Magnetostrictive linear motor
US5039894A · kind A · utility
35Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1990 |
| Grant date | Aug 13, 1991 |
| Priority date | — |
| Expiry date | Oct 11, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N35/00
Abstract
The magnetostrictive rod of a linear motor is made of twinned single crys Terfenol-D having its crystalline axis aligned with the rod axis to produce non-uniform transverse magnetostriction during axial magnetostrictive elongation of the rod in response to a triggering magnetic field. Slide bearing forces applied through spring biased support plates are limited to flat surfaces formed on the rod perpendicular to a transverse axis along which the rod is magnetostrictively contracted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.