Additive Manufactured Filter Element With Variable Porosity
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Solution Overview
Problem
Existing filter technologies for internal combustion engines and mechanical power generation often require separate permeable and impermeable components, which can complicate assembly and may not efficiently manage fluid flow and contaminant capture due to fixed configurations.
Innovation Solution
A filter element is fabricated using a laser manufacturing process from powdered metal, integrating a fluid-permeable filtration media with a fluid-impermeable solid component, both formed from fused metal granules with distinct porosities, allowing for adjustable porosity and density characteristics to optimize fluid flow and contaminant capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If separate permeable and impermeable components are used in traditional filter designs, then assembly complexity increases and fluid flow management becomes less efficient, but manufacturing simplicity is maintained
Solution Approach 1:
The patent combines separate permeable and impermeable components into a single integrated filter element manufactured by additive manufacturing. The filter element includes a filtration media portion with controlled porosity for fluid passage and a support structure portion with reduced porosity for structural function, both formed as one integral component. This merging eliminates assembly complexity while optimizing fluid flow management through the permeable filtration media.
2Adaptability or versatility
If fixed porosity configurations are used in traditional filters, then manufacturing simplicity is maintained, but adaptability to different filtration requirements is reduced
Solution Approach 1:
The patent utilizes additive manufacturing technology to enable variable porosity parameters within a single filter element. The filtration media portion can be manufactured with different porosity levels in different regions or throughout the structure, allowing adaptation to various filtration requirements. The support structure portion maintains reduced porosity for structural integrity. This parameter variability is achieved through digital modeling and controlled material deposition during additive manufacturing, providing manufacturing flexibility without sacrificing ease of production.
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 integrated filter element effectively directs fluid flow while trapping contaminants, offering improved assembly efficiency and performance by varying porosity and density within the same component, enhancing filtration capabilities in internal combustion engines and mechanical systems.
Implementation Method 1
A laser beam is directed toward the first layer to form a first component of the filter element by fusing metal particle granules together
Implementation Method 2
A laser beam is directed toward the first layer to form a first component of the filter element by fusing metal particle granules together
Data Source
AI summary
A filter element for the filtration of fluids can be manufactured from powdered metal using a laser manufacturing process. The powdered metal is deposited in a layer on fabrication platform and a laser beam is directed toward the layer of material so that the powdered metal granules fuse together to form a first component of the filter element. Successive layers of powdered metal can be deposited over the first component and also fused with the laser beam to form additional components. During the manufacturing process, the power or scan rate of the laser beam many be changed so that the formed layers of the filter element may have different porosity characteristics, for example, with certain portions being fluid permeable and other portions being fluid impermeable.