Integrated drive generator having magnet generator on second sha

Details Integrated drive generator having magnet generator on second sha Integrated drive generator having magnet generator on second sha

1989-09-19

1991-02-05

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310112, H02K 1926

Patent

active

049908073

ABSTRACT:
An integrated drive generator (40) for generating constant frequency alternating current which is driven by a drive shaft (12) at variable rotational speeds includes a constant speed drive having an input coupled to the drive shaft and at least one output which rotates at a fixed rotational velocity in response to the drive shaft rotating at a variable velocity and which drives a first drive shaft at a fixed rotational velocity and a second drive shaft at a fixed rotational velocity, an alternating current generator (23), having a rotor (37) mounted on a first shaft (42), with an outside periphery having a second radius farthest from an axis of rotation of the first shaft; an exciter (20) having a rotor (32) mounted on the first shaft, electrically coupled to a field winding of the generator, for supplying electrical power to the field winding of the alternating current generator; a permanent magnet generator (18), having a rotor (24) mounted on the second shaft, electrically coupled to the exciter, for supplying electrical power to a field winding of the exciter, with an outside periphery having a second radius farthest from an axis of rotation of the second shaft and wherein a sum of the first and second radii is greater than a distance between axes of rotation of the shafts.

REFERENCES:
patent: 3908130 (1975-09-01), Lafuze
patent: 3908161 (1975-09-01), Messenger
patent: 4252035 (1981-02-01), Cordiner et al.
patent: 4609842 (1986-09-01), Aleem et al.
patent: 4661735 (1987-04-01), Miki et al.
patent: 4663581 (1987-05-01), Glennon
patent: 4728841 (1988-03-01), Sugden
patent: 4743776 (1988-05-01), Baehler et al.
patent: 4755736 (1988-07-01), Fleugel
patent: 4772802 (1988-09-01), Glennon et al.
patent: 4797590 (1989-01-01), Raad et al.

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