Diamond Pleated Filter Cartridge High Flow Rate
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Solution Overview
Problem
Conventional filter cartridges, such as the 3M model number 740B series, have limited flow rates due to their small inner core diameter, restricting their application in high-flow filtration systems and requiring more cartridges to achieve comparable fluid flow rates, which increases costs and environmental impact.
Innovation Solution
A diamond patterned tubular pleated filter element with a larger outer to inner diameter ratio, positioned around a core element, providing a higher usable media surface area per unit volume and enabling flow rates up to 500 gpm, while maintaining a smaller footprint and lower filtration costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional filter cartridges with small inner core diameter are used, then the cartridge size is minimized, but the flow rate is limited to maximum of about 80 gpm
Solution Approach 1:
The filter media is pleated in a radial direction from the outer surface toward the inner core, creating a three-dimensional pleated structure that maximizes the use of available space. This radial pleating arrangement allows the filter media to extend in multiple dimensions rather than just linearly, significantly increasing the effective filtering surface area within the same cartridge volume while maintaining compact size.
Solution Approach 2:
The invention changes the geometric parameters of the filter cartridge by optimizing the ratio of outer diameter to inner core diameter, and by controlling the pleat depth and spacing. These parameter changes allow maximum packing density of filter media while maintaining adequate flow channels, thereby increasing both the flow rate capacity and the filtering surface area within the same cartridge volume.
2Productivity
If more filter cartridges are used to achieve higher flow rates, then the required flow rate is met, but the cost and environmental impact increase
Solution Approach 1:
The invention combines multiple filtering surfaces into a single integrated cartridge by radially pleating the filter media. This merging of multiple filtering pathways into one cartridge allows the system to achieve high flow rates using fewer cartridges, reducing the total quantity of filter media and cartridges needed while meeting the required flow rate specifications.
Solution Approach 2:
By utilizing radial pleating that extends from the outer surface to the inner core, the invention creates a multi-layered filtering structure that effectively combines the functionality of multiple cartridges into one. This dimensional approach allows fluid to flow through multiple pleated layers simultaneously, achieving high flow rates with a single cartridge.
3Productivity
If the inner core diameter is increased to allow higher flow rates, then the flow rate capacity increases, but the media packing density decreases
Solution Approach 1:
The invention optimizes the parameters of the filter cartridge by carefully selecting the outer diameter, inner core diameter, and pleat geometry to achieve the maximum outer to inner diameter ratio. This parameter optimization ensures adequate flow capacity through the larger core while maximizing the packing density of filter media in the radial space between the outer and inner surfaces.
Solution Approach 2:
The radial pleating structure utilizes the three-dimensional space between the outer and inner cylinders efficiently. By arranging pleats radially from the outer surface to the inner core, the invention maximizes the use of available volume, ensuring high media packing density even with a larger inner core diameter that accommodates higher flow rates.
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 diamond patterned tubular pleated filter element enhances fluid flow rates, reduces the number of cartridges needed, and lowers filtration costs by increasing media packing density and flow efficiency within a smaller housing diameter, thus addressing the limitations of conventional cartridges.
Implementation Method 1
a diamond patterned tubular pleated filter element with a larger outer to inner diameter ratio, positioned around a core element, providing a higher usable media surface area per unit volume
Data Source
AI summary
A filter housing and filter cartridge engagement structure comprising a housing having at least one ramp adapted to engage lugs of the at least one filter cartridge.