Abstract: A cartridge assembly for an aerosol-generating system including a housing having an air outlet and an air inlet upstream of the housing air outlet; and a cartridge disposed within the housing. The cartridge includes a fluid-permeable heating element within a cartridge body; a cartridge air inlet; a cartridge air outlet; and an airflow path extending from the cartridge air inlet to the cartridge air outlet, via the fluid-permeable heating element. At least a portion of the cartridge may move between a first position, in which air from the housing air inlet is blocked from flowing to the housing air outlet, via the cartridge air inlet, the fluid-permeable heating element, and the cartridge air outlet; and a second position, in which an unrestricted airflow path exists from the housing air inlet to the housing air outlet, via the cartridge air inlet, the fluid-permeable heating element, and the cartridge air outlet.

Abstract: A cartridge assembly for an aerosol-generating system is provided, including a cartridge, housing, mouthpiece, and linkage. The cartridge includes first and second compartments each having an air inlet and outlet. The housing encloses the cartridge, and includes air inlets, air outlets, and a guide slot. The mouthpiece includes an air inlet in fluid communication with the housing air outlets. The linkage extends through the guide slot and is connected to the cartridge and the mouthpiece. The mouthpiece and the cartridge are rotatable with respect to the housing from a first position to a second position. When the cartridge is in the first position, the housing obstructs the air inlets and outlets of the first and second compartments. When the cartridge is in the second position, the air inlets and outlets of the first and second compartments are in fluid communication with the housing air inlets and outlets respectively.

Abstract: There is provided a cartridge for an aerosol-generating system, the cartridge including: 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 a lactic acid source, a ratio of flow area of the first air inlet to a flow area of the second air inlet being between about 3:4 and about 1:2. There is also provided an aerosol-generating system including the and an aerosol-generating device including a housing defining a cavity configured to receive at least a portion of the cartridge, and a heater configured to heat the first compartment and the second compartment of the cartridge.

Abstract: There is provided an aerosol-generating system including a cartridge including: a first compartment containing a nicotine source, the first compartment having a first air inlet and a first air outlet; and a second compartment containing an acid source, the second compartment having a second air inlet and a second air outlet; and a mouthpiece configured to engage with the cartridge to define a chamber in fluid communication with the first air outlet and the second air outlet, the mouthpiece comprising a third air inlet in fluid communication with the chamber and a third air outlet in fluid communication with the chamber, the third air inlet defining a flow area, and the mouthpiece being configured so that the flow area through the third air inlet is variable.

Abstract: The present invention relates to a process to obtain tobacco flavor extracts, the process comprising: —conditioning a mixture of tobaccos in a primary tobacco manufacture heating the mixture of tobacco to a temperature comprised between about 30 degrees Celsius and about 90 degrees Celsius for a time interval comprised between about 30 seconds and about 1 hour; —recovering emissions produced by the mixture conditioning; and —obtaining at least one flavor extract from the recovered emissions. The present invention also relates to an apparatus to obtain tobacco flavor extracts.

Abstract: A cartridge for an aerosol-generating system is provided, including an elongate first compartment having a length L1, a maximum transverse cross-sectional area A1, a first air inlet, and a first air outlet, and containing a nicotine source including a first carrier material loaded with between about 1 mg and about 50 mg of nicotine; and an elongate second compartment having a length L2, a maximum transverse cross-sectional area A2, a second air inlet, and a second air outlet, and containing an acid source. The first and second compartments are arranged in parallel within the cartridge and the ratio (L1)2:A1 is at least about 12:1 and the ratio (L2)2: A2 is at least about 12:1. An aerosol-generating system is also provided, including the cartridge; an aerosol-generating device including a housing defining a cavity to receive at least a portion of the cartridge; and a heater to heat the first and second compartments.

Abstract: An aerosol-generating system is provided, including a nicotine source, a lactic acid source, and a single heater configured to heat both the nicotine source and the lactic acid source. The aerosol-generating system may also include an aerosol-generating article including a cartridge having a first compartment including the nicotine source and a second compartment including the lactic acid source; and an aerosol-generating device including the single heater. The cartridge may also include a cavity configured to receive the single heater of the aerosol-generating device.

Abstract: An aerosol-generating system is provided, including an aerosol-generating device in cooperation with an aerosol-generating article. The article includes a first sealed compartment having a tubular porous element and a delivery enhancing compound sorbed thereon; and a second compartment having a volatile liquid. The device includes an outer housing adapted to receive the article; an elongate piercing member for piercing the first and second compartments. The elongate piercing member includes a piercing portion adjacent a distal end of the elongate piercing member; a shaft portion; and an obstructing portion adjacent a proximal end of the elongate piercing member. The piercing portion has a maximum diameter greater than the diameter of the shaft portion, and the obstructing portion has an outer diameter such that it fits within the tubular porous element of the article when the article is received in the device. A corresponding aerosol-generating device and aerosol-generating article are also provided.

Abstract: An aerosol-generating system is provided, including a nicotine source; a volatile delivery enhancing compound source downstream of the nicotine source and including an acid; heating means for heating the nicotine source; and a physically separate heat transfer barrier between the nicotine source and the volatile delivery enhancing compound source. The heating means is configured to heat the nicotine source to a temperature of between about 80° C. and about 150° C. The heat transfer barrier is configured so that the temperature of the volatile delivery enhancing compound source is less than about 50° C. when the nicotine source is heated to a temperature of between about 80° C. and about 150° C. by the heating means.

