Filter Rod Channel Structure for Aerosol Mixing and Shape Support
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Solution Overview
Problem
Existing aerosol-generating articles face challenges in maintaining the shape of the filter rod under external forces and achieving homogeneous aerosol mixing.
Innovation Solution
The aerosol-generating article includes a tobacco rod surrounded by a wrapper, a filter rod with a structure supporting the wrapper, and airflow obstructions such as colliding bodies and spiral plate members to maintain shape and enhance aerosol homogeneity through vortex formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a filter rod is designed without internal support structures, then the device complexity is reduced, but the filter rod deforms under external forces applied during storage and use
Solution Approach 1:
The filter rod is divided into multiple segments by introducing partition walls that extend from the outer circumferential surface toward the central axis. These partition walls create multiple hollow spaces within the filter rod, providing structural support to maintain the cylindrical shape while preventing deformation under external forces during storage and use.
Solution Approach 2:
The partition walls are positioned at specific locations within the filter rod to provide localized structural support where needed. The walls extend from the outer surface toward the central axis but do not necessarily reach it, creating hollow spaces that maintain structural integrity while allowing aerosol flow. This localized support structure prevents deformation without requiring complete internal reinforcement.
2Stability of the object's composition
If aerosol flows directly through the filter rod without obstruction, then the airflow resistance is reduced, but the aerosol components are not homogenized
Solution Approach 1:
The filter rod is segmented into multiple hollow spaces by partition walls, which divides the aerosol flow into multiple pathways. This segmentation allows aerosol to be distributed across different channels, promoting mixing and homogenization of aerosol components while maintaining reasonable airflow resistance through the distributed pathways.
Solution Approach 2:
The partition walls extend in the radial direction from the outer circumferential surface toward the central axis, creating a three-dimensional hollow space structure. This dimensional arrangement allows aerosol to flow through multiple levels and pathways, enhancing mixing and homogenization while managing airflow resistance through the vertical and radial flow paths.
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 minimizes deformation of the filter rod shape and improves aerosol homogeneity by mixing aerosol through channels and vortex formation, providing a consistent smoking experience.
Implementation Method 1
improving homogeneity by mixing aerosol
Implementation Method 2
aerosol is mixed by a vortex or the like when the aerosol flows through a channel
Data Source
AI summary
An aerosol-generating article according to an embodiment of the disclosure includes: a tobacco rod having an outer circumferential surface surrounded by a wrapper; a filter rod having an outer circumferential surface surrounded by the wrapper, and including a segment including a structure supporting the wrapper in a transverse direction and at least one channel formed between the wrapper and the structure: and an airflow obstruction configured to obstruct an airflow of aerosol passing through the at least one channel.