US 6,703,720 B1Granted

Wind powered generator device

OwnerMichael Ferraroinventor

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Abstract

A wind powered generating device comprises a tube cluster, a collector assembly, and a turbine assembly. The collector assemblies utilize sails that can be rotated in the direction of the wind to direct wind down through an inlet tube to a central outlet tube. The central outlet tube is narrowed at a portion, and a turbine is mounted at this narrowed portion to take advantage of the venturi effect, which accelerates the air as it passes the turbine. This permits reliable and efficient operation in areas that were not formerly windy enough to be economically feasible. Alternative embodiments of the invention include mechanisms for dealing with violent weather conditions, a first of which allows excess wind to bleed off behind and between the sails, and a second which collapses and covers the sails with a protective sheath/sock.

Claims6

Dependent claims

A wind driven power generating device to be driven by an airflow, the device comprising:

a tube cluster comprising
a central outlet tube having a narrowed center for channeling an upward flowing airflow;
a plurality of inlet tubes;
each inlet tube being defined by a cylindrical wall;
each inlet tube further having a collector end located at a distance from said central outlet tube, each inlet tube communicating with said central outlet tube for delivering airflow from said inlet tube collector end to said central outlet tube;
each collector end having a wind collector assembly comprising a plurality of sails located adjacent to one another, a bottom end of each said individual sail extending along a curved boom;
and
the generating device further including a turbine in the outlet tube narrowed center to be driven by the airflow, each said wind collector assembly comprising;
a vertical mast;
a curved boom;
a flexible sail connected at its top end to the mast and at its, bottom end to the curved boom;
a steering sail for orienting said wind collector assembly with respect to an ambient airflow;
a tensioner connected to said curved boom and to said bottom end of said sail whereby wind loads on said sail can be managed;
a spring-loaded drum;
and
a wound cable affixed on one end to said bottom end of said sail, and affixed on another end to said drum, said drum providing constant tension on said sail.

13 more elements

Dependencies are inferred from the claim text.