Adjustable Arc Irrigation Nozzle Edge Watering
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Solution Overview
Problem
Conventional spray head sprinklers often fail to provide adequate watering to areas adjacent to hardscapes like concrete sidewalks, leading to brown patches in lawns due to increased evaporation and heat radiation, despite sufficient watering elsewhere.
Innovation Solution
An adjustable arc sprinkler with rotatable cylindrical members and features like swept cuts and walls to enhance water distribution at the edges of the spray pattern, allowing for increased water reach and definition, particularly around hot surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional spray heads are used to water lawns, then the majority of the lawn receives sufficient water, but areas adjacent to hardscapes receive inadequate water due to evaporation and heat radiation
Solution Approach 1:
The spray nozzle incorporates specialized features (swept cuts and walls) at specific locations within the nozzle structure to modify water distribution characteristics. These features create enhanced spray patterns that deliver additional water to edge areas adjacent to hardscapes, addressing the local water deficiency without altering the overall spray system.
Solution Approach 2:
The swept cuts and walls are pre-configured in the nozzle to redirect and extend water spray reach before the water leaves the nozzle. This preliminary action ensures that water is already positioned to reach edge areas that would otherwise be underserved, compensating for the harmful evaporation and heat radiation effects before they can occur.
2Length of moving object
If the spray pattern is extended to reach edge areas, then hard-to-reach areas receive water, but water distribution uniformity may be compromised
Solution Approach 1:
The swept cuts and walls are strategically positioned to extend water reach to edge areas while maintaining appropriate water distribution in the central spray areas. This localized modification ensures that the extended reach does not compromise the uniformity of water distribution across the entire spray pattern.
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 adjustable arc sprinkler ensures even watering by increasing water distribution at the edges of the spray pattern, preventing brown patches near hardscapes and effectively reaching hard-to-reach areas.
Implementation Method 1
A pair of features formed on the first and second members are configured to enhance a distribution of water at the edges of the water spray pattern
Data Source
AI summary
An adjustable arc sprinkler includes first and second adjacent members that define a nozzle orifice. The first member can be connected to the end of a riser and defines a flow path leading to the nozzle orifice. The second member is rotatable relative to the first member to select a desired size of an adjustable arc fan-shaped water spray pattern when water travels through the flow path and is ejected from the nozzle orifice. A pair of features formed on the first and second members are configured to enhance a distribution of water at the edges of the water spray pattern.