Scupper Channel System in Gas Turbine Bearing Support Ring
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Solution Overview
Problem
Gas turbine engines face challenges with oil leakage and weeping around component interfaces, which can lead to increased risks of fire and explosions, and existing solutions are inadequate for effective liquid management.
Innovation Solution
A gas turbine module with a bearing support ring and scupper channel system that includes a scupper drain port and service line port, where the scupper channel system is formed into the radially inner surface of the bearing support ring, capturing liquids and directing them away from critical areas through a scupper line and service line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If oil leakage and weeping liquids are not effectively managed, then the risk of fire and explosions increases, but implementing comprehensive liquid management systems increases device complexity
Solution Approach 1:
The scupper channel system is integrated directly into the bearing support ring structure, merging the liquid collection function with the existing structural component. This eliminates the need for separate collection containers and reduces overall system complexity while maintaining effective liquid management and safety.
Solution Approach 2:
The bearing support ring serves multiple functions: it provides structural support, contains the bearing, and integrates the scupper channel system for liquid collection. This multi-functionality reduces the number of separate components needed, thereby reducing device complexity while improving safety through comprehensive liquid management.
2Productivity
If scupper channels are integrated into the bearing support ring, then liquid drainage effectiveness is improved, but manufacturing complexity increases
Solution Approach 1:
The scupper channel system is designed as an integrated feature within the bearing support ring, allowing the ring to be manufactured as a single piece or pre-assembled unit. This segmentation approach enables the complex scupper geometry to be incorporated without requiring post-manufacturing assembly of separate components, thereby improving liquid drainage effectiveness while managing manufacturing complexity.
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 effectively captures and manages oil leakage and weeping liquids, reducing the risk of fire and explosions by maximizing liquid drainage and retention, thereby enhancing the safety and integrity of the engine.
Implementation Method 1
The scupper channel system is formed into a radially inner surface of the bearing support ring, the scupper channel system including a collection portion in fluid communication with the scupper drain port
Data Source
AI summary
A gas turbine module comprises a frame, a bearing support ring, a service line, and a scupper channel system. A service line is disposed through a radial passage of the frame and a service line port of the bearing support ring. The scupper line is disposed radially through a radial passage of the frame and is open to the scupper drain port. The scupper channel system is formed into a radially inner surface of the bearing support ring, and includes a collection portion in fluid communication with the scupper drain port.