Rotor Sprinkler Selector for Full-Circle and Part-Circle Modes
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Solution Overview
Problem
Existing rotor sprinklers lack the ability to efficiently operate in both part-circle and full-circle modes with improved cycle performance, particularly in full-circle mode, due to limitations in their rotational direction and mechanical components.
Innovation Solution
A rotor sprinkler design that includes a selector assembly allowing seamless switching between part-circle and full-circle operations without adjusting arc settings or drive mechanism components, ensuring continuous rotation in a preferred direction (counter-clockwise) to enhance durability and longevity by minimizing stress on critical gears.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the rotor sprinkler operates in full-circle mode with continuous rotation, then the coverage area is maximized, but the mechanical stress on gears increases leading to reduced reliability
Solution Approach 1:
The system dynamically switches between part-circle and full-circle operation modes through a selector assembly that repositions the trip lever. This allows the sprinkler to adapt its rotational behavior based on operational requirements, enabling full-circle coverage when needed while maintaining part-circle operation for reduced stress scenarios.
Solution Approach 2:
The invention changes the operational parameters of the rotor by repositioning the trip lever relative to the stops. This parameter change enables the system to transition between different rotation patterns (part-circle vs. full-circle), thereby controlling the mechanical stress on gears while maintaining coverage area flexibility.
2Ease of operation
If the rotor sprinkler uses a trip lever mechanism to control rotation, then part-circle operation is achieved, but the complexity of the mechanical system increases
Solution Approach 1:
The trip lever mechanism serves multiple functions: it controls part-circle operation by engaging with stops, enables full-circle operation when repositioned, and provides the basis for mode switching between part-circle and full-circle patterns. This multi-functionality reduces the need for separate control mechanisms.
Solution Approach 2:
The system uses a dynamic trip lever that can be repositioned by the selector assembly to change operational mode. The lever transitions between engaging the stops for part-circle operation and being repositioned for full-circle operation, providing flexible control without requiring multiple static mechanisms.
3Area of stationary object
If the rotor sprinkler rotates in alternating directions for part-circle operation, then water distribution coverage is improved, but the wear on mechanical components increases
Solution Approach 1:
The system dynamically controls the rotation direction and pattern through the trip lever mechanism. When the trip lever engages the stops, the rotor rotates in alternating directions for part-circle coverage. When repositioned, the rotor maintains continuous unidirectional rotation for full-circle operation, thereby controlling component wear based on operational needs.
Solution Approach 2:
The invention changes the rotational parameters by repositioning the trip lever, which alters the engagement with the stops. This parameter change enables the system to switch between alternating-direction rotation for coverage and unidirectional rotation for reduced wear, extending component service life.
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 achieves improved cycle performance and extended component life by maintaining consistent, low-stress rotation in the preferred direction, reducing gear failure and enhancing operational reliability.
Implementation Method 1
One common motor uses a water-driven turbine and a gear reduction system to convert the high-speed rotation of the turbine into relatively low speed turret rotation.
Implementation Method 2
When the irrigation cycle is completed, the pressurized water supply is shut off and a spring retracts the riser back into the stationary housing.
Data Source
AI summary
A rotor sprinkler is provided that includes a housing having a riser assembly and a rotatable nozzle turret on an upper end of the riser assembly. The rotor sprinkler includes an arc setting assembly that enables part-circle operation of the turret and a selector assembly that permits selection of either part-circle or full-circle mode of the nozzle turret where the full-circle mode rotates in one direction regardless of the direction last set in part-circle mode.