Piezo-electric motor
US5233257A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1991 |
| Grant date | Aug 3, 1993 |
| Priority date | — |
| Expiry date | Sep 13, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/103
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The instant invention relates to a piezo-electric motor. The motor comprises: PA1 a support (2) PA1 a stator (8) integral with the support (2) PA1 a rotor (30) rotatably mounted with respect to the support, the rotor being capable of being displaced in a displacement plane (Pdm) about a geometric axis of rotation (XI) PA1 transmission means (36) to transmit the vibratory movement of the stator (8) to the rotor (30) and to rotate it and PA1 means to support (40) the rotor on the stator the rotor being characterized in that the stator (8) has vibratory movement having velocity components essentially normal to the displacement plane (Pdm) of the rotor (30), the stator (8) cooperating with means for converting the vibratory movement of the stator in order to rotate the rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.