Integrated Unloader Valve Assembly for Stable Compressed Air Discharge
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Solution Overview
Problem
Existing unloader valves in compressed air systems experience sudden and uncontrollable opening and closing, leading to non-uniform flow distribution and pressure fluctuations, which can result in inefficient air discharge and potential system failures.
Innovation Solution
An unloader valve assembly with an integrated safety valve that includes a piston and springs, featuring a safety valve activated by predetermined pressure conditions to control airflow, ensuring smooth transitions between open and closed states and uniform flow distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the unloader valve is designed to release compressed air when demand decreases, then the air system is prevented from over-pressurization, but the valve experiences sudden and uncontrollable opening/closing causing non-uniform flow distribution and pressure fluctuations
Solution Approach 1:
The patent applies the Dynamics principle by making the valve opening area variable through a controllable mechanism. The valve opening area is adjusted dynamically based on system pressure conditions, allowing the valve to transition smoothly between fully closed and fully open states rather than exhibiting sudden, uncontrollable switching. This dynamic adjustment ensures uniform flow distribution while maintaining reliable pressure control.
2Stress or pressure
If the unloader valve opens to discharge excess compressed air, then over-pressurization is prevented, but pressure fluctuations and non-uniform flow distribution occur
Solution Approach 1:
The patent implements the Feedback principle through a control mechanism that continuously monitors system pressure and adjusts the valve opening area accordingly. When pressure approaches the maximum limit, the control mechanism gradually increases the valve opening area to discharge excess air. This feedback control prevents sudden pressure drops and fluctuations, ensuring stable pressure response while maintaining the maximum pressure limitation.
3Reliability
If a safety valve is added to control airflow based on predetermined pressure conditions, then system stability is enhanced, but device complexity increases
Solution Approach 1:
The patent applies the Merging principle by integrating the safety valve function directly into the unloader valve assembly. The control mechanism that adjusts the valve opening area is incorporated within the existing unloader valve structure, combining multiple functions (pressure control, flow regulation, and safety protection) into a single integrated assembly. This approach enhances system stability while 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 integrated safety valve provides reliable and controlled operation, preventing sudden pressure changes and ensuring consistent air discharge, enhancing system stability and efficiency.
Implementation Method 1
The unloader valve comprises a piston and a first spring, and wherein the piston is configured to move against a biasing force of the first spring between a seated position on a first valve seat and a first unseated position
Implementation Method 2
the safety valve comprises a valve stem and a second spring acting on the valve stem to thereby keep the safety valve in a closed state
Implementation Method 3
When the pressure in the storage tanks reaches a maximum level, the unloader valve opens, thereby diverting the compressed air from the compressor and allowing excess air to escape
Implementation Method 4
the piston is configured to move against a biasing force of the first spring between a seated position on a first valve seat and a first unseated position
Data Source
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AI summary
An unloader valve assembly (102) for a compressed air supply system (100), in particular for a compressed air supply system of a vehicle, the unloader valve assembly (102) comprising an unloader valve (104), wherein the unloader valve (104) comprises a piston (106) and a first spring (108), and wherein the piston is configured to move against a biasing force of the first spring (108) between a seated position on a first valve seat (110) and a first unseated position, the unloader valve assembly (102) further comprising a safety valve (130), wherein the safety valve (130) is configured to be activated for directing a compressed air received from an inlet channel (114) to a discharge channel (116), when a pressure in the inlet channel (114) exceeds a first predetermined condition.