Abstract: An aerosol-generating device is provided, including an air inlet and outlet; an air flow passage extending between the inlet and the outlet; a heating element to heat an aerosol-forming substrate; a sensor assembly in communication with the passage to measure one or both of a flow rate and a pressure level within the air flow passage; and a controller coupled to the sensor assembly to control a supply of power to the heating element, receive data from the sensor assembly and record when a user puffs on the device, and assign a puff number to each puff recorded by the controller, an amount of power supplied for a given puff being dependent on the puff number of the given puff, and the device being configured such that the puff number resets to zero after a predefined amount of time has passed since a certain numbered puff occurred.

Abstract: An aerosol-generating device includes a housing having a first end defining a mouthpiece, a second end, and a cavity defined between the first end and the second end. The device also includes a reservoir within the cavity. The reservoir is configured to store a liquid aerosol-forming substrate. The device also includes an atomizer and a valve within the mouthpiece of the housing. The valve has a first side and an second side. The second side of the valve includes a hydrophilic coating, a hydrophobic coating, or both a hydrophilic coating and a hydrophobic coating.

Abstract: A cartridge for an aerosol-generating system is provided, the cartridge containing a nicotine source including a liquid nicotine formulation, the liquid nicotine formulation including glycerine in an amount of at least 10 percent by weight and nicotine, in which a ratio by weight of nicotine to glycerine in the liquid nicotine formulation is between about 3:2 and about 9:1. An aerosol-generating system is also provided, including: the cartridge; and an aerosol-generating device including a housing defining a device cavity configured to receive at least a portion of the cartridge, and a heating element configured to heat the cartridge.

Abstract: An inductive heating assembly is configured to inductively heat an aerosol-forming substrate to a pre-determined operating temperature, the heating assembly including an induction source configured to generate an alternating electromagnetic field; and a susceptor assembly configured to inductively heat the aerosol-forming substrate under influence of the alternating magnetic field generated by the induction source, the susceptor assembly including a first susceptor including a first susceptor material and a second susceptor including a second susceptor material having a Curie temperature at least 50 degrees Celsius below an operating temperature of the heating assembly. An aerosol-generating device and an aerosol-generating system include the inductive heating assembly.

Abstract: A heater assembly for an aerosol-generating system is provided, the heater assembly including: a fluid-permeable heating element configured to vaporise a liquid aerosol-forming substrate; and a transport material configured to transport liquid aerosol-forming substrate to the fluid-permeable heating element, the transport material having a thickness defined between a first surface of the transport material and an opposing second surface of the transport material, the first surface being arranged in fluid communication with the fluid-permeable heating element and the second surface being arranged to receive liquid aerosol-forming substrate, the second surface of the transport material being provided with at least one hole that extends into the transport material to a depth corresponding to at least a part of the thickness of the transport material to define a formed fluid channel for the liquid aerosol-forming substrate, and the first surface of the transport material being convex.

Abstract: An aerosol-generating device includes a housing having a first end defining a mouthpiece, a second end, and a cavity defined between the first end and the second end. The device also includes a reservoir within the cavity. The reservoir is configured to store a liquid aerosol-forming substrate. The device also includes an atomizer and a valve within the mouthpiece of the housing. The valve has a first side and an second side. The second side of the valve includes a hydrophilic coating, a hydrophobic coating, or both a hydrophilic coating and a hydrophobic coating.

Abstract: There is described an aerosol-forming substrate for use in combination with an inductive heating device. The aerosol-forming substrate comprises a solid material which is capable of releasing volatile compounds that can form an aerosol upon heating of the aerosol-forming substrate and at least a first susceptor material for heating the aerosol-forming substrate. The at least first susceptor material is arranged in thermal proximity of the solid material. The aerosol-forming substrate further comprises at least a second susceptor material which has a second Curie-temperature which is lower than a first Curie-temperature of the first susceptor material. The second Curie-temperature of the second susceptor material corresponds to a predefined maximum heating temperature of the first susceptor material. There is also described an aerosol-delivery system.

Abstract: There is provided an inductive heating assembly to inductively heat an aerosol-forming substrate to an operating temperature, the assembly including an induction source connected to a DC power supply to generate an alternating electromagnetic field to inductively heat a susceptor assembly including a first susceptor and a second susceptor having a Curie temperature below the operating temperature, and a controller operatively connected to the induction source and the DC power supply, to determine an actual apparent resistance of the susceptor assembly indicative of the actual temperature of the susceptor assembly, to determine a minimum value of the apparent resistance occurring during pre-heating of the susceptor assembly, and to control operation of the induction source such that the actual apparent resistance corresponds to the determined minimum value of the apparent resistance plus a pre-determined offset value of the apparent resistance to control heating of the substrate to the operating temperature.

Abstract: An aerosol-generating system is provided, including: a cartridge containing a volatile substrate and having a susceptor; and an aerosol-generating device configured to receive the cartridge, the aerosol-generating device including: a housing having a chamber sized to receive at least a portion of the cartridge, an inductor coil disposed around at least a portion of the chamber, a power supply, an ambient temperature sensor, and control circuitry configured to control a supply of power from the power supply to the inductor coil based on one or more ambient temperature readings from the ambient temperature sensor. An aerosol-generating device and a method of controlling inductive heating in an aerosol-generating system are also provided.

Abstract: An aerosol-generating article is provided, including: an aerosol-forming substrate; and a susceptor configured to heat the aerosol-forming substrate, the susceptor including a first susceptor material and a second susceptor material being different from the first susceptor material, the second susceptor material being plated, deposited, or welded onto the first susceptor material, the susceptor being an elongate susceptor having a length dimension that is greater than a width dimension thereof or than a thickness dimension thereof, and the second susceptor material having a Curie temperature that is lower than 500° C. An aerosol-generating system is also provided, including: an electrically-operated aerosol-generating device having an inductor configured to produce an alternating magnetic field, and the aerosol-generating article. A method of using the aerosol-generating article is also provided.

