Pneumatic Component for Constant Gas Diffusion
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Solution Overview
Problem
Existing aerosol containers fail to maintain a constant gas flow rate due to internal pressure variations, requiring manual intervention and complex devices to regulate gas flow effectively, especially for continuous applications like scent diffusion or ethylene stimulation for rubber trees.
Innovation Solution
A pneumatic component that attaches to aerosol containers, featuring a hollow body with a leaktight shutter and fastening system, allowing for controlled gas flow regulation without modifying the existing valve, using a combination of spring and gas pressure to maintain a constant outflow rate through a calibrated orifice.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional aerosol valve is used, then the device is simple, but the gas flow rate varies with internal pressure and cannot be kept constant
Solution Approach 1:
The patent introduces an intermediary pressure-regulating device between the aerosol container valve and the external environment. This intermediary component includes a pressure chamber, a flexible membrane, and a regulating valve that mediates the pressure variations from the aerosol container to maintain constant gas flow rate, resolving the contradiction between flow rate stability and device simplicity.
Solution Approach 2:
The patent changes the pressure parameter through a pressure-regulating mechanism. A flexible membrane responds to pressure variations in the aerosol container, automatically adjusting the opening of a regulating valve to maintain constant downstream pressure and thus constant gas flow rate, addressing the issue of variable flow rate while adding minimal complexity.
2Reliability
If a regulator is added to maintain constant gas flow rate, then the flow rate stability is improved, but the device complexity increases
Solution Approach 1:
The patent implements a self-service pressure regulation system where the flexible membrane automatically detects pressure changes and actuates the regulating valve without external intervention. The system self-adjusts to maintain constant gas flow rate, reducing the need for complex control mechanisms and manual operation while improving flow rate stability.
Solution Approach 2:
The patent incorporates a feedback mechanism through the flexible membrane that continuously monitors pressure changes in the pressure chamber and automatically adjusts the regulating valve opening accordingly. This closed-loop feedback system maintains stable gas flow rate while keeping the device structure relatively simple compared to electronic control systems.
3Productivity
If manual pressing is required to control gas release, then the device is simple, but continuous diffusion cannot be achieved
Solution Approach 1:
The patent enables continuous useful action by maintaining a constantly open regulating valve that allows continuous gas diffusion from the aerosol container. The pressure-regulating mechanism ensures steady flow without requiring intermittent manual pressing, thus achieving continuous diffusion while maintaining operational simplicity through automatic pressure balance.
4Ease of manufacture
If existing valve is used without modification, then manufacturing cost is low, but flow rate regulation capability is insufficient
Solution Approach 1:
The patent segments the gas flow control system into two independent parts: the existing aerosol container valve (unchanged) and a separate pressure-regulating device. This segmentation allows the use of inexpensive, mass-produced aerosol valves while adding a dedicated regulation component, thereby maintaining low manufacturing costs while improving flow rate control capability.
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 continuous, constant gas diffusion without manual actuation, reducing manufacturing costs and complexity, and is suitable for applications requiring low, constant gas flow rates, such as analyzer calibration and scent dispensing.
Implementation Method 1
using a combination of spring and gas pressure to maintain a constant outflow rate through a calibrated orifice
Implementation Method 2
using a combination of spring and gas pressure to maintain a constant outflow rate through a calibrated orifice
Implementation Method 3
Pneumatic component for the controlled micro-diffusion of gas
Data Source
AI summary
A pneumatic component for the controlled micro-diffusion of gas, intended to be fastened to a pressurized gas reservoir having an aerosol valve. The pneumatic component includes a hollow body whose inner portion has at least one upper chamber enclosed by a leaktight, moving shutter, and a fastening system designed to cooperate in a leaktight manner with the upper part of the container. At least one lower chamber of the pneumatic component is formed, once the component has been fastened to the container, between the shutter and the upper part of the container. The shutter bears against the valve, and a lateral orifice in communication with the lower chamber is designed to expel gases from the container to the outside of the pneumatic component.