FLUID DRIVEN TURBINE BLADE AND TURBINE USING SAME

摘要

A turbine (11) is described for deriving energy from a fluid flow. The turbine has a plurality of generally arcuate blades (12) that are rotatable about a rotational axis transverse to the direction of fluid flow. Each blade comprises a plurality of separately formed straight sections (27) that are straight when unstressed, and that are joined to form a blade in which at least some adjacent sections (27) are inclined at an angle to one another.