Abstract: An aerosol-generating device is provided, for use in an aerosol-generating system and an aerosol-generating system including an aerosol-generating device and an aerosol-generating article. The aerosol-generating device includes a cavity configured to receive an aerosol-generating article; a first solid-liquid phase-change material positioned about a perimeter of the cavity; and heating means configured to heat the first solid-liquid phase-change material to a temperature above the melting point of the first solid-liquid phase-change material. The aerosol-generating device further includes a second solid-liquid phase-change material, wherein the melting point of the second solid-liquid phase-change material is higher than the melting point of the first solid-liquid phase-change material.

Abstract: A cartridge for an aerosol-generating system includes a storage container containing a supply of an aerosol-forming substrate, a fluid permeable heating element positioned across an opening in the storage container, a protective cover coupled to the storage container and covering the fluid permeable heating element, at least one air inlet, at least one air outlet, and an airflow path from the at least one air inlet to the at least one air outlet. The protective cover is configured such that a portion of the airflow path is between the protective cover and the fluid permeable heating element.

Abstract: A cartridge for an aerosol-generating system is provided, including an elongate first compartment having a length L1, a width W1, and a height H1, the first compartment having a first air inlet and a first air outlet and containing a nicotine source; and an elongate second compartment having a length L2, a width W2, and a height H2, and having a second air inlet and a second air outlet and containing an acid source. The first and second compartments are arranged in parallel within the cartridge and ratios of L1 to W1 and L2 to W2 are between about 2:1 and about 4:1, and ratios of L1 to H1 and L2 to H2 are at least about 6:1. An aerosol-generating system is also provided, including the cartridge; and an aerosol-generating device including a housing defining a cavity configured to receive at least a portion of the cartridge.

Abstract: A heater assembly for an aerosol-generating system is provided, including a heater element; a reservoir including aerosol-generating liquid; and a condenser configured to condense excess vapors generated in the heater assembly, such that condensate is at least partially conveyed back into the reservoir. A method of manufacturing a heater assembly for an aerosol-generating system is also provided.

Abstract: A cartridge for an aerosol-generating system may comprise a liquid storage portion, which includes a housing holding a liquid aerosol-forming substrate. The housing has a first and a second opening. The cartridge may further comprise a first and a second permeable planar heater assembly, wherein the first permeable planar heater assembly is fixed to the housing and extends across the first opening of the housing, and the second permeable planar heater assembly is fixed to the housing and extends across the second opening of the housing. The first and second permeable planar heater assemblies are arranged opposite each other such that they face each other and form an airflow channel in between.

Abstract: There is provided an aerosol-generating system including an aerosol-generating device in cooperation with an aerosol-generating article. The aerosol-generating article includes a first compartment including a volatile liquid; and a second compartment including a delivery enhancing compound. The aerosol-generating device includes an outer housing configured to receive the aerosol-generating article; a power supply; a heater, configured to receive power from the power supply and arranged to heat the first compartment when the aerosol-generating article is received in the outer housing; an input, configured to receive an input from a user; and a controller, configured to control an amount of power supplied to the heater in dependence on a user input, such that a quantity of volatile liquid aerosolised is determined by the user input.

Abstract: An aerosol-generating system is provided, including a nicotine source; a volatile delivery enhancing compound source downstream of the nicotine source and including an acid; heating means for heating the nicotine source; and a physically separate heat transfer barrier between the nicotine source and the volatile delivery enhancing compound source. The heating means is configured to heat the nicotine source to a temperature of between about 80° C. and about 150° C. The heat transfer barrier is configured so that the temperature of the volatile delivery enhancing compound source is less than about 50° C. when the nicotine source is heated to a temperature of between about 80° C. and about 150° C. by the heating means.

Abstract: An aerosol-generating system is provided, including an aerosol-generating device in cooperation with an aerosol-generating article. The article includes a first sealed compartment having a tubular porous element and a delivery enhancing compound sorbed thereon; and a second compartment having a volatile liquid. The device includes an outer housing adapted to receive the article; an elongate piercing member for piercing the first and second compartments. The elongate piercing member includes a piercing portion adjacent a distal end of the elongate piercing member; a shaft portion; and an obstructing portion adjacent a proximal end of the elongate piercing member. The piercing portion has a maximum diameter greater than the diameter of the shaft portion, and the obstructing portion has an outer diameter such that it fits within the tubular porous element of the article when the article is received in the device. A corresponding aerosol-generating device and aerosol-generating article are also provided.

Abstract: An aerosol-generating device is provided, for use in an aerosol-generating system and an aerosol-generating system including an aerosol-generating device and an aerosol-generating article. The aerosol-generating device includes a cavity configured to receive an aerosol-generating article; a first solid-liquid phase-change material positioned about a perimeter of the cavity; and heating means configured to heat the first solid-liquid phase-change material to a temperature above the melting point of the first solid-liquid phase-change material. The aerosol-generating device further includes a second solid-liquid phase-change material, wherein the melting point of the second solid-liquid phase-change material is higher than the melting point of the first solid-liquid phase-change material.