Irrigation Nozzle Deflector Geometry and Flow Control
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Solution Overview
Problem
Existing irrigation nozzles are inefficient in controlling water flow and pattern distribution, leading to unwanted irrigation outside the desired area, and they often generate operational noise.
Innovation Solution
The design incorporates geometrically continuous deflecting and non-deflecting nozzle passages with adjustable water flow rates, managed by a screw mechanism, and a filter system to optimize water distribution within specific irrigation patterns while minimizing external irrigation and reducing noise through smooth curvature designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional irrigation nozzles are used, then water flow can be provided to the landscape, but water flow control is inefficient and irrigation extends outside the desired area
Solution Approach 1:
The nozzle is divided into multiple independent nozzle passages (at least two separate passages) that can be individually controlled. Each passage has its own deflector and can be adjusted independently to control water flow direction and distribution, allowing precise control over which areas receive water and in what quantities.
Solution Approach 2:
The nozzle passages incorporate adjustable components including deflectors that can be rotated to change water flow direction, and flow control members that can be adjusted to regulate water flow rate. This dynamic adjustability allows the nozzle to adapt to different irrigation patterns and landscape requirements, preventing unwanted water distribution while maintaining ease of operation.
2Productivity
If traditional irrigation nozzles are used, then water can be distributed, but operational noise is generated
Solution Approach 1:
The nozzle passages are designed with smooth curved surfaces and rounded transitions rather than sharp angles or flat surfaces. This curvature reduces turbulence and flow separation, which are primary sources of noise in fluid flow. The smooth geometry maintains water distribution effectiveness while significantly reducing operational noise generation.
3Manufacturing precision
If multiple nozzle passages are used to control water flow, then irrigation pattern precision is improved, but device complexity increases
Solution Approach 1:
Multiple nozzle passages are integrated into a single unified nozzle body structure. The passages are formed as part of the same molded component, sharing common features such as the nozzle outlet and support structures. This merging approach achieves precise irrigation pattern control through multiple passages while avoiding the complexity of assembling separate nozzle components.
Solution Approach 2:
The nozzle passages are designed with multi-functional capabilities, where each passage can serve multiple purposes: controlling water flow rate, directing water flow direction, and shaping the irrigation pattern. This multi-functionality reduces the need for separate control mechanisms for each function, thereby managing device complexity while maintaining high irrigation pattern precision.
Data Source
AI summary
An irrigation nozzle is provided. The irrigation nozzle comprises a nozzle body forming a first body portion. The first body portion is generally cylindrical in shape and forms a nozzle cavity and at least one deflecting nozzle passage. Each deflecting nozzle passage extends from the nozzle cavity to an exterior surface of the first body portion. Each deflecting nozzle passage includes a deflector surface located adjacent to an exterior surface of the first body portion. The size and spatial orientation of each deflector surface and the curvature and hydraulic diameter of each deflecting nozzle passage upstream from each deflector surface are configured such that water flowing from the nozzle cavity through each deflecting nozzle passage impinges upon each deflector surface and spreads tangentially to a desired magnitude while flowing radially outward from said first body portion on a desired trajectory. The nozzle body is constructed as a unitary object.


