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    • 4. 发明专利
    • Gas oscillatory wave generator
    • AU1799000A
    • 2000-07-31
    • AU1799000
    • 1999-12-24
    • KYOWA HAKKO KOGYO KKMATSUI MFG
    • YOSHIMOTO HIROKAZUMORIMOTO KIYOSHIIWASE YUJIMURATA KAZUE
    • B06B1/18F16K11/052F26B3/092F26B21/12G10K7/06B65G53/66
    • Pulsating vibration air generation means comprising a cylindrical casing having an air supply port connected with an air source and a wave transmission port provided at the circumferential surface thereof, and a drum type rotary valve constructed rotatably in the casing, wherein the air supply port is located where a circumferential surface of the rotary valve is positioned when the rotary valve is contained in the casing, the wave transmission port is located apart from where the circumferential surface of the rotary valve is positioned when the rotary valve is contained in the casing, the drum type rotary valve is comprised of a rotary support shaft at a center axis, one end of the rotary valve is opened, another end of the rotary valve is closed, at least one ventilation window is provided at the circumferential surface of the rotary valve, the rotary valve is contained in the casing in such a manner that the open end of the rotary valve faces to the wave transmission port of the casing, and the at least one ventilation window provided at the circumferential surface of the rotary valve is designed to intermittently meet the air supply port according to rotation of the valve when rotary drive means is connected with the rotary support shaft and the rotary drive means is driven.