Aerosol-generating article comprising an aerosol-cooling element with peripheral openings

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 immediately downstream of the rod; and a first aerosol-cooling element downstream of the support element and including a hollow tubular segment including peripheral and transverse walls at a location between upstream and downstream ends of the tubular segment such that it defines a first cavity upstream of the transverse wall and a second cavity downstream of the transverse wall, the transverse wall including openings establishing fluid communication between the first and second cavities, and the peripheral wall including openings located at longitudinal positions away from the transverse wall so that fluid communication between an exterior of the tubular segment and at least one of the first and second cavities is established.

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; and   a first aerosol-cooling element positioned downstream of the hollow tubular support element, the aerosol-cooling element comprising a hollow tubular segment, the hollow tubular segment comprising a peripheral wall and 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,   wherein the transverse wall comprises one or more transverse openings establishing fluid communication between the first cavity and the second cavity, and   wherein the peripheral wall comprises one or more peripheral openings located at one or more longitudinal positions away from the transverse wall so that fluid communication between an exterior of the hollow tubular segment and at least one of the first cavity and the second cavity is established.   
     
     
         17 . The aerosol-generating article according to  claim 16 , wherein the one or more peripheral openings comprises one or more upstream openings located upstream of the transverse wall so that fluid communication between the exterior of the hollow tubular segment and the first cavity is established. 
     
     
         18 . The aerosol-generating article according to  claim 16 , wherein the one or more peripheral openings comprises one or more downstream openings located downstream of the transverse wall so that fluid communication between the exterior of the hollow tubular segment and the second cavity is established. 
     
     
         19 . The aerosol-generating article according to  claim 16 ,
 wherein the one or more peripheral openings comprises a plurality of peripheral openings,   wherein the plurality of peripheral openings comprises one or more upstream openings located upstream of the transverse wall so that fluid communication between the exterior of the hollow tubular segment and the first cavity is established, and   wherein the plurality of peripheral openings comprises one or more downstream openings located downstream of the transverse wall so that fluid communication between the exterior of the hollow tubular segment and the second cavity is established.   
     
     
         20 . The aerosol-generating article according to  claim 19 , wherein an axial length of the one or more upstream openings is less than an axial length of the one or more downstream openings. 
     
     
         21 . The aerosol-generating article according to  claim 16 , wherein the one or more peripheral openings comprises one or more circular openings. 
     
     
         22 . The aerosol-generating article according to  claim 21 , wherein a diameter of the one or more circular openings is at least about 0.5 mm. 
     
     
         23 . The aerosol-generating article according to  claim 21 , wherein a diameter of the one or more circular openings is no greater than about 2 mm. 
     
     
         24 . The aerosol-generating article according to  claim 16 , wherein the one or more peripheral openings comprises one or more elliptical openings. 
     
     
         25 . The aerosol-generating article according to  claim 24 , wherein a surface area of the one or more elliptical openings is between about 15 square mm and about 95 square mm. 
     
     
         26 . The aerosol-generating article according to  claim 16 , further comprising an annular insulating member located between the peripheral wall and the periphery of the transverse wall. 
     
     
         27 . The aerosol-generating article according to  claim 16 ,
 further comprising a second aerosol-cooling element downstream of the hollow tubular support element,   wherein the first aerosol-cooling element is positioned downstream of the second aerosol-cooling element and extends all the way to a downstream end of the aerosol-generating article.   
     
     
         28 . The aerosol-generating article according to  claim 16 , wherein the second cavity of the first aerosol-cooling element defines a mouth-end cavity at the downstream end of the aerosol-generating article. 
     
     
         29 . The aerosol-generating article according to  claim 16 , wherein a length of the first cavity of the first aerosol-cooling element is less than a length of the second cavity of the first aerosol-cooling element. 
     
     
         30 . 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 at least about 0.15.