WO2022031187A1 - Générateur d'aérosol - Google Patents

Générateur d'aérosol Download PDF

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Publication number
WO2022031187A1
WO2022031187A1 PCT/RU2021/000327 RU2021000327W WO2022031187A1 WO 2022031187 A1 WO2022031187 A1 WO 2022031187A1 RU 2021000327 W RU2021000327 W RU 2021000327W WO 2022031187 A1 WO2022031187 A1 WO 2022031187A1
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WO
WIPO (PCT)
Prior art keywords
capillary
liquid medium
porous element
electromagnetic field
energy
Prior art date
Application number
PCT/RU2021/000327
Other languages
English (en)
Russian (ru)
Inventor
Карен КАЛАЙДЖЯН
Original Assignee
Карен КАЛАЙДЖЯН
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Карен КАЛАЙДЖЯН filed Critical Карен КАЛАЙДЖЯН
Priority to US18/040,160 priority Critical patent/US20230346034A1/en
Publication of WO2022031187A1 publication Critical patent/WO2022031187A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A24F40/465—Shape or structure of electric heating means specially adapted for induction heating
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10—Devices using liquid inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/30—Devices using two or more structurally separated inhalable precursors, e.g. using two liquid precursors in two cartridges
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/42—Cartridges or containers for inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/44—Wicks
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/48—Fluid transfer means, e.g. pumps
    • A24F40/485—Valves; Apertures

Definitions

  • the present invention relates to the production of an aerosol, in particular to aerosol generating devices such as electronic cigarettes and similar inhalers using heat-assisted vaporization.
  • an external heater heats the liquid medium along with a liquid impregnated wick or wick-like capillary-porous element.
  • a liquid impregnated wick or wick-like capillary-porous element When the liquid medium is heated above the boiling point, steam pockets can form near the hot surfaces of the heater and the heated wick due to the Leidenfrost effect. production of harmful substances and compounds migrating into the user's body when inhaled aerosol.
  • the present invention solves the problem of vapor pockets arising from the Leidenfrost effect at the "hot surfaces" of prior art heaters and/or capillary-porous elements.
  • the capillary-porous element is configured to transmit the energy of the electromagnetic field used to
  • SUBSTITUTE SHEET (RULE 26) internal heating of the liquid medium in the capillary-porous element, as a result of which the temperature of the capillary-porous element remains below the temperature of the liquid medium during heating.
  • liquid medium is used in the description in relation to any substance in a liquid state, for example, containing glycerol, propylene glycol, water, flavors, nicotine, alcohol, which are used in the formation of an aerosol.
  • capillary-porous element is used in the description in relation to any structure or material that has the ability to capillary transfer of a liquid medium, i.e. be saturated with a liquid medium and transport it with retention from leakage due to capillary forces.
  • capillary-porous elements can also be, for example, fibrous, spongy structures and/or materials having open capillaries and/or pores.
  • an aerosol generating device uses the energy of an electromagnetic field to heat and vaporize a liquid medium for aerosolization, containing a capillary-porous component having a first surface permeable to a liquid medium, a second surface permeable to an electromagnetic field, and a third a surface permeable to vapor of a liquid substance, made with the possibility of capillary transfer of the liquid medium in the direction from the first surface to the third surface under the second surface, while the capillary-porous component is made with the possibility of transmitting the energy of the electromagnetic field.
  • first in relation to the surfaces of a capillary-porous element, it is used in the description only for the convenience of distinguishing between surfaces, and not introducing a hierarchy in relation to them.
  • the capillary-porous component is made from a material selected from the group consisting of alumina (A1 2 O 3 ) and titanium oxide (TiO 2 ) compounds.
  • the third surface of the capillary-porous element may comprise a second surface of the capillary-porous element.
  • the second surface of the capillary-porous element may be impervious to vapor of the liquid medium.
  • the capillary-porous element may contain a plurality, preferably an array of microstructures, such as, for example, micropillars and micronozzles, formed by a third surface on the capillary-porous element.
  • the capillary-porous element is capable of transmitting the energy of an electromagnetic field for which a liquid medium having a layer thickness of less than 1000 ⁇ m is dissipative.
