Linear motor for the high-speed reciprocating movement of a rotor slide possessing mass
US4618789A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 12, 1984 |
| Grant date | Oct 21, 1986 |
| Priority date | — |
| Expiry date | Jul 12, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K41/0356
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A linear motor for the high-speed reciprocating movement of a mass-possessing rotor slide component and particularly of a radiation filter, with parallel flat stator plates with permanent magnets which are fitted to the facing sides of the stator plates and set up a magnetic field across the air gap between them. Fitted to the slide is a coil which can be slid in the permanent magnetic field. The coil consists of an aluminium foil provided at its surface with an insulating layer, which foil is wound to form an air-cored coil, and the slide is supported on gas bearings which extend through the aluminium bridges between the stator plates. To avoid impacts during acceleration and braking linear motors working reciprocally are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.