ROTARY HYDRAULIC MOTOR Russian patent published in 2001 - IPC

FIELD: turning actuating members of machines. SUBSTANCE: hydraulic motor has housing with liquid supply and discharge passages; housing is made in form of cylinder with end shields and separating plates in form of twin sector blades with bearing rods mounted in their joints for taking up clearances in axial direction; motor has rotor with hydraulically pressed plates made in form of twin sector blades. Mounted in holes of bearing rods are pins for taking up clearances in radial direction; cavities of blind seats of blade rods are communicated with high-pressure zones by means of holes; outer surfaces of rotor blades are provided with relief grooves. EFFECT: enhanced reliability and efficiency. 2 dwg