  • an aerosol generation device comprising a capillary-porous element may comprise a reservoir of liquid medium, further comprising a container configured to contain a liquid medium, conjugated with the first surface of the capillary-porous element; and an electromagnetic field source, further comprising an emitter directed to the second surface of the capillary-porous element, configured to generate an electromagnetic field having energy sufficient to vaporize the liquid medium.
  • reservoir is used in the description in relation to any device configured to contain and store a liquid medium.
  • electromagnetic field source is used in the description in relation to any electrical device containing at least an element that emits electromagnetic field energy or an emitter that produces an electromagnetic field due to the movement of electric charges.
  • the electromagnetic field energy emitter may comprise a laser, a light emitting diode, a lamp, a magnetron, an electrode.
  • the electromagnetic field source may comprise a field shaping means such as a reflector, a lens, a waveguide, a standing wave resonator, configured electrodes.
  • a field shaping means such as a reflector, a lens, a waveguide, a standing wave resonator, configured electrodes.
  • the capillary-porous element, the container and the emitter can be detachable from the device.
  • an aerosol generating device containing a capillary-porous element may include an air duct having an inlet and outlet containing at least a second or third side of the capillary-porous element.
  • the capillary-porous element can be made, and the electromagnetic field source can be configured to pulse the vaporization mode, generating a train of energy pulses having such pulse durations and delays between pulses that the temperature of the liquid medium cyclically rises above the boiling point of the liquid medium during the pulse and falls below the boiling point during the delay between pulses in the pulse train.
  • the method for generating an aerosol comprises providing an aerosol generation device ⁇ containing a capillary-porous element, a reservoir of a liquid medium with a container associated with the first surface of the capillary-porous element, an electromagnetic field source with an emitter ⁇ directed towards the second surface of the capillary-porous element; bringing the liquid medium into contact with the first surface of the capillary-porous element; and generating electromagnetic field energy sufficient to vaporize the liquid medium.
  • the aerosol generation method may include providing an aerosol generation device further comprising an air duct containing at least a second or third side of the capillary-porous element; and direction of air through the duct.
  • the method for generating an aerosol in a pulsed mode comprises a device capable of vaporization in a pulsed mode.
  • SUBSTITUTE SHEET (RULE 26) mode; bringing the liquid medium into contact with the first surface of the capillary-porous element; and generating a train of electromagnetic field energy pulses having a pulse duration and a delay of less than 100 ms, chosen such that the temperature of the liquid medium cycles above the boiling point during the pulse and falls below the boiling point during the delay in the pulse train.
  • the delay between pulses in the sequence of pulses may exceed the time of replenishment of the liquid medium vaporized during the pulse preceding the delay.
  • FIG. 1 is a schematic view of an aerosol generator with a capillary-porous element according to the present invention, having a surface that is permeable to both the energy of the electromagnetic field and the vapor of the liquid medium.
  • FIG. 2 is a schematic view of an aerosol generator with a capillary-porous element of the present invention having a surface that is permeable to electromagnetic field energy but impervious to liquid vapor.
  • FIG. 3 is a schematic view of an aerosol generator with a capillary porous element of the present invention containing a plurality of surface microstructures.
  • FIG. 4 is a schematic view of an aerosol generator with a capillary porous element of the present invention containing a plurality of through microstructures.
  • FIG. 5 is an illustration of an example of an aerosol generator with a capillary porous element of the present invention configured to selectively heat an aqueous
  • SUBSTITUTE SHEET (RULE 26) liquid medium by the energy of the electromagnetic field in the infrared range.
  • FIG. 6 is an illustration of an example of a capillary-porous element aerosol generator of the present invention configured for a pulsed vaporization mode.
  • FIG. 1 schematically shows a variant 10 of a device that uses the energy of an electromagnetic field to heat and vaporize a liquid medium from which an aerosol is formed.
  • the aerosol generation device 10 comprises a capillary-porous element 12 having a first surface 122 permeable to liquid medium 14, a second surface 124 permeable to electromagnetic field energy 16, and a third surface 126 permeable to vapor 142 of liquid medium 14.
  • the capillary-porous element 12 is configured to capillary transfer of the liquid medium 12', like a wick, in the direction from the first surface 122 to the third surface 126 under the second surface 124.
