Magnetic Pinch Valve for Clean Fluid Flow Control
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Solution Overview
Problem
Existing valves fail to effectively control fluid flow rates while maintaining the cleanliness of the fluid passing through them.
Innovation Solution
A valve design featuring a case, a tube, a hinge fulcrum, a contact member, and a driving device that applies a non-contact magnetic force to adjust the contact force on the tube, allowing for adjustable inner diameter and flow rate control without direct contact, ensuring the fluid remains clean.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional valve mechanism is used to control fluid flow rate, then the flow rate can be adjusted, but the fluid may become contaminated by contact with valve components
Solution Approach 1:
The patent replaces the conventional mechanical actuation system with a magnetic field-based actuation system. The driving device generates a magnetic field that acts on the contact member through the tube wall, eliminating the need for mechanical connections between the actuator and the tube-closing mechanism. This substitution allows flow rate control without direct mechanical contact that could contaminate the fluid.
Solution Approach 2:
The patent introduces a magnetic field as an intermediary between the driving device and the contact member. The magnetic field penetrates the tube wall to transmit force without physical contact, serving as a mediator that transfers actuation force while maintaining fluid isolation. This intermediary mechanism enables control functionality while preventing contamination pathways.
2Reliability
If a contact-based actuation mechanism is used, then the tube can be effectively closed to control flow, but external substances may enter through the contact points
Solution Approach 1:
The patent replaces mechanical penetration or sealing mechanisms with magnetic field actuation. The magnetic field can penetrate the tube wall to actuate the contact member without creating openings or compromise the tube's integrity. This maintains the tube's barrier function while achieving effective flow control through magnetic actuation of the contact member.
Solution Approach 2:
The patent utilizes the tube wall as a flexible barrier that can be actuated by magnetic forces transmitted through it. The tube wall maintains its integrity as a protective shell while allowing magnetic field penetration for actuation. This approach preserves the protective function of the tube wall while enabling remote actuation of the contact member.
3Measurement precision
If mechanical actuators are positioned inside the case to directly act on the tube, then precise control is achieved, but the complexity of the device increases
Solution Approach 1:
The patent replaces complex internal mechanical actuation mechanisms with a simpler magnetic field-based system. The driving device positioned outside the case generates magnetic fields that penetrate the tube wall to actuate the contact member, eliminating the need for complex internal linkages, gears, or direct mechanical connections. This substitution reduces device complexity while maintaining control precision.
Solution Approach 2:
The patent extracts the actuation mechanism from the internal case structure and positions it externally. The driving device is placed outside the case, and its magnetic field acts through the tube wall to control the contact member. This extraction simplifies the internal case structure while maintaining effective flow control, reducing overall 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
Enables precise control of fluid flow rates while preventing contamination and maintaining the integrity of the fluid, even if the tube is compromised, by using a non-contact mechanism that adjusts the tube's inner diameter and prevents external substances from entering.
Implementation Method 1
a magnet is provided in the contact member, and the driving device moves the contact member by a magnetic force through the magnet
Data Source
AI summary
A valve including a case 3, a tube 1 disposed in the case 3, a hinge fulcrum 4 disposed in the case 3, a contact member 5 connected to the hinge fulcrum 4 and capable of coming into contact with the tube 1, and a driving device 10 configured to apply a non-contact force to the contact member 5 from outside of the case 3 and change a contact force that is applied to the tube 1 by the contact member 5 to change an inner diameter of the tube 1.