Filter Housing Latch Tab Alignment and Sealing
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Solution Overview
Problem
Filter systems face challenges in preventing fluid bypass and ensuring proper component alignment and securement, particularly in the interaction between filter housings and cartridges, which can lead to inefficiencies and improper filter usage.
Innovation Solution
The filter system incorporates a housing with a support flange and a latch mechanism that secures a cover member to the housing body using a tab, ensuring that the filter is properly seated and aligned, with features like a radially projecting tab and annular seal to prevent bypass and facilitate easy filter replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional mounting components and sealing arrangements are used, then the filter system can secure filters in the housing, but the system becomes more complex and difficult to service
Solution Approach 1:
The patent combines the mounting function and sealing function into a single integrated filter cartridge design. The filter cartridge includes an integrated seal that directly engages with the housing, eliminating the need for separate mounting components and multiple sealing elements. This merging reduces the number of parts while maintaining reliable filter securing and sealing.
Solution Approach 2:
The filter cartridge is designed to perform multiple functions simultaneously: filtration, sealing, and mounting. The single cartridge unit serves as both the filter element and the sealed mounting component, engaging with the housing to provide both structural support and fluid tight sealing in one integrated component.
2Ease of operation
If filters are made easily removable for maintenance, then servicing becomes simpler, but the risk of improper installation and bypass increases
Solution Approach 1:
The filter cartridge is pre-configured with integrated sealing elements and alignment features during manufacturing. The seal is pre-positioned on the cartridge body with precise geometry that ensures proper engagement with the housing grooves. This preliminary preparation ensures that when the filter is installed, it automatically achieves correct alignment and sealing without requiring complex installation procedures or tools.
Solution Approach 2:
The integrated seal acts as an intermediary element between the filter cartridge and the housing. This seal provides a dedicated interface that guides the filter into proper position while preventing bypass. The seal's geometry mediates the connection, ensuring that easy removal does not compromise sealing integrity.
3Loss of time
If the housing design allows quick filter access, then maintenance time is reduced, but component alignment and securement become more difficult
Solution Approach 1:
The filter cartridge and housing feature asymmetric alignment elements such as offset lugs, keyed interfaces, or non-circular sealing surfaces. These asymmetric features provide built-in alignment guidance that ensures the filter can only be installed in the correct orientation. The asymmetric design simplifies the installation process by preventing misalignment while maintaining precise component positioning.
Data Source
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AI summary
A filter system and filters and housing components for use in the filter system are provided. The filter system includes at least one filter received within a housing having a cover and a housing body. The filter includes at least one latch tab engaged by the cover to secure the cover. First and second seals seal the system. The latch tab extends axially beyond a catch of the housing body. A filter system is also provided that includes a pre-cleaner through which fluid moves in a first direction different than a second direction as the fluid flows through the filters thereof. Methods of servicing the filter system are also provided.