  • the capillary-porous element 12 is configured to transmit the energy of the electromagnetic field 16 so that the energy of the electromagnetic field 16 increases the internal energy predominantly not in the material of the capillary-porous element 12, but in the liquid medium 14, which can be retained in the capillary-porous structure of the capillary-porous element 12. Due to refractions and scattering on the capillary-porous structure, the capillary-porous element 12 may not be transparent, even if made of a transparent material, but may diffusely transmit energy
  • SUBSTITUTE SHEET (RULE 26) electromagnetic field 16 .
  • the material of the capillary-porous element 14 heats up to a lesser extent than the liquid medium 12 when exposed to the electromagnetic field 16.
  • the capillary-porous element 12 is configured to transmit electromagnetic energy 16 that dissipates in the liquid medium 14 .
  • electromagnetic energy 16 that dissipates in the liquid medium 14 .
  • capillary-porous the element 12 can be configured to transmit the energy of an alternating electromagnetic field 12 introduced into the electrically non-conductive liquid medium 14 to initiate a rise in temperature e.g. due to induction of currents, e.g.
  • the capillary-porous element 12 can be made using methods known from the prior art for manufacturing, for example, wick-like structures such as fibrous, sponge, woven structures. Due to capillary forces, the structure of the capillary-porous element 12 keeps the liquid medium 14 from flowing out, but releases the liquid medium 14 when heated by the energy of the electric field 16 due to the drop in viscosity, capillary forces and expanding vapor pressure.
  • the capillary-porous structure may have a weight on the order of 100 g/m 2 , a thickness in excess of 0.3 mm and be mechanically stable, for example, similar to prior art chemically inert high temperature ceramic or glass fiber filters. The fluid flow rate in such filters is usually higher than in cotton wool.
  • the porosity of the capillary-porous element 12 can reach 90%, making it possible for the liquid medium 14 to pass through more than 3
  • SUBSTITUTE SHEET (RULE 26) ⁇ l/s-mm 2 , withstanding pressures greater than 0.3 g/mm 2 to maintain integrity in the presence of hot gases in the pores.
  • third surface 126 may comprise a second surface 124 of capillary-porous member 12 such that the third and second surfaces may be physically the same surface.
  • Both the heating and vaporization of the liquid medium 14 by the energy of the electromagnetic field 16 and the release of vapor 142 of the liquid medium 14 to the outside of the capillary-porous element 12, for example, into the ambient air 146 can be carried out through the same surface of the capillary-porous element 12.
  • the second surface 124 is impervious to the vapor 142 of the liquid medium 14 .
  • the capillary-porous element 12 there is a path for the vapor 142 of the liquid medium 14 to propagate from under the second surface 124 to the third surface 126 and outward.
  • Heating and vaporization of the liquid medium 14 by the energy of the electromagnetic field 16 in this device can be carried out under the second surface 124 through the second surface 124, while the release of vapor 142 of the liquid medium 14 to the outside of the capillary-porous element 12 can be carried out through the third surface 126.
  • the microstructures 1262 may be micronozzles formed by the third surface 126 in an inward direction.
  • micronozzle is used in the description in relation to a hollow device made with the ability to control, in particular the direction and acceleration of the vapor 142 of the liquid medium 14 flowing through the micronozzle.
  • the micronozzles 1262 may be of varying cross-section and tapered, as shown in FIG. 3. Natural roughness may also have a guiding and accelerating profile (not shown).
  • the expanding hot vapor 142 of the liquid medium 14 is discharged through the surface 126 into the interior of the micronozzles 1262 , which, due to their profile, direct and accelerate the steam 142 in the direction from under the third surface 126 outward from the micronozzles in the form of narrow directed jets 144.
  • the falling pressure and the temperature in the steam jets 144 improve the formation of aerosol in the jets 144 when mixed with ambient air 146.
  • FIG. 4 shows an example of an aerosol generator 40 in which the micronozzles 1262 are provided through in the direction from the second surface 124 of the capillary-porous element 12 to improve mixing with ambient air 146.
