Multi-Stream Hollow-Cone Nozzle for Flexible Spray Geometry
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Solution Overview
Problem
The design of nozzle bodies is limited by the constraints of injection molding and 3D printing processes, restricting the geometries that can be produced and consequently the characteristics of the spray mist generated, such as limited diameter and complexity of geometries like undercuts.
Innovation Solution
A nozzle body with multiple hollow-cone nozzle geometries, including asymmetrical designs and small nozzle bores, produced using thermoplastic materials via injection molding or 3D printing, and further refined by laser processing techniques like laser ablation or drilling, allowing for greater design freedom and flexibility in spray mist generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If injection molding or 3D printing processes are used to produce nozzle bodies, then manufacturing efficiency and geometric flexibility are improved, but the design freedom and complexity of geometries (such as undercuts and small diameters) are limited
Solution Approach 1:
The nozzle body is divided into multiple hollow-cone nozzle geometries (at least two), each capable of generating independent spray cones. This segmentation allows complex spray patterns to be achieved by combining multiple simpler nozzle structures, overcoming the geometric limitations of single-nozzle designs while remaining compatible with injection molding and 3D printing processes.
Solution Approach 2:
The patent employs asymmetrical hollow-cone nozzle geometries where the nozzle bore is arranged eccentrically relative to the turbulence chamber, rather than being centrally positioned. This asymmetrical arrangement enables targeted control of spray mist characteristics and allows for geometries that would be difficult to achieve with symmetrical designs constrained by traditional manufacturing methods.
2Adaptability or versatility
If multiple hollow-cone nozzle geometries are used to generate spray mist, then spray pattern flexibility and droplet surface area are improved, but device complexity increases
Solution Approach 1:
Multiple hollow-cone nozzle geometries are integrated into a single nozzle body structure, with their spray cones arranged to overlap and combine. This merging approach creates a voluminous, full spray mist with enhanced droplet surface area while maintaining a unified device structure that does not proportionally increase overall complexity.
Solution Approach 2:
The patent utilizes spatial arrangement and orientation of multiple nozzle geometries in three-dimensional space, with nozzles positioned at different angles and locations. This dimensional approach allows complex spray patterns to be achieved through spatial configuration rather than through intrinsically complex single-nozzle geometries.
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
Enables the creation of a voluminous, full spray mist with a larger surface area and adaptable spray pattern, reducing actuating force and allowing for precise control of spray characteristics, while overcoming the limitations of traditional manufacturing methods.
Implementation Method 1
In the turbulence chamber, a fluid that is to be atomized is set in rotation so that the fluid passes out of the nozzle body through the nozzle bore, thereby generating a spray cone
Implementation Method 2
at least partially created by laser processing, in particular created by laser ablation, laser drilling, and/or 3D laser ablation
Data Source
AI summary
A nozzle body and a method of forming the nozzle body. The nozzle body includes at least two hollow-cone nozzle geometries. The nozzle body includes an injection molded or a 3D printed thermoplastic material.