Vented Aerosol-Forming Substrate for Heat Transfer and Delivery
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Solution Overview
Problem
In aerosol generation systems, the absence of vents in the aerosol-forming material leads to trapped volatilized components, preventing aerosol delivery and compromising heat transfer, which reduces aerosol generation and user experience.
Innovation Solution
Incorporating vents, such as apertures or burst points, in the aerosol-forming material allows for the passage of aerosol or gases, preventing trapping and maintaining heat transfer and aerosol delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If vents are not provided in the aerosol-forming material, then the material structure remains intact and simple, but volatilized components become trapped, preventing aerosol delivery and compromising heat transfer
Solution Approach 1:
The aerosol-forming material is designed with vents (apertures or burst points) that create a porous structure, allowing volatilized components to pass through the material and enabling effective aerosol delivery while maintaining heat transfer efficiency
2Reliability
If vents are provided in the aerosol-forming material, then aerosol delivery and heat transfer are improved, but the material structure becomes more complex
Solution Approach 1:
The material incorporates vents as integral features during manufacturing, creating controlled porosity that ensures reliable aerosol delivery and heat transfer without requiring additional complex components or structures
3Productivity
If the carrier is impermeable to aerosol or gas, then aerosol is directed through the vents in the material, but heat transfer may be compromised without proper venting
Solution Approach 1:
The combination of an impermeable carrier with a vented aerosol-forming material creates a controlled system where heat transfers efficiently through the carrier to the material, and volatilized components are channeled through the vents, optimizing both heat transfer and aerosol delivery
Solution Approach 2:
The system is segmented into distinct functional layers: the impermeable carrier for heat transfer and the vented aerosol-forming material for aerosol generation, allowing each component to optimize its specific function
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 vents improve aerosol delivery and heat transfer, ensuring sustained aerosol generation and enhanced user experience by allowing gas or aerosol release and preventing separation of the aerosol-forming material from the carrier.
Implementation Method 1
The heating volatilises at least one component of the material, typically forming an inhalable aerosol
Implementation Method 2
one or more vents are provided in the aerosol-forming material to allow the passage of aerosol or gases through the aerosol-forming material in use
Implementation Method 3
maintaining heat transfer and aerosol delivery
Data Source
AI summary
Described herein is an aerosol-forming substrate comprising an aerosol-forming material provided on a carrier, wherein the aerosol-forming material comprises an amorphous solid and wherein one or more vents are provided in the aerosol-forming material to allow the passage of aerosol and/or gases through the aerosol-forming material in use.


