Multi-Chamber Aerosol Inhaler With Separate Airflow Paths

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Solution Overview

Problem

Aerosol-generating devices, such as electronic cigarettes, lack the ability to easily switch between different consumables without contamination and offer limited user experience options, as they often require repositioning of mouthpieces and lack separate airflow management for multiple consumables.

Innovation Solution

An aerosol-generating device with multiple receiving chambers and separate mouthpieces, each with independent airflow, allowing for the simultaneous use of different consumables without mixing their substances, with options for heating elements and atomization methods tailored to each consumable type.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single receiving chamber and mouthpiece configuration is used, then the device structure is simple, but the user cannot switch between different consumables without contamination and has limited experience options

Engineering Contradiction:
ImproveAbility to switch between different consumablesVSAvoidDevice structure with multiple receiving chambers and mouthpieces
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The device is divided into multiple independent receiving chambers (at least two), each capable of accommodating a different consumable type. This segmentation allows users to store and switch between different consumables (e.g., tobacco-based, herb-based, liquid-based) without cross-contamination, as each chamber remains isolated from the others.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The device employs a universal mouthpiece system that can be selectively connected to any of the multiple receiving chambers. This multi-functional design allows a single mouthpiece structure to serve multiple consumable types, enabling users to switch between different experiences (flavor-based, nicotine-based, etc.) without requiring separate mouthpieces for each consumable type.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If mouthpieces are shared between multiple consumables, then the device structure is simpler, but contamination occurs when switching between different consumable types

Engineering Contradiction:
ImprovePrevention of contamination when switching consumablesVSAvoidSeparate mouthpiece configuration for each receiving chamber
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The airflow system is segmented into separate, isolated pathways for each receiving chamber. Each mouthpiece is dedicated to a specific receiving chamber, creating independent airflow circuits that prevent cross-contamination between different consumable types. This ensures that substances from one consumable cannot mix with or contaminate another consumable.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The device incorporates separate airflow channels and physical barriers (such as partitions or seals) that act as intermediaries between different receiving chambers and their associated mouthpieces. These intermediaries ensure complete isolation of airflow paths, preventing any direct contact or mixing between substances from different consumables while allowing smooth transitions between them.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If repositioning of mouthpiece is required to switch consumables, then fewer mouthpieces are needed, but user experience is degraded and switching is not seamless

Engineering Contradiction:
ImproveSeamless switching between consumablesVSAvoidMultiple mouthpieces and receiving chambers configuration
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The device incorporates a dynamic mouthpiece selection mechanism that allows users to easily switch between different receiving chambers without physical repositioning. The mouthpiece system is designed to be selectively connectable to any receiving chamber through simple user actions (such as pressing buttons or rotating selectors), enabling seamless transitions between different consumables while maintaining a fixed overall device structure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Multiple receiving chambers are pre-configured and ready to accommodate different consumable types simultaneously. The device maintains all receiving chambers in a ready state with their associated mouthpieces already positioned and connected, eliminating the need for any repositioning actions when switching consumables. Users can simply select their desired consumable, and the system is immediately ready for use.

Inventive Principle:
Principle #10Preliminary action

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

Enables seamless switching between consumables, preventing contamination and enhancing user experience by allowing spontaneous selection of flavor or nicotine-based experiences, with separate airflow management ensuring distinct inhalation profiles for each consumable.

Implementation Method 1

each receiving chamber comprises one of a heating element for heating a consumable accommodated in the respective receiving chamber

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

an induction coil for heating a susceptor material provided in the device or in the consumable

Methodology Applied
Scientific EffectInduction heating: Induction Heating

Data Source

PatentEP3595464B1Aerosol-generating device and aerosol-generating system
Publication Date: 2022.11.16 PHILIP MORRIS PRODUCTS SA
  • EP3595464B1 patent drawingFigure 1~5
  • EP3595464B1 patent drawingFigure 6~11
  • EP3595464B1 patent drawingFigure 12~16

AI summary

Aerosol-generating system comprising an aerosol-generating device and at least two consumables comprising an aerosol-forming substrate, the device comprising a device housing (1) comprising at least two receiving chambers (10, 11, 12), wherein each of the at least two consumables (31, 32, 33) is accommodated in one of the at least two receiving chambers (10, 11, 12); the system further comprising at least two mouthpieces (21, 22, 23), wherein each of the at least two mouthpieces (21, 22, 23) is aligned with one of the at least two consumables (10, 11, 12) and wherein an airflow into and out of each of the at least two mouthpieces (21, 22, 23) is kept separate from the airflow into and out of each of the other of the at least two mouthpieces (21, 22, 23).