Linear induction motor with damping cage
US4027597A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 2, 1975 |
| Grant date | Jun 7, 1977 |
| Priority date | — |
| Expiry date | Oct 2, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K41/025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A linear induction motor, particularly for levitation-type vehicles (e.g., magnetic-suspension vehicles), has a stator juxtaposed with a reaction rail and formed with a plurality of longitudinally spaced windings or coils interdigitated with damping bars forming a damping cage with a pair of longitudinal conductors flanking the stator core. The latter is constituted by a lamination stack and is formed, in the region facing the reaction rail, with a plurality of slots in which portions of the coils are received. The slots increase in depth outwardly and the coils have portions which progressively recede from the reaction rail outwardly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.