公开(公告)号：US20150342254A1

公开(公告)日：2015-12-03

申请号：US14653631

申请日：2013-12-20

Applicant: PHILIP MORRIS PRODUCTS S.A.

Inventor： Oleg MIRONOV ,  Daniele SANNA ,  Frederic LAVANCHY ,  Stephane ROUDIER

IPC: A24F47/00

CPC classification number: A24F47/006

Abstract: A smoking article is provided, having a mouth end and a distal end, including a heat source; an aerosol-forming substrate; an airflow directing element including an air-permeable segment downstream of said substrate and defining an airflow pathway; and at least one air inlet for drawing air into said segment, wherein said pathway includes a first portion extending from said inlet towards said substrate and a second portion extending from said substrate towards said mouth end, wherein said first portion is defined by a low resistance-to-draw portion of said segment that extends from proximate to said inlet to an upstream end of said segment, and said segment further comprises a high resistance-to-draw portion that extends from proximate to said inlet to a downstream end of said segment, and the ratio of the resistance-to-draw of said high portion to said low portion is higher than 1:1 and lower than about 50:1.

Abstract translation: 提供具有嘴端和远端的吸烟物品，包括热源; 气溶胶形成基材; 气流引导元件，其包括在所述基底下游的透气部分并限定气流通路; 以及用于将空气抽入所述段中的至少一个空气入口，其中所述通道包括从所述入口延伸到所述基板的第一部分和从所述基板朝向所述开口端延伸的第二部分，其中所述第一部分由低阻力 所述段的至少部分从所述入口附近延伸到所述段的上游端，并且所述段还包括从所述入口附近延伸到所述段的下游端的高阻力拉伸部分 ，并且所述高部分与所述低部分的电阻 - 拉伸比率高于1：1且低于约50：1。