Residual Pressure Removal in Motor Driven Air Compressor Systems
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Residual pressure in the air filling lines of a motor driven air compressor management system can cause inefficient operation and overheating when the compressor is restarted, leading to increased electrical load and potential operational failures.
Innovation Solution
A system and method that includes a pneumatic switch and solenoid valve configuration to actively remove residual pressure from the air filling lines by connecting the air tank directly to the exhaust port valve of the separator cooler, allowing controlled release of compressed air when the compressor is turned off, ensuring smooth operation upon restart.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If residual pressure remains in the air filling lines after compressor shutdown, then the system maintains pressure for potential quick restart, but the motor experiences increased electrical load and overheating during restart
Solution Approach 1:
The patent extracts and removes the harmful residual pressure from the air filling lines by introducing a pressure release valve that actively vents compressed air back to the atmosphere or exhaust system. This extraction of residual pressure eliminates the root cause of motor overload and overheating during restart, directly resolving the contradiction between maintaining system pressure and reducing electrical load.
Solution Approach 2:
The patent implements preliminary action by automatically releasing residual pressure through the pressure release valve immediately upon compressor shutdown. This preliminary removal of pressure before potential restart prevents the accumulation of harmful pressure levels, ensuring the motor starts under optimal conditions without excessive electrical load or thermal stress.
2Productivity
If residual pressure accumulates in the air filling lines, then compressed air is available for immediate use, but the compressor experiences operational inefficiencies and potential failures
Solution Approach 1:
The patent converts the harmful effect of residual pressure into a beneficial control mechanism. The pressure release valve is designed to activate at specific pressure thresholds, transforming the potentially harmful residual pressure into a controlled, periodic pressure management system. This maintains compressed air availability while preventing harmful pressure accumulation that would cause operational failures.
Solution Approach 2:
The pressure release valve operates periodically based on pressure threshold detection, creating a rhythmic pressure management cycle. This periodic activation ensures compressed air is maintained at optimal levels for immediate use while systematically preventing pressure buildup that would compromise compressor reliability, thus balancing productivity and operational stability.
3Reliability
If a double check valve is used to manage pressure, then pressure control is achieved, but the system complexity increases
Solution Approach 1:
The patent extracts and removes the unnecessary double check valve from the system, replacing it with a simpler pressure release valve that achieves the same pressure control function. This elimination of redundant components directly reduces system complexity while maintaining effective pressure management through the more straightforward pressure release mechanism.
Solution Approach 2:
The pressure release valve is designed to perform multiple functions: it releases residual pressure, prevents motor overload, and maintains optimal pressure levels. This multi-functional component replaces the specialized double check valve system, achieving pressure control with a single, versatile component that reduces overall system 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
This configuration effectively removes residual pressure, preventing operational inefficiencies and overheating, ensuring continuous smooth operation of the motor driven air compressor and reducing the risk of electrical overload, while also simplifying the system by eliminating the need for a double check valve.
Implementation Method 1
the separator cooler 20 primarily removes foreign materials of the compressed air generated in the motor driven air compressor 10 (e.g., an oil component and water which are vaporized as a hydraulic fluid of the motor driven air compressor 10) in a centrifugal separation manner
Implementation Method 2
the air dryer 30 serves to secondarily remove foreign materials (residual oil, moisture, and the like) of the compressed air flowing from the separator cooler 20 in an absorption manner
Data Source
AI summary
The present disclosure provides a system and method for removing a residual pressure of compressed air in a motor driven air compressor management system applied to an eco-friendly vehicle. That is, the present disclosure provides a system and a method for removing a residual pressure in a motor driven air compressor management system, which allow a continuous smooth operation of a motor driven air compressor by easily removing a residual pressure of compressed air before a subsequent operation of the motor driven air compressor even though the residual pressure of the compressed air, which fills in an air tank during an operation of the motor driven air compressor, remains according to a tuning off of the motor driven air compressor.