Present disclosure relates to a heating tube, a replaceable vaporizer assembly and an electronic cigarette having the replaceable vaporizer assembly. In certain embodiments, the electronic cigarette may include an electronic cigarette body, and a replaceable vaporizer assembly. The electronic cigarette body may include a mouthpiece installed in a mouthpiece base, a connector base, a mounting base defining multiple air intake openings, an E-liquid storage tank, and a connector. The mounting base and the connector base are threadedly connected through an internal thread of mounting base and an external thread of connector base to form an air chamber inside the mounting base and connector base. When in operation, outside air enters the air chamber through the multiple air intake openings and is vaporized by the replaceable vaporizer assembly, goes up through multiple air gaps between the mounting base and the connector base, and exits the electronic cigarette body through the mouthpiece.

An aerosol-generating system may include a liquid storage portion configured to hold aerosol-forming substrate, a vaporizer, and a pump. The liquid storage portion includes a movable wall and an outlet. The vaporizer includes a heating element having a structure that at least partially defines an internal passage. The pump may deliver liquid aerosol-forming substrate from the outlet of the liquid storage portion to the internal passage of the heating element. The pump may include a micro stepper motor with a drive shaft that is configured to rotate a particular amount based on performing an individual step, a piston connected to the movable wall, and a lead screw connecting the drive shaft to the piston and configured to translate rotation of the drive shaft into axial movement of the piston and the movable wall. The vaporizer may at least partially vaporize the delivered liquid aerosol-forming substrate.

A composite wick is provided for use in a micro-vaporizer having a fluid reservoir and a heating element. The composite wick comprises a wick body positionable so that its upstream surface is in fluid communication with the fluid reservoir and the downstream surface is disposed in opposition to a surface of the heating element. The wick body comprises at least one base wick structure having a plurality of tortuous passages that collectively provide a capillary effect to draw fluid from the reservoir and transport it toward the downstream surface. The wick body further comprises an active material positioned within the wick body so that vaporizable fluid drawn through the wick body contacts and interacts with the active material. The active material is selected to impart a desired characteristic to the vaporizable fluid.

A composite wick is provided for use in a micro-vaporizer having a fluid reservoir and a heating element. The composite wick comprises a wick body positionable so that its upstream surface is in fluid communication with the fluid reservoir and the downstream surface is disposed in opposition to a surface of the heating element. The wick body comprises at least one base wick structure having a plurality of tortuous passages that collectively provide a capillary effect to draw fluid from the reservoir and transport it toward the downstream surface. The wick body further comprises an active material positioned within the wick body so that vaporizable fluid drawn through the wick body contacts and interacts with the active material. The active material is selected to impart a desired characteristic to the vaporizable fluid.

An electronic cigarette system including a liquid capsule having a reservoir for holding vaporizable material, a holder-facing surface, a vapor pipe with an vapor inlet at the holder-facing surface, an inhalation opening, a liquid exit port arranged at the holder-facing surface, and a capsule holder for removably receiving the liquid capsule. The capsule holder including a capsule accommodating opening, a heating device, and a mesh for being soaked with the vaporizable material. When the liquid capsule and the capsule holder are interconnected to each other, a fluid chamber is formed between an outer surface the capsule accommodating opening and the holder-facing surface and when the liquid capsule and the capsule holder are interconnected to each other, a fluidic connection path is formed from the reservoir to the fluid chamber via the liquid exit port, to reach the inhalation opening.

An electronic cigarette system including a liquid capsule having a reservoir for holding vaporizable material, a holder-facing surface, a vapor pipe with an vapor inlet at the holder-facing surface, an inhalation opening, a liquid exit port arranged at the holder-facing surface, and a capsule holder for removably receiving the liquid capsule. The capsule holder including a capsule accommodating opening, a heating device, and a mesh for being soaked with the vaporizable material. When the liquid capsule and the capsule holder are interconnected to each other, a fluid chamber is formed between an outer surface the capsule accommodating opening and the holder-facing surface and when the liquid capsule and the capsule holder are interconnected to each other, a fluidic connection path is formed from the reservoir to the fluid chamber via the liquid exit port, to reach the inhalation opening.

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 personal vapor inhaling unit is disclosed. An electronic flameless vapor inhaler unit that may simulate a cigarette has a cavity that receives a cartridge in the distal end of the inhaler unit. The cartridge brings a substance to be vaporized in contact with a wick. When the unit is activated, and the user provides suction, the substance to be vaporized is drawn out of the cartridge, through the wick, and is atomized by the wick into a cavity containing a heating element. The heating element vaporizes the atomized substance. The vapors then continue to be pulled by the user through a mouthpiece and mouthpiece cover where they may be inhaled.

A personal vapor inhaling unit is disclosed. An electronic flameless vapor inhaler unit that may simulate a cigarette has a cavity that receives a cartridge in the distal end of the inhaler unit. The cartridge brings a substance to be vaporized in contact with a wick. When the unit is activated, and the user provides suction, the substance to be vaporized is drawn out of the cartridge, through the wick, and is atomized by the wick into a cavity containing a heating element. The heating element vaporizes the atomized substance. The vapors then continue to be pulled by the user through a mouthpiece and mouthpiece cover where they may be inhaled.

An atomization assembly comprises an e-liquid reservoir, a porous body, and a healing element. The e-liquid reservoir comprises an e-liquid storage cavity (b) for storing e-liquid. Used for adsorbing e-liquid in the e-liquid storage cavity, the porous body comprises an e-liquid contract surface, an e-liquid atomization surface and an air inlet surface and it adsorbs the e-liquid in the e-liquid storage cavity by means of the e-liquid contact surface; the air inlet surface is for allowing gas to flow into the porous body and flow into the e-liquid storage cavity by means of the porous body; the distance between the air inlet surface and the e-liquid contact surface is smaller than the distance between the e-liquid atomization surface and the e-liquid contact surface, and at least part of the heating element is in contact with the e-liquid atomization surface so as to atomize the e-liquid on the e-liquid atomization surface.