Ring Filter Element Axial Groove Guide Contour Assembly
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Solution Overview
Problem
The assembly and disassembly of ring filter elements in filter devices are cumbersome, and the existing designs can lead to damage to the guide contour and guide element, resulting in incorrect functioning and potential use of unsuitable filter elements.
Innovation Solution
The implementation of multiple axial grooves and guide elements arranged according to a key-lock principle, where each guide element can only engage with a specific axial groove, ensuring secure and stable assembly and disassembly, and preventing tilting of the ring filter element.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single guide element and guide contour are used, then the structure is simple, but the assembly and disassembly of the ring filter element is difficult and can damage the guide components
Solution Approach 1:
The guide contour is divided into multiple segments (first guide contour portion, second guide contour portion, third guide contour portion) with each having different orientations. Correspondingly, multiple guide elements (first guide element, second guide element, third guide element) are distributed around the circumference, allowing the ring filter element to be guided from multiple directions during assembly and disassembly, reducing localized stress and damage risk.
Solution Approach 2:
Multiple guide elements and guide contour portions are combined to work together as an integrated guidance system. The guide elements are arranged at different angular positions (e.g., 0°, 120°, 240°) and collectively engage with the corresponding guide contour portions to provide comprehensive guidance during the assembly and disassembly process.
2Ease of operation
If force is applied to the filter assembly for mounting or dismounting, then the ring filter element can be installed or removed, but the guide contour and guide element can be damaged
Solution Approach 1:
The guide system is segmented into multiple distributed guide elements that share the mechanical load during assembly and disassembly operations. This distribution of force across multiple contact points prevents excessive stress concentration on any single guide element or guide contour portion, reducing the risk of damage.
Solution Approach 2:
The guide contour portions are designed with specific geometries (e.g., inclined surfaces, tapered sections) that gradually guide the ring filter element into position, cushioning the impact and reducing sudden force application that could damage the guide components.
3Device complexity
If the ring filter element is not securely guided, then the assembly is simple, but tilting occurs and proper functioning is impaired
Solution Approach 1:
Different portions of the guide contour have different orientations and geometries tailored to specific local requirements. For example, the first guide contour portion may be oriented vertically to guide initial insertion, while the second and third portions are oriented at angles to prevent tilting and ensure proper alignment, providing localized guidance quality where needed.
Solution Approach 2:
The guide elements and guide contour portions are arranged asymmetrically at specific angular positions around the circumference rather than uniformly distributed. This asymmetric arrangement creates specific engagement points that effectively prevent tilting and ensure the ring filter element assumes the correct orientation in the filter housing.
Data Source
Figure 1~3
Figure 4~5d
Figure 6~8
AI summary
The present invention relates to a filter appliance (1) having a filter housing (2) and a ring filter element (3) that is mountable into the filter housing (2), wherein the ring filter element (3) has, on a lower end disc (4) an axially protruding pin (5) which in the assembled state engages into a channel (6) of the filter housing (2). It is essential to the invention in this case that for mounting the ring filter element (3) into the filter housing (2), a guide contour (15) and two guide elements (17, 18) are provided, wherein the guide contour has at least two axial grooves (19, 20). In this case the respective guide element (17, 18) is constructed so as to be complementary to such an associated axial groove (19, 20), in such a manner, that the guide contour (15) interacts with the axial grooves (19, 20) and the guide elements (17, 18) according to the lock and key principle.