US 12,143,036 B1
Piezoelectric motor using longitudinal and bending vibration modes
Sergii Petrenko, Kyiv (UA); Anatolii Omelian, Kyiv (UA); Valentin Zhelyaskov, Sarasota, FL (US); and Mark Philip Broderick, Bradenton, FL (US)
Assigned to DJZ Holdings, LLC, Boca Raton, FL (US)
Filed by DJZ Holdings, LLC, Boca Raton, FL (US)
Filed on Apr. 3, 2024, as Appl. No. 18/626,032.
Int. Cl. H02N 2/10 (2006.01)
CPC H02N 2/103 (2013.01) 20 Claims
OG exemplary drawing
 
1. A piezoelectric device comprising:
a piezoresonator body comprising a contact element; wherein the piezoresonator body comprises a longitudinal axis, a transverse axis, a natural resonant frequency (v1) of first-order longitudinal standing vibrations along the transverse axis and a natural resonant frequency (v2) of second-order bending standing vibrations along the longitudinal axis, and v1<v2≤1.1v1; the piezoresonator body further comprising opposing first and second surfaces;
a pair of excitation electrodes disposed on the first surface; and
a common electrode disposed on the second surface.