Variable Pulley Air Compressor Module Torque Control
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Solution Overview
Problem
Existing motor-driven air compressor and hydraulic pump modules cannot adjust the operational speed of the air compressor and suffer from sudden torque changes, leading to potential damage and water production in the air pipe due to fixed gear ratios and clutch-controlled torque transmission.
Innovation Solution
A motor-driven air compressor and hydraulic pump module with a continuously variable transmission system, utilizing a belt and variable pulley unit to smoothly adjust the rotational speed of the air compressor, preventing sudden torque changes and incorporating a controller to maintain optimal pressure in the air tank.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a clutch and fixed pulley system is used to connect the motor to the air compressor, then the air compressor can be connected and disconnected, but the rotational speed of the air compressor cannot be adjusted and sudden torque changes occur
Solution Approach 1:
The patent applies a variable pulley system instead of a fixed pulley arrangement. The variable pulley allows continuous adjustment of the transmission ratio between the motor and air compressor, enabling dynamic speed control. This resolves the contradiction by making the transmission system adaptable while maintaining smooth power transmission without sudden torque changes.
Solution Approach 2:
The patent changes the transmission ratio parameter continuously through the variable pulley mechanism rather than using fixed ratios. This allows the rotational speed of the air compressor to be adjusted according to operational needs while preventing sudden torque changes that would occur with discrete clutch engagement/disengagement.
2Reliability
If a clutch is used to control torque transmission to the air compressor, then power can be cut when not needed, but sudden connection/disconnection causes shock and potential damage
Solution Approach 1:
The variable pulley system provides dynamic torque transmission control, allowing gradual engagement and disengagement rather than sudden clutch action. This protects the motor and air compressor from shock while maintaining the ability to control power transmission based on operational needs.
Solution Approach 2:
The belt-driven variable pulley system acts as a cushioning mechanism between the motor and air compressor. The belt tension and variable pulley ratio provide a gradual transition during engagement and disengagement, preventing sudden torque changes that could cause damage while still enabling efficient power transmission when needed.
3Device complexity
If a fixed gear ratio system is used, then the structure is simple, but the operational speed of the air compressor cannot be adjusted according to conditions
Solution Approach 1:
The patent replaces the fixed gear ratio system with a dynamic variable pulley mechanism. This allows the transmission ratio to be continuously adjusted based on operational conditions while maintaining a relatively simple belt-driven structure, thus achieving adaptability without excessive 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
Enables adjustable operational speed of the air compressor, reduces shock and water production in the air pipe, enhancing the durability of the motor and air compressor by preventing sudden torque disconnections and maintaining stable pressure.
Implementation Method 1
a belt 510...Torque from the motor 500 is transmitted to the air compressor 504 through the belt 510
Data Source
AI summary
The present invention provides a motor driven air compressor and hydraulic pump module that makes it possible to adjust the operational speed of the air compressor in accordance with the operational conditions of the air compressor, prevent shock and water from being produced in an air pipe connected to the air compressor by preventing sudden connection/disconnection of torque transmitted from the motor to the air compressor, by using a continuously variable transmission, thereby improving durability of the motor and the air compressor.