HYDRAULIC PERCUSSIVE-ACTION MECHANISM Russian patent published in 1998 - IPC

FIELD: road-building and construction machinery and equipment. SUBSTANCE: this can also be used in mining and metallurgical industries. Hydraulic percussive-action mechanism has body with passages for pressure, return, overflow, and cocking operations, striker with piston, bore, upper and lower rods, stepped-type valve with its larger step having radial holes and longitudinal slots allowing for provision of working stroke and striker cocking modes of operation, and valve switching. Hydraulic distributing component (valve) is of simplified design which adds to reliability of mechanism. EFFECT: higher efficiency. 1 cl, 3 dwg