Dual Spray Nozzle Tip Assembly for Uniform Flow Control
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Solution Overview
Problem
Conventional air/water syringe tips provide turbulent flow with irregular fluctuations, resulting in limited surface coverage and significant splatter and aerosol formation, lacking effective flow control for various applications including dental, plumbing, medical, and grooming fields.
Innovation Solution
A dual spray nozzle tip assembly with a geometry split into sub-components, featuring an elongated body with separate fluid and gas lumens, a shear nozzle, and a recessed fluid outlet, allowing for uniform flow control and reduced aerosol formation through precise alignment and welding of transmissive and absorptive material halves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional air/water syringe tip geometry is used, then the device is simple to manufacture, but the flow control is poor resulting in turbulent flow with irregular fluctuations
Solution Approach 1:
The nozzle tip is divided into multiple separate components including a body portion, a nozzle portion, and a cap portion that can be manufactured independently and then assembled. This segmentation allows each component to be optimized for its specific function while maintaining manufacturing simplicity, resolving the contradiction between flow control precision and device complexity.
Solution Approach 2:
The invention introduces a vertical dimension to flow control by creating a multi-layered nozzle structure with upper and lower nozzle portions that spray in different directions. This dimensional approach enables uniform flow distribution across multiple planes, achieving superior flow control uniformity without significantly increasing overall device complexity.
2Area of stationary object
If conventional nozzle geometry is used, then the device structure is simple, but the surface area coverage is narrow
Solution Approach 1:
The nozzle is segmented into multiple spray outlets distributed across different surfaces of the nozzle body. This includes upper nozzle portions spraying upward and lower nozzle portions spraying downward, effectively increasing the total surface area coverage without requiring a single complex geometric structure.
Solution Approach 2:
The spray coverage is extended into the vertical dimension by positioning nozzle portions at different heights and orientations. This multi-level arrangement increases surface area coverage significantly compared to conventional single-plane nozzles, while the modular structure keeps device complexity manageable.
3Object-generated harmful factors
If conventional spray geometry is used, then the manufacturing process is simple, but splatter and aerosol formation are significant
Solution Approach 1:
The nozzle is divided into multiple small spray outlets rather than a single large opening. This segmentation distributes the fluid flow across multiple streams, reducing the velocity and energy of individual streams, thereby minimizing splatter and aerosol formation while maintaining effective cleaning coverage.
Solution Approach 2:
The spray pattern is distributed across multiple vertical levels with upper and lower nozzle portions. This vertical distribution creates a more controlled spray pattern that reduces horizontal splatter and aerosol generation, achieving reduced harmful factors without excessive geometric complexity.
4Adaptability or versatility
If pressure variance is used as the only adjustment mechanism, then the device is simple to operate, but the flow control is insufficient for various applications
Solution Approach 1:
The nozzle provides multiple independent spray outlets that can be activated at different pressure levels. This segmentation of spray functions allows the device to adapt to various applications (air-only, air-water, water-only) without requiring complex operational procedures, maintaining ease of use while increasing versatility.
Solution Approach 2:
The multi-level nozzle structure enables different spray patterns and coverage areas to be achieved through pressure adjustment alone. The vertical arrangement of spray outlets provides inherent flow control versatility for different applications, keeping the operation simple while greatly enhancing adaptability.
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 solution provides increased surface area coverage with reduced splatter and aerosol, achieving uniform flow control and improved cleaning performance across multiple applications.
Implementation Method 1
The first member may be joined to the second member by welding
Implementation Method 2
The at least one flat portion is configured to permit an energy source to pass through transmissive material in the first member to reach and achieve a welding joint between the first and second members
Implementation Method 3
The outlet region defines a shear nozzle in communication with the fluid lumen and at least one gas outlet in communication with the at least one gas lumen
Implementation Method 4
The handpiece may be configured to provide pressurized fluid, gas or both
Data Source
AI summary
Provided is a dual spray nozzle tip assembly having a geometry that is split into several sub components to enable robust manufacturing and assembly of the resulting nozzle. The nozzle tip assembly is configured to be attached to a device configured to provide a pressurized fluid and gas therefrom. The nozzle tip assembly comprising an elongated body defining a fluid lumen and at least one gas lumen between a distal end and a proximal end. The elongated body including at least an attachment profile, a straight portion, and an outlet region. The outlet region defines a shear nozzle in communication with the fluid lumen and at least one gas outlet in communication with the at least one gas lumen, the outlet region is configured to direct pressurized gas from the at least one gas outlet and to produce a desired spray pattern from the shear nozzle.