  • the second surface 124 of the capillary-porous element 12 in examples 20, 30 shown in FIG. 2 and FIG. 3 can be made impermeable by one of the methods known in the art, for example, by joining, sintering or splicing porous and non-porous layers of the same material.
  • FIG. 5 is an illustration of an example of an aerosol generator 50 in accordance with the present invention, in which the material of the capillary-porous element 12 contains alumina compounds (A1 2 03 ), such as, for example, sapphire, corundum, alumina ceramic, and/or titanium oxide ( TYu 2 ), for example titanium oxide ceramics.
  • Liquid medium 14 may contain a composition of glycerin, propylene glycol, and water commonly used in the manufacture
  • SUBSTITUTE SHEET (RULE 26) inhaled aerosol.
  • the energy of the electromagnetic field 16 can overlap the infrared range.
  • water having a loss spectrum of 504 may be more dissipative to electromagnetic field energy 16 than sapphire having a loss spectrum of 502 in the infrared, so sapphire has a spectral transmission window in this range, unlike dissipative water, which makes possible its selective heating by the energy of the electromagnetic field 16 .
  • capillary-porous element 12 containing other compounds of aluminum oxide (A1 2 O 3 ) and titanium oxide (TiO 2 ) having a transmission window in the infrared region of the spectrum and a liquid medium 14 containing glycerol, propylene glycol and water, which are dissipative in this range of the spectrum.
  • A1 2 O 3 aluminum oxide
  • TiO 2 titanium oxide
  • liquid medium 14 containing glycerol, propylene glycol and water, which are dissipative in this range of the spectrum.
  • the material of the capillary-porous element 12 transmit the energy of the electromagnetic field 16, for which a layer of liquid medium 14 with a thickness of less than 1000 ⁇ m would be dissipative.
  • the capillary-porous element 12 is made of sapphire for selective heating of a liquid medium 14 containing water in the 506 spectral range, which includes a wavelength from 1.4 ⁇ m to about 10.5 ⁇ m. Within this range, the energy of the electromagnetic field 16 dissipates in a layer of liquid medium 14 having a thickness of less than 1000 microns.
  • FIG. 6 illustrates an example of an aerosol generator 60 containing a capillary-porous element designed to operate in a pulsed mode of selective heating and vaporization. Pulses 602 of electromagnetic energy 16 can follow in sequence one after another, causing the heating profile 606 of liquid medium 14 and lying in the region
  • pulse train 602 contains pulse duration t and inter-pulse delay b.
  • the capillary-porous element 12 has a characteristic heating time (thermal relaxation time) less than the pulse duration t and the characteristic heating time (thermal relaxation time) of the liquid medium 14 in pores or capillaries of the capillary-porous element 12. It is also preferable if the thermal relaxation time and the replenishment time of the capillary-porous element 12 is less than the delay time b.
  • Both the thermal relaxation time and the replenishment time of the capillary-porous element 12 are associated with the size of the pores or capillaries of the capillary-porous element 12.
  • both the thermal relaxation time and the replenishment time of the capillary-porous element 12 can range from about 1 ⁇ s to 100 ms in the case of pores or capillaries having transverse dimensions estimated to range from 1 ⁇ m to 500 ⁇ m.
  • the aerosol generator includes a reservoir 18, which may include a container configured to contain and store a liquid medium 14, mating with the first surface 122 of the capillary-porous element 12; and an electromagnetic field energy source 22 further comprising an emitter 222 directed toward the second surface 124 of the capillary-porous element 12.
  • the electromagnetic field energy source 22 is configured to generate electromagnetic field energy 16 of such magnitude as to vaporize the liquid medium 14 in the capillary-porous element 12.
  • pairs 142 may be output through the third surface 126 while the second surface 124
  • SUBSTITUTE SHEET facing the radiator 222 and impervious to vapor 142, opposes the third surface 126 as shown in FIG. 2 and FIG. 4.
  • the reservoir 18 includes the first surface 122 of the capillary-porous element 12, allowing the integration of the capillary-porous element 12 with the reservoir 18.
  • the capillary-porous element 12 can function as a container or reservoir and be a reservoir in itself. 18.
