Rotary Airflow Regulator Torque Control for Vapour Dosage
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Solution Overview
Problem
Existing vapour generating devices lack effective mechanisms to regulate the dosage of active components, such as nicotine, inhaled by a user during a single puff, as they rely on uncontrolled airflow and heating methods that may burn the substance.
Innovation Solution
A portable vapour generating device with a rotary airflow regulator and a rotational biasing member, such as a spirally wound torsion spring, that applies a torque to prevent excessive airflow and occludes the passage when a threshold torque is exceeded, allowing controlled airflow and dosage regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a rotary airflow regulator is allowed to rotate freely during user inhalation, then the airflow passage remains open and vapour can be delivered to the user, but the dosage of active component inhaled cannot be regulated or controlled
Solution Approach 1:
The patent applies parameter changes by using a rotational biasing member (such as a torsion spring) to apply a torque that prevents rotation of the rotary airflow regulator beyond a threshold value. This mechanical parameter control (rotation angle) directly regulates the quantity of vapour and active component delivered to the user during a single inhalation, transforming an uncontrolled parameter into a controlled one.
2Productivity
If the vaporizing unit heats the vapour generating substance to a high temperature to generate sufficient vapour, then the vapour generation is effective, but the vapour generating substance may be burned instead of vaporized
Solution Approach 1:
The patent controls the temperature parameter by using a rotational biasing member to limit the airflow regulator rotation, thereby controlling the amount of air and vapour generated. This prevents excessive heating that would cause burning, while maintaining sufficient heat for effective vapourization within the controlled airflow parameters.
3Quantity of substance
If the rotary airflow regulator is prevented from rotating beyond a threshold, then the dosage of vapour inhaled is controlled, but the airflow passage is occluded and further inhalation is prevented
Solution Approach 1:
The patent implements periodic action through the rotational biasing member that allows rotation during inhalation up to a threshold, then prevents further rotation to control dosage. The system naturally resets when the user releases inhalation pressure, allowing the regulator to return to its initial position for the next puff, creating a periodic control cycle that manages vapour delivery in discrete controlled doses.
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 effectively regulates the airflow and dosage of vapour or aerosol inhaled by a user, preventing excessive inhalation and ensuring consistent delivery through a mechanical mechanism that automatically resets, thus addressing the need for controlled nicotine intake.
Implementation Method 1
a rotational biasing member configured to apply a torque to the rotary airflow regulator in a second direction opposite to the first direction
Implementation Method 2
The rotational biasing member may, for example, be a spirally wound torsion spring
Data Source
AI summary
A vapour generating device includes an air inlet, a vapour outlet, an airflow passage extending between the air inlet and the vapour outlet, and a vaporizing unit for vaporizing a vapour generating substance for delivery to a user through the airflow passage via the vapour outlet. The vapour generating device includes a rotary airflow regulator and a rotational biasing member. The rotary airflow regulator is positioned in the airflow passage and configured for rotation in a first direction by an airflow through the airflow passage from the air inlet to the vapour outlet resulting from a user inhalation. The rotational biasing member is configured to apply a torque to the rotary airflow regulator in a second direction opposite to the first direction, and is configured to prevent rotation of the rotary airflow regulator in the first direction when the applied torque exceeds a threshold value corresponding to the user inhalation.