Air Compressor Vent Sleeve With Magnetic Fluid Noise Damping
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Solution Overview
Problem
Existing noise suppression methods for air compressors, particularly those with high-pressure ratios and high efficiency, are inadequate in reducing noise levels effectively.
Innovation Solution
A noise elimination and vibration damping device for air compressors utilizing an inner sleeve with a suspended end generating radial oscillation, filled noise elimination chambers with magnetic fluid, and mechanisms to control magnetic fluid flow and oscillation, combined with elastic hollow tubes for resonance and damping, to attenuate acoustic energy through radial and tangential oscillations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If superchargers are driven at high speed to achieve high pressure ratio and high efficiency, then fuel efficiency is improved and nitrogen oxides are reduced, but noise level increases
Solution Approach 1:
The device converts the harmful high-speed operation noise into a beneficial control mechanism by using the noise-induced oscillations to drive the magnetic fluid and elastic hollow tubes. The acoustic energy that would otherwise be wasted is transformed into useful tangential oscillations and resonance effects that actively attenuate noise across multiple frequencies
Solution Approach 2:
The invention employs mechanical vibration through the suspended end generating radial oscillation and the elastic hollow tubes producing resonance. These vibrations create tangential oscillations in the magnetic fluid that effectively attenuate acoustic energy, allowing the system to maintain high-speed operation while reducing noise levels
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 device significantly enhances noise attenuation by leveraging magnetic fluid oscillations and resonance, offering superior sound absorption performance compared to traditional methods.
Implementation Method 1
the suspended end of the inner sleeve is configured to generate radial oscillation, thereby attenuating acoustic energy of the sound
Implementation Method 2
drive the magnetic fluid in the multiple noise elimination regions to generate tangential oscillation, thereby attenuating the acoustic energy of a sound entering the noise elimination chamber
Implementation Method 3
drive a space at the tail part of the noise elimination chamber to generate fluctuations, to thereby drive the magnetic fluid in the noise elimination chamber to generate fluctuations in a thickness of the magnetic fluid. Since the magnetic fluid is incompressible, the fluctuations in the thickness of the magnetic fluid are converted into tangential oscillation
Implementation Method 4
The suspended end is configured to, under the radial oscillation generated by the suspended end, drive the elastic hollow tube to produce resonance
Implementation Method 5
When the sound flows through the through hole of the elastic hollow tube, the elastic hollow tube is configured to generate damping and dissipate vibration energy
Data Source
AI summary
A noise elimination and vibration damping device for an air compressor and an air compressor are provided. An air compressor vent is provided with an inner sleeve therein, a fixed end of the inner sleeve is connected to an inner wall surface of the air compressor vent, a suspended end of the inner sleeve is in a suspended state. A groove is defined on the air compressor vent. A space between the groove and the inner sleeve defines a noise elimination chamber, the noise elimination chamber is provided with multiple noise elimination regions arranged at intervals, and each of the multiple noise elimination regions is filled with magnetic fluid. A first-stage noise elimination structure is disposed on the inner sleeve. The suspended end can generate radial oscillation to drive the magnetic fluid to generate tangential oscillation, thereby attenuating an acoustic energy of a sound entering the noise elimination chamber.