Abstract: A fluid permeable heater assembly for an aerosol-generating system includes a cap and a substantially flat electrically conductive and fluid permeable heating element. The cap includes a hollow body with a first cap opening and a second cap opening. The first cap opening is opposite to the second cap opening. The heating element is configured to vaporise aerosol-forming substrate. The heating element is mounted on the cap, such that the heating element extends across the first cap opening. A cartridge for an aerosol-generating system includes the heater assembly, a liquid storage portion, a mouth piece, and a retainer.

Abstract: There is provided a cartridge (100) for use in an aerosol-generating system (10) for the generation of an aerosol comprising nicotine salt particles. The cartridge (100) comprises a first compartment (110) containing a nicotine source (210) comprising a first carrier material (211) impregnated with nicotine, the first compartment (110) having a first air inlet (132) and a first air outlet (133). The first compartment (110) defines a first airflow path (217) extending across a first surface (213) of the first carrier material (211) between the first air inlet (132) and the first air outlet (133). The first compartment (110) has a width (115) in a direction perpendicular to the first airflow path (217). The cartridge (100) also comprises a second compartment (120) containing an acid source (220) comprising a second carrier material (221) impregnated with an acid, the second compartment (120) having a second air inlet (134) and a second air outlet (135).

Abstract: A cartridge for an aerosol-generating system is provided, the cartridge including: a liquid storage portion configured to hold a liquid aerosol-forming substrate; and a heater assembly including an electrical heating element configured to heat the liquid aerosol-forming substrate to form an aerosol, a capillary body configured to convey the liquid aerosol-forming substrate to the electrical heating element, the electrical heating element being disposed at a porous end surface of the capillary body, and electrical contacts connected to the electrical heating element, each electrical contact being disposed at opposite sides of the porous end surface, such that the electrical heating element extends between the electrical contacts and forms an electrical connection therebetween. An aerosol-generating system including an aerosol-generating device and the cartridge is also provided.

Abstract: A heater assembly for an aerosol-generating system is provided, including: a fluid-permeable heating element to vaporise a liquid aerosol-forming substrate; and a transport material to transport the substrate to the heating element and having a thickness defined between a first surface and an opposing second surface thereof, the first surface being in fluid communication with the element and the second surface being arranged to receive the substrate and provided with at least one hole extending into the material to a depth corresponding to at least a part of the thickness to define a formed fluid channel for the substrate, the material including a capillary material having elongate fibres, an average direction of the fibres is substantially parallel to the first and second surfaces, and the hole extends substantially perpendicular to the average direction. A method of manufacturing a heater assembly, a cartridge, and an aerosol-generating system are also provided.

Abstract: This disclosure relates to nicotine powder inhalers where the nicotine powder is delivered at air flow rates that mimic a smoking regime.

Abstract: An inductively heatable susceptor for use with an inductively heated aerosol-generating device or system includes an open-porous inductively heatable ceramic material configured to hold an aerosol-forming liquid and configured to heat the aerosol-forming liquid under the influence of an alternating electromagnetic field. A cartridge for use with an aerosol-generating device includes an aerosol-forming liquid and a susceptor. An aerosol-generating device includes a susceptor.

Abstract: There is described an aerosol-forming substrate for use in combination with an inductive heating device. The aerosol-forming substrate comprises a solid material which is capable of releasing volatile compounds that can form an aerosol upon heating of the aerosol-forming substrate and at least a first susceptor material for heating the aerosol-forming substrate. The at least first susceptor material is arranged in thermal proximity of the solid material. The aerosol-forming substrate further comprises at least a second susceptor material which has a second Curie-temperature which is lower than a first Curie-temperature of the first susceptor material. The second Curie-temperature of the second susceptor material corresponds to a predefined maximum heating temperature of the first susceptor material. There is also described an aerosol-delivery system.

Abstract: An aerosol-generating article is provided, including: a plurality of elements assembled within a wrapper in the form of a rod having a mouth end and a distal end upstream from the mouth end, the plurality of elements including an aerosol-forming substrate disposed at or towards the distal end of the rod; and a susceptor configured to heat the aerosol-forming substrate, the susceptor including a first susceptor material and a second susceptor material being different from the first susceptor material, the second susceptor material being plated, deposited, or welded onto the first susceptor material, the susceptor being an elongate susceptor having a length dimension that is greater than a width dimension thereof or than a thickness dimension thereof, the susceptor being disposed in a radially central position within the aerosol-forming substrate, and the second susceptor material having a Curie temperature that is lower than 500° C.

Abstract: A fluid permeable heater assembly for an aerosol-generating system includes a cap and a substantially flat electrically conductive and fluid permeable heating element. The cap includes a hollow body with a first cap opening and a second cap opening. The first cap opening is opposite to the second cap opening. The heating element is configured to vaporise aerosol-forming substrate. The heating element is mounted on the cap, such that the heating element extends across the first cap opening. A cartridge for an aerosol-generating system includes the heater assembly, a liquid storage portion, a mouth piece, and a retainer.

Abstract: An electrically heatable aerosol-generating system is provided, including an aerosol-generating device and a cartridge configured to be used with the aerosol-generating device, the aerosol-generating device including: a device housing, an inductor coil, and a power supply connected to the inductor coil and configured to provide a high-frequency oscillating current to the inductor coil; and the cartridge including: a cartridge housing configured to engage the device housing and containing an aerosol-forming substrate, the cartridge housing having an external surface surrounding the aerosol-forming substrate, and a fluid-permeable susceptor element. A cartridge for an electrically heatable aerosol-generating system is also provided.