Conical Pleated Paper Filter for Multi-Contaminant Filtration
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Solution Overview
Problem
Existing paper filters are limited in their ability to efficiently filter multiple contaminants and require complex manufacturing processes.
Innovation Solution
A conical paper cartridge filter with a single end cap and pleated structure, allowing for multiple layers of paper with different filtration capabilities, and a tool for easy pleating, reducing manufacturing complexity and enhancing filtration performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple layers of paper are used for different filtration purposes, then filtration performance is improved, but manufacturing complexity increases
Solution Approach 1:
The filter is divided into multiple functional layers, each with a specific filtration purpose (e.g., first layer for particulate metals, second layer for organic chemicals). This segmentation allows each layer to be optimized for its specific function while maintaining overall manufacturing simplicity through the conical pleated structure.
Solution Approach 2:
Multiple filtration layers are nested within each other in a compact conical structure. The pleated design allows multiple layers to be stacked efficiently within the same footprint, enabling multi-functionality without proportionally increasing device complexity.
2Device complexity
If a single end cap is used instead of two end caps, then manufacturing complexity is reduced, but structural support may be compromised
Solution Approach 1:
The end cap is merged with the closed end of the conical filter to form a single integrated component. This eliminates the need for a separate second end cap while maintaining structural integrity through the self-supporting pleated conical design.
Solution Approach 2:
The conical pleated structure with its curved surfaces provides inherent structural strength and stability. The geometric form of the cone with pleated paper creates a self-supporting structure that does not require additional end caps for structural integrity.
3Volume of moving object
If the paper is pleated to allow collapsing, then the filter can be compacted for storage, but manufacturing precision requirements increase
Solution Approach 1:
The pleating creates a conical structure with curved surfaces that naturally collapse into a compact form. The geometric design of the pleats allows them to fold neatly upon themselves, achieving compact storage without requiring extremely precise manufacturing tolerances.
Solution Approach 2:
The pleated conical structure is designed to collapse and nest within itself, with the open end folding into the body of the filter. This self-nesting capability allows compact storage while the standardized pleat pattern keeps manufacturing precision requirements manageable.
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 provides a more performant filter that efficiently removes a variety of contaminants and simplifies manufacturing by reducing the number of components and steps.
Implementation Method 1
water flows from inside to outside of the pleated paper. Alternatively, the tube may assure that water flows from outside to inside of the pleated paper
Data Source
AI summary
A conical folded-paper cartridge filter that is formed with one closed end and that has an end cap at the open end. The filter medium of the cartridge is pleated so that the open end can be collapsed to fit into the end cap, while retaining a central open space. The end cap may have a tube that protrudes inwardly into the central open space of the cartridge. The tube may support the structure of the cartridge. The tube also may assure that water flows from inside to outside of the pleated paper. Alternatively, the tube may assure that water flows from outside to inside of the pleated paper.