Compact Fluidic Spa Nozzle Molded Inertance Loop
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Solution Overview
Problem
Existing fluidic spa nozzles are not compact enough and require multiple parts for assembly, which complicates the construction and efficiency of the fluidic oscillator mechanism.
Innovation Solution
A compact fluidic spa nozzle design featuring a molded inertance loop wound in a spiral-like configuration around the control ports, with a reduced number of parts and a phased weld profile for secure assembly, and an air chamber system for efficient air entrainment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional fluidic spa nozzles are designed with multiple parts for assembly, then the construction and assembly process becomes complex, but the device complexity increases and assembly efficiency decreases
Solution Approach 1:
The patent combines multiple separate components (inertance loop, control ports, seal plate, housing) into a single molded piece. The inertance loop is integrated directly into the housing with control ports formed as cavities within the same structure, eliminating the need for separate assembly of these components and reducing the total part count while maintaining functional complexity
2Volume of moving object
If the inertance loop is designed in a transverse plane configuration, then the device becomes more compact, but the manufacturing precision requirements increase
Solution Approach 1:
The inertance loop is configured in a transverse plane rather than extending axially, changing the spatial dimension of the component layout. This planar configuration allows the loop to fit within a compact volume while the molding process integrates all features in a single operation, managing precision requirements through process selection
3Volume of moving object
If the inertance loop is wound in a spiral-like configuration, then the device achieves maximum compactness, but the manufacturing complexity increases
Solution Approach 1:
The spiral configuration of the inertance loop is formed automatically through the molding process itself, where the material is deposited in a spiral pattern that self-organizes into the required geometry. This eliminates the need for separate forming operations or complex tooling, allowing the compact spiral design to be manufactured efficiently in a single molding operation
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 compact design enhances assembly efficiency, reduces part count, and improves the fan angle for maximum feel at close distances, providing a more effective and streamlined fluidic oscillator mechanism.
Implementation Method 1
an inertance loop connecting the control ports to each other
Implementation Method 2
an air chamber system for efficient air entrainment
Data Source
AI summary
A compact, molded liquid oscillator nozzle having a longitudinal axis and a power nozzle, an interaction region having diverging sidewalls, top and bottom walls, and a pair of control ports at opposing sides of the interaction region, and an inertance loop connecting the control ports, characterized in that the inertance loop is molded in a plane that is transverse to the longitudinal axis.