Sealing Device Noise Reduction and Installation
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Solution Overview
Problem
Conventional sealing devices for intake pipes fail to effectively suppress unusual noise caused by resonance between gas flow and pipe, while also compromising installation workability and gasket posture stability.
Innovation Solution
A sealing device with a gasket portion and an intake noise reduction portion, featuring a tubular portion fitted into the pipe's inner surface, an elastically deforming portion for stability, and a flow-guiding net portion that adjusts position to optimize noise reduction, eliminating the need for mounting grooves and enhancing installation ease.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a flow-guiding net is provided to a gasket to reduce intake noise, then intake noise is reduced, but installation workability deteriorates and gasket posture stability is compromised
Solution Approach 1:
The invention merges the gasket and the flow-guiding net into a single integrated sealing device. The gasket portion and the noise reduction portion (containing the flow-guiding net) are formed as one unified structure, eliminating the need for separate installation steps and improving installation workability while maintaining both sealing and noise reduction functions
Solution Approach 2:
The sealing device performs multiple functions simultaneously: it provides sealing through the gasket portion and noise reduction through the flow-guiding net portion. This multi-functional design eliminates the need for separate components, thereby improving installation ease while achieving both sealing and noise reduction objectives
2Object-affected harmful factors
If a flow-guiding net is provided to a gasket to reduce intake noise, then intake noise is reduced, but gasket posture stability deteriorates
Solution Approach 1:
The sealing device is segmented into distinct functional portions: a gasket portion for sealing and a noise reduction portion containing the flow-guiding net. This segmentation allows each portion to be optimized for its specific function while maintaining overall structural stability through their integrated connection
Solution Approach 2:
By merging the gasket and flow-guiding net into a unified structure with defined portions, the invention ensures that the flow-guiding net does not interfere with the gasket's sealing function or posture stability, as each portion is structurally supported by the other
3Device complexity
If a mounting groove is not provided for the gasket, then the structure is simpler, but gasket posture becomes unstable
Solution Approach 1:
The invention combines the gasket and flow-guiding net into a single integrated structure where the noise reduction portion provides structural support to the gasket portion, eliminating the need for separate mounting grooves while maintaining gasket posture stability
Solution Approach 2:
The integrated structure serves multiple purposes: the gasket portion provides sealing, the flow-guiding net portion reduces noise, and the combined structure itself provides mutual structural support, replacing the need for separate mounting features
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 effectively reduces intake noise by guiding gas flow and suppressing resonance-induced noise, improves installation workability, and maintains gasket posture stability, ensuring efficient sealing and noise reduction.
Implementation Method 1
an elastically deforming portion which is provided on an outer circumferential surface of the tubular portion, and is in close contact with an inner circumferential surface of either one of the one pipe and the other pipe thereby supporting the tubular portion in its positioned state within the pipe by elastic repulsive force
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Provided is a sealing device that is capable of not only suppress the generation of unusual noise by guiding a gas flow but also suppressing the generation of unusual noise caused by resonance between the gas flow and a pipe, and that is superior in installation workability and ability to maintain posture of a gasket portion. An intake noise reduction portion (20) is characterized by including a flow-guiding net portion (21) for guiding a gas flowing in an intake pipe, an annular frame body portion (22) for supporting the flow-guiding net portion (21), a cylindrical portion (23) that extends from the frame body portion (22) in a direction in which the pipe extends, and is fitted into an inner circumferential surface of a second pipe (220) and a flange portion (24) that extends from an end portion of the cylindrical portion (23) toward an outer circumferential surface side, and is disposed in a space between an end surface of a first pipe (210) and an end surface of the second pipe (220). A gasket portion (10) is provided on both surfaces of the flange portion (24).