Fluid Product Dispensing Head with Intersecting Jets for Finer Droplets
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Solution Overview
Problem
Existing fluid product dispensing heads primarily rely on the passage of fluid through spray walls with uniformly sized holes to create fine droplets, lacking a mechanism for further dispersion beyond the initial jet formation.
Innovation Solution
A dispensing head design featuring a spray wall with intersecting holes along specific axes, causing jets to collide and form finer droplets through impact, utilizing a radial arrangement of holes, potentially in concentric circles, to enhance dispersion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a spray wall with uniformly sized holes is used to create fine droplets, then droplet size homogeneity is improved, but droplet dispersion is insufficient
Solution Approach 1:
The spray wall features holes with different orientations and intersecting axes rather than uniform parallel holes. This asymmetric arrangement causes jets to collide at specific points, transforming the symmetric uniform spray into an asymmetric pattern with enhanced dispersion through collision-induced droplet fragmentation.
Solution Approach 2:
The intersecting jet trajectories, which could be considered a deviation from uniform spray, are intentionally designed to create collision points. These collision points transform the potential harm of jet interference into a beneficial effect by further dividing droplets and enhancing dispersion beyond what uniform holes alone could achieve.
2Object-generated harmful factors
If holes are arranged in intersecting axes to create collision points, then droplet dispersion is enhanced, but manufacturing complexity increases
Solution Approach 1:
The spray wall is designed with a curved or conical geometry rather than a flat surface. This curvature naturally causes holes drilled perpendicular to the wall surface to have intersecting axes, creating collision points without requiring complex non-perpendicular drilling operations. The curved surface simplifies manufacturing while achieving the desired jet intersection.
Solution Approach 2:
The hole orientation parameters are changed from uniform parallel axes to intersecting axes with specific angles. By carefully selecting the intersection angles and collision point locations, the design achieves enhanced dispersion while maintaining manufacturability through systematic parameter optimization rather than arbitrary complex arrangements.
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 collision of jets results in even finer droplets, optimizing dispersion and spray characteristics by leveraging the collision points to divide droplets further, enhancing the spray pattern and efficiency.
Implementation Method 1
a spray wall defining a central axis and pierced with holes through which the pressurized fluid product passes so as to form jets of fluid product
Implementation Method 2
The collision of jets results in even finer droplets, optimizing dispersion and spray characteristics by leveraging the collision points to divide droplets further
Implementation Method 3
the axes of the holes being intersecting, so that the jets of fluid product, which extend along these intersecting axes, meet at at least one collision point
Data Source
Figure 1~3
Figure 4~7
AI summary
The invention relates to a fluid product dispensing head, comprising a spray wall (1) which defines a central axis (X) and is pierced with holes (O1, O2), through which the pressurized fluid product passes so as to form jets of fluid product, the holes (O1, O2) extending along axes (Y1, Y2) which correspond to the trajectory of the jets of fluid product. The invention is characterized in that at least some of the axes (Y1, Y2) are secant, so that the jets of fluid product, which extend along these secant axes (Y1, Y2), meet at at least one collision point (P).