An aerosol-generating system including a liquid storage portion is provided, the portion including a rigid housing holding a liquid aerosol-forming substrate, the housing having an opening and a fluid permeable heater assembly including a plurality of electrically conductive filaments, wherein the fluid permeable heater assembly is fixed to the housing and extends across the opening of the housing. The provided heater assembly that extends across an opening of a liquid storage portion allows for a robust construction that is relatively simple to manufacture and allows for a large contact area between the heater assembly and liquid aerosol-forming substrate. The heater assembly may be substantially flat, allowing for simple manufacture.

An aerosol-generating device may include a housing having flexible portion along its length. The flexible portion is configured to transition between a relaxed or unloaded configuration and a flexed or deflected configuration. A flexible heating element and mouthpiece may also be disposed in the housing. When the housing is in a relaxed or unloaded configuration, the flexible heating element and the mouthpiece are at least partially longitudinally aligned with the flexible portion of the housing.

A vaporizer includes an atomizer, a vaporizer body, and a heating portion. The heating portion includes an inner heater block and an inner heater. An inner tube is made of a heat-resistant glass and has an outer diameter smaller than an inner diameter of the hollow vaporizer body. The inner heater block includes division pieces obtained by dividing the inner heater block along a center axis thereof and an elastic material. The elastic material is disposed between the division pieces and acts so as to press and urge the division pieces in separation directions and press them against an inner peripheral surface of the inner tube. The inner heater is embedded in each division piece.

A cartridge for an aerosol-generating system is provided, including a liquid storage portion including a housing containing a liquid aerosol-forming substrate, the housing having an open end; and a heater assembly including: an electrical heating element configured to heat the substrate to form an aerosol, the heating element including a planar filament arrangement having one or more electrically conductive filaments, an electrically insulating substrate having a planar attachment face, the filament arrangement disposed on the planar attachment face, and clamping elements mechanically fixing the filament arrangement to the electrically insulating substrate and applying a pulling force onto the filament arrangement, at least a portion of the heater assembly being fluid-permeable, and the heater assembly being arranged over the open end of the housing.

A vaporization device includes: an air inlet; an air outlet; a vaporization cavity in communication with the air inlet and the air outlet, a vaporization assembly being arranged in the vaporization cavity; and a first capillary liquid absorbing structure arranged on a part of the inner wall of the vaporization cavity close to the vaporization assembly. After the first capillary liquid absorbing structure absorbs an aerosol substrate, a temperature of the cavity wall of the vaporization cavity at a position where the first capillary liquid absorbing structure is located is lowerable with endothermic vaporization of the aerosol substrate.

The present disclosure relates to a heating system comprising: a heating arrangement for heating a process medium; an inverter configured to receive an input direct-current voltage from a power supply and to produce an intermediate alternating-current voltage; a transformer configured to receive the intermediate alternating-current voltage produced by the inverter and to supply an output alternating-current voltage to the heating arrangement; a sensor arrangement configured to generate a first sensor output signal indicative of a thermodynamic parameter of the process medium or the heating arrangement; and a controller configured to control the inverter based on the first sensor output signal.

A cartridge for an aerosol-generating system includes a sensor including a capacitor with a first capacitor plate and a second capacitor plate, a storage portion for storing an aerosol-forming substrate, and a vaporizer. The storage portion is between the first capacitor plate and the second capacitor plate. The permittivity of the liquid storage portion changes upon a change of the volume f the liquid aerosol-forming substrate held in the liquid storage portion. The sensor is configured to measure the capacitance of the capacitor. The measured capacitance relates to a corresponding permittivity of the aerosol-forming substrate held in the storage portion so that the amount of the volume of the aerosol-forming substrate held in the storage portion is determinable from the measured capacitance.

A cartridge of an e-vaping device includes a housing extending in a longitudinal direction, a reservoir in the housing, a heater in the housing, and an absorbent material at least partially surrounding the sinusoidal shaped member. The reservoir is configured to store a pre-vapor formulation. The heater has a sinusoidal shaped member translating about an elliptical shape to define a channel there through. The absorbent material is in fluid communication with the reservoir.

There is disclosed an aerosol delivery device comprising: a first aerosol generator to generate a first aerosol from a first aerosol precursor and to introduce said first aerosol into a first fluid flow pathway, wherein said first aerosol is sized for pulmonary penetration; a second aerosol generator to generate a second aerosol from a second aerosol precursor and to introduce the second aerosol into a second fluid flow pathway, wherein said second aerosol generator comprises a Venturi aperture to dispense and aerosolise the in second aerosol precursor in the second aerosol generator, wherein the second aerosol precursor is a liquid, and wherein the second aerosol is sized to inhibit pulmonary penetration; wherein the second aerosol is transmissible within at least one of: a mammalian oral cavity and a mammalian nasal cavity, and the second aerosol comprising an active component for activating at least one of: one or more taste receptors in said oral cavity and one or more olfactory receptors in said nasal cavity.

An aerosol generating apparatus comprises: a power source; a load configured to have a resistance value that varies according to a temperature and generate an aerosol by atomizing an aerosol source or heating a flavor source when supplied with power from the power source; a sensor configured to include a resistor connected in series to the load and output a measurement value that is a current value of a current flowing through the resistor or a voltage value of a voltage applied to the resistor; and a control unit configured to control power supply from the power source to the load and receive output from the sensor, wherein the resistor has a resistance value that is set such that responsiveness of a change in the measurement value to a change in a temperature of the resistance value belongs to a prescribed range.