Pump Valve Assembly With Curved Flow Path for Lower Pressure Loss
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Solution Overview
Problem
Existing piston or plunger positive displacement pumps experience unwanted pressure drops and turbulences due to the sharp bends in the fluid path through the regulating valve assembly, which affects the efficient dispensing of fluids.
Innovation Solution
A valve assembly design with a coupling sleeve having transverse passage ducts that connect the second chamber to the outlet duct, minimizing sudden direction changes and avoiding contact with the resilient element, thus reducing pressure losses and turbulences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the fluid path includes sharp bends through the first shutter body and spring housing seat, then the valve assembly can regulate delivery pressure, but unwanted pressure drops and turbulences occur
Solution Approach 1:
The patent replaces sharp bends with curved transitions in the passage ducts. The ducts connecting chambers are designed with smooth curved paths instead of angular bends, reducing flow separation and turbulence while maintaining pressure regulation functionality.
Solution Approach 2:
The valve assembly is divided into multiple chambers (first chamber, second chamber, third chamber) connected by dedicated passage ducts. This segmentation allows each chamber to perform specific functions while the passage ducts are optimized for smooth fluid transitions, separating the pressure regulation function from the fluid transport path.
2Device complexity
If the fluid flows through multiple sharp bends and contacts the spring housing seat, then the valve assembly structure is compact, but turbulences and pressure losses increase
Solution Approach 1:
The passage ducts are designed to extend in multiple spatial dimensions rather than following a planar path with sharp bends. The ducts utilize three-dimensional routing to achieve smooth transitions, allowing the fluid to flow through curved paths that reduce turbulence while maintaining a compact overall valve assembly structure.
Solution Approach 2:
The passage ducts act as intermediaries between chambers, providing optimized fluid pathways that mediate between the compact structural requirements and the need for smooth fluid flow. The ducts are specifically designed with curved geometries to reduce turbulence while connecting chambers in a space-efficient manner.
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 new valve assembly design reduces pressure drops and turbulences, enhancing the efficiency of fluid dispensing by providing a smoother fluid path and minimizing contact with the resilient element, thereby improving pump performance.
Implementation Method 1
a first resilient element adapted to push the first shutter body towards the closed position (in particular in contrast to the pressure present in the first chamber)
Implementation Method 2
This spring, in particular, is compressed between said coupling sleeve and the first shutter body itself
Implementation Method 3
a first shutter body housed in the second chamber and movable between a closed position, in which it closes the first valve seat, and an open position, in which it opens the first valve seat
Data Source
Figure 1
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AI summary
A valve assembly (35) for pumps (10) comprising a first chamber (45) adapted to be placed in fluid communication with an inlet duct (A); a second chamber (50) communicating with the first chamber via a valve seat (55), the second chamber being adapted to be placed in fluid communication with an outlet duct (B); a first shutter body (60) housed in the second chamber and movable between a closed and an open position; a first resilient element (65) adapted to push the first shutter body towards the closed position; a coupling sleeve (70) delimiting an internal cavity extending along a central axis (C) and adapted to place the second chamber in fluid communication with the outlet duct, said first resilient element being compressed between the coupling sleeve and the first shutter; wherein the coupling sleeve comprises at least one passage duct (105) passing through the sleeve in a transverse direction with respect to the central axis thereof and flowing into the internal cavity to place the second chamber in fluid communication with the outlet duct.