Aerosol-generating article comprising a ventilation zone downstream of a downstream filter segment

Abstract

An aerosol-generating article is provided, including: a rod of aerosol-generating substrate; and a downstream section provided downstream of the rod of aerosol-generating substrate, the downstream section including: a downstream filter segment being a solid plug, a ventilation zone disposed at a location downstream of the downstream filter segment, and a downstream hollow tubular element disposed at a location downstream of the downstream filter segment, the ventilation zone including a plurality of perforations through a peripheral wall of the downstream hollow tubular element, the downstream hollow tubular element having a thickness of the peripheral wall of between 0.3 millimetre and 0.75 millimetre, and the downstream hollow tubular element extending to a downstream end of the aerosol-generating article. An aerosol-generating system including the aerosol-generating article and an aerosol-generating device is also provided.

1 .- 28 . (canceled) 
     
     
         29 . An aerosol-generating article, comprising:
 a rod of aerosol-generating substrate; and   a downstream section provided downstream of the rod of aerosol-generating substrate, the downstream section comprising:
 a downstream filter segment, wherein the downstream filter segment is a solid plug, 
 a ventilation zone disposed at a location downstream of the downstream filter segment, and 
 a downstream hollow tubular element disposed at a location downstream of the downstream filter segment, 
 wherein the ventilation zone comprises a plurality of perforations through a peripheral wall of the downstream hollow tubular element, 
 wherein the downstream hollow tubular element has a thickness of the peripheral wall of between 0.3 millimetre and 0.75 millimetre, and 
 wherein the downstream hollow tubular element extends to a downstream end of the aerosol-generating article. 
   
     
     
         30 . The aerosol-generating article according to  claim 29 , wherein the downstream hollow tubular element abuts a downstream end of the downstream filter segment. 
     
     
         31 . The aerosol-generating article according to  claim 29 , wherein the ventilation zone is disposed at a location along the downstream hollow tubular element. 
     
     
         32 . The aerosol-generating article according to  claim 31 , wherein the ventilation zone is disposed at a location towards an upstream end of the downstream hollow tubular element. 
     
     
         33 . The aerosol-generating article according to  claim 29 , wherein the downstream hollow tubular element comprises a hollow acetate tube. 
     
     
         34 . The aerosol-generating article according to  claim 29 , wherein the downstream hollow tubular element has a length of at least 3 millimetres. 
     
     
         35 . The aerosol-generating article according to  claim 29 , wherein the downstream hollow tubular element a length of less than or equal to 15 millimetres. 
     
     
         36 . The aerosol-generating article according to  claim 29 , wherein the downstream hollow tubular element a length of between 3 millimetres and 15 millimetres. 
     
     
         37 . The aerosol-generating article according to  claim 29 , wherein the ventilation zone further comprises at least one circumferential row of perforations. 
     
     
         38 . The aerosol-generating article according to  claim 37 , wherein each circumferential row of perforations comprises between 8 perforations and 30 perforations. 
     
     
         39 . An aerosol-generating article, comprising:
 a rod of aerosol-generating substrate; and   a downstream section provided downstream of the rod of aerosol-generating substrate, the downstream section comprising:
 a downstream filter segment, wherein the downstream filter segment is a solid plug, and wherein the downstream filter segment has a length of less than or equal to 10 millimetres, 
 a ventilation zone disposed at a location downstream of the downstream filter segment, 
 a downstream hollow tubular element disposed at a location downstream of the downstream filter segment, and 
 an additional downstream hollow tubular element, wherein the additional downstream hollow tubular element abuts a downstream end of the downstream hollow tubular element. 
   
     
     
         40 . The aerosol-generating article according to  claim 39 , wherein the downstream hollow tubular element abuts a downstream end of the downstream filter segment. 
     
     
         41 . The aerosol-generating article according to  claim 39 , wherein the ventilation zone is disposed at a location along the downstream hollow tubular element. 
     
     
         42 . The aerosol-generating article according to  claim 41 , wherein the ventilation zone is disposed at a location towards an upstream end of the downstream hollow tubular element. 
     
     
         43 . The aerosol-generating article according to  claim 39 , wherein the downstream hollow tubular element comprises a hollow acetate tube. 
     
     
         44 . The aerosol-generating article according to  claim 39 , wherein the downstream hollow tubular element has a length of at least 3 millimetres. 
     
     
         45 . The aerosol-generating article according to  claim 39 , wherein the downstream hollow tubular element a length of less than or equal to 15 millimetres. 
     
     
         46 . The aerosol-generating article according to  claim 39 , wherein the downstream hollow tubular element a length of between 3 millimetres and 15 millimetres. 
     
     
         47 . The aerosol-generating article according to  claim 39 , wherein the ventilation zone comprises a plurality of perforations through a peripheral wall of the downstream hollow tubular element. 
     
     
         48 . The aerosol-generating article according to  claim 47 , wherein the ventilation zone further comprises at least one circumferential row of perforations. 
     
     
         49 . The aerosol-generating article according to  claim 48 , wherein each circumferential row of perforations comprises between 8 perforations and 30 perforations. 
     
     
         50 . The aerosol-generating article according to  claim 39 ,
 wherein the downstream section further comprises a hollow tubular cooling element,   wherein the hollow tubular cooling element is disposed at a location upstream of the downstream filter segment, and   wherein the hollow tubular cooling element has a length of at least 10 millimetres.   
     
     
         51 . An aerosol-generating system, comprising:
 an aerosol-generating article according to  claim 29 ; and   an aerosol-generating device comprising a heating chamber configured to receive the aerosol-generating article and at least a heating element provided at or about a periphery of the heating chamber.