Vehicle Power Unit Layout for Left-Right Weight Balance
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Solution Overview
Problem
Existing vehicles with internal combustion engines and auxiliary machines face challenges in maintaining weight balance in the left-right direction, affecting operability and efficiency.
Innovation Solution
The power unit is configured with the internal combustion engine and compressor modularized, where the compressor and output shaft are disposed on opposite sides of the crankshaft, allowing for balanced weight distribution by positioning them between the front and rear wheels, with the compressor above and output shaft below the crankshaft.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the internal combustion engine and auxiliary machines are mounted in a conventional configuration, then the power unit can operate effectively, but the weight balance in the left-right direction deteriorates, affecting vehicle operability
Solution Approach 1:
The patent applies asymmetry by positioning the compressor on one side of the crankshaft and the output shaft on the other side, creating an asymmetric layout that achieves symmetric weight distribution. This asymmetric arrangement of components resolves the weight balance issue while maintaining effective power unit operation.
Solution Approach 2:
The patent transitions from a conventional planar arrangement to a three-dimensional configuration by positioning components at different lateral positions relative to the crankshaft. The compressor and output shaft are disposed on opposite sides in the left-right direction, creating a balanced weight distribution that improves vehicle operability.
2Stability of the object's composition
If the compressor and output shaft are positioned on opposite sides of the crankshaft, then weight balance is improved, but the device complexity increases due to modularized configuration
Solution Approach 1:
The patent applies segmentation by dividing the power unit into modular components - the internal combustion engine, compressor, and output shaft are positioned as separate but integrated modules. This segmentation allows the compressor and output shaft to be disposed on opposite sides of the crankshaft, achieving weight balance while maintaining manageable device complexity through modular architecture.
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 maintains a good weight balance in the vehicle, enhances space efficiency, reduces the power unit's size, and improves assembly and maintenance accessibility, while allowing for effective use of rotational power for multiple auxiliary machines.
Implementation Method 1
an internal combustion engine and a compressor are modularized, the compressor configured to operate on rotational power generated in the internal combustion engine
Implementation Method 2
the compressor configured to operate on rotational power generated in the internal combustion engine
Data Source
AI summary
A vehicle includes a front wheel, a rear wheel, and a power unit. The power unit is disposed between the front wheel and the rear wheel in a front-rear direction of the vehicle. An internal combustion engine and a compressor are modularized. The compressor is configured to operate on rotational power generated in the internal combustion engine. The internal combustion engine includes a crankshaft and an output shaft. Rotation axes of the crankshaft and the output shaft are parallel to each other and extend in the front-rear direction of the vehicle. The compressor is disposed on one side of the crankshaft in a left-right direction. The output shaft is disposed on the other side of the crankshaft in the left-right direction.