Reinforced Spin-On Filter Housing With Metal Plate
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Spin on filters for internal combustion engines and hydraulic equipment face challenges in strength, ease of servicing, and ensuring the use of high-quality filter elements, with existing solutions often requiring complex disassembly and replacement processes and being prone to metal weight and contamination issues.
Innovation Solution
A rechargeable spin on filter design featuring a polymeric housing with a metal reinforcing plate, plate lock projections, and registration features for secure assembly and easy replacement of filter elements, ensuring secure attachment and efficient fluid flow while allowing for the use of high-quality filter elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metal components are used for filter housing and cover, then strength and pressure resistance are improved, but weight increases and recycling complexity increases
Solution Approach 1:
The filter housing and cover are constructed from polymeric materials (plastics) rather than metal, creating a composite construction that reduces weight while maintaining structural integrity. The patent specifies that the housing and cover can be made from materials such as polypropylene, polyethylene, or other suitable polymers that provide adequate strength for filtering applications without the weight penalty of metal components.
2Weight of moving object
If plastic is used for filter housing, then weight is reduced, but strength and resistance to cracking decrease
Solution Approach 1:
The design incorporates a recessed portion in the cover that receives the filter element, creating a localized structural feature that distributes stress and prevents cracking in high-stress areas. The threaded adaptor is integrated into the housing design with specific thread configurations that localize strength where needed without requiring the entire housing to be metal.
3Ease of repair
If filter elements are made replaceable, then servicing flexibility is improved, but device complexity and assembly requirements increase
Solution Approach 1:
The filter system is divided into distinct segments: a reusable housing/cover assembly and a replaceable filter element. The filter element is designed as a separate component that can be independently removed and replaced by simply detaching it from the recessed portion of the cover, eliminating the need to disassemble the entire filter housing or replace the cover itself.
Solution Approach 2:
The filter element is extracted as a separate, removable component from the housing assembly. The recessed portion in the cover is specifically designed to receive and hold the filter element, allowing it to be easily taken out and replaced without affecting the structural integrity or functionality of the housing and cover components.
4Reliability
If registration features are added to ensure authorized filter elements, then quality control is improved, but manufacturing complexity increases
Solution Approach 1:
The filter element incorporates asymmetric registration features such as a protrusion on one end and a corresponding recess on the other end. These asymmetric features must match the corresponding features in the housing and cover, ensuring that only authorized filter elements with the correct geometry can be properly installed. This prevents the use of incompatible or inferior aftermarket elements.
Solution Approach 2:
The registration features act as intermediary elements between the filter element and the housing/cover assembly. These features include protrusions, recesses, or coded geometric elements that must align and mate precisely, serving as a mechanical verification system that ensures only authorized, properly-designed filter elements can be installed in the filter housing.
Data Source
AI summary
A rechargeable spin-on filter includes a cover, a housing threadably joined with the housing, and a filter element can be replaced with another filter element relative thereto. The cover and/or housing can be plastic. The cover can include a bottom plate having inlet ports and an outlet port. The bottom plate can be reinforced with an optionally metal reinforcing plate that registers and locks relative to the bottom plate via locking elements, in the form of corresponding apertures and projections or tabs that interfit with one another. A related method is provided.