Localized Injection System for Agricultural Sprayer Lag Time
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Solution Overview
Problem
Agricultural sprayers face challenges in achieving even distribution of products due to irregular field shapes and sprayer configurations, leading to waste and unpredictable application of fertilizers, insecticides, and herbicides, with existing systems experiencing lag time and latency in injecting products into the carrier flow.
Innovation Solution
A localized product injection system that communicates directly with sprayer sections and nozzles, providing a pressurized source of injection products immediately before dispensing, eliminating lag time and allowing for instantaneous mixing and control of product concentration at each dispenser.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If product injection is performed upstream through header and boom tubes, then product is delivered to multiple sections, but lag time and latency occur between injection and application
Solution Approach 1:
The injection system is divided into multiple independent localized injection interfaces, each serving a specific product dispenser (boom tube or nozzle). This segmentation eliminates the need for long upstream injection lines, reducing lag time while maintaining system functionality through modular independence.
Solution Approach 2:
The injection system transitions from a centralized upstream injection approach to a distributed downstream injection architecture. By placing injection interfaces at the product dispenser level rather than upstream in the header, the system achieves instantaneous injection without the time delays associated with long fluid transport paths.
2Manufacturing precision
If centralized injection is used through header, then product distribution covers entire sprayer, but unpredictable variation in application occurs due to sprayer configuration
Solution Approach 1:
Each localized injection interface provides independent product injection and concentration control for its associated product dispenser. This local quality approach ensures uniform application by allowing each section to be precisely controlled according to its specific requirements, eliminating unpredictable variation caused by centralized injection.
Solution Approach 2:
The system enables dynamic, real-time adjustment of product concentration at each localized injection interface based on field conditions, crop requirements, or weed pressure variations. This dynamic control capability allows the sprayer to adapt to irregular field shapes and varying agricultural conditions, maintaining precision across diverse environments.
3Loss of time
If in-line mixing is performed upstream, then product is thoroughly mixed with carrier, but mixing time and latency are introduced
Solution Approach 1:
The injection product is pre-pressurized and held ready in reservoirs at each localized injection interface, immediately adjacent to the product dispensers. This preliminary preparation eliminates the need for upstream transport and mixing time, allowing instantaneous injection and concentration control right at the point of application.
Solution Approach 2:
Each localized injection interface acts as an intermediary between the injection product reservoir and the product dispenser. This intermediary structure enables precise, instantaneous control of product concentration by injecting the product directly into the carrier stream at the dispenser, eliminating the need for long upstream mixing paths and reducing both time and concentration control issues.
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 solution ensures precise and instantaneous application of agricultural products with minimal lag time and individualized control of product concentration, reducing waste and improving efficiency in product distribution across irregular field shapes.
Implementation Method 1
maintain a pressurized environment for the injection product to the injection interfaces
Implementation Method 2
instantaneous injection and mixing with the carrier flow immediately prior to dispensing
Data Source
AI summary
A localized product injection system for use with a product dispensing system includes a product injection reservoir coupled with an injection header. One or more injection boom tubes are coupled with the injection head. A plurality of localized injection interfaces are configured for coupling at corresponding product dispensers of a plurality of product dispensers. The plurality of localized injection interfaces in communication with the one or more injection boom tubes. Each of the localized injection interfaces includes an interface valve and an injection port in communication with the interface valve. The injection port is configured for localized coupling and injection to the corresponding product dispenser. The plurality of localized injection interfaces maintains a controlled pressurized environment of an injection product to the plurality of product dispensers.