Filter Element Torsion Lock and Keying Mechanism
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Solution Overview
Problem
Existing filter apparatuses for engine fuel and lubrication systems are inadequate in facilitating easy servicing, preventing contamination during element replacement, and ensuring proper alignment and secure attachment of filter elements, while also providing efficient filtration and aesthetic appeal.
Innovation Solution
A filter apparatus with a filter element and housing configuration featuring a parallel, bi-directional flow pattern, keying and locking mechanisms for secure attachment, and design elements that prevent contamination and allow tool-less replacement, including a torsion lock mechanism and RFID tagging for proper filter identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If a filter element is designed to be removable and replaceable, then servicing is facilitated, but the risk of contamination during replacement and improper installation increases
Solution Approach 1:
The filter element includes sealing surfaces and keying features pre-configured to ensure proper alignment and sealing upon installation. The housing includes corresponding receptacles and locking mechanisms that guide correct placement before sealing, preventing contamination during the replacement process.
Solution Approach 2:
Sealing surfaces act as intermediaries between the filter element and housing, creating a barrier that prevents contamination entry. The keying features serve as intermediaries to ensure proper alignment during installation, guiding the element into the correct position before the seal engages.
2Reliability
If a filter apparatus includes secure attachment mechanisms, then reliability is improved, but device complexity increases
Solution Approach 1:
The filter element and housing include asymmetric keying features with specific geometric profiles that must align in a particular orientation. This asymmetric design ensures secure attachment and prevents improper installation, while the features are integrated into the basic structure rather than added as separate complex components.
Solution Approach 2:
The locking and keying features are merged with the basic structural components of the filter element and housing. The sealing surfaces, keying features, and locking mechanisms are integrated into the same parts rather than being separate assemblies, reducing overall device complexity while maintaining secure attachment.
3Reliability
If keying features are added to prevent improper installation, then manufacturing precision requirements increase, but installation errors are prevented
Solution Approach 1:
The keying system is segmented into discrete geometric features on both the filter element and housing that interface with each other. These segmented features include keys, keyways, and corresponding locking surfaces that work together to ensure proper alignment without requiring extremely tight tolerances on individual components.
Solution Approach 2:
Asymmetric keying features with distinct geometric profiles are used to prevent improper installation. The asymmetric design provides built-in alignment guidance that reduces the need for high manufacturing precision by self-correcting minor variations through the geometric constraint of the key-way interface.
4Ease of operation
If a filter element is designed for tool-less replacement, then ease of operation is improved, but secure attachment during operation may be compromised
Solution Approach 1:
The filter element is pre-assembled with the filter media secured to the element structure before installation in the housing. This preliminary assembly ensures that all components are securely attached to each other, allowing the complete assembly to be installed and removed as a single unit without tools while maintaining attachment security during operation.
Solution Approach 2:
The filtering, sealing, and locking functions are merged into an integrated filter element assembly that can be installed and removed as a single unit. The filter media, sealing surfaces, and keying features are combined in one assembly, enabling tool-less replacement while maintaining secure attachment through the integrated locking mechanism.
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
Enhances filter capacity, simplifies maintenance, ensures proper alignment and secure attachment, prevents contamination, and provides a pleasing aesthetic appearance while ensuring efficient filtration and easy servicing.
Implementation Method 1
a filter element for trapping the particulate matter in a media
Data Source
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AI summary
A fluid filtering apparatus and method may include keyed components to ensure that a correct filter element is being installed into a filter base. Keyed arrangements may occur between a filter element and a filter housing, a filter and a filter base, and a filter base and a filter housing. A locking arrangement may be provided to prevent undesired loosening of a filter relative to a filter base. The filter base may include a torsion lock insert that engages lock detents of a filter to prevent the undesired loosening. An adaptor may be provided to provide the lock detents that interact with a torsion lock insert.