Mini-pleat V Cell Filter Burst Strength

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Solution Overview

Problem

Existing mini-pleat V bank filters suffer from lower burst strength, dust holding capacity, and structural integrity issues, particularly in high-pressure environments, leading to potential collapse and leakage, which is critical in applications like gas turbine air intake.

Innovation Solution

A single molded frame design with integrated plastic meshes and a polyurethane adhesive for the mini-pleat V cell filter, enhancing burst strength to withstand over 10,000 Pascal pressure and improving dust holding capacity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If traditional multi-part plastic frames are assembled together, then ease of manufacture is improved, but structural integrity and burst strength deteriorate

Engineering Contradiction:
Improveease of manufactureVSAvoidburst strength
Core Design Contradiction:
Ease of manufactureVSStrength

Solution Approach 1:

The patent merges multiple separate frame parts (top panel, bottom panel, side panels) into a single monolithic plastic frame structure. This eliminates the need for assembly joints and potting agents, providing continuous structural support around the filter media while achieving burst strengths exceeding 10,000 Pa, compared to traditional assembled frames that max out at 6,200 Pa.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of manufacture

If traditional assembled frames with potting agents are used, then ease of manufacture is improved, but reliability and leakage resistance worsen

Engineering Contradiction:
Improveease of manufactureVSAvoidleakage resistance
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The monolithic frame design eliminates all assembly joints and potting agent interfaces where leaks could occur. The single-piece construction ensures continuous sealing around the filter media, preventing dust and moisture leakage even under high pressure differentials, thereby significantly improving reliability in critical applications like gas turbine air intake.

Inventive Principle:
Principle #5Merging (Combining)

3Quantity of substance

If larger filter dimensions are used, then dust holding capacity is improved, but resistance to flow increases

Engineering Contradiction:
Improvedust holding capacityVSAvoidresistance to flow
Core Design Contradiction:
Quantity of substanceVSStress or pressure

Solution Approach 1:

The patent transitions from traditional flat panel filters to a three-dimensional V-bank configuration with pleated filter media arranged in a V-shape. This dimensional transformation increases the effective filtration surface area by approximately five times compared to flat filters of the same footprint, thereby increasing dust holding capacity while maintaining lower pressure drop and airflow resistance.

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

Data Source

PatentEP4401859B1Mini-pleat v cell filter
Publication Date: 2025.06.25 AEROFIL FILTERS INDIA PTE LTD
  • EP4401859B1 patent drawingFigure 1
  • EP4401859B1 patent drawingFigure 2
  • EP4401859B1 patent drawingFigure 3

AI summary

The present invention discloses a mini pleat V cell filter assembly. The V cell filter assembly comprises a top panel, a bottom panel and a middle frame; all of which are manufactured in a single mold. The plastic meshes which are part of the single molded frame. Each wall of the V structure securely encloses the pleated filter for stronger burst resistance. The single molded mini pleat V cell filter assembly structure provides an higher burst strength estimated to withstand 10,000 Pascal or more of pressure.