Fluid Dispensing Device With Single Membrane Valve
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Solution Overview
Problem
Existing fluid dispensing pumps are complex to produce, prone to malfunction, and have a suction/compression chamber that reduces the container's volume and is limited by the container's neck size, requiring multiple valve components and sensitive movable parts.
Innovation Solution
A dispensing device with a single membrane acting as both suction and dispensing valve, allowing fluid communication between the suction and dispenser ducts, positioned outside the container to avoid volume reduction and design limitations, featuring a simplified structure with reduced components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate valve components are used to control fluid flow, then the suction and dispensing functions can be achieved, but the device complexity increases and reliability decreases due to more sensitive movable parts
Solution Approach 1:
The patent combines two separate valve components into a single integrated valve assembly. The first valve element controls the suction duct while the second valve element controls the dispensing duct, both operating from a unified structure rather than separate components, thereby reducing complexity and improving reliability
Solution Approach 2:
The single integrated valve assembly performs multiple functions simultaneously - controlling both suction and dispensing fluid flow paths through a unified structure, eliminating the need for separate valve mechanisms and reducing the number of sensitive movable parts
2Volume of moving object
If the suction/compression chamber is positioned inside the container, then the device structure is compact, but the container's useful volume is reduced and the chamber dimensions are limited by the container neck size
Solution Approach 1:
The suction/compression chamber is extracted from the container interior and repositioned to the exterior. This allows the chamber to achieve larger dimensions without being constrained by the container neck opening, while the container's internal volume remains fully available for fluid storage
3Productivity
If the suction/compression chamber dimensions are increased to improve pumping capacity, then the fluid dispensing efficiency increases, but the chamber cannot be made larger when positioned inside the container due to neck size limitations
Solution Approach 1:
By extracting the suction/compression chamber from the container interior and positioning it externally, the chamber dimensions are no longer constrained by the container neck size, allowing for larger pumping capacity and improved fluid dispensing efficiency
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 device ensures reliable operation with minimized malfunctions, increased container volume, and flexibility in design, as the membrane's translation controls fluid flow without the need for multiple sensitive valves, allowing larger suction/compression chamber dimensions.
Implementation Method 1
a membrane (500) which is slidingly coupled with the walls of the suction/compression chamber (300), in such a way that it can be translated in a direction parallel to the translation direction of the actuator element (400). Both the suction valve (260) and the dispensing valve (460) comprise the membrane (500)
Data Source
AI summary
The invention is a fluid dispensing device suited to be connected, by means of a connection element (220), to a container (C) holding the fluid that can be dispensed from the inside to the outside of the container through an actuator element (400), comprising: a suction duct (240) suited to communicate with the fluid held inside the container (C), a dispenser duct (440) in communication with the outer space with respect to the volume (V) enclosed by the container (C), a suction/compression chamber (300) that can communicate with the suction duct (240) and the dispenser duct (440), a suction valve (260) suited to alternatively allow and prevent the passage of a fluid between the suction duct (240) and the suction/compression chamber (300) when, respectively, the suction valve is closed and open, a dispensing valve (460) suited to alternatively allow and prevent the passage of a fluid between the dispenser duct (440) and the suction/compression chamber (300) when, respectively, the suction valve is closed and open, a tight membrane (500) slidingly coupled with the walls of the suction/compression chamber (300) so that it can be translated in a predetermined direction; both the suction valve (260) and the dispensing valve (460) comprise the membrane (500). The invention concerns also a system for containing and dispensing fluids (F).