Rotary Sprinkler With Flat Trajectory Spinner
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Solution Overview
Problem
Conventional rotary sprinklers are costly and complex, with many moving parts, making them unsuitable for outdoor bushfire prevention and situations where a mist is not appropriate, such as using leachate water.
Innovation Solution
A rotary sprinkler design featuring a nozzle and a pivotally mounted spinner with a liquid deflecting surface that imparts a flat trajectory to the water stream, using only one moving part, allowing for efficient water distribution and reduced wind interference, and capable of operating with fire suppressant liquids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If conventional rotary sprinklers are used to water large spaces, then water distribution coverage is improved, but device complexity and cost increase due to many moving parts
Solution Approach 1:
The patent extracts the essential function of water deflection from a complex multi-component rotary sprinkler system and implements it using a single spinner component with a specifically shaped liquid deflecting surface. This reduces the device from many moving parts to just one moving part while maintaining the ability to distribute water over a large area through 360-degree rotation.
Solution Approach 2:
The single spinner component performs multiple functions: it deflects the water stream to create rotation, controls the spray pattern, and distributes water across a wide area. This multi-functional design eliminates the need for separate components for each function, reducing overall device complexity while maintaining effective water distribution coverage.
2Area of stationary object
If high pressure is used to create a mist spray, then water distribution coverage is improved, but suitability for bushfire prevention and outdoor settings deteriorates
Solution Approach 1:
The patent changes the spray parameter from a fine upward mist (high pressure) to a flat trajectory stream (controlled pressure). The liquid deflecting surface is specifically shaped to deflect the stream substantially transverse to the first direction, creating a flat trajectory that is less affected by wind and more suitable for bushfire prevention and outdoor settings while still achieving wide area coverage through rotation.
3Area of stationary object
If a mist spray pattern is used, then water distribution coverage is improved, but wind resistance and trajectory control deteriorate
Solution Approach 1:
Instead of creating an upward mist that is easily dispersed by wind, the patent inverts the approach by creating a flat trajectory stream that travels horizontally. The liquid deflecting surface deflects the stream substantially transverse to the original direction, producing a controlled flat trajectory that maintains its path better in windy conditions while still achieving area coverage through the rotational motion of the single spinner component.
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 sprinkler provides a flat, wind-resistant water distribution suitable for bushfire situations and avoids mist formation, ensuring effective water use and protection in outdoor settings, including fire-prone areas and landfills.
Implementation Method 1
the liquid deflecting surface is shaped such that the stream of liquid is deflected in a second direction that is substantially transverse to the first direction
Implementation Method 2
a stream of liquid from the nozzle impinges on the liquid deflecting surface; the stream of liquid causes the spinner to spin
Data Source
AI summary
In some embodiments the present disclosure provides a sprinkler comprising: a nozzle for projecting a stream of liquid in a first direction; and a spinner having a liquid deflecting surface, which is pivotally mounted in-line with the nozzle such that a stream of liquid from the nozzle impinges on the liquid deflecting surface; where the liquid deflecting surface is shaped such that the stream of liquid causes the spinner to spin and furthermore, where the liquid deflecting surface is shaped such that the stream of liquid is deflected in a second direction that is substantially transverse to the first direction. Additional embodiments of this disclosure pertain to the sprinkler that includes a frame, where the spinner is pivotally mounted on the frame.