Low power consumption electromagnetic retarder armature rotor
US4488074A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 1982 |
| Grant date | Dec 11, 1984 |
| Priority date | — |
| Expiry date | Sep 27, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K49/046
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an electromagnetic retarder armature rotor, comprising a disk (1) connected to a securing collar (2) by means of a ring of rams (4, 4.sub.1) forming ventilation fins, the largest diameter portions of these arms projecting axially from the disk and their tops being connected together by an annular flange (5) parallel to the disk, the assembly of the disk, the collar, the arms and the flange forming a single molded block, if we call D the outer diameter of the disk (1), a the axial distance between this disk (1) and the flange (5), b the radial width of this flange (5) and r the inner radius of said flange (5), the ratio Db/ar is between 10 and 30.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.