Rotating Spray Tip With Turbulent Pre-Orifice
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Solution Overview
Problem
Existing fluid spraying systems typically operate at high pressures, which leads to premature wear of components and limits the lifespan of pumps and other equipment, while also restricting the ability to create varied spray patterns.
Innovation Solution
A spray tip design that includes a body portion with a handle for rotation, a retainer, a pre-orifice piece, and a tip piece, forming a turbulating chamber that imparts turbulence to the fluid, allowing for operation at lower pressures and adjustable spray patterns through the pre-orifice piece's varying dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If high pressure is used in fluid spraying systems, then spray pattern coverage is improved, but component wear increases and lifespan decreases
Solution Approach 1:
The spray tip is divided into multiple functional segments: a retainer with a retainer passage, a pre-orifice piece with a pre-orifice, and a tip piece with an outlet nozzle. Each segment performs a specific function in the fluid flow path, allowing the system to achieve spray pattern coverage through controlled fluid shearing and turbulence rather than high pressure alone.
Solution Approach 2:
The invention changes the operational parameters by using lower pressures combined with specific geometric parameters (aperture shapes and sizes) to achieve the desired spray pattern. The pre-orifice piece and tip piece are designed with specific dimensions and shapes that create turbulence and shearing effects, allowing effective spraying at reduced pressures that protect components from wear.
2Speed
If high pressure is used in fluid spraying systems, then spray penetration is improved, but energy consumption increases
Solution Approach 1:
The pre-orifice piece and tip piece are designed to create turbulence and vibration effects in the fluid flow. The geometry of the passages and outlets generates controlled chaos and mixing in the fluid, which enhances spray penetration and atomization without requiring high pressure input, thereby reducing energy consumption.
Solution Approach 2:
The system changes the energy utilization parameters by converting pressure energy into kinetic energy and turbulence through the designed geometry of the retainer passage, pre-orifice, and outlet nozzle. This allows the fluid to gain penetration capability through controlled flow patterns rather than raw pressure, reducing overall energy consumption.
3Ease of manufacture
If fixed aperture size is used in spray tip, then manufacturing simplicity is maintained, but spray pattern versatility is limited
Solution Approach 1:
The spray tip design incorporates adjustable elements that allow the aperture characteristics to be modified for different applications. The pre-orifice piece and tip piece can be configured with varying dimensions and shapes to create different spray patterns, enabling the same basic structure to adapt to multiple spraying requirements while maintaining relatively simple manufacturing processes.
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 fluid spraying systems to operate at lower pressures, extending the life of components and enabling the creation of even, adjustable spray fan patterns by shearing the fluid with turbulence, thus accommodating different applications and fluid types.
Implementation Method 1
The pre-orifice piece and the tip piece cooperate to form a turbulating chamber. The turbulating chamber imparts turbulence to the fluid flowing through the turbulating chamber. The turbulence shears the fluid for an even spray fan pattern.
Data Source
AI summary
A spray tip includes a body portion with an aperture extending through the body portion from an aperture inlet to an aperture outlet, and a handle portion attached to the body portion. The handle portion is configured to rotate the body portion. A retainer with an upstream end and a downstream end is positioned in the aperture of the body portion. A pre-orifice piece with an upstream end and a downstream end is positioned in the aperture of the body portion. A tip piece with an upstream end and a downstream end is positioned in the aperture of the body portion. The downstream end comprises an outlet nozzle.