Aerosol Susceptor Filament Bundle for Liquid Conveyance
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Solution Overview
Problem
Existing aerosol-generating systems face challenges in manufacturing complexity and limited wicking capacity, making them laborious and costly to produce, while also offering suboptimal performance in liquid conveyance and heating efficiency.
Innovation Solution
A liquid-conveying susceptor assembly with a filament bundle featuring parallel filaments in the intermediate section, allowing for enhanced capillary action and easy manufacturing, which conveys and heats aerosol-forming liquid efficiently by utilizing inductive heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex susceptor configurations are used, then heating performance may be improved, but manufacturing complexity increases and wicking capacity is limited
Solution Approach 1:
The susceptor is divided into distinct sections: a first soaking section with filaments arranged in multiple directions for liquid absorption, and a second soaking section with filaments arranged substantially in one direction for enhanced wicking. This segmentation allows each section to perform its specific function optimally while simplifying the overall manufacturing process compared to complex integrated designs.
Solution Approach 2:
Different sections of the susceptor are given different filament arrangements tailored to their specific functions. The first soaking section uses multi-directional filament arrangement for maximum liquid contact and absorption, while the second soaking section uses unidirectional arrangement for efficient liquid transport. This local optimization of structure to function improves heating performance without requiring complex overall design.
2Quantity of substance
If traditional wick elements are used, then liquid conveyance is achieved, but wicking capacity is limited
Solution Approach 1:
The susceptor utilizes the porous and fibrous structure of the filament bundle to enable capillary action. The spaces between filaments in both soaking sections create a network of capillary channels that draw liquid from the reservoir through the susceptor to the heating section, significantly enhancing wicking capacity compared to traditional solid wick elements.
Solution Approach 2:
The susceptor combines materials with different properties: the first soaking section uses filaments optimized for liquid absorption, while the second soaking section uses filaments optimized for liquid transport. This composite structure of functional filaments creates a susceptor with superior overall wicking capacity and liquid conveyance efficiency.
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 solution provides improved wicking capacity, reduced manufacturing complexity, and efficient heating, resulting in a compact, cost-effective aerosol-generating article that effectively vaporizes aerosol-forming liquids for inhalable aerosols.
Implementation Method 1
an induction source which is configured and arranged to generate an alternating magnetic field in the intermediate section of the filament bundle when the article is received in the receiving cavity in order to vaporize the aerosol-forming liquid conveyed by the susceptor assembly
Implementation Method 2
the induction source which is configured and arranged to generate an alternating magnetic field in the intermediate section of the filament bundle
Implementation Method 3
The susceptor assembly comprises a filament bundle of a plurality of inductively heatable filaments... along at least the intermediate section the plurality of filaments are arranged parallel to each other
Data Source
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AI summary
The present invention relates to an aerosol-generating article for use with an inductively heating aerosol-generating device. The article comprises a liquid reservoir for storing aerosol-forming liquid. The article further comprises a liquid-conveying susceptor assembly for conveying aerosol-forming liquid from the liquid reservoir into a region outside the liquid reservoir as well as for inductively heating the aerosol-forming liquid under the influence of an alternating magnetic field in order to generate an aerosol. The susceptor assembly comprises a filament bundle of a plurality of inductively heatable filaments. The filament bundle comprises a first soaking section, a second soaking section and an intermediate section between the first soaking section and the second soaking section. The first soaking section and the second soaking section are each arranged at least partially in the liquid reservoir and the intermediate section is arranged in a region outside the liquid reservoir. Along at least the intermediate section the plurality of filaments are arranged parallel to each other. The invention further relates an aerosol-generating system comprising such an aerosol-generating article and an aerosol-generating device for use with the article.