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

VSEngineering 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

Engineering Contradiction:
Improveaerosol generationVSAvoidmaterial structure
Core Design Contradiction:
ProductivityVSDevice complexity

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

Inventive Principle:
Principle #31Porous materials

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

Engineering Contradiction:
Improveaerosol deliveryVSAvoidmaterial structure
Core Design Contradiction:
ReliabilityVSDevice complexity

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

Inventive Principle:
Principle #31Porous materials

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

Engineering Contradiction:
Improveaerosol delivery efficiencyVSAvoidheat transfer
Core Design Contradiction:
ProductivityVSLoss of energy

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

Inventive Principle:
Principle #31Porous materials

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

Inventive Principle:
Principle #1Segmentation

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

Methodology Applied
Scientific EffectVolatilization: Evaporation

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

Methodology Applied
Scientific EffectGas passage through porous material: Permeation

Implementation Method 3

maintaining heat transfer and aerosol delivery

Methodology Applied
Scientific EffectHeat conduction: Conduction (thermal)

Data Source

PatentUS20210289833A1Aerosol generation
Publication Date: 2021.09.23 NICOVENTURES TRADING LTD
  • US20210289833A1 patent drawing
  • US20210289833A1 patent drawing
  • US20210289833A1 patent drawing

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.