主权项 |
1. A tunable fluid flow generator for generating energy from a flow of a surrounding fluid, the generator comprising:
a frame moveable through said fluid, said frame comprising:
a plurality of frame portions comprising at least a first, adjustable frame portion and a second frame portion, wherein said adjustable frame portion is moveable relative to said second frame portion;a cavity formed between said first and said second frame portions, said cavity having an opening on a surface of said frame connecting to said cavity; anda mechanical guide joining said plurality of frame portions; a contacting member comprising a first end and a second end, the contacting member
positioned to cover said opening to at least partially enclose said cavity and to contact a fluid flow over said surface of said frame,wherein the contacting member is connected to said frame at said first end of said contacting member, and
said contacting member is moveable relative to said frame due to said fluid flow; an elastic member coupled to said adjustable frame portion and coupled to said contacting member at said second end, wherein movement of said adjustable frame portion alters a tension in said elastic member for tuning a response of said fluid flow generator to said fluid flow; an electrogenerative portion mechanically coupled between said contacting member and said frame for generating electricity from movement of said contacting member relative to said frame; and an electrical output line electrically coupled between said electrogenerative portion and an electrical load. |