Filter Assembly With Reverse Protrusions for Foreign Substance Removal

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Solution Overview

Problem

Existing fluid systems face issues with foreign substances unintentionally blocking pumps and pipes due to inadequate filtration, leading to disrupted fluid flow.

Innovation Solution

A filter assembly with protrusions oriented opposite to fluid flow direction, combined with a pump system, effectively captures and removes foreign substances by increasing fluid pressure and speed to dislodge them.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional filter structure is used, then the fluid can flow through the system, but foreign substances may block the pump or pipe leading to disrupted fluid flow

Engineering Contradiction:

Improvefluid flow continuityVSAvoidforeign substance blockage

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The protrusions are oriented opposite to the moving direction of the fluid, allowing foreign substances to be effectively filtered as the fluid flows in the first direction while protrusions extend in the second direction. This inverted orientation enables the protrusions to intercept and remove foreign substances before they can block the pump or pipes.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The filter assembly with protrusions performs preliminary filtration of foreign substances before the fluid reaches the pump or pipes. By capturing and removing foreign substances in advance, the system prevents potential blockages and maintains continuous fluid flow.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If protrusions are added to filter foreign substances, then filtration effectiveness improves, but the device structure becomes more complex

Engineering Contradiction:

Improvefiltration effectivenessVSAvoidfilter assembly structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The filter assembly utilizes a plate with multiple protrusions that create a porous-like filtering structure. The protrusions are arranged to form gaps that allow fluid passage while intercepting foreign substances, achieving effective filtration without requiring complex porous materials or multi-layer structures.

Inventive Principle:

Principle #31Porous materials

Solution Approach 2:

The filtering function is segmented into multiple discrete protrusions rather than using a single complex filter element. Each protrusion acts as an independent filtering unit, and their collective arrangement provides comprehensive filtration while maintaining structural simplicity and ease of manufacturing.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20260061349A1Filter assembly and foreign substance discharge device including same

Publication Date: 2026.03.05 KIM E E

AI summary

Proposed is a filter assembly. The filter assembly includes: a housing configured to form a flow path for allowing a fluid to move in a first direction or a second direction opposite to the first direction; a plate inserted into the housing and formed therein with through-holes; and a plurality of protrusions protruding from the plate in the second direction.