Filter Stabilizing Ring for Pleated Media Pulsation Control
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Solution Overview
Problem
Filter systems with pleated filter media experience pulsations due to lateral fluid flow, leading to noise generation, which needs to be mitigated.
Innovation Solution
A filter system with a stabilizing ring attached to the filter medium, positioned centrally within the inflow cross-section of the fluid inlet, to stabilize the filter medium and prevent pulsations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If lateral fluid flow is supplied to the filter element, then the filter medium can be effectively cleaned, but pulsations occur in the pleats leading to noise generation
Solution Approach 1:
The stabilizing ring is positioned specifically within the inflow cross-section area of the fluid inlet, creating a localized stabilization zone where fluid flow first contacts the filter medium. This local intervention prevents pulsations at the critical inlet region while maintaining overall filter performance.
Solution Approach 2:
The stabilizing ring pre-stabilizes the filter medium pleats before the full fluid flow impacts them. By establishing initial structural support in the inflow cross-section, the ring prevents subsequent pulsations and noise generation during normal operation.
2Object-generated harmful factors
If a stabilizing ring is added to prevent pulsations, then noise is reduced, but device complexity increases
Solution Approach 1:
The stabilizing ring is constructed as a thin, flexible element that can be easily attached to the filter medium. This thin-film approach provides effective stabilization without adding significant structural complexity or material volume to the filter element.
Solution Approach 2:
The stabilizing ring is designed as a simple, inexpensive component that can be easily manufactured and attached. Its straightforward design allows for cost-effective production and potential replacement if needed, minimizing the impact on overall device complexity.
Data Source
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AI summary
The invention relates to a filter system (1), comprising: - a filter housing (2), which comprises a fluid inlet (29) for letting fluid (L) into the filter housing (2); and - a filter element (3), which is removably accommodated in the filter housing (2) and which comprises a pleated filter medium (5) and a stabilizing ring (6) that stabilizes the filter medium (5); wherein the stabilizing ring (6) is mounted on the filter medium (5) such that the stabilizing ring (6) is located at least partly within an inflow cross-sectional area (A) of the fluid inlet (29); and wherein the fluid (L) is directly incident on the filter medium (5) during operation of the filter system (1).