Coaxial Liquid Pressure Regulator With Deflected Low-Drag Inlet Flow
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Solution Overview
Problem
Existing liquid pressure regulators in irrigation systems suffer from drag and flow obstacles due to the cantilever design of the valve body, which reduces their efficiency and hydraulic performance.
Innovation Solution
The introduction of first and second deflection means, comprising fin-shaped struts and deflecting slides, respectively, to facilitate smooth liquid flow by reducing drag and enhancing flow conveyance through the regulator, eliminating obstacles and improving hydraulic efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the valve body projects in cantilever fashion into the liquid collection chamber, then the structural support is provided, but drag and flow obstacles are created
Solution Approach 1:
The invention extracts the obstructing function from the valve body by moving it out of the liquid collection chamber. The valve body is repositioned to be located downstream of the inlet fitting, eliminating its projection into the collection chamber and thereby removing the source of drag and flow obstacles while preserving its structural support function.
Solution Approach 2:
The invention changes the spatial arrangement by repositioning the valve body from a cantilever projection into the collection chamber to a downstream location along the flow path. This dimensional repositioning eliminates the obstruction while maintaining structural integrity through alternative support configurations.
2Loss of energy
If the valve body is repositioned downstream, then drag is reduced, but structural support may be compromised
Solution Approach 1:
The invention introduces a support structure as an intermediary element that provides the necessary structural support for the repositioned valve body. This mediator allows the valve body to be located downstream for reduced drag while maintaining adequate structural support through the intermediary support mechanism.
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 solution ensures uniform flow and increased hydraulic efficiency by reducing drag and accelerating flow, allowing the regulator to maintain constant pressure with lower inlet pressure values, thus improving the overall performance and longevity of the regulator.
Implementation Method 1
The introduction of first and second deflection means, comprising fin-shaped struts and deflecting slides, respectively, to facilitate smooth liquid flow by reducing drag and enhancing flow conveyance through the regulator
Implementation Method 2
a valve body fixed inside the inlet portion with a seat configured to interact with the inlet edge of the valve member and to form a port of variable width therewith
Data Source
AI summary
A coaxial liquid pressure regulator includes a housing having an inlet portion and an outlet portion, a substantially tubular valve member slidingly accommodated inside the housing and having a longitudinal axial passage and an upstream end with an inlet edge for the liquid, a valve body fixed inside the inlet portion and defining a seat that interacts with the inlet edge of the valve member and forms therewith a port having a variable width. The inlet portion includes an inlet fitting and a collection chamber directly downstream from the inlet fitting and the valve body includes a cantilever element transversely extending from the inner wall of the collection chamber. First and second deflection elements are arranged between the inlet fitting and the inlet edge, which facilitate flow conveyance toward the port and the longitudinal passage of the valve member.