Rotatable Cartridge Airflow Control in Aerosol Generators
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Solution Overview
Problem
Existing aerosol-generating systems, particularly electronic vaping systems, lack customization options for airflow, which limits user control over the vaping experience and resistance to draw.
Innovation Solution
The aerosol-generating system comprises a cartridge with a rotatable housing that varies the overlap between the cartridge air inlet and the vaporiser air outlet, allowing for customizable airflow and resistance to draw. This system includes a power supply section to provide electrical power to an electric heater within the vaporiser section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the cartridge is made fixed relative to the vaporiser section, then the device structure is simpler, but the airflow and resistance to draw cannot be customized
Solution Approach 1:
The cartridge is made rotatable relative to the vaporiser section, transforming the static connection into a dynamic one. This allows the user to rotate the cartridge to different angular positions, thereby varying the overlap between the cartridge air inlet and vaporiser air outlet, and consequently controlling the airflow and resistance to draw without complicating the overall device structure
2Adaptability or versatility
If the overlap between cartridge air inlet and vaporiser air outlet is fixed, then the device is easier to manufacture, but the resistance to draw cannot be varied
Solution Approach 1:
The fixed overlap is replaced by a dynamic adjustable overlap mechanism. The cartridge can be rotated to change the angular position, which directly varies the overlap area between the cartridge air inlet and vaporiser air outlet. This provides continuous resistance variation while maintaining a simple assembly structure that is easy to manufacture
3Adaptability or versatility
If the cartridge air inlet and vaporiser air outlet are positioned to maximize overlap, then the airflow is maximized, but the resistance to draw becomes fixed at a minimum value
Solution Approach 1:
The static maximum overlap configuration is transformed into a dynamic system where the overlap area can be continuously adjusted. By rotating the cartridge, the user can vary the overlap area between the cartridge air inlet and vaporiser air outlet from maximum to minimum, thereby controlling the resistance to draw across a wide range while maintaining the capability for maximum airflow when needed
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enables continuous variation of airflow and resistance to draw, enhancing user customization of the vaping experience and providing a range of resistance values between 60 and 120 millimetres water gauge.
Implementation Method 1
the vaporiser section comprising a vaporiser housing containing an electric heater and a liquid aerosol-forming substrate
Implementation Method 2
the cartridge configured to be rotatable with respect to the vaporiser section to vary an amount of overlap between the cartridge air inlet and the vaporiser air outlet
Data Source
AI summary
An aerosol-generating system may include a cartridge, a vaporiser section configured to receive the cartridge, and a power supply section configured to supply electrical power to the vaporiser section. The cartridge may include a cartridge housing containing a solid aerosol-forming substrate and defining a cartridge air inlet that extends through a wall portion of the cartridge housing. The vaporiser section may include a vaporiser housing containing an electric heater and a liquid aerosol-forming substrate and defining a vaporiser air outlet that extends through a wall portion of the vaporiser housing. The cartridge wall portion is configured to abut the vaporiser wall portion when the cartridge is received within the vaporiser section. The cartridge configured to be rotatable with respect to the vaporiser section to vary the amount of overlap between the cartridge air inlet and the vaporiser air outlet.