Integral Breather Filter Element for Cleaner Hydraulic Replacement
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Solution Overview
Problem
Current filter elements in hydraulic systems require separate replacement of breather filters when replacing the filter, leading to increased complexity and potential contamination from ambient moisture and debris, as they do not inherently integrate the breather filter within the filtration system.
Innovation Solution
A filter element design that integrates a breather filter within the filter cover and housing, ensuring the breather filter is replaced simultaneously with the filter element, featuring a tortuous airflow pathway and optional desiccant or regenerative hygroscopic filter to manage moisture and debris, with spacers and seals to enhance sealing and airflow management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If separate breather filter replacement is required, then maintenance complexity increases, but system reliability is maintained through dedicated component replacement
Solution Approach 1:
The breather filter is integrated into the filter element assembly, combining what were previously separate components (filter element and breather filter) into a single replaceable unit. This merging eliminates the need for separate breather filter replacement procedures while maintaining system reliability through unified component replacement.
Solution Approach 2:
The integrated filter element serves multiple functions: primary filtration through the filter media and breathable moisture management through the integrated breather filter. This multi-functional design allows a single component to perform both filtration and breathing functions, reducing overall system complexity.
2Adaptability or versatility
If breather filter is separate from filter element, then component versatility is improved, but contamination risk from ambient environment increases
Solution Approach 1:
By integrating the breather filter directly into the filter element housing, the design eliminates the exposure gap that exists when separate components are used. The unified structure ensures that the breather filter is always protected by the same sealing mechanisms as the main filter element, reducing contamination risk while maintaining design flexibility.
3Ease of operation
If integral breather filter design is used, then ease of operation is improved through simplified replacement, but device complexity increases due to integrated structure
Solution Approach 1:
The filter element assembly is designed as a segmented, modular unit that can be easily removed and replaced as a complete assembly. This segmentation approach allows the integrated breather filter and filter media to be handled together as a single serviceable unit, simplifying maintenance operations despite the integrated internal structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This integrated design simplifies filter replacement, reduces contamination risk, and maintains system integrity by ensuring the breather filter is replaced in tandem with the filter element, effectively managing airflow and moisture ingress.
Implementation Method 1
The breather filter housing defines a first tortuous airflow pathway between an ambient environment and the first flow face, and the filter cover defines a second tortuous airflow pathway between the ambient environment and the second flow face
Implementation Method 2
the breather filter has a desiccant
Implementation Method 3
the breather filter has a regenerative hygroscopic filter
Implementation Method 4
filter media extending between the first endcap and the second endcap
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
The technology disclosed herein relates to a filter element having a first endcap, a second endcap, and filter media extending between the first endcap and the second endcap. The filter media defines a central opening and is coupled to the first endcap and the second endcap. A filter cover is coupled to the first endcap, and a breather filter is integral to the filter cover. The breather filter defines a first flow face and a second flow face. The filter element defines an airflow pathway from ambient environment through the first flow face and the second flow face.