Integrated PTO Gearbox Compressor Mounting
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Solution Overview
Problem
The limited functional space in utility vehicles under the deck poses challenges in operably connecting an underdeck air compressor with a PTO unit using conventional drive lines and gearboxes, due to obstructions from vehicle components like frame members, fuel lines, and exhaust pipes.
Innovation Solution
An integrated unit combining the PTO, gearbox, and air compressor is directly mounted to the vehicle transmission, eliminating the need for a separate drive line and utilizing splash lubrication from the air compressor to lubricate the gearbox, thereby reducing installation difficulties and footprint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a separate drive line and gear box are used to connect the PTO unit and air compressor, then the gear ratio can be reduced, but the device complexity and installation difficulty increase due to space restrictions and undercarriage obstruction
Solution Approach 1:
The patent merges the PTO unit, gear box, and air compressor into a single integrated assembly. The gear box is positioned directly between the PTO output shaft and the air compressor input shaft, eliminating the need for a separate drive line. This consolidation reduces device complexity while maintaining the necessary gear ratio reduction for efficient power transmission.
2Area of stationary object
If the air compressor is remotely mounted to the vehicle frame, then space restrictions are accommodated, but the installation difficulty increases due to the need for separate drive lines and fluid lines
Solution Approach 1:
The integrated assembly combines the PTO unit, gear box, and air compressor into a single unit that can be mounted close to the transmission. This eliminates the need for long drive lines and fluid lines, significantly reducing installation difficulty while still accommodating space restrictions through the compact integrated design.
Solution Approach 2:
The gear box serves as an intermediary component that directly connects the PTO unit and air compressor within the integrated assembly. This intermediary positioning eliminates the need for separate drive lines and simplifies the connection between power source and compressor, reducing installation complexity.
3Power
If a conventional drive line is used to connect the PTO unit and air compressor, then power transmission is achieved, but the footprint increases and installation becomes more difficult
Solution Approach 1:
By integrating the PTO unit, gear box, and air compressor into a single assembly, the patent minimizes the overall footprint. The direct connection between components eliminates the need for long drive lines and reduces the space required for power transmission, resulting in a compact installation suitable for vehicles with limited undercarriage space.
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 integrated solution simplifies installation, reduces component complexity, and allows for efficient operation of the air compressor by consolidating components and eliminating the need for additional mounting, while maintaining a compact and lightweight design.
Implementation Method 1
The gearbox is lubricated by splash lubrication from fluids circulated from the air compressor under differential pressure.
Data Source
AI summary
A combination integrates a power take-off unit, a gear box and air compressor into a single component that is mounted to and suspended from the side mount PTO provision of a vehicle transmission. The combination eliminates the need for a separate drive line and provides a reduced footprint for underdeck applications. The combination also reduces the installation difficulties by reducing fluid lines and consolidating component location.