Hollow Filter Element Positioning Recess for Gas Filtration
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Solution Overview
Problem
Existing hollow filter elements face challenges in ensuring safe and precise assembly and reception within filter housings, particularly in maintaining correct positioning during installation.
Innovation Solution
The hollow filter element features a positioning element with a form-fit reception for the housing-associated blade in two different transverse directions, incorporating a positioning recess to ensure secure engagement and precise alignment, allowing for both radial and axial fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple positioning element is used at the end disk, then the device complexity is reduced, but the positioning precision and reliability of the filter element in the housing deteriorates
Solution Approach 1:
The positioning element is designed with an asymmetric geometry featuring a positioning recess that receives the blade in two different transverse directions. This asymmetric configuration provides precise positioning in multiple directions without requiring multiple separate positioning components, thus maintaining simplicity while achieving high positioning precision.
Solution Approach 2:
The positioning element extends beyond the end disk in the radial direction, creating a three-dimensional engagement structure. The blade engages the positioning element from a direction perpendicular to the end disk surface, adding a dimensional aspect that enables secure positioning without increasing the number of components.
2Manufacturing precision
If a positioning element with form-fit reception in two transverse directions is implemented, then the positioning precision is improved, but the device complexity increases
Solution Approach 1:
Multiple positioning functions are merged into a single positioning element. The element provides form-fit reception in two different transverse directions simultaneously, eliminating the need for separate positioning components for each direction and reducing overall device complexity while maintaining high positioning precision.
Solution Approach 2:
The positioning element serves multiple functions: it provides positioning in two transverse directions, engages with the blade for secure attachment, and extends radially to facilitate proper alignment during installation. This multi-functionality reduces the number of components needed while achieving precise positioning.
3Ease of operation
If the positioning element projects radially past the outer contour of the filter medium body, then the ease of operation during installation is improved, but the device complexity increases
Solution Approach 1:
The positioning element projects radially past the outer contour of the filter medium body before installation, creating a preliminary engagement feature. This allows the blade to engage the positioning element during the insertion process, guiding the filter element into its correct position and facilitating easy installation without requiring additional alignment operations.
Data Source
AI summary
A hollow filter element for insertion into an openable filter housing has a filter medium body configured as a hollow body surrounding an inwardly positioned flow space. At least one end disk is connected to the filter medium body and covers an axial end face of the filter medium body. A positioning element is arranged at the at least one end disk and interacts with a housing-associated blade of the filter housing. The positioning element receives the housing-associated blade with form fit in two different transverse directions relative to the longitudinal axis of the filter medium body. The positioning element has a positioning recess.