Flexible Support Structure for Tilting-Pad Bearing Heat Control
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Solution Overview
Problem
Conventional tilting pad bearings face challenges in manufacturability and thermal management, with tilting pads often becoming overheated during operation due to inadequate material connection and production complexity.
Innovation Solution
The tilting pads are connected in one piece to a flat, flexible support structure at multiple points, utilizing solid joints, bending beams, or torsion beams for enhanced stability and thermal connection, allowing for adjustable geometry and reduced manufacturing costs through the use of sheet metal materials and laser processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If tilting segments are metallurgically bonded to a bearing ring, then connection strength is improved, but thermal management deteriorates and manufacturing complexity increases
Solution Approach 1:
The patent introduces a planar flexible support structure as an intermediary element between the tilting segments and the housing body. This support structure serves as a thermal pathway that conducts heat away from the tilting segments, preventing overheating while maintaining mechanical connection. The support structure mediates both the mechanical support function and the thermal management function, resolving the contradiction between strong connection and thermal control.
2Stability of the object's composition
If tilting segments are connected at multiple points to the support structure, then connection stability is improved, but manufacturing complexity increases
Solution Approach 1:
The patent merges multiple connection functions into a single integrated planar flexible support structure. Instead of separately connecting tilting segments at multiple points with individual fasteners or bonds, the support structure provides continuous multi-point attachment through its planar geometry. This combining approach achieves stable multi-point connection while simplifying manufacturing, as the support structure can be formed as a single piece and installed as one component.
3Ease of manufacture
If tilting segments are made as separate inserted components, then ease of assembly is improved, but connection strength and thermal connection deteriorate
Solution Approach 1:
The patent enables the support structure to perform multiple functions simultaneously - it provides mechanical support, thermal management, and positional alignment without requiring separate components. The planar flexible support structure self-adjusts to accommodate manufacturing tolerances and assembly variations while maintaining stable connection, eliminating the need for precision-aligned separate insertion components.
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
This design improves thermal management by preventing overheating, simplifies production, and allows for precise adjustment of tilting segments, ensuring stable operation and reduced wear, making it suitable for high-speed rotors in turbomachinery and compressors.
Implementation Method 1
the planar, flexible support structure to which the tilting segments are integrally connected advantageously rests against the housing body. This significantly improves the thermal connection of the tilting segments to the housing body.
Implementation Method 2
A fluid film forms between these surfaces and the rotating rotor body, supporting the rotor body, especially the shaft, so that no contact occurs during operation.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a tilting pad bearing with tilting pads (103) which can be tilted relative to a housing body in order to generate bearing gaps between the tilting pads (103) and a rotor body. In order to improve the tilting pad bearing in terms of its producibility, the tilting pads (1-3) are integrally connected to a flat, flexible support structure (10).