METHOD OF MOTION OF LIFTING SURFACE IN FLUID MEDIUM AND DEVICE FOR REALIZATION OF THIS METHOD ("FLY" AND "FAN" VERSIONS) Russian patent published in 2000 - IPC

FIELD: aviation; wind and hydraulic power engineering; shipbuilding. SUBSTANCE: method of motion of lifting surface in fluid medium is characterized by uniform "flapping" and "angular" motion of lifting surface over entire cycle of rotation. Lifting surface is smoothly rotated at constant angular velocity about its own axis of "angular" rotation. Axis of "angular" rotation is turned at constant angular velocity around axis of "flapping" rotation which is fixed in reference system. Ratio of magnitudes of angular velocities of "angular" and "flapping" rotation is equal to 1:2. Angle between vectors of angular velocities ranges from 90 deg to 180 deg. According to first version of realization of proposed method, each blade of paddle-wheel is rotatable around its own axis which is parallel to axis of wheel and is provided with link-satellite of planetary mechanism; according to second version, each blade of paddle-wheel is rotatable around its own axis which is perpendicular to axis of propeller and is provided with link-satellite of planetary mechanism. Planetary mechanism ensures correspondence of one revolution of blade around axis of wheel or propeller to half revolution of blade around its own axis. Blade of paddle-wheel revolves around its own in opposite direction. EFFECT: improved operational characteristics. 4 cl, 6 dwg