Patent ID: 6703720
Filing Date: 2004-03-09
Classification: F03D,F05B,Y02E,Y10S

Abstract:
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.