LOW-FREQUENCY PISTON RADIATOR

FIELD: signalling and acoustic intensification of heat-and-mass exchange processes. SUBSTANCE: piston has not contact with tube walls and is directed in tube by means of antifriction bearings so that sliding friction is replaced by rolling friction. To prevent gas overflow through clearance between...

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Bibliographische Detailangaben
Hauptverfasser:	MIRONOV M.A, ISAEV N.S, BORISOV JU.JA
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR FOR PERFORMING MECHANICAL WORK IN GENERAL GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS SOUND-PRODUCING DEVICES TRANSPORTING
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Beschreibung
Zusammenfassung:	FIELD: signalling and acoustic intensification of heat-and-mass exchange processes. SUBSTANCE: piston has not contact with tube walls and is directed in tube by means of antifriction bearings so that sliding friction is replaced by rolling friction. To prevent gas overflow through clearance between tube walls and piston which balances pressure on both sides of piston and to avoid acoustic short circuit inhibiting the radiation, value of clearance must not exceed viscous wave length at piston oscillation frequency. In this case, gas viscosity in clearance and its inertia provide for required tightness of clearance. EFFECT: higher reliability in operation. 4 cl, 1 dwgg