Vehicular Brake Sealable Bonded Component Corrosion Resistance
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Solution Overview
Problem
Vehicular brake system components, such as accumulators, face issues with prolonged sealing performance due to excessive extension or contraction of diaphragms, which can lead to undue forces on seal members, compromising sealing efficiency and durability under pressure fluctuations and high temperatures.
Innovation Solution
A sealable bonded component is developed with a metal member and an elastic rubber member bonded using an adhesive layer, where the metal member has a protective film to prevent corrosion, and the adhesive layers are optimized for enhanced peel strength and chemical resistance, ensuring the component maintains sealing performance over time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the diaphragm is made highly elastic to cope with volume changes, then the flexibility and durability are improved, but the diaphragm may excessively extend or contract and press against the seal member, compromising sealing performance
Solution Approach 1:
The invention applies preliminary anti-action by providing a backup liquid in advance that prevents excessive extension or contraction of the diaphragm. When the diaphragm tends to over-extend or over-contract, the backup liquid exerts a counteracting force to limit the movement, thereby preventing undue force from acting on the seal member and maintaining sealing performance throughout the operational life of the component.
2Reliability
If the diaphragm is prevented from excessive extension by confining backup liquid, then the sealing performance is maintained, but the device complexity increases due to additional partition wall and circulation port
Solution Approach 1:
The invention applies universality by designing the partition wall to serve multiple functions: it separates the liquid chamber into a communication chamber and a backup liquid chamber, provides a circulation port for liquid flow, and acts as a structural support for the seal member. This multi-functional design achieves the goal of maintaining sealing performance while minimizing the increase in device complexity.
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 solution ensures prolonged sealing performance and durability of the brake system components by preventing corrosion and maintaining adhesive function, even under high pressure and temperature conditions, thus enhancing the overall reliability of the vehicular brake system.
Implementation Method 1
an adhesive layer provided on the metal member so as to correspond to at least a part of the surface of the metal member, and an elastic rubber member bonded to the metal member with the adhesive layer therebetween
Data Source
AI summary
A vehicular brake system component is used in a brake system of a vehicle. The brake system component includes a sealable bonded component having a metal member and an elastic rubber member bonded to each other and located so as to touch a brake fluid.