초록 ▼

A water turbine for open stream use featuring a vertical-axis cross-flow turbine in which cyclically-pitching blades are supported from one end only to permit the supporting structure and power generation gear to be supported out of the water. In preferred embodiments, there is independent pitch con

A water turbine for open stream use featuring a vertical-axis cross-flow turbine in which cyclically-pitching blades are supported from one end only to permit the supporting structure and power generation gear to be supported out of the water. In preferred embodiments, there is independent pitch control of the turbine blades to make the blades responsive to the instantaneous flow in their vicinities.

대표청구항 ▼

A water turbine for generation of electrical power from a flowing body of water, comprising a plurality of vertically-extending blades, each with a hydrofoil horizontal cross section, a blade support structure supporting the upper ends only of said blades, said blade support structure including a ce

A water turbine for generation of electrical power from a flowing body of water, comprising a plurality of vertically-extending blades, each with a hydrofoil horizontal cross section, a blade support structure supporting the upper ends only of said blades, said blade support structure including a central hub and radially extending elements extending from said hub for supporting said blades located radially of said hub, an electrical-power generator connected to said central hub, pitch control means for cyclically pitching said blades to maintain said blades at useful angles of attack for generation of electrical power, said pitch control means including means for independently controlling the pitch of individual blades in response to the instantaneous local flow conditions in the vicinity of the individual blade, and means for supporting said generator and blade support structure above the surface of said flowing body of water so that essentially only said blades penetrate said body of water.