Fluid Dispenser Axial Jet Injection Design
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Solution Overview
Problem
Existing fluid dispensers with coaxial components and thick dip tubes compromise attractiveness and fluid retention due to the presence of multiple elements and thick wall thickness, which degrades the transparent appearance and capillary retention capability.
Innovation Solution
A fluid dispenser with a constant-volume extraction and application space filled by an axial jet of fluid under pressure through an injection orifice positioned outside or just inside the space, eliminating the need for coaxial elements and enhancing stiffness and transparency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the dip tube extension is made with relatively thick wall thickness to impart stiffness, then the structural strength is improved, but the transparency and attractiveness of the dispenser is degraded
Solution Approach 1:
The invention removes the dip tube extension from the extraction zone, eliminating the visual obstruction and transparency issues while maintaining functional fluid transfer through alternative design arrangements
2Reliability
If the dip tube extension diameter is increased to provide structural support, then the reliability is improved, but the fluid retention capacity by capillarity is degraded
Solution Approach 1:
The dip tube extension is removed from the extraction zone, preserving the capillary action and fluid retention properties by eliminating the large-diameter obstruction that disrupted the capillary network
Solution Approach 2:
The fluid transfer function is separated from the structural support function, allowing the extraction zone to be optimized for capillary fluid retention while structural needs are met by other components
3Reliability
If multiple coaxial elements are arranged in the extraction zone to achieve functional requirements, then the operational reliability is improved, but the visual attractiveness and transparency are degraded
Solution Approach 1:
The invention eliminates the multiplicity of coaxial elements from the extraction zone, removing visual obstructions while maintaining operational reliability through alternative functional arrangements
Solution Approach 2:
The design transitions from a coaxial multi-element arrangement to a configuration where fluid transfer occurs without requiring multiple concentric components in the extraction zone, achieving both transparency and functionality
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 dispenser maintains an attractive appearance and improved fluid retention by filling the extraction space with fluid and air only, increasing stiffness and transparency, while the user experiences a mysterious and appealing filling mechanism.
Implementation Method 1
suction means for sucking, during a suction stage, fluid from the reservoir into the chamber through the injection orifice
Implementation Method 2
the fluid is injected in the form of an axial jet into the extraction and application space and fills it, at least in part
Implementation Method 3
a dip tube that connects the reservoir to the chamber at an injection orifice
Data Source
AI summary
A fluid dispenser having a fluid reservoir, a fluid suction chamber of variable volume that defines an extraction and application space; a dip tube that connects the reservoir to the chamber at an injection orifice that defines an injection axis; and a suction mechanism for sucking, during a suction stage, fluid from the reservoir into the chamber through the injection orifice. The injection orifice is situated a little way inside or outside the extraction and application space, such that the fluid is injected in the form of an axial jet into the extraction and application space and fills it, at least in part, without the injection orifice penetrating into the space.