PNEUMATIC MOTOR Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: gas distribution system has intake and exhaust branch pipes. Crank mechanism is mounted on taper ring welded to housing. Bottle is connected to intake branch pipe in which gas pressure-reducing valves and bypass valves are arranged in succession. Forward and reverse running valves are arranged in working chamber. Intake and exhaust valves are arranged for engagement with respective connecting rods of the mechanism and for regular communication of the chamber with bottle and atmosphere. Mechanism is kinematically linked with crankshaft through auxiliary connecting rod and end wall of chamber. Intake branch pipes are provided with bypass valves 9 and exhaust branch pipes are provided with shut-off valves controlled by power cylinders. EFFECT: enhanced efficiency. 4 dwg