Control motor for a servo-valve
US5140203A · kind A · utility
5Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1991 |
| Grant date | Aug 18, 1992 |
| Priority date | — |
| Expiry date | Jun 26, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F7/088
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control motor for a servo-valve includes elements of a control motor including a yoke, permanent magnet, control coil and armature mounted to one another. An output member transmits the pivotal movements of the armature. A frequency dependent passive electric dampening means is formed as an annular disc, and located adjacent the control means to compensate for non-linearities in frequency response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.