Spring-Lined Hose Clamp Geometry for Seal Compression Balance
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Solution Overview
Problem
Hose clamps with spring liners face challenges in achieving optimal band tension and seal effectiveness due to the stiffness difference between the clamp, fitting, and hose, which affects hose compression and spring energy storage, particularly influenced by the offset between the band seat and liner peak.
Innovation Solution
A spring liner design featuring an annular body with specific axial sections and flanges, where the central body section includes a tip radially inward of the outer sections, and the inner ends of the sections define a seat for the annular band, allowing for controlled deflection and engagement with the hose clamp, enhancing the distribution of radial loads to achieve better compression and energy storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the clamp and fitting are made stiffer to maintain structural integrity, then strength is improved, but most of the deflection is absorbed by the spring liner and substrate, reducing the effectiveness of hose compression
Solution Approach 1:
The patent modifies the geometric parameters of the spring liner, specifically the offset distance between the band seat and liner peak, to optimize the distribution of deflection. By adjusting this parameter, the system achieves better hose compression while maintaining the structural integrity of the stiffer clamp and fitting components.
2Reliability
If the offset between the band seat and liner peak is increased to improve hose compression, then sealing effectiveness is improved, but the distribution of radial loads and spring energy storage becomes suboptimal
Solution Approach 1:
The patent systematically varies the offset parameter to find the optimal balance between hose compression and spring energy storage. Through parameter optimization, the design achieves both effective sealing and proper energy distribution in the spring liner.
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 design improves the hose clamp's ability to mitigate hose relaxation and joint thermal expansion by optimizing the compression and spring energy storage, leading to a more effective seal and improved performance under varying conditions.
Implementation Method 1
the spring liner mitigates hose relaxation and joint thermal expansion factors by compressing the hose at the peak(s) of the liner and by storing spring energy in the liner to compensate
Implementation Method 2
the components (e.g., substrate, liner, clamp, and fitting) act like springs in series in which the total deflection is the sum of all of the deflections from each component
Implementation Method 3
the spring liner mitigates hose relaxation and joint thermal expansion factors by compressing the hose at the peak(s) of the liner
Implementation Method 4
A radial load may be created by the tension and may be transmitted to the fittings of the joint as a radial load
Data Source
AI summary
A hose clamp includes an annular band and a spring liner. The spring liner includes an annular body having a central axis. The annular body includes a first body section, a second body section, and a central body section connecting the first body section and the second body section. Various methods include applying the hose clamp to a substrate.