COMPACT AERODYNAMIC-TYPE REVOLUTION GOVERNOR FOR WIND-POWER PLANT Russian patent published in 2006 - IPC F03D7/04 

FIELD: wind-power engineering; devices for control of rotational speed and torque of wind wheels.

SUBSTANCE: proposed wind wheel has hub with bearing units rigidly secured on it; blades mounted in these bearing units are turnable relative to their axes located in cone-shaped patterns relative to wind wheel axis. Wind wheel hub is provided with device having effect on turn of blade; this device consists of guide with at least two springs of different tension which are secured on bearing parts of crank bell blades connected with pusher sliding over guide which is supported by spring of lesser tension; provision is also made for spring compression control unit. Springs are taken out of operation in turn; first spring of lesser tension and then spring of larger tension.

EFFECT: enhanced accuracy of maintenance of wind wheel revolutions; improved orientation of wind wheel to wind; avoidance of effect of tower aerodynamic trail; simplified construction.

1 dwg