Fluid Jet Catcher With Oblique Deflection For Wear Reduction
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Solution Overview
Problem
Existing waterjet cutting systems dissipate energy inefficiently and suffer from wear issues due to unpredictable fluid stream deflection within catchers, limiting their operational longevity and efficiency.
Innovation Solution
A catcher system with a housing and replaceable wear-resistant deflecting members made from materials like polycrystalline diamond, which deflects the fluid stream obliquely in preselected directions, minimizing energy dissipation and wear by repositioning the deflecting members to extend their lifespan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a waterjet stream catcher is used to dissipate energy after cutting, then the cutting efficiency is improved, but the catcher components suffer from wear and require frequent replacement
Solution Approach 1:
The catcher is divided into modular components including a housing, multiple deflecting members, and a receiver assembly that can be independently removed and replaced. This segmentation allows wear-prone components to be replaced without replacing the entire catcher system.
Solution Approach 2:
Wear-resistant materials such as polycrystalline diamond, boron carbide, or tungsten carbide are applied specifically to the deflecting members and receiver surfaces that contact the fluid stream. This localized application of high-performance materials protects critical wear zones while maintaining overall system efficiency.
2Loss of energy
If the fluid stream is deflected within the housing, then energy dissipation is achieved, but the deflection direction is unpredictable causing harmful effects on housing components
Solution Approach 1:
The deflecting members are pre-positioned at specific angles and orientations within the housing to control the deflection path of the fluid stream. This preliminary arrangement ensures predictable energy dissipation while directing the stream away from sensitive housing components.
Solution Approach 2:
The deflecting members act as intermediary elements between the incoming fluid stream and the housing structure. These intermediaries absorb and redirect the kinetic energy of the fluid stream through controlled deflection, preventing direct impact on the housing walls.
3Loss of energy
If the catcher housing is made larger to accommodate fluid stream deflection, then energy dissipation is improved, but the device complexity and space requirements increase
Solution Approach 1:
The receiver assembly containing the deflecting members is nested within the housing structure. This nested configuration allows the deflecting mechanism to be compact while still providing adequate space for fluid stream deflection and energy dissipation.
Solution Approach 2:
The deflecting members are oriented at various angles and positioned in three-dimensional space within the housing to maximize energy dissipation in a compact volume. This spatial arrangement allows efficient energy dissipation without requiring a proportionally larger housing.
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 system effectively dissipates the energy of the fluid stream in a predictable manner, reducing wear on the catcher components and extending its operational time without the need for frequent reconfiguration or replacement, thus improving cutting efficiency and longevity.
Implementation Method 1
deflecting the fluid stream obliquely within the housing in one or more preselected directions
Data Source
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AI summary
A catcher (10,100) for a fluid stream and a method of capturing a fluid stream from a nozzle (16) and dissipating the energy therein includes receiving the fluid stream into a housing (12,202,302,402) through an aperture (14); and deflecting the fluid stream obliquely within the housing (12,202,302,402) in one or more preselected directions.