Aerosol Generating Device

Abstract

An aerosol generating device comprises: a tubular heating chamber comprising an opening arranged to receive a consumable; a heater comprising a heating region which extends over a portion of the total length of the tubular heating chamber, the heating region comprising a first end closest to the opening and an opposing second end; an elongate consumable arranged to be received such that it lies along the length of the heating chamber, the consumable comprising an aerosol substrate which extends over a portion of the total length of the consumable; and wherein the heating chamber and consumable are configured such that, when the consumable is received within the heating chamber, the first end of the heating region is aligned with a first end of the aerosol substrate such that the second end of the aerosol substrate extends beyond the second end of the heating region.

1 . An aerosol generating device comprising:
 a tubular heating chamber comprising an opening arranged to receive a consumable;   a heater comprising a heating region which extends over a portion of a total length of the tubular heating chamber, the heating region comprising a first end closest to an opening and an opposing second end;   an elongate consumable arranged to be received such that it lies along the length of the heating chamber, the consumable comprising an aerosol substrate which extends over a portion of the total length of the consumable, wherein the a length of the aerosol substrate is greater than a length of the heating region; and wherein   the heating chamber and consumable are configured such that, when the consumable is received within the heating chamber, the first end of the heating region is aligned with a first end of the aerosol substrate such that a second end of the aerosol substrate extends beyond the second end of the heating region.   
     
     
         2 . The aerosol generating device of  claim 1 , wherein:
 the opening of the heating chamber comprises an open end and the heating chamber comprises an opposing closed end.   
     
     
         3 . The aerosol generating device of  claim 2 , wherein the closed end comprises an indent extending into the heating chamber. 
     
     
         4 . The aerosol generating device of  claim 1 , wherein the heating region extends along more than half of the length of the aerosol substrate from the first end of the aerosol substrate. 
     
     
         5 . The aerosol generating device of  claim 1 , wherein the heating region extends along less than 90% of the length of the aerosol substrate from the first end of the aerosol substrate. 
     
     
         6 . The aerosol generating device of  claim 1 , wherein the heating region extends along ¾-⅞ of the length of the aerosol substrate from the first end of the aerosol substrate. 
     
     
         7 . The aerosol generating device of  claim 1 , wherein the second end of the aerosol substrate is at an end of the consumable and the aligned first ends of the aerosol substrate and heating region are positioned at an intermediate position along the length of the consumable. 
     
     
         8 . The aerosol generating device according to  claim 1 , wherein the consumable comprises an aerosol cooling region extending over a portion of the length of the consumable, the aerosol cooling region comprising a hollow tubular portion of the consumable. 
     
     
         9 . The aerosol generating device of  claim 1 , wherein the aerosol substrate comprises tobacco. 
     
     
         10 . The aerosol generating device of  claim 1 , wherein the heater is configured to heat the aerosol substrate to an elevated temperature to release an aerosol, without burning the consumable. 
     
     
         11 . The aerosol generating device of  claim 10 , wherein the heater is configured to heat the aerosol substrate to a maximum temperature between 150° C. and 350° C. 
     
     
         12 . The aerosol generating device of  claim 1 , wherein the opening of the heating chamber comprises an open end and the heating chamber comprises an opposing closed end, wherein the heating chamber and the consumable are configured such that, during use, air enters through the open end of the chamber and passes through an air channel between the heating chamber and the consumable to reach the aerosol substrate. 
     
     
         13 . The aerosol generating device of  claim 12 , wherein the heating chamber and the consumable are arranged such that the air channel passes the heating region so as to pre-heat the air before it reaches the aerosol substrate.