Filter Head Connector Design for Secure Fluid Filter Attachment
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Solution Overview
Problem
Filter elements used in fluid separation systems have a limited useful life due to accumulating contaminants, which increases pressure drop and restricts fluid flow, necessitating frequent replacement and secure attachment to prevent unintentional disengagement.
Innovation Solution
A filter element with a filter head connector featuring a release portion for axial movement and a retainment portion that resists rotational disengagement, including a guide surface, recessed surface, and abutment to securely couple the filter element to the filter head, allowing for easy replacement and secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a connector is used to securely couple the filter element to the filter head, then reliability is improved, but device complexity increases
Solution Approach 1:
The connector is divided into functionally distinct portions: a guide surface portion for alignment and insertion, a retainment portion for securing the filter element, and a release portion for controlled disengagement. This segmentation allows each portion to perform its specific function efficiently while maintaining overall structural integration.
Solution Approach 2:
The connector transitions from a static structure to a dynamic one with multiple states: an inserted state where the filter element is secured, and a removed state where disengagement has occurred. The retainment and release portions enable controlled transitions between these states, providing secure attachment during operation and easy removal when needed.
2Reliability
If the connector resists rotational movement to prevent disengagement, then reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The connector provides rotational resistance only when necessary to maintain secure attachment during operation. When removal is needed, the release portion allows controlled disengagement with minimal effort. This dynamic behavior ensures reliability during use while maintaining ease of operation during replacement.
Solution Approach 2:
The release portion acts as an intermediary mechanism that mediates between the retainment portion's securing function and the user's removal action. It allows controlled disengagement when needed while maintaining strong retention during normal operation, bridging the contradiction between security and ease of removal.
3Reliability
If the filter element requires frequent replacement due to contaminant accumulation, then reliability is maintained, but loss of time increases
Solution Approach 1:
The filter system is segmented into a reusable filter head and a replaceable filter element. This allows the filter element to be independently replaced without replacing the entire assembly, reducing replacement time and loss while maintaining reliable separation performance through regular element replacement.
Solution Approach 2:
The filter element is designed to be discarded after filtering contaminants from the fluid, while the filter head is recovered and reused. This approach maintains reliable filtration performance by periodically replacing the saturated element while recovering the reusable components, minimizing time loss through efficient replacement cycles.
Data Source
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AI summary
Fluid filter elements and assemblies are used to separate contaminants from a fluid, such as oil or fuel, prior to reaching an engine. Fluid filter assemblies may comprise a housing, a filter element, and a filter head. The filter element may be disposed within the filter housing and enclosed by the filter head. Fluid enters the housing and passes through the filter element. The fluid may then exit the assembly. A connector may be used to connect the filter element to the filter head to ensure proper installation and simplify removal of a fouled filter element. The connector permits removable coupling of the filter element to the filter head and resists unintentional disengagement to securely couple the filter element to the filter head.