RU-2026112901-A - AEROSOL GENERATING DEVICE WITH PARALLEL AIR FLOW BRANCHES

Inventors

• Пейненбург, Йоханнес Петрус Мария

Assignees

• ФИЛИП МОРРИС ПРОДАКТС С.А.

Dates

Publication Date

20260508

Application Date

20240923

Priority Date

20230929

Claims (20)

1. 1. An aerosol generating device having a total draw resistance of an air flow path passing between at least one main air inlet at an upstream end of the air flow path and at least one main air outlet at a downstream end of the air flow path, the device comprising a common air flow device, a first air flow branch, and a second air flow branch located along the air flow path,
2. where the overall air flow arrangement sets the overall draw resistance;
3. wherein said first air flow branch comprises a first upstream air flow channel, a first cavity downstream of the first upstream air flow channel and configured to accommodate the first aerosol generating article, and a first downstream air flow channel downstream of said first cavity;
4. wherein said second air flow branch comprises a second upstream air flow channel, a second cavity located further downstream of the second upstream air flow channel and configured to accommodate a second aerosol generating article, and a second downstream air flow channel located further downstream of said second cavity;
5. wherein said first and second air flow branches are arranged parallel to each other with a fluid connection;
6. wherein said first and second air flow branches are fluidly connected to a common air flow device,
7. wherein the total draw resistance generated by the common air flow device is between 80% and 99.9% of the total draw resistance.
8. 2. An aerosol generating device according to claim 1, comprising a third branch for the air flow located in the path of the air flow,
9. wherein said third air flow branch comprises a third air flow channel located upstream, a third cavity located further downstream relative to the third upstream air flow channel and configured to accommodate a third aerosol generating article, and a third downstream air flow channel located downstream relative to said third cavity,
10. wherein said third air flow branch is located parallel to said first and second air flow branches and is connected thereto via a fluid medium; and
11. wherein said third air flow branch is fluidly connected to the common air flow device.
12. 3. An aerosol generating device according to claim 1 or 2, comprising a merging chamber located in the path of the air flow, wherein the merging chamber is located further downstream of the said branches for the air flow, and the branches for the air flow are connected via a fluid medium to the merging chamber.
13. 4. An aerosol generating device according to any one of the preceding claims, wherein the common air flow device is located closer downstream of the air flow branches and is connected to them by a fluid medium.
14. 5. An aerosol generating device according to any one of the preceding claims, wherein the total draw resistance generated by the common air flow means is from 85% to 99%, preferably from 90% to 99% of the total draw resistance.
15. 6. An aerosol generating device according to any one of the preceding claims, wherein the overall air flow arrangement comprises a flow restriction arrangement to set the overall draw resistance.
16. 7. The aerosol generating device of claim 6, wherein the overall air flow device comprises a heat exchanger or a convection heater for heating the incoming air and for setting the overall drag resistance, or the overall air flow device comprises a filter element for setting the overall drag resistance.
17. 8. An aerosol generating device according to any one of the preceding claims, wherein each downstream air flow channel of the air flow branches comprises a heat exchanger or a convection heater,
18. wherein preferably the straight section of each upstream air flow duct containing the heat exchanger or convection heater extends parallel to the straight section of the corresponding cavity, and each upstream air flow duct is a U-shaped turn between the corresponding straight sections.
19. 9. An aerosol generating device according to any one of the preceding claims, comprising for each cavity a heating element configured to heat the corresponding article to generate the aerosol when it is located in the corresponding cavity.
20. 10. The aerosol generating device according to claim 9, designed in such a way that the heating elements are designed with the possibility of independent control,