Compressor Gasket Non-Uniform Metal Layer Corrosion
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Solution Overview
Problem
Transport refrigeration systems face corrosion issues, particularly galvanic corrosion, when brass and aluminum flanges are bolted together, leading to leakage and reduced system efficiency.
Innovation Solution
A compressor gasket with a multilayer structure, featuring a metal core with non-uniform thickness between outer layers, deflects compression loads and prevents corrosion by distributing pressure evenly, thereby sealing the flange interface effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a brass flange is bolted directly to an aluminum flange, then the connection is simple and direct, but galvanic corrosion occurs between the dissimilar metals
Solution Approach 1:
The gasket acts as an intermediary component between the brass and aluminum flanges. By positioning the gasket in the compression path between the dissimilar metal flanges, it electrically isolates the two metals, preventing galvanic corrosion while maintaining the simplicity of the bolted connection structure.
Solution Approach 2:
The gasket employs a composite structure with a non-uniform metal layer sandwiched between outer layers. This composite design provides both corrosion protection through electrical isolation and proper load distribution through the varying metal thickness, resolving the contradiction between connection simplicity and corrosion resistance.
2Device complexity
If compression load is concentrated at the flange interface, then the gasket structure is simple, but leakage occurs due to insufficient sealing pressure distribution
Solution Approach 1:
The gasket features a non-uniform metal layer with varying thickness across different regions. This local variation in metal distribution allows the gasket to concentrate compression loads where needed for sealing while providing adequate pressure distribution across the flange interface, achieving reliable sealing without excessive structural complexity.
Solution Approach 2:
The gasket design changes the physical parameter of metal thickness from uniform to non-uniform. This parameter change enables the gasket to deflect and distribute compression loads appropriately across the flange interface, improving sealing performance while maintaining a relatively simple overall structure.
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 gasket effectively prevents corrosion and leakage by distributing compression loads and ensuring a secure seal between brass and aluminum flanges, enhancing the reliability and efficiency of transport refrigeration systems.
Implementation Method 1
the second layer can be a metal with a non-uniform thickness that extends across the flange and the body to deflect compression load distribution
Implementation Method 2
the gasket can prevent corrosion at a compressor flange sealing service. In particular, the gasket can prevent galvanic corrosion when a brass flange is bolted directly to an aluminum flange
Data Source
AI summary
A gasket in a transport refrigeration system (TRS) and method of preventing corrosion in a compressor using a gasket. The gasket includes a body, where the body includes a fluid pass portion, and a flange that extends from the body. The body and the flange include a second layer between an outside first layer and a third layer. The second layer is a metal and the metal is a non-uniform thickness that extends across the flange and the body to deflect compression load distribution.