Telescopic Engine Drainage Pipe for Aircraft Thermal Movement
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Solution Overview
Problem
Existing drainage lines in aircraft engines are inefficient in managing dynamic movements and thermal expansions, leading to potential oil accumulation and difficulty in assembly and disassembly during maintenance.
Innovation Solution
A telescopic drainage pipe system with interlocking lugs and a spring mechanism that allows for flexible connection between the engine and the aircraft body, ensuring stable fluid discharge while accommodating dynamic movements and facilitating easy assembly/disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed drainage pipe is used to connect the engine and aircraft body, then structural simplicity is maintained, but the system cannot accommodate dynamic movements and thermal expansions
Solution Approach 1:
The drainage pipe system employs a telescopic mechanism with inner and outer pipe sections that can move relative to each other, transforming the fixed structure into a dynamic one. The spring mechanism provides continuous adaptive force to maintain connection while accommodating movements and thermal expansions between the engine and aircraft body.
Solution Approach 2:
The inner drainage pipe section is nested within the outer pipe section, allowing one component to be placed inside another. This nested configuration enables telescopic movement while maintaining a compact structure, resolving the contradiction between adaptability and device complexity.
2Adaptability or versatility
If a telescopic drainage pipe with spring mechanism is used, then flexibility and movement accommodation are improved, but assembly and disassembly difficulty increases
Solution Approach 1:
The drainage pipe is divided into separate modular sections (inner pipe, outer pipe, spring mechanism, lugs) that can be independently manufactured and assembled. The lugs with receiving slots provide clear alignment features that guide proper assembly, reducing complexity despite the telescopic functionality.
Solution Approach 2:
The spring mechanism acts as an intermediary element between the inner and outer pipe sections, providing a controlled interface that allows telescopic movement while maintaining connection. The lugs serve as intermediaries for alignment and engagement, facilitating easier assembly and disassembly of the telescopic structure.
3Ease of operation
If traditional drainage lines are used, then installation simplicity is maintained, but maintenance flexibility and disassembly ease are reduced
Solution Approach 1:
The telescopic drainage pipe provides dynamic adjustment capability that allows maintenance personnel to easily extend or retract the pipe section during maintenance operations, improving accessibility and flexibility compared to fixed traditional drainage lines.
Solution Approach 2:
The modular segmented design with distinct lugs and receiving slots enables quick connection and disconnection during maintenance, allowing the drainage pipe to be easily removed or adjusted without complex procedures, thereby improving maintenance flexibility.
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 system provides efficient fluid discharge by accommodating thermal and dynamic movements, enhances assembly efficiency, and prevents fluid leakage, thus improving maintenance flexibility and durability.
Implementation Method 1
There is a spring that compresses the first part in the second part and dampens the impact force against the rapid impact of the fluid and ensures that the first part and the second part are together
Implementation Method 2
dampens the impact force against the rapid impact of the fluid
Implementation Method 3
provide flexibility at the engine interface by connecting to the body to eliminate the differences between the aircraft structure and the engine due to dynamic movements and thermal expansions
Data Source
Figure 1
Figure 2
AI summary
The present invention comprises a body (G) located on the aircraft, at least one engine (E) located in the body (G) which provides propulsion to the aircraft, at least one fluid (A) which is driven by the operation of the engine (E), extending along the length between the engine (E) and the body (G), at least one drainage pipe (2) connected at one end to the engine (E) and at the other end to the body (G), allowing fluid (A) from the engine (E) to discharge out of the body (G), a first part (201) forming the drainage pipe (2) and connected to the engine (E), It relates to a second part (202) connected to the body (G), which at least partially encircles the first part (201), thereby enabling telescopic movement of the first part (201) within it, and at least one spring (3) located on the second part (202), which enables the first part (201) and the second part (202) to be movably positioned between the engine (E) and the body (G), thereby holding the first part (201) and the second part (202) together against the fluid (A).