Nested Manifold for Compact Bulk Fluid Filtration

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Solution Overview

Problem

Existing bulk filtration systems for fluids like fuel and oil are large, cumbersome, and heavy, making them inefficient for cleaning heavily contaminated fluids without interrupting the fluid flow.

Innovation Solution

A compact manifold arrangement that connects multiple filters in parallel flow, allowing for high-flow rate filtration without the need for cumbersome installations, featuring a first pipe with inlet and outlet sections and a second pipe with filter engaging apertures, enabling in-line installation and easy servicing of filters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional bulk filtration systems are used, then filtration capacity is sufficient, but the system becomes large, cumbersome, and heavy

Engineering Contradiction:
Improvefiltration capacityVSAvoidsystem weight
Core Design Contradiction:
ProductivityVSWeight of stationary object

Solution Approach 1:

The first pipe is positioned within the second pipe interior volume, creating a nested configuration where the inlet/outlet pipe is housed inside the filter engagement pipe. This nesting arrangement consolidates multiple functional components into a compact structure, reducing overall system size and weight while maintaining filtration capacity.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The manifold arrangement merges the inlet/outlet function (first pipe) with the filter engagement function (second pipe) into a single integrated structure. By combining these functions and arranging filters in parallel flow, the system achieves high filtration capacity without requiring separate, bulky components for each function.

Inventive Principle:
Principle #5Merging (Combining)

2Productivity

If traditional bulk filtration systems are used, then filtration capacity is sufficient, but the system becomes large and cumbersome

Engineering Contradiction:
Improvefiltration capacityVSAvoidsystem size
Core Design Contradiction:
ProductivityVSLength of stationary object

Solution Approach 1:

The nested pipe configuration places the first pipe (inlet/outlet) within the second pipe (filter engagement), creating a compact, space-efficient structure. This reduces the overall length and volume of the filtration system while maintaining sufficient filtration capacity through parallel filter arrangement.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent utilizes three-dimensional spatial arrangement by nesting pipes concentrically and arranging filters in parallel flow around the manifold. This dimensional optimization allows the system to achieve high filtration capacity in a compact footprint, reducing overall system size without sacrificing productivity.

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

3Productivity

If multiple filters are connected in parallel, then high flow rate is achieved, but system complexity increases

Engineering Contradiction:
Improveflow rateVSAvoidmanifold complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The first pipe serves multiple functions: it acts as the inlet conduit, outlet conduit, and structural support for the entire filter assembly. The second pipe similarly serves as both the filter engagement structure and the housing for the first pipe. This multi-functionality reduces the number of separate components needed, simplifying the manifold structure while maintaining high flow rate capability through parallel filter configuration.

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

Solution Approach 2:

The manifold is segmented into two distinct but integrated pipe structures (first pipe for inlet/outlet, second pipe for filter engagement), each with specific apertures and functions. This segmentation allows for modular assembly and maintenance of parallel filters while keeping the overall manifold structure organized and manageable, reducing operational complexity.

Inventive Principle:
Principle #1Segmentation

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 solution provides a lightweight (27.2 kg) and efficient filtration system capable of processing up to 1892.7 liters per minute, offering faster filtration with reduced size and weight compared to traditional systems, while allowing for easy maintenance without stopping fluid flow.

Implementation Method 1

Each of the filters has filter media with an upstream side and a downstream side

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentEP2701822B1Manifold arrangement, filter arrangement, and methods of bulk fluid filtration
Publication Date: 2021.12.29 DONALDSON CO INC
  • EP2701822B1 patent drawingFigure 1
  • EP2701822B1 patent drawingFigure 2
  • EP2701822B1 patent drawingFigure 3

AI summary

A filter for use with bulk filtration includes filters arranged in parallel flow and a manifold arrangement. The manifold arrangement has a first pipe within a second pipe. An inlet channel conveys unfiltered fluid to the filters, and an outlet channel conveys filtered fluid from the filters. The inlet channel is an interior volume between an outside surface of the first pipe and an inside surface of the second pipe. The outlet channel is an interior volume of the first pipe. Methods of servicing and filtering are provided.