ROTARY PIEZOELECTRIC ENGINE Russian patent published in 2017 - IPC H02N2/10 H02K41/06 

FIELD: electricity.

SUBSTANCE: rotary piezoelectric engine comprises the immovable housing, the rotor with the shaft in the bearing supports of the immovable housing. Inside the fixed housing, the movable housing is coaxially arranged, which is connected to the immovable housing by resilient elements. Two piezoelements with pushers for direct rotor rotation and two piezoelements with pushers for reverse rotor rotation are fixed rigidly on the movable housing. The piezoelements with pushers with one direction of rotation are arranged diametrically opposite. The power supply of the piezoelements with pushers has one output channel for direct rotor rotation and one output channel for reverse rotor rotation. One of the piezoelements with a pusher for both rotation directions is connected through the power supply phase shifter.

EFFECT: increasing the efficiency and the specific power, reducing the overall dimensions, the possibility of reverse rotation, increasing the structure service life and reliability due to the structure equilibrium and the rotational-frictional mode of transferring the torque to the rotor.

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