Abstract: A piezoelectric motor comprises includes a stator (1) and a rotor (3). The stator (1) has a housing (7), a piezoelectric oscillator (6) generating radial mode vibrations and mounted on the housing (7), said oscillator including a piezoelectric cell (9) with electrodes (13) and at least two pushers (10). Each pusher (10) has one end secured to at least one flat surface of the piezoelectric cell (9) so that a gap (14) is provided between the piezoelectric cell (9) and the pusher (10). The other end of each pusher (10) rests against the rotor (3).

Abstract: A piezoelectric motor of the invention comprises a stator and a rotor one of which includes at least one first piezoelectric oscillator. The rotor consists of a first and a second parts one of which parts includes a second piezoelectric oscillator. Said parts of the rotor are mounted for relative rotation about the axis of rotation. The first part is in contact with the stator along the first surface of frictional interaction and with the second part along the second surface of frictional interaction. Each surface of frictional interaction is formed by rotation of at least one straight line length about the axis of rotation of the rotor.