Bag-on-Valve Dispenser with Reducer Insert for Aerosolization
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Solution Overview
Problem
Current bag-on-valve (BOV) technology using aerial gases faces challenges in achieving complete emptying of the bag and efficient aerosolization due to pressure drop and limited gas storage without refrigeration.
Innovation Solution
A dispenser design that uses a valve assembly with a dividing boss and a reducer insert to control the flow rates of the aerial carrier gas and the ingredient, ensuring substantial atomization and aerosolization by matching container volumes, gas pressure, and tube/orifice diameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If compressed air is used to squeeze the bag and release contents, then the dispensing system is simple and cost-effective, but the discharge is not aerosolized and atomized
Solution Approach 1:
The system separates the ingredient dispensing function from the aerosolization function. The bag-on-valve assembly handles ingredient release while a separate aerosolization chamber with compressed air injection handles the aerosol formation, allowing each component to be optimized independently
Solution Approach 2:
Compressed air acts as an intermediary substance that transfers energy from the motor driver to the ingredient droplets. The compressed air stream picks up the dispensed ingredient and carries it through the aerosolization chamber to create the desired aerosol plume
2Quantity of substance
If activated carbon is added to enhance gas storage volume, then the contents of normal sized pouches can be discharged in full, but the cost increases
Solution Approach 1:
The system changes the physical parameters of the compressed air (pressure, temperature, flow rate) to optimize its storage capacity and dispensing efficiency. By controlling these parameters, the system achieves complete pouch discharge without requiring activated carbon
Solution Approach 2:
The system uses a motor driver to dynamically control the compressed air delivery, adjusting pressure and flow rate in real-time to match the dispensing requirements. This dynamic control allows efficient use of compressed air storage without additional cost-effective materials
3Stability of the object's composition
If the pressure of the system falls as liquid level diminishes, then the compressed gas occupies larger volume, but the complete emptying of the bag is precluded
Solution Approach 1:
The system incorporates feedback control through the motor driver that monitors pressure changes and adjusts the compressed air delivery accordingly. As the bag empties and pressure drops, the system compensates by adjusting the air flow to maintain effective dispensing until complete emptying is achieved
Solution Approach 2:
The system pre-charges the compressed air storage to high pressure before dispensing begins. This preliminary action ensures sufficient pressure head is available to drive complete emptying of the bag, overcoming the pressure drop that occurs as liquid level diminishes
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 solution enables substantial emptying of ingredients and delivers them in a substantially dry plume, achieving effective aerosolization and improving customer perception by ensuring a consistent and efficient dispensing process.
Implementation Method 1
a reducer insert (300) which manages respective flow rates of the dispensing aerial carrier gas and ingredient
Implementation Method 2
allowing the ingredient and dispensing aerial carrier gas to mix within a mixing chamber (280) of an actuator assembly (15) such that substantial atomisation or aerosolization of the ingredient occurs on discharge
Implementation Method 3
The exiting gas and liquid ingredient mix in mixing chamber (280) before exiting at nozzle (220). The high velocity gas stream vaporizes and atomizes the liquid ingredient to produce a 'dry' plume
Data Source
AI summary
A dispenser may include a dispenser container filled with a dispensing aerial carrier gas fitted with a valve assembly. The valve assembly may include a mounting cup, at least one gasket, a valve seat, a spring, a housing, and a dividing boss including a first fitment and a second fitment. The dispenser container may be absent of an adsorbent. The dispenser may be partially filled with an ingredient for dispensing and/or the ingredient for dispensing may be contained in an ingredient containing reservoir. The first fitment, along which the ingredient is carried, may be connected to at least one of a dip tube and a tube and ingredient containing reservoir. On actuation, the ingredient may travel out via the first fitment and the dispensing aerial carrier gas may travel out via the second fitment via a reducer insert which manages respective flow rates of the dispensing aerial carrier gas.