초록 ▼

In a wind turbine assembly incorporating a diffuser, the diffuser includes an articulated duct formed of a set of members, such as the sectors of a conic section, which are pivotable about axes in a plane normal to the turbine axis. To permit an enlargement or contraction of the articulated duct, th

In a wind turbine assembly incorporating a diffuser, the diffuser includes an articulated duct formed of a set of members, such as the sectors of a conic section, which are pivotable about axes in a plane normal to the turbine axis. To permit an enlargement or contraction of the articulated duct, the members are joined by flexible gussets or, alternatively, are configured for overlapping. Springs offset from the pivoting axes are attached to the members to provide a bistable attitude thereto. In response to high winds, the spring forces are overcome by the wind forces on the articulated duct to allow the members to pivot inwardly reducing the effective wind capture area of the diffuser. The diffuser is further fabricated with slots between sections of duct to enlarge the effective area swept by the turbine blades for increased power availability from the turbine.

대표청구항 ▼

A wind turbine assembly comprising: a wind turbine; a set of ducts enclosing an axis of said turbine, said ducts being of progressively larger diameter to provide a plurality of slots therebetween to control the flow of wind past blades of said turbine, one of said ducts being articulated for varyin

A wind turbine assembly comprising: a wind turbine; a set of ducts enclosing an axis of said turbine, said ducts being of progressively larger diameter to provide a plurality of slots therebetween to control the flow of wind past blades of said turbine, one of said ducts being articulated for varying the cross sectional area thereof to further control the flow of wind past said blades; and deployment means coupled to said articulated duct for alternatively opening said articulated duct to a deployed state upon a manual triggering of said opening, and closing said articulated duct to a stowed state, upon a tiggering by said wind.