Filter Insert With U-Shaped Element For Reduced Flow Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing filter devices face challenges in achieving high cleaning performance while maintaining compact dimensions, leading to increased flow resistance and inefficiencies in fluid filtration.
Innovation Solution
A filter insert with a U-shaped filter element and a housing nozzle design that features a large outflow opening and reduced radial thickness, allowing for increased fluid flow and reduced flow resistance, along with a flow pipe and plug-in part to enhance acoustic and flow characteristics, while maintaining compact dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the filter element size is reduced to achieve compact dimensions, then the device size is reduced, but the cleaning performance decreases and flow resistance increases
Solution Approach 1:
The filter element is designed with a three-dimensional folded structure that extends in multiple spatial dimensions. The folds create multiple filtration surfaces stacked in the radial direction, allowing the filter to achieve high cleaning performance within a compact axial length. This dimensional approach enables the filter element to provide sufficient filtration area without increasing its overall size.
Solution Approach 2:
The filter element employs a nested folded structure where multiple layers of filtering means are arranged concentrically. Each fold contains filtering surfaces within the volume of previous folds, maximizing the use of available space. This nesting allows the filter to maintain compact dimensions while providing extensive filtration surface area for high cleaning performance.
2Volume of moving object
If the filter element size is reduced to achieve compact dimensions, then the device size is reduced, but the flow resistance increases
Solution Approach 1:
The filter element is segmented into multiple folded sections with flow openings distributed across different levels. This segmentation creates multiple parallel flow paths through the filter element, preventing flow concentration in a single area. The distributed flow openings reduce flow resistance by allowing fluid to pass through multiple routes simultaneously, maintaining low energy loss despite the compact size.
Solution Approach 2:
The filter element features locally optimized flow openings positioned at specific locations on the folded structure. These flow openings are strategically placed to create favorable flow conditions in different regions, reducing turbulence and flow resistance. The local quality approach ensures that each section of the compact filter element contributes efficiently to overall flow performance.
3Loss of energy
If a large outflow opening is used to reduce flow resistance, then the flow performance improves, but the geometric dimensions increase
Solution Approach 1:
Instead of increasing the outflow opening size in a single plane, the solution utilizes the third dimension by distributing multiple flow openings across different levels of the folded structure. This dimensional approach provides equivalent or superior flow performance to a single large opening while maintaining compact overall dimensions. The multi-level flow openings collectively handle the required flow volume without increasing the filter's external size.
Solution Approach 2:
The outflow function is segmented into multiple smaller flow openings distributed across the filter element surface. These segmented openings collectively provide the same or better flow performance as a single large opening, while the distributed arrangement reduces flow resistance through parallel flow paths. This segmentation allows the filter to maintain compact dimensions while achieving low flow 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 design achieves high cleaning efficiency with reduced flow resistance, enabling the meeting of cleaning performance requirements using smaller-sized filter elements and allowing for flexible geometric configurations without compromising performance.
Implementation Method 1
The filter element has an elongate cross section and is U-shaped, for example, so that the interior distance in the filter element in a first direction transverse to the longitudinal axis of the flow opening is shorter than the interior distance in a second direction transverse to the longitudinal axis. The shortest interior distance in the filter element immediately adjacent to the flow opening—along a tangent to the outside diameter of the flow opening—is shorter than the inside diameter of the flow opening. This embodiment has the advantage that, in relation to the outer dimensions of the filter element, a relatively large flow opening for conveying the filtered fluid is present, which is associated with reduced flow resistance on the filtered side of the filter element.
Data Source
AI summary
A filter insert for a filter device, having a filter element arranged on a longitudinal axis extending there through and a front-side flow opening arranged on the front side of the filter element with the longitudinal axis extending through the flow opening. The filter element has, with respect to the longitudinal axis, at least one flattened portion with a reduced radial extension or a through hole along the periphery of the flow opening the shortest interior distance in the filter element immediately adjacent to the front-side flow opening is shorter than the inside diameter of the front-side flow opening.