Wickless Vaporizer Flow Modulation to Prevent Flooding and Burnt Flavor

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Solution Overview

Problem

Existing vaporizing devices suffer from issues such as flooding, cooked or burnt flavor, flavor crossover, and short battery life due to wick configurations, and lack efficient flow control of liquid, leading to a poor user experience.

Innovation Solution

A wickless vaporizing device with a breath-modulated liquid flow control system, incorporating a valve and improved atomizer designs that utilize a flow modulator and a controller to regulate fluid flow based on user inhalation, eliminating the need for a wick and enhancing vaporization quality and efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a wick is used to transport liquid in existing vaporizing devices, then liquid flow is achieved through capillary action, but flooding, cooked or burnt flavor, flavor crossover, and short battery life occur due to poor flow control

Engineering Contradiction:
Improveliquid flow controlVSAvoidvaporization quality
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent removes the wick component entirely from the vaporizing device, replacing it with a wickless liquid delivery system that uses a controlled flow mechanism to transport liquid from the reservoir to the heating element, thereby eliminating the flooding and flavor degradation issues associated with wick-based systems

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the mechanical capillary action of the wick with an electronically controlled flow modulation system that uses a valve or pump mechanism to regulate liquid flow rates, providing precise control over liquid delivery to the heating element and preventing both flooding and dry heating conditions

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If a wick is used for liquid transport, then liquid delivery is passive, but the device lacks ability to modulate or control flow of liquid

Engineering Contradiction:
Improveflow modulation capabilityVSAvoidflow control system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a dynamic flow control system that actively modulates liquid flow rates in real-time based on user inhalation detection and device operational state, transitioning from passive wick-based delivery to an adaptive system that adjusts flow to match user demand and prevent flooding or dry conditions

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent incorporates feedback mechanisms including airflow sensors that detect user inhalation and microcontrollers that adjust valve or pump operation accordingly, creating a closed-loop control system that monitors and regulates liquid flow to optimize vaporization while preventing flooding and extending battery life

Inventive Principle:
Principle #23Feedback

3Duration of action of stationary object

If material builds up on heating components, then vaporization continues, but cooked or burnt flavor and poor user experience result

Engineering Contradiction:
Improvebattery lifeVSAvoidflavor degradation
Core Design Contradiction:
Duration of action of stationary objectVSObject-generated harmful factors

Solution Approach 1:

The patent implements periodic cleaning cycles where the heating element is heated to high temperatures to combust and remove accumulated material, alternating between normal vaporization operation and cleaning phases to maintain optimal vaporization performance and prevent burnt flavor throughout the battery life

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent uses precisely controlled liquid flow modulation to prevent material buildup in the first place by ensuring optimal liquid delivery rates that complete vaporization before excess material can accumulate on the heating element, thereby preventing cooked or burnt flavor from developing

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

The wickless design improves vaporization efficiency, provides high-quality vapor, and enhances user experience by modulating fluid flow effectively, reducing issues like flooding and flavor crossover while extending battery life.

Implementation Method 1

a heater arranged relative to the tube for heating at least a portion of the tube

Methodology Applied
Scientific EffectVaporization: Evaporation

Implementation Method 2

a heater arranged relative to the tube for heating at least a portion of the tube

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 3

an air flow detecting device for determining when a predetermined air flow rate exists proximate the first end of the tube

Methodology Applied
Scientific EffectAir flow detection:

Data Source

PatentEP3319466B1Wickless vaporizing devices and methods
Publication Date: 2025.08.13 JUUL LABS INC
  • EP3319466B1 patent drawingFigure 1
  • EP3319466B1 patent drawingFigure 2
  • EP3319466B1 patent drawingFigure 3

AI summary

Deformable valves and atomizer designs for a vaporizer (e.g., electronic cigarette). The vaporizer may be used for vaporization of liquid and/or organic material. The vaporizer may enable enhanced flow control of fluid and may generate high quality and quantity of vapor efficiently. In some instances, flow path of the vaporizer may allow bulk fluid flow, e.g., in contrast to capillary flow, to deliver fluid to a vicinity of the vaporizer. In some instances, the vaporizer may utilize improved atomizer designs for vaporizing devices, where said designs can be configured optionally, with various embodiments of a breath-modulating deformable valve.