Filter Capsule Air Release Valve Protection
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Solution Overview
Problem
Existing filter capsules with air release valves are prone to breaking off during improper use and can damage outer packaging, leading to contamination and improper function.
Innovation Solution
A filter capsule design featuring a protective wall or tongue around the air release valve that protrudes laterally and vertically, providing additional protection against forces and ensuring easy operation, with the valve recessed to prevent protrusion and facilitate manual adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the air release valve is positioned at the highest point of the end cap, then air release function is improved, but the valve protrudes beyond the end cap wall causing susceptibility to breaking off and packaging damage
Solution Approach 1:
The air release valve is recessed into the end cap rather than protruding, changing the spatial dimension from external protrusion to internal integration. This dimensional change allows the valve to remain accessible for operation while eliminating the protrusion that causes breaking and packaging damage.
Solution Approach 2:
The air release valve is nested within the end cap structure, with the valve body positioned inside the end cap wall thickness. This nesting approach integrates the valve into the existing structure, providing protection while maintaining functionality.
2Ease of operation
If the air release valve protrudes beyond the end cap, then accessibility for operation is improved, but outer packaging is damaged and contamination risk increases
Solution Approach 1:
The valve is positioned in a recessed dimension within the end cap, creating a protected access point that maintains operational accessibility while eliminating external protrusion that damages packaging.
Solution Approach 2:
The end cap wall itself acts as an intermediary protective structure between the air release valve and the external environment, absorbing impacts and preventing direct contact between the valve and packaging materials.
3Strength
If the air release valve is recessed into the end cap, then protection against breaking and packaging damage is improved, but accessibility for manual operation may be reduced
Solution Approach 1:
The recess depth is optimized to provide sufficient protection while maintaining adequate access - not too deep to hinder operation, not too shallow to provide insufficient protection. The recess allows partial insertion of operating tools while preserving manual accessibility.
Solution Approach 2:
The end cap is designed with localized different properties: the recessed area provides protection and integration, while the opening of the recess maintains accessibility. Different zones of the end cap serve different functions - protection versus accessibility.
Data Source
AI summary
A filter capsule has a filter housing which, on at least one end face, has an end cap with an air release valve. A protective wall is formed on the end cap at a distance from the air release valve and protrudes beyond the air release valve.