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Aerosol-generating system with motor

An aerosol generation and aerosol technology, which is applied in the direction of medical equipment, nebulizers for treatment, and other medical equipment, can solve the problem of heat loss and achieve the effect of a simple electronic circuit

Active Publication Date: 2018-08-03
PHILIP MORRIS PROD SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore heat may be lost during energy transfer

Method used

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  • Aerosol-generating system with motor
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  • Aerosol-generating system with motor

Examples

Experimental program
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Effect test

Embodiment Construction

[0055] Figure 1A The aerosol generating system is shown comprising an electrical circuit 10 driving a microstepper motor 12 having a drive shaft 14 . The drive shaft 14 is connected to a lead screw 16 that converts the rotational movement of the drive shaft 14 in response to the electrical pulses of the circuit 10 into axial movement. The lead screw 16 is connected to a piston 18 which moves a movable wall 26 ( Figure 1A not shown). As the pulses of the circuit 10 drive the microstepper motor 12, the available volume in the cartridge 20 is reduced by a predetermined amount. The cartridge 20 is filled with a liquid aerosol-forming substrate. Due to the volume reduction caused by the pulse, a corresponding amount of the liquid aerosol-forming substrate flows into the open nozzle 22 where it leaves the nozzle via the jet 24A. Jet 24A aerosolizes the liquid aerosol-forming substrate.

[0056] Figure 1B , 1C and 1D illustrate an aerosol-generating system with different trea...

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PUM

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Abstract

The present invention relates to an aerosol-generating system comprising a liquid storage portion for storing liquid aerosol-forming substrate, wherein the liquid storage portion comprises a movable wall and an outlet, a vaporiser comprising a heating element having a structure defining an open-ended internal passage for heating deposited liquid aerosol-forming substrate, a pump configured for delivering liquid aerosol-forming substrate from the outlet of the liquid storage portion to the internal passage of the heating element, the pump comprising a micro stepper motor with a drive shaft thatis configured to rotate for a predetermined amount upon performing one step of the micro stepper motor, a piston connected to the movable wall, and a lead screw connecting the drive shaft to the piston and configured to translate a rotation of the drive shaft into an axial movement of the piston and a corresponding axial movement of the movable wall, wherein the vaporiser is configured for heating the delivered liquid aerosol-forming substrate in the internal passage to a temperature sufficient to volatilize at least a part of the delivered liquid aerosol-forming substrate. The present invention further relates to a cartridge for an aerosol-generating system, wherein the cartridge comprises the liquid storage portion, the piston, and the lead screw. The present invention further relates to a method for generating aerosol.

Description

technical field [0001] The present invention relates to aerosol generating systems, such as hand-held electrically operated smoking systems. In particular, the present invention relates to an aerosol-generating system wherein the aerosol-forming substrate is a liquid and is contained in a liquid storage portion. Background technique [0002] One type of aerosol generating system is an electrically operated smoking system. Hand-held electrically operated smoking systems are known which consist of a device part comprising batteries and control electronics, a cartridge part comprising an aerosol-forming substrate supply held in a liquid storage part and an electrically operated vaporizer. A cartridge comprising both an aerosol-forming substrate supply and a vaporizer held in a liquid storage portion is sometimes referred to as a "cartomiser". The vaporizer typically comprises a coil of heating wire wound around an elongate core immersed in a liquid aerosol-forming matrix held...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M15/00A24F15/00A24F47/00A61M15/06A61M11/00A61M11/04A24F40/10A24F40/42A24F40/44A24F40/46A24F40/48A24F40/485
CPCA61M15/0028A61M15/06A61M11/007A61M11/042A61M15/0011A61M15/0035A61M15/0041A24F40/44A24F40/10A24F40/485A24F40/48A24F40/46A24F40/42A61M2016/0024A61M2205/8206A24B15/167A61M15/0021A24F15/00A24F15/015H05B1/0244H05B2203/021H05B2203/022
Inventor R·N·巴蒂斯塔B·马祖尔
Owner PHILIP MORRIS PROD SA
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