FIELD: lifting rotors of vertical takeoff flying vehicles.
SUBSTANCE: proposed propeller has blades articulated on main-rotor shaft and connected with collective and cyclic pitch control mechanism. Propeller is made in form of semi-sphere with hump directed upward which is separated into two equal parts in central plane which are just blades. Blades are formed by dense and strong material secured on load-bearing arches, rigidity arches and additional transversal arches. Load-bearing arches are mounted at minimum distance from one another and are articulated on head of main-rotor shaft by their central parts. Rigidity arches are made in form of half-circles rigidly connected with external ends of load-bearing arches. Additional transversal rigidity arches are rigidly connected with load-bearing arches and rigidity arches; load-bearing arches are connected with wobble plate and control mechanism by means of rods and hinges.
EFFECT: reduced overall dimensions of propeller; increased lifting force.
2 dwg
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|
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