Fluid Module Sealing Assembly for Low-Temperature Leak Prevention
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Solution Overview
Problem
Existing fluid-conducting devices, such as those in vehicles, face leaks and contamination issues at low temperatures due to the deterioration of elastic sealing elements, which limits their application to areas without extreme cold.
Innovation Solution
The device features a base component with a support projection that is elastically prestressed onto the attachment, using a clamping mechanism to maintain a fluid-tight seal by compressing the sealing element and compensating for thermal shrinkage and material property changes at low temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an elastic sealing element is used to seal the fluid channel at normal temperatures, then optimal sealing performance is achieved, but the sealing function deteriorates dramatically at low temperatures below -40°C
Solution Approach 1:
The patent changes the physical state of the sealing element from a standard elastic material to a gel material with specific rheological properties. This parameter change allows the sealing element to maintain its sealing function at low temperatures by preventing relative movement between components through its gel structure, while still providing effective sealing at normal operating temperatures.
Solution Approach 2:
The patent uses a composite sealing element made of gel material that combines properties of elasticity and structural stability. This composite material maintains both the sealing capability at normal temperatures and the rigidity needed to prevent thermal shrinkage and relative movement at low temperatures, resolving the contradiction between sealing performance and low-temperature reliability.
2Stability of the object's composition
If the attachment is rigidly fixed to the base component, then structural stability is improved, but thermal shrinkage at low temperatures causes leaks
Solution Approach 1:
The patent employs a gel sealing element that acts as a flexible yet structurally stable component. This gel material can accommodate thermal shrinkage and dimensional changes at low temperatures without causing leaks, while maintaining the structural integrity of the assembly. The gel layer absorbs thermal stresses and prevents relative movement between the attachment and base component.
Solution Approach 2:
The patent changes the mechanical properties of the sealing interface by using gel material with specific viscoelastic parameters. This allows the sealing element to deform elastically under thermal stress while maintaining sealing pressure, resolving the contradiction between structural stability and sealing reliability at low temperatures.
3Reliability
If the sealing element is compressed to prevent leaks, then sealing performance is improved, but the material properties change significantly at low temperatures
Solution Approach 1:
The patent uses a gel composite material that maintains its mechanical properties across a wide temperature range. The gel structure provides both the compressibility needed for sealing and the structural stability required at low temperatures, preventing the deterioration of material properties that occurs with conventional elastic materials.
Solution Approach 2:
The patent selects gel material with specific rheological parameters that remain stable at low temperatures. This parameter selection ensures that the sealing element maintains its strength and elasticity even when compressed, preventing the significant material property changes that occur with conventional elastomers at temperatures below -40°C.
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
This solution ensures a reliable, fluid-tight seal at temperatures below -40°C and pressures up to 15 bar, preventing leaks and maintaining the sealing function even at low temperatures.
Implementation Method 1
the at least one support projection is compressed by elastic deformation
Implementation Method 2
these low temperatures lead to a certain thermal shrinkage of the sealing element
Implementation Method 3
the device according to the invention can prevent relative movement between the base component and the attachment through elastic recovery of the at least one support projection previously compressed by elastic deformation
Data Source
Figure 1~2
AI summary
The present invention relates to a device (1) comprising a base component (2) and an attachment component (6) for mounting on the base component (2). The attachment component (6) has at least one raised support projection (10) and, in an assembled state (12) of the device (1), is supported on the base component (2) by means of this at least one support projection (10). The attachment component (6) is clamped to the base component (2) by means of a clamping device (14) of the device (1) such that the at least one support projection (10) is compressed by elastic deformation. This allows a sealing element (11) of the device (1), arranged between the attachment component (6) and the base component (2) and used to seal a fluid channel system of the device (1), to maintain its sealing function even at low temperatures.The invention relates in particular to a fluid-carrying device with at least one such device (1) and further in particular to a device (21) of a vehicle, in particular an oil module or a fluid module, with at least one such device (1).