Electromagnetic actuator
US6827331B1 · kind B1 · utility
15Cited by
18References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 15, 2001 |
| Grant date | Dec 7, 2004 |
| Priority date | — |
| Expiry date | Feb 28, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2007/086
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention is based on an electromagnetic actuator, especially for activating a valve, having at least one electromagnet (10) that acts on a correspondingly designed armature surface (20) of a moveable armature (22) in a first effective range (12) by way of at least one first conical and/or stepped pole face (18) using a magnetic field (16) generated by at least one coil (14).It is proposed that the electromagnet (10) act on a corresponding armature surface (28) by way of at least a second pole face (26) in at least a second effective range (24).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.