Filter Container with Integrated Snap-Fit Retaining Elements
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Solution Overview
Problem
Conventional filter assemblies for internal combustion engines have a high number of parts and increased assembly time due to separate filter media retaining components and fasteners, which complicate the maintenance and positioning of the filter media within the container.
Innovation Solution
A filter assembly with a filter container featuring integrated filter retaining elements, such as a circumferential ring with interruptions for fluid-flow clearance, and a snap-fit locking mechanism using an elastically deformable nose portion to securely hold the filter in place, reducing the need for additional fasteners and simplifying assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate filter media retaining components and fasteners are used, then the filter media can be securely held in the container, but the number of parts and assembly time increase
Solution Approach 1:
The patent integrates the filter retaining elements directly into the container wall, merging two previously separate functions (container housing and filter retention) into a single unified structure. This eliminates the need for separate retaining components and fasteners, reducing part count while maintaining secure filter positioning.
2Reliability
If separate filter media retaining components and fasteners are used, then the filter media can be securely held in the container, but the assembly time increases
Solution Approach 1:
By integrating retaining elements into the container wall during manufacturing, the patent eliminates multiple assembly steps involving separate retaining components and fasteners. The filter can be directly installed into the molded-in recesses, significantly reducing assembly time while ensuring reliable filter positioning.
3Device complexity
If integrated filter retaining elements are used, then the number of parts and assembly time are reduced, but the container structure becomes more complex
Solution Approach 1:
The retaining elements are integrated into the container wall as a single molded structure, combining multiple components into one manufacturing process. This approach reduces the total number of parts and assembly steps while the molding process itself handles the structural complexity, making the overall system easier to manufacture despite the integrated design.
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
The solution reduces the number of parts and assembly time by providing a secure, snap-fit locking mechanism that ensures proper positioning of the filter media within the container, enhancing ease of assembly and reducing the complexity of the filter assembly process.
Implementation Method 1
an elastically deformable nose portion extending radially inwardly from the inner surface of the container
Data Source
AI summary
A filter container includes a wall portion defining a cavity that is adapted to receive a filter. The wall portion includes an inner surface defining the cavity. One or more filter retaining elements integrally-extend from the inner surface that provides a shoulder having an interface surface for interfacing with the filter.