Aerosol generator

Abstract

Amendments to the Specification This application is a National Stage Application of International Application No. PCT/RU2021/000327, filed Aug. 02, 2021, which claims priority to U.S. Provisional Application No. 63/060,697, filed Aug. 04, 2020, which is incorporated herein by reference. The present disclosure relates to an aerosol generating device comprising a source of electromagnetic field energy capable of heating and vaporizing a liquid medium to be aerosolized, and a liquid wicking capillary-porous member which is configured to substantially transmit the electromagnetic field energy thus allowing to eliminate generation of hazardous substances during the vaporization process.

1 - 20 . (canceled) 
     
     
         21 . An aerosol generating device, comprising:
 a source of electromagnetic field energy capable of heating and vaporizing a liquid medium to be aerosolized; and   a wicking capillary-porous member,   wherein the capillary-porous member is configured to substantially transmit the electromagnetic field energy.   
     
     
         22 . The device according to  claim 21 , wherein the capillary-porous member is made of aluminum oxide and/or titanium oxide. 
     
     
         23 . The device according to  claim 21 , wherein the capillary-porous member has a first surface permeable to the liquid medium, a second surface permeable to the electromagnetic field energy, and a third surface permeable to the vapor of the liquid medium, and wherein the capillary-porous member is capable of wicking a liquid medium in the direction from the first surface to the third surface beneath the second surface. 
     
     
         24 . The device according to  claim 23 , wherein the third surface of the capillary-porous member contains the second surface of the capillary-porous member. 
     
     
         25 . The device according to  claim 23 , wherein the second surface of the capillary-porous member is impermeable to the vapor of the liquid medium. 
     
     
         26 . The device according to  claim 23 , wherein the capillary-porous member comprises an array of micro-structures formed by the third surface to accelerate the vapor and/or enlarge the vapor ejection surface of the capillary-porous member. 
     
     
         27 . The device according to  claim 26 , wherein the micro-structures are through micro-nozzles expanding from the second surface of the capillary-porous member. 
     
     
         28 . The device according to  claim 21 , wherein the electromagnetic field energy is substantially dissipated in a layer of the liquid medium having thickness less than 1000 µm. 
     
     
         29 . The device according to  claim 23 , comprising a liquid reservoir further comprising a liquid tank configured to contain a liquid medium interfaced with the first surface of the capillary-porous member; and an electromagnetic field source further comprising an emitter, emitting the electromagnetic fields energy toward the second surface of the capillary-porous member, configured to generate sufficient electromagnetic field energy to vaporize the liquid medium. 
     
     
         30 . The device according to  claim 29 , wherein the emitter of the electromagnetic field source is comprised of at least one of the following emitting means: a laser, light emitting diode, lamp, magnetron, electrodes. 
     
     
         31 . The device according to  claim 29 , wherein the electromagnetic field source comprises at least one of the following field-forming means or arrangements: reflector, lens, waveguide, standing-wave resonator, electrodes. 
     
     
         32 . The device according to  claim 29 , wherein the emitter and the capillary-porous member with tank are separately detachable. 
     
     
         33 . The device according to  claim 29 , further comprising an air duct having inlet and outlet, wherein the air duct contains at least one of the second and third surfaces of the capillary-porous member. 
     
     
         34 . The device according to  claim 29 , wherein the electromagnetic field energy source is configurable to emit a sequence of the electromagnetic field energy pulses having duration and delay in the range of 1 µs to 100 ms correlated with the thermal relaxation time of the liquid medium in the pores of the capillary-porous member for vaporization in a pulsed mode. 
     
     
         35 . A method for generation of aerosol comprising: providing the device according to  claim 29 ; bringing the liquid medium into engagement with the first surface of the capillary-porous member; and generating electromagnetic field energy to initiate vaporization of the liquid medium. 
     
     
         36 . A method for generation of aerosol comprising: providing the device according to  claim 32 ; bringing the liquid medium into engagement with the first surface of the capillary-porous member; generating electromagnetic field energy to initiate vaporization of the liquid medium; and performing the detachment. 
     
     
         37 . A method for generation of aerosol comprising: providing the device according to  claim 33 ; bringing the liquid medium into engagement with the first surface of the capillary-porous member; generating electromagnetic field energy to initiate vaporization of the liquid medium; and directing air through the air duct. 
     
     
         38 . A method for generation of aerosol comprising: providing the device according to  claim 34 ; bringing the liquid medium into engagement with the first surface of the capillary-porous member; and generating the electromagnetic field energy in a sequence of pulses having duration and delay in the range of 1 µs to 100 ms correlated with the thermal relaxation time of the liquid medium in the pores of the capillary-porous member to initiate vaporization of the liquid medium in a pulse mode. 
     
     
         39 . The method according to  claim 38 , wherein the delay between the pulses in the sequence of pulse is not shorter than the time for refilling of the liquid medium vaporized in the capillary-porous member by the pulse prior to the delay.