| 摘要 |
There is disclosed a structure (300) comprising a buoyant member (305) . There is a global need for renewable energy sources. There is also a global shortage of fresh water. The present invention provides structure (300) comprising buoyant member (305) , and at least one pump means (310) , wherein, in use, the at least one pump means (310) is driven by rise and/or fall of the buoyant member (305) with rise and/or fall with the level of fluid, such as the level of tide or varying water level from a source such as from a flowing river. The invention also provides a water purification and/or electrical generation apparatus (A) including a pump device (B) including the structure (300) . |
