Rotary Cage Atomizer Angle Control for Low-Drift Aerial Spraying

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Solution Overview

Problem

Existing atomizers for aerial spraying in agriculture suffer from droplet drift and high energy consumption, failing to achieve accurate droplet size control and environmental adaptability.

Innovation Solution

An atomizer for aerial spraying comprising a rotary cage atomizer with a deflection mechanical arm, transmission assembly, and driving assembly, which adjusts the orientation and rotation speed of the atomizer based on ambient wind conditions to reduce droplet drift and improve droplet uniformity using a double atomization mode.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a centrifugal atomizing nozzle is used to achieve controllable droplet size, then droplet uniformity is improved, but droplet drift and energy consumption increase

Engineering Contradiction:

Improvedroplet size uniformityVSAvoiddroplet drift

Core Design Contradiction:

Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The atomizer is divided into two independent atomizing systems: a radial atomizing nozzle and a tangential atomizing nozzle. Each nozzle performs partial atomization function, and their combined effect produces uniform droplets without drift. The segmentation of functions resolves the contradiction by distributing the atomization task across multiple specialized components rather than relying on a single centrifugal system that causes drift.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent merges two different atomization mechanisms (radial and tangential) into a unified atomizing system. The radial atomizing nozzle creates droplets in one direction while the tangential atomizing nozzle creates droplets in another direction, and their combination produces uniformly distributed droplets that reduce drift while maintaining size control.

Inventive Principle:

Principle #5Merging (Combining)

2Adaptability or versatility

If a hydraulic atomizing spray head is used to spray liquid into air, then spraying function is achieved, but droplet size control and environmental adaptability are poor

Engineering Contradiction:

Improveenvironmental adaptabilityVSAvoiddroplet size control

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The atomizing nozzles are designed with adjustable parameters including spray angle, droplet size, and rotation speed. The rotation speed can be dynamically adjusted based on environmental conditions such as wind speed and crop type. This dynamic adjustability enables the system to adapt to different environmental conditions while maintaining precise droplet size control, resolving the contradiction between adaptability and precision.

Inventive Principle:

Principle #15Dynamics

3Productivity

If electrostatic nozzle is used to charge liquid pesticide, then deposition rate is improved, but atomization mechanism complexity increases

Engineering Contradiction:

Improvespraying efficiencyVSAvoidatomization mechanism complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent replaces complex electrostatic charging mechanisms with a simpler mechanical atomization system using radial and tangential nozzles. The mechanical atomization achieves high spraying efficiency through optimized nozzle design and rotation, eliminating the need for electrostatic components while maintaining or improving productivity.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 atomizer effectively reduces droplet drift and enhances spraying efficiency by adjusting the angle and rotation speed of the rotary cage atomizer, ensuring uniform droplet size and improved pesticide application.

Implementation Method 1

The centrifugal atomizing nozzle can atomize the liquid pesticide by means of a centrifugal turntable or a centrifugal rotary cage

Methodology Applied

Scientific EffectCentrifugal force: Centrifugal Force

Implementation Method 2

a paddle... The side wall is movably covered with the first adapter... the multiple blades are arranged on a periphery of the side wall

Methodology Applied

Scientific EffectAirflow generation:

Data Source

PatentUS20260108896A1Atomizer for aerial spraying and control method thereof

Publication Date: 2026.04.23 RES CENT OF INTELLIGENT EQUIP BEIJING ACAD OF AGRI & FORESTRY SCI

AI summary

An atomizer for aerial spraying and a control method thereof are provided and relate to the technical field of agricultural machinery. The atomizer for aerial spraying includes a rotary cage atomizer, a deflection mechanical arm, a transmission assembly, and a driving assembly. The rotary cage atomizer is connected to the deflection mechanical arm via a first adapter, the deflection mechanical arm is connected to the transmission assembly, the driving assembly drives the transmission assembly, so as to drive the deflection mechanical arm to adjust an angle, the angle of the rotary cage atomizer changes along with the change of the angle of the deflection mechanical arm, and a brushless motor is used to adjust the rotation speed of the rotary cage atomizer. The rotary cage atomizer is provided with a primary atomizing valve core and a secondary atomizing rotary cage.