Quick Coupling Parabolic Guide Body Oil Flow

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Solution Overview

Problem

Existing quick couplings fail to significantly increase oil flow rate while minimizing load losses and reducing component length, with previous attempts yielding unsatisfactory results.

Innovation Solution

A female-type quick coupling design featuring a smooth arch conveying channel, a parabolic guide and conveying body with radially projecting ribs defining fluid flow channels, and a locking mechanism to enhance oil flow efficiency and reduce load losses.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional quick coupling designs are used, then the constructional length is reduced, but the oil flow rate cannot be significantly increased and load losses are not minimized

Engineering Contradiction:

Improveoil flow rateVSAvoidload losses

Core Design Contradiction:

ProductivityVSLoss of energy

Solution Approach 1:

The conveying channel is designed with a smooth arch arrangement (curved geometry) instead of straight or angular passages. This curved path reduces flow separation and turbulence, allowing higher oil flow rates with minimized load losses by maintaining smoother fluid progression through the coupling.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

The guide and conveying body features a parabolic configuration with specific radial rib arrangements that optimize flow parameters. The parabolic shape and rib positioning are designed to control fluid velocity and pressure distribution, enabling increased flow rate while reducing energy losses through optimized hydrodynamic parameters.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If conventional quick coupling designs are used, then the constructional length is reduced, but the hydrodynamic conditions are not improved

Engineering Contradiction:

Improvehydrodynamic conditionsVSAvoidconstructional length

Core Design Contradiction:

ReliabilityVSLength of stationary object

Solution Approach 1:

The guide and conveying body is positioned inside the quick coupling housing, with the conveying channel nested within the overall structure. This nested arrangement achieves improved hydrodynamic conditions through the parabolic guide body and smooth arch channel while maintaining a compact constructional length by utilizing internal space efficiently.

Inventive Principle:

Principle #7Nested doll (Nesting)

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 achieves increased oil flow rate and reduced load losses while maintaining a shorter constructional length, improving hydrodynamic conditions.

Implementation Method 1

allowing, for example, substantially laminar oil flow F

Methodology Applied

Scientific EffectLaminar flow: Laminar Flow

Data Source

PatentEP1840443B1Quick coupling

Publication Date: 2018.05.30 FASTER SPA

Figure 1~2
Figure 3

AI summary

A quick coupling, for example of a female type, to be connected with a counterpart, of a male type, comprises, inside a valve body, downstream of an inlet fitting for receiving a pressurized fluid flow (F), a guide and conveying body (7) having a parabolic cross section, and a plurality of radially outwardly extending ribs, delimiting, circumferentially of the guide and conveying body, a plurality of flow channels communicating with an annular chamber (6) closed by a valve body (3).