Control of reluctance dynamoelectric machine cooling fluid

Details Control of reluctance dynamoelectric machine cooling fluid Control of reluctance dynamoelectric machine cooling fluid

1998-03-13

1999-04-27

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310 52, 310 58, 310 89, 310168, 310162, H02K 904, H02K 1900

Patent

active

058982469

ABSTRACT:
A cooling arrangement for a high speed open rotor reluctance motor/generator apparatus of the type finding combination use in aircraft applications for engine starting and electrical energy generation in both normal and auxiliary power unit operating conditions. The cooling arrangement identifies fluid flow alternatives which include inlet region redirection of coolant fluid to improve its induction into rotor interpolar space, rotor movement-induced centrifugal pressurizing of coolant using simple and more complex structural elements, machine heating of the coolant fluid, kinetic energy extraction from heated moving coolant fluid and combinations of these arrangements in particular machine configurations. Use of the invention under extremes of machine energy levels and self heating in military and commercial aircraft environments are contemplated.

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