Rotor for salient-pole machine

Details Rotor for salient-pole machine Rotor for salient-pole machine

1987-10-07

1988-05-31

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 61, 310269, H02K 900

Patent

active

047483547

ABSTRACT:
A rotor for a salient-pole machine comprises a rotor rim rotatable with a rotary shaft and magnetic poles fixedly connected at prescribed intervals to the rotor rim on its outer periphery. Axially extending ventilation grooves are formed on the rotor rim between respective adjacent poles. The pole is connected to the rotor rim by means of a dovetail joint consisted of a dovetail groove on the rotor rim and a dovetail tenon on the bottom of the pole. The ventilation groove has a sectional profile in the perpendicular to the rotary shaft which is defined by connecting necessary lengths required in the material strength of groups of lines respectively originating from the corners of the dovetail groove.

REFERENCES:
patent: 2974239 (1961-03-01), Havelka
patent: 3514647 (1970-05-01), Lipstein
patent: 4496863 (1985-01-01), Sawatani

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