ESVAZHINSKY'S HELICOPTER WOBBLE PLATE Russian patent published in 2013 - IPC B64C27/605 

FIELD: transport.

SUBSTANCE: invention relates to production of helicopters. Proposed wobble plate comprises rotary ring with blade turn links, transverse and lengthwise control links and rotor total pitch control means. Wobble plate bearing comprises cage with cutouts whereto balls are fitted limited by cages. Inner cage runs free. Outer cage rollway half is shaped to stretched sinusoid while another half is straight. Cup is arranged at spherical bearing to turn forward-backward and sideways and to displace along the shaft to control general pitch. Note here that said cup is locked. Revolving rotor blades very their angle of attack at every position and oscillate in vertical and horizontal planes with turns to side of rotation.

EFFECT: higher speed and helicopter controllability.

2 dwg