Aerosol Functionalization via Segmented Heating and Wick Delivery
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Solution Overview
Problem
Electronic cigarettes fail to replicate the organoleptic characteristics and properties of traditional tobacco-based smoking articles due to chemical and thermal instability in composite aerosol forming liquid solutions, leading to particulate precipitation and degradation, which compromises the quality of the aerosol vapor.
Innovation Solution
A two-step process involving the formation of an aerosol from an aerosol forming liquid followed by functionalization using a coil wrapped structure with a flavor coated area to impart taste, fragrance, and nicotine delivery, utilizing vapor pressure as a mechanism for transferring these properties, and separate compositions for aerosol and flavor delivery to optimize taste and fragrance characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a composite aerosol forming liquid solution is used to generate aerosol vapor, then nicotine and flavor delivery is achieved, but chemical and thermal instability occurs leading to particulate precipitation and degradation
Solution Approach 1:
The invention divides the aerosol system into two separate components: a stable base liquid (propylene glycol/glycerin mixture) and a separate flavor/nicotine composition. These are delivered through distinct but coordinated pathways - the base liquid through the heating element and the flavor/nicotine composition through a separate wick and heating zone, preventing chemical incompatibility while maintaining delivery effectiveness
Solution Approach 2:
The invention introduces a wick as an intermediary component that selectively delivers the flavor and nicotine composition to the heating element without requiring direct mixing with the base liquid in a composite solution. The wick acts as a controlled delivery mechanism that separates the two compositions until the point of vaporization, maintaining stability while enabling functional delivery
2Quantity of substance
If interactions among components of composite aerosol forming liquid solution occur, then flavor and nicotine are delivered, but fouling of the aerosol heating element and chemical degradation occur
Solution Approach 1:
The heating system is segmented into two distinct heating zones: a primary heating element for the base liquid and a separate flavor heating zone where the flavor/nicotine composition is vaporized. This segmentation prevents the base liquid components from interacting with and degrading the flavor compounds, eliminating fouling while maintaining reliable flavor delivery
Solution Approach 2:
The wick serves as an intermediary that controls the delivery of the flavor/nicotine composition to the heating element, preventing direct contact between incompatible components. This controlled delivery through the wick intermediary eliminates the chemical interactions that cause fouling and degradation, ensuring long-term reliability
3Manufacturing precision
If separate compositions for aerosol and flavor delivery are used, then organoleptic quality is enhanced, but device complexity increases
Solution Approach 1:
The heating element serves multiple functions: it heats the base liquid for aerosol generation and simultaneously heats the flavor/nicotine composition delivered by the wick. This multi-functionality allows separate compositions to be used for optimized organoleptic quality without requiring entirely separate heating systems, thereby limiting the increase in device complexity
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
This approach enhances the organoleptic quality of the aerosol vapor, ensuring consistent nicotine delivery and prolonged shelf life of e-cigarette components, while simplifying manufacturing by allowing dedicated filling stations for flavored and unflavored formulations.
Implementation Method 1
a heating device for forming a thermally generated aerosol
Implementation Method 2
utilizing vapor pressure as a mechanism for transferring these properties
Data Source
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Figure 5~6
AI summary
An apparatus and method for delivering an aerosol-forming composition and a separate functional composition for generating a functionalized aerosol vapor which emulates the organoleptic characteristics and properties of mainstream smoke experienced by smoking traditional tobacco-based smoking articles. The apparatus comprises an aerosol-forming liquid which is adapted to deliver aerosol-forming liquid to a heating device and a downstream chamber or zone containing an functional composition comprising one or more organoleptic components such as a taste, fragrance and/or nicotine delivery components. The method comprises generating an aerosol from an aerosol forming liquid and functionalizing the aerosol by subjecting the aerosol to a matrix for the purpose of transferring, delivering or imparting one or more organoleptic properties.