The supply element is arranged to supply the aerosol-forming substrate from the storage portion to the atomization region of the SAW-atomizer. The control system is configured to operate the SAW-atomizer to atomize the aerosol-forming substrate in the atomization region to generate an aerosol. A cartridge for such a smoking device and a method for generating an aerosol in a smoking system are also provided.

Abstract: An aerosol-generating system is provided, including: an aerosol-generating device, including a housing, a heating chamber defining a heating zone and being sized to receive at least a portion of an aerosol-forming substrate within the heating zone, an induction element disposed around, or adjacent to, the heating zone, a power supply, and a controller connected to the induction element and configured to provide an alternating electric current to the induction element to generate an alternating magnetic field within the heating zone, the induction element being configured to be controlled to sequentially provide a first alternating magnetic field having a first frequency for a first period of time followed by a second alternating magnetic field having a second frequency for a second period of time.

Abstract: An aerosol-generating system includes a liquid-storage portion configured to hold a liquid aerosol-forming substrate, a first electrode, a second electrode, and a control system. The second electrode is spaced from the first electrode. At least a portion of the liquid storage portion is arranged between the first electrode and the second electrode. The control system is configured to measure an electrical quantity between the first electrode and the second electrode, and detect a draw on the aerosol-generating system based on the measured electrical quantity information.

Abstract: A smoking device for aerosol-generation may comprise a device housing, a surface acoustic wave-atomizer (SAW-atomizer), a supply element, and a control system. The device housing may include a storage portion for an aerosol-forming substrate. The SAW-atomizer may include an atomization region, a first transducer, and/or a second transducer. The first transducer is configured to generate first surface acoustic waves that propagate along a surface of the SAW-atomizer. The supply element is arranged to supply the aerosol-forming substrate from the storage portion to the atomization region of the SAW-atomizer. The control system is configured to operate the SAW-atomizer to atomize the aerosol-forming substrate in the atomization region to generate an aerosol. A cartridge for such a smoking device and a method for generating an aerosol in a smoking system are also provided.

Abstract: An aerosol-generating article is provided for an inductively heatable aerosol-generating device, the article including a liquid reservoir to store aerosol-forming liquid; and a liquid-conveying susceptor assembly to convey the aerosol-forming liquid into a region outside the liquid reservoir and for inductively heating the aerosol-forming liquid under an influence of an alternating magnetic field to generate an aerosol, the assembly including a filament bundle of inductively heatable filaments including first and second soaking sections and an intermediate section therebetween, the soaking sections being arranged at least partially in the liquid reservoir and the intermediate section being arranged outside the liquid reservoir, the filaments being parallel to each other along the intermediate section, and the soaking sections differing from each other in at least one of a number of fibers therein, a surface property of the filaments therein, or a length thereof

Abstract: A liquid-conveying susceptor assembly is provided for conveying and inductively heating an aerosol-forming liquid under an influence of an alternating magnetic field, the assembly including: an array of inductively heatable longitudinal filaments arranged side by side; and an array of transverse filaments arranged side by side and crossing the longitudinal filaments transverse to a length extension of the longitudinal filaments, in which the transverse filaments only extend along a length portion of the longitudinal filaments such that the assembly further includes at least one grid portion and at least one non-grid portion, in which in the grid portion the transverse filaments and the longitudinal filaments cross each other, in which in the non-grid portion the assembly only includes the longitudinal filaments, but no transverse filaments, and in which length dimension of the non-grid portion is at least 20 percent of a length dimension of the longitudinal filaments.