Rotor assembly having two core portions each with a reduced back portion
US8035273B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2007 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | Mar 21, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor for an electric machine having a number of poles includes a shaft that extends along a portion of an axis and defines an outer surface. A first core portion is formed as a single inseparable component and includes a first portion that extends from the outer surface to a first outside diameter to define a first thickness, and a second portion spaced axially from the first portion that includes a reduced back portion that extends from an inside diameter to the first outside diameter to define a second thickness that is less than the first thickness. A second core portion is connected to the first core portion and includes a second outside diameter that is substantially the same as the first outside diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.