Gasket with Sawteeth Embossed Sealing Layers
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Solution Overview
Problem
Conventional gaskets fail to provide effective leakage prevention, insulation under vacuum and high pressure conditions, and do not meet fire safety standards for the American Petroleum Institute (API) 6FB conditions.
Innovation Solution
A gasket design featuring a middle layer with through holes, multiple sealing layers, and sawteeth-like embossed surfaces on each layer, made from materials like rubber and graphite, which enhance sealing by varying ridge and valley depths to improve contact and prevent galvanic corrosion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional gasket structures are used, then the structure is simple, but leakage prevention effectiveness is insufficient
Solution Approach 1:
The gasket is divided into multiple functional layers including a base layer, sealing layers with sawteeth-like embossed surfaces, and insulation layers. Each layer performs a specific function: the base layer provides structural support, the sealing layers prevent leakage through interlocking sawteeth patterns, and the insulation layers maintain thermal barriers. This segmentation allows the complex multi-functional gasket to achieve superior leakage prevention while maintaining manufacturability through specialized construction of each layer.
2Reliability
If conventional sealing structures are used, then manufacturing is simple, but insulation under vacuum and high pressure conditions cannot be achieved
Solution Approach 1:
The gasket employs composite construction combining rubber or graphite sealing layers with insulation materials. The sealing layers made of rubber or graphite provide flexibility and sealing capability under vacuum and high pressure conditions, while the insulation layers provide thermal barrier properties. This composite material approach enables simultaneous achievement of insulation performance and sealing reliability under extreme conditions, with each material contributing its specific properties to the overall system performance.
3Reliability
If simple gasket designs are used, then manufacturing is easy, but fire safety standards (API 6FB) cannot be met
Solution Approach 1:
The gasket implements local quality enhancement through the sawteeth-like embossed surfaces on the sealing layers. These localized geometric features create interlocking mechanisms that enhance sealing pressure distribution and prevent fire-related leakage. The embossed patterns are strategically positioned at the sealing interfaces where fire safety is most critical, providing enhanced performance precisely where needed while keeping other portions of the gasket simpler for manufacturing purposes.
4Reliability
If uniform embossed surfaces are used, then manufacturing is simple, but sealing effectiveness is insufficient
Solution Approach 1:
The sawteeth-like embossed surfaces feature asymmetric geometry with specific ridge heights and valley depths that create directional interlocking patterns. The ridges and valleys are designed with non-uniform dimensions optimized for sealing pressure distribution, where the asymmetric shape enhances mechanical interlocking between mating surfaces. This asymmetric design improves sealing effectiveness by creating preferential contact zones while remaining manufacturable through standard embossing processes.
Data Source
AI summary
Provided is a gasket characterized in that a perfect sealing can be achieved even under the vacuum and the high pressure operating conditions due to the insulation material embedded between the metal cores, the insulation material adhered or attached to the metal cores, or the sealing material additionally provided.