Solenoid actuator with magnetic sleeving
US9046188B2 · kind B2 · utility
3Cited by
11References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2012 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Sep 3, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F7/1615
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to an electromagnetic actuator. The actuator comprises a casing, a sleeve, coils, a permanent magnet, cores and a movable plunger. The present disclosure is unusual in that the sleeve is made of magnetic material. The sleeve enables a single component to mechanically and hydraulically isolate the plunger from the coils. The sleeve is also made of a material having a lower saturation induction than that of the materials used in other parts of the magnetic circuit. The actuator is also suitable for incorporation into a submerged cryogenic valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.