Seal Carrier Ring With Projecting Washer Part
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Solution Overview
Problem
Existing seals face challenges in maintaining a rigid and wedged mounting without additional securing means, ensuring static sealing between a circular structure and an aperture, while accommodating dimensional variations due to temperature changes, and preventing the detachment of the sealing washer during radial stress.
Innovation Solution
A seal design featuring a carrier ring with a high yield strength metallic sheet and a sealing washer that protrudes beyond the axial leg, forming a projecting part for secure attachment via material bonding, which reduces the risk of detachment and facilitates mounting by centering and guiding the seal, and includes a repelling structure for dynamic sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a seal is mounted in a wedged manner in an aperture without additional securing means, then the mounting simplicity is improved, but the reliability of preventing sealing washer detachment under radial stress deteriorates
Solution Approach 1:
The sealing washer is designed to protrude beyond the axial leg in the axial dimension, creating a projecting part that engages with the aperture wall. This dimensional extension transforms the mounting mechanism from relying solely on radial compression to incorporating axial engagement, thereby preventing detachment while maintaining mounting simplicity
Solution Approach 2:
The sealing washer has non-uniform thickness with a thicker projecting part at the axial extremity and a thinner sealing part at the radial extremity. This local quality differentiation allows the projecting part to provide mechanical anchoring in the aperture while the thinner sealing part maintains contact with the seal housing, simultaneously achieving secure attachment and effective sealing
2Stability of the object's composition
If the seal structure is made rigid for stable mounting, then the mounting stability is improved, but the adaptability to dimensional variations due to temperature changes deteriorates
Solution Approach 1:
The carrier ring is constructed from a metallic sheet with high yield strength, providing a flexible yet stable structure. This flexible shell can elastically deform to accommodate thermal expansion and contraction of the aperture while maintaining stable mounting through its high yield strength, resolving the contradiction between rigidity and thermal adaptability
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 reliable static and dynamic sealing, maintains sealing integrity during dimensional variations, and simplifies the mounting process by preventing washer detachment and enhancing the seal's positioning and adhesion to the aperture.
Implementation Method 1
the carrier ring comprises a high yield strength (HYS) sheet
Implementation Method 2
forming a projecting part for secure attachment via material bonding
Data Source
AI summary
A seal with, on the one hand, a support body in the form of a carrier ring with an axial leg and, on the other hand, a sealing washer which is placed or arranged on the carrier ring and which surrounds the axial leg on the outer periphery, said carrier ring being made of a metallic material, wherein the carrier ring is made of a sheet of the HYS type.