Motor-Driven Pressure Regulator for Stable Variable Flow Control
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Solution Overview
Problem
Conventional regulators for high-pressure fluid discharge are mechanically limited in discharge pressure range and flow rate range due to reliance on pressure adjusting springs, making it difficult to maintain various specified discharge pressures and cope with fluctuations in required flow rates.
Innovation Solution
An electronically controlled regulator that uses an electric motor and valve shaft moving structure to adjust discharge pressure by changing the distance between the valve body and valve seat, with a pressure sensor controlling the operation to maintain set pressures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pressure adjusting spring is used to mechanically adjust discharge pressure, then the regulator can maintain a stable discharge pressure, but the discharge pressure range and flow rate range are mechanically limited
Solution Approach 1:
The patent replaces the mechanical pressure adjusting spring system with an electronically controlled valve shaft moving structure. The electric motor-driven mechanism can adjust the valve body position to change the opening area, enabling electronic control of discharge pressure. This substitution eliminates the mechanical limitations of spring-based systems while maintaining pressure stability through electronic feedback control based on pressure sensor readings.
Solution Approach 2:
The patent introduces a dynamic, adjustable valve opening area controlled by an electric motor. Instead of a fixed mechanical spring system, the valve shaft can be moved to different positions to create variable opening areas. This dynamic adjustment capability allows the regulator to adapt to different discharge pressure requirements and flow rate conditions, resolving the contradiction between stability and versatility.
2Device complexity
If the pressure adjusting spring is fixed to a specified set height, then the regulator structure is simplified, but the discharge pressure range and flow rate range are limited due to pressure drop variations
Solution Approach 1:
The patent transforms the fixed valve shaft position into a dynamically adjustable position using an electric motor-driven mechanism. The valve shaft can be moved to different heights to change the opening area, enabling the regulator to handle various discharge pressures and flow rates. This dynamic adjustment maintains relatively simple structure while significantly improving adaptability.
Solution Approach 2:
The patent changes the key parameter of valve opening area from a fixed value to a variable parameter that can be adjusted electronically. By controlling the valve shaft position through an electric motor, the opening area can be modified to match different flow rate requirements and discharge pressure settings, resolving the limitation of fixed spring height designs.
3Reliability
If conventional mechanical pressure reduction structure is used, then the regulator can reduce high-pressure fluid to predetermined pressure, but it requires preparing different pressure adjusting springs for each specified discharge pressure
Solution Approach 1:
The patent creates a universal regulator design where a single electric motor-driven valve shaft mechanism can perform multiple pressure reduction functions. Instead of manufacturing different regulators with different springs for different discharge pressures, the same basic structure can be electronically configured to achieve various discharge pressure settings, greatly simplifying manufacturing and inventory management.
Solution Approach 2:
The patent replaces the need for multiple mechanical spring components with a single electronic control system. The electric motor-driven valve shaft mechanism can be programmed to provide different pressure reductions, eliminating the need to prepare and stock multiple types of pressure adjusting springs for different applications.
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 automatic maintenance of various specified discharge pressures while flexibly coping with fluctuations in required flow rates, eliminating the mechanical limitations of conventional regulators.
Implementation Method 1
discharge pressure adjusting means includes an electric motor and valve shaft moving structure that operates by driving of the electric motor
Implementation Method 2
pressure sensor that is arranged in series or in parallel with the discharge port and detects the pressure of the pressure-reduced fluid
Data Source
AI summary
An electronically controlled regulator is disclosed. The electronically controlled regulator reduces and adjusts a pressure of a high-pressure fluid introduced through an introduction port with a pressure adjusting valve and discharges a pressure-reduced fluid having a set pressure through a discharge port. A discharge pressure adjusting mechanism includes a valve shaft moving structure that operates by driving of an electric motor and moves a valve shaft to change a distance between a valve body and a valve seat, and opens and closes the pressure adjusting valve so that the pressure of the pressure-reduced fluid maintains the set pressure while operating the valve shaft moving structure with the electric motor on the basis of a value of a pressure sensor that detects the pressure of the pressure-reduced fluid.