Adaptive Filter Element for Irregular Gas Housing

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Solution Overview

Problem

Existing filter elements face challenges in achieving high filtration performance due to limitations in adapting to non-cuboid filter housings and irregular geometries, leading to incomplete filling of the receiving space and reduced filtration efficiency.

Innovation Solution

A filter element design featuring a filter medium body with a sealing or support element on both sides, allowing for non-parallel and non-straight configurations, and the use of adhesive beads to distribute holding forces, enabling optimal adaptation to various installation situations and increased filtration performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the filter element is designed with a straight-surfaced filter medium body, then the structure is simple, but the filter element cannot completely fill irregular receiving spaces in the filter housing

Engineering Contradiction:
ImproveAdaptability to irregular filter housing geometriesVSAvoidComplexity of filter element structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The filter medium body is divided into multiple sections (first section, second section, third section) with different orientations and distances from the inflow side, allowing each segment to adapt to different regions of the irregular receiving space while maintaining overall structural coherence

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The filter element transitions from a two-dimensional flat structure to a three-dimensional multi-section structure with varying distances from the inflow side, enabling the filter to conform to irregular spatial geometries and completely fill the receiving space

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If the filter element is pressed into its seat with holding forces, then the filter element is securely supported, but the filter medium body may be damaged

Engineering Contradiction:
ImproveSecure support of filter elementVSAvoidRisk of damage to filter medium body
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The sealing or support element is extracted as a separate component from the filter medium body, allowing it to bear the holding forces and protect the filter medium body from direct mechanical stress and damage

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The sealing or support element acts as an intermediary between the filter medium body and the filter housing, absorbing and distributing holding forces to prevent damage to the filter medium body while ensuring secure support

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3419737B1Filter element, in particular for gas filtration
Publication Date: 2021.04.07 MANN HUMMEL GMBH
  • EP3419737B1 patent drawingFigure 1
  • EP3419737B1 patent drawingFigure 2
  • EP3419737B1 patent drawingFigure 3~4

AI summary

A filter element has a filter medium body which is provided with a sealing or supporting element on both the inflow side and the outflow side. The inflow side or the outflow side lies on one plane and the opposite side has at least two sections that are at different distances from the inflow or outflow side lying on said plane.