| 摘要 |
PURPOSE:To realize speedy, labor-saving measurement and to improve its safety by providing the 1st remotely operable valve which is fitted to the end of a passage communicating with the combustion chamber of every cylinder a check valve which is connected to its exit side and flows gas only from the combustion room, the 2nd remotely operable valve which is connected to its exit side and open to the air at one side, a pressure transducer which outputs the pressure of combustion gas as an electric signal, and a controller which operates the remotely operable valves. CONSTITUTION:The combustion gas flows through the 1st valve 3, check valve 4, pipings 5 and 6, and the 2nd valve 8 to discharge the sludge in the passages of the respective valves and the pipings, cleaning up them. Then, a closure signal is outputted from the D/O of a controller to the 2nd solenoid valve 15 to send compressed air from an air pressure source to the air chamber 64 of the 2nd valve 8, and a piston 66 is lowered to sit a valve body 63a on a valve seat 62, enclosing the combustion gas. When the pressure of the combustion gas rises above the total pressure of the valve opening pressure and secondary-side pressure of the check valve 4, the valve 42 is opened to apply the pressure into the pipings 5 and 6, and when the pressure is below the total pressure, the valve 42 is closed, thereby holding maximum pressure in the pipings 5 and 6. |
