Control motor for a servo valve
US4682063A · kind A · utility
3Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 21, 1986 |
| Grant date | Jul 21, 1987 |
| Priority date | — |
| Expiry date | Jan 21, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86598
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control motor for a servo valve which includes pole screws defining an armature space, first and second spools or coils supported by the pole screws, respectively, a soft metal armature which is resiliently mounted to a thin walled tube and a samarium cobalt permanent magnet. The permanent magnet polarizes the armature so that when the spools or coils are energized, the armature will move toward one of the coils and away from the other coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.