Sprayer Bridge Dispersion Element Sealing Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing micro-irrigation sprayers face challenges in efficiently dispersing irrigation fluid while maintaining protection against insects and dirt, particularly in ensuring the fluid outlet remains sealed and free from clogging, especially when the sprayer is not in its operational mode.
Innovation Solution
A sprayer design featuring a bridge with a dispersion element that can displace between closed and open positions, facilitated by fluid pressure or gravitational forces, ensuring the fluid outlet remains fixed relative to the inlet, with guides and limiters to control displacement and prevent clogging, and a Pressure Compensation Device to regulate fluid flow and prevent leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the fluid outlet is left open for operational fluid discharge, then fluid flow is enabled, but the outlet becomes vulnerable to clogging by insects and dirt
Solution Approach 1:
The outlet cover is designed to be dynamically movable between closed and open positions. It automatically opens when fluid pressure exceeds the biasing force, allowing fluid discharge, and closes when pressure drops, preventing clogging. This dynamic behavior resolves the contradiction by making the protection mechanism adaptive to operational needs.
Solution Approach 2:
The system uses the fluid pressure itself to trigger the opening of the outlet cover, eliminating the need for external actuation mechanisms. The biasing element provides automatic closing, creating a self-regulating system that protects against clogging while enabling fluid discharge without additional complexity.
2Reliability
If a protective cover is added to seal the fluid outlet, then protection against insects and dirt is improved, but the complexity of the device increases
Solution Approach 1:
The outlet cover incorporates a biasing element that automatically returns the cover to its closed protective position after fluid discharge. This self-actuating mechanism eliminates the need for complex control systems, motors, or external actuation, maintaining simplicity while providing reliable protection.
Solution Approach 2:
The biasing element is integrated directly into the outlet cover assembly, extracting the closing function from a separate mechanism and combining it with the cover itself. This integration reduces the number of separate components and simplifies the overall structure while maintaining the protective function.
3Reliability
If the bridge is constantly biased into the closed position, then protection against clogging is improved, but fluid pressure requirements increase
Solution Approach 1:
The biasing force can be adjusted by selecting different spring constants or gravitational orientations, allowing optimization between protection and pressure requirements. The system enables parameter tuning to match specific operational conditions, resolving the contradiction by making the biasing force adaptable rather than fixed.
Solution Approach 2:
The biasing element creates a counteracting force against the fluid pressure, balancing the system so that the cover remains closed under normal conditions but opens when fluid pressure exceeds the biasing force. This counterbalance mechanism allows for optimized pressure thresholds while maintaining protection.
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 design ensures efficient fluid dispersion, protection against dirt and insects, and maintains operational integrity by using fluid pressure to open the dispersion element, preventing clogging and ensuring consistent flow rates, even when not in use.
Implementation Method 1
the bridge can be biased towards the closed position by virtue of gravitational forces. In this case, in the open position, the bridge is elevated over the fluid outlet and is constantly urged to 'drop down' towards the fluid outlet
Implementation Method 2
displacement of the bridge from the closed position to the open position is facilitated by the pressure of fluid emitted through the fluid outlet. In other words, the pressure of the fluid is sufficient to overcome the biasing force of the bridge towards the closed position
Data Source
AI summary
According to the present application there is provided a sprayer comprising a housing having a fluid inlet configured for being statically coupled to a fluid source to receive fluid therefrom. The housing further comprises a fluid outlet configured for the discharging the fluid, the distance between the fluid inlet and the fluid outlet being fixed; The sprayer has a bridge mounted over the housing and comprising a dispersion element configured for dispersing fluid discharged from the fluid outlet of the housing; The bridge is configured for displacement over the housing at least between a closed position in which the dispersion element comes into contact with the fluid outlet to thereby seal it, and an open position in which the dispersion element is spaced from the fluid outlet by a gap, allowing dispersion of the fluid.