  • the third surface 126 of the capillary porous member 12 may be located peripherally in relation to the other surfaces 122, 124, as in the examples of the aerosol generator 20, 30, 40 shown in FIG. 2 - FIG. 4.
  • the electromagnetic field energy source 22 is an electrical device containing an emitter 222 and producing electromagnetic field by moving electrical charges in the field-emitting element or emitter 222, as shown in FIG. 1.
  • the electromagnetic field energy source may also contain means for generating field energy 224, for example, for directing or conducting the electromagnetic field energy 16 to the capillary-porous element 12, to collect the electromagnetic field energy 16 on the capillary-porous element 12, to introduce the electromagnetic field energy 16 into the capillary-porous element 12.
  • the source of electromagnetic energy 22 may include a user-controlled electrical control device 226 configured to control the movement of electrical charges in the emitter 222, as well as an electrical power source, for example, a battery 228, to activate the emitter 222 and the control device 226.
  • the emitter 222 of the energy of the electromagnetic field 16 can be made, depending on the wavelength ranges used, in the form of, for example, a light emitting diode, a laser, an infrared lamp,
  • the electromagnetic field energy generating means 224 can be made in the form, for example, of a reflector, lens, waveguide, standing wave resonator, electrodes, for example, parallel or coaxial, specific for the applied wavelength range, providing the most efficient conversion of the electromagnetic field energy 16 into the internal energy of the liquid environment 14 in the capillary-porous element 12.
  • the reflector 224 made in the form of an ellipsoid, can be used to collect the energy of the electromagnetic field 16 of the emitter 222 containing a halogen lamp. Other examples may be given from the prior art.
  • the electromagnetic field energy source 22 may include an emitter 222, such as a powerful diode, laser, or infrared lamp, that emits electromagnetic field energy 16 in the wavelength range of approximately 1.4 microns to 10.5 microns.
  • an emitter 222 such as a powerful diode, laser, or infrared lamp, that emits electromagnetic field energy 16 in the wavelength range of approximately 1.4 microns to 10.5 microns.
  • the reservoir 18 may be detachable, for example, together with the emitter 222.
  • the emitter 222 may be detachable in itself, for example, for replacement.
  • the emitter 222 may be configured to shield the energy of the electromagnetic field 16 into spaces outside the capillary-porous element 12.
  • examples of the aerosol generator 10, 20, 30, 40 may comprise an air duct 20 having an inlet 202 and an outlet 204 and containing a third surface! 26 of the capillary-porous element 12. Due to the negative pressure caused by inhalation from the exit side 204, ambient air 146 penetrates through the inlet 202 into the duct 20 and flows along the third surface 126 of the capillary-porous element 12. When mixed with air 146,
  • SUBSTITUTE SHEET (RULE 26) vapor 142 forms an aerosol 206 in jets 144 that flows out of outlet 204 .
  • duct 20 directs ambient air 146 along capillary-porous member 12.
  • duct 20 directs ambient air 146 through the capillary-porous element 12, more specifically through the micronozzles 1264 formed by the third surface 126 of the capillary-porous element 12.
  • expanding vapor 142 is expelled from the capillary-porous element 12 through the third surface 126 into the interior of the micronozzles 1264 and then , driven by the user's negative inspiratory pressure, are accelerated by the micronozzles 1264 and discharged outward from the capillary-porous element 12 in the form of thin directed high-velocity steam jets 144.
  • the pressure and temperature drops in the micronozzles 1264 and jets 144 favorably influence the formation of aerosol 204.
  • the capillary-porous element 12 can be made, the energy source of the electromagnetic field 22 can be configured to be vaporized in a pulsed mode.
  • the electrical control device 226 and the emitter 222 can be configured to emit the energy of the electromagnetic field 16 in the form of a pulse train 602 having a pulse duration t and a delay time between pulses b as shown in FIG. 6.
  • the temperature of the liquid medium 14 periodically rises above the boiling current Tb during the pulse duration t and falls below the boiling point Tb during the duration of the delay b between pulses, causing the heating profile 606 of the liquid medium 14 u to lie in the region of more low temperatures, the heating profile 604 of the capillary porous element 12.
