Round Filter Element With Asymmetric Open and Closed End Disks
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Solution Overview
Problem
Existing round filter elements face challenges in achieving high efficiency with complex structural configurations, leading to increased flow resistance and material usage.
Innovation Solution
The end disks at the axially opposite ends of the filter medium body are designed to match the outer or inner contour of the pleated-type filter medium body, with one end disk being open to allow axial fluid flow and the other being closed to prevent axial flow, reducing flow resistance and material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a closed end disk is used at both end faces to support the filter medium body, then structural stability is improved, but flow resistance increases and material usage increases
Solution Approach 1:
The end disk function is segmented into two types: one closed end disk for structural support and one open end disk for fluid outflow. This segmentation allows the filter element to maintain structural stability while reducing flow resistance by providing an unobstructed exit path for the purified fluid.
Solution Approach 2:
Different regions of the filter element are assigned different properties: one end face has a closed end disk for stability, while the other end face has an open end disk optimized for fluid flow. This local differentiation resolves the contradiction by applying the appropriate structure only where needed.
2Stability of the object's composition
If the end disk outer contour matches the filter medium body outer contour, then structural support is improved, but material usage increases
Solution Approach 1:
The end disk is designed with selective contour matching: the outer contour matches the filter medium body outer contour only at specific locations necessary for structural support, while other areas are minimized or opened. This local matching provides adequate support without requiring full-contour matching that would increase material usage.
Solution Approach 2:
The open end disk extracts only the essential structural support function from the full closed end disk design, removing the unnecessary material portions while retaining the critical support capability needed for the filter medium body.
3Strength
If a closed end disk configuration is used, then structural integrity is improved, but installation space requirements increase
Solution Approach 1:
The filter element is segmented into a closed end disk section for structural integrity and an open end disk section for compactness. This segmentation allows the element to maintain sufficient structural strength while reducing the overall volume and installation space requirements compared to a fully closed configuration.
Solution Approach 2:
The filter element employs asymmetric end disk configuration where one end is closed and the other is open, creating an asymmetric structure that optimizes both structural integrity and space efficiency. The asymmetric design allows compact installation while maintaining necessary strength at the closed end.
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
This configuration minimizes flow resistance and material usage while maintaining high filtration efficiency, allowing for space-saving arrangements and reduced installation space requirements.
Implementation Method 1
an annular circumferentially extending pleated-type filter medium body which can be flowed through by a fluid to be purified in radial direction
Implementation Method 2
the flow of the fluid to be purified through the filter medium body—in relation to the longitudinal axis of the round filter element—is realized in radial direction
Data Source
AI summary
A round filter element has an annular circumferentially extending pleated filter medium body to be flowed through by a fluid to be purified radially relative to a longitudinal axis of the filter medium body. A first end disk is arranged at a first end face of the filter medium body. A second end disk is arranged at a second end face of the filter medium body. The second end face is axially opposite the first end face. An outer or an inner contour of the first end disk is identically or at least substantially identically embodied to an outer or an inner contour of the filter medium body. An outer or an inner contour of the second end disk is identically or at least substantially identically embodied to the outer or the inner contour of the filter medium body. One of the first and second end disks is open.