Fluid Filter Interconnecting Piece Curved Geometry
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Solution Overview
Problem
Existing fluid filters in motor vehicle systems, such as ESP systems, experience turbulent flows and vibrations due to high flow velocities, leading to potential fatigue fractures and reverse overflowing, especially in regions with woven fabric geometries.
Innovation Solution
The fluid filter design features a filter interconnecting piece with an outer section, a middle section, and an inner section, configured as projections, optimized through direct injection molding to reduce turbulent flows and vibrations, with geometries determined by computational fluid dynamics for enhanced flow guidance and reduced risk of fracture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the filter interconnecting piece has a conventional woven fabric geometry, then the filter can be manufactured simply, but turbulent flows and vibrations occur due to high flow velocities
Solution Approach 1:
The filter interconnecting piece is designed with a curved, streamlined geometry that guides fluid flow smoothly through the component. The curved surfaces eliminate sharp edges and corners that would cause flow separation and turbulence, thereby reducing vibrations and the risk of fatigue fracture while maintaining manufacturing feasibility through injection molding
Solution Approach 2:
The invention changes the geometric parameters of the filter interconnecting piece from conventional woven fabric geometry to a specifically optimized streamlined shape. This parameter change includes modifying the contour, curvature radius, and overall form to achieve optimal flow guidance that minimizes turbulent flows and vibrations
2Reliability
If the filter interconnecting piece has a streamlined geometry for optimized flow guidance, then turbulent flows are reduced, but the manufacturing complexity increases
Solution Approach 1:
The invention replaces complex mechanical assembly of multiple components with a single integrated injection-molded piece. The streamlined geometry is achieved through mold design rather than mechanical fabrication, substituting complex manufacturing processes with a simpler molding process that can produce complex shapes in one step
3Productivity
If high flow velocities are present in the filter, then the filtering capacity is maintained, but reverse overflowing of the filter woven fabrics occurs
Solution Approach 1:
The curved, streamlined geometry of the filter interconnecting piece guides high-velocity fluid flow smoothly through the component without creating areas of flow separation or eddies that would cause reverse overflowing. The continuous curved surfaces maintain flow directionality even at high velocities
Data Source
AI summary
A fluid filter for a fluid device with one or more of a pump element and a solenoid valve in a motor vehicle, in particular for an ESP system. The fluid filter is formed by direct injection molding and has at least one filter connecting piece. The filter connecting piece has an outer section, a middle section, and an inner section. The outer section is in the form of a projection that is directed outwards with respect to the fluid filter. The inner section is in the form of a projection that is directed inwards with respect to the fluid filter.