Gasket Mounting Structure That Prevents Fluid Channel Narrowing
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Solution Overview
Problem
Conventional gasket-mounting structures risk deforming the annular protrusion of a fluid device towards the fluid channel, leading to pressure loss and stagnation due to the tapered face of the gasket pressing the protrusion radially inward.
Innovation Solution
A gasket-mounting structure featuring a ring with a first annular slope and an inner sleeve with a second annular slope, where the outer periphery of the ring includes an annular contact face and a non-contact face, preventing the annular protrusion from being pressed radially inward by maintaining a separation between the contact and non-contact faces, thus preventing deformation of the protrusion towards the fluid channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the tapered face of the gasket presses the annular protrusion radially inward to form a seal, then sealing performance is improved, but the annular protrusion is deformed toward the fluid channel causing pressure loss and flow stagnation
Solution Approach 1:
The gasket's outer periphery is segmented into two distinct functional zones: an annular contact face that contacts the outer sleeve to prevent radial inward deformation, and an annular non-contact face that is radially separated from the outer sleeve to allow the tapered face sealing action. This segmentation allows simultaneous achievement of both sealing performance and prevention of pressure loss.
Solution Approach 2:
Different regions of the gasket's outer periphery are assigned different functional properties: the annular contact face provides structural support and prevents deformation, while the annular non-contact face enables the tapered sealing action. This local differentiation of functional quality resolves the contradiction between sealing and pressure loss prevention.
2Reliability
If the annular protrusion is pressed radially inward to ensure tight sealing, then sealing reliability is improved, but the fluid channel is narrowed causing flow stagnation
Solution Approach 1:
The gasket structure segments the outer periphery into contact and non-contact faces, allowing the non-contact face region to maintain fluid channel openness for smooth flow while the contact face region provides the necessary radial support for sealing reliability.
Solution Approach 2:
The annular contact face acts as an intermediary structural element that contacts the outer sleeve to provide radial support, preventing the protrusion from being pressed too far inward, thereby maintaining both sealing reliability and fluid flow smoothness.
3Reliability
If the gasket structure allows radial pressing for sealing, then sealing area is improved, but deformation of the annular protrusion occurs toward the fluid channel
Solution Approach 1:
The gasket outer periphery is divided into contact and non-contact faces, where the contact face provides radial support to maintain protrusion shape stability while the non-contact face allows sufficient pressing for sealing area formation.
Solution Approach 2:
The annular contact face provides a counterbalancing radial support force that opposes the radial inward pressing force, preventing excessive deformation of the annular protrusion while allowing sufficient contact for sealing.
Data Source
AI summary
A structure allowing a gasket to be mounted on a fluid device is provided. The gasket includes a ring with a first annular slope at a first axial end. The fluid device includes an inner sleeve with a second annular slope and an outer sleeve radially outside the inner sleeve. An outer periphery of the ring includes an annular contact face that contacts the outer sleeve and an annular non-contact face radially separated from the outer sleeve. The first annular slope contacts an outer periphery of the second slope.