Spray Head Jet Collision Layout for Finer Droplet Dispersion
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Solution Overview
Problem
Conventional fluid dispenser heads rely on uniform droplet size generation through spray holes, lacking a mechanism for further dispersing droplets beyond the spray wall, which limits the fineness and distribution of the spray.
Innovation Solution
A fluid dispenser head with a spray wall perforated by holes whose axes intersect, causing jets of fluid to collide and divide into even finer droplets, with the arrangement and diameter of holes optimized for specific spray patterns and angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a spray wall with uniform holes is used, then uniform droplet size is generated, but droplet dispersion beyond the spray wall is limited
Solution Approach 1:
The spray wall is segmented into multiple zones with different hole patterns (concentric circles with different diameters and orientations). Each zone generates jets that collide at specific focal points, creating progressively finer droplet dispersion while maintaining uniformity within each zone.
Solution Approach 2:
The invention adds a spatial dimension to droplet dispersion by arranging holes in three-dimensional space with intersecting axes. Jets from different zones collide at focal points along the central axis, transforming the dispersion process from a two-dimensional spray pattern to a three-dimensional focal collision system.
2Shape
If holes are arranged in concentric circles with tangential orientation, then a swirl spray is created, but the spray angle and focal distribution are limited
Solution Approach 1:
Different zones of the spray wall have different hole characteristics (radius, orientation, angle) optimized for their specific function. The first zone creates initial swirl spray, while subsequent zones refine the pattern and create focal points at specific distances, allowing localized optimization of spray qualities.
Solution Approach 2:
The invention varies multiple parameters across different zones: hole radius (decreasing from outer to inner zones), orientation angles (tangential to radial transitions), and inclination angles. These parameter changes enable control over spray angle, focal distance, and droplet distribution without changing the fundamental swirl spray mechanism.
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 a more efficient dispersion of finer droplets, achieving a wider spray angle or focal point, depending on hole configuration, enhancing the spray's distribution and effectiveness in perfumery, cosmetics, and pharmacy applications.
Implementation Method 1
the spray wall (1) is perforated with holes through which the fluid under pressure passes so as to form jets of fluid
Implementation Method 2
the jets of fluid that extend along the intersecting axes meet at at least one collision point. Thus, the dispersion of the fluid also results from the jets colliding
Data Source
AI summary
A fluid dispenser head including a spray wall (1) that defines a central axis (X) and that is perforated with holes (O1, O2) through which the fluid under pressure passes so as to form jets of fluid, the holes (O1, O2) extend along axes (Y1, Y2) that correspond to the path of the jets of fluid;the dispenser head being characterized in that at least some of the axes (Y1, Y2) intersect, such that the jets of fluid that extend along the intersecting axes (Y1, Y2) meet at at least one collision point (P).