Kammprofile Gasket With C-Ring End for Flange Deflection Sealing
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Solution Overview
Problem
Gaskets face challenges in maintaining sealing performance under varying conditions, particularly at high temperatures and pressures, due to flange flatness issues and turbulence caused by fluid flow, which existing designs fail to adequately address.
Innovation Solution
A gasket design featuring a kammprofile with a C-ring end, sawteeth on upper and lower surfaces, a core spring accommodated within the C-ring, and an eyelet to cover the C-ring end, along with an outer ring and stoppers, which enhances bolting force, restoring force, and sealing efficiency while reducing turbulence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a conventional gasket design is used, then the structure is simple, but the restoring force is insufficient to maintain sealing under flange deflection
Solution Approach 1:
The C-ring end is formed by bending the gasket material itself, creating a nested structure where the C-ring is integrated within the gasket body. This nested design provides enhanced restoring force through the elastic deformation of the C-ring while maintaining a compact, integrated structure without requiring separate external components.
Solution Approach 2:
The C-ring end introduces dynamic elasticity to the gasket structure. The C-ring can elastically deform and recover, providing a dynamic restoring force that adapts to flange deflection and maintains sealing pressure. This dynamic characteristic allows the gasket to actively compensate for flange flatness variation during operation.
2Object-affected harmful factors
If the C-ring end is left open, then the structure is simpler, but turbulence occurs when fluid flows through the pipe
Solution Approach 1:
The opening in the C-ring end is welded closed, extracting the harmful open structure and replacing it with a sealed configuration. This welding process eliminates the turbulence-causing opening while maintaining the beneficial C-ring elastic structure, effectively removing the harmful element without compromising the overall gasket design.
3Reliability
If the gasket allows excessive compression, then installation is easier, but the sealing state becomes suboptimal
Solution Approach 1:
The stopper is pre-formed on the gasket surface at the appropriate location before installation. This preliminary structuring provides a built-in mechanical limit that prevents over-compression during the bolting process. The stopper acts as a pre-established barrier that guides the compression process and maintains optimal sealing pressure without requiring complex installation procedures.
4Strength
If the bolt load is not concentrated, then the pressure distribution is more uniform, but the sealing force at critical points is insufficient
Solution Approach 1:
The sawtooth structure creates localized high-stress concentration zones at the peaks of the teeth. This local quality variation ensures that bolting force is concentrated at specific critical points where sealing pressure is most needed, rather than being uniformly distributed. The sawtooth geometry provides targeted stress concentration that enhances sealing effectiveness at key interfaces.
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 achieves improved sealing performance, higher bolting and restoring forces, reduced production costs, and increased lifespan by concentrating bolt load on sawtooth peaks and using a plate coil spring for even pressure dispersion, while maintaining an optimum sealing state and preventing excessive compression.
Implementation Method 1
a core spring configured to be accommodated in the C-ring end via an opening of the C-ring end
Implementation Method 2
The gasket may further include a core spring configured to be accommodated in the C-ring end via an opening of the C-ring end
Implementation Method 3
Sawteeth may be formed on an upper surface and a lower surface of the kammprofile
Implementation Method 4
an eyelet configured to cover the C-ring end to decrease turbulence caused by a fluid flowing through a pipe
Data Source
AI summary
Provided is a gasket, and more particularly, to a gasket including a C-ring end formed at at least one side of a kammprofile. According to the present invention, a higher bolting force and restoring force may be secured than those of other gaskets having the same size as the gasket. Furthermore, a core spring may be easily fixed and attached to the gasket through the C-ring end formed at the kammprofile without an external jacket. Accordingly, production costs may be decreased by simplifying the structure of the gasket as described above.