Thermoactive Valve Seat Control for Precise Radiator Flow
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Solution Overview
Problem
Existing valves used in radiators and heat exchangers lack advanced functionality for temperature-induced flow control, as they rely solely on moving the valve element to adjust flow, leading to overcompensation by thermostatic actuators and reduced precision in maintaining the desired opening degree.
Innovation Solution
Incorporating a thermoactive member within the valve housing that allows the valve seat to be displaced relative to the housing parallel to the closing direction, enabling independent adjustment of the valve opening degree and providing additional control options, such as rotation, to counteract temperature-induced overcompensation by thermostatic actuators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the valve element is moved to adjust the flow, then the opening degree can be controlled, but the thermostatic actuator overcompensates for temperature increases leading to reduced precision
Solution Approach 1:
The valve system is segmented into two independently controllable components: the valve element (actuated by the thermostatic actuator) and the valve seat (displaceable by the thermoactive member). This segmentation allows the valve seat to provide temperature compensation while the valve element handles flow control, eliminating the overcompensation issue.
Solution Approach 2:
The valve seat acts as an intermediary element between the housing and the valve element. By making the valve seat displaceable via a thermoactive member, it mediates the temperature compensation function separately from the valve element's flow control function, preventing direct overcompensation.
2Adaptability or versatility
If the valve seat is fixed to the housing, then the structure is simple, but the functionality is limited and cannot provide independent control
Solution Approach 1:
The valve seat is transformed from a fixed component to a dynamically displaceable component. The displaceable valve seat can be moved parallel to the closing direction by a thermoactive member, enabling additional control functions such as complete valve closure and flow adjustment without requiring complex external mechanisms.
3Reliability
If the valve seat is made from material with large thermal expansion, then temperature compensation is improved, but the control precision may be affected
Solution Approach 1:
The temperature compensation function is segregated to the valve seat (which can use thermally expansive materials), while the opening degree control remains with the valve element. This segmentation allows each component to optimize its material properties without compromising the other function's precision.
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
This solution enhances the valve's functionality by allowing precise control of the opening degree and flow through the valve, reducing wear, and offering additional control mechanisms like complete closure or flow adjustment, while ensuring accurate temperature compensation and reduced overcompensation by thermostatic actuators.
Implementation Method 1
at least one thermoactive member is arranged inside the housing, wherein the at least one thermoactive member increases the maximum distance of the valve seat to the valve element when the temperature of the at least one thermoactive member increases
Data Source
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AI summary
The invention relates to a valve (1) comprising a valve housing (2), a valve seat (3) and a valve element (4). The valve element (4) is displaceable relative to the housing (2) in a closing direction towards the valve seat (3). The task of the invention is to provide a valve that has an improved functionality. To this end, the valve seat (3) is displaceable relative to the housing (2) parallel to the closing direction.