Integrated Abrasion-Resistant Barrier for Filter Media Wear
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Solution Overview
Problem
Internal combustion engine systems are prone to damage from particulate matter due to filter media wear caused by engine vibrations, leading to premature failure and bypass of contaminants.
Innovation Solution
A filter element design incorporating a media pack with an abrasion-resistant barrier coupled to formed filter media, supported by a center tube, and reinforced with adhesive beads to reduce vibration-induced wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If filter media is used without an abrasion resistant barrier, then the filter element has simpler structure and lower manufacturing cost, but the filter media suffers from wear and tear due to engine vibrations, leading to premature failure
Solution Approach 1:
The patent applies composite materials by combining the formed filter media with an abrasion resistant barrier layer. This composite structure integrates two materials with different properties: the filter media for particle capture and the abrasion resistant barrier for wear protection, thereby improving reliability without significantly increasing complexity
Solution Approach 2:
The abrasion resistant barrier acts as an intermediary layer between the formed filter media and the support body. This intermediate layer protects the filter media from direct contact and wear caused by engine vibrations, extending the service life of the filter element
2Reliability
If filter media is exposed to engine vibrations without protection, then the structure remains simple, but the filter media experiences wear and tear causing premature failure and contaminant bypass
Solution Approach 1:
The patent applies composite materials by combining the formed filter media with an abrasion resistant barrier layer. This composite structure integrates two materials with different properties: the filter media for particle capture and the abrasion resistant barrier for wear protection, thereby improving reliability without significantly increasing complexity
Solution Approach 2:
The abrasion resistant barrier acts as an intermediary layer between the formed filter media and the support body. This intermediate layer protects the filter media from direct contact and wear caused by engine vibrations, extending the service life of the filter element
3Reliability
If adhesive beads are used to couple the abrasion resistant barrier to the formed filter media, then the barrier remains securely attached during vibration, but the manufacturing process becomes more complex
Solution Approach 1:
The patent applies parameter changes by selecting adhesive beads with specific properties (material composition, size, distribution pattern) that optimize both attachment strength and manufacturing efficiency. The adhesive beads are applied in a controlled manner during the forming process, balancing manufacturing complexity with attachment reliability
Data Source
AI summary
A filter element includes a media pack and a support body. The media pack may be arranged in an enclosed shape defining a central cavity. The media pack includes a formed filter media and an abrasion resistant barrier coupled to the formed filter media. The support body is disposed within the central cavity. The abrasion resistant barrier separates the media pack from the support body. In some instances, the media pack also includes a plurality of adhesive beads disposed between the abrasion resistant barrier and the formed filter media and coupling the abrasion resistant barrier to the formed filter media.