Filter Assembly Compression Ring Channels Fluid Flow

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Solution Overview

Problem

Conventional filter assemblies require frequent replacement to maintain fluid flow efficiency, leading to increased costs and performance limitations due to unacceptably high impedance in fluid flow paths.

Innovation Solution

A filter assembly design incorporating a body of filter media, a seal, and a compression ring with channels that allow fluid communication, enhancing fluid flow while preventing unfiltered fluid from bypassing the filter media, thereby reducing impedance and extending the assembly's operational lifespan.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional filter assemblies are used, then fluid filtration is achieved, but fluid flow impedance increases over time requiring frequent replacement

Engineering Contradiction:
Improvefilter assembly operational lifespanVSAvoidfluid flow efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The filter assembly is segmented into distinct functional zones: a first fluid passage for unfiltered fluid flow, a second fluid passage for filtered fluid flow, and a third fluid passage for bypass flow. The compression ring is segmented with multiple channels distributed around its circumference, creating multiple parallel flow paths that distribute fluid flow and reduce impedance across the filter media surface area.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The compression ring acts as an intermediary component between the filter media and the housing. It provides structural support while incorporating channels that facilitate fluid communication between different zones. The seal member acts as an intermediary ensuring proper sealing between components while allowing the compression ring to maintain compression on the filter media.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If filter media is used to remove impurities, then fluid purification is achieved, but flow path impedance increases requiring periodic replacement

Engineering Contradiction:
Improvefilter media service lifeVSAvoidfluid flow energy loss
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

Different regions of the filter assembly have different functional qualities. The compression ring has channels at specific locations (e.g., first channel in the first end surface, second channel in the side surface) to create localized flow paths. The seal member is positioned specifically to seal around the filter media circumference. This localized functionality optimizes flow distribution across the filter media, reducing energy loss while maintaining purification effectiveness.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The compression ring utilizes three-dimensional space by having channels in both the end surface (axial direction) and side surface (radial direction). This multi-dimensional channel arrangement creates complex fluid communication paths that reduce impedance by distributing flow across multiple dimensions rather than relying on a single flow path through the filter media.

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

3Productivity

If compression ring with channels is added, then fluid communication is improved, but device complexity increases

Engineering Contradiction:
Improvefluid flow efficiencyVSAvoidfilter assembly structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The compression ring serves multiple functions simultaneously: it compresses the filter media against the housing to ensure sealing, it provides structural support to the filter assembly, and it creates fluid communication channels between different zones. The seal member also serves multiple functions: sealing the interface between the filter media and housing, and guiding the compression force uniformly across the filter media circumference. This multi-functionality reduces the need for separate components, simplifying the overall device structure.

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

Solution Approach 2:

The compression ring merges the compression function and the fluid distribution function into a single component. Instead of having separate compression elements and separate fluid distribution elements, the compression ring incorporates channels directly into its structure, allowing it to perform both mechanical compression and fluid routing functions simultaneously. This merging reduces the number of parts and simplifies assembly.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The design improves fluid flow efficiency and reduces the need for frequent replacements by allowing fluid communication through strategically placed channels in the compression ring, maintaining performance and reducing operational costs.

Implementation Method 1

The compression ring may include a first channel configured to allow fluid communication between the second end surface and the outer surface

Methodology Applied
Scientific EffectFluid communication through channels:

Data Source

PatentUS12036494B2Filter assembly
Publication Date: 2024.07.16 MANN & HUMMEL FILTRATION TECHNOLOGY US LLC
  • US12036494B2 patent drawing
  • US12036494B2 patent drawing
  • US12036494B2 patent drawing

AI summary

A filter assembly includes a body of filter media, a seal, and a compression ring. The body of filter media having a first end surface, a second end surface spaced apart from and opposing the first end surface, and an outer surface extending between the first end surface and the second end surface. The seal surrounds the first end surface. The compression ring is disposed about the second end surface. The compression ring includes a first channel configured to allow fluid communication between the second end surface and the outer surface.