Piezoelectric rotary motor with high rotation speed and bi-directional operation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 22, 2012
Grant Date -
Mar 3, 2011
app pub date -
Sep 1, 2010
filing date -
Sep 1, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Piezoelectric motor that provides high speed and bi-directional operation. A first rotor is disposed about a first shaft, and a second rotor separate from the first rotor is disposed about the first shaft and a second shaft. Each of the rotors and shafts are centered on a common axis. An annular shaped first piezoelement is centered on the axis and fixed to the housing. First and second annular piezoelements are disposed within the first rotor, configured to motivate rotation of the second shaft in a first rotation direction when stimulated with a first exciter voltage. The third and fourth piezoelement are disposed within the second rotor, configured to motivate rotation of the second shaft in a second direction (opposed from the first direction) when stimulated with an exciter voltage.
First Claim
Other Claims data not available
