| 摘要 |
A buoyancy assembly suitable for supporting, either alone or in combination, a load deck or other marine body, said assembly comprising: i) a first portion 301,303 adapted to be connected to or form an integral part of the marine body, said portion incorporating a piston 313; ii) a second portion 310 adapted to envelope the piston 313 and thus create a variable volume chamber 302, the first and second portions being moveable with respect to each other; iii) sealing means 307 adapted for form a fluid tight seal between the piston 313 and the second portion; iv) a constant pressure source 351 adapted to maintain a constant pressure within the variable volume chamber 302; v) tether means 345 adapted to tether the second portion to the sea bed; wherein the buoyancy assembly is adapted such that displacement of the marine body from its hydrostatic equilibrium position results in the generation of a restoring force, upwards or downwards, tending to restore equilibrium. |
