Fluid Guide Valve Structure for Smooth Pressure Switching
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Solution Overview
Problem
Conventional fluid transfer direction controlling valves experience abrupt increases in pressure due to resistance issues during fluid transfer, leading to smoothness problems and potential damage or leakage, especially during rapid operations.
Innovation Solution
The fluid transfer guiding/controlling device features a power transfer/distribution unit with radially arranged bypass flow ways and a central passage, where stop sections and communication notches allow for smooth pressure regulation by switching between bypass and circulation flow ways, reducing pressure impacts and enabling seamless path changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional switching valve structure is used to switch between different flow ways, then the valve structure is simple and easy to manufacture, but the sectional area of the opening is gradually reduced leading to abrupt increase of flowing resistance and pressure
Solution Approach 1:
The valve structure is segmented into multiple independent flow ways (first flow way, second flow way, third flow way) with separate control mechanisms. Each flow way can be switched independently through its own control hole and control member, allowing gradual redistribution of fluid flow rather than abrupt changes in a single passage.
Solution Approach 2:
The valve employs dynamic control members (such as movable plugs or sliders) that can adjust the opening area of each flow way continuously or in controlled steps. This dynamic adjustment capability allows the valve to maintain relatively stable pressure by progressively opening alternative flow paths as the primary path closes.
2Speed
If conventional switching valve structure is used for rapid operation, then switching speed is fast, but pressure in the fluid passage severely changes causing damage or leakage
Solution Approach 1:
The valve structure includes preliminary opening paths or bypass channels that can be activated before the main flow way is completely closed. This preliminary action ensures that alternative flow paths are ready to accommodate the fluid immediately, preventing pressure surges and protecting the valve components from damage during rapid switching operations.
Solution Approach 2:
The design incorporates cushioning elements or gradual transition zones in the flow paths that absorb pressure changes during switching. These cushioning features are built into the valve structure in advance, providing protection against pressure impacts that would otherwise cause damage or leakage during high-speed operation.
3Volume of moving object
If spherical valve core body is used in switching valve, then the valve structure is compact, but the sectional area reduction causes abrupt pressure increase affecting smoothness
Solution Approach 1:
The valve replaces the fixed spherical core with dynamic control members that can move independently within each flow way. This allows for controlled, gradual adjustment of opening areas in multiple paths simultaneously, maintaining smooth fluid flow transitions while keeping the valve body compact through efficient spatial arrangement of the control mechanisms.
Data Source
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AI summary
A fluid transfer guiding/controlling device and an application system thereof. The guiding/controlling device is composed of a power transfer/distribution unit and a switch member. The power transfer/distribution unit has a first chamber and a second chamber. At least one bypass flow ways are disposed in the first chamber. Stop sections are disposed in the second chamber. Communication notches are disposed in adjacency to the stop sections in communication with an outer side. The switch member is disposed in the first and second chambers. The switch member has an internal flow guide passage and a first flow guide window and a second flow guide window. The first flow guide window is switchable between the bypass flow ways to selectively communicate with one of the bypass flow ways. The second flow guide window is synchronously gradually moved from the stop section to pass through a corresponding communication notch, whereby part of the fluid in the flow guide passage flows through the communication notch to discharge to the outer side, the abrupt increase/decrease of the pressure of the fluid is effectively relieved. Multiple fluid transfer guiding/controlling devices can be connected with each other to provide various fluid control functions in accordance with different requirements.