Air gap baffle ring for a dynamoelectric machine
US5177385A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1992 |
| Grant date | Jan 5, 1993 |
| Priority date | — |
| Expiry date | Mar 23, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K3/487
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A simplified, readily removable air gap baffle ring for a gas cooled dynamoelectric machine, such as a turbine generator. The baffle ring comprises two composite rings with a seal material sandwiched therebetween and bonded into a single ring structure. The seal ring attaches to finger plate extensions which are an integral part of the generator core, and forms an air gap seal between the rotor retaining ring and end wedges which extend from the stator coil slots. The air gap baffle assembly of the present invention effectively seals the high pressure zone of the exciter end of the generator, from the lower pressure radial air gap zone located between the generator rotor and stator, to thereby force cooling gas to flow into the rotor and stator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.