Aerosol Consumable Sectioning for Reduced Material, Stable Pressure Drop
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Solution Overview
Problem
Existing non-combustible aerosol provision devices face challenges in maintaining optimal mass and pressure drop while reducing the amount of aerosol-generating material, which affects user experience and efficiency.
Innovation Solution
A consumable design with a mass ratio of a first section to the aerosol-generating material exceeding 1, incorporating a pressure drop member and a cooling chamber, compensates for reduced material weight by increasing the mass in specific sections to maintain overall mass and pressure drop, using amorphous solid aerosol-generating films and discrete bodies on carriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the amount of aerosol-generating material is reduced, then the overall mass of the consumable is reduced, but the pressure drop and user experience deteriorate
Solution Approach 1:
The consumable is divided into three distinct sections: a first section (non-aerosol generating material), a second section (aerosol-generating material), and a third section (additional non-aerosol generating material). This segmentation allows each section to serve specific functions - the first and third sections provide mass and pressure drop characteristics, while the second section generates aerosol, thereby resolving the contradiction between reducing overall mass and maintaining pressure drop consistency.
Solution Approach 2:
Different sections of the consumable are assigned different material properties and functions. The first and third sections contain non-aerosol generating material with specific mass characteristics, while the second section contains aerosol-generating material. This local differentiation allows the consumable to maintain optimal pressure drop and user experience while using less total aerosol-generating material.
2Quantity of substance
If the amount of aerosol-generating material is reduced, then the efficiency and user experience may be affected, but device complexity increases due to additional sections
Solution Approach 1:
The consumable integrates multiple functions into a single unified structure. The first section provides mass and pressure drop characteristics, the second section generates aerosol, and the third section additional mass - all combined in one consumable unit. This merging approach maintains operational efficiency while using less aerosol-generating material, without requiring separate components or complex assembly.
3Quantity of substance
If aerosol-generating material is reduced, then aerosol generation effectiveness may decrease, but manufacturing precision requirements increase
Solution Approach 1:
The invention specifies precise mass ratio parameters for different sections of the consumable. The first section has a mass of 0.6-2.0 times the second section, and the third section has a mass of 0.6-2.0 times the second section. These parameter specifications provide clear manufacturing guidelines that ensure consistent aerosol generation effectiveness while using reduced amounts of aerosol-generating material, thereby managing precision requirements through defined ranges rather than single fixed values.
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 design ensures consistent user experience and efficiency by maintaining mass and pressure drop, allowing for effective aerosol generation with reduced aerosol-generating material, while supporting various flavors and active substances.
Implementation Method 1
The heating volatilises at least one component of the material, typically forming an inhalable aerosol
Implementation Method 2
a cooling chamber or segment comprising a longitudinally extending air channel for cooling the flow of air therethrough
Data Source
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AI summary
A consumable for use with a non-combustible aerosol provision device. The consumable comprises a portion of aerosol generating material, a first section extending from an upstream-most end of the portion of aerosol generating material to an upstream-most end of the consumable, and a second section extending from a downstream-most end of the portion of aerosol generating material to a downstream-most end of the consumable. The mass ratio of the first section to the portion of aerosol generating material is more than 1.