Aerosol provision device

Abstract

An aerosol provision device generates an aerosol from aerosol-generating material. The device has an elongate tubular member that defines a heating chamber. The heating chamber receives at least a portion of an article containing aerosol-generating material. The tubular member has at least one face defining a contact surface with at least a portion of an article when the article is received in the heating chamber. The at least one face is arranged to distend away at a tangent from the at least a portion of an article when the article is received in the heating chamber.

1 . An aerosol provision device for generating an aerosol from aerosol-generating material comprising:
 an elongate tubular member defining a heating chamber configured to receive at least a portion of an article containing aerosol-generating material;   wherein the tubular member comprises at least one face defining a contact surface with at least a portion of an article when the at least a portion of an article is received in the heating chamber, wherein the at least one face is arranged to distend away at a tangent from the at least a portion of an article when the at least a portion of an article is received in the heating chamber.   
     
     
         2 . The aerosol provision device of  claim 1 , wherein the tubular member comprises a peripheral side wall defining the heating chamber 
     
     
         3 . The aerosol provision device of  claim 2 , wherein the peripheral side wall defining the heating chamber has a constant inner cross-section along the longitudinal length of the peripheral side wall. 
     
     
         4 . The aerosol provision device of  claim 2 or claim 3 , wherein the peripheral side wall comprises a first inner dimension perpendicular to the longitudinal axis between diametrically opposing portions of the peripheral side wall arranged to correspond to a diameter of at least a portion of an article when the at least a portion of an article is received in the heating chamber, and a second inner dimension perpendicular to the longitudinal axis between diametrically opposing portions of the peripheral side wall arranged to be greater than a diameter of at least a portion of an article when the at least a portion of an article is received in the heating chamber. 
     
     
         5 . The aerosol provision device of  claim 1 , wherein the at least one face is one of a plurality of inner faces defining the heating chamber. 
     
     
         6 . The aerosol provision device of  claim 5 , wherein the plurality of inner faces is configured to form a push fit with the at least a portion of an article received in the heating chamber. 
     
     
         7 . The aerosol provision device of  claim 5 , wherein the plurality of inner faces define a polygonal cross section. 
     
     
         8 . The aerosol provision device of  claim 5 , wherein at least two faces of the plurality of faces distend away at a tangent to form a juncture radially spaced from the article. 
     
     
         9 . The aerosol provision device of  claim 8  wherein the juncture comprises a corner. 
     
     
         10 . The aerosol provision device of  claim 8 , wherein the juncture comprises a fillet. 
     
     
         11 . The aerosol provision device of  claim 7 , wherein the polygonal cross section comprises at least four sides. 
     
     
         12 . The aerosol provision device of  claim 7 , wherein the polygonal cross section comprises at least four junctures. 
     
     
         13 . The aerosol provision device of  claim 12 , wherein the junctures are configured to provide axial airflow passages from a proximal end to a distal end of the tubular member. 
     
     
         14 . The aerosol provision device of  claim 7 , wherein the polygonal cross section is equilateral. 
     
     
         15 . The aerosol provision device of  claim 1 , wherein each of the at least one face is free from protrusions. 
     
     
         16 . The aerosol provision device of  claim 1 , wherein the tubular member comprises an opening at a proximal end defined by the peripheral side wall. 
     
     
         17 . The aerosol provision device of  claim 1 , wherein the tubular member comprises a heating element. 
     
     
         18 . The aerosol provision device of  claim 1 , wherein the at least one face locates the article concentrically within the heating chamber. 
     
     
         19 . An aerosol provision device for generating an aerosol from aerosol-generating material comprising:
 an elongate tubular member having a longitudinal axis and defining a heating chamber configured to receive at least a portion of an article containing aerosol-generating material;   wherein the tubular member comprises a plurality of inner faces defining the heating chamber, wherein each of the plurality of inner faces are configured to abut at least a portion of an article when the at least a portion of an article is received in the heating chamber.   
     
     
         20 . An aerosol provision system comprising the aerosol provision device of  claim 1 , and an article containing aerosol generating material, in which the article is at least partially receivable in the heating chamber of the aerosol provision device.