Mobile Power Generating Machine with Dual-Mode Propulsion
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Solution Overview
Problem
Existing multi-purpose machines, such as those described in U.S. Pat. No. 6,649,289, are limited in their ability to support construction, agricultural, or mining tasks due to insufficient power generation and variability, and require multiple equipment pieces at a worksite, increasing operational costs and transportation expenses.
Innovation Solution
A mobile machine equipped with an internal combustion engine and generator producing 100-2600 kW of electrical power, featuring a traction device for propulsion and an interface to direct all electrical power either onboard or offboard, allowing for versatile use in multiple applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple different pieces of equipment are used at a worksite to perform various tasks, then the capability to accomplish different tasks is improved, but the operational cost and transportation expense increase
Solution Approach 1:
The mobile machine is designed with a power source that can perform multiple functions: it can propel the machine for mobile operations and simultaneously generate electrical power for stationary worksite operations. This multi-functionality allows a single machine to replace multiple specialized equipment, reducing operational costs and transportation expenses while maintaining the capability to accomplish various tasks
2Productivity
If a single mobile machine is used for multiple purposes, then the operational cost and transportation expense are reduced, but the power generation capability and output variability are insufficient
Solution Approach 1:
The system incorporates a controller that dynamically manages the power source's operation based on real-time power demands. The controller adjusts the power output to match varying loads, ensuring sufficient power generation capability and appropriate output variability to meet different worksite requirements while maintaining cost efficiency
3Power
If the power source is designed for high power output, then the power generation capability is improved, but the machine's mobility and ease of transport are reduced
Solution Approach 1:
The power source is designed to serve dual purposes: generating high power output when needed for worksite operations and enabling mobile operation when transport is required. This multi-functional design allows the system to achieve high power generation capability without permanently sacrificing mobility, as the same power source adapts to different operational modes
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 mobile machine efficiently reduces operational costs by combining power generation and tool operation in a single unit, capable of providing sufficient power for various tasks, including stationary power generation, thus minimizing the need for separate equipment and reducing transportation costs.
Implementation Method 1
an internal combustion engine and a generator driven by the internal combustion engine
Implementation Method 2
a generator driven by the internal combustion engine to produce electrical power
Data Source
AI summary
A dual purpose mobile machine is disclosed. The mobile machine may have a power source configured to propel the mobile machine and generate electrical power for use offboard the mobile machine. The machine may also have a work tool driven by the power source.