Hydraulic Quick Coupling Stays for Low-Turbulence Flow
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Solution Overview
Problem
Conventional hydraulic quick couplings suffer from pressure loss and fluid flow inefficiencies due to design elements that induce drag and turbulence, particularly in the coupled state, leading to reduced hydraulic fluid flow rates and increased resistance.
Innovation Solution
The design features non-centrally arranged stays in the female part and a streamlined central pylon with webs in the male part, oriented to minimize drag and turbulence, ensuring smooth fluid flow by directing the fluid along acute angles and utilizing openings between these components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional design elements (central plunger, rectangular surfaces) are used in hydraulic quick couplings, then structural simplicity and ease of manufacture are improved, but fluid flow efficiency deteriorates due to induced drag and turbulence
Solution Approach 1:
The patent applies curvature by replacing rectangular and perpendicular surfaces with rounded and inclined surfaces. The stay surfaces are specifically designed with rounded edges and inclined orientations relative to the fluid flow direction, eliminating sharp corners that generate turbulence. This curved geometry allows hydraulic fluid to flow smoothly around components, reducing drag and improving flow rate while maintaining structural integrity.
Solution Approach 2:
The patent employs asymmetry by positioning stays non-centrally within the coupling body and orienting their surfaces at specific inclined angles relative to the fluid flow. This asymmetric arrangement optimizes fluid passage by creating streamlined flow paths that reduce turbulence and pressure loss, rather than using symmetric central positioning that would obstruct flow.
2Manufacturing precision
If conventional rectangular surfaces and perpendicular orientations are used, then manufacturing precision requirements are reduced, but hydraulic fluid flow efficiency deteriorates due to stagnation points and turbulence
Solution Approach 1:
The patent replaces all rectangular and perpendicular surfaces with curved and inclined surfaces. The stay components feature rounded edges and smooth transitions that eliminate sharp corners where stagnation points would form. This curvature ensures hydraulic fluid flows smoothly around components, preventing turbulence and reducing energy loss while the inclined orientations guide fluid along optimized flow paths.
Solution Approach 2:
The patent changes geometric parameters of the stay surfaces, specifically their orientation angles relative to fluid flow and their curvature radii. By optimizing these parameters, the design minimizes flow separation and turbulence, reducing pressure loss without requiring extremely tight manufacturing tolerances, as the rounded geometry is more tolerant of normal manufacturing variations.
3Stability of the object's composition
If central plunger design is used, then structural stability is improved, but fluid flow obstruction increases leading to reduced hydraulic performance
Solution Approach 1:
The patent segments the central plunger into multiple distributed stay components positioned around the fluid passage. Instead of one large central obstruction, several smaller stays are arranged radially, creating multiple narrow flow passages between them. This segmentation reduces overall flow obstruction while maintaining structural stability through the distributed arrangement of supports.
Solution Approach 2:
The patent transitions from a two-dimensional view of fluid flow (blocked by a central plunger) to a three-dimensional flow path that flows around and between multiple stays. By adding the radial dimension with multiple stays positioned around the circumference, the design creates volumetric flow passages that maintain structural support while preserving hydraulic flow efficiency.
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 enhances hydraulic fluid flow and reduces pressure loss, maintaining efficient operation and structural stability under high pressures, while preventing leakage in the decoupled state.
Implementation Method 1
The female part further comprises a female spring mechanism, which is arranged between the sleeve and the female central part
Implementation Method 2
The at least two non-centrally arranged stays are designed streamlined in order to minimize drag on the hydraulic fluid flow
Implementation Method 3
design elements may induce drag on the hydraulic fluid flow due to their positioning or shape, which can potentially decrease overall system performance
Data Source
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AI summary
This disclosure refers to a hydraulic quick coupling designed to enhance hydraulic fluid flow efficiency. The coupling comprises a female part (2), which includes a female central part (6) situated within a female outer casing (8). The outer casing features a sleeve (40) that slides within an aperture (48), and the central part (6) partially sits within the aperture (48). A female spring mechanism (10) positioned between the sleeve and the central part provides the necessary force to block hydraulic flow when the female part (2) is not engaged with a male part (4). The central part (6) is comprised of a plunger end (18) and an attaching end (20), with the latter having a female central opening (36) to facilitate the passage of hydraulic fluid. The coupling is distinguished by at least two non-centrally arranged stays (32) that extend from the periphery of the attaching end's opening to the plunger end (18). These stays (32) are designed to minimize turbulence in the hydraulic fluid flow by ensuring a streamlined path for the hydraulic fluid, significantly enhancing the efficiency of the hydraulic quick coupling.