INSERT-TYPE SMOKING DEVICE WITH HEATING AT A SMALL AMOUNT OF OXYGEN, AS WELL AS A CIGARETTE SYSTEM CONTAINING IT AND A METHOD OF SMOKING Russian patent published in 2022 - IPC A24F40/40 A24F40/57 A24F47/00 

FIELD: smoking devices.

SUBSTANCE: inventions group relates to the field of devices for smoking a heated non-flammable cigarette. Plug-in type smoking device with heating at a small amount of oxygen contains a cavity for placing a smoking part, an element for extracting smoke. The element for extracting smoke contains a hollow cone and a tube for the formation of smoke of the main flow, covering the periphery of the cone. The hollow part of the cone is a tapering element provided in the area of ​​the cone apex and/or on the side wall of the cone with holes. The main flow smoke tube contains one internal cavity, which is an element similar to the Venturi tube, that is, its tapering and gradually expanding sections are connected to each other by a cylindrical cavity of a smaller internal diameter. The tube in the direction along the circumference on the side wall is provided with a through hole located in the direction of flow relative to the tapering cavity of the tube. The axial distance from the through hole to the bottom side of the cone is less than the axial distance from the hole in the cone to the bottom side of the cone. The inner diameter of said cavity for accommodating the smoking part is larger than the outer diameter of said smoke extraction element. Between the inner wall of the tapering cavity of the tube and the outer wall of the cone, an air flow channel is provided, connected with the air flow in the said cavity. A plug-in type cigarette system, a three-piece cigarette, and a method for smoking a cigarette with a small amount of oxygen are claimed.

EFFECT: increase in the heating temperature without ignition of the smoking part and an increase in the amount of released aromatic components in tobacco, due to a decrease in the oxygen content in the section with tobacco.

10 cl, 8 dwg