| 摘要 |
PURPOSE:To permit a diver to safely dive and float, by providing a control valve for varying a ratio of air to water in a hull. CONSTITUTION:Air supply valves 30 are provided to independently supply and stop the air from an air bomb V1 mounted in a hull to respective ballast tanks 23. Air discharge valves 34 are provided to discharge the air supplied to the ballast tanks 23 into the hull. A water filling valve is provided at the ship's bottom, so as to supply and stop the water from the outside into the hull. A control valve 39 is provided at a dome portion 3, so as to adjust an amount of air discharged from the ballast tanks 23 into the hull. The control valve 39 is adjusted by a diver to elevate and lower the hull in the water. |
