Composite Coiled Spring Assembly for Heat Transfer in Tight Spaces
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Solution Overview
Problem
Current coiled spring manufacturing methods are limited in producing complex, non-symmetric wire cross-sectional geometries, leading to unpredictable stresses and distortions, especially when departing from simple shapes like round or square cross-sections, making it difficult to achieve desired final cross-sectional shapes and geometries.
Innovation Solution
A spring assembly is created by attaching individually coiled springs with different cross-sectional geometries to form a complex resultant shape, with the coils being fixedly attached to change axial lengths, diameters, and pitches harmoniously during compression or extension, allowing for unique functions unattainable with standard manufacturing techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If current coiling methods are used to manufacture springs with complex non-symmetric wire cross-sectional geometries, then manufacturing simplicity is maintained, but the ability to achieve desired final cross-sectional shapes and geometries deteriorates
Solution Approach 1:
The spring is divided into multiple individual springs with different cross-sectional geometries that are attached together to form a spring assembly. Each individual spring can be manufactured using standard coiling methods, while the assembly achieves complex resultant cross-sectional shapes that would be difficult or impossible to produce with a single wire.
Solution Approach 2:
Multiple individual springs with different cross-sectional geometries are fixedly attached together to form a unified spring assembly. The coils of these individual springs are attached to change axial lengths, diameters, and pitches harmoniously, creating a composite structure with complex resultant cross-sectional geometry.
2Ease of manufacture
If standard coiling methods are used, then manufacturing process simplicity is maintained, but surface area of the spring deteriorates
Solution Approach 1:
The spring structure is segmented into multiple individual springs that are attached together. This segmentation increases the total surface area of the spring assembly compared to a single-wire spring, enhancing fluid flow and heat transfer capabilities while maintaining manufacturing simplicity through standardized coiling processes.
Solution Approach 2:
The spring assembly transitions from a single-dimensional wire structure to a multi-dimensional composite structure by attaching multiple individual springs together. This dimensional change significantly increases the surface area available for fluid flow and heat transfer.
Data Source
AI summary
A spring apparatus that has a section that is predominantly horizontal and a section of the spring that is predominantly vertical. The multiple spring assembly design allows for increased surface area, fluid flow, and improved heat transfer properties. The unique design allows the spring to fit in tight spaces and decreases issues when manufacturing complex spring designs and allows for efficient heat and fluid flow inside a tubular.