AC generator
US5019733A · kind A · utility
43Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1988 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Sep 21, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An excitation-type AC generator having stator and field coils cooled by a fluid passing through passageways within the rotating shaft of the rotor. The fluid, either engine oil or outside air, is drawn into a hole in the end of the rotating shaft, transported axially through a passageway in the shaft, then forced radially outward through channels in the rotating shaft into the areas surrounding the field and stator coils, absorbing the heat generated and eliminating any need for an externally mounted centrifugal fan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.