  • the capillary porous element 12 has a characteristic heating time (thermal relaxation time) less than the pulse duration t and
  • SUBSTITUTE SHEET (RULE 26) characteristic heating time (thermal relaxation time) of the liquid medium 14 in the pores and capillaries of the capillary-porous element 12.
  • the capillary-porous element 12 has a thermal relaxation time and the replenishment time of the liquid medium 14 vaporized during the pulse is less than the delay time b. Both the thermal relaxation time and the replenishment time of the capillary-porous element 12 are associated with the size of the pores or capillaries of the capillary-porous element 12.
  • both the thermal relaxation time and the replenishment time of the capillary-porous element 12 can range from about 1 ⁇ s to 100 ms in the case of pores or capillaries having transverse dimensions estimated to range from 1 ⁇ m to 500 ⁇ m.
  • a method for generating an aerosol comprising providing an aerosol generating device comprising, as disclosed above, a capillary-porous element 12, configured to transmit the energy of an electromagnetic field 16, for example, in the spectral range 506 shown in FIG. 5; reservoir 18 configured to contain a liquid medium 14 , dissipative, for example, in the range 506 , coupled with the first surface 122 of the capillary-porous element 12; and an electromagnetic field energy source 22 with an emitter 222 directed toward the second surface 124 configured to emit electromagnetic field energy 16 , such as in the spectral range 506.
  • Preferred choices in the spectral range 506 may be the spectral bands 1400 nm-1900 nm, 2700 nm- 3300 nm, 6000 nm -10000 nm.
  • the liquid medium 14 is brought into contact with the first surface 122 of the capillary-porous element 12, which may also include the step of filling the reservoir 18 with the liquid medium 14.
  • the emitter 222 of the electromagnetic field energy source 22 emits the electromagnetic field energy 16, for example in the spectral range 506,
  • the capillary-porous element 12′′, the emitter 22′′, the reservoir 18 can be detachable and thus replaceable.
  • the method for generating the aerosol in this case may include the step of detaching and thereby replacing the above elements.
  • the aerosol generation method may include the step of directing air 146 through the airway, such as during a puff or inhalation by the user.
  • the capillary-porous element 12 can be made, and the electromagnetic field energy source 22 can be configured with the possibility of pulsed selective heating and vaporization.
  • the control device 224 controls the emitter 222 so that it generates the energy of the electromagnetic field 16 in the form of a train of energy pulses 602, as shown in FIG. 6 having a pulse duration, in accordance with the method in this case, the pulse duration t and delay b are less than 100 ms, within 1 ⁇ s to 100 ms.
  • the energy of the electromagnetic field 602 causes the temperature 606 of the liquid medium 14 to rise periodically above the boiling point Tb during the duration of the pulses and the temperature to fall below the boiling point below the boiling point Tb during the delay between in the sequence of pulses 602.
  • the pulses 602 of electromagnetic energy 16 can follow in sequence one after another, causing the heating profile 606 of the liquid medium 14 and the heating profile 604 of the capillary-porous element 12 lying in the region of lower temperatures due to selective heating. 14 less than 100ms, within 1us to 100ms.

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Abstract

L'invention concerne un générateur d'aérosol qui utilise l'énergie d'un champ électromagnétique pour chauffer et vaporiser un milieu liquide en vue de l'aérosolisation, lequel comprend un composant capillaire poreux possédant une première surface laissant passer le milieu liquide, une deuxième surface laissant passer un champ électromagnétique, et une troisième surface laissant passer la vapeur du milieu liquide et capable de transmettre par voie capillaire le milieu liquide dans la direction allant de la première surface vers la troisième surface sous la deuxième surface; le composant capillaire poreux laisse passer l'énergie du champ électromagnétique. L'aérosol est généré par l'énergie du champ électromagnétique par un chauffage interne sélectif du milieu liquide dissipatif dans le composant capillaire poreux laissant passer le champ magnétique.
PCT/RU2021/000327 2020-08-04 2021-08-02 Générateur d'aérosol WO2022031187A1 (fr)

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US18/040,160 US20230346034A1 (en) 2020-08-04 2021-08-02 Aerosol generator

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US202063060697P 2020-08-04 2020-08-04
US63/060,697 2020-08-04

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Citations (3)

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