Aerosol Article Cooling Structure for Higher Vapor Atomization
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Solution Overview
Problem
Existing aerosol-generating articles, such as heating-type cigarettes, often fail to produce an ample amount of vapor, which affects the smoking experience.
Innovation Solution
The aerosol-generating article features a design with a support structure and a cooling structure made of cellulose acetate, where the cooling structure has a larger inner diameter than the support structure, enhancing air flow diffusion and increasing the contact area and time between mainstream smoke and outside air, thereby improving vapor production and delivery uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the inner diameter of the cooling structure is increased to enhance air flow diffusion and vapor production, then the vapor production and aerosolization are improved, but the structural complexity and manufacturing difficulty increase
Solution Approach 1:
The aerosol-generating article is divided into multiple functional segments: medium portion, support structure with first hollow tube, cooling structure with second hollow tube, and mouthpiece portion. Each segment has a specific function and can be manufactured separately, reducing overall manufacturing complexity while achieving the desired vapor production through the progressive expansion of hollow tube diameters
Solution Approach 2:
The patent transitions from a uniform diameter structure to a progressive diameter expansion structure. The first hollow tube has a smaller diameter while the second hollow tube has a larger diameter, creating a dimensional change that enhances air flow diffusion and vapor production without requiring complex internal mechanisms
2Productivity
If the inner diameter difference between support structure and cooling structure is increased to improve air flow diffusion, then the contact area and time between smoke and outside air increase, but the manufacturing precision requirements increase
Solution Approach 1:
The patent applies parameter changes by specifying that the inner diameter of the second hollow tube is greater than that of the first hollow tube. This parameter change creates the necessary condition for air flow diffusion and aerosolization enhancement while providing clear manufacturing guidelines that balance precision requirements with functional performance
3Ease of manufacture
If cellulose acetate material is used for the cooling structure to reduce costs, then manufacturing cost decreases, but the material selection constraints increase
Solution Approach 1:
The patent specifies cellulose acetate material for the cooling structure, which is a cost-effective material suitable for disposable aerosol-generating articles. This material selection reduces manufacturing costs while maintaining the necessary functional properties for cooling and vapor delivery in single-use applications
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 increases vapor production and enhances the smoking experience by facilitating aerosolization and reducing smoke deflection, while also reducing costs through the use of cellulose acetate materials.
Implementation Method 1
a cooling structure which is disposed downstream of the support structure and includes a second tubular structure which has a second hollow formed therein and is made of a cellulose acetate material
Implementation Method 2
an average cross-sectional area of the second hollow may be larger than an average cross-sectional area of the first hollow
Data Source
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AI summary
Provided herein is an aerosol-generating article with enhanced vapor production. The aerosol-generating article according to some embodiments of the present disclosure includes a medium portion, a support structure which is disposed downstream of the medium portion and includes a first tubular structure having a first hollow formed therein, a cooling structure which is disposed downstream of the support structure and includes a second tubular structure having a second hollow formed therein, and a mouthpiece portion which is disposed downstream of the cooling structure. Here, an upstream end of the second tubular structure may abut a downstream end of the first tubular structure, and an average cross-sectional area of the second hollow may be larger than an average cross-sectional area of the first hollow. The cross-sectional area difference enhances an air flow diffusion effect, thereby eventually improving vapor production of the aerosol-generating article.