PTO Electrical Generator System for Utility Truck Air Compressor
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need for a power-take-off (PTO) electrical generator system that can effectively drive a rotary screw type air compressor in space-confined environments, such as utility trucks, as existing systems do not employ a PTO to drive a generator that powers a rotary screw type air compressor.
Innovation Solution
A specially designed PTO electrical generator system that includes a controller, a PTO coupled to the truck's engine, an electrical generator driven by the PTO, and an air compressor mechanically driven by the generator, with a cooling fan assembly, where the generator is intermediately positioned between the PTO and the air compressor, allowing for efficient power transmission and reduced space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a PTO is used to directly drive an air compressor, then the system can provide high CFM output, but the system requires more space and cannot efficiently utilize higher kilowatt power
Solution Approach 1:
The patent introduces an electrical generator as an intermediary component between the PTO and the air compressor. The PTO drives the generator, which converts mechanical energy to electrical energy, then drives the air compressor. This intermediary arrangement allows for more flexible power transmission and space optimization compared to direct mechanical coupling.
Solution Approach 2:
The patent replaces the direct mechanical drive system with an electromechanical system. Instead of direct mechanical coupling between PTO and compressor, the system uses electrical energy transmission through a generator and motor, allowing for more compact arrangement and better power utilization.
2Device complexity
If conventional PTO-compressor systems are used, then the system layout is simple, but the system cannot utilize higher kilowatts and lower CFM configurations
Solution Approach 1:
The patent creates a versatile power transmission system where the PTO-driven generator can serve multiple functions. The generator can drive different types of air compressors with varying power and CFM requirements, making the system adaptable to different customer needs while maintaining a relatively simple overall layout.
3Power
If the generator is positioned directly at the PTO without intermediate positioning, then power transmission is direct, but space configuration is not optimized for utility truck environments
Solution Approach 1:
The patent optimizes the spatial arrangement by positioning the generator intermediately between the PTO and air compressor, utilizing three-dimensional space efficiently. This arrangement allows for better heat dissipation, maintenance access, and integration with the utility truck's existing structure, transforming a simple linear power transmission into an optimized spatial configuration.
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 configuration enables the use of higher kilowatts and lower CFM, targets specific customer needs, and utilizes mechanical power from an on-board generator to drive auxiliary equipment, providing a durable and versatile solution for space-limited areas.
Implementation Method 1
The rotor typically generates a magnetic field (using either permanent magnets or windings), which interacts with windings maintained on the stator. As the magnetic field intercepts the windings, an electrical current is generated.
Implementation Method 2
a cooling fan assembly located at the existing utility truck and directly coupled to the air compressor
Data Source
AI summary
A power-take-off (PTO) electrical generator system for mechanically driving a rotary screw type air compressor employed in a space-confined environment of a utility truck, includes: a controller mounted to a portion of an existing utility truck, a PTO operably coupled to an existing engine of the existing utility truck as well as the controller, an electrical generator located at the existing utility truck and operably coupled directly to and driven by the PTO, an air compressor directly coupled to and mechanically driven directly by the electrical generator and located at a space-confined section of the existing utility truck, and a cooling fan assembly located at the existing utility truck and directly coupled to the air compressor. The electrical generator is intermediately positioned between the PTO and the air compressor.