Spray Wall Hole Segmentation for Dual-Distribution Fluid Dispensing
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Solution Overview
Problem
Conventional fluid dispenser heads produce sprays with uniform droplet sizes, which are inadequate for achieving multiple specific functions in perfumery and inhalation applications, as they either fail to provide tactile or olfactory perceptions effectively.
Innovation Solution
A fluid dispenser head with a spray wall featuring a network of holes arranged in distinct series, generating two or more separate and distinct Gaussian distributions of droplet sizes, allowing for a complex droplet size distribution that enhances both tactile and olfactory perceptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a spray wall with uniform holes is used, then the droplet size distribution is uniform, but the device cannot perform multiple specific functions (tactile and olfactory perceptions)
Solution Approach 1:
The spray wall is segmented into multiple series of holes with different diameters (e.g., first series with 20μm holes, second series with 40μm holes). Each series produces a distinct Gaussian distribution of droplet sizes, enabling the device to perform multiple functions simultaneously - smaller droplets for olfactory perception and larger droplets for tactile perception.
Solution Approach 2:
Different regions of the spray wall are assigned different hole diameters to create localized variations in droplet size. The spray wall contains multiple series of holes with specific diameters arranged in distinct patterns, allowing each region to contribute differently to the overall spray function - some regions produce fine mist for scent dispersion while others produce larger droplets for skin deposition.
2Adaptability or versatility
If a single Gaussian distribution of droplet sizes is produced, then the spray is uniform, but it cannot effectively target multiple areas (skin and respiratory segments)
Solution Approach 1:
The hole arrangement is segmented into multiple series, where each series produces a specific Gaussian distribution centered on a particular droplet size. The first series produces droplets centered around 20μm for respiratory targeting, while the second series produces droplets centered around 40μm for skin deposition, enabling multi-target capability without complex external systems.
Solution Approach 2:
The spray wall is designed as a universal component that simultaneously performs multiple functions through its multi-series hole configuration. A single spray wall structure generates both fine droplets for inhalation therapy and larger droplets for cutaneous application, making the device capable of treating multiple targets (oral cavity, pharynx, larynx, trachea, lungs, and skin) without requiring separate dispensing systems.
3Adaptability or versatility
If conventional swirl systems are used, then the spray covers average targets, but it fails to provide distinct tactile and olfactory perceptions required in perfumery
Solution Approach 1:
The spray wall is divided into multiple series of holes with precisely controlled different diameters. The first series has holes of a first diameter producing a first Gaussian distribution centered on smaller droplets for olfactory perception, while the second series has holes of a second diameter producing a second Gaussian distribution centered on larger droplets for tactile perception. This segmentation enables distinct sensory perceptions that conventional uniform holes cannot achieve.
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 complex droplet size distribution enables the dispenser to perform multiple functions by ensuring smaller droplets evaporate quickly for olfactory perception and larger droplets provide wetness, effectively targeting different areas such as skin and respiratory segments.
Implementation Method 1
smaller droplets evaporate quickly for olfactory perception and larger droplets provide wetness
Data Source
AI summary
A fluid dispenser head (T) including a spray wall (26) that is perforated with a network of holes (O) through which the fluid under pressure passes so as to be sprayed in small droplets;the dispenser head being characterized in that the network of holes (O) comprises at least two series of holes (O), with the holes (O) of a given series presenting holes that are substantially identical in size, and with the holes (O) of different series presenting holes that are different in size, such that one series of holes (O) generates a spray of small droplets with droplet sizes that define a first Gaussian distribution, while another series of holes (O) generates a spray of small droplets with droplet sizes that define a second Gaussian distribution that is offset relative to the first Gaussian distribution, thus producing a complex spray having at least two distinct Gaussian distributions.