Magnetic Fluid Valve Opening via Pressure-Responsive Holding Element
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Solution Overview
Problem
Existing fluid valves lack abrupt and reproducible opening and closing behaviors, especially in response to overpressure, which affects their stability and efficiency.
Innovation Solution
A valve design featuring a valve body and holding element with differential surface areas and magnetic interaction, where the holding element is more strongly or earlier affected by fluid pressure than the valve body, allowing for controlled and abrupt opening and closing based on variable limit values and force transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a permanent magnet is used to transfer the valve body to a rest position, then the valve closing is rapid and reliable, but the opening behavior is not abrupt enough and the response is not reproducible
Solution Approach 1:
The valve system is segmented into two functional components: a permanent magnet for reliable closing and a holding element with fluid-dependent holding force for abrupt opening. This segmentation allows each component to optimize its specific function without compromising the other.
Solution Approach 2:
The holding element acts as an intermediary between the fluid pressure and the valve body. It translates fluid pressure changes into holding force variations, which then control the valve body movement, enabling abrupt and reproducible opening behavior.
2Speed
If the holding element has a larger effective surface area than the valve body, then the holding force decreases more strongly and earlier in response to fluid pressure, but the valve body requires higher force to move
Solution Approach 1:
Different effective surface areas are assigned to different components based on their local functional requirements. The holding element has a larger effective surface to detect pressure changes early, while the valve body has a smaller effective surface requiring higher force for movement, ensuring controlled opening sequence.
3Ease of operation
If the limit value for the holding element is lower than the limit value for the valve body, then the holding force decreases before the valve body moves, enabling abrupt opening, but the system becomes more sensitive to pressure variations
Solution Approach 1:
The holding element performs a preliminary action by decreasing its holding force before the valve body actually moves. This preliminary weakening of the holding force prepares the system for abrupt opening, ensuring the valve body moves suddenly when the pressure threshold is reached.
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 rapid and stable valve operation with reproducible response to overpressure, ensuring efficient fluid passage management through controlled opening and closing mechanisms.
Implementation Method 1
a permanent magnet transfers a valve body to a rest position, in which a fluid passage is closed
Data Source
AI summary
Example embodiments disclose a valve seat that encloses a fluid passage for passage of a fluid from a fluid chamber, and a holding element that exerts a holding force on a valve body, the holding force acting in a direction towards a valve seat. In the event that the fluid acts on an effective surface of the valve body with a force or a pressure above a limit value, the valve body moves away from the valve seat. In the event that the fluid acts on an effective surface of the holding element with a force or a pressure above a limit value, the holding force acting on the valve body decreases. In doing so, the fluid acts on the holding element more strongly and/or earlier than on the valve body.