Vibration Damping Device Liquid Injection via Vacuum Decompression
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Solution Overview
Problem
Existing methods for manufacturing vibration damping devices often result in air remaining inside the liquid chamber, particularly when high-viscosity liquids are sealed, which can lead to inefficiencies and incomplete sealing.
Innovation Solution
A method involving a decompression container and a nozzle to inject liquid into the chamber while discharging air through a dedicated air discharge port, ensuring the liquid is fully sealed by maintaining a vacuum state and utilizing a pressure difference to prevent air incorporation and facilitate complete sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If liquid is injected into the liquid chamber using conventional methods, then the liquid chamber can be filled with liquid, but air remains inside the liquid chamber causing incomplete sealing
Solution Approach 1:
The patent applies vacuum decomposition to create a low-pressure environment during liquid injection. By decompressing the container holding the vibration damping device main body, the liquid is injected in a vacuum or low-pressure state, preventing air from remaining in the liquid chamber and ensuring complete sealing without air pockets.
2Reliability
If high-viscosity liquid is sealed in the liquid chamber, then the damping performance is improved, but air tends to remain inside the liquid chamber making sealing difficult
Solution Approach 1:
The patent uses vacuum decomposition to create a low-pressure environment that facilitates the injection of high-viscosity liquid into the liquid chamber. The decompressed state reduces resistance to liquid flow and prevents air entrapment, making the sealing process easier while maintaining the use of high-viscosity liquid for optimal damping performance.
3Reliability
If more liquid is injected to ensure complete filling, then the liquid chamber can be fully sealed, but the total amount of liquid required increases
Solution Approach 1:
By injecting liquid in a decompressed or vacuum state, the patent ensures that liquid fills the liquid chamber completely and displaces all air without requiring excess liquid. The vacuum environment allows precise filling where liquid reaches all areas efficiently, reducing the total quantity needed while achieving complete sealing.
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
This approach effectively prevents air from remaining inside the liquid chamber, ensuring the liquid is fully sealed and reducing the total amount of liquid required, thereby enhancing the manufacturing process's efficiency and reliability.
Implementation Method 1
In a state where a nozzle spouting the liquid is thrust into the injection port and an inside of a decompression container having the vibration damping device main body disposed therein decompressed
Implementation Method 2
air inside the liquid chamber is discharged through an air discharge port which is formed in the vibration damping device main body and communicates with the liquid chamber
Data Source
AI summary
Provided is a method for manufacturing a vibration damping device including sealing liquid (L) in a liquid chamber (11) of a vibration damping device main body (10) having the liquid chamber (11) in which the liquid (L) is sealed, and an injection port (12) through which the liquid (L) is injected into the liquid chamber (11). In a state where a nozzle (22) spouting the liquid (L) is thrust into the injection port (12) and an inside of a decompression container (21) having the vibration damping device main body (10) disposed therein is decompressed, the liquid (L) is injected into the liquid chamber (11) through the nozzle (22), and air inside the liquid chamber (11) is discharged through an air discharge port (14) which is formed in the vibration damping device main body (10) and communicates with the liquid chamber (11).