A cartridge for an e-vaping device includes a reservoir configured to hold a pre-vapor formulation and a channel structure that includes a channel surface with one or more open-microchannels. An open-microchannel in the channel structure may be in fluid communication with the reservoir and may transport pre-vapor formulation from the reservoir to a heating element based on capillary action of the pre-vapor formulation through the open-microchannels. The heating element may vaporize the pre-vapor formulation drawn through one or more open-microchannels. The cartridge may be independent of fibrous dispensing interfaces, including one or more wicks. Fabrication of such a cartridge may be simplified, faster, cheaper, some combination thereof, or the like relative to fabrication of a cartridge that includes a fibrous or soft dispensing interface to draw pre-vapor formulation from a reservoir to a heating element.

A cartridge for an e-vaping device includes a reservoir configured to hold a pre-vapor formulation and a channel structure that includes a channel surface with one or more open-microchannels. An open-microchannel in the channel structure may be in fluid communication with the reservoir and may transport pre-vapor formulation from the reservoir to a heating element based on capillary action of the pre-vapor formulation through the open-microchannels. The heating element may vaporize the pre-vapor formulation drawn through one or more open-microchannels. The cartridge may be independent of fibrous dispensing interfaces, including one or more wicks. Fabrication of such a cartridge may be simplified, faster, cheaper, some combination thereof, or the like relative to fabrication of a cartridge that includes a fibrous or soft dispensing interface to draw pre-vapor formulation from a reservoir to a heating element.

A portable liquid vaporizer (1) comprises a reservoir (10) for holding a liquid to be vaporized; a heater (12) for vaporizing the liquid; a mouthpiece (3) for withdrawing the vapor; and an air path (30) extending through the vaporizer (1), comprising a heating section (31) and a cooling section (32), wherein the heating section (31) extends along the heater (12) and the cooling section (32) extends directly downstream from the heater (12) to the mouthpiece (3).

A portable liquid vaporizer (1) comprises a reservoir (10) for holding a liquid to be vaporized; a heater (12) for vaporizing the liquid; a mouthpiece (3) for withdrawing the vapor; and an air path (30) extending through the vaporizer (1), comprising a heating section (31) and a cooling section (32), wherein the heating section (31) extends along the heater (12) and the cooling section (32) extends directly downstream from the heater (12) to the mouthpiece (3).

A formulation for an aerosol-generating system is provided, the formulation including: one or more aerosol formers; and one or more polymers selected from the group consisting of: polyvinyl acetate, polyvinyl alcohol, polyethylene glycol, polyglycolic acid, polylactic acid, polydioxanone, polycaprolactone, polyethylene, polypropylene glycol, and starch, in which the formulation has a melting point of between 100 degrees Celsius and 300 degrees Celsius. An aerosol-generating article for the aerosol-generating system, and an aerosol-generating system, are also provided.

A formulation for an aerosol-generating system is provided, the formulation including: one or more aerosol formers; and one or more polymers selected from the group consisting of: polyvinyl acetate, polyvinyl alcohol, polyethylene glycol, polyglycolic acid, polylactic acid, polydioxanone, polycaprolactone, polyethylene, polypropylene glycol, and starch, in which the formulation has a melting point of between 100 degrees Celsius and 300 degrees Celsius. An aerosol-generating article for the aerosol-generating system, and an aerosol-generating system, are also provided.

A component for a non-combustible aerosol provision system. The component comprises a body defining an enclosed volume, the body comprising an inlet aperture and an outlet aperture, and an air flow path defined between the inlet aperture and the outlet aperture through the enclosed volume. The body includes a support element comprising an arrangement of alternating ridges and grooves. Also disclosed is a system comprising such a component.

A component for a non-combustible aerosol provision system. The component comprises a body defining an enclosed volume, the body comprising an inlet aperture and an outlet aperture, and an air flow path defined between the inlet aperture and the outlet aperture through the enclosed volume. The body includes a support element comprising an arrangement of alternating ridges and grooves. Also disclosed is a system comprising such a component.

An aerosol provision system for generating aerosol for user inhalation is disclosed. The aerosol provision system comprises a replaceable part comprising a substrate providing aerosol generating material for generating the aerosol for user inhalation and a reusable part comprising: a housing including an interface configured to operatively engage with the replaceable part, and an air channel configured at least partially in the housing to provide a passage of air drawn by user inhalation to receive the aerosol generated from the aerosol generating material, a detector configured to detect the passage of air drawn through the air channel; at least one aerosol generating element disposed with respect to the interface and configured, in use, to generate aerosol from the aerosol generating material, and a control circuit configured to receive a signal from the detector indicating an amount of air drawn by the user and to control the at least one aerosol generating element to generate the aerosol selectively from different regions of the aerosol generating material in response to the amount of air drawn through the air channel.

An aerosol provision system for generating aerosol for user inhalation is disclosed. The aerosol provision system comprises a replaceable part comprising a substrate providing aerosol generating material for generating the aerosol for user inhalation and a reusable part comprising: a housing including an interface configured to operatively engage with the replaceable part, and an air channel configured at least partially in the housing to provide a passage of air drawn by user inhalation to receive the aerosol generated from the aerosol generating material, a detector configured to detect the passage of air drawn through the air channel; at least one aerosol generating element disposed with respect to the interface and configured, in use, to generate aerosol from the aerosol generating material, and a control circuit configured to receive a signal from the detector indicating an amount of air drawn by the user and to control the at least one aerosol generating element to generate the aerosol selectively from different regions of the aerosol generating material in response to the amount of air drawn through the air channel.