Filter Element with Separate Inflow Surfaces Against Clogging
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Solution Overview
Problem
Existing filter elements are prone to clogging by suspended particles such as snow and ice, leading to reduced filtration efficiency and potential bypass flows.
Innovation Solution
A filter element with separate inflow surfaces and a compensation element in the flow channel section, allowing for a secondary fluid flow through a nonwoven or elastomer compensation element that prevents clogging and maintains filtration efficiency by providing an additional filtration region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single inflow surface is used for filtering fluid, then the filter element structure is simple, but the filter element is prone to clogging by suspended particles such as snow and ice
Solution Approach 1:
The filter element is divided into multiple independent inflow surfaces (first areal inflow surface and second inflow surface) that are fluid-tightly separated. This segmentation allows different fluid flows to enter through different surfaces, preventing suspended particles from clogging the entire filter element. If one surface becomes obstructed, the other continues to function, thereby maintaining filtration reliability while keeping each surface relatively simple in structure.
2Reliability
If a compensation element is added to prevent clogging, then the filtration reliability is improved, but the device complexity increases
Solution Approach 1:
A compensation element is introduced as an intermediary component in the flow channel section of the second fluid flow. This element acts as a mediator that prevents suspended particles from directly reaching and clogging the second inflow surface. The compensation element is arranged in a way that integrates with the existing filter structure, providing an additional layer of protection without significantly complicating the overall device design.
3Reliability
If separate inflow surfaces are provided for different fluid flows, then the resistance to clogging is improved, but the manufacturing complexity increases
Solution Approach 1:
The filter element is designed with segmented inflow surfaces that are fluid-tightly separated, allowing independent optimization of each surface for specific fluid flows. This segmentation enables manufacturers to produce each surface with tailored characteristics while maintaining overall assembly simplicity through modular design principles.
Solution Approach 2:
Different regions of the filter element are designed with locally optimized properties. The first areal inflow surface and second inflow surface have distinct characteristics suited for their respective fluid flows. This local quality approach allows each region to be manufactured with specific requirements in mind, improving overall manufacturability while achieving superior clogging resistance.
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 solution effectively prevents clogging by suspended particles, ensuring continuous filtration performance even when the primary inflow surface is obstructed, and allows for easy assembly and exchange of the filter element.
Implementation Method 1
at least one compensation element is arranged in a flow channel section of the second fluid flow at the raw side
Implementation Method 2
A filter element with separate inflow surfaces and a compensation element in the flow channel section, allowing for a secondary fluid flow through a nonwoven or elastomer compensation element
Data Source
AI summary
A filter element for filtering a fluid is provided with at least one filter bellows with a first areal inflow surface for a first fluid flow of the fluid and at least one second inflow surface for a second fluid flow of the fluid separate from the first fluid flow of the fluid. The at least one second inflow surface is separate from the first areal inflow surface. A flow channel section for the second fluid flow of the fluid is provided. At least one compensation element is arranged in the flow channel section for the second fluid flow of the fluid at a raw side of the filter element. A filter system with a filter housing is provided with such a filter element arranged exchangeably in the filter housing.