High-Pressure Feedthrough with Internal Pressure-Guiding Channel
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Solution Overview
Problem
Existing feedthroughs struggle to maintain a reliable fluid-tight connection and pressure stabilization at high pressures, especially when recesses in the main body material are unwanted or impossible, and they often require complex conductor routing and increased space requirements.
Innovation Solution
A feedthrough design featuring a pressure-guiding channel within the functional element that directs pressure components outward to the surrounding insulation material, enhancing the pressure resistance and allowing stabilization in the transverse direction, even when recesses in the main body are not feasible.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If pressure components are not guided outward to the insulation material, then the feedthrough structure remains simple, but the pressure resistance of the fluid-tight connection is insufficient at high pressures
Solution Approach 1:
The functional element is segmented to include an internal pressure-guiding channel that directs pressure components outward to the insulation material. This segmentation allows the pressure resistance function to be integrated within the functional element itself, elevating the pressure resistance of the fluid-tight connection without requiring complex external pressure compensation devices.
Solution Approach 2:
The pressure-guiding channel acts as an intermediary structure within the functional element, mediating the transmission of pressure components from the pressurized side to the insulation material. This intermediary channel enables controlled pressure distribution that stabilizes the feedthrough against pressure-induced deformations.
2Stability of the object's composition
If recesses are introduced into the main body material for pressure compensation, then pressure stabilization is improved, but the manufacturing complexity increases and recesses may be impossible for certain materials or geometries
Solution Approach 1:
The pressure-guiding channel is nested within the functional element itself, utilizing the existing functional element geometry to provide pressure compensation. This nested approach eliminates the need for separate recesses in the main body material, making the solution applicable to all materials and geometries without increasing manufacturing complexity.
Solution Approach 2:
The functional element serves multiple functions: it performs its primary function (e.g., electrical conduction, mechanical support) and simultaneously provides pressure compensation through its integrated pressure-guiding channel. This multi-functionality eliminates the need for additional pressure compensation structures in the main body.
3Volume of stationary object
If conventional feedthrough designs are used without pressure-guiding channels, then the conductor routing remains simple, but the space requirements increase and pressure resistance is insufficient
Solution Approach 1:
The pressure-guiding channel utilizes the longitudinal dimension of the functional element to guide pressure components outward to the insulation material. This dimensional approach allows pressure stabilization throughout the longitudinal direction of the functional element, achieving high pressure resistance within a compact volume without increasing space requirements.
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 design significantly increases pressure resistance by more than 10% to 100%, enabling reliable operation in high-pressure environments, such as deep-sea equipment and chemically polluted areas, with simplified conductor routing and reduced space requirements.
Implementation Method 1
pressure components that have arisen as a result of pressure are guided from within the at least one first functional element outward to the surrounding insulation material
Data Source
AI summary
A feedthrough includes: a main body having at least one passage opening that extends through the main body; at least one first functional element which is disposed within the at least one passage opening and is connected to the main body in a fluid-tight manner; and an insulation material that surrounds at least some regions of the at least one first functional element and establishes the fluid-tight connection to the main body. Within the at least one first functional element, there is a pressure-guiding channel by which pressure components that have arisen as a result of pressure are guided from within the at least one first functional element outward to the surrounding insulation material such that a pressure resistance of the fluid-tight connection of the at least one first functional element to the main body is elevated.