48-Volt Agricultural Sprayer With Independent Air and Liquid Flow Control
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Solution Overview
Problem
Existing agricultural sprayer machines suffer from mechanical transmissions that are bulky, inefficient, costly, and lack precise control over airflow rate, chemical flow rate, and direction, leading to inefficiencies and environmental waste.
Innovation Solution
An agricultural sprayer machine equipped with electric motors and independent control systems for blowers and nebuliser nozzles, eliminating mechanical transmission and enabling precise control over airflow, chemical flow, and direction through an electronic control unit and optical recognition system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If mechanical transmission from tractor is used, then power is transmitted to fans and pump, but the system becomes bulky, heavy, inefficient, and costly
Solution Approach 1:
The patent replaces the mechanical transmission system (universal joints, shafts, gear reducers) with an electrical system consisting of an electric motor, electrical wiring, and electronic controllers. This substitution eliminates the bulky mechanical components while maintaining power transmission capability and adding precise control functionality through the electronic system.
2Ease of operation
If mechanical transmission is used, then fans and pump are driven, but precise control of airflow rate and chemical flow rate is not achieved
Solution Approach 1:
The patent replaces mechanical control mechanisms with an electronic control system that uses electrical signals to precisely regulate the electric motor driving the fan and the pump. This electronic system enables independent and precise control of airflow rate and chemical flow rate through adjustable electrical parameters, achieving control precision that mechanical systems cannot provide.
3Productivity
If uniform spraying is applied, then entire area is covered, but chemical product is wasted on areas where it is not necessary
Solution Approach 1:
The patent implements local quality by enabling independent control of each blower and nozzle assembly through the electronic control system. This allows the spraying system to apply chemical product selectively only to specific areas where it is needed, rather than uniformly across the entire sprayed area. The electronic controllers can be programmed to activate or deactivate individual nozzles based on the actual requirements of different zones.
4Power
If mechanical transmission components are used, then power is transmitted, but fuel consumption increases
Solution Approach 1:
The patent replaces the mechanical transmission system with an electric motor-driven system. This substitution eliminates the energy losses associated with mechanical friction, gear inefficiency, and universal joint losses. The electric motor provides direct drive to the fan and pump, significantly improving power transmission efficiency and reducing overall energy consumption compared to the mechanical transmission approach.
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
Achieves precise and efficient spraying with reduced fuel consumption, chemical savings, and environmental benefits by eliminating mechanical transmission and optimizing product delivery to only where necessary.
Implementation Method 1
a first electric motor configured to drive the blower
Implementation Method 2
a second electric motor configured to drive the pump
Implementation Method 3
Each blower comprises an impeller configured to produce an airflow
Implementation Method 4
The nozzles determine the nebulisation of the liquid inside the airflow
Data Source
AI summary
A 48-volt electric sprayer machine including a plurality of blowers, each configured to produce an airflow; a plurality of nebuliser nozzles, each to deliver a nebulised product in the airflow produced by the blowers; an electric pump connected to the nozzles and supplies a flow of product to the nebulisers. Each blower is equipped with an electronic controller, connected to the electric motor and configured to control the actuation of the electric motor. Each nebuliser nozzle is equipped with a control solenoid valve, adapted to control the delivery of product. The pump is equipped with an electronic controller; the controllers of the blowers, the control solenoid valves and the controller of the pump are connected with digital transmission to an electronic control unit to control the independent actuation of each thereof, as a function of the conditions of use of the sprayer machine.