Agricultural Sprayer Tank Cleaning Nozzle Control
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Solution Overview
Problem
Existing agricultural field sprayers require multiple nozzle sizes for internal cleaning, which is inefficient and requires more water to achieve adequate cleaning pressure, especially when a small quantity of liquid is used.
Innovation Solution
The implementation of an electronic control and/or regulating device to intermittently supply cleaning liquid to cleaning nozzles in alternating section areas and intervals, ensuring high pressure without the need for multiple nozzle sizes, by actuating individual or grouped nozzles via valve elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If cleaning nozzles of appropriate size are installed by hand to match the liquid quantity, then adequate cleaning pressure is achieved, but device complexity increases and adjustment is required
Solution Approach 1:
The patent applies periodic action by operating cleaning nozzles in alternating sections with defined time intervals rather than continuously. The control device activates nozzle groups sequentially, allowing the liquid pump to maintain high pressure by delivering liquid to only active nozzles at any given moment, thereby achieving adequate cleaning pressure without requiring multiple nozzle sizes or manual adjustments
Solution Approach 2:
The patent segments the cleaning nozzles into multiple groups that operate in alternating sections. Instead of having all nozzles operate simultaneously, the system divides them into separate controllable groups that are activated sequentially, reducing the liquid flow demand at any one time while maintaining effective cleaning pressure on each segment
2Adaptability or versatility
If multiple nozzle sizes are installed for different application quantities, then adaptability is improved, but ease of operation deteriorates due to required adjustments
Solution Approach 1:
The patent implements dynamics by making the nozzle system dynamically controllable through electronic activation. Instead of static nozzle installations requiring manual selection and adjustment, the system uses a control device to dynamically activate specific nozzle groups based on operating conditions, providing adaptability without requiring operational intervention
Solution Approach 2:
The system applies self-service by automatically managing nozzle activation through the control device. The control device autonomously manages the activation and deactivation of nozzle groups without requiring manual intervention, making the system adaptable to different conditions while maintaining ease of operation
3Productivity
If cleaning nozzles operate continuously, then cleaning coverage is improved, but liquid consumption increases
Solution Approach 1:
The patent applies periodic action by operating cleaning nozzles in alternating sections with defined time intervals rather than continuously. The control device activates nozzle groups sequentially, allowing the liquid pump to maintain high pressure by delivering liquid to only active nozzles at any given moment, thereby achieving adequate cleaning pressure without requiring multiple nozzle sizes or manual adjustments
Solution Approach 2:
The patent maintains continuity of useful action by ensuring that while individual nozzle groups are activated periodically, the overall cleaning process continues without interruption. As one group deactivates, another activates, providing continuous cleaning coverage throughout the tank interior
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
This method allows for efficient and uninterrupted interior cleaning of the field sprayer with less water at sufficiently high pressure, eliminating the need for different nozzles and simplifying the cleaning process.
Implementation Method 1
a pump 2, in particular a high-pressure pump, for pressurizing the liquid and/or for supplying the liquid at a high pressure to the spray nozzles 8
Implementation Method 2
cleaning nozzles 22...in such a way that the cleaning nozzles 22 are supplied with liquid within defined time intervals during the cleaning process of the inner area of the liquid tank 1 the cleaning liquid is supplied in at least two continuously alternating section areas 24, 25
Data Source
Figure 1
Figure 2
AI summary
The device has a liquid tank (1), a propelled liquid pump, and a dosing device comprising an extraction pipe and a cleaning device (21) for providing cleaning fluid, where the cleaning device has cleaning nozzles (22). The cleaning device has valve elements (23) that are controlled by an electronic controlling and/or regulating device. The valve elements and regulating device are formed such that the nozzles supply the cleaning liquid to section areas (24, 25) within a defined time interval during cleaning operation of an inner area of the liquid tank.