Inductively Heatable Aerosol Rod with Susceptor Core and Sleeve
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Solution Overview
Problem
Existing inductively heatable aerosol-forming rods lack diversity in producing aerosols and are not compatible with existing inductively heating devices, limiting their versatility and application.
Innovation Solution
The design of an inductively heatable aerosol-forming rod with a cylindrical core portion sandwiched between two elongate susceptors and surrounded by a sleeve portion, allowing for multiple heating zones and the use of different aerosol-forming substrates and flavoring materials to enhance aerosol diversity, while being compatible with existing devices without requiring modifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single aerosol-forming substrate is used in the rod, then the device structure remains simple, but the diversity of producible aerosols is limited
Solution Approach 1:
The rod is divided into two distinct portions: a core portion containing a first aerosol-forming substrate and a sleeve portion containing a second aerosol-forming substrate. This segmentation allows each portion to contribute different aerosol characteristics, thereby increasing overall aerosol diversity while maintaining a relatively simple overall structure that fits within existing device cavities.
Solution Approach 2:
The sleeve portion is arranged around the core portion, creating a nested configuration where the second aerosol-forming substrate surrounds the first. This nesting approach allows multiple aerosol-forming materials to be integrated within a compact rod structure that maintains compatibility with existing cylindrical device cavities, thus increasing versatility without proportionally increasing external dimensions.
2Adaptability or versatility
If multiple aerosol-forming substrates are used in the rod, then aerosol diversity is enhanced, but the compatibility with existing cylindrical receiving cavity devices may be compromised
Solution Approach 1:
The rod design maintains a universal outer cylindrical shape that fits within existing device receiving cavities, while internally incorporating multiple aerosol-forming substrates in a core-sleeve configuration. This allows the rod to serve multiple aerosol-generation functions while maintaining compatibility with existing single-substrate device architectures.
Solution Approach 2:
The nested configuration of the sleeve portion around the core portion allows multiple aerosol-forming materials to be integrated within a compact rod structure that maintains compatibility with existing cylindrical device cavities, thus increasing versatility without proportionally increasing external dimensions.
3Adaptability or versatility
If a uniform rod structure is used, then manufacturing is simpler, but the ability to provide different sensorial stimulations is reduced
Solution Approach 1:
The rod employs local quality differentiation by assigning distinct aerosol-forming substrates to different regions: the core portion contains a first substrate optimized for certain aerosol properties while the sleeve portion contains a second substrate optimized for other properties. This allows different sensorial stimulations (flavors, throat hits, visual effects) to be delivered from different portions of the rod, enhancing versatility while using relatively simple manufacturing processes for each portion.
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
This configuration enables the production of a wide variety of aerosols by adjusting heating temperatures and releasing volatile compounds from different portions of the rod, maintaining compatibility with existing inductively heating devices without the need for modifications.
Implementation Method 1
For heating the substrate, it may be arranged in thermal proximity of or direct physical contact with a susceptor which is inductively heated by an alternating electromagnetic field
Implementation Method 2
The field may be provided by an induction source that is part of an aerosol-generating device
Implementation Method 3
As the released compounds cool, they condense to form an aerosol
Data Source
AI summary
An inductively heatable aerosol-forming rod for an aerosol-generating article is provided, including: at least one cylindrical core portion including at least one of a first aerosol-forming substrate and a first flavoring material; a first elongate susceptor laterally abutting the core portion at a first side along a longitudinal axis of the rod; a second elongate susceptor laterally abutting the core portion at second side along the longitudinal axis opposite to the first side such that the core portion is sandwiched between the first and the second susceptors; and a sleeve portion arranged around the core portion and the first and the second susceptors, the sleeve portion including at least one of a filler material, a second aerosol-forming substrate, and a second flavoring material. A shaping device for manufacturing of the inductively heatable aerosol-forming rods is also provided.