Two-Cylinder Air Compressor Belt Drive for High-Torque Output
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Solution Overview
Problem
Traditional two-stage compressors face high load conditions that increase motor torque requirements, leading to increased costs due to the need for more powerful motors.
Innovation Solution
A two-cylinder piston compressor design with a pulley and flywheel system, utilizing a gear ratio of 27:104, a drive belt, and a crankshaft to transmit torque efficiently, reducing rotational speed and increasing torque without increasing motor cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the motor torque is increased to meet high load conditions, then the compressor can handle higher load requirements, but the cost of the motor and the whole machine will be greatly increased
Solution Approach 1:
A belt transmission system with a pulley is introduced as an intermediary between the motor and the crankshaft. The pulley has a smaller diameter than the flywheel, creating a speed reduction and torque multiplication effect. This allows the motor to operate at optimal torque levels while the belt transmission system delivers the required high torque to the compressor mechanism, thereby avoiding the need for an expensive high-torque motor.
Solution Approach 2:
The system changes the operational parameters by introducing a gear ratio mechanism through the belt transmission. The ratio between the pulley diameter and flywheel diameter (27:104) creates a significant speed reduction and torque multiplication effect. This parameter change allows the motor to run at lower torque requirements while still delivering high torque to the compressor, optimizing both motor cost and performance.
2Power
If a belt transmission system with pulley and flywheel is introduced, then torque is transmitted efficiently and rotational speed is reduced, but the device complexity increases
Solution Approach 1:
The belt transmission system serves as a simple intermediary mechanism that provides both speed reduction and torque multiplication. The pulley and flywheel arrangement is a classic mechanical transmission system that is relatively simple in structure but effective in function, adding minimal complexity while achieving the desired power transmission characteristics.
Solution Approach 2:
The belt transmission system with pulley and flywheel performs multiple functions simultaneously: it transmits torque from the motor to the crankshaft, reduces the rotational speed, and multiplies the torque. This multi-functionality is achieved through a single mechanical arrangement, avoiding the need for separate mechanisms for each function and thereby minimizing the increase in device complexity.
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 design achieves high-pressure air output with enhanced torque, improving efficiency and reducing costs by optimizing the motor's operational load conditions.
Implementation Method 1
The pulley transmits torque from said output shaft to said flywheel so as to rotate said flywheel about said axis upon rotation of said output shaft
Implementation Method 2
The diameter of the pulley is smaller than that of said flywheel. The ratio between the diameter of the pulley and that of flywheel is about 27:104
Implementation Method 3
The crankshaft interconnects said flywheel with said piston so as to reciprocate said piston in said cylinder upon rotation of said flywheel
Data Source
AI summary
The patent application discloses an air compressor. The air compressor comprises a pair of pistons, a motor, a flywheel, a pulley, a crankshaft. Each piston is reciprocable in a corresponding one of the cylinders so as to reciprocate along the axis of the corresponding cylinder to vary a working volume of the cylinder. The motor comprise an output shaft. The pully transmits torque from said output shaft to said flywheel so as to rotate said flywheel about said axis upon rotation of said output shaft. The crankshaft interconnects said flywheel with said piston so as to reciprocate said piston in said cylinder upon rotation of said flywheel. The diameter of the pulley is smaller than that of said flywheel.