ROTARY MOTOR Russian patent published in 2002 - IPC

FIELD: power engineering. SUBSTANCE: rotary motors are designed for use as hydraulic motors at deep-well drilling for driving drilling tools. Motor has rotor with straight-line blades parallel to rotor axis engaging with elastic working chamber installed over perimeter of housing parallel to blades and housing axis. Valves are installed at inlet and outlet of elastic working chambers. Valves, by means of spools and pressure springs, control flow of working agent through chambers and regulate pressure in chambers and torque on motor shaft. Motor has housing, shaft, rotor, stator consisting of branch pipe with shaped splines and elastic working chambers connected to splines. Shafts rotates in housing on bearings. Inlet and outlet valves are installed in housing on bushings. Spools rotate together with shaft. Closing planes and channels on spools are mechanically coupled with rotor blades and provided timely opening of inlet valves and closing of outlet valves of elastic working chambers. EFFECT: provision of high power and operation parameters. 3 cl, 3 dwg