Pressurized Testing Tool Check Device for Aircraft Fluid Circuits
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Solution Overview
Problem
Current methods for checking pressurized testing tools for aircraft fluid circuits require immobilizing aircraft on the assembly line, leading to prolonged production delays and difficulties in performing preventive checks.
Innovation Solution
A device with a large-capacity tank and adjustable connection system that simulates aircraft tanks and circuits, allowing for dynamic testing of pressurized tools without immobilizing the aircraft, featuring a moveable chassis and interchangeable interfaces for various tool shapes and sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pressurized testing tools are checked under real conditions using aircraft fluid circuits on the assembly line, then the checking accuracy and reliability are improved, but the aircraft production time is increased due to immobilization
Solution Approach 1:
The patent creates a copy of the aircraft tank (test tank with equivalent volume and characteristics) that replicates the real operating conditions. This allows testing to be performed on the copy rather than the original aircraft component, eliminating the need to immobilize the actual aircraft while maintaining checking reliability. The test tank is designed to simulate the physical and operational characteristics of the aircraft tank.
Solution Approach 2:
The checking system is segmented into independent components: a standalone test tank, pressure control system, and testing apparatus. This segmentation allows the testing function to be separated from the aircraft assembly line, enabling independent operation of the checking device without affecting aircraft production flow.
2Reliability
If aircraft are immobilized on the assembly line for checking, then preventive maintenance is improved, but the production cycle is extended
Solution Approach 1:
By creating a duplicate test tank that mirrors the aircraft tank characteristics, the system enables preventive maintenance checks to be performed independently of the aircraft assembly line. The copy serves as a dedicated testing platform that can operate continuously without interrupting aircraft production, thus maintaining preventive maintenance schedules while avoiding production delays.
Solution Approach 2:
The test tank is prepared in advance with all necessary connections, pressure control systems, and measurement instruments configured before testing begins. This preliminary setup allows checking operations to commence immediately without requiring aircraft immobilization or assembly line interruptions, thereby preventing time loss while ensuring thorough preventive maintenance.
3Device complexity
If a fixed connection system is used for testing, then the device complexity is reduced, but the adaptability to different testing tool shapes is worsened
Solution Approach 1:
The connection system incorporates movable and adjustable components that can adapt to different testing tool geometries. The connection elements are designed with degrees of freedom allowing positional adjustment, enabling the same connection system to interface with various tool shapes and sizes without requiring complete redesign, thus maintaining low complexity while achieving high adaptability.
Solution Approach 2:
The connection system is designed as a universal interface that can accommodate multiple types of testing tools through standardized mounting mechanisms and adjustable positioning features. This universal design allows a single connection system to serve multiple functions and interface with different tool configurations, eliminating the need for tool-specific connection hardware while maintaining simplicity.
Data Source
AI summary
A device for checking at least one pressurized testing tool for a fluid circuit of an aircraft includes at least one tank that includes at least one connection to connect a pressurized gas supply and at least one connection system arranged to connect at least one pressurized testing tool. This device makes it possible to perform preventive checks on pressurized testing tools without having to immobilize an aeroplane on an assembly line.