An aerosol-generating article comprising an aerosol-generating system and an aerosol-forming substrate

摘要

The aerosol-generating system 40 includes an aerosol-generating article 10 and an aerosol-generating device 30 . The article 10 has an upstream end 11 and a downstream end 12 , defines a longitudinal direction, and includes an upstream segment and a downstream segment 14 . The upstream segment comprises an aerosol-forming substrate 13 having a substrate outer surface 17 having a substrate outer diameter D2. The downstream segment 14 has a downstream segment outer diameter D1 that is greater than the substrate outer diameter D2. The device 30 includes a device cavity interior surface 33 having a device cavity inner diameter D4 , the device cavity 32 being configured to receive at least an aerosol-forming substrate 13 . The device 30 comprises at least one heating element 31 . When the aerosol-forming substrate 13 is received within the device cavity 32 , an airflow passage 35 is defined between the substrate exterior surface 17 and the device cavity interior surface 33 .