Filter Element Supporting Elements for Vibration Damping
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Solution Overview
Problem
Existing filter elements for fluid filtration, particularly in internal combustion engines, face challenges in secure and stable positioning within filter housings, especially for large, heavy, or voluminous elements with folded filter media, leading to potential tilting and vibration-induced damage.
Innovation Solution
The integration of a separate filter element holding device connected to the filter bellows and a supporting element that can be positioned transversely or axially to securely hold and support the filter element, allowing for optimal force transmission and vibration damping, using materials like elastic polyurethane or foamed plastic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a filter element is made large or voluminous to increase filtration capacity, then the filtration performance is improved, but the positioning stability in the filter housing deteriorates
Solution Approach 1:
The filter element is divided into functional segments: a filter bellows for filtration and separate supporting elements for stabilization. The supporting elements are positioned at specific locations (e.g., at ends or along sides) to provide localized support without increasing the overall filter volume, thus maintaining filtration capacity while improving positioning stability.
Solution Approach 2:
Supporting elements act as intermediary components between the filter bellows and the filter housing. These intermediaries transfer and distribute mechanical forces, preventing direct contact points that could cause tilting or instability, thereby enabling large filter elements to remain stable without compromising their filtration volume.
2Weight of moving object
If a filter element is made heavy to increase structural strength, then the structural integrity is improved, but the positioning stability in the filter housing deteriorates
Solution Approach 1:
The structural function is segmented from the filtration function. The filter bellows maintains its filtration structure while supporting elements provide the necessary mechanical strength and stability. This allows the filter element to achieve required structural integrity without excessive weight that would compromise positioning stability.
Solution Approach 2:
The filter element combines different materials with complementary properties: the filter bellows uses materials optimized for filtration, while supporting elements use materials with high strength-to-weight ratios (such as rigid plastics or metals) to provide structural support and stability without adding excessive weight.
3Device complexity
If the filter element structure is simplified to reduce manufacturing cost, then the manufacturing complexity is reduced, but the positioning stability in the filter housing deteriorates
Solution Approach 1:
The filter element is designed with segmented functionality where supporting elements are added as distinct components rather than integrating complexity into the filter bellows itself. This segmentation allows each component to be manufactured separately using simple processes, then assembled together to achieve the required positioning stability.
Solution Approach 2:
The supporting elements can be manufactured as simple, inexpensive components (such as molded plastic strips or basic metal clips) that provide adequate stability for the service life of the filter element. Their simplicity keeps manufacturing costs low while effectively solving the positioning stability problem.
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 solution enables stable and reliable positioning of large or heavy filter elements, reduces the risk of tilting, and enhances the service life by damping vibrations and noise, while allowing for precise and tolerant installation.
Implementation Method 1
enhances the service life by damping vibrations and noise
Implementation Method 2
using materials like elastic polyurethane or foamed plastic
Data Source
AI summary
A filter element is provided with a filter bellows that has an inflow side and an outflow side for a fluid to be filtered, wherein the filter bellows is made of a zigzag-folded filter medium with folds with fold edges. The inflow side is defined by the fold edges of the folds of the zigzag-folded filter medium at the inflow side and the outflow side is defined by the fold edges of the folds of the zigzag-folded filter medium at the outflow side. At least one filter element holding device is provided that holds the filter element in a filter housing. The at least one filter element holding device is connected directly or indirectly with the filter bellows. At least one supporting element supports the filter element in the filter housing; the at least one supporting element is separate from the at least one filter element holding device.