Aerosol Functionalization via Segmented Flavor Delivery

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Solution Overview

Problem

Electronic cigarettes fail to deliver the same quality of experience as traditional tobacco-based smoking articles due to chemical and thermal instability in composite aerosol forming liquid solutions, leading to particulate precipitation, fouling of heating elements, and degradation of the aerosol vapor.

Innovation Solution

A two-step process for generating a functionalized aerosol vapor, where an unflavored aerosol is formed using a non-flavored formulation and then subjected to a matrix for imparting organoleptic properties like taste, fragrance, and nicotine, using vapor pressure modifiers and encapsulated components to enhance delivery consistency and quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a composite aerosol forming liquid solution is used to generate aerosol-based vapor, then the organoleptic characteristics are improved, but chemical and thermal instability occurs leading to particulate precipitation and fouling of heating elements

Engineering Contradiction:
Improveorganoleptic characteristicsVSAvoidchemical and thermal stability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The invention divides the composite aerosol forming liquid into separate components: an aerosol-forming liquid and distinct taste/fragrance/nicotine delivery compositions. These components are delivered separately through different pathways (aerosol generation chamber and flavor delivery system) and combine in the aerosol stream, avoiding direct mixing that causes instability while maintaining organoleptic properties.

Inventive Principle:
Principle #1Segmentation

2Quantity of substance

If multiple components are combined in a composite aerosol forming liquid solution, then flavor and nicotine delivery are enhanced, but interactions among components cause chemical degradation and particulate precipitation

Engineering Contradiction:
Improvetaste, fragrance and nicotine deliveryVSAvoidchemical stability
Core Design Contradiction:
Quantity of substanceVSStability of the object's composition

Solution Approach 1:

The invention uses an intermediary approach where the aerosol stream itself acts as the medium for combining components. The taste, fragrance, and nicotine compositions are delivered as separate streams that mix in the aerosol phase rather than being pre-mixed in liquid form, preventing chemical degradation while enabling enhanced flavor and nicotine delivery.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of manufacture

If a composite aerosol forming liquid solution is used, then organoleptic properties are delivered, but fouling of the aerosol heating element occurs

Engineering Contradiction:
Improveorganoleptic deliveryVSAvoidheating element maintenance
Core Design Contradiction:
Ease of manufactureVSEase of repair

Solution Approach 1:

The invention extracts the flavor and nicotine delivery function from the aerosol-forming liquid and places it in a separate flavor delivery system. This separation removes the problematic composite components from contact with the heating element, preventing fouling while maintaining organoleptic delivery through the separate flavor stream.

Inventive Principle:
Principle #2Taking out (Extraction)

4Ease of manufacture

If flavor components are added to the aerosol forming liquid, then taste and fragrance are enhanced, but thermal instability increases causing degradation

Engineering Contradiction:
Improvetaste and fragrance enhancementVSAvoidthermal stability
Core Design Contradiction:
Ease of manufactureVSTemperature

Solution Approach 1:

The invention segments the flavor delivery from the thermal aerosol generation process. Flavor components are delivered through a separate system that does not involve direct heating, avoiding thermal degradation while maintaining taste and fragrance enhancement in the final aerosol product.

Inventive Principle:
Principle #1Segmentation

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 process improves the consistency and quality of aerosol vapor delivery by separating aerosol formation from flavoring, reducing degradation and precipitation issues, and allowing for flexible flavor changes without cleaning procedures, enhancing the overall vaping experience.

Implementation Method 1

a battery configured to heat the aerosol forming liquid to a temperature sufficient to generate an aerosol

Methodology Applied
Scientific EffectVaporization: Evaporation

Implementation Method 2

a porous Teflon FEP material configured to allow the aerosol vapor to pass through

Methodology Applied
Scientific EffectPermeation: Permeation

Data Source

PatentUS11013264B2Method, composition and apparatus for functionalization of aerosols from non combustible smoking articles
Publication Date: 2021.05.25 FONTEM VENTURES
  • US11013264B2 patent drawing
  • US11013264B2 patent drawing
  • US11013264B2 patent drawing

AI summary

An apparatus and method for delivering an aerosol-forming composition and a separate functional composition for generating a functionalized aerosol vapor which emulates the organoleptic characteristics and properties of mainstream smoke experienced by smoking traditional tobacco-based smoking articles. The apparatus can comprise a battery section comprising a first housing, a battery disposed within the first housing, and a first connector coupled to the housing, an aerosol section comprising a second housing, an aerosol forming chamber disposed within the second housing, and a pod bay, and an insert section comprising a third housing, a connector, an annular separator, and a mouth end. The battery section can be configured to couple to the aerosol section, the aerosol section can be configured to couple to the insert section, and the connector can be configured to fit within the pod bay.