Acoustic fluid machine

Abstract

The invention is a sound fluid machine. It has a sound resonator and a piston reciprocating by actuator at the bottom of the sound resonator. A valve device is arranged at the top end of the sound resonator, and external air enters in the sound resonator through the valve device. The piston has a through hole that communicates with front space and back space of the piston, thus reducing the load applied on the piston.

Description

technical field [0001] The present invention relates to an acoustic fluid machine based on acoustic resonance in an acoustic resonator. Background technique [0002] An acoustic fluid machine is known in which the piston reciprocates axially at high speed with small amplitudes in the bottom of the acoustic resonator with a large radius, thereby drawing gas into the acoustic resonator at the upper end and utilizing pressure changes in the acoustic resonator Drain it. [0003] By using the resonance of the small-amplitude reciprocating piston in the axial direction, the amplitude pressure change of the acoustic standing wave is generated, so as to use the acoustic fluid machine to make the piston at the bottom of the acoustic resonator perform high-speed reciprocating motion through the actuator. [0004] The acoustic fluid machine has a simple structure and is not easy to break down. This acoustic fluid machine is expected to be widely used in the future. [0005] However,...

AI Technical Summary

Problems solved by technology

[0005] However, in this acoustofluid machine, air is sucked and exhausted only by a piston that vibrates slightly, so there is a basic problem that the obtained compression ratio and flow rate are small

But if the piston is lightened, the strength will be worse, and if the output of the actuator is increased, it will increase the cost of manufacturing the actuator

Images