Hose Connection Ferrule Protrusion for Flow Resistance Reduction
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Solution Overview
Problem
Existing hose arrangements for water-conveying systems have complex structures and high flow resistance due to step-like transitions between the hose nipple and pressure hose, which limits their suitability for sanitary applications where high flow rates are required.
Innovation Solution
The ferrule is profiled with an annularly encircling groove to form a protrusion that radially displaces the pressure hose inward, creating a smooth transition and reducing the inside diameter, thereby minimizing flow resistance and turbulence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional hose arrangement with a ferrule and hose nipple is used, then the hose can be securely connected, but the step-like transition between the hose nipple and pressure hose creates high flow resistance and turbulence
Solution Approach 1:
The patent applies local quality by creating a protrusion at a specific location on the ferrule (in the sleeve portion) that radially displaces the pressure hose inward. This localized modification creates a smooth transition zone only where needed, rather than changing the entire hose structure. The protrusion forms a constriction that eliminates the step-like transition at the hose nipple interface, reducing turbulence and flow resistance while maintaining the secure connection provided by the overall ferrule-hose nipple assembly.
2Loss of energy
If the pressure hose inside diameter is reduced to match the hose nipple, then flow resistance decreases, but the overall flow capacity is reduced
Solution Approach 1:
The patent applies dynamics by creating a dynamic flow path optimization. The protrusion-induced constriction is positioned to create a smooth transition zone that dynamically guides the fluid flow from the larger pressure hose diameter to the smaller hose nipple diameter. This dynamic transition eliminates sudden expansions and contractions that cause turbulence, allowing the system to maintain higher flow capacity while reducing flow resistance compared to a rigid step-like transition.
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 configuration significantly reduces flow resistance and improves flow properties by eliminating turbulence and maximizing the effective inside cross-section, making the hose arrangement more suitable for high-flow sanitary applications.
Implementation Method 1
the protrusion is configured to deform the material of the flexible pressure hose inward such that a constriction is formed
Implementation Method 2
This configuration significantly reduces flow resistance and improves flow properties by eliminating turbulence
Data Source
AI summary
In a hose arrangement (1) for a water-conveying system, which arrangement includes a flexible pressure hose (2) and a connection piece (4) with a hose nipple (5) and a ferrule (6) which receive the pressure hose (2) therebetween, it is provided that the ferrule (6) has an inwardly protruding projection (12) in a ferrule section (11) projecting axially beyond the hose nipple (5), by which projection the pressure hose (2) is displaced radially inwardly behind the hose nipple (5) to form a constriction (19) of the inside diameter such that a transition of the inside diameter between the hose nipple (5) and the pressure hose (2) is smoothed.