Gasket Thermal Conduction Region via Wire Weaving
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Solution Overview
Problem
Conventional gaskets with high thermal conductivity materials like copper or copper alloys excel in cooling efficiency but suffer from poor sealing properties, high manufacturing costs, and complex processes, and struggle to effectively cool small openings like water or oil holes.
Innovation Solution
A gasket formed by a metal wire woven fabric with an annular portion and a main body portion, where first metal wires are entangled to form a high thermal conduction region, and second metal wires with higher conductivity are woven into this region, simplifying the configuration and manufacturing process while maintaining sealing performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a gasket is formed of high thermal conductivity material such as copper or copper alloy, then cooling efficiency is improved, but sealing property deteriorates and manufacturing cost increases
Solution Approach 1:
The gasket employs different materials for different regions: the base layer uses stainless steel for sealing, while the thermal conduction region uses high thermal conductivity material (copper or copper alloy) for cooling. This local differentiation allows each region to optimize its function without compromising the other.
Solution Approach 2:
The gasket is constructed as a composite structure with a stainless steel base layer and a thermal conduction region made of copper or copper alloy. This composite material approach combines the sealing advantages of stainless steel with the thermal conductivity advantages of copper, resolving the contradiction between sealing property and cooling efficiency.
2Temperature
If a metal plate surrounding combustion chamber hole is used to improve cooling, then cooling efficiency is improved, but device complexity increases due to multiple components
Solution Approach 1:
The thermal conduction region is integrated directly into the gasket body as an inherent part of the gasket structure, rather than being a separate metal plate component. This merging eliminates the need for additional components and simplifies the overall device structure while maintaining cooling functionality.
Solution Approach 2:
The gasket serves multiple functions simultaneously: the stainless steel base layer provides sealing, while the integrated thermal conduction region provides cooling. This multi-functionality eliminates the need for separate cooling components, reducing device complexity.
3Temperature
If a metal plate structure is used for cooling, then cooling of combustion chamber is improved, but adaptability to small holes such as water hole or oil hole deteriorates
Solution Approach 1:
The thermal conduction region can be locally positioned around any opening (combustion chamber, water hole, or oil hole) depending on the cooling requirements. This localized approach allows the gasket to adapt to different hole sizes and positions while maintaining effective cooling.
Solution Approach 2:
The gasket design with an integrable thermal conduction region can be universally applied to various types of openings including combustion chambers, water holes, and oil holes. The same basic structure adapts to different applications, enhancing versatility.
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 design enhances cooling efficiency with a simpler configuration, reduces the number of components, and allows for high thermal conduction region formation at arbitrary positions, improving sealing and cooling performance compared to conventional metal plate gaskets.
Implementation Method 1
a second metal wire having thermal conductivity higher than that of the first metal wire is woven to the thermal conduction region together with the first metal wire
Data Source
AI summary
An object of the present invention is to provide a gasket capable of improving cooling efficiency with a simpler configuration while keeping performance of the gasket and a manufacturing method thereof. A gasket includes a first annular portion which is formed by a metal wire woven fabric obtained by weaving a first metal wire and includes a seal target hole and a main body portion which is in contact with an outer peripheral edge of the first annular portion, in which the first metal wire forming the first annular portion and the first metal wire forming the main body portion are entangled with each other and a second metal wire is woven together with the first metal wire forming the first annular portion to form the first annular portion as a high thermal conduction region.