PISTON PUMP HYDRAULIC DISTRIBUTOR Russian patent published in 2001 - IPC

FIELD: hydraulic systems. SUBSTANCE: hydraulic distributor is designed for use in hydraulic systems with two-side power hydraulic cylinders operating at high pressures. Hydraulic distributor has housing with valve units installed in parallel in hydraulic distributor housing. Each unit consists of screw pusher coupled with the other through gear train. Opposite shutoff members are arranged coaxially to valve units. Shutoff member is arranged at side opposite to screw pusher and is spring-loaded. Channel is found between shutoff members of each valve unit. It accommodates freely floating pusher. Channels are interconnected along shutoff member line for alternate connection through action of pushers and pump and for connection of one of valve units with piston space, and other unit, with rod space. EFFECT: improved reliability of operation, convenience in service, increased capacity of power hydraulic cylinder. 5 dwg