Cartridge with retention element

Abstract

A cartridge for an aerosol-generating device is provided, including: a liquid storage portion to hold a liquid aerosol-forming substrate; an inner airflow path extending between proximal and distal ends of the cartridge; and a tubular internal component circumscribing part of the airflow path and including a tubular heater component including a susceptor within the airflow path for evaporating substrate, a distal end of the internal component including a retention element to receive substrate to prevent leakage, the internal component further including an airflow management component provided distal to the heater component and including a tubular sidewall circumscribing part of the airflow path, the sidewall including an air inlet, the susceptor including a planar major surface defining a plane extending through the airflow path, the plane being parallel to a longitudinal direction of the internal component, the longitudinal direction extending between the proximal and distal ends of the cartridge.

1 .- 17 . (canceled) 
     
     
         18 . A cartridge for an aerosol-generating device, the cartridge comprising:
 a liquid storage portion configured to hold a liquid aerosol-forming substrate;   an inner airflow path extending between a proximal end and a distal end of the cartridge; and   a tubular internal unit circumscribing at least a portion of the airflow path,   wherein the tubular internal unit comprises a tubular heater component comprising a susceptor element, the susceptor element being located within the airflow path and being configured for evaporating liquid aerosol-forming substrate received from the liquid storage portion,   wherein a distal end of the tubular internal unit comprises a retention element configured to receive liquid aerosol-forming substrate to prevent leakage from one or both of the susceptor element and the inner airflow path,   wherein the tubular internal unit further comprises an airflow management component provided distal to the tubular heater component,   wherein the airflow management component comprises a tubular sidewall circumscribing a portion of the inner airflow path,   wherein the tubular sidewall of the airflow management component comprises at least one air inlet,   wherein the susceptor element comprises a planar major surface, and   wherein the planar major surface defines a plane extending through the inner airflow path, the plane being parallel to a longitudinal direction of the tubular internal unit, the longitudinal direction extending between the proximal end and the distal end of the cartridge.   
     
     
         19 . The cartridge according to  claim 18 , wherein the at least one air inlet is located at a position in the tubular sidewall which is rotated out of the plane. 
     
     
         20 . The cartridge according to  claim 19 , wherein the at least one air inlet is located at a position in the tubular sidewall that is rotated out of the plane by 90 degrees. 
     
     
         21 . The cartridge according to  claim 18 , wherein the retention element comprises a closed distal end wall of the tubular internal unit. 
     
     
         22 . The cartridge according to  claim 18 , wherein the retention element is formed as a trough. 
     
     
         23 . The cartridge according to  claim 18 , wherein the retention element forms a distal end of the airflow management component. 
     
     
         24 . The cartridge according to  claim 23 , wherein the at least one air inlet is located spaced apart from the distal end of the airflow management component. 
     
     
         25 . The cartridge according to  claim 18 ,
 wherein the airflow management component further comprises an airflow directing element, and   wherein the airflow directing element is configured to direct an airflow over the susceptor element.   
     
     
         26 . The cartridge according to  claim 25 , wherein the airflow directing element extends from a distal end of the airflow management component. 
     
     
         27 . The cartridge according to  claim 25 , wherein the airflow directing element is located centrally within the inner airflow path. 
     
     
         28 . The cartridge according to  claim 25 , wherein the airflow directing element comprises at least one partition wall element extending from the tubular sidewall into the inner airflow path. 
     
     
         29 . The cartridge according to  claim 18 , wherein the distal end of the tubular internal unit forms the distal end of the cartridge. 
     
     
         30 . The cartridge according to  claim 18 , further comprising:
 a tubular sleeve element circumscribing at least a portion of the tubular internal unit;   a liquid supply channel arranged between the tubular internal unit and the tubular sleeve element; and   a wick element arranged to transfer the liquid aerosol-forming substrate from the liquid supply channel to the susceptor element.   
     
     
         31 . The cartridge according to  claim 30 , wherein the wick element comprises one or more of a cotton-based material, a porous ceramic-based material, and a porous graphite-based material. 
     
     
         32 . The cartridge according to  claim 30 , further comprising a distal sealing element configured to seal a distal end of the liquid supply channel. 
     
     
         33 . The cartridge according to  claim 32 , wherein the sealing element is an O-ring. 
     
     
         34 . The cartridge according to  claim 18 , wherein a proximal end portion of the cartridge is configured as a mouthpiece. 
     
     
         35 . The cartridge according to  claim 34 , wherein the liquid storage portion is at least partly comprised in the mouthpiece. 
     
     
         36 . The cartridge according to  claim 18 , wherein the liquid storage portion circumscribes a portion of the inner airflow path. 
     
     
         37 . An aerosol-generating system, comprising:
 the cartridge according to  claim 18 ; and   an aerosol-generating device comprising a cavity configured to receive at least a distal portion of the cartridge,   wherein the cavity is at least partly circumscribed by an inductor coil.