Axial Connecting Element for Gas Turbine Compressor Interconnection
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Solution Overview
Problem
Existing gas turbine engine component interconnection methods face challenges related to weight, complexity, ease of assembly, part count, engine envelope, and engine profile, necessitating innovative solutions for efficiently interconnecting rotating components.
Innovation Solution
A unique apparatus and method utilizing an elongated connecting element with a hollow interior, extending along the axis of rotation, which interconnects compressor wheels through tensioning mechanisms, allowing for torque transmission and easy disassembly for maintenance, featuring distinct material options for optimal performance and structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional interconnection methods are used for gas turbine engine components, then structural strength is maintained, but device complexity and weight increase
Solution Approach 1:
The connecting element is divided into distinct functional segments: a first portion that interfaces with the compressor wheel, a second portion that interfaces with the turbine wheel, and intermediate sections. This segmentation allows each portion to be optimized for its specific function while simplifying the overall interconnection design and reducing the need for additional complex components.
Solution Approach 2:
The connecting element serves multiple functions simultaneously: it transmits torque between wheels, provides structural support, enables relative movement between compressor and turbine wheels, and facilitates maintenance through reversible connection. This multi-functionality reduces the number of separate components needed, thereby reducing device complexity and weight while maintaining structural strength.
2Strength
If traditional rigid interconnection methods are used, then structural integrity is maintained, but ease of assembly and disassembly deteriorates
Solution Approach 1:
The connection between the compressor wheel and turbine wheel is made dynamic rather than rigid. The connecting element allows controlled relative movement between the wheels while maintaining structural integrity through tension. The connection can be easily assembled and disassembled by adjusting the tension in the connecting element, eliminating the need for complex fastening operations while preserving structural strength during operation.
3Adaptability or versatility
If multiple separate components are used for interconnection, then adaptability is improved, but device complexity and part count increase
Solution Approach 1:
Multiple functional requirements are merged into a single connecting element: torque transmission, structural support, relative movement accommodation, and maintenance accessibility. This consolidation reduces the part count and simplifies the interconnection system while maintaining the adaptability needed for different operating conditions through the element's inherent flexibility and tension-adjustment capabilities.
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 solution enhances the interconnection of gas turbine engine components by reducing complexity, improving assembly ease, and enabling efficient torque transmission while allowing for maintenance without destructive procedures, thereby reducing lifecycle costs and improving engine performance.
Implementation Method 1
The connecting element extends from the first rotational component substantially on an axis of rotation of the apparatus... tensioning mechanisms
Implementation Method 2
allowing for torque transmission... interconnected with one another along their rims and are affixed to a shaft
Data Source
Figure 1
Figure 2~4
AI summary
One embodiment is an apparatus comprising a first rotational component including an elongated connecting element fixed thereto and extending axially therefrom through a second rotational component to an end structure. The connecting element is connected to the end structure to compress the second rotational component between the end structure and the first rotational component.