Segmented Aerosol Generating Article with Recessed-Cavity Filter

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing aerosol generating devices that use liquid compositions require refilling or replacement when the liquid is depleted, and there is a need for a reusable device that can provide various flavors through different liquid compositions.

Innovation Solution

An aerosol generating article with segments impregnated with different liquid compositions, a cooler to cool the aerosol, and a filter with a recessed cavity to form a cavity for absorption resistance, integrated into an aerosol generating system with a heating element and accommodation space.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If liquid composition is stored in aerosol generating device, then aerosol can be generated continuously, but device requires refilling or replacement when liquid is depleted

Engineering Contradiction:

Improveduration of aerosol generationVSAvoidoperation convenience

Core Design Contradiction:

Duration of action of moving objectVSEase of operation

Solution Approach 1:

The aerosol generating article is divided into multiple segments, each impregnated with different liquid compositions. This segmentation allows the article to provide various flavors while maintaining continuous aerosol generation capability, resolving the contradiction between duration of action and ease of operation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The aerosol generating article is designed as a disposable component that is replaced rather than refilled. This eliminates the refilling operation entirely, improving ease of operation while maintaining continuous aerosol generation through the disposable nature of the article.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Reliability

If filter is made with high absorption resistance, then aerosol filtering is effective, but smoking impression becomes unsatisfactory

Engineering Contradiction:

Improvefiltering effectivenessVSAvoidsmoking impression quality

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The filter is designed with a cavity structure that creates localized regions of different resistance. The cavity portion provides lower resistance for satisfactory smoking impression, while the filter material portions provide filtering functionality, resolving the contradiction between filtering effectiveness and smoking impression quality.

Inventive Principle:

Principle #3Local quality

3Adaptability or versatility

If single liquid composition is used, then device structure is simple, but flavor variety is limited

Engineering Contradiction:

Improveflavor varietyVSAvoidstructure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The aerosol generating article is segmented into multiple sections, each impregnated with different liquid compositions for various flavors. This segmentation achieves flavor variety while keeping the overall device structure simple, as the segmentation is integrated into the article itself rather than requiring complex device mechanisms.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The aerosol generating article serves multiple functions: it provides structural support, delivers different flavors through segmented liquid compositions, and integrates the cooling and filtering functions. This multi-functionality achieves flavor variety without increasing device complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 device allows for reusable aerosol generation with various flavors, providing a satisfactory smoking impression by reducing absorption resistance and allowing for easy replacement of the aerosol generating article.

Implementation Method 1

an aerosol generating device including an accommodation space configured to accommodate the aerosol generating article and a heating element configured to heat the aerosol generating article

Methodology Applied

Scientific EffectHeating: Heating

Implementation Method 2

a cooler configured to cool aerosol by allowing the aerosol, generated from the first segment or the second segment, to pass through the cooler

Methodology Applied

Scientific EffectCooling: Cooling

Implementation Method 3

a filter configured to filter the aerosol by allowing the aerosol having passed through the cooler to pass through the filter

Methodology Applied

Scientific EffectFiltration: Filter (physical)

Implementation Method 4

when a user is to inhale aerosol, the aerosol generating device vaporizes the stored liquid composition to generate aerosol

Methodology Applied

Scientific EffectVaporization: Evaporation

Data Source

PatentUS12433326B2Aerosol generating article and aerosol generating system including the same

Publication Date: 2025.10.07 KT&G CO LTD

AI summary

An aerosol generating article includes: a first segment impregnated with a first liquid composition; a second segment impregnated with a second liquid composition that is different from the first liquid composition; a cooler configured to cool aerosol by allowing the aerosol, generated from the first segment or the second segment, to pass through the cooler; and a filter configured to filter the aerosol by allowing the aerosol having passed through the cooler to pass through the filter, wherein at least a portion of the filter is recessed to thereby form a cavity in the filter.