Aerosol-generating article comprising a mouth-end cooling element

Abstract

An aerosol-generating article is provided, including: a rod of aerosol-generating substrate including an aerosol former, the substrate having an aerosol former content of greater than 10 percent on a dry weight basis; a hollow tubular support element positioned immediately downstream of the rod; an aerosol-cooling element downstream of the support element, the aerosol-cooling element extending all the way to a downstream end of the article, the aerosol-cooling element including a hollow tubular segment having a transverse wall at a location between an upstream end and a downstream end of the hollow tubular segment, such that it defines a first cavity upstream of the transverse wall and a second cavity downstream of the transverse wall, and the transverse wall including one or more openings establishing a fluid communication between the first cavity and the second cavity.

1 .- 15 . (canceled) 
     
     
         16 . An aerosol-generating article for producing an aerosol upon heating, the aerosol-generating article comprising:
 a rod of aerosol-generating substrate comprising an aerosol former, the aerosol-generating substrate having an aerosol former content of greater than 10 percent on a dry weight basis;   a hollow tubular support element positioned immediately downstream of the rod of aerosol-generating substrate;   an aerosol-cooling element downstream of the hollow tubular support element, the aerosol-cooling element extending all the way to a downstream end of the aerosol-generating article,   wherein the aerosol-cooling element comprises a hollow tubular segment having a transverse wall at a location between an upstream end and a downstream end of the hollow tubular segment, such that the hollow tubular segment defines a first cavity upstream of the transverse wall and a second cavity downstream of the transverse wall, and   wherein the transverse wall comprises one or more openings establishing a fluid communication between the first cavity and the second cavity.   
     
     
         17 . The aerosol-generating article according to  claim 16 , wherein the transverse wall has a single substantially central opening provided therein and having an equivalent diameter of between 0.3 mm and 0.6 mm. 
     
     
         18 . The aerosol-generating article according to  claim 16 , wherein the transverse wall has a plurality of substantially equally circumferentially spaced apart openings, each opening having an equivalent diameter of between 0.1 mm and 0.5 mm. 
     
     
         19 . The aerosol-generating article according to  claim 16 , wherein the transverse wall has a plurality of substantially radial slits extending from a center of the transverse wall over a length less than a radius of the transverse wall. 
     
     
         20 . The aerosol-generating article according to  claim 16 , wherein a length of the aerosol-cooling element is at least about 5 mm. 
     
     
         21 . The aerosol-generating article according to  claim 16 , wherein a length of the aerosol-cooling element is less than about 20 mm. 
     
     
         22 . The aerosol-generating article according to  claim 16 , wherein a length of the first cavity is less than a length of the second cavity. 
     
     
         23 . The aerosol-generating article according to  claim 16 , wherein a ratio between a length of the first cavity and a length of the second cavity is from about 0.15 to about 0.8. 
     
     
         24 . The aerosol-generating article according to  claim 16 , wherein a length of the first cavity is at least about 3 mm. 
     
     
         25 . The aerosol-generating article according to  claim 16 , wherein a length of the first cavity is less than about 13 mm. 
     
     
         26 . The aerosol-generating article according to  claim 16 , wherein a length of the second cavity is at least about 5 mm. 
     
     
         27 . The aerosol-generating article according to  claim 16 , wherein a length of the second cavity is less than about 17 mm. 
     
     
         28 . The aerosol-generating article according to  claim 16 , wherein a thickness of a peripheral wall of the hollow tubular segment is at least about 2 mm. 
     
     
         29 . The aerosol-generating article according to  claim 16 , wherein an outer diameter of the hollow tubular segment is at least about 3 mm. 
     
     
         30 . The aerosol-generating article according to  claim 16 ,
 further comprising a further aerosol-cooling element between the tubular support element and the aerosol-cooling element,   wherein a length of the first aerosol-cooling element is from about 4 mm to about 20 mm.