PNEUMOHYDRAULIC PUMPING STATION

摘要

PNEUMOHYDRAULIC PUMPING STATION The pneumohydraulic pumping station comprises a pneumohydraulic double-action intensifier (2) whose pneumatic chambers 3 and 4 are communicated with the outlets of a pneumatic power directional control valve (7). The hydraulic chambers of the pneumohydraulic double-action intensifier (2) are communicated via pressure and the exhaust lines (14, 15 with an actuating hydraulic motor (1). The pneumohydraulic pumping station includes a pneumatic accumulator (22) connected to a pressure line (14). The pneumohydraulic doubleaction intensifier (2) has pneumatic limit switches (26, 27). The pneumohydraulic pumping station has a pneumohydraulic unidirectional intensifier (30) with a pneumatic limit switch (33). Pneumatic chambers (30a, 30b) of the pneumohydraulic unidirectional intensifier (30) are communicated with the outlets of a four-way two-position control directional valve 34. The pneumohydraulic pumping station provides for the continuous operating mode of the actuating hydraulic motor (1). Fig.