Fluidic Oscillator Nozzle Layout for 3D Atomized Spray
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Solution Overview
Problem
Current atomizers produce a spray that is mainly two-dimensional with limited spray in the third dimension, necessitating a device that can generate an atomized output in all three dimensions for a wider spray angle.
Innovation Solution
A feedback type fluidic oscillator device with at least two fluidic oscillators, each comprising an interaction chamber, fluid supply inlet, outlet nozzle, and feedback channels, where the feedback channels of each oscillator are in fluid communication, causing the fluid streams to oscillate in phase and collide, resulting in a wider spray pattern.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If current atomizers with at least two fluid streams are used, then atomization is achieved, but the spray is directed mainly along the collision point and is nearly two-dimensional with very little spray in the third dimension
Solution Approach 1:
The patent introduces a second fluid stream perpendicular to the first fluid stream, transforming the spray from a two-dimensional pattern to a three-dimensional pattern. The first fluid stream exits horizontally while the second fluid stream exits vertically, creating collision points in multiple dimensions and generating a conical spray pattern that provides comprehensive three-dimensional coverage.
2Quantity of substance
If fluid streams are made to collide for atomization, then fine particles are generated, but the spray angle remains limited
Solution Approach 1:
By adding the vertical second fluid stream to the horizontal first fluid stream, the collision occurs in three-dimensional space rather than a single plane. This multi-dimensional collision approach widens the spray angle and expands the spray pattern from a narrow two-dimensional sheet to a broad three-dimensional conical distribution.
Solution Approach 2:
The atomization process is segmented into multiple collision zones by introducing separate first and second fluid streams that collide at different locations and angles. The first collision zone generates particles along the horizontal axis while the second collision zone generates particles along the vertical axis, creating a segmented multi-zone atomization process that expands the overall spray angle.
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 device achieves a wider spray angle by synchronizing the oscillations of multiple fluid streams, ensuring continuous atomization and collision, enhancing the spray's three-dimensional coverage.
Implementation Method 1
The first attachment wall and second attachment wall of the interaction chamber are shaped to allow fluid from the fluid stream to flow into the first ends of the first feedback channel and second feedback channel, respectively, causing the fluid stream to oscillate between the first attachment wall and second attachment wall of the interaction chamber.
Implementation Method 2
The outlet nozzle of the first fluidic oscillator and the outlet nozzle of the second fluidic oscillator are structured such that the fluid streams exiting the outlet nozzle of the first fluidic oscillator and the outlet nozzle of the second fluidic oscillator collide with each other.
Data Source
AI summary
Various implementations include a feedback type and jet interaction-type fluidic oscillator devices with atomized output. The device includes first and second fluidic oscillators. Each of the first and second fluidic oscillators include an interaction chamber, a fluid supply inlet, an outlet nozzle, and first and second feedback channels. The first feedback channel of the first fluidic oscillator share a common intermediate portion such that the first feedback channels are in fluid communication with each other, causing the fluid streams exiting the outlet nozzles of the first fluidic oscillator and second fluidic oscillator to oscillate in phase with each other. The outlet nozzle of the first fluidic oscillator and the outlet nozzle of the second fluidic oscillator are structured such that the fluid streams exiting the outlet nozzle of the first fluidic oscillator and the outlet nozzle of the second fluidic oscillator collide with each other, creating an atomized spray.