Aerosol-generating system and aerosol-generating article for use in such a system

Patent metadata

Field	Value
Publication number	US-2018184713-A1
Application number	US-201615740084-A
Country	US
Kind code	A1
Filing date	Aug 16, 2016
Priority date	Aug 17, 2015
Publication date	Jul 5, 2018
Grant date	—

Abstract

The aerosol-generating system comprises a nicotine source, a second substance source, a first susceptor ( 21 ) for heating the nicotine source and a second susceptor ( 22 ) for heating the second substance source. The system further comprises a power source connected to a load network, the load network comprising an inductor for being inductively coupled to the first susceptor ( 21 ) and to the second susceptor ( 22 ). The invention also relates to an aerosol-generating article comprising a cartridge comprising a first compartment ( 11 ) with a nicotine source and a first susceptor ( 21 ) and a second compartment ( 12 ) with a second substance source and a second susceptor ( 22 ).

First claim

1 . Aerosol-generating system comprising:
an aerosol-generating article comprising a cartridge comprising
a first compartment comprising a nicotine source and a second compartment comprising a second substance source,
a first susceptor arranged in the first compartment for heating the nicotine source,
a second susceptor arranged in the second compartment for heating the second substance source; and
a power source connected to a load network, the load network comprising an inductor for being inductively coupled to the first susceptor and to the second susceptor.

2 . Aerosol-generating system according to claim 1 , wherein the first susceptor is configured to heat the nicotine source to a first temperature, wherein the second susceptor is configured to heat the second substance source to a second temperature, and wherein the first temperature and the second temperature are different.

3 . Aerosol-generating system according to claim 1 , wherein the first susceptor and the second susceptor differ in at least one of shape, size, material, amount and distribution.

4 . Aerosol-generating system according to claim 1 , wherein the second substance source is a lactic acid source or pyruvic acid source and the aerosol generated in the aerosol-generating system comprises nicotine salt particles.

5 . (canceled)

6 . Aerosol-generating system according to a claim 1 , wherein the first compartment and the second compartment are arranged in parallel within the cartridge.

7 . Aerosol-generating system according to claim 1 , wherein the cartridge further comprises a third compartment comprising an aerosol-modifying agent source.

8 . Aerosol-generating system according to claim 1 , wherein the cartridge is substantially cylindrical and one or both of the opposed substantially planar end faces of the cartridge is sealed by one or more frangible or removable barriers.

9 . Aerosol-generating article comprising a cartridge, the cartridge comprising:
a first compartment comprising a nicotine source; a second compartment comprising a second substance source; a first susceptor arranged in the first compartment; and a second susceptor arranged in the second compartment.

10 . Aerosol-generating article according to claim 9 , wherein the first susceptor and the second susceptor differ in at least one of shape, size, material, Curie temperature, amount and distribution.

11 . Aerosol-generating article according to claim 9 , wherein at least one of the first susceptor and the second susceptor is arranged in a central portion of the respective first compartment or the second compartment.

12 . Aerosol-generating article according to claim 9 , wherein the first susceptor and the second susceptor are elongate susceptors, preferably in the shape of susceptor strips.

13 . Aerosol-generating article according to claim 9 , the cartridge comprising a separation wall, separating the first compartment from the second compartment, wherein the separation wall comprises thermally insulating material.

14 . Aerosol-generating article according to claim 9 , wherein an outer cartridge wall comprises thermally insulating material.

15 . Method for controlling the reaction stoichiometry between nicotine vapour and a second substance vapour in an aerosol-generating system for the in situ generation of aerosol comprising nicotine, the method comprising the step of
individually heating a nicotine source by a first susceptor and heating a second substance source by a second susceptor, thereby controlling the ratio of the vaporized amount of nicotine and vaporized amount of second substance; and arranging the nicotine source and the second substance source in two separate compartments and arranging the first susceptor in one of the two compartments and arranging the second susceptor in the other one of the two compartments.

Assignees

• Philip Morris Products Sa

Inventors

• Mironov Oleg
• Zinovik Ihar Nikolaevich
• Fursa Oleg

Classifications

• H05B2206/022

  Special supports for the induction coils · CPC title

• H05B6/36

  Coil arrangements · CPC title

• H05B6/105

  using a susceptor · CPC title

• A24F47/008 Primary

  Human Necessities · mapped topic

• A24F40/90

  Arrangements or methods specially adapted for charging batteries thereof · CPC title