patent · US6664692
Electrical machine
16 December 2003
Indexed reference — no copy held
This patent is cited by material in the archive, so it is indexed here by number, title and inventor. The archive holds no copy of its text.
Abstract
A slow moving electrical machine includes an annular set of windings on iron cores of laminated sheets or pressed iron powder, and a corresponding annular set of permanent magnets, the windings being concentrated, and the iron cores having windings being arranged alternatingly with iron cores without windings. The machine has a number of grooves between the cores which is different from a number of poles of the permanent magnets, the number of grooves s and the number of pole...
Provenance
- Collection
- Cited prior art
- Original PDF
- patentimages.storage.googleapis.com →
- Filed
- 2000-05-25
- Source
- Google Patents bibliographic record
- Granted
- 2003-12-16
- Inventors
- Bjorn Kristoffersen; Smart Motor AS