TURBOVIBRATOR Russian patent published in 1996 - IPC

FIELD: well drilling equipment. SUBSTANCE: turbovibrator has relief valve including upper and lower pistons and screw throttle with attachment. Diameter of lower piston is larger than diameter of the upper piston. Mechanism generating vibrations is formed of hydraulic motor whose rotor and stator are made with continuous sectors for changing crossection of circulating channel during rotor rotation. In this case, radial axes of continuous sectors of rotors and sectors are located respectively in one longitudinal plane. EFFECT: higher efficiency of operation of turbovibrator due to generating the hydraulic impacts. 5 dwg