Angle-Seat Pulse Valve Control for High-Frequency Fluid Supply
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Solution Overview
Problem
Existing pulse generating systems for working fluid supplies are complex and costly, and they struggle to ensure reliable operation at high pulse frequencies while varying frequency and pressure effectively.
Innovation Solution
A pulse generating system with a simple structure, comprising a pipe, a source of pressurized working fluid, an angle-seat valve, a source of pressurized control fluid, a pressure regulator, a three-port, two-position control valve, and a control device that regulates the pressure and valve position to generate pulses of pulsed working fluid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing pulse generating systems are used, then pulse generation capability is provided, but the system structure becomes complex and costly
Solution Approach 1:
The system separates control fluid supply and pressure regulation into distinct functional modules (control valve and pressure regulator), allowing each component to be optimized independently while simplifying the overall system architecture and reducing complexity
Solution Approach 2:
The angle-seat valve serves multiple functions: it acts as both the pulse generation actuator and the control element for fluid flow, while the piston mechanism provides both positioning and sealing functions, reducing the need for separate components
2Productivity
If existing pulse generating systems are used, then basic pulse generation is achieved, but reliable operation at high pulse frequencies cannot be guaranteed
Solution Approach 1:
The system uses pneumatic control fluid and hydraulic principles in the angle-seat valve piston mechanism to achieve rapid, reliable actuation at high frequencies, leveraging fluid compressibility and pressure response for precise control
Solution Approach 2:
The piston in the angle-seat valve is designed with dynamic positioning capability, allowing it to respond rapidly to control fluid pressure changes and achieve high-frequency cycling while maintaining reliable operation through controlled motion dynamics
3Adaptability or versatility
If existing pulse generating systems are used, then pulse generation is possible, but frequency and pressure variation is complicated
Solution Approach 1:
The system enables independent adjustment of pulse frequency through control valve positioning and pulse pressure through pressure regulator settings, allowing versatile parameter variation without increasing system complexity
Solution Approach 2:
The control fluid acts as an intermediary between the control device and the angle-seat valve piston, transmitting control signals for frequency adjustment, while the pressure regulator serves as an intermediary for pressure control, simplifying the overall control architecture
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 system allows for reliable operation at high frequencies with a simple structure, enabling effective variation of frequency and pressure, thus improving the efficiency and reliability of pulsed working fluid supply systems.
Implementation Method 1
a pressure regulator, fluidly connected to the source of pressurized control fluid and configured to regulate a pressure of the control fluid
Implementation Method 2
the three-port, two-position control valve being configured to control displacement of the angle-seat valve piston to any position between the first end-of-stroke position and the second end-of-stroke position, including the first end-of-stroke position and the second end-of-stroke position, by means of the control fluid whose pressure is regulated by the pressure regulator
Data Source
AI summary
A pulse generating system for a pulsed working fluid supply, comprising a pipe, a source of pressurized working fluid connected to the pipe, an angle-seat valve connected to the pipe, a source of pressurized control fluid, a pressure regulator connected to the source of pressurized control fluid, a three-port, two-position control valve connected to the pressure regulator and to the angle-seat valve and configured to control the angle-seat valve, and a control device configured to control the pressure regulator as a function of desired pulse amplitudes and to control the control valve as a function of desired pulse frequencies. The invention also relates to a washing machine comprising a system.