Aerosol provision system

Abstract

An aerosol provision system ( 1 ) for generating an aerosol from an aerosol-generating material ( 43 ) during a session of use, the aerosol provision system comprising: the aerosol-generating material ( 43 ); at least one heater ( 48 ) configured to aerosolise the aerosol-generating material ( 43 ); a plurality of substances ( 60, 70 ) disposed within the aerosol provision system ( 1 ) and arranged to be released at different times during the session of use; wherein a first substance ( 60 ) of the plurality of substances is encapsulated by a first shell ( 61 ), and a second substance ( 70 ) of the plurality of substances is encapsulated by a second shell ( 71 ).

1 . An aerosol provision system for generating an aerosol from an aerosol-generating material during a session of use, the aerosol provision system comprising:
 the aerosol-generating material;   at least one heater configured to aerosolise the aerosol-generating material;   a plurality of substances disposed within the aerosol provision system and arranged to be released at different times during the session of use;   wherein a first substance of the plurality of substances is encapsulated by a first shell, and a second substance of the plurality of substances is encapsulated by a second shell.   
     
     
         2 . The aerosol provision system of  claim 1 , wherein the first substance encapsulated by the first shell and the second substance encapsulated by the second shell are provided within the aerosol-generating material. 
     
     
         3 . The aerosol provision system of  claim 1 , wherein the first shell is partially or completely formed from a first material configured to rupture, degrade or melt in response to an increase in temperature of the first shell to at least a first temperature; and
 wherein the second shell is partially or completely formed from a second material configured to rupture, degrade or melt in response to an increase in temperature of the second shell to at least a second temperature.   
     
     
         4 . The aerosol provision system of  claim 3 , wherein the first temperature is less than the second temperature. 
     
     
         5 . The aerosol provision system of  claim 4 , wherein the first temperature is at least 10° C. lower than the second temperature. 
     
     
         6 . The aerosol provision system of  claim 3 , wherein the first material is different to the second material. 
     
     
         7 . The aerosol provision system of  claim 3 , wherein the first shell is thinner than the second shell. 
     
     
         8 . The aerosol provision system  claim 1 , wherein the plurality of substances comprise one or more active constituents, one or more flavours, and/or one or more aerosol-modifying agents. 
     
     
         9 . The aerosol provision system of  claim 1 , wherein the first substance is different to the second substance. 
     
     
         10 . The aerosol provision system of  claim 1 , wherein the aerosol provision system comprises a controller configured to select a heating profile from a plurality of predetermined heating profiles, the selected heating profile configured to release the first substance at a different time to the second substance during the session of use. 
     
     
         11 . The aerosol provision system of  claim 1 , wherein aerosol provision system comprises at least two heaters configured to aerosolise the aerosol-generating material, wherein the first shell is primarily heated by a first heater of the at least two heaters and the second shell is primarily heated by a second heater of the at least two heaters. 
     
     
         12 . An article for use in an aerosol provision system for generating an aerosol from an aerosol-generating material during a session of use, the article comprising:
 the aerosol-generating material;
 a first substance of a plurality of substances encapsulated by a first shell configured to release the first substance at a first time; and a second substance of a plurality of substances encapsulated by a second shell configured to release the second substance at a second time. 
   
     
     
         13 . A method of controlling an amount of power supplied to a heater for generating an aerosol from an aerosol-generating material, the method comprising:
 providing an aerosol-generating material, a first substance of the plurality of substances encapsulated by a first shell, and a second substance of the plurality of substances encapsulated by a second shell;   supplying an amount of power to the heater in order to release the first substance from the first shell at a first time; and   supplying an amount of power to the heater in order to release the second substance from the second shell at a second time, different to the first time.   
     
     
         14 . A computer readable storage medium comprising instructions which, when executed by a processor, perform the method of  claim 13 . 
     
     
         15 . (canceled)