Capsules, heat-not-burn (HNB) aerosol-generating devices, and methods of generating an aerosol
A capsule for a heat-not-burn (HNB) aerosol-generating device may include an inner body, an outer body around the inner body, the inner body and the outer body being concentric, the inner body and the outer body at least partly defining a cavity, an aerosol-forming substrate in the cavity, a first cap at a first end of the cavity and a second cap at a second end of the cavity, the first and second caps being configured to permit air flow from the first end of the cavity to the second end of the cavity.
1 . A capsule for an aerosol-generating device, comprising:
an inner body defining an inner receiving area and including a rolled sheet forming a spring biased plurality of layers, the inner receiving area configured to receive a heater;
an outer body around the inner body, the inner body and the outer body being concentric, the inner body and the outer body at least partly defining a cavity, the cavity and the inner receiving area being on opposing sides of the spring biased plurality of layers such that the spring biased plurality of layers at least partially defines the cavity and the spring biased plurality of layers at least partially defines the inner receiving area;
an aerosol-forming substrate in the cavity;
a first cap at a first end of the cavity; and
a second cap at a second end of the cavity, the first and second caps being configured to permit air flow from the first end of the cavity to the second end of the cavity.
2 . The capsule of claim 1 , wherein the inner body has a higher heat conductivity than the outer body.
3 . The capsule of claim 1 , wherein the second cap includes a plurality of apertures in a circular pattern.
4 . The capsule of claim 1 , wherein the second cap includes a plurality of apertures, a length of the plurality of apertures being normal to a radius of the second cap.
5 . The capsule of claim 1 , wherein the second cap includes a plurality of apertures, a length of the plurality of apertures being in a radial direction of the second cap.
6 . The capsule of claim 1 , wherein the inner body is on the second cap.
7 . The capsule of claim 1 , wherein the inner body includes a metal.
8 . The capsule of claim 1 , wherein the inner body includes paperboard, plastic, or a combination thereof.
9 . An aerosol-generating device, comprising:
a capsule, the capsule including,
an inner body, the inner body defining an inner space and including a rolled sheet forming a spring biased plurality of layers;
an outer body around the inner body, the inner body and the outer body being concentric, the inner body and the outer body at least partly defining a cavity, the cavity and the inner space being on opposing sides of the spring biased plurality of layers such that the spring biased plurality of layers at least partially defines the cavity and the spring biased plurality of layers at least partially defines the inner space;
an aerosol-forming substrate in the cavity;
a first cap at a first end of the cavity; and
a second cap at a second end of the cavity, the first and second caps being configured to permit air flow from the first end of the cavity to the second end of the cavity; and
a heater dimensioned to fit in the inner space and contact the inner body, the heater being configured to heat the inner body to generate an aerosol from the aerosol-forming substrate.
10 . The aerosol-generating device of claim 9 , wherein the inner body has a higher heat conductivity than the outer body.
11 . The aerosol-generating device of claim 9 , wherein the second cap includes a plurality of apertures in a circular pattern.
12 . The aerosol-generating device of claim 9 , wherein the second cap includes a plurality of apertures, a length of the plurality of apertures being normal to a radius of the second cap.
13 . The aerosol-generating device of claim 9 , wherein the second cap includes a plurality of apertures, a length of the plurality of apertures being in a radial direction of the second cap.
14 . The aerosol-generating device of claim 9 , wherein the inner body is on the second cap.
15 . The aerosol-generating device of claim 9 , wherein an inner diameter of the inner body expands to correspond to a diameter of the heater upon insertion of the heater.
16 . The aerosol-generating device of claim 9 , further comprising:
a mouthpiece coupled to the capsule.
17 . The aerosol-generating device of claim 9 , wherein the inner body includes metal.
18 . The aerosol-generating device of claim 9 , wherein the inner body includes paperboard, plastic, or a combination thereof.