Abstract: A cartridge for an aerosol-generating system is provided, the cartridge including: a first compartment containing an alkaloid source, the alkaloid source including a liquid alkaloid formulation having a polyhydric alcohol content of at least about 10 percent by weight and an alkaloid content of at least about 10 percent by weight; and a second compartment containing an acid source. 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 first compartment and the second compartment of the cartridge.

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 canier material (211) defines a first airflow channel (215) extending through the first canier material (211). The first airflow channel (215) defines a first airflow path (217) extending along the first airflow channel (215) between the first air inlet (132) and the first air outlet (133). The first airflow channel (215) has a cross-sectional area (219) perpendicular to the first airflow path (217).

Abstract: There is provided aerosol-generating system (200) comprising a cartridge (100). The cartridge comprises a heater assembly comprising at least four individually activatable heating elements (116, 118 . . . 140) arranged in an array. There is an aerosol-forming substrate on each of the heating elements. The system also comprises an aerosol-generating device (201) configured to engage the cartridge. The aerosol-generating device comprises a power supply (206) and control circuitry (212). The control circuitry is configured to control a supply of power from the power supply to each of the heating elements to generate an aerosol. The control circuitry is configured to activate the heating elements sequentially such that no two spatially adjacent heating elements are activated consecutively.

Abstract: A cartridge for an aerosol-generating system is provided, including a first compartment containing a nicotine source and having a first air inlet and first air outlet, the inlet being upstream of the outlet; a second compartment containing an acid source and having a second air inlet and second air outlet, the inlet being upstream of the outlet; a mixing chamber for mixing nicotine from the nicotine source and acid from the acid source with an air flow to form an aerosol, the mixing chamber being downstream of both the first air outlet and the second air outlet; and a heating element configured to heat the mixing chamber, at least a portion of the heating element being neither upstream nor downstream of the mixing chamber. An aerosol-generating system and a method for aerosol generation in an aerosol-generating system are also provided.

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 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 (220) having a second air inlet (134) and a second air outlet (135).

Abstract: A reclosable cartridge assembly (10) for use in an aerosol-generating system comprises: a cartridge (12) extending longitudinally between end walls (22, 26); a housing (30, 32) enclosing the cartridge (12) and comprising: an upstream portion with an end wall (22) comprising an opening (42); and a downstream housing portion (32) with an end wall comprising an opening (44). One of the housing portions (30, 32) is rotatably fitted onto the cartridge (12). One of the cartridge end walls (22, 26) comprises a rupturable portion (38, 40) separable from the remainder of the end wall to expose an opening (42, 44) in the end wall. The rotatable housing portion (30, 32) is adapted to engage the rupturable portion (38, 40) such that, upon rotation from a storage position to a dispensing position, the housing portion (30, 32) breaks off the rupturable portion (38, 40) and exposes the opening (42, 44) in the end wall.

Abstract: A cartridge for use in an aerosol-generating system, the cartridge comprising: a first compartment having a first air inlet and a first air outlet, the first compartment containing a nicotine source; and a second compartment having a second air inlet and a second air outlet, the second compartment containing an acid source; wherein the first compartment comprises a first air flow channel extending from the first air inlet, or the first air outlet, longitudinally along at least a portion of the first compartment, wherein the first air flow channel is adjacent to and in fluid communication with the nicotine source; or wherein the second compartment comprises a second air flow channel extending from the second air inlet, or the second air outlet, longitudinally along at least a portion of the second compartment, wherein the second air flow channel is adjacent to and in fluid communication with the acid source; or wherein the first compartment comprises a first air flow channel extending from the first air inlet,

Abstract: An aerosol-generating device is provided, including: a housing defining a chamber configured to receive at least one susceptor and at least one aerosol-forming substrate, the chamber having a length along a longitudinal axis thereof extending from a first end of the chamber to a second end of the chamber; and an inductor coil provided within the housing, disposed around the chamber, and extending along at least a portion of the length of the chamber, the inductor coil including a first portion disposed closest to the first end of the chamber, a second portion disposed closest to the second end of the chamber, and a third portion disposed between the first and the second portions, and a number of turns per unit length in the third portion is less than a number of turns per unit length in one or both of the first and the second portions.

Abstract: There is provided a cartridge assembly (10) for use in an aerosol-generating system, the cartridge assembly comprising: a cartridge (12) comprising at least a first compartment (18) extending along a longitudinal axis, the first compartment comprising an aerosol-generating compound and being sealed at a first end by a first frangible barrier (22) extending in respective planes transverse to the longitudinal axis; and at least a first piercing member (38) configured to rupture the first frangible barrier (22). The first piercing member (38) comprises: a first piercing body (40) having a cross-sectional surface area at least about 40 percent of a cross-sectional area of the at least one compartment (19); and a first channel (381, 382) extending parallel to the longitudinal axis of the cartridge through the first piercing body (40), the first channel (381, 382) having an inlet and an outlet.

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: A cartridge (1) for an aerosol generating device, comprising a first cavity (13) containing a nicotine source and a second cavity (14) containing a lactic acid source, the first cavity and the second cavity defining an inner space between the cavities and an outer periphery of the cavities; and a susceptor comprising one or more susceptor elements, wherein the susceptor is arranged such that the susceptor is partly positioned in the inner space (16) between the cavities, and partly positioned in the outer periphery of the cavities, the outer periphery of the cavities being a space between the cavity walls and the cartridge walls.

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 system is provided, including: a cartridge assembly including a cartridge having an upstream end and a downstream end, and a ventilation air inlet positioned downstream of the cartridge; and an aerosol-generating device including a housing defining a device cavity configured to receive an upstream end of the cartridge assembly, an electric heater configured to heat the cartridge when the cartridge assembly is received within the device cavity, a power supply, and a controller configured to control a supply of electrical power from the power supply to the electric heater, the system being configured so that, when the upstream end of the cartridge assembly is received within the device cavity, the ventilation air inlet is positioned within the device cavity and a portion of an internal surface of the device cavity overlying the ventilation air inlet is spaced apart from the cartridge assembly.

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.