Filter Liner Deflected Portion Rotor Adhesion
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Solution Overview
Problem
Filter assembly liners often stick to the rotor surface, making removal difficult and requiring frequent replacement, leading to storage space issues and incomplete contaminant particle removal.
Innovation Solution
A monolithic tubular sleeve liner with a deflected portion at a predefined angle, made from resilient materials like silicone or fibre reinforced polymers, which is rigidly connected to the tubular portion and includes foldable regions for easy servicing and cleaning, reducing the number of components and improving separation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a liner is used to line the interior surface of the rotor, then contaminant particles are retained on the liner instead of the rotor surface, but the liner may stick to the rotor surface making removal difficult and time consuming
Solution Approach 1:
The liner is divided into a tubular portion and a deflected portion that are rigidly connected. The deflected portion extends into the cavity and delimits an opening, creating a structural segmentation that prevents the entire liner from adhering to the rotor surface while maintaining contaminant retention on the tubular portion.
Solution Approach 2:
The deflected portion is extracted from the continuous tubular structure and configured to extend into the cavity at a predefined angle. This extracted portion acts as a non-adhering element that prevents the liner from sticking to the rotor while the tubular portion retains contaminants.
2Reliability
If liners are made disposable and removable, then cleaning efficacy is maintained, but storage space is required to maintain adequate stock of liners
Solution Approach 1:
The liner is configured with a deflected portion that folds back into the cavity, allowing the liner to be nested within the rotor assembly when not in use. This nesting capability eliminates the need for separate storage space while maintaining the disposable, removable nature of the liner for cleaning efficacy.
3Strength
If the deflected portion is rigidly connected to the tubular portion, then the liner maintains structural integrity, but the liner may be more difficult to install or remove
Solution Approach 1:
The liner exhibits local quality differentiation where the tubular portion is designed for contaminant retention and the deflected portion is configured for easy removal. The rigid connection maintains structural integrity where needed while the deflected portion's geometry allows it to be detached without removing the entire liner structure.
4Productivity
If the deflected portion extends into the cavity at a predefined angle, then separation efficiency is improved, but the liner becomes more complex in structure
Solution Approach 1:
The liner transitions from a symmetric tubular structure to an asymmetric structure with a deflected portion extending at a predefined angle. This asymmetric configuration improves separation efficiency by directing flow and contaminants more effectively, while the simplicity of the deflection (single angle change) keeps the overall structural complexity manageable.
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
Facilitates easier and more efficient servicing and cleaning of filter assemblies by reducing liner removal difficulties and maintaining separation effectiveness, while minimizing storage needs.
Implementation Method 1
The wall may be formed of or comprise a resiliently deformable material. The wall may be formed of or comprise silicone.
Implementation Method 2
the pressurised fluid is tangentially ejected from the rotor such that the rotor is caused to spin. As the working fluid flows through the spinning rotor, denser contaminants or particles are separated therefrom by centrifugal force
Data Source
Figure 1
Figure 2~3
AI summary
There is provided a liner for a filter sub-assembly. The liner comprises a wall having an innermost surface configured to bound a cavity extending between opposing first and second ends of the liner. The wall further has a deflected portion configured to extend into the cavity and delimit an opening. The liner may be used in a rotor of a filter assembly.