PIEZOELECTRIC MOTOR Russian patent published in 1996 - IPC

FIELD: slow-speed gearless drives of various mechanisms. SUBSTANCE: motor has stator with oscillator; the latter has piezoid in the form of flat ring with electrodes and bandage. Bandage is built up of separate arched members carrying pushers loosely fitted to effective cylindrical surface of piezoid. Electrodes are, essentially, insulated quadrants abutting arched members of bandage. oscillator may be made in the form of set of electrically and acoustically isolated quadrants. Bandage members may have radial teeth and 1- or U-shaped pushers with bandage members secured between surfaces of oscillator and teeth. EFFECT: improved design. 3 cl, 8 dwg