| 摘要 |
A flood control valve assembly for a submarine has a first chamber 4 with two compartments 6, 8 separated by a movable wall 10 and inlets 12, 14 communicating with the respective two compartments, and a second chamber with a fluid flow duct 18. A flood control element is formed by a valve body 20 and a fluid flow restrictor 22 connected to the movable wall 10, and defines a valve orifice (38, Fig. 2) between the valve body 20 and the fluid flow restrictor 22 in communication with the fluid flow duct 18. The transverse width of the valve orifice 38 is dependent on the relative position of the valve body 20 and fluid flow restrictor 22. The movable wall 10 is biased to urge the flood control element to increase the area of valve orifice 38. |
