ROTARY BLADE ENGINE FOR CONVECTION AIR AND LIQUID FLOWS Russian patent published in 2007 - IPC F03D3/00 

FIELD: power engineering.

SUBSTANCE: invention relates to devices using kinetic energy of translational motion of convection air and liquid flows at generation of electric energy or execution of mechanical work. Invention can be used in wind and hydraulic power generation, for instance, in wind and hydraulic power stations. Proposed rotary blade engine for convection air and liquid flows has wings made of shaped blades connected through end piece with, hub, and rotating shaft on which hub is secured. Wings are arranged parallel to each other relative to axis of vertical rotation shaft, being displaced relative to each other along wing span so that tip of wing is arranged at a distance from axis of vertical rotating shaft not greater than distance from wing tip to maximum horizontal cross section of aerodynamic profile of blade. Blades having concave-convex aerodynamic profiles with variable angles of tilting to plane of rotation square to axis of vertical rotating shaft are bent along and across wing span along exponential curve and are directed by ends bent along wing span in opposite sides relative to axis of vertical rotating shaft. The larger is the distance of aerodynamic profile along wing span from axis of vertical rotating shaft, the larger the angle of tilting of aerodynamic profile to plane of rotation.

EFFECT: enlarged operating capabilities.