ACOUSTIC RADIATOR Russian patent published in 1998 - IPC

FIELD: devices intended for high-power electroacoustic action on oil-bearing bed of oil wells. SUBSTANCE: acoustic radiator has vibrators and intermediate bushings located on a shaft, whose one end is coupled to a head, flexible casing filled with contact liquid, hermetically sealed current lead, contact device installed in the head, connecting the cable to one end of the vibrators; it is furnished with a core and electric winding located on it and connected through one end to the vibrators, and through the other - to the metal surface of the acoustic radiator; the core fastened to the other end of the shaft has ducts, which communicate with the environment above and below the location of the electric winding. EFFECT: enhanced efficiency. 5 cl, 2 dwg