| 摘要 |
PURPOSE:To prevent decrease of workload of the collected rotary machines with rotors during a fracture of a narrow pipe, which connects between a gas supplying pipe and an input/output portion of gas to the rotor, by inserting into the output portion of the gas supplying pipe an orifice for regulating pressure of the gas flowing through the narrow pipe. CONSTITUTION:Orifices OP and OW are inserted into the respective branching point between gas input/output portions of rotors G1-G3 and a gas supply pipes of narrow pipes LP and LW connecting gas supply pipes P and W within a chamber C. Each of the orifices OP and OW have a low conductance so that inflow to the chamber C and the pipes P and W can be minimized, even though any fracture may occur for the some reason in the narrow pipe within the structure of the collected machine. |
