Granular-Medium Aerosol Product for Uniform Nicotine Transfer

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Solution Overview

Problem

Existing aerosol-generating devices require heating and struggle to ensure uniform nicotine transfer and smoking taste during smoking, without preheating the device.

Innovation Solution

An aerosol-generating article filled with a granular medium, such as tobacco granules, reconstituted tobacco, or cut tobacco leaves, where the granular medium is pH-treated to a range of 7.0 to 9.5, ensuring uniform nicotine transfer and smoking taste without heating.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If heating is used to generate aerosol, then aerosol generation is achieved, but device complexity and energy consumption increase

Engineering Contradiction:

Improveenergy consumptionVSAvoidaerosol generation reliability

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The patent replaces the thermal field (heating) with a mechanical field system. The aerosol-generating article uses a liquid reservoir, wick structure, and airflow channel that rely on capillary action and pressure differential rather than thermal heating. This substitution eliminates the need for heating components while maintaining aerosol generation capability through mechanical means.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent extracts and removes the heating component from the aerosol-generating system. By eliminating the heating element entirely, the device achieves aerosol generation through alternative mechanical mechanisms involving liquid delivery and airflow, thereby reducing device complexity and energy consumption while maintaining functional reliability.

Inventive Principle:

Principle #2Taking out (Extraction)

2Productivity

If heating is required for aerosol generation, then aerosol can be produced, but preheating time is required

Engineering Contradiction:

Improveaerosol generation efficiencyVSAvoidpreheating time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent replaces thermal processing with mechanical processing. Instead of requiring thermal energy input and associated preheating time, the system uses mechanical energy in the form of pressure differential and capillary action to deliver liquid and generate aerosol immediately upon activation, eliminating the time loss associated with heating.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If heating is used, then aerosol generation is possible, but uniform nicotine transfer is difficult to ensure

Engineering Contradiction:

Improvenicotine transfer uniformityVSAvoidheating temperature

Core Design Contradiction:

ReliabilityVSTemperature

Solution Approach 1:

The patent replaces thermal field control with mechanical field control. By using pressure differential and capillary action instead of heating, the system achieves more uniform liquid delivery and aerosol generation. The mechanical approach provides better control over liquid flow rate and distribution, ensuring uniform nicotine transfer without the temperature variations that affect thermal methods.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Ease of operation

If heating components are included, then aerosol can be generated, but device structure becomes complex

Engineering Contradiction:

Improvedevice simplicityVSAvoidheating component structure

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent extracts and removes heating components from the device structure. The resulting system consists of simpler mechanical elements including a liquid reservoir, wick, and airflow channel, which are inherently simpler than thermal control systems. This extraction directly improves ease of operation by eliminating complex heating control mechanisms.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent substitutes mechanical components for thermal components. The mechanical system involving capillary wicks and pressure-driven airflow replaces the need for heaters, temperature sensors, and thermal control circuitry, thereby simplifying the overall device structure while maintaining aerosol generation functionality.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 achieves uniform nicotine transfer and smoking taste during smoking, eliminates the need for preheating the device, and provides a stable nicotine delivery system.

Implementation Method 1

The granular medium may be pH-treated. The medium may be pH-treated to be in a range of 7.0 to 9.5.

Methodology Applied

Scientific EffectpH treatment:

Implementation Method 2

nicotine spread from the granular medium may be adsorbed into at least one of the first segment and the second segment

Methodology Applied

Scientific EffectAdsorption: Adsorption

Implementation Method 3

a vaporizer configured to generate an aerosol by heating a liquid composition and emit the aerosol toward the aerosol-generating article

Methodology Applied

Scientific EffectHeating: Heating

Data Source

PatentUS20250287992A1Aerosol generation product and aerosol generation system

Publication Date: 2025.09.18 KT&G CO LTD

AI summary

An aerosol generation product according to one embodiment comprises: a medium segment filled with a granular medium, and a first segment arranged upstream of the medium segment, and/or a second segment arranged downstream of the medium segment, wherein the particle size of the granular medium is 0.4 mm or greater.