Particulate Sprayer Using Venturi Gas Flow to Prevent Nozzle Clogging
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Solution Overview
Problem
Conventional sprayers are unable to effectively spray liquid products containing solid materials without clogging the filter or nozzle, rendering them inoperable.
Innovation Solution
A particulate sprayer design that includes a gas reservoir, a liquid reservoir, and a low-pressure section with an exit opening, where gas is released to create a spray by interacting with the liquid, drawing or pushing it into the gas stream, eliminating the need for filters or nozzles and allowing for the efficient spraying of products with both liquid and solid particles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional sprayers use filters or nozzles to create spray, then spray quality is improved, but solid particles clog the filter or nozzle rendering the sprayer inoperable
Solution Approach 1:
The invention removes the filter and nozzle components from the sprayer system entirely. Instead of using conventional filtration and orifice-based spray mechanisms that are prone to clogging, the patent employs a venturi-based aerosol generation system where liquid is drawn into a gas stream through a venturi effect, eliminating the clogging problem while maintaining spray quality
Solution Approach 2:
The invention uses pneumatic principles by introducing a gas stream through a venturi tube to create negative pressure that draws liquid up through a dip tube. The liquid is then atomized by the high-velocity gas stream, creating an aerosol spray without requiring mechanical nozzles or filters that could clog with solid particles
2Stress or pressure
If conventional sprayers use pumps or compressed gas to expel liquid, then spray pressure is improved, but the system becomes complex and cannot handle products with solid materials
Solution Approach 1:
The invention uses the venturi effect where a gas stream flowing through a constricted section creates a pressure differential that automatically draws liquid up and atomizes it. This pneumatic mechanism eliminates the need for mechanical pumps while maintaining effective spray pressure
Solution Approach 2:
The invention changes the operating parameters by using gas flow rate and venturi geometry to control spray pressure and atomization, replacing mechanical pressure generation with fluid dynamic parameters that are simpler to control and maintain
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 effective spraying of products with solid particles without clogging issues, providing a spray pattern and range suitable for various applications, including food products and lawn care, while maintaining a clean shut-off and preventing dribbling.
Implementation Method 1
a low pressure or high velocity or Venturi or mixing section (hereinafter 'low pressure section') including an exit opening connecting it to the liquid reservoir. The low pressure section can transport gas released from the gas reservoir over or across the exit opening to create a spray of the product
Implementation Method 2
The gas can draw liquid up from the liquid reservoir or the liquid could be pushed up, with the gas creating the spray from the liquid pushed into its path
Data Source
AI summary
A particulate sprayer includes a gas reservoir to hold a gas, a liquid reservoir to hold a product, and a low pressure section including an exit opening connected to the liquid reservoir. The product includes a liquid and solid particles. The low pressure section transports gas released from the gas reservoir over the exit opening. The product is drawn, pushed, or drawn and pushed from the exit opening into the transported gas to create a spray of the product to be sprayed from the particulate sprayer.