Deformable Drain Shield for Erosion-Resistant Apertures
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Solution Overview
Problem
Debris entrained within fluid erodes, corrodes, and/or wears drainage apertures in work-producing devices, leading to increased drainage flow and negatively impacting efficiency and operation.
Innovation Solution
A drain shield with a body, stop, and plastically deformable portion is installed within the aperture, conforming to the aperture's geometry through deformation, providing erosion, corrosion, and wear protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a drain aperture is provided in the casing wall to enable drainage flow, then drainage function is improved, but the aperture becomes susceptible to erosion, corrosion, and wear from debris-laden fluid
Solution Approach 1:
A drain shield is introduced as an intermediary component between the debris-laden fluid and the aperture. The shield has a body with a passage that allows fluid to flow through while its outer periphery contacts the aperture wall, creating a protective barrier that prevents direct contact between debris and the aperture material.
Solution Approach 2:
The drain shield is designed as a sacrificial protective element that can be replaced when worn. By making the shield replaceable rather than repairing the aperture itself, the system allows for economical maintenance of the drainage function without compromising the permanent casing structure.
2Reliability
If the aperture wall is made more resistant to erosion and wear, then durability is improved, but the complexity of the casing structure increases
Solution Approach 1:
The protective function is segmented from the casing wall itself and placed in a separate drain shield component. This allows the aperture to remain simple while the protective shield handles the erosion and wear resistance, maintaining structural simplicity while achieving durability.
3Reliability
If a protective layer is added to the aperture, then erosion and wear resistance is improved, but the complexity of installation and maintenance increases
Solution Approach 1:
The drain shield incorporates a plastically deformable portion that transitions from a non-deformed state during insertion to a deformed state during installation. This dynamic characteristic allows for simple insertion followed by secure attachment through deformation, simplifying the overall installation process while ensuring reliable protection.
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 drain shield effectively protects apertures from erosion, corrosion, and wear, maintaining efficient drainage flow and device operation.
Implementation Method 1
a plastically deformable portion (16) at a second end (12B) of the body opposite the first end (12A)
Data Source
AI summary
A drain shield can include a body, a stop, and a plastically deformable portion. The body includes a passage extending through the body and along an axis. The stop extends outward from a first end of the body relative to the axis. The plastically deformable portion is at a second end opposite the first end. A casing module can include a wall separating a high-pressure region from a low-pressure region fluidly connected by an aperture extending through the wall. The drain shield is insertable through the aperture and deformable to enclose the aperture.