Patent ID: 7487858
Filing Date: 2009-02-10
Classification: F04F,G10K

Abstract:
1. An acoustic fluid machine comprising: an acoustic resonator; an actuator in a larger-diameter base end of the acoustic resonator to allow a piston to reciprocate at very small amplitude axially at high speed; a valve device at a top end of the acoustic resonator to suck fluid and discharge it from the acoustic resonator according to pressure fluctuation in the acoustic resonator involved by reciprocating motion of the piston; a gas guide that covers the acoustic resonator with a space and opens at a base end; a fan at a top end of the gas guide to forward fluid to cool the valve device to reduce temperature gradient between a base and a top end of the acoustic resonator; and a compressed-air-actuating turbine that drives the fan by forwarding the fluid discharged from the acoustic resonator via the valve device.