GERATOR HYDRAULIC MOTOR Russian patent published in 2001 - IPC

FIELD: drilling of directional wells by hydraulic motor. SUBSTANCE: working fluid is supplied to spindle rotation bearings to screw channels of flexible plane bearing, throttled and mixed-in to flow of working fluid in adapter channels to provide for cooling of rotation bearings and damping of stresses from bending moment and torques transmitted from roller planetary motion over starter via drive shaft from sections and couplings and also reactive bending moment produced by bit cutting force. EFFECT: higher accuracy of well path and operating reliability of hydraulic motor. 2 cl, 6 dwg