Filter Element Fastening Region for Axial Stability and Easy Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing filter elements for fluid purification face challenges in axial clearance reduction during removal from filter housings, leading to potential delays and fluid leakage due to bonding or cementing issues with the filter housing.
Innovation Solution
A filter element with a flexible fastening region that hardens over time, forming a form-fit connection with a holding element in the insertion adapter, allowing for axial stability and easy removal without axial clearance, and an insertion adapter with holding elements and a locking mechanism to secure the filter element in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the insertion adapter is secured with bonding or cementing to the filter housing, then the axial stability is improved, but the removal process is delayed and becomes difficult
Solution Approach 1:
The fastening region transitions from a flexible state during installation to a hardened state after installation, dynamically changing its mechanical properties to provide stability during operation while enabling easy removal later. This dynamic transformation resolves the contradiction between achieving strong bonding for stability and maintaining easy removability.
Solution Approach 2:
The material properties of the fastening region are changed over time - initially flexible to allow insertion, then hardening to provide stability. This parameter change enables the system to achieve both strong axial stability during operation and easy removal when needed, resolving the contradiction between these two requirements.
2Strength
If the fastening region material is initially rigid, then the structural strength is improved, but the insertion process becomes difficult and may cause damage
Solution Approach 1:
The fastening region material dynamically changes its mechanical properties from flexible during insertion to rigid after insertion. This dynamic transformation allows easy insertion followed by strong structural support, resolving the contradiction between insertion ease and structural strength.
Solution Approach 2:
The material parameters of the fastening region are changed over time - starting flexible for easy insertion, then hardening to provide structural strength. This parameter transformation enables both easy manufacturing/insertion and strong structural integrity to be achieved sequentially.
3Ease of operation
If the insertion adapter has axial clearance in the fastening region, then the ease of insertion is improved, but the axial stability during operation deteriorates
Solution Approach 1:
The fastening region transitions from a flexible state that allows axial clearance during insertion to a hardened state that eliminates clearance and provides axial stability during operation. This dynamic transformation resolves the contradiction between insertion ease and operational stability.
Solution Approach 2:
The material parameters of the fastening region change from flexible to rigid, transforming the clearance condition from acceptable during insertion to eliminated during operation. This parameter change enables both easy insertion with clearance and stable operation without clearance.
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
Enables direct and immediate removal of the filter element with the insertion adapter, preventing fluid leakage and ensuring efficient drainage control by forming a stable form-fit connection that maintains axial stability and reduces the risk of adapter displacement.
Implementation Method 1
the material of the at least one fastening region on a side which is facing the interior opening is flexible when manufacturing the filter element and hardens later on
Data Source
AI summary
A filter element arranged exchangeably in a filter housing of a filter has a filter medium delimiting an element interior. An end body arranged at the filter medium has a fastening region surrounding the interior opening that communicates with the element interior. An insertion adapter for connecting the filter element to a fluid connector of the filter housing has an insertion sleeve insertable axially into the fastening region of the end body. The inward side of the fastening region is provided with a material that is initially flexible during manufacture of the filter element and hardens later on. The insertion sleeve has a holding element radially outwardly arranged at the circumference. With inserted insertion sleeve, the holding element is arranged in the fastening region. The initially flexible material of the fastening region flows behind the holding element and forms a form fit connection with the holding element when hardened.