High speed brushless dynamoelectric machine with improved control wheel assembly for excitation system components
US4672248A · kind A · utility
4Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 1986 |
| Grant date | Jun 9, 1987 |
| Priority date | — |
| Expiry date | May 12, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K19/36
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A brushless dynamoelectric machine with a molded insulating control wheel having a rim on whose inner surface the rectifiers and other components of the starting control circuitry are directly mounted. Proximate the central hub of the control wheel is mounted a resistor wheel of metal having axial apertures in which are located cartridge heater-type resistors that are interconnected to provide the starting resistor of the control circuitry. The resistor wheel has external fins that aid in dissipating heat from the resistors and also blow air onto the components mounted on the wheel rim.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.