| 摘要 |
<p>A system for producing energy includes expandable vessels (100) that are submerged in a liquid. The vessels are collapsible for sinking in the liquid due to gravitational forces and are expandable for rising in the liquid due to buoyancy forces. As the vessels sink in the liquid, the vessels rotate a shaft for generating energy. In one embodiment, the system includes a tank (190) holding a liquid (194), an air-tight, expandable vessel (100) disposed within the liquid and being adapted to move reciprocally between upper and lower ends of the tank, a conduit (136) attached to the vessel (100) for passing gas into and out of the vessel, and a linkage (198) for selectively coupling the vessel with a rotatable shaft (200). The vessel is moveable between a collapsed state in which the vessel sinks in the liquid due to gravitational forces and an expanded state in which the vessel rises in the liquid due to buoyancy forces.</p> |
