GPS-Linked Servo Dump Gate With Mechanical Backup

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Solution Overview

Problem

Traditional crop duster dump gate systems require significant pilot effort and are prone to fatigue or injury due to mechanical actuation, while hydraulic systems are expensive, heavy, and complex, with high maintenance requirements and potential for system failure.

Innovation Solution

An electric servo dump gate system that automates gate operation using a GPS-linked electric gate controller and mechanical linkages, allowing for precise variable and constant rate application, with redundancy for emergency mechanical control, reducing weight and maintenance needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a mechanical gate system is used, then the system remains simple and reliable, but the pilot requires significant force to operate leading to fatigue or injury

Engineering Contradiction:
Improvepilot effortVSAvoidsystem complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces the purely mechanical gate actuation system with an electric servo system. The servo motor receives commands from the pilot through a controller and automatically adjusts the gate position, eliminating the need for the pilot to apply significant physical force while maintaining system simplicity through electronic control rather than complex mechanical linkages.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Extent of automation

If a hydraulic dump gate system is installed, then gate opening automation and precision are increased, but the system becomes expensive and heavy weighing more than 200 lbs

Engineering Contradiction:
Improvegate opening automationVSAvoidsystem weight
Core Design Contradiction:
Extent of automationVSWeight of moving object

Solution Approach 1:

The patent substitutes the hydraulic system with an electric servo system. The servo motor provides sufficient torque to actuate the gate mechanism directly, eliminating the need for heavy hydraulic pumps, valves, and fluid reservoirs. This achieves full automation of gate opening while reducing system weight from over 200 lbs to a fraction of that weight.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the actuation method from hydraulic pressure to electric motor torque. By using a brushless servo motor with appropriate gear reduction, the system achieves the same gate actuation function with significantly reduced weight and complexity, while maintaining precise control capability.

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If a hydraulic dump gate system is installed, then variable and constant rate application precision is improved, but maintenance requirements and cost increase significantly

Engineering Contradiction:
Improveapplication rate precisionVSAvoidmaintenance requirements
Core Design Contradiction:
Measurement precisionVSEase of manufacture

Solution Approach 1:

The patent replaces the hydraulic control system with an electric servo control system. The servo motor receives digital commands from a controller that calculates the required gate position based on ground speed and desired application rate. This eliminates hydraulic fluid leaks, pump maintenance, and valve servicing while maintaining precise variable and constant rate application capability through electronic control.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Extent of automation

If a hydraulic dump gate system is installed, then automation is achieved, but the system becomes complex with multiple components increasing failure risk

Engineering Contradiction:
Improveautomation levelVSAvoidsystem reliability
Core Design Contradiction:
Extent of automationVSReliability

Solution Approach 1:

The patent replaces the complex hydraulic system with a simplified electric servo system consisting of a motor, controller, and position sensor. This reduction in component count and complexity directly improves reliability while maintaining full automation. The system has fewer moving parts, no hydraulic fluid to leak, and no complex valve assemblies that could fail.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

5Extent of automation

If traditional mechanical linkages are removed for hydraulic system installation, then automation is achieved, but installation time and labor hours increase

Engineering Contradiction:
Improvegate control automationVSAvoidinstallation time
Core Design Contradiction:
Extent of automationVSLoss of time

Solution Approach 1:

The patent designs the electric servo system to interface with the existing mechanical gate linkage system. The servo motor connects to the same bell cranks and linkages that the pilot's control lever previously actuated. This universal compatibility allows the system to be installed by simply adding the servo motor and controller without removing or modifying the proven mechanical gate actuation mechanism, significantly reducing installation time and labor.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 electric servo system provides cost-effective, precise, and reliable operation with reduced weight and complexity, enabling continuous aircraft functionality even in case of system failures by reverting to mechanical linkages, while maintaining precision and redundancy.

Implementation Method 1

an electric servo, wherein the gate controller upon the actuation by the pilot sends commands to the electric servo which controls the position of the gate

Methodology Applied
Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Data Source

PatentUS20230045777A9Electric Servo Dump Gate System On A Crop Duster
Publication Date: 2023.02.09 REABE TROY
  • US20230045777A9 patent drawing
  • US20230045777A9 patent drawing

AI summary

The present invention is an Electric servo system which controls and automates gate openings based on GPS speed and position data that results in precise and reliable modern variable and constant rate application. The Electric servo system also allows for Mechanical gate linkages to remain intact, resulting in few changes to the aircraft and redundancy of emergency components. A Mechanical input connect/disconnect is used to effortlessly transfer between the automated Electric servo system and the Mechanical gate system.