Sinusoidal Hose Coupling for High-Pressure Retention
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Solution Overview
Problem
Existing hose couplings face challenges in handling high pressures, leading to hose perforation and leakage due to linear pinch points and sharp edges, which restrict hose stretching and cause excessive tension, making them unsuitable for long-distance fluid transport.
Innovation Solution
A hose coupling design featuring a tailpiece with a sinusoidally shaped exterior and interdigitated reciprocal fingers in the sleeve, along with a collar that applies a constant force across the hose, preventing extraction and reducing stress on the fabric liner, while using a Vectran yarn hose with a twill weave pattern for enhanced strength and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a hose coupling uses linear pinch points and sharp edges to secure the hose, then the coupling can be simpler in structure, but the hose experiences excessive tension and perforation at high pressures
Solution Approach 1:
The patent applies curvature by replacing linear pinch points and sharp edges with a sinusoidal wave pattern on the tailpiece. This curved, undulating surface distributes contact pressure along multiple peaks and valleys, eliminating stress concentration at single linear points while maintaining secure hose retention. The sinusoidal geometry transforms the force distribution from concentrated to distributed, preventing hose perforation.
2Stability of the object's composition
If a hose coupling restricts hose stretching to maintain positioning, then the hose position is more stable, but the hose experiences excessive tension and leakage
Solution Approach 1:
The patent implements dynamics by allowing the hose to stretch and conform to the sinusoidal wave pattern of the tailpiece. The undulating surface enables the hose to dynamically adjust its position along the peaks and valleys, maintaining stable retention while accommodating natural hose expansion and contraction. This dynamic interaction prevents excessive tension by distributing restraining forces across multiple contact points rather than restricting movement at a single fixed point.
Data Source
AI summary
The hose includes an outer jacket which includes warp and weft fibers made of Vectran®. The process for making the hose, includes: forming an inner liner and coating the exterior thereof with adhesive; weaving, in a twill weave pattern, Vectran® yarn, in a repeating 2-4-2-4-2 pattern in both the warp and the weft directions; extruding polyurethane onto the woven vectran yarn, the polyurethane extending into pillars between the warp and weft yarn, forming an outer liner; inserting the inner liner coated with adhesive within the outer liner; and, pressurizing the inner liner with steam expanding the inner liner and the adhesive into engagement with the Vectran® yarn and polyurethane pillars of the outer liner.