HYDRAULIC EMITTER Russian patent published in 1995 - IPC

FIELD: acoustics. SUBSTANCE: emitter has housing with internal gas space, flexible diaphragms, and pistons-emitters rigidly connected with the working pistons through rods. The emitter is provided with at least one hydraulic power box mounted inside the housing and rigidly secured to the housing. The box encloses the working pistons and rods of the pistons-emitters. The hydraulic power box is provided with transient passageways made between slide valves and pairs of plungers. Ones of the plunger faces abut against the working piston. EFFECT: enhanced longevity. 1 dwg