Interchangeable Cryogenic Dosing Arm with Bayonet Coupling
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Solution Overview
Problem
Prior art cryogenic fluid dosing systems with fixed dosing arms require multiple doser models for different arm lengths, increasing complexity and cost in accommodating various user applications and custom solutions.
Innovation Solution
A modular doser system featuring a doser body with a bayonet connection for interchangeable dosing arms, allowing for adjustable arm lengths and easy customization, with a vacuum-insulated design to maintain cryogenic fluid integrity and precision dispensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a fixed dosing arm is used in prior art dosers, then the doser structure is simplified, but multiple doser models are required to accommodate different arm lengths, increasing device complexity and manufacturing cost
Solution Approach 1:
The dosing arm is separated from the doser body as an interchangeable component. The doser body includes a connection interface (flange with bolt holes) that allows attachment of different dosing arm lengths. This segmentation enables a single doser body to accommodate multiple arm length configurations, eliminating the need for multiple doser models while maintaining manufacturing simplicity.
Solution Approach 2:
The dosing arm configuration is made changeable rather than fixed. The interchangeable design allows the dosing arm to be dynamically adjusted to different lengths based on application requirements. This dynamic adaptability is achieved through the connection interface that permits easy attachment and detachment of different arm configurations.
2Adaptability or versatility
If multiple doser models are created for different arm lengths, then various user applications are accommodated, but device complexity and development cost increase
Solution Approach 1:
A single doser body design with a standardized connection interface serves multiple functions by accommodating different dosing arm lengths. This universal interface (flange with multiple bolt hole patterns) allows one doser model to replace multiple specialized models, reducing device complexity while maintaining broad application coverage.
3Adaptability or versatility
If custom built solutions are developed for specific arm lengths, then user needs are precisely met, but development difficulty and cost increase
Solution Approach 1:
By separating the dosing arm from the doser body and standardizing the connection interface, custom arm length solutions can be created by simply manufacturing different arm lengths rather than developing entirely custom doser models. This segmentation dramatically reduces custom development cost and complexity while still meeting precise user needs.
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 modular doser system provides flexibility and cost-effectiveness by allowing quick changes in dosing arm lengths to suit various applications, reducing the need for multiple doser models and enabling precise dispensing of cryogenic fluids.
Implementation Method 1
The dosing arm includes vacuum-insulated piping so that liquid nitrogen is supplied from the cryogen source reservoir of the doser body to the dosing head
Implementation Method 2
A dosing arm sleeve is connected to the dosing arm outer jacket and inner pipe so that a sealed annular space is defined between them. The annular space is generally evacuated of air.
Implementation Method 3
A bayonet connection removably connects the proximal end of the dosing arm to the doser body
Data Source
AI summary
A doser for dispensing a cryogenic fluid includes a doser body configured to receive the cryogenic fluid. The dosing arm has a proximal end and a distal end and a central passage extending between the proximal and distal ends. Furthermore, the dosing arm is configured to receive cryogenic fluid from the doser body. A bayonet connection removably connects the proximal end of the dosing arm to the doser body. A dosing head is mounted to the distal end of the dosing arm and is configured to receive cryogenic fluid from the central passage of the dosing arm and to dispense the cryogenic fluid.