Assembly for generating aerosol

Abstract

An arrangement for generating an aerosol comprises a vaporiser chamber, a mouthpiece comprising an outlet for the aerosol, and a mixing chamber comprising an air inlet, wherein: an electric heating element for vaporising a liquid to be vaporised is arranged in the vaporiser chamber, wherein the electric heating element is in contact with a wick material configured to supply the liquid to the electric heating element; the vaporiser chamber comprises at least one nozzle arranged in a wall such that a connection is formed by the nozzle between the vaporiser chamber and the mixing chamber such that a liquid in the vaporiser chamber can enter the mixing chamber as a free jet of vapour; and the free jet of vapour is mixed in the mixing chamber with an incoming air flow entering via the air inlet to generate the aerosol, and the aerosol can exit the arrangement via the outlet.

1 - 14 . (canceled) 
     
     
         15 . An arrangement for generating an aerosol, the arrangement comprising a vaporiser chamber, a mouthpiece with an outlet for the aerosol and a mixing chamber with an air inlet, wherein:
 an electric heating element for vaporising a liquid is arranged in the vaporiser chamber, said electric heating element being in contact with a wick material that is configured to supply the liquid to be vaporised to the electric heating element;   the vaporiser chamber comprises at least one first nozzle which is arranged in a wall of the vaporiser chamber such that a fluid-conducting connection is formed by the first nozzle between the vaporiser chamber and the mixing chamber so that the liquid vaporised in the vaporiser chamber can enter the mixing chamber as a free jet of vapour; and   the arrangement is designed such that the free jet of vapour is mixed in the mixing chamber with an incoming air flow entering via the air inlet in order to generate the aerosol, and the generated aerosol can exit the arrangement via the outlet of the mouthpiece.   
     
     
         16 . The arrangement of  claim 15 , wherein the air inlet comprises at least one second nozzle such that the incoming air flow can enter the mixing chamber as a free jet of air. 
     
     
         17 . The arrangement of  claim 16 , wherein the at least one second nozzle is a nozzle tapering towards the inside of the mixing chamber. 
     
     
         18 . The arrangement of  claim 16 , wherein the at least one second nozzle is a flat nozzle with a rectangular cross-section, wherein the combined cross-sectional area of the second nozzles ranges from 0.5 to 2 mm 2  or from preferably 0.8 to 1.4 mm 2 . 
     
     
         19 . The arrangement of  claim 16 , wherein the air inlet and the vaporiser chamber are arranged such that the free jet of vapour and the free jet of air intersect in the mixing chamber in a region of the laminar flow such that central jets of the free jet of vapour and the free jet of air enclose an angle ranging from 5° to 175°, or from 30° to 150°, or from 50° to 130°, or from 70° to 110°, or wherein the angle is substantially 90°. 
     
     
         20 . The arrangement of  claim 15 , wherein the air inlet and the vaporiser chamber are arranged such that the free jet of vapour and the incoming air flow are substantially parallel to each other in the mixing chamber, at least in sections. 
     
     
         21 . The arrangement of  claim 20 , wherein either:
 the air inlet and the at least one first nozzle of the vaporiser chamber are arranged such that the free jet of vapour and the incoming air flow are substantially parallel to each other in the mixing chamber, at least in sections; or   one or more air guiding elements are arranged in the mixing chamber such that the free jet of vapour and the incoming air flow are substantially parallel to each other in the mixing chamber, at least in sections.   
     
     
         22 . The arrangement of  claim 20 , wherein the mixing chamber comprises either at least two air inlets or a single air inlet surrounding the at least one first nozzle which are or is arranged such that the incoming air flow is parallel on two sides of the free jet of vapour to the free jet of vapour in the mixing chamber, at least in sections. 
     
     
         23 . The arrangement of  claim 15 , wherein:
 the at least one first nozzle is a nozzle tapering towards the mixing chamber; and/or   the combined cross-sectional area of all first nozzles ranges from 0.01 to 1 mm 2 , or ranges from 0.05 to 0.8 mm 2 , or ranges from 0.1 to 0.5 mm 2 , or ranges from 0.15 to 0.4 mm 2 ; and/or   the at least one first nozzle is a flat nozzle.   
     
     
         24 . The arrangement of  claim 23 , wherein the at least one first nozzle is the flat nozzle with a rectangular cross-section. 
     
     
         25 . The arrangement of  claim 24 , wherein the rectangular cross-section comprises a gap width of 0.3 mm or less, or of 0.2 mm or less, or of 0.05 mm or less. 
     
     
         26 . The arrangement of  claim 15 , wherein the vaporiser chamber has walls which, at least in sections, are formed from a thermally insulating material or are coated with a thermally insulating material, wherein the thermally insulating material has a thermal conductivity of 0.5 W/(m K) or less, or of 0.1 W/(m K) or less. 
     
     
         27 . The arrangement of  claim 15 , wherein:
 the vaporiser chamber has walls which, at least in sections, are either formed on the inside of the vaporiser chamber from a thermally conductive material or are coated with the thermally conductive material, wherein the thermally conductive material has a thermal conductivity of 20 W/(m K) or more, or of 80 W/(m K) or more, and wherein the thermally conductive material on the inside of the vaporiser chamber is thermally coupled to the electric heating element and/or is connected to a separate heating device; and/or   wherein the at least one first nozzle is formed from the thermally conductive material with a thermally conductivity of 20 W/(m K) or more, or of 80 W/(m K) or more, and wherein the at least one first nozzle is thermally coupled to the electric heating element and/or is connected to a separate heating apparatus.   
     
     
         28 . The arrangement of  claim 15 , wherein the electric heating element is a wire coil or a plate-shaped heater chip. 
     
     
         29 . The arrangement of  claim 28 , wherein the electric heating element is the plate-shaped heater chip and wherein the plate-shaped heater chip is made of a doped or undoped semiconductor material 
     
     
         30 . The arrangement of  claim 28 , wherein the electric heating element comprises the plate-shaped heater chip and wherein the plate-shaped heater chip is traversed by a plurality of microchannels. 
     
     
         31 . A cartridge for a vaporiser system, the cartridge comprising the arrangement of  claim 15  and a liquid reservoir for receiving a liquid to be vaporised. 
     
     
         32 . The cartridge of  claim 31 , comprising one or more air ducts which are adapted to guide air past the mixing chamber to the mouthpiece. 
     
     
         33 . A vaporiser system for vaporising a liquid, or for use in a portable vaporising apparatus, or in a hand-held device, or in an e-cigarette or an inhaler for medical purposes, the vaporiser comprising the cartridge of  claim 31  and a reusable element comprising at least one electrical energy source for operating an electric heating element, wherein the cartridge and the reusable element are reversibly and non-destructively detachably connected or connectable to each other such that an electrical contact is formed between the electrical energy source and the electric heating element. 
     
     
         34 . A method for generating aerosol, the method executed with the arrangement of  claim 15 , the method comprising:
 vaporising a liquid in a vaporiser chamber, with an electric heating element arranged in the vaporiser chamber;   discharging a vaporised liquid from the vaporiser chamber into a mixing chamber through at least one first nozzle arranged in a wall of the vaporiser chamber to generate a free jet of vapour;   generating an aerosol in the mixing chamber by mixing the free jet of vapour with an air flow entering the mixing chamber via an air inlet; and   discharging the aerosol generated from the mixing chamber via an outlet of a mouthpiece.