External Brace Reinforcement for Filter Media Structural Integrity
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Solution Overview
Problem
Panel-type air filter elements in internal combustion engines are prone to tearing or rupturing due to bowing or flexing under airflow, which also increases pressure drop and restricts air flow.
Innovation Solution
A brace with a frame and stabilizers is designed to wrap around the filter media packs, providing support and stability by interacting with the filtration system housing to prevent excessive bowing and enhance structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If filter media panels are made larger to increase filtration area, then filtration capacity is improved, but the panels become more susceptible to bowing and flexing under airflow
Solution Approach 1:
The filter element is divided into multiple panels arranged in a V-shape configuration. Each panel is supported by internal frames and cross-bracing structures that segment the large filtration area into smaller, structurally stronger sections. This segmentation allows the filter to maintain large total filtration area while preventing individual panels from bowing or flexing under airflow pressure.
2Loss of energy
If filter media panels are made thinner to reduce restriction, then pressure drop is reduced, but the panels become more prone to tearing or rupturing
Solution Approach 1:
The filter element uses composite construction combining thin filter media panels with rigid frame structures and support braces. The frames and cross-bracing elements provide structural reinforcement that prevents panel tearing and rupture, allowing the use of thinner, lower-resistance filter media while maintaining panel durability and reliability under operating conditions.
3Strength
If internal frames are added to support filter media panels, then structural strength is improved, but device complexity increases
Solution Approach 1:
The filter element employs a V-shaped panel configuration with frames that follow curved or angled geometries rather than simple rectangular shapes. This curved design provides structural strength to prevent panel bowing while being more efficient and less complex than adding multiple straight cross-bracing elements throughout the filter assembly.
4Productivity
If filter panels are designed to allow high airflow, then productivity is improved, but the panels experience greater bowing and flexing under airflow
Solution Approach 1:
Rigid frames and support braces are pre-installed within the filter element structure before the filter media panels are attached. These support structures are positioned in advance to prevent panel bowing and flexing from occurring during high airflow operation, maintaining panel shape stability while allowing high productivity airflow rates through the filter.
Data Source
AI summary
An external brace for a filter element is described. The brace is configured to wrap around an exterior of a filter element having a filter media pack. The brace helps to support the filter media pack during filtering operations by preventing outward flexing of the filter media pack caused by fluid flowing through the filter media. In some arrangements, the brace interfaces with a filtration system housing to provide additional support to the filter element.