Droplet Jet Device Nozzle Geometry Rectilinearity
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Solution Overview
Problem
Existing droplet jet devices struggle to produce droplets with high rectilinearity, especially when used in cleaning and cosmetic equipment, as they often result in foamed liquids due to air mixing, making it difficult to achieve a preferable droplet state.
Innovation Solution
A droplet jet device with a main body having a flow channel and a jet nozzle with specific nozzle hole configurations, where the number of nozzle holes (N), nozzle hole diameter (r), and contour length (L) or cross-sectional dimensions are optimized to satisfy specific mathematical formulas, ensuring the formation of droplets with high rectilinearity regardless of the flow channel's cross-sectional shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a bubble nozzle structure is used to spray liquid, then the liquid can be continuously ejected, but the liquid mixes with air to form foam, reducing droplet rectilinearity
Solution Approach 1:
The liquid flow is segmented into discrete droplets through the nozzle hole arrangement and flow channel design, allowing continuous ejection while maintaining droplet integrity and rectilinearity by preventing air mixing that causes foaming
Solution Approach 2:
The patent optimizes specific parameters including the ratio of nozzle hole diameter to flow channel dimensions, the arrangement pattern of nozzle holes, and flow velocity parameters to achieve the balance between continuous ejection and high droplet rectilinearity
2Productivity
If the liquid is sprayed as a continuous stream, then ejection is efficient, but droplet formation with high rectilinearity cannot be achieved
Solution Approach 1:
The continuous liquid flow is converted into periodic droplet ejections through the optimized nozzle hole configuration and flow channel design, creating a rhythmic spray pattern that maintains both efficiency and high droplet rectilinearity
Solution Approach 2:
The patent replaces complex mechanical droplet generation mechanisms with a streamlined flow channel and nozzle hole configuration that naturally produces high-quality droplets through fluid dynamics principles, improving both efficiency and droplet quality
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 optimized configuration allows for the efficient spraying of liquids in a preferable droplet state, ensuring high rectilinearity and uniformity of droplet size, even when used with various liquids and temperature ranges, enhancing the performance of cleaning and cosmetic applications.
Implementation Method 1
a droplet jet device configured to form a liquid into droplets to jet the droplets
Implementation Method 2
a jet nozzle having at least one nozzle hole, in which the following formula is fulfilled: 0.0065＜L2/(N2·r3)＜0.025
Data Source
AI summary
A droplet jet device configured to form a liquid into droplets to jet the droplets, the droplet jet device including a main body having a flow channel through which the liquid circulates, and a jet nozzle having at least one nozzle hole and spraying the liquid from the nozzle hole, wherein defining the number of the nozzle holes as N, a diameter of the nozzle hole as r [m], and a contour length of a cross-sectional surface of the flow channel as L [m], the following formula is fulfilled.0.188<1N2·L2r3<1.58×1016