Contoured Filter Cartridge Seal for Reconfigurable Housing

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Solution Overview

Problem

Current filter cartridges and assemblies face challenges in maintaining a positive seal and easy servicing across various engine compartments, particularly due to complexity and size constraints, which affects their installation and maintenance.

Innovation Solution

The development of filter cartridges with contoured end members featuring axially undulating wave profiles and radially directed seal surfaces, combined with reconfigurable filter housing assemblies that include snap-in connections and pivotable cover members, ensures proper alignment and sealing while allowing for flexible installation and maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a single filter system design is used across different engine compartments, then manufacturing cost is reduced, but the system may not fit all locations and proper sealing may be compromised

Engineering Contradiction:
Improvemanufacturing costVSAvoidfitment across different engine compartments
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The filter housing assembly is designed with a reconfigurable fluid port component that can be attached to different openings (first or second opening) of the housing body, allowing the same filter system to adapt to various engine compartment configurations while maintaining proper sealing and functionality

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Volume of moving object

If the filter housing is made compact to reduce size, then space efficiency is improved, but servicing and installation become more difficult

Engineering Contradiction:
Improvefilter housing sizeVSAvoidservicing and installation ease
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The filter housing assembly is divided into separable components: a housing body and a reconfigurable fluid port component that can be attached or detached. This segmentation allows the compact housing to be serviced easily by removing the fluid port component, while still maintaining a space-efficient design when assembled

Inventive Principle:
Principle #1Segmentation

3Reliability

If the seal surface is made complex to ensure positive sealing, then sealing reliability is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvesealing reliabilityVSAvoidseal surface complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The seal surface is designed with a contoured (curved) profile that mates with a corresponding contoured surface on the filter cartridge. This curved geometry ensures positive sealing through surface conformity while being manufacturable using standard molding or machining processes, avoiding excessive complexity

Inventive Principle:
Principle #14Spheroidality (Curvature)

Data Source

PatentEP4140564B1Air cleaner with high performance seal and media
Publication Date: 2024.05.08 PARKER HANNIFIN CORP
  • EP4140564B1 patent drawingFigure 1
  • EP4140564B1 patent drawingFigure 2
  • EP4140564B1 patent drawingFigure 3

AI summary

A filter cartridge and filter assembly using the filter cartridge is provided. The filter cartridge having a contoured end member to angularly orient and/or axially orient the filter cartridge, and particularly a seal thereof, relative to a filter housing. The filter housing is reconfigurable to allow it to be used in different locations having different spatial configurations.