Remote Leak Indication Using Wicking in Confined Fluid Interfaces

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Solution Overview

Problem

Conventional fluid sensor systems are ineffective in detecting small volumes of leaked fluid in close proximity to fluid-sensitive parts due to space constraints, leading to slower detection speeds and increased damage to sensitive components.

Innovation Solution

A fluid detection system utilizing a wicking material to draw fluid from a first location to a second location, where a remote fluid indicator undergoes a detectable alteration, detected by an optical sensor without physical contact, allowing for efficient fluid detection in confined spaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual fluid management is used, then flexibility and adaptability are maintained, but labor intensity increases and consistency deteriorates

Engineering Contradiction:
Improvemanual operation flexibilityVSAvoidfluid management efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The system enables self-service through automated fluid management where the machine monitors and manages its own fluid levels, filtering, and disposal without requiring manual intervention. The automated fluid management system continuously monitors fluid levels, filters fluids automatically, and manages waste disposal, freeing operators from manual labor while maintaining operational flexibility.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical fluid management operations with an automated electronic control system. Sensors detect fluid levels and conditions, and electronic controls automatically activate pumps, filters, and disposal mechanisms, substituting manual mechanical operations with automated electromechanical systems that maintain consistency and reduce labor intensity.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If automated fluid management is implemented, then consistency and reliability improve, but system complexity increases

Engineering Contradiction:
Improvefluid management consistencyVSAvoidautomation system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The automated fluid management system performs multiple functions through integrated components: fluid level monitoring, filtration, pumping, waste disposal, and alert generation are all handled by a single unified system. This multi-functionality reduces the need for separate manual systems and simplifies overall operation despite the increased automation capability.

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

Solution Approach 2:

The system uses intermediaries such as sensors, control units, and automated mechanisms to mediate between the fluid management needs and the operator. These intermediaries handle the complex monitoring and control functions, allowing the operator to maintain simplicity in operation while the system manages the complexity of automated fluid management.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If frequent manual fluid changes are performed, then fluid freshness is maintained, but time consumption increases

Engineering Contradiction:
Improvefluid freshnessVSAvoidtime for fluid management
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The automated system ensures continuous fluid management by continuously monitoring fluid levels, filtering fluids continuously, and automatically replacing fluids when necessary. This eliminates the interruptions and time losses associated with manual fluid changes, maintaining continuous operational efficiency while ensuring fluid freshness through automated monitoring and replacement.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The system employs feedback mechanisms where sensors continuously monitor fluid conditions and provide information to the control system. When fluids require replacement or filtering, the system automatically responds without requiring operator intervention, thereby maintaining fluid freshness while eliminating the time consumption of manual monitoring and fluid changes.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3908818B1Fluid management system and method
Publication Date: 2026.05.20 ILLUMINA INC
  • EP3908818B1 patent drawingFigure 1
  • EP3908818B1 patent drawingFigure 2
  • EP3908818B1 patent drawingFigure 3

AI summary

A fluid detection system includes a wicking material to draw fluid away from a first location with space limitations and proximate to a fluid device or a fluid interface. The wicking material draws the fluid to a remote fluid indicator at a second location. Contact between fluid and the remote fluid indicator produces a detectable alteration to the remote fluid indicator, and a non-contact optical sensor detects the alteration.