Aerial Refueling Pressure Indication via Infrared Flashing

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Solution Overview

Problem

During aerial refueling, it is challenging to obtain real-time information about the fueling process, as data collected during the process is typically stored on a device that can only be accessed and analyzed after the tanker has landed, leading to delayed analysis.

Innovation Solution

An aerial refueling assembly that includes a fuel line, a drogue assembly with a pressure transducer and infrared light sources, and a processor that senses fuel pressure and controls the light sources to flash in a pattern indicative of the pressure, allowing real-time visual indication of fuel pressure through cameras and displays.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If data is collected and stored on a storage device during aerial refueling, then data can be accessed and analyzed after landing, but real-time monitoring of fuel pressure is not available

Engineering Contradiction:
Improvetime delay in data analysisVSAvoidreal-time pressure information
Core Design Contradiction:
Loss of timeVSLoss of information

Solution Approach 1:

The patent implements a feedback system where pressure transducers continuously monitor fuel pressure during aerial refueling, and this information is immediately transmitted to displays on both the tanker and receiver aircraft. This real-time feedback loop eliminates the time delay inherent in post-flight data analysis while providing continuous pressure information to operators during the refueling operation.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent introduces an intermediary communication system that transmits pressure data from the tanker's sensors to both the tanker's display and the receiver's display in real-time. This intermediary mechanism enables immediate information sharing between aircraft without requiring post-flight data retrieval, thus resolving the time delay problem.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If multiple display systems are provided on tanker and receiver aircraft, then real-time pressure information is available to both aircraft, but system complexity increases

Engineering Contradiction:
Improvereal-time pressure monitoring reliabilityVSAvoidcomplexity of display and sensor systems
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent employs universal pressure transducers and communication interfaces that can be integrated into both the tanker and receiver aircraft systems. These multi-functional components serve dual purposes: monitoring pressure locally on the tanker and transmitting information to the receiver, thereby reducing overall system complexity while maintaining reliability across both aircraft.

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

Solution Approach 2:

The patent combines the pressure sensing, data processing, and display functions into integrated systems on both aircraft. By merging these functions rather than using separate independent systems, the patent reduces the overall complexity while ensuring that both tanker and receiver have access to real-time pressure information, thus improving reliability without proportionally increasing complexity.

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

Enables real-time monitoring of fuel pressure during aerial refueling, allowing for immediate adjustments to improve the grip and flow of fuel, thereby enhancing the efficiency and safety of the process.

Implementation Method 1

The pressure transducer is configured to sense a fuel pressure inside the aerial refueling assembly and to provide a signal that is indicative of the sensed fuel pressure

Methodology Applied
Scientific EffectPressure sensing:

Implementation Method 2

The one or more light sources are infrared light sources disposed on the drogue assembly

Methodology Applied
Scientific EffectInfrared light emission: Infrared Radiation

Data Source

PatentEP3024730B1System and method for indicating pressure in aerial refueling assembly
Publication Date: 2019.07.10 THE BOEING CO
  • EP3024730B1 patent drawingFigure 1
  • EP3024730B1 patent drawingFigure 2
  • EP3024730B1 patent drawingFigure 3

AI summary

An aerial refueling assembly includes, for example, a pressure transducer (260), a processor (230), and one or more light sources (200). The processor (230) is coupled to the pressure transducer (260). The one or more light sources (200) are coupled to the processor (230). The pressure transducer (260) is configured to sense a fuel pressure inside the aerial refueling assembly and to provide a signal that is indicative of the sensed fuel pressure inside the aerial refueling assembly. The processor (230) is configured to receive the signal and to cause the one or more light sources (200) to flash in a manner that relates to the sensed fuel pressure.