Aerosol Generating Device

Abstract

A system includes an aerosol generating device and a portion of aerosol generating substrate, the device including first and second housing elements configured to move between open and closed positions, wherein, in the closed position, the housing elements together define an aerosol generation chamber configured to enclose the portion, and further define an air flow channel including an inlet, an outlet and the chamber, the first housing element including a recess for receiving the portion, wherein the recess includes a flat bottom surface, and the second housing element includes a compression surface for compressing the portion towards the bottom surface, the compression and bottom surfaces being opposing surfaces of the chamber, wherein the portion is cuboid and a thickness of the portion before use in the device is greater than a distance between the compression and bottom surfaces when the first and second housing elements are in the closed position.

1 . A system comprising an aerosol generating device and a portion of aerosol generating substrate, the aerosol generating device comprising first and second housing elements configured to move between an open position and a closed position,
 wherein, in the closed position, the first and second housing elements together define an aerosol generation chamber configured to enclose the portion of aerosol generating substrate, and further define an air flow channel comprising an inlet, an outlet and the aerosol generation chamber, the first housing element comprising a recess for receiving the portion of aerosol generating substrate, wherein the recess comprises a flat bottom surface, and   the second housing element comprising a compression surface for compressing the portion of aerosol generating substrate towards the bottom surface of the recess, the compression surface and the bottom surface being opposing surfaces of the aerosol generation chamber,   wherein the portion of aerosol generating substrate is cuboid and a thickness D of the portion before use in the aerosol generating device is greater than a distance d between the compression surface and the bottom surface of the recess when the first and second housing elements are in the closed position.   
     
     
         2 . The system according to  claim 1 , wherein a compression ratio d/D between the thickness D of the portion before use and the distance d between the compression surface and the bottom surface of the recess is between 0.6 and 0.9. 
     
     
         3 . The system according to  claim 1 , wherein the first and second housing elements are connected by a hinge. 
     
     
         4 . The system according to  claim 1 , the aerosol generating device further comprising a fastener for holding the first and second housing elements in the closed position. 
     
     
         5 . The system according to  claim 1 , the aerosol generating device further comprising a gasket configured to, in the closed position, seal the air flow channel between the inlet and the outlet. 
     
     
         6 . The system according to  claim 1 , the aerosol generating device further comprising a heating element arranged to supply heat to the aerosol generation chamber through the bottom surface or the compression surface. 
     
     
         7 . The system according to  claim 1 , wherein the first housing element and/or the second housing element comprises an insulating member at least partly enclosing the aerosol generation chamber. 
     
     
         8 . The system according to  claim 1 , wherein the second housing element additionally comprises second air flow channel configured to connect to the aerosol generation chamber in the closed position, and to provide the inlet and the outlet. 
     
     
         9 . The system according to  claim 8 , wherein the second air flow channel comprises a groove in a surface of the second housing element. 
     
     
         10 . The system according to  claim 9 , wherein the second air flow channel comprises a groove in the compression surface. 
     
     
         11 . The system according to  claim 10 , wherein the second air flow channel comprises a plurality of grooves in the compression surface connected between the inlet and the outlet. 
     
     
         12 . The system according to  claim 11 , wherein the inlet comprises a plurality of distinct inlets connected to the plurality of grooves. 
     
     
         13 . The system according to  claim 11 , wherein the plurality of grooves are arranged in parallel between the inlet and the outlet. 
     
     
         14 . The system according to  claim 11 , wherein a plurality of sections of the compression surface are separated by the plurality of grooves of the second air flow channel, and each of the plurality of sections of the compression surface is configured to compress the portion of aerosol generating substrate towards the bottom surface of the recess. 
     
     
         15 . The system according to  claim 1 , further comprising an electrical power source, wherein the aerosol generating device is a portable handheld device. 
     
     
         16 . The system according to  claim 1 , wherein a compression ratio d/D between the thickness D of the portion before use and the distance d between the compression surface and the bottom surface of the recess is between 0.7 and 0.8.