Air gap baffle ring for a dynamoelectric machine

Details Air gap baffle ring for a dynamoelectric machine Air gap baffle ring for a dynamoelectric machine

1992-03-23

1993-01-05

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310260, H02K 900, H02K 908, H02K 346

Patent

active

051773856

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.

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