Filter Element With Interlocking Housing Seal
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Solution Overview
Problem
Existing filter elements in internal combustion engines often require periodic replacement due to the capture of particulates, and using unauthorized filters can lead to a poor or no seal, causing intake air to bypass the filter and potentially damage the engine.
Innovation Solution
A filter element design featuring first and second filter media secured by a frame member, with a seal member that includes a U-shaped channel to form a seal with the housing, ensuring proper installation and preventing air bypass.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a filter element is removably received in the housing to allow periodic replacement, then the filter element can be maintained and replaced as it captures particulates, but the seal between the filter element and housing may be poor or nonexistent, allowing intake air to bypass the filter element
Solution Approach 1:
The patent applies preliminary action by pre-configuring the filter element with a frame member that has an integrated U-shaped channel seal structure before installation. This seal structure is positioned and shaped in advance to mate with the housing ridge, ensuring proper sealing engagement is achieved automatically upon installation without requiring additional sealing steps or adjustments.
Solution Approach 2:
The patent uses the frame member as an intermediary structure that bridges the filter media and the housing. The frame member includes a U-shaped channel that acts as a mediator between the filter element and housing, creating a sealing interface that prevents air bypass while allowing the filter element to be removably installed for periodic replacement.
2Ease of operation
If the filter element uses a simple structure for easy installation, then the filter element can be easily replaced, but it may not provide adequate sealing to prevent air bypass
Solution Approach 1:
The patent merges the frame structure and sealing function into a single integrated component. The frame member combines structural support functions with sealing functions by incorporating the U-shaped channel directly into the frame structure, eliminating the need for separate sealing components and simplifying installation while preventing air bypass.
Solution Approach 2:
The patent employs a flexible seal member with a U-shaped channel that can deform to conform to the housing ridge surface. This flexible sealing structure adapts to manufacturing tolerances and surface irregularities, creating an effective seal that prevents air bypass while maintaining ease of installation through its compliant nature.
Data Source
AI summary
A filter element includes first filter media, second filter media, a frame, and a seal member. The frame is coupled to the first filter media and the second filter media, the frame securing the first filter media and the second filter media into a V-shape. The seal member is attached to and extends from the frame. The seal member includes a U-shaped channel structured to receive a ridge of a housing when the filter element is installed in the housing. The seal member is structured to form a seal between the filter element and the housing when the filter element is